Nov 29 14:32:23.309 INFO checking yberreby/benchmarks against try#32252761328f59ccfadb1bafb8148c685bc830b3 for pr-56323
Nov 29 14:32:23.309 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56323/worker-2/try#32252761328f59ccfadb1bafb8148c685bc830b3:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-2/pr-56323/try#32252761328f59ccfadb1bafb8148c685bc830b3:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +32252761328f59ccfadb1bafb8148c685bc830b3-alt check --frozen --all --all-targets" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Nov 29 14:32:23.916 INFO [stdout] fd6c591d834df0165edb39fe1bf6df507d6feed27e56fd61149c1d5c9d3cfa0e
Nov 29 14:32:23.919 INFO running `"docker" "start" "-a" "fd6c591d834df0165edb39fe1bf6df507d6feed27e56fd61149c1d5c9d3cfa0e"`
Nov 29 14:32:25.316 INFO [stderr] usermod: no changes
Nov 29 14:32:25.396 INFO [stderr]     Checking libc v0.2.8
Nov 29 14:32:25.396 INFO [stderr]     Checking crossbeam v0.2.10
Nov 29 14:32:26.364 INFO [stderr]     Checking rand v0.3.14
Nov 29 14:32:27.820 INFO [stderr]     Checking chan v0.1.18
Nov 29 14:32:28.366 INFO [stderr]     Checking benchmarks v0.1.0 (/source)
Nov 29 14:32:29.172 INFO [stderr] warning: unused variable: `i`
Nov 29 14:32:29.172 INFO [stderr]   --> benches/bnned.rs:14:13
Nov 29 14:32:29.172 INFO [stderr]    |
Nov 29 14:32:29.172 INFO [stderr] 14 |         for i in 0..1_000_000 {
Nov 29 14:32:29.172 INFO [stderr]    |             ^ help: consider using `_i` instead
Nov 29 14:32:29.173 INFO [stderr]    |
Nov 29 14:32:29.173 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Nov 29 14:32:29.182 INFO [stderr] 
Nov 29 14:32:29.204 INFO [stderr] error[E0635]: unknown feature `str_char`
Nov 29 14:32:29.204 INFO [stderr]  --> benches/bnned.rs:2:12
Nov 29 14:32:29.204 INFO [stderr]   |
Nov 29 14:32:29.205 INFO [stderr] 2 | #![feature(str_char)]
Nov 29 14:32:29.205 INFO [stderr]   |            ^^^^^^^^
Nov 29 14:32:29.205 INFO [stderr] 
Nov 29 14:32:29.216 INFO [stderr] error: aborting due to previous error
Nov 29 14:32:29.216 INFO [stderr] 
Nov 29 14:32:29.216 INFO [stderr] For more information about this error, try `rustc --explain E0635`.
Nov 29 14:32:29.256 INFO [stderr] error: Could not compile `benchmarks`.
Nov 29 14:32:29.256 INFO [stderr] warning: build failed, waiting for other jobs to finish...
Nov 29 14:32:29.400 INFO [stderr] warning: unused variable: `stdout`
Nov 29 14:32:29.401 INFO [stderr]   --> benches/stdio.rs:24:9
Nov 29 14:32:29.401 INFO [stderr]    |
Nov 29 14:32:29.401 INFO [stderr] 24 |     let stdout = stdout.lock();
Nov 29 14:32:29.401 INFO [stderr]    |         ^^^^^^ help: consider using `_stdout` instead
Nov 29 14:32:29.402 INFO [stderr]    |
Nov 29 14:32:29.402 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Nov 29 14:32:29.402 INFO [stderr] 
Nov 29 14:32:29.416 INFO [stderr] error[E0635]: unknown feature `str_char`
Nov 29 14:32:29.417 INFO [stderr]  --> benches/char_at.rs:2:12
Nov 29 14:32:29.417 INFO [stderr]   |
Nov 29 14:32:29.417 INFO [stderr] 2 | #![feature(str_char)]
Nov 29 14:32:29.418 INFO [stderr]   |            ^^^^^^^^
Nov 29 14:32:29.418 INFO [stderr] 
Nov 29 14:32:29.444 INFO [stderr] error: aborting due to previous error
Nov 29 14:32:29.445 INFO [stderr] 
Nov 29 14:32:29.445 INFO [stderr] For more information about this error, try `rustc --explain E0635`.
