Binary size is significant increased from `1.46.0` to `1.51.0`

[chaoticlonghair]

In Brief

Our project changed the locked rust-toolchain from 1.46.0 to 1.51.0.
Then binary size (x86_64-unknown-linux-gnu, release) is significant increased (49 MiB -> 53 MiB, +8.2%).

Details

Size of .strtab section is significant increased

I used cargo build --release to build the same code with rust 1.46.0 and rust 1.51.0.

Then I analyzed the binary with readelf -SW target/release/program.

I got the follow result:

Build with "rust 1.46.0" .

 Section Headers:
 [Nr] Name              Type            Address          Off    Size   ES Flg Lk Inf Al
... omit ...
 [28] .comment          PROGBITS        0000000000000000 2085012 000056 01  MS  0   0  1
 [29] .debug_aranges    PROGBITS        0000000000000000 2085070 00b800 00      0   0 16
 [30] .debug_pubnames   PROGBITS        0000000000000000 2090870 0319df 00      0   0  1
 [31] .debug_info       PROGBITS        0000000000000000 20c224f 1e00e3 00      0   0  1
 [32] .debug_abbrev     PROGBITS        0000000000000000 22a2332 00b131 00      0   0  1
 [33] .debug_line       PROGBITS        0000000000000000 22ad463 117909 00      0   0  1
 [34] .debug_frame      PROGBITS        0000000000000000 23c4d70 0003d0 00      0   0  8
+[35] .debug_str        PROGBITS        0000000000000000 23c5140 0e85a0 01  MS  0   0  1
 [36] .debug_loc        PROGBITS        0000000000000000 24ad6e0 2871ca 00      0   0  1
 [37] .debug_macinfo    PROGBITS        0000000000000000 27348aa 000008 00      0   0  1
 [38] .debug_pubtypes   PROGBITS        0000000000000000 27348b2 000168 00      0   0  1
+[39] .debug_ranges     PROGBITS        0000000000000000 2734a1a 118370 00      0   0  1
 [40] .debug_macro      PROGBITS        0000000000000000 284cd8a 01f346 00      0   0  1
 [41] .symtab           SYMTAB          0000000000000000 286c0d0 2b2438 18     42 90248  8
+[42] .strtab           STRTAB          0000000000000000 2b1e508 532530 00      0   0  1
 [43] .shstrtab         STRTAB          0000000000000000 3050a38 0001b9 00      0   0  1

Build with "rust 1.51.0" .

 Section Headers:
 [Nr] Name              Type            Address          Off    Size   ES Flg Lk Inf Al
... omit ...
 [28] .comment          PROGBITS        0000000000000000 2026010 000041 01  MS  0   0  1
 [29] .debug_aranges    PROGBITS        0000000000000000 2026060 00ba00 00      0   0 16
 [30] .debug_pubnames   PROGBITS        0000000000000000 2031a60 05090f 00      0   0  1
 [31] .debug_info       PROGBITS        0000000000000000 208236f 1f479a 00      0   0  1
 [32] .debug_abbrev     PROGBITS        0000000000000000 2276b09 00a671 00      0   0  1
 [33] .debug_line       PROGBITS        0000000000000000 228117a 11c9b6 00      0   0  1
 [34] .debug_frame      PROGBITS        0000000000000000 239db30 000310 00      0   0  8
-[35] .debug_str        PROGBITS        0000000000000000 239de40 127597 01  MS  0   0  1
 [36] .debug_loc        PROGBITS        0000000000000000 24c53d7 25f5a8 00      0   0  1
 [37] .debug_pubtypes   PROGBITS        0000000000000000 272497f 000156 00      0   0  1
-[38] .debug_ranges     PROGBITS        0000000000000000 2724ad5 133990 00      0   0  1
 [39] .debug_macro      PROGBITS        0000000000000000 2858465 01f346 00      0   0  1
 [40] .symtab           SYMTAB          0000000000000000 28777b0 2ce278 18     41 87213  8
-[41] .strtab           STRTAB          0000000000000000 2b45a28 85e081 00      0   0  1
 [42] .shstrtab         STRTAB          0000000000000000 33a3aa9 0001aa 00      0   0  1

The difference between the .strtab sections

I don't have enough knowledge about compilation.

