[INFO] fetching crate traversal 0.1.2...
[INFO] testing traversal-0.1.2 against 1.55.0 for beta-1.56-1
[INFO] extracting crate traversal 0.1.2 into /workspace/builds/worker-20/source
[INFO] validating manifest of crates.io crate traversal 0.1.2 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 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-20/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] 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/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] 38c65f58aea7351d87b61d4772dac123bf53481ae1abf685a6aa2921b40eb24a
[INFO] running `Command { std: "docker" "start" "-a" "38c65f58aea7351d87b61d4772dac123bf53481ae1abf685a6aa2921b40eb24a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "38c65f58aea7351d87b61d4772dac123bf53481ae1abf685a6aa2921b40eb24a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "38c65f58aea7351d87b61d4772dac123bf53481ae1abf685a6aa2921b40eb24a", kill_on_drop: false }`
[INFO] [stdout] 38c65f58aea7351d87b61d4772dac123bf53481ae1abf685a6aa2921b40eb24a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/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] 9e27d8e5f178fac60d2573f1647d57b995eb13a6f1143aff910c8c39f32e398b
[INFO] running `Command { std: "docker" "start" "-a" "9e27d8e5f178fac60d2573f1647d57b995eb13a6f1143aff910c8c39f32e398b", 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 3.80s
[INFO] running `Command { std: "docker" "inspect" "9e27d8e5f178fac60d2573f1647d57b995eb13a6f1143aff910c8c39f32e398b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9e27d8e5f178fac60d2573f1647d57b995eb13a6f1143aff910c8c39f32e398b", kill_on_drop: false }`
[INFO] [stdout] 9e27d8e5f178fac60d2573f1647d57b995eb13a6f1143aff910c8c39f32e398b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/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] 33aff461ce6615e18d3cfdc228b9087872fd388205f69ca9a052c2061784dc47
[INFO] running `Command { std: "docker" "start" "-a" "33aff461ce6615e18d3cfdc228b9087872fd388205f69ca9a052c2061784dc47", kill_on_drop: false }`
[INFO] [stderr]    Compiling traversal v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.63s
[INFO] running `Command { std: "docker" "inspect" "33aff461ce6615e18d3cfdc228b9087872fd388205f69ca9a052c2061784dc47", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "33aff461ce6615e18d3cfdc228b9087872fd388205f69ca9a052c2061784dc47", kill_on_drop: false }`
[INFO] [stdout] 33aff461ce6615e18d3cfdc228b9087872fd388205f69ca9a052c2061784dc47
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/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] 0fdb0ebef46ea7e1bb25ba4f443f274584085e87a0438f4130e564d2cc281ca2
[INFO] running `Command { std: "docker" "start" "-a" "0fdb0ebef46ea7e1bb25ba4f443f274584085e87a0438f4130e564d2cc281ca2", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.24s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/traversal-c75b2ba9209c55e4)
[INFO] [stdout] 
[INFO] [stdout] running 14 tests
[INFO] [stderr]    Doc-tests traversal
[INFO] [stdout] test bft::tests::bft ... ok
[INFO] [stdout] test dft_post_rev::tests::dft_post ... ok
[INFO] [stdout] test dft_post_rev::tests::dft_post_rev ... ok
[INFO] [stdout] test tests::lib_example_paths ... 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 ... ok
[INFO] [stdout] test tests::lib_example ... ok
[INFO] [stdout] test tests::lib_example_cycles ... ok
[INFO] [stdout] test dft_longest_paths::tests::dft_longest_paths ... ok
[INFO] [stdout] test dft_post::tests::dft_post ... ok
[INFO] [stdout] test dft_paths::tests::dft_paths ... ok
[INFO] [stdout] test dft_pre_rev::tests::dft_pre_rev ... ok
[INFO] [stdout] test dft_pre::tests::dft_pre ... 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] [stdout] 
[INFO] [stdout] running 16 tests
[INFO] [stdout] test src/lib.rs - bft (line 158) ... ok
[INFO] [stdout] test src/lib.rs - dft_pre_rev (line 300) ... ok
[INFO] [stdout] test src/lib.rs - dft_longest_paths (line 440) ... ok
[INFO] [stdout] test src/dft_post.rs - dft_post::DftPost (line 19) ... ok
[INFO] [stdout] test src/lib.rs - dft_pre (line 205) ... ok
[INFO] [stdout] test src/dft_post_rev.rs - dft_post_rev::DftPostRev (line 18) ... 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/dft_pre_rev.rs - dft_pre_rev::DftPreRev (line 19) ... 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/lib.rs - dft_post (line 252) ... 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] test src/dft_paths.rs - dft_paths::DftPaths (line 21) ... ok
[INFO] [stdout] test src/dft_cycles.rs - dft_cycles::DftCycles (line 23) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 16 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 1.91s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "0fdb0ebef46ea7e1bb25ba4f443f274584085e87a0438f4130e564d2cc281ca2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0fdb0ebef46ea7e1bb25ba4f443f274584085e87a0438f4130e564d2cc281ca2", kill_on_drop: false }`
[INFO] [stdout] 0fdb0ebef46ea7e1bb25ba4f443f274584085e87a0438f4130e564d2cc281ca2