[INFO] fetching crate extract-frontmatter 2.0.3...
[INFO] testing extract-frontmatter-2.0.3 against beta-2021-01-01 for beta-1.50-1
[INFO] extracting crate extract-frontmatter 2.0.3 into /workspace/builds/worker-12/source
[INFO] validating manifest of crates.io crate extract-frontmatter 2.0.3 on toolchain beta-2021-01-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate extract-frontmatter 2.0.3
[INFO] finished tweaking crates.io crate extract-frontmatter 2.0.3
[INFO] tweaked toml for crates.io crate extract-frontmatter 2.0.3 written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f5c402343891be9dc34d506af21b41c6f6ebdde28cbf182c7065008718f92e8f
[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" "f5c402343891be9dc34d506af21b41c6f6ebdde28cbf182c7065008718f92e8f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f5c402343891be9dc34d506af21b41c6f6ebdde28cbf182c7065008718f92e8f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f5c402343891be9dc34d506af21b41c6f6ebdde28cbf182c7065008718f92e8f", kill_on_drop: false }`
[INFO] [stdout] f5c402343891be9dc34d506af21b41c6f6ebdde28cbf182c7065008718f92e8f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4c9d2c1e607e4aee58dd228c99d934b455698d8c7135b6103c53d496503b5738
[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" "4c9d2c1e607e4aee58dd228c99d934b455698d8c7135b6103c53d496503b5738", kill_on_drop: false }`
[INFO] [stderr]    Compiling extract-frontmatter v2.0.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.11s
[INFO] running `Command { std: "docker" "inspect" "4c9d2c1e607e4aee58dd228c99d934b455698d8c7135b6103c53d496503b5738", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4c9d2c1e607e4aee58dd228c99d934b455698d8c7135b6103c53d496503b5738", kill_on_drop: false }`
[INFO] [stdout] 4c9d2c1e607e4aee58dd228c99d934b455698d8c7135b6103c53d496503b5738
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d7c6ca97012b8dd06f9224d6d47e77d945afc717991d876196b17da73c6d5756
[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" "d7c6ca97012b8dd06f9224d6d47e77d945afc717991d876196b17da73c6d5756", kill_on_drop: false }`
[INFO] [stderr]    Compiling quote v1.0.8
[INFO] [stderr]    Compiling syn v1.0.57
[INFO] [stderr]    Compiling version-sync v0.9.1
[INFO] [stderr]    Compiling extract-frontmatter v2.0.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 16.53s
[INFO] running `Command { std: "docker" "inspect" "d7c6ca97012b8dd06f9224d6d47e77d945afc717991d876196b17da73c6d5756", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d7c6ca97012b8dd06f9224d6d47e77d945afc717991d876196b17da73c6d5756", kill_on_drop: false }`
[INFO] [stdout] d7c6ca97012b8dd06f9224d6d47e77d945afc717991d876196b17da73c6d5756
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "test" "--frozen", 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] 0c351cfc77bc4e3284c435e05fbdfedf05c85c8f922582e0d0969540b3c72f00
[INFO] running `Command { std: "docker" "start" "-a" "0c351cfc77bc4e3284c435e05fbdfedf05c85c8f922582e0d0969540b3c72f00", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/extract_frontmatter-4e61b7069bf239e8
[INFO] [stdout] running 1 test
[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] [stderr]      Running /opt/rustwide/target/debug/deps/modifier-262d9231ccbd3f86
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/selector-e9e560f60faf7f6e
[INFO] [stdout] test discard_first_and_last_lines ... ok
[INFO] [stdout] test strip_prefix_and_whitespace ... ok
[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 4 tests
[INFO] [stdout] test select_by_line_count ... ok
[INFO] [stdout] test select_all ... ok
[INFO] [stdout] test select_by_terminator ... ok
[INFO] [stdout] test select_by_prefix ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.03s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/version-066fdfa716ee066b
[INFO] [stdout] test html_root_url ... ok
[INFO] [stderr]    Doc-tests extract-frontmatter
[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 1 test
[INFO] [stdout] test src/lib.rs - (line 39) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.65s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "0c351cfc77bc4e3284c435e05fbdfedf05c85c8f922582e0d0969540b3c72f00", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0c351cfc77bc4e3284c435e05fbdfedf05c85c8f922582e0d0969540b3c72f00", kill_on_drop: false }`
[INFO] [stdout] 0c351cfc77bc4e3284c435e05fbdfedf05c85c8f922582e0d0969540b3c72f00