I just saw the .strtab was increased too much, so I used the follow command to read the .strtab: readelf -p .strtab target/release/program.

Data in "rust 1.46.0" version looked like this:

  [ 4001d]  _ZN4core3ptr13drop_in_place17h91e8a4684aa5bd75E
  [ 4004d]  _ZN4core3ptr13drop_in_place17h91ebfdfda4ff2f38E
  [ 4007d]  _ZN4core3ptr13drop_in_place17h9891992968ce58b0E
  [ 400ad]  _ZN4core3ptr13drop_in_place17h9d0e94ad475b5353E
  [ 400dd]  _ZN4core3ptr13drop_in_place17ha07d7ac542382d06E
  [ 4010d]  _ZN4core3ptr13drop_in_place17ha178018f01c15180E
  [ 4013d]  _ZN4core3ptr13drop_in_place17ha6141b7b8134a0e9E
  [ 4016d]  _ZN4core3ptr13drop_in_place17ha61ea8e5714dbf7aE
  [ 4019d]  _ZN4core3ptr13drop_in_place17ha82c9971ab670ad1E
  [ 401cd]  _ZN4core3ptr13drop_in_place17hb538543c79f06870E
  [ 401fd]  _ZN4core3ptr13drop_in_place17hb8d87f3da3596f48E

Data in "rust 1.51.0" version looked like this:

