[INFO] fetching crate transitive_frontier 0.1.1...
[INFO] testing transitive_frontier-0.1.1 against 1.55.0 for beta-1.56-1
[INFO] extracting crate transitive_frontier 0.1.1 into /workspace/builds/worker-118/source
[INFO] validating manifest of crates.io crate transitive_frontier 0.1.1 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 transitive_frontier 0.1.1
[INFO] finished tweaking crates.io crate transitive_frontier 0.1.1
[INFO] tweaked toml for crates.io crate transitive_frontier 0.1.1 written to /workspace/builds/worker-118/source/Cargo.toml
[INFO] crate crates.io crate transitive_frontier 0.1.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded nested v0.1.1
[INFO] [stderr]   Downloaded smallvec v1.6.0
[INFO] [stderr]   Downloaded horrorshow v0.7.0
[INFO] [stderr]   Downloaded semver-parser v0.10.0
[INFO] [stderr]   Downloaded supercow v0.1.0
[INFO] [stderr]   Downloaded guppy v0.6.2
[INFO] [stderr]   Downloaded cargo_metadata v0.12.1
[INFO] [stderr]   Downloaded target-spec v0.5.0
[INFO] [stderr]   Downloaded cfg-expr v0.5.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-118/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-118/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] 1001bd48b31f5a3a030803c066674331256e45fe8b11e88fa873e19db0a020eb
[INFO] running `Command { std: "docker" "start" "-a" "1001bd48b31f5a3a030803c066674331256e45fe8b11e88fa873e19db0a020eb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1001bd48b31f5a3a030803c066674331256e45fe8b11e88fa873e19db0a020eb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1001bd48b31f5a3a030803c066674331256e45fe8b11e88fa873e19db0a020eb", kill_on_drop: false }`
[INFO] [stdout] 1001bd48b31f5a3a030803c066674331256e45fe8b11e88fa873e19db0a020eb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-118/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-118/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] d480c440455ccca21f2974446ee0dee23f1880e0e6d6999bac155df680982b48
[INFO] running `Command { std: "docker" "start" "-a" "d480c440455ccca21f2974446ee0dee23f1880e0e6d6999bac155df680982b48", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.57
[INFO] [stderr]    Compiling version_check v0.9.2
[INFO] [stderr]    Compiling ucd-trie v0.1.3
[INFO] [stderr]    Compiling maplit v1.0.2
[INFO] [stderr]    Compiling libc v0.2.81
[INFO] [stderr]    Compiling serde_json v1.0.61
[INFO] [stderr]    Compiling itoa v0.4.7
[INFO] [stderr]    Compiling unicode-segmentation v1.7.1
[INFO] [stderr]    Compiling target-spec v0.5.0
[INFO] [stderr]    Compiling smallvec v1.6.0
[INFO] [stderr]    Compiling supercow v0.1.0
[INFO] [stderr]    Compiling nested v0.1.1
[INFO] [stderr]    Compiling pathdiff v0.2.0
[INFO] [stderr]    Compiling horrorshow v0.7.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling itertools v0.9.0
[INFO] [stderr]    Compiling indexmap v1.6.1
[INFO] [stderr]    Compiling pest v2.1.3
[INFO] [stderr]    Compiling cfg-expr v0.5.1
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling heck v0.3.2
[INFO] [stderr]    Compiling quote v1.0.8
[INFO] [stderr]    Compiling petgraph v0.5.1
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling clap v2.33.3
[INFO] [stderr]    Compiling pest_meta v2.1.3
[INFO] [stderr]    Compiling pest_generator v2.1.3
[INFO] [stderr]    Compiling serde_derive v1.0.118
[INFO] [stderr]    Compiling pest_derive v2.1.0
[INFO] [stderr]    Compiling structopt-derive v0.4.14
[INFO] [stderr]    Compiling semver-parser v0.10.0
[INFO] [stderr]    Compiling structopt v0.3.21
[INFO] [stderr]    Compiling serde v1.0.118
[INFO] [stderr]    Compiling semver v0.11.0
[INFO] [stderr]    Compiling toml v0.5.8
[INFO] [stderr]    Compiling cargo_metadata v0.12.1
[INFO] [stderr]    Compiling guppy v0.6.2
[INFO] [stderr]    Compiling transitive_frontier v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 35.68s
[INFO] running `Command { std: "docker" "inspect" "d480c440455ccca21f2974446ee0dee23f1880e0e6d6999bac155df680982b48", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d480c440455ccca21f2974446ee0dee23f1880e0e6d6999bac155df680982b48", kill_on_drop: false }`
[INFO] [stdout] d480c440455ccca21f2974446ee0dee23f1880e0e6d6999bac155df680982b48
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-118/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-118/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] 76a1fc471dbc646d151406bccd98a1c4791e52e44e7ba0d9495d78d42cb7d60c
[INFO] running `Command { std: "docker" "start" "-a" "76a1fc471dbc646d151406bccd98a1c4791e52e44e7ba0d9495d78d42cb7d60c", kill_on_drop: false }`
[INFO] [stderr]    Compiling transitive_frontier v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.31s
[INFO] running `Command { std: "docker" "inspect" "76a1fc471dbc646d151406bccd98a1c4791e52e44e7ba0d9495d78d42cb7d60c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "76a1fc471dbc646d151406bccd98a1c4791e52e44e7ba0d9495d78d42cb7d60c", kill_on_drop: false }`
[INFO] [stdout] 76a1fc471dbc646d151406bccd98a1c4791e52e44e7ba0d9495d78d42cb7d60c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-118/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-118/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] 845e146be59580395dd9991af8f4b6d4f2515097d40a41bf89581786608ada58
[INFO] running `Command { std: "docker" "start" "-a" "845e146be59580395dd9991af8f4b6d4f2515097d40a41bf89581786608ada58", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.22s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/transitive_frontier-962f17fe35452c82)
[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" "845e146be59580395dd9991af8f4b6d4f2515097d40a41bf89581786608ada58", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "845e146be59580395dd9991af8f4b6d4f2515097d40a41bf89581786608ada58", kill_on_drop: false }`
[INFO] [stdout] 845e146be59580395dd9991af8f4b6d4f2515097d40a41bf89581786608ada58