[INFO] fetching crate brain-brainfuck 1.3.0...
[INFO] testing brain-brainfuck-1.3.0 against try#03a1ea71b075ab964b5278bc6e74cd6c52c36ee0 for pr-74409
[INFO] extracting crate brain-brainfuck 1.3.0 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate brain-brainfuck 1.3.0 on toolchain 03a1ea71b075ab964b5278bc6e74cd6c52c36ee0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate brain-brainfuck 1.3.0
[INFO] finished tweaking crates.io crate brain-brainfuck 1.3.0
[INFO] tweaked toml for crates.io crate brain-brainfuck 1.3.0 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-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@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] abba1836386db8fc96b7834972ccaa602206ce18265aa4ce796fd6de18235147
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "abba1836386db8fc96b7834972ccaa602206ce18265aa4ce796fd6de18235147", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "abba1836386db8fc96b7834972ccaa602206ce18265aa4ce796fd6de18235147", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "abba1836386db8fc96b7834972ccaa602206ce18265aa4ce796fd6de18235147", kill_on_drop: false }`
[INFO] [stdout] abba1836386db8fc96b7834972ccaa602206ce18265aa4ce796fd6de18235147
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-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@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 54271935dc69e3f6a2abbe6066064bcfa3aad68bf768b395741ac24a4b93646d
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "54271935dc69e3f6a2abbe6066064bcfa3aad68bf768b395741ac24a4b93646d", kill_on_drop: false }`
[INFO] [stderr]    Compiling colored v1.9.3
[INFO] [stderr]    Compiling brain-brainfuck v1.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/interpreter.rs:100:18
[INFO] [stdout]     |
[INFO] [stdout] 100 | fn fill_matching(mut program: &mut Vec<Instruction>, start: usize) -> usize {
[INFO] [stdout]     |                  ----^^^^^^^
[INFO] [stdout]     |                  |
[INFO] [stdout]     |                  help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.51s
[INFO] running `Command { std: "docker" "inspect" "54271935dc69e3f6a2abbe6066064bcfa3aad68bf768b395741ac24a4b93646d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "54271935dc69e3f6a2abbe6066064bcfa3aad68bf768b395741ac24a4b93646d", kill_on_drop: false }`
[INFO] [stdout] 54271935dc69e3f6a2abbe6066064bcfa3aad68bf768b395741ac24a4b93646d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-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@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] b0af83bc368c6ae1687e7d0b5914414b6db09fb43b958aba19af4e963c7abc0c
[INFO] running `Command { std: "docker" "start" "-a" "b0af83bc368c6ae1687e7d0b5914414b6db09fb43b958aba19af4e963c7abc0c", kill_on_drop: false }`
[INFO] [stderr]    Compiling brain-brainfuck v1.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/interpreter.rs:100:18
[INFO] [stdout]     |
[INFO] [stdout] 100 | fn fill_matching(mut program: &mut Vec<Instruction>, start: usize) -> usize {
[INFO] [stdout]     |                  ----^^^^^^^
[INFO] [stdout]     |                  |
[INFO] [stdout]     |                  help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/interpreter.rs:100:18
[INFO] [stdout]     |
[INFO] [stdout] 100 | fn fill_matching(mut program: &mut Vec<Instruction>, start: usize) -> usize {
[INFO] [stdout]     |                  ----^^^^^^^
[INFO] [stdout]     |                  |
[INFO] [stdout]     |                  help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.40s
[INFO] running `Command { std: "docker" "inspect" "b0af83bc368c6ae1687e7d0b5914414b6db09fb43b958aba19af4e963c7abc0c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b0af83bc368c6ae1687e7d0b5914414b6db09fb43b958aba19af4e963c7abc0c", kill_on_drop: false }`
[INFO] [stdout] b0af83bc368c6ae1687e7d0b5914414b6db09fb43b958aba19af4e963c7abc0c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-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@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 43311839e677470f292dd249b47d2838e5bc0044e1341cf73716cbd5d9c67da6
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "43311839e677470f292dd249b47d2838e5bc0044e1341cf73716cbd5d9c67da6", kill_on_drop: false }`
[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] warning: 1 warning emitted
[INFO] [stderr] 
[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] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/brainfuck-dbdf4066ad8ac870
[INFO] [stdout] 
[INFO] [stdout] running 28 tests
[INFO] [stdout] test debug_format::tests::from_str ... ok
[INFO] [stdout] test instruction::tests::display ... ok
[INFO] [stdout] test interpreter::tests::callback_behaviour ... ok
[INFO] [stdout] test interpreter::tests::move_right_past_capacity ... ok
[INFO] [stdout] test interpreter::tests::hello_world ... ok
[INFO] [stdout] test interpreter::tests::wrapping ... ok
[INFO] [stdout] test optlevel::tests::from_str ... ok
[INFO] [stdout] test interpreter::tests::skip_first_loop ... ok
[INFO] [stdout] test interpreter::tests::reading_input ... ok
[INFO] [stdout] test interpreter::tests::nested_loops ... ok
[INFO] [stdout] test interpreter::tests::move_left_past_zero ... ok
[INFO] [stdout] test interpreter::tests::basic_looping ... ok
[INFO] [stdout] test interpreter::tests::basic_movements ... ok
[INFO] [stdout] test precompiler::tests::optimization_levels ... ok
[INFO] [stdout] test precompiler::tests::skip_unrecognized ... ok
[INFO] [stdout] test precompiler::tests::over_max_expected_jumps ... ok
[INFO] [stdout] test precompiler::tests::mismatched_jumps10 ... ok
[INFO] [stdout] test precompiler::tests::mismatched_jumps2 ... ok
[INFO] [stdout] test precompiler::tests::mismatched_jumps4 ... ok
[INFO] [stdout] test precompiler::tests::mismatched_jumps5 ... ok
[INFO] [stdout] test precompiler::tests::mismatched_jumps11 ... ok
[INFO] [stdout] test interpreter::tests::mismatched_jumps ... ok
[INFO] [stdout] test precompiler::tests::mismatched_jumps9 ... ok
[INFO] [stdout] test precompiler::tests::mismatched_jumps3 ... ok
[INFO] [stdout] test precompiler::tests::mismatched_jumps1 ... ok
[INFO] [stdout] test precompiler::tests::mismatched_jumps7 ... ok
[INFO] [stdout] test precompiler::tests::mismatched_jumps8 ... ok
[INFO] [stdout] test precompiler::tests::mismatched_jumps6 ... 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-84ed0ffd2f5b35c7
[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 `Command { std: "docker" "inspect" "43311839e677470f292dd249b47d2838e5bc0044e1341cf73716cbd5d9c67da6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "43311839e677470f292dd249b47d2838e5bc0044e1341cf73716cbd5d9c67da6", kill_on_drop: false }`
[INFO] [stdout] 43311839e677470f292dd249b47d2838e5bc0044e1341cf73716cbd5d9c67da6