[INFO] fetching crate mutate_once 0.1.1...
[INFO] testing mutate_once-0.1.1 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate mutate_once 0.1.1 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate mutate_once 0.1.1 on toolchain beta-2021-09-08
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate mutate_once 0.1.1
[INFO] finished tweaking crates.io crate mutate_once 0.1.1
[INFO] tweaked toml for crates.io crate mutate_once 0.1.1 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "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" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c96c06f37e46d766e6b0ceb85dca678b66c4751b41e30f75012d6a92a72a1778
[INFO] running `Command { std: "docker" "start" "-a" "c96c06f37e46d766e6b0ceb85dca678b66c4751b41e30f75012d6a92a72a1778", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c96c06f37e46d766e6b0ceb85dca678b66c4751b41e30f75012d6a92a72a1778", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c96c06f37e46d766e6b0ceb85dca678b66c4751b41e30f75012d6a92a72a1778", kill_on_drop: false }`
[INFO] [stdout] c96c06f37e46d766e6b0ceb85dca678b66c4751b41e30f75012d6a92a72a1778
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "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" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5016ca2070aac69295491c4a8abfa6b1cdd8db5cc5e896369c7d83d36a5fff35
[INFO] running `Command { std: "docker" "start" "-a" "5016ca2070aac69295491c4a8abfa6b1cdd8db5cc5e896369c7d83d36a5fff35", kill_on_drop: false }`
[INFO] [stderr]    Compiling mutate_once v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.87s
[INFO] running `Command { std: "docker" "inspect" "5016ca2070aac69295491c4a8abfa6b1cdd8db5cc5e896369c7d83d36a5fff35", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5016ca2070aac69295491c4a8abfa6b1cdd8db5cc5e896369c7d83d36a5fff35", kill_on_drop: false }`
[INFO] [stdout] 5016ca2070aac69295491c4a8abfa6b1cdd8db5cc5e896369c7d83d36a5fff35
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "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" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f455bb994e305ec8fd0e7b08e142e40c5cd31b1fb6bb9df0e67ae39bd4518932
[INFO] running `Command { std: "docker" "start" "-a" "f455bb994e305ec8fd0e7b08e142e40c5cd31b1fb6bb9df0e67ae39bd4518932", kill_on_drop: false }`
[INFO] [stderr]    Compiling mutate_once v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.53s
[INFO] running `Command { std: "docker" "inspect" "f455bb994e305ec8fd0e7b08e142e40c5cd31b1fb6bb9df0e67ae39bd4518932", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f455bb994e305ec8fd0e7b08e142e40c5cd31b1fb6bb9df0e67ae39bd4518932", kill_on_drop: false }`
[INFO] [stdout] f455bb994e305ec8fd0e7b08e142e40c5cd31b1fb6bb9df0e67ae39bd4518932
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "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" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 6e12874233ae05da3fc2293a834557631794bf857047876cefa87606552946eb
[INFO] running `Command { std: "docker" "start" "-a" "6e12874233ae05da3fc2293a834557631794bf857047876cefa87606552946eb", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stdout] running 9 tests
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/mutate_once-d305ec255f51e083)
[INFO] [stdout] test tests::into_inner ... ok
[INFO] [stdout] test tests::default ... ok
[INFO] [stdout] test tests::from ... ok
[INFO] [stdout] test tests::temporary_value ... ok
[INFO] [stdout] test tests::multiple_refs ... ok
[INFO] [stdout] test tests::repeated_muts ... ok
[INFO] [stdout] test tests::multiple_muts - should panic ... ok
[INFO] [stdout] test tests::ref_while_mut - should panic ... ok
[INFO] [stdout] test tests::mut_after_ref - should panic ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 9 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.03s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/getter.rs (/opt/rustwide/target/debug/deps/getter-39ae773025f2e466)
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests mutate_once
[INFO] [stdout] running 2 tests
[INFO] [stdout] test single ... ok
[INFO] [stdout] test collection ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test src/lib.rs - MutOnce<T>::get_mut (line 108) ... ok
[INFO] [stdout] test src/lib.rs - MutOnce<T>::get_mut (line 117) ... ok
[INFO] [stdout] test src/lib.rs - MutOnce<T>::get_ref (line 152) ... ok
[INFO] [stdout] test src/lib.rs - MutOnce (line 59) ... ok
[INFO] [stdout] test src/lib.rs - MutOnce<T>::get_ref (line 160) ... ok
[INFO] [stdout] test src/lib.rs - MutOnce<T>::get_mut (line 125) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.53s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "6e12874233ae05da3fc2293a834557631794bf857047876cefa87606552946eb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6e12874233ae05da3fc2293a834557631794bf857047876cefa87606552946eb", kill_on_drop: false }`
[INFO] [stdout] 6e12874233ae05da3fc2293a834557631794bf857047876cefa87606552946eb