[INFO] fetching crate extract-frontmatter 2.1.0...
[INFO] testing extract-frontmatter-2.1.0 against 1.59.0 for beta-1.60-1
[INFO] extracting crate extract-frontmatter 2.1.0 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate extract-frontmatter 2.1.0 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 extract-frontmatter 2.1.0
[INFO] finished tweaking crates.io crate extract-frontmatter 2.1.0
[INFO] tweaked toml for crates.io crate extract-frontmatter 2.1.0 written to /workspace/builds/worker-0/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-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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] 7bc395783aed82f53570a3b4599b1f251612123a704a33931426282b777274a1
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "7bc395783aed82f53570a3b4599b1f251612123a704a33931426282b777274a1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7bc395783aed82f53570a3b4599b1f251612123a704a33931426282b777274a1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7bc395783aed82f53570a3b4599b1f251612123a704a33931426282b777274a1", kill_on_drop: false }`
[INFO] [stdout] 7bc395783aed82f53570a3b4599b1f251612123a704a33931426282b777274a1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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] 97c033421a656b4fc3a3231cfa72970257da6b73872c4680cabafd1f8f25d92b
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "97c033421a656b4fc3a3231cfa72970257da6b73872c4680cabafd1f8f25d92b", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling extract-frontmatter v2.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.84s
[INFO] running `Command { std: "docker" "inspect" "97c033421a656b4fc3a3231cfa72970257da6b73872c4680cabafd1f8f25d92b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "97c033421a656b4fc3a3231cfa72970257da6b73872c4680cabafd1f8f25d92b", kill_on_drop: false }`
[INFO] [stdout] 97c033421a656b4fc3a3231cfa72970257da6b73872c4680cabafd1f8f25d92b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] cdcb68fbc0e115330ec1c8265b9ce96ca4194c31fe668581415db7189df6cb96
[INFO] running `Command { std: "docker" "start" "-a" "cdcb68fbc0e115330ec1c8265b9ce96ca4194c31fe668581415db7189df6cb96", kill_on_drop: false }`
[INFO] [stderr]    Compiling extract-frontmatter v2.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.06s
[INFO] running `Command { std: "docker" "inspect" "cdcb68fbc0e115330ec1c8265b9ce96ca4194c31fe668581415db7189df6cb96", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cdcb68fbc0e115330ec1c8265b9ce96ca4194c31fe668581415db7189df6cb96", kill_on_drop: false }`
[INFO] [stdout] cdcb68fbc0e115330ec1c8265b9ce96ca4194c31fe668581415db7189df6cb96
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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] b0e6ce4fb4248c9ac885560be473502cd910509595c0d14f2db650ca6e5c9ce8
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "b0e6ce4fb4248c9ac885560be473502cd910509595c0d14f2db650ca6e5c9ce8", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/extract_frontmatter-d5bce621cc749e8d)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stderr]      Running tests/extractor.rs (/opt/rustwide/target/debug/deps/extractor-a4643f5881aad093)
[INFO] [stdout] test modifier::tests::ordering ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 14 tests
[INFO] [stdout] test remove_all ... ok
[INFO] [stdout] test remove_by_line_count ... ok
[INFO] [stdout] test remove_by_non_existent_terminator ... ok
[INFO] [stdout] test select_by_terminator ... ok
[INFO] [stdout] test split_by_all ... ok
[INFO] [stdout] test split_by_prefix ... ok
[INFO] [stdout] test split_by_line_count ... ok
[INFO] [stdout] test remove_by_prefix ... ok
[INFO] [stdout] test remove_by_line_count_too_many ... ok
[INFO] [stdout] test remove_by_terminator ... ok
[INFO] [stdout] test split_by_terminator ... ok
[INFO] [stdout] test select_by_line_count ... ok
[INFO] [stdout] test select_all ... ok
[INFO] [stdout] test select_by_prefix ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 14 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test discard_first_and_last_lines ... ok
[INFO] [stderr]      Running tests/modifier.rs (/opt/rustwide/target/debug/deps/modifier-04df1b09bf944dd4)
[INFO] [stdout] test strip_prefix_and_whitespace ... ok
[INFO] [stderr]    Doc-tests extract-frontmatter
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test src/lib.rs - (line 105) ... ok
[INFO] [stdout] test src/lib.rs - (line 75) ... ok
[INFO] [stdout] test src/lib.rs - (line 47) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 1.20s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "b0e6ce4fb4248c9ac885560be473502cd910509595c0d14f2db650ca6e5c9ce8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b0e6ce4fb4248c9ac885560be473502cd910509595c0d14f2db650ca6e5c9ce8", kill_on_drop: false }`
[INFO] [stdout] b0e6ce4fb4248c9ac885560be473502cd910509595c0d14f2db650ca6e5c9ce8