  [ 40018]  _ZN4core3ptr211drop_in_place$LT$crossbeam_channel..channel..Sender$LT$ckb_types..core..service..Request$LT$alloc..string..String$C$crossbeam_channel..channel..Receiver$LT$ckb_types..generated..extensions..Alert$GT$$GT$$GT$$GT$17h72b661e6242bc8abE
  [ 4010f]  _ZN4core3ptr212drop_in_place$LT$alloc..sync..Arc$LT$core..cell..UnsafeCell$LT$core..option..Option$LT$core..result..Result$LT$$LP$$RP$$C$alloc..boxed..Box$LT$dyn$u20$core..any..Any$u2b$core..marker..Send$GT$$GT$$GT$$GT$$GT$$GT$17h44ee18b5d1a169d7E
  [ 40207]  _ZN4core3ptr215drop_in_place$LT$core..cell..UnsafeCell$LT$std..sync..mpsc..Flavor$LT$crossbeam_channel..channel..Receiver$LT$$LP$ckb_types..core..service..PoolTransactionEntry$C$ckb_types..core..tx_pool..Reject$RP$$GT$$GT$$GT$$GT$17h9fe3c36d708de64cE
  [ 40302]  _ZN4core3ptr2164drop_in_place$LT$futures_util..future..future..map..MapProjReplace$LT$futures_util..future..try_future..into_future..IntoFuture$LT$futures_util..future..try_future..MapErr$LT$futures_util..future..try_future..AndThen$LT$futures_util..future..try_future..MapErr$LT$futures_util..future..future..Map$LT$futures_channel..oneshot..Receiver$LT$core..result..Result$LT$alloc..string..String$C$std..io..error..Error$GT$$GT$$C$heim_runtime..shims..polyfill..pool..FuturePool..spawn$LT$heim_runtime..shims..polyfill..fs..read_to_string$LT$$RF$str$GT$..$u7b$$u7b$closure$u7d$$u7d$$C$core..result..Result$LT$alloc..string..String$C$std..io..error..Error$GT$$GT$..$u7b$$u7b$closure$u7d$$u7d$$GT$$C$$LT$std..io..error..Error$u20$as$u20$core..convert..Into$LT$heim_common..errors..Error$GT$$GT$..into$GT$$C$futures_util..future..ready..Ready$LT$core..result..Result$LT$uom..si..Quantity$LT$dyn$u20$uom..si..Dimension$u2b$Th$u20$$u3d$$u20$typenum..int..Z0$u2b$Kind$u20$$u3d$$u20$dyn$u20$uom..Kind$u2b$L$u20$$u3d$$u20$typenum..int..Z0$u2b$J$u20$$u3d$$u20$typenum..int..Z0$u2b$T$u20$$u3d$$u20$typenum..int..PInt$LT$typenum..uint..UInt$LT$typenum..uint..UTerm$C$typenum..bit..B1$GT$$GT$$u2b$N$u20$$u3d$$u20$typenum..int..Z0$u2b$I$u20$$u3d$$u20$typenum..int..Z0$u2b$M$u20$$u3d$$u20$typenum..int..Z0$C$dyn$u20$uom..si..Units$LT$f64$GT$$u2b$amount_of_substance$u20$$u3d$$u20$uom..si..amount_of_substance..mole$u2b$mass$u20$$u3d$$u20$uom..si..mass..kilogram$u2b$thermodynamic_temperature$u20$$u3d$$u20$uom..si..thermodynamic_temperature..kelvin$u2b$electric_current$u20$$u3d$$u20$uom..si..electric_current..ampere$u2b$luminous_intensity$u20$$u3d$$u20$uom..si..luminous_intensity..candela$u2b$length$u20$$u3d$$u20$uom..si..length..meter$u2b$time$u20$$u3d$$u20$uom..si..time..second$C$f64$GT$$C$heim_common..errors..Error$GT$$GT$$C$heim_host..sys..linux..boot_time..boot_time..$u7b$$u7b$closure$u7d$$u7d$$GT$$C$$LT$heim_common..errors..Error$u20$as$u20$core..convert..Into$LT$heim_process..errors..ProcessError$GT$$GT$..into$GT$$GT$$C$futures_util..fns..MapOkFn$LT$heim_process..sys..linux..process..procfs..stat..stat..$u7b$$u7b$closure$u7d$$u7d$..$u7b$$u7b$closure$u7d$$u7d$$GT$$GT$$GT$17h7e5e2c2efddf5257E
  [ 40b9b]  _ZN4core3ptr218drop_in_place$LT$crossbeam_channel..channel..Sender$LT$ckb_types..core..service..Request$LT$alloc..string..String$C$crossbeam_channel..channel..Receiver$LT$ckb_types..core..service..PoolTransactionEntry$GT$$GT$$GT$$GT$17hbea8c09cd7b45536E
  [ 40c99]  _ZN4core3ptr219drop_in_place$LT$std..thread..Builder..spawn_unchecked$LT$ctrlc..set_handler$LT$ckb_bin..subcommand..run..run..$u7b$$u7b$closure$u7d$$u7d$$GT$..$u7b$$u7b$closure$u7d$$u7d$$C$$LP$$RP$$GT$..$u7b$$u7b$closure$u7d$$u7d$$GT$17heed4bcf6689faffbE