Nov 29 14:32:29.452 INFO [stderr] warning: variable does not need to be mutable
Nov 29 14:32:29.453 INFO [stderr]   --> benches/stdio.rs:23:9
Nov 29 14:32:29.453 INFO [stderr]    |
Nov 29 14:32:29.453 INFO [stderr] 23 |     let mut stdout = std::io::stdout();
Nov 29 14:32:29.453 INFO [stderr]    |         ----^^^^^^
Nov 29 14:32:29.454 INFO [stderr]    |         |
Nov 29 14:32:29.454 INFO [stderr]    |         help: remove this `mut`
Nov 29 14:32:29.454 INFO [stderr]    |
Nov 29 14:32:29.455 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Nov 29 14:32:29.455 INFO [stderr] 
Nov 29 14:32:29.455 INFO [stderr] warning: variable does not need to be mutable
Nov 29 14:32:29.455 INFO [stderr]   --> benches/stdio.rs:43:9
Nov 29 14:32:29.456 INFO [stderr]    |
Nov 29 14:32:29.456 INFO [stderr] 43 |     let mut stdout = io::stdout();
Nov 29 14:32:29.456 INFO [stderr]    |         ----^^^^^^
Nov 29 14:32:29.457 INFO [stderr]    |         |
Nov 29 14:32:29.457 INFO [stderr]    |         help: remove this `mut`
Nov 29 14:32:29.468 INFO [stderr] 
Nov 29 14:32:29.468 INFO [stderr] error[E0635]: unknown feature `str_char`
Nov 29 14:32:29.469 INFO [stderr]  --> benches/stdio.rs:4:12
Nov 29 14:32:29.469 INFO [stderr]   |
Nov 29 14:32:29.469 INFO [stderr] 4 | #![feature(str_char)]
Nov 29 14:32:29.470 INFO [stderr]   |            ^^^^^^^^
Nov 29 14:32:29.470 INFO [stderr] 
Nov 29 14:32:29.489 INFO [stderr] error: Could not compile `benchmarks`.
Nov 29 14:32:29.489 INFO [stderr] warning: build failed, waiting for other jobs to finish...
Nov 29 14:32:29.560 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 29 14:32:29.561 INFO [stderr]   --> benches/stdio.rs:35:9
Nov 29 14:32:29.561 INFO [stderr]    |
Nov 29 14:32:29.561 INFO [stderr] 35 |         stdout.write(TEST_STR.as_bytes());
Nov 29 14:32:29.562 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 29 14:32:29.562 INFO [stderr]    |
Nov 29 14:32:29.562 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Nov 29 14:32:29.563 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 29 14:32:29.563 INFO [stderr] 
Nov 29 14:32:29.563 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 29 14:32:29.563 INFO [stderr]   --> benches/stdio.rs:46:9
Nov 29 14:32:29.564 INFO [stderr]    |
Nov 29 14:32:29.564 INFO [stderr] 46 |         stdout.write(TEST_STR.as_bytes());
Nov 29 14:32:29.564 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 29 14:32:29.564 INFO [stderr]    |
Nov 29 14:32:29.565 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 29 14:32:29.565 INFO [stderr] 
Nov 29 14:32:29.565 INFO [stderr] error: aborting due to previous error
Nov 29 14:32:29.565 INFO [stderr] 
Nov 29 14:32:29.566 INFO [stderr] For more information about this error, try `rustc --explain E0635`.
Nov 29 14:32:29.609 INFO [stderr] error: Could not compile `benchmarks`.
Nov 29 14:32:29.609 INFO [stderr] warning: build failed, waiting for other jobs to finish...
Nov 29 14:32:29.812 INFO [stderr] error: build failed
Nov 29 14:32:29.814 INFO [stderr] su: No module specific data is present
Nov 29 14:32:31.278 INFO running `"docker" "inspect" "fd6c591d834df0165edb39fe1bf6df507d6feed27e56fd61149c1d5c9d3cfa0e"`
Nov 29 14:32:31.636 INFO running `"docker" "rm" "-f" "fd6c591d834df0165edb39fe1bf6df507d6feed27e56fd61149c1d5c9d3cfa0e"`
Nov 29 14:32:31.979 INFO [stdout] fd6c591d834df0165edb39fe1bf6df507d6feed27e56fd61149c1d5c9d3cfa0e