[INFO] fetching crate traversal 0.1.2...
[INFO] testing traversal-0.1.2 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate traversal 0.1.2 into /workspace/builds/worker-37/source
[INFO] validating manifest of crates.io crate traversal 0.1.2 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 traversal 0.1.2
[INFO] finished tweaking crates.io crate traversal 0.1.2
[INFO] tweaked toml for crates.io crate traversal 0.1.2 written to /workspace/builds/worker-37/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] [stderr]     Blocking waiting for file lock on package cache
[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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-37/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-37/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] d4d79381562c92f915ac496b310e531818560ac5c8bb9bf706daaa3899e7d071
[INFO] running `Command { std: "docker" "start" "-a" "d4d79381562c92f915ac496b310e531818560ac5c8bb9bf706daaa3899e7d071", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d4d79381562c92f915ac496b310e531818560ac5c8bb9bf706daaa3899e7d071", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d4d79381562c92f915ac496b310e531818560ac5c8bb9bf706daaa3899e7d071", kill_on_drop: false }`
[INFO] [stdout] d4d79381562c92f915ac496b310e531818560ac5c8bb9bf706daaa3899e7d071
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-37/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-37/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] 5701a403d27e00574b05e0304a252ef341eb281769c76b13f67952fcf0257eea
[INFO] running `Command { std: "docker" "start" "-a" "5701a403d27e00574b05e0304a252ef341eb281769c76b13f67952fcf0257eea", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling traversal v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.40s
[INFO] running `Command { std: "docker" "inspect" "5701a403d27e00574b05e0304a252ef341eb281769c76b13f67952fcf0257eea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5701a403d27e00574b05e0304a252ef341eb281769c76b13f67952fcf0257eea", kill_on_drop: false }`
[INFO] [stdout] 5701a403d27e00574b05e0304a252ef341eb281769c76b13f67952fcf0257eea
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-37/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-37/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] 93605708a8de74458f1c7946e9b76e572e2a4eaf47a4385928c221280f525f92
[INFO] running `Command { std: "docker" "start" "-a" "93605708a8de74458f1c7946e9b76e572e2a4eaf47a4385928c221280f525f92", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling traversal v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.41s
[INFO] running `Command { std: "docker" "inspect" "93605708a8de74458f1c7946e9b76e572e2a4eaf47a4385928c221280f525f92", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "93605708a8de74458f1c7946e9b76e572e2a4eaf47a4385928c221280f525f92", kill_on_drop: false }`
[INFO] [stdout] 93605708a8de74458f1c7946e9b76e572e2a4eaf47a4385928c221280f525f92
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-37/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-37/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] 4ed852a2569ce0a383455f11ba174554d16a1bb98c66b8bd0d7895aaec98ec0a
[INFO] running `Command { std: "docker" "start" "-a" "4ed852a2569ce0a383455f11ba174554d16a1bb98c66b8bd0d7895aaec98ec0a", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/traversal-d00b7667ceaf3f67)
[INFO] [stdout] 
[INFO] [stdout] running 14 tests
[INFO] [stdout] test dft_longest_paths::tests::dft_longest_paths ... ok
[INFO] [stdout] test dft_pre_rev::tests::dft_pre ... ok
[INFO] [stdout] test dft_post_rev::tests::dft_post_rev ... ok
[INFO] [stdout] test bft::tests::bft ... ok
[INFO] [stdout] test dft_paths::tests::dft_paths ... ok
[INFO] [stdout] test dft_pre::tests::dft_pre ... ok
[INFO] [stdout] test dft_pre::tests::dft_pre_no_size ... ok
[INFO] [stdout] test dft_cycles::tests::dft_cycles ... ok
[INFO] [stdout] test dft_pre_rev::tests::dft_pre_rev ... ok
[INFO] [stdout] test dft_post_rev::tests::dft_post ... ok
[INFO] [stdout] test tests::lib_example ... ok
[INFO] [stdout] test dft_post::tests::dft_post ... ok
[INFO] [stdout] test tests::lib_example_cycles ... ok
[INFO] [stdout] test tests::lib_example_paths ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 14 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.03s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests traversal
[INFO] [stdout] 
[INFO] [stdout] running 16 tests
[INFO] [stdout] test src/dft_post.rs - dft_post::DftPost (line 19) ... ok
[INFO] [stdout] test src/dft_paths.rs - dft_paths::DftPaths (line 21) ... ok
[INFO] [stdout] test src/lib.rs - dft_paths (line 394) ... ok
[INFO] [stdout] test src/dft_longest_paths.rs - dft_longest_paths::DftLongestPaths (line 22) ... ok
[INFO] [stdout] test src/lib.rs - bft (line 158) ... ok
[INFO] [stdout] test src/lib.rs - dft_pre (line 205) ... ok
[INFO] [stdout] test src/dft_pre_rev.rs - dft_pre_rev::DftPreRev (line 19) ... ok
[INFO] [stdout] test src/dft_post_rev.rs - dft_post_rev::DftPostRev (line 18) ... ok
[INFO] [stdout] test src/lib.rs - dft_pre_rev (line 300) ... ok
[INFO] [stdout] test src/dft_pre.rs - dft_pre::DftPre (line 18) ... ok
[INFO] [stdout] test src/lib.rs - dft_post_rev (line 347) ... ok
[INFO] [stdout] test src/dft_cycles.rs - dft_cycles::DftCycles (line 23) ... ok
[INFO] [stdout] test src/lib.rs - dft_post (line 252) ... ok
[INFO] [stdout] test src/lib.rs - dft_longest_paths (line 440) ... ok
[INFO] [stdout] test src/bft.rs - bft::Bft (line 19) ... ok
[INFO] [stdout] test src/lib.rs - dft_cycles (line 484) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 16 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 1.45s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "4ed852a2569ce0a383455f11ba174554d16a1bb98c66b8bd0d7895aaec98ec0a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4ed852a2569ce0a383455f11ba174554d16a1bb98c66b8bd0d7895aaec98ec0a", kill_on_drop: false }`
[INFO] [stdout] 4ed852a2569ce0a383455f11ba174554d16a1bb98c66b8bd0d7895aaec98ec0a