  [ 40d98]  _ZN4core3ptr2210drop_in_place$LT$pin_project_lite..__private..UnsafeOverwriteGuard$LT$futures_util..future..future..map..Map$LT$futures_util..future..try_future..into_future..IntoFuture$LT$futures_util..future..try_future..MapErr$LT$futures_util..future..try_future..AndThen$LT$futures_util..future..try_future..MapErr$LT$futures_util..future..future..Map$LT$futures_channel..oneshot..Receiver$LT$core..result..Result$LT$alloc..string..String$C$std..io..error..Error$GT$$GT$$C$heim_runtime..shims..polyfill..pool..FuturePool..spawn$LT$heim_runtime..shims..polyfill..fs..read_to_string$LT$$RF$str$GT$..$u7b$$u7b$closure$u7d$$u7d$$C$core..result..Result$LT$alloc..string..String$C$std..io..error..Error$GT$$GT$..$u7b$$u7b$closure$u7d$$u7d$$GT$$C$$LT$std..io..error..Error$u20$as$u20$core..convert..Into$LT$heim_common..errors..Error$GT$$GT$..into$GT$$C$futures_util..future..ready..Ready$LT$core..result..Result$LT$uom..si..Quantity$LT$dyn$u20$uom..si..Dimension$u2b$Th$u20$$u3d$$u20$typenum..int..Z0$u2b$Kind$u20$$u3d$$u20$dyn$u20$uom..Kind$u2b$L$u20$$u3d$$u20$typenum..int..Z0$u2b$J$u20$$u3d$$u20$typenum..int..Z0$u2b$T$u20$$u3d$$u20$typenum..int..PInt$LT$typenum..uint..UInt$LT$typenum..uint..UTerm$C$typenum..bit..B1$GT$$GT$$u2b$N$u20$$u3d$$u20$typenum..int..Z0$u2b$I$u20$$u3d$$u20$typenum..int..Z0$u2b$M$u20$$u3d$$u20$typenum..int..Z0$C$dyn$u20$uom..si..Units$LT$f64$GT$$u2b$amount_of_substance$u20$$u3d$$u20$uom..si..amount_of_substance..mole$u2b$mass$u20$$u3d$$u20$uom..si..mass..kilogram$u2b$thermodynamic_temperature$u20$$u3d$$u20$uom..si..thermodynamic_temperature..kelvin$u2b$electric_current$u20$$u3d$$u20$uom..si..electric_current..ampere$u2b$luminous_intensity$u20$$u3d$$u20$uom..si..luminous_intensity..candela$u2b$length$u20$$u3d$$u20$uom..si..length..meter$u2b$time$u20$$u3d$$u20$uom..si..time..second$C$f64$GT$$C$heim_common..errors..Error$GT$$GT$$C$heim_host..sys..linux..boot_time..boot_time..$u7b$$u7b$closure$u7d$$u7d$$GT$$C$$LT$heim_common..errors..Error$u20$as$u20$core..convert..Into$LT$heim_process..errors..ProcessError$GT$$GT$..into$GT$$GT$$C$futures_util..fns..MapOkFn$LT$heim_process..sys..linux..process..procfs..stat..stat..$u7b$$u7b$closure$u7d$$u7d$..$u7b$$u7b$closure$u7d$$u7d$$GT$$GT$$GT$$GT$17he0b80f1db643d29eE
  [ 4165f]  _ZN4core3ptr228drop_in_place$LT$futures..sync..mpsc..Sender$LT$$LP$futures..sync..oneshot..Sender$LT$core..result..Result$LT$hyper..body..chunk..Chunk$C$ckb_miner..client..RpcError$GT$$GT$$C$jsonrpc_core..types..request..MethodCall$RP$$GT$$GT$17h31894c90ae4df6f2E
  [ 41767]  _ZN4core3ptr251drop_in_place$LT$alloc..sync..Arc$LT$futures..sync..mpsc..Inner$LT$$LP$futures..sync..oneshot..Sender$LT$core..result..Result$LT$hyper..body..chunk..Chunk$C$ckb_miner..client..RpcError$GT$$GT$$C$jsonrpc_core..types..request..MethodCall$RP$$GT$$GT$$GT$17h675971abbd3df620E
  [ 41886]  _ZN4core3ptr256drop_in_place$LT$std..thread..Builder..spawn_unchecked$LT$ckb_memory_tracker..process..track_current_process$LT$ckb_rocksdb..optimistic_transaction_db..OptimisticTransactionDB$GT$..$u7b$$u7b$closure$u7d$$u7d$$C$$LP$$RP$$GT$..$u7b$$u7b$closure$u7d$$u7d$$GT$17hc52d6b58bc6d599fE
  [ 419aa]  _ZN4core3ptr259drop_in_place$LT$crossbeam_channel..channel..Receiver$LT$ckb_types..core..service..Request$LT$$LP$alloc..sync..Arc$LT$ckb_types..core..views..BlockView$GT$$C$ckb_verification_traits..Switch$RP$$C$core..result..Result$LT$bool$C$ckb_error..Error$GT$$GT$$GT$$GT$17h60a1f6cbdf514b3eE
