[INFO] updating cached repository https://github.com/brain-lang/brainfuck
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/big/crater/work/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 1a7e6127ec581fc53cf0a1b659952d8d8a6cd30d
[INFO] testing brain-lang/brainfuck against 1.38.0 for beta-1.39-1
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbrain-lang%2Fbrainfuck" "work/builds/worker-10/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-10/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/brain-lang/brainfuck on toolchain 1.38.0
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/brain-lang/brainfuck
[INFO] finished tweaking git repo https://github.com/brain-lang/brainfuck
[INFO] tweaked toml for git repo https://github.com/brain-lang/brainfuck written to work/builds/worker-10/source/Cargo.toml
[INFO] crate git repo https://github.com/brain-lang/brainfuck already has a lockfile, it will not be regenerated
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-10/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.38.0" "build" "--frozen"`
[INFO] [stdout] 6c1a76c87059759d2b01570c203a484c80162cf907a8aa852da79e184468155f
[INFO] running `"docker" "start" "-a" "6c1a76c87059759d2b01570c203a484c80162cf907a8aa852da79e184468155f"`
[INFO] [stderr]    Compiling term_size v0.3.0
[INFO] [stderr]    Compiling atty v0.2.2
[INFO] [stderr]    Compiling colored v1.5.1
[INFO] [stderr]    Compiling clap v2.24.2
[INFO] [stderr]    Compiling brain-brainfuck v1.3.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/interpreter.rs:100:18
[INFO] [stderr]     |
[INFO] [stderr] 100 | fn fill_matching(mut program: &mut Vec<Instruction>, start: usize) -> usize {
[INFO] [stderr]     |                  ----^^^^^^^
[INFO] [stderr]     |                  |
[INFO] [stderr]     |                  help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 9.37s
[INFO] running `"docker" "inspect" "6c1a76c87059759d2b01570c203a484c80162cf907a8aa852da79e184468155f"`
[INFO] running `"docker" "rm" "-f" "6c1a76c87059759d2b01570c203a484c80162cf907a8aa852da79e184468155f"`
[INFO] [stdout] 6c1a76c87059759d2b01570c203a484c80162cf907a8aa852da79e184468155f
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-10/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.38.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 555393ba5a9af1c2e30b463f386fb56e8879a79ddc4b5228d5876fbc4177b350
[INFO] running `"docker" "start" "-a" "555393ba5a9af1c2e30b463f386fb56e8879a79ddc4b5228d5876fbc4177b350"`
[INFO] [stderr]    Compiling brain-brainfuck v1.3.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/interpreter.rs:100:18
[INFO] [stderr]     |
[INFO] [stderr] 100 | fn fill_matching(mut program: &mut Vec<Instruction>, start: usize) -> usize {
[INFO] [stderr]     |                  ----^^^^^^^
[INFO] [stderr]     |                  |
[INFO] [stderr]     |                  help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.48s
[INFO] running `"docker" "inspect" "555393ba5a9af1c2e30b463f386fb56e8879a79ddc4b5228d5876fbc4177b350"`
[INFO] running `"docker" "rm" "-f" "555393ba5a9af1c2e30b463f386fb56e8879a79ddc4b5228d5876fbc4177b350"`
[INFO] [stdout] 555393ba5a9af1c2e30b463f386fb56e8879a79ddc4b5228d5876fbc4177b350
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-10/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.38.0" "test" "--frozen"`
[INFO] [stdout] 4b8190be71a9b09770925f0bb710554a18ef37e2e888ce472cf8eabd304698cc
[INFO] running `"docker" "start" "-a" "4b8190be71a9b09770925f0bb710554a18ef37e2e888ce472cf8eabd304698cc"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/brainfuck-e6e7a31ceab68abe
[INFO] [stdout] 
[INFO] [stdout] running 28 tests
[INFO] [stdout] test debug_format::tests::from_str ... ok
[INFO] [stdout] test interpreter::tests::basic_looping ... ok
[INFO] [stdout] test interpreter::tests::basic_movements ... ok
[INFO] [stdout] test instruction::tests::display ... ok
[INFO] [stdout] test interpreter::tests::move_left_past_zero ... ok
[INFO] [stdout] test interpreter::tests::skip_first_loop ... ok
[INFO] [stdout] test interpreter::tests::wrapping ... ok
[INFO] [stdout] test optlevel::tests::from_str ... ok
[INFO] [stdout] test interpreter::tests::reading_input ... ok
[INFO] [stdout] test interpreter::tests::move_right_past_capacity ... ok
[INFO] [stdout] test interpreter::tests::nested_loops ... ok
[INFO] [stdout] test interpreter::tests::callback_behaviour ... ok
[INFO] [stdout] test interpreter::tests::hello_world ... ok
[INFO] [stdout] test precompiler::tests::skip_unrecognized ... ok
[INFO] [stdout] test precompiler::tests::optimization_levels ... ok
[INFO] [stdout] test precompiler::tests::over_max_expected_jumps ... ok
[INFO] [stdout] test precompiler::tests::mismatched_jumps1 ... ok
[INFO] [stdout] test precompiler::tests::mismatched_jumps10 ... ok
[INFO] [stdout] test precompiler::tests::mismatched_jumps3 ... ok
[INFO] [stdout] test precompiler::tests::mismatched_jumps2 ... ok
[INFO] [stdout] test precompiler::tests::mismatched_jumps11 ... ok
[INFO] [stdout] test precompiler::tests::mismatched_jumps4 ... ok
[INFO] [stdout] test precompiler::tests::mismatched_jumps6 ... ok
[INFO] [stdout] test precompiler::tests::mismatched_jumps5 ... ok
[INFO] [stdout] test interpreter::tests::mismatched_jumps ... ok
[INFO] [stdout] test precompiler::tests::mismatched_jumps7 ... ok
[INFO] [stdout] test precompiler::tests::mismatched_jumps9 ... ok
[INFO] [stdout] test precompiler::tests::mismatched_jumps8 ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 28 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/brainfuck-8f777d0e0805c9e5
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests brainfuck
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "4b8190be71a9b09770925f0bb710554a18ef37e2e888ce472cf8eabd304698cc"`
[INFO] running `"docker" "rm" "-f" "4b8190be71a9b09770925f0bb710554a18ef37e2e888ce472cf8eabd304698cc"`
[INFO] [stdout] 4b8190be71a9b09770925f0bb710554a18ef37e2e888ce472cf8eabd304698cc