Dec 04 06:38:23.064 INFO checking yberreby/benchmarks against master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc for pr-56481
Dec 04 06:38:23.064 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56481/worker-6/master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-6/pr-56481/master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc:/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 +c8ae2de8363be088604ffa2ccba84ff7ad7250bc-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"`
Dec 04 06:38:23.572 INFO [stdout] 74530fe3db6ac23afa0568d7013514c59d50013eb3fb1814095042e3f7b4dc5f
Dec 04 06:38:23.577 INFO running `"docker" "start" "-a" "74530fe3db6ac23afa0568d7013514c59d50013eb3fb1814095042e3f7b4dc5f"`
Dec 04 06:38:25.483 INFO [stderr] usermod: no changes
Dec 04 06:38:25.569 INFO [stderr]     Checking libc v0.2.8
Dec 04 06:38:25.569 INFO [stderr]     Checking crossbeam v0.2.10
Dec 04 06:38:26.784 INFO [stderr]     Checking rand v0.3.14
Dec 04 06:38:27.985 INFO [stderr]     Checking chan v0.1.18
Dec 04 06:38:28.606 INFO [stderr]     Checking benchmarks v0.1.0 (/source)
Dec 04 06:38:29.651 INFO [stderr] warning: unused variable: `i`
Dec 04 06:38:29.651 INFO [stderr]   --> benches/bnned.rs:14:13
Dec 04 06:38:29.652 INFO [stderr]    |
Dec 04 06:38:29.652 INFO [stderr] 14 |         for i in 0..1_000_000 {
Dec 04 06:38:29.652 INFO [stderr]    |             ^ help: consider using `_i` instead
Dec 04 06:38:29.687 INFO [stderr]    |
Dec 04 06:38:29.688 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 04 06:38:29.688 INFO [stderr] 
Dec 04 06:38:29.699 INFO [stderr] error[E0635]: unknown feature `str_char`
Dec 04 06:38:29.699 INFO [stderr]  --> benches/bnned.rs:2:12
Dec 04 06:38:29.700 INFO [stderr]   |
Dec 04 06:38:29.700 INFO [stderr] 2 | #![feature(str_char)]
Dec 04 06:38:29.700 INFO [stderr]   |            ^^^^^^^^
Dec 04 06:38:29.700 INFO [stderr] warning: unused variable: `stdout`
Dec 04 06:38:29.701 INFO [stderr]   --> benches/stdio.rs:24:9
Dec 04 06:38:29.701 INFO [stderr]    |
Dec 04 06:38:29.701 INFO [stderr] 24 |     let stdout = stdout.lock();
Dec 04 06:38:29.702 INFO [stderr]    |         ^^^^^^ help: consider using `_stdout` instead
Dec 04 06:38:29.702 INFO [stderr] 
Dec 04 06:38:29.715 INFO [stderr] error: aborting due to previous error
Dec 04 06:38:29.731 INFO [stderr] 
Dec 04 06:38:29.731 INFO [stderr] For more information about this error, try `rustc --explain E0635`.
Dec 04 06:38:29.739 INFO [stderr]    |
Dec 04 06:38:29.739 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 04 06:38:29.739 INFO [stderr] 
Dec 04 06:38:29.767 INFO [stderr] warning: variable does not need to be mutable
Dec 04 06:38:29.767 INFO [stderr]   --> benches/stdio.rs:23:9
Dec 04 06:38:29.767 INFO [stderr]    |
Dec 04 06:38:29.767 INFO [stderr] 23 |     let mut stdout = std::io::stdout();
Dec 04 06:38:29.767 INFO [stderr]    |         ----^^^^^^
Dec 04 06:38:29.767 INFO [stderr]    |         |
Dec 04 06:38:29.767 INFO [stderr]    |         help: remove this `mut`
Dec 04 06:38:29.767 INFO [stderr]    |
Dec 04 06:38:29.767 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 04 06:38:29.767 INFO [stderr] 
Dec 04 06:38:29.767 INFO [stderr] warning: variable does not need to be mutable
Dec 04 06:38:29.767 INFO [stderr]   --> benches/stdio.rs:43:9
Dec 04 06:38:29.767 INFO [stderr]    |
Dec 04 06:38:29.767 INFO [stderr] 43 |     let mut stdout = io::stdout();
Dec 04 06:38:29.767 INFO [stderr]    |         ----^^^^^^
Dec 04 06:38:29.767 INFO [stderr]    |         |
Dec 04 06:38:29.767 INFO [stderr]    |         help: remove this `mut`
Dec 04 06:38:29.767 INFO [stderr] 
Dec 04 06:38:29.767 INFO [stderr] error[E0635]: unknown feature `str_char`
Dec 04 06:38:29.767 INFO [stderr]  --> benches/stdio.rs:4:12
Dec 04 06:38:29.767 INFO [stderr]   |
Dec 04 06:38:29.767 INFO [stderr] 4 | #![feature(str_char)]
Dec 04 06:38:29.767 INFO [stderr]   |            ^^^^^^^^
Dec 04 06:38:29.767 INFO [stderr] 
Dec 04 06:38:29.788 INFO [stderr] error: Could not compile `benchmarks`.