  [ 41ad1]  _ZN4core3ptr261drop_in_place$LT$crossbeam_channel..channel..Sender$LT$ckb_types..core..service..Request$LT$alloc..string..String$C$crossbeam_channel..channel..Receiver$LT$$LP$ckb_types..core..service..PoolTransactionEntry$C$ckb_types..core..tx_pool..Reject$RP$$GT$$GT$$GT$$GT$17h5ef845f66a3f0eecE
  [ 41bfa]  _ZN4core3ptr3327drop_in_place$LT$pin_project_lite..__private..UnsafeOverwriteGuard$LT$futures_util..future..future..map..Map$LT$futures_util..future..try_future..into_future..IntoFuture$LT$futures_util..future..try_future..AndThen$LT$futures_util..future..try_future..AndThen$LT$futures_util..future..try_future..MapErr$LT$futures_util..future..future..Map$LT$futures_channel..oneshot..Receiver$LT$core..result..Result$LT$alloc..string..String$C$std..io..error..Error$GT$$GT$$C$heim_runtime..shims..polyfill..pool..FuturePool..spawn$LT$heim_runtime..shims..polyfill..fs..read_to_string$LT$alloc..string..String$GT$..$u7b$$u7b$closure$u7d$$u7d$$C$core..result..Result$LT$alloc..string..String$C$std..io..error..Error$GT$$GT$..$u7b$$u7b$closure$u7d$$u7d$$GT$$C$heim_process..sys..linux..process..procfs..stat..stat..$u7b$$u7b$closure$u7d$$u7d$$GT$$C$futures_util..future..ready..Ready$LT$core..result..Result$LT$heim_process..sys..linux..process..procfs..stat..Stat$C$heim_process..errors..ProcessError$GT$$GT$$C$heim_process..sys..linux..process..procfs..stat..stat..$u7b$$u7b$closure$u7d$$u7d$$GT$$C$futures_util..future..try_future..MapOk$LT$futures_util..future..try_future..MapErr$LT$futures_util..future..try_future..AndThen$LT$futures_util..future..try_future..MapErr$LT$futures_util..future..future..Map$LT$futures_channel..oneshot..Receiver$LT$core..result..Result$LT$alloc..string..String$C$std..io..error..Error$GT$$GT$$C$heim_runtime..shims..polyfill..pool..FuturePool..spawn$LT$heim_runtime..shims..polyfill..fs..read_to_string$LT$$RF$str$GT$..$u7b$$u7b$closure$u7d$$u7d$$C$core..result..Result$LT$alloc..string..String$C$std..io..error..Error$GT$$GT$..$u7b$$u7b$closure$u7d$$u7d$$GT$$C$$LT$std..io..error..Error$u20$as$u20$core..convert..Into$LT$heim_common..errors..Error$GT$$GT$..into$GT$$C$futures_util..future..ready..Ready$LT$core..result..Result$LT$uom..si..Quantity$LT$dyn$u20$uom..si..Dimension$u2b$Th$u20$$u3d$$u20$typenum..int..Z0$u2b$Kind$u20$$u3d$$u20$dyn$u20$uom..Kind$u2b$L$u20$$u3d$$u20$typenum..int..Z0$u2b$J$u20$$u3d$$u20$typenum..int..Z0$u2b$T$u20$$u3d$$u20$typenum..int..PInt$LT$typenum..uint..UInt$LT$typenum..uint..UTerm$C$typenum..bit..B1$GT$$GT$$u2b$N$u20$$u3d$$u20$typenum..int..Z0$u2b$I$u20$$u3d$$u20$typenum..int..Z0$u2b$M$u20$$u3d$$u20$typenum..int..Z0$C$dyn$u20$uom..si..Units$LT$f64$GT$$u2b$amount_of_substance$u20$$u3d$$u20$uom..si..amount_of_substance..mole$u2b$mass$u20$$u3d$$u20$uom..si..mass..kilogram$u2b$thermodynamic_temperature$u20$$u3d$$u20$uom..si..thermodynamic_temperature..kelvin$u2b$electric_current$u20$$u3d$$u20$uom..si..electric_current..ampere$u2b$luminous_intensity$u20$$u3d$$u20$uom..si..luminous_intensity..candela$u2b$length$u20$$u3d$$u20$uom..si..length..meter$u2b$time$u20$$u3d$$u20$uom..si..time..second$C$f64$GT$$C$heim_common..errors..Error$GT$$GT$$C$heim_host..sys..linux..boot_time..boot_time..$u7b$$u7b$closure$u7d$$u7d$$GT$$C$$LT$heim_common..errors..Error$u20$as$u20$core..convert..Into$LT$heim_process..errors..ProcessError$GT$$GT$..into$GT$$C$heim_process..sys..linux..process..procfs..stat..stat..$u7b$$u7b$closure$u7d$$u7d$..$u7b$$u7b$closure$u7d$$u7d$$GT$$C$heim_process..sys..linux..process..procfs..stat..stat..$u7b$$u7b$closure$u7d$$u7d$$GT$$GT$$C$futures_util..fns..MapOkFn$LT$heim_process..sys..linux..process..get..$u7b$$u7b$closure$u7d$$u7d$$GT$$GT$$GT$$GT$17h98e07de89979f97cE
