[INFO] fetching crate frontmatter 0.4.0...
[INFO] testing frontmatter-0.4.0 against 1.59.0 for beta-1.60-1
[INFO] extracting crate frontmatter 0.4.0 into /workspace/builds/worker-115/source
[INFO] validating manifest of crates.io crate frontmatter 0.4.0 on toolchain 1.59.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate frontmatter 0.4.0
[INFO] finished tweaking crates.io crate frontmatter 0.4.0
[INFO] tweaked toml for crates.io crate frontmatter 0.4.0 written to /workspace/builds/worker-115/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-115/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-115/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a47b7f0879f1a61c4353782d44a99bb9dc70ecb293b7b405721120b87a98eca9
[INFO] running `Command { std: "docker" "start" "-a" "a47b7f0879f1a61c4353782d44a99bb9dc70ecb293b7b405721120b87a98eca9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a47b7f0879f1a61c4353782d44a99bb9dc70ecb293b7b405721120b87a98eca9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a47b7f0879f1a61c4353782d44a99bb9dc70ecb293b7b405721120b87a98eca9", kill_on_drop: false }`
[INFO] [stdout] a47b7f0879f1a61c4353782d44a99bb9dc70ecb293b7b405721120b87a98eca9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-115/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-115/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6aac4154ee05f9c458a76c2ce32d7619b3c63e64f6b53585467cd364d67df64f
[INFO] running `Command { std: "docker" "start" "-a" "6aac4154ee05f9c458a76c2ce32d7619b3c63e64f6b53585467cd364d67df64f", kill_on_drop: false }`
[INFO] [stderr]    Compiling linked-hash-map v0.5.4
[INFO] [stderr]    Compiling yaml-rust v0.4.5
[INFO] [stderr]    Compiling frontmatter v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.66s
[INFO] running `Command { std: "docker" "inspect" "6aac4154ee05f9c458a76c2ce32d7619b3c63e64f6b53585467cd364d67df64f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6aac4154ee05f9c458a76c2ce32d7619b3c63e64f6b53585467cd364d67df64f", kill_on_drop: false }`
[INFO] [stdout] 6aac4154ee05f9c458a76c2ce32d7619b3c63e64f6b53585467cd364d67df64f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-115/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-115/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d1f763db3c76df0c953d34e7747f1c641cd460ebafffa65894b3419d1fa311fb
[INFO] running `Command { std: "docker" "start" "-a" "d1f763db3c76df0c953d34e7747f1c641cd460ebafffa65894b3419d1fa311fb", kill_on_drop: false }`
[INFO] [stderr]    Compiling frontmatter v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.05s
[INFO] running `Command { std: "docker" "inspect" "d1f763db3c76df0c953d34e7747f1c641cd460ebafffa65894b3419d1fa311fb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d1f763db3c76df0c953d34e7747f1c641cd460ebafffa65894b3419d1fa311fb", kill_on_drop: false }`
[INFO] [stdout] d1f763db3c76df0c953d34e7747f1c641cd460ebafffa65894b3419d1fa311fb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-115/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-115/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 05c8f2919b0a1489568e21c6180174aff64471a82c91da286846c66bee20ea11
[INFO] running `Command { std: "docker" "start" "-a" "05c8f2919b0a1489568e21c6180174aff64471a82c91da286846c66bee20ea11", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stdout] running 7 tests
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/frontmatter-b082963d63300e8f)
[INFO] [stdout] test test_none_find_content ... ok
[INFO] [stdout] test test_none ... ok
[INFO] [stdout] test test_empty_find_content ... ok
[INFO] [stdout] test test_tests ... ok
[INFO] [stdout] test test_valid ... ok
[INFO] [stdout] test test_valid_find_content ... ok
[INFO] [stderr]    Doc-tests frontmatter
[INFO] [stdout] test test_empty ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 7 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" "05c8f2919b0a1489568e21c6180174aff64471a82c91da286846c66bee20ea11", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "05c8f2919b0a1489568e21c6180174aff64471a82c91da286846c66bee20ea11", kill_on_drop: false }`
[INFO] [stdout] 05c8f2919b0a1489568e21c6180174aff64471a82c91da286846c66bee20ea11