Dec 04 06:38:29.788 INFO [stderr] warning: build failed, waiting for other jobs to finish...
Dec 04 06:38:29.891 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 04 06:38:29.891 INFO [stderr]   --> benches/stdio.rs:35:9
Dec 04 06:38:29.891 INFO [stderr]    |
Dec 04 06:38:29.891 INFO [stderr] 35 |         stdout.write(TEST_STR.as_bytes());
Dec 04 06:38:29.891 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 06:38:29.891 INFO [stderr]    |
Dec 04 06:38:29.891 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 04 06:38:29.891 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 04 06:38:29.891 INFO [stderr] 
Dec 04 06:38:29.892 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 04 06:38:29.892 INFO [stderr]   --> benches/stdio.rs:46:9
Dec 04 06:38:29.892 INFO [stderr]    |
Dec 04 06:38:29.893 INFO [stderr] 46 |         stdout.write(TEST_STR.as_bytes());
Dec 04 06:38:29.893 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 06:38:29.893 INFO [stderr]    |
Dec 04 06:38:29.893 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 04 06:38:29.894 INFO [stderr] 
Dec 04 06:38:29.896 INFO [stderr] error: aborting due to previous error
Dec 04 06:38:29.896 INFO [stderr] 
Dec 04 06:38:29.897 INFO [stderr] For more information about this error, try `rustc --explain E0635`.
Dec 04 06:38:29.924 INFO [stderr] error: Could not compile `benchmarks`.
Dec 04 06:38:29.925 INFO [stderr] warning: build failed, waiting for other jobs to finish...
Dec 04 06:38:30.283 INFO [stderr] error[E0433]: failed to resolve: could not find `heap` in `alloc`
Dec 04 06:38:30.283 INFO [stderr]   --> benches/alloc.rs:11:14
Dec 04 06:38:30.283 INFO [stderr]    |
Dec 04 06:38:30.283 INFO [stderr] 11 |       alloc::heap::allocate(4, 64)
Dec 04 06:38:30.283 INFO [stderr]    |              ^^^^ could not find `heap` in `alloc`
Dec 04 06:38:30.283 INFO [stderr] 
Dec 04 06:38:30.319 INFO [stderr] error[E0635]: unknown feature `str_char`
Dec 04 06:38:30.319 INFO [stderr]  --> benches/char_at.rs:2:12
Dec 04 06:38:30.319 INFO [stderr]   |
Dec 04 06:38:30.319 INFO [stderr] 2 | #![feature(str_char)]
Dec 04 06:38:30.320 INFO [stderr]   |            ^^^^^^^^
Dec 04 06:38:30.320 INFO [stderr] 
Dec 04 06:38:30.323 INFO [stderr] error: aborting due to previous error
Dec 04 06:38:30.323 INFO [stderr] 
Dec 04 06:38:30.323 INFO [stderr] For more information about this error, try `rustc --explain E0635`.
Dec 04 06:38:30.343 INFO [stderr] error: Could not compile `benchmarks`.
Dec 04 06:38:30.343 INFO [stderr] warning: build failed, waiting for other jobs to finish...
Dec 04 06:38:30.346 INFO [stderr] error: aborting due to previous error
Dec 04 06:38:30.346 INFO [stderr] 
Dec 04 06:38:30.346 INFO [stderr] For more information about this error, try `rustc --explain E0433`.
Dec 04 06:38:30.364 INFO [stderr] error: Could not compile `benchmarks`.
Dec 04 06:38:30.364 INFO [stderr] 
Dec 04 06:38:30.364 INFO [stderr] To learn more, run the command again with --verbose.
Dec 04 06:38:30.366 INFO [stderr] su: No module specific data is present
Dec 04 06:38:31.631 INFO running `"docker" "inspect" "74530fe3db6ac23afa0568d7013514c59d50013eb3fb1814095042e3f7b4dc5f"`
Dec 04 06:38:31.999 INFO running `"docker" "rm" "-f" "74530fe3db6ac23afa0568d7013514c59d50013eb3fb1814095042e3f7b4dc5f"`
Dec 04 06:38:32.227 INFO [stdout] 74530fe3db6ac23afa0568d7013514c59d50013eb3fb1814095042e3f7b4dc5f