[INFO] fetching crate b2m 0.24.0...
[INFO] testing b2m-0.24.0 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate b2m 0.24.0 into /workspace/builds/worker-67/source
[INFO] validating manifest of crates.io crate b2m 0.24.0 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 b2m 0.24.0
[INFO] finished tweaking crates.io crate b2m 0.24.0
[INFO] tweaked toml for crates.io crate b2m 0.24.0 written to /workspace/builds/worker-67/source/Cargo.toml
[INFO] crate crates.io crate b2m 0.24.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-67/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-67/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] 3f78ba7ef2490f8507a83efcd5861d3e93eefeb759592fd486987efd558e4e05
[INFO] running `Command { std: "docker" "start" "-a" "3f78ba7ef2490f8507a83efcd5861d3e93eefeb759592fd486987efd558e4e05", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3f78ba7ef2490f8507a83efcd5861d3e93eefeb759592fd486987efd558e4e05", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3f78ba7ef2490f8507a83efcd5861d3e93eefeb759592fd486987efd558e4e05", kill_on_drop: false }`
[INFO] [stdout] 3f78ba7ef2490f8507a83efcd5861d3e93eefeb759592fd486987efd558e4e05
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-67/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-67/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] 3dd4f757807a42de6479b558b0f2fd3a7d4f62e45014383f9ab333ba81a38a4a
[INFO] running `Command { std: "docker" "start" "-a" "3dd4f757807a42de6479b558b0f2fd3a7d4f62e45014383f9ab333ba81a38a4a", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.81
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling serde v1.0.118
[INFO] [stderr]    Compiling anyhow v1.0.36
[INFO] [stderr]    Compiling serde_json v1.0.60
[INFO] [stderr]    Compiling strsim v0.8.0
[INFO] [stderr]    Compiling regex-syntax v0.6.21
[INFO] [stderr]    Compiling itoa v0.4.6
[INFO] [stderr]    Compiling vec_map v0.8.2
[INFO] [stderr]    Compiling ansi_term v0.11.0
[INFO] [stderr]    Compiling thread_local v1.0.1
[INFO] [stderr]    Compiling aho-corasick v0.7.15
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling clap v2.33.3
[INFO] [stderr]    Compiling regex v1.4.2
[INFO] [stderr]    Compiling b2m v0.24.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 13.58s
[INFO] running `Command { std: "docker" "inspect" "3dd4f757807a42de6479b558b0f2fd3a7d4f62e45014383f9ab333ba81a38a4a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3dd4f757807a42de6479b558b0f2fd3a7d4f62e45014383f9ab333ba81a38a4a", kill_on_drop: false }`
[INFO] [stdout] 3dd4f757807a42de6479b558b0f2fd3a7d4f62e45014383f9ab333ba81a38a4a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-67/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-67/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] 8a44686b82693a6f347fc303ecc3b4b49d75d9d443ab66322b0eb00dd46bc6d9
[INFO] running `Command { std: "docker" "start" "-a" "8a44686b82693a6f347fc303ecc3b4b49d75d9d443ab66322b0eb00dd46bc6d9", kill_on_drop: false }`
[INFO] [stderr]    Compiling b2m v0.24.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.89s
[INFO] running `Command { std: "docker" "inspect" "8a44686b82693a6f347fc303ecc3b4b49d75d9d443ab66322b0eb00dd46bc6d9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8a44686b82693a6f347fc303ecc3b4b49d75d9d443ab66322b0eb00dd46bc6d9", kill_on_drop: false }`
[INFO] [stdout] 8a44686b82693a6f347fc303ecc3b4b49d75d9d443ab66322b0eb00dd46bc6d9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-67/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-67/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] 061b9d5e1debf3fc60293c793137d1c2d58e647f4fb9147f284429692c8b2d8f
[INFO] running `Command { std: "docker" "start" "-a" "061b9d5e1debf3fc60293c793137d1c2d58e647f4fb9147f284429692c8b2d8f", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.67s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/b2m-9d079a144e4c44dd)
[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; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/b2m-c6fd7338d0430960)
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests b2m
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[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; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "061b9d5e1debf3fc60293c793137d1c2d58e647f4fb9147f284429692c8b2d8f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "061b9d5e1debf3fc60293c793137d1c2d58e647f4fb9147f284429692c8b2d8f", kill_on_drop: false }`
[INFO] [stdout] 061b9d5e1debf3fc60293c793137d1c2d58e647f4fb9147f284429692c8b2d8f