[INFO] fetching crate extract-frontmatter 2.1.0...
[INFO] testing extract-frontmatter-2.1.0 against master#99e3aef02079e9c10583638520cd0c134dc3a01d for pr-85530
[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 99e3aef02079e9c10583638520cd0c134dc3a01d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "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" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6dee7b3c9484417ce9b824615f3989d078ca5984718db47594e3014dd2d709db
[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" "6dee7b3c9484417ce9b824615f3989d078ca5984718db47594e3014dd2d709db", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6dee7b3c9484417ce9b824615f3989d078ca5984718db47594e3014dd2d709db", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6dee7b3c9484417ce9b824615f3989d078ca5984718db47594e3014dd2d709db", kill_on_drop: false }`
[INFO] [stdout] 6dee7b3c9484417ce9b824615f3989d078ca5984718db47594e3014dd2d709db
[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=forbid" "-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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5c7eec07ef553142e81d750cd697c371add96d2e02410a5b2b37f2c6211bc69e
[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" "5c7eec07ef553142e81d750cd697c371add96d2e02410a5b2b37f2c6211bc69e", kill_on_drop: false }`
[INFO] [stderr]    Compiling extract-frontmatter v2.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.46s
[INFO] running `Command { std: "docker" "inspect" "5c7eec07ef553142e81d750cd697c371add96d2e02410a5b2b37f2c6211bc69e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5c7eec07ef553142e81d750cd697c371add96d2e02410a5b2b37f2c6211bc69e", kill_on_drop: false }`
[INFO] [stdout] 5c7eec07ef553142e81d750cd697c371add96d2e02410a5b2b37f2c6211bc69e
[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=forbid" "-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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 66c6c0d4b42c7a61da94ad7e0cb5e2524a66116785370a6f1586fe9e03edc01e
[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" "66c6c0d4b42c7a61da94ad7e0cb5e2524a66116785370a6f1586fe9e03edc01e", kill_on_drop: false }`
[INFO] [stderr]    Compiling extract-frontmatter v2.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.82s
[INFO] running `Command { std: "docker" "inspect" "66c6c0d4b42c7a61da94ad7e0cb5e2524a66116785370a6f1586fe9e03edc01e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "66c6c0d4b42c7a61da94ad7e0cb5e2524a66116785370a6f1586fe9e03edc01e", kill_on_drop: false }`
[INFO] [stdout] 66c6c0d4b42c7a61da94ad7e0cb5e2524a66116785370a6f1586fe9e03edc01e
[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=forbid" "-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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 103ea6b56c6a9b6278c91409b0e65e4140fed90115e78d2065ec50eea911d584
[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" "103ea6b56c6a9b6278c91409b0e65e4140fed90115e78d2065ec50eea911d584", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stdout] test modifier::tests::ordering ... ok
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/extract_frontmatter-91c01d07c35c6cb2)
[INFO] [stdout] 
[INFO] [stderr]      Running tests/extractor.rs (/opt/rustwide/target/debug/deps/extractor-3dfaa749c6f178cd)
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/modifier.rs (/opt/rustwide/target/debug/deps/modifier-f784a586f8ccc247)
[INFO] [stdout] 
[INFO] [stdout] running 14 tests
[INFO] [stdout] test remove_by_line_count_too_many ... ok
[INFO] [stdout] test select_by_line_count ... ok
[INFO] [stdout] test select_by_prefix ... ok
[INFO] [stdout] test select_by_terminator ... ok
[INFO] [stdout] test split_by_terminator ... ok
[INFO] [stdout] test split_by_prefix ... ok
[INFO] [stdout] test remove_all ... ok
[INFO] [stdout] test split_by_line_count ... ok
[INFO] [stdout] test split_by_all ... ok
[INFO] [stdout] test remove_by_line_count ... ok
[INFO] [stdout] test remove_by_non_existent_terminator ... ok
[INFO] [stdout] test remove_by_terminator ... ok
[INFO] [stdout] test remove_by_prefix ... ok
[INFO] [stdout] test select_all ... 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] [stderr]    Doc-tests extract-frontmatter
[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 3 tests
[INFO] [stdout] test src/lib.rs - (line 75) ... ok
[INFO] [stdout] test src/lib.rs - (line 105) ... 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 0.45s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "103ea6b56c6a9b6278c91409b0e65e4140fed90115e78d2065ec50eea911d584", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "103ea6b56c6a9b6278c91409b0e65e4140fed90115e78d2065ec50eea911d584", kill_on_drop: false }`
[INFO] [stdout] 103ea6b56c6a9b6278c91409b0e65e4140fed90115e78d2065ec50eea911d584