  [ 4291e]  _ZN4core3ptr3544drop_in_place$LT$futures_util..future..try_future..MapOk$LT$futures_util..future..future..Then$LT$futures_util..future..lazy..Lazy$LT$heim_process..sys..linux..process..current..$u7b$$u7b$closure$u7d$$u7d$$GT$$C$futures_util..future..try_future..MapOk$LT$futures_util..future..try_future..AndThen$LT$futures_util..future..try_future..AndThen$LT$futures_util..future..try_future..MapErr$LT$futures_util..future..future..Map$LT$futures_channel..oneshot..Receiver$LT$core..result..Result$LT$alloc..string..String$C$std..io..error..Error$GT$$GT$$C$heim_runtime..shims..polyfill..pool..FuturePool..spawn$LT$heim_runtime..shims..polyfill..fs..read_to_string$LT$alloc..string..String$GT$..$u7b$$u7b$closure$u7d$$u7d$$C$core..result..Result$LT$alloc..string..String$C$std..io..error..Error$GT$$GT$..$u7b$$u7b$closure$u7d$$u7d$$GT$$C$heim_process..sys..linux..process..procfs..stat..stat..$u7b$$u7b$closure$u7d$$u7d$$GT$$C$futures_util..future..ready..Ready$LT$core..result..Result$LT$heim_process..sys..linux..process..procfs..stat..Stat$C$heim_process..errors..ProcessError$GT$$GT$$C$heim_process..sys..linux..process..procfs..stat..stat..$u7b$$u7b$closure$u7d$$u7d$$GT$$C$futures_util..future..try_future..MapOk$LT$futures_util..future..try_future..MapErr$LT$futures_util..future..try_future..AndThen$LT$futures_util..future..try_future..MapErr$LT$futures_util..future..future..Map$LT$futures_channel..oneshot..Receiver$LT$core..result..Result$LT$alloc..string..String$C$std..io..error..Error$GT$$GT$$C$heim_runtime..shims..polyfill..pool..FuturePool..spawn$LT$heim_runtime..shims..polyfill..fs..read_to_string$LT$$RF$str$GT$..$u7b$$u7b$closure$u7d$$u7d$$C$core..result..Result$LT$alloc..string..String$C$std..io..error..Error$GT$$GT$..$u7b$$u7b$closure$u7d$$u7d$$GT$$C$$LT$std..io..error..Error$u20$as$u20$core..convert..Into$LT$heim_common..errors..Error$GT$$GT$..into$GT$$C$futures_util..future..ready..Ready$LT$core..result..Result$LT$uom..si..Quantity$LT$dyn$u20$uom..si..Dimension$u2b$Th$u20$$u3d$$u20$typenum..int..Z0$u2b$Kind$u20$$u3d$$u20$dyn$u20$uom..Kind$u2b$L$u20$$u3d$$u20$typenum..int..Z0$u2b$J$u20$$u3d$$u20$typenum..int..Z0$u2b$T$u20$$u3d$$u20$typenum..int..PInt$LT$typenum..uint..UInt$LT$typenum..uint..UTerm$C$typenum..bit..B1$GT$$GT$$u2b$N$u20$$u3d$$u20$typenum..int..Z0$u2b$I$u20$$u3d$$u20$typenum..int..Z0$u2b$M$u20$$u3d$$u20$typenum..int..Z0$C$dyn$u20$uom..si..Units$LT$f64$GT$$u2b$amount_of_substance$u20$$u3d$$u20$uom..si..amount_of_substance..mole$u2b$mass$u20$$u3d$$u20$uom..si..mass..kilogram$u2b$thermodynamic_temperature$u20$$u3d$$u20$uom..si..thermodynamic_temperature..kelvin$u2b$electric_current$u20$$u3d$$u20$uom..si..electric_current..ampere$u2b$luminous_intensity$u20$$u3d$$u20$uom..si..luminous_intensity..candela$u2b$length$u20$$u3d$$u20$uom..si..length..meter$u2b$time$u20$$u3d$$u20$uom..si..time..second$C$f64$GT$$C$heim_common..errors..Error$GT$$GT$$C$heim_host..sys..linux..boot_time..boot_time..$u7b$$u7b$closure$u7d$$u7d$$GT$$C$$LT$heim_common..errors..Error$u20$as$u20$core..convert..Into$LT$heim_process..errors..ProcessError$GT$$GT$..into$GT$$C$heim_process..sys..linux..process..procfs..stat..stat..$u7b$$u7b$closure$u7d$$u7d$..$u7b$$u7b$closure$u7d$$u7d$$GT$$C$heim_process..sys..linux..process..procfs..stat..stat..$u7b$$u7b$closure$u7d$$u7d$$GT$$C$heim_process..sys..linux..process..get..$u7b$$u7b$closure$u7d$$u7d$$GT$$C$heim_process..sys..linux..process..get$GT$$C$$LT$heim_process..sys..linux..process..Process$u20$as$u20$core..convert..Into$LT$heim_process..process..Process$GT$$GT$..into$GT$$GT$17h0ae0136220ef4e6cE

