[INFO] fetching crate twiddle 1.1.0...
[INFO] testing twiddle-1.1.0 against 1.55.0 for beta-1.56-1
[INFO] extracting crate twiddle 1.1.0 into /workspace/builds/worker-11/source
[INFO] validating manifest of crates.io crate twiddle 1.1.0 on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate twiddle 1.1.0
[INFO] finished tweaking crates.io crate twiddle 1.1.0
[INFO] tweaked toml for crates.io crate twiddle 1.1.0 written to /workspace/builds/worker-11/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5940b30131584b9d17eab0b00fe95f806a7a7b6febc9aa3132e978fa5fa7e715
[INFO] running `Command { std: "docker" "start" "-a" "5940b30131584b9d17eab0b00fe95f806a7a7b6febc9aa3132e978fa5fa7e715", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5940b30131584b9d17eab0b00fe95f806a7a7b6febc9aa3132e978fa5fa7e715", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5940b30131584b9d17eab0b00fe95f806a7a7b6febc9aa3132e978fa5fa7e715", kill_on_drop: false }`
[INFO] [stdout] 5940b30131584b9d17eab0b00fe95f806a7a7b6febc9aa3132e978fa5fa7e715
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b06f982499f76f354e0a7a8b3240f869c2750edc1705790c28cc7532beb9bc76
[INFO] running `Command { std: "docker" "start" "-a" "b06f982499f76f354e0a7a8b3240f869c2750edc1705790c28cc7532beb9bc76", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling twiddle v1.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.23s
[INFO] running `Command { std: "docker" "inspect" "b06f982499f76f354e0a7a8b3240f869c2750edc1705790c28cc7532beb9bc76", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b06f982499f76f354e0a7a8b3240f869c2750edc1705790c28cc7532beb9bc76", kill_on_drop: false }`
[INFO] [stdout] b06f982499f76f354e0a7a8b3240f869c2750edc1705790c28cc7532beb9bc76
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 61eb5f9227c58f5fc7ad86b83f7862f314149a1be53a643e6de68fa0358a9caa
[INFO] running `Command { std: "docker" "start" "-a" "61eb5f9227c58f5fc7ad86b83f7862f314149a1be53a643e6de68fa0358a9caa", kill_on_drop: false }`
[INFO] [stderr]    Compiling twiddle v1.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.94s
[INFO] running `Command { std: "docker" "inspect" "61eb5f9227c58f5fc7ad86b83f7862f314149a1be53a643e6de68fa0358a9caa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "61eb5f9227c58f5fc7ad86b83f7862f314149a1be53a643e6de68fa0358a9caa", kill_on_drop: false }`
[INFO] [stdout] 61eb5f9227c58f5fc7ad86b83f7862f314149a1be53a643e6de68fa0358a9caa
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "+1.55.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 29053ea07db06fa3591f48229532013fd1cfeaab3795d6ab3aa00bfe5a7dca7e
[INFO] running `Command { std: "docker" "start" "-a" "29053ea07db06fa3591f48229532013fd1cfeaab3795d6ab3aa00bfe5a7dca7e", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.10s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/twiddle-1a9dfc7ecfb4d6f8)
[INFO] [stdout] 
[INFO] [stdout] running 21 tests
[INFO] [stdout] test tests::set_true_bit ... ok
[INFO] [stdout] test tests::split ... ok
[INFO] [stdout] test tests::bits_full ... ok
[INFO] [stdout] test tests::replace_middle ... ok
[INFO] [stdout] test tests::mask_top ... ok
[INFO] [stdout] test tests::bits_bottom ... ok
[INFO] [stdout] test tests::bits_middle ... ok
[INFO] [stdout] test tests::bit ... ok
[INFO] [stdout] test tests::mask_middle ... ok
[INFO] [stdout] test tests::mask_full ... ok
[INFO] [stdout] test tests::set_false_bit ... ok
[INFO] [stdout] test tests::mask_bottom ... ok
[INFO] [stdout] test tests::bits_top ... ok
[INFO] [stdout] test tests::unset_false_bit ... ok
[INFO] [stdout] test tests::replace_top ... ok
[INFO] [stdout] test tests::replace_full ... ok
[INFO] [stdout] test tests::replace_bottom ... ok
[INFO] [stdout] test tests::unset_true_bit ... ok
[INFO] [stdout] test tests::replace_overlong ... ok
[INFO] [stderr]    Doc-tests twiddle
[INFO] [stdout] test tests::mask_reversed - should panic ... ok
[INFO] [stdout] test tests::mask_overflow - should panic ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 21 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.09s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 7 tests
[INFO] [stdout] test src/lib.rs - Twiddle::bits (line 85) ... ok
[INFO] [stdout] test src/lib.rs - Twiddle::set_bit (line 96) ... ok
[INFO] [stdout] test src/lib.rs - Twiddle::mask (line 61) ... ok
[INFO] [stdout] test src/lib.rs - (line 13) ... ok
[INFO] [stdout] test src/lib.rs - Twiddle::bit (line 72) ... ok
[INFO] [stdout] test src/lib.rs - Twiddle::replace (line 107) ... ok
[INFO] [stdout] test src/lib.rs - Twiddle::split (line 122) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 7 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 1.62s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "29053ea07db06fa3591f48229532013fd1cfeaab3795d6ab3aa00bfe5a7dca7e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "29053ea07db06fa3591f48229532013fd1cfeaab3795d6ab3aa00bfe5a7dca7e", kill_on_drop: false }`
[INFO] [stdout] 29053ea07db06fa3591f48229532013fd1cfeaab3795d6ab3aa00bfe5a7dca7e