Another test

I tried compiling tokio-rs/mini-redis with toolchain between 1.45.0 to 1.53.0.

I got the follow table:

Rust Toolchain (x86_64-unknown-linux-gnu)	mini-redis-cli (bytes)	mini-redis-server (bytes)
1.45.0	5_773_944	6_130_144
1.46.0	5_745_464	6_078_856	Smallest
1.47.0	6_351_224	6_711_960
1.48.0	6_365_384	6_711_368
1.49.0	6_358_304	6_709_568
1.50.0	6_444_968	6_800_512
1.51.0	6_605_840	6_985_976	Biggest
1.52.0	6_544_608	6_909_416
1.53.0	6_420_752	6_791_440

From the above table, we could got the follow conclusions:

• Binary size is significant increased from 1.46.0 to 1.47.0.
• Binary has the biggest size at 1.51.0.
• Binary size at 1.53.0 is still much bigger than 1.46.0.

Related Issues

• rust-lang/rust Issue-75804 "hello world" binary size increase in each release
• rust-lang/rust Issue-82748: : Arm thumbv6m binary size increase with dead code change (or from 1.50 to 1.51)
• rust-lang/rust Issue-83925: no_std: binary size blowup using Result::unwrap since 1.49.0

[jyn514]

See also #86431

[inquisitivecrystal]

@rustbot label +I-heavy

[bjorn3]

This seems to be the result of #79968 which landed in 1.51. It changes the symbol names of drop_in_place to include which type is actually being dropped. The v0 symbol mangling scheme which we hope to adopt in the near future does the same thing, but also includes generic parameters for all other functions, resulting in even longer symbol names.

[apiraino]

Assigning priority as discussed in the Zulip thread of the Prioritization Working Group.

@rustbot label -I-prioritize +P-medium