[INFO] crate extract-frontmatter 1.0.2 is already in cache
[INFO] testing extract-frontmatter-1.0.2 against beta-2020-07-24 for beta-1.46-1
[INFO] extracting crate extract-frontmatter 1.0.2 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate extract-frontmatter 1.0.2 on toolchain beta-2020-07-24
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate extract-frontmatter 1.0.2
[INFO] finished tweaking crates.io crate extract-frontmatter 1.0.2
[INFO] tweaked toml for crates.io crate extract-frontmatter 1.0.2 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 37abe3a8990425c374dab71f28660e2e4f78103dbb318f2f0e4fb9a6bd0ef584
[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" "37abe3a8990425c374dab71f28660e2e4f78103dbb318f2f0e4fb9a6bd0ef584", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "37abe3a8990425c374dab71f28660e2e4f78103dbb318f2f0e4fb9a6bd0ef584", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "37abe3a8990425c374dab71f28660e2e4f78103dbb318f2f0e4fb9a6bd0ef584", kill_on_drop: false }`
[INFO] [stdout] 37abe3a8990425c374dab71f28660e2e4f78103dbb318f2f0e4fb9a6bd0ef584
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ff2b71053d637c0b9ee49b59257128d02ff0e988b703073ebd7c117fca13ff0c
[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" "ff2b71053d637c0b9ee49b59257128d02ff0e988b703073ebd7c117fca13ff0c", kill_on_drop: false }`
[INFO] [stderr]    Compiling unicode-segmentation v1.6.0
[INFO] [stderr]    Compiling extract-frontmatter v1.0.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.50s
[INFO] running `Command { std: "docker" "inspect" "ff2b71053d637c0b9ee49b59257128d02ff0e988b703073ebd7c117fca13ff0c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ff2b71053d637c0b9ee49b59257128d02ff0e988b703073ebd7c117fca13ff0c", kill_on_drop: false }`
[INFO] [stdout] ff2b71053d637c0b9ee49b59257128d02ff0e988b703073ebd7c117fca13ff0c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 759d1828c8d6842a287b57dbfa6d08ec39e214376295463dcd968c18edb8f2f2
[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" "759d1828c8d6842a287b57dbfa6d08ec39e214376295463dcd968c18edb8f2f2", kill_on_drop: false }`
[INFO] [stderr]    Compiling extract-frontmatter v1.0.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.15s
[INFO] running `Command { std: "docker" "inspect" "759d1828c8d6842a287b57dbfa6d08ec39e214376295463dcd968c18edb8f2f2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "759d1828c8d6842a287b57dbfa6d08ec39e214376295463dcd968c18edb8f2f2", kill_on_drop: false }`
[INFO] [stdout] 759d1828c8d6842a287b57dbfa6d08ec39e214376295463dcd968c18edb8f2f2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 76eaf95c5fb50d028554b416c951059a8e8fc0aa52389465c55d5c0eb501ada4
[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" "76eaf95c5fb50d028554b416c951059a8e8fc0aa52389465c55d5c0eb501ada4", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stdout] running 17 tests
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/extract_frontmatter-6756d51341f2f6da
[INFO] [stdout] test config::tests::test_discard_first ... ok
[INFO] [stdout] test frontmatter::line_tests::test_get_frontmatter_lines_by_end_line_and_lead_chars ... ok
[INFO] [stdout] test frontmatter::clean_tests::test_discard_first_and_lead_chars ... ok
[INFO] [stdout] test frontmatter::line_tests::test_get_frontmatter_lines_by_end_line ... ok
[INFO] [stdout] test config::tests::test_get_end_line ... ok
[INFO] [stdout] test frontmatter::line_tests::test_get_frontmatter_lines_by_number ... ok
[INFO] [stdout] test frontmatter::clean_tests::test_lead_chars ... ok
[INFO] [stdout] test frontmatter::clean_tests::test_discard_first ... ok
[INFO] [stdout] test config::tests::test_get_lead_chars ... ok
[INFO] [stdout] test frontmatter::line_tests::test_get_frontmatter_lines_by_lead_chars ... ok
[INFO] [stdout] test tests::test_extract_by_lead_chars ... ok
[INFO] [stdout] test tests::test_extract_by_end_line_and_lead_chars ... ok
[INFO] [stdout] test tests::test_extract_by_discard_first_and_end_line ... ok
[INFO] [stdout] test tests::test_extract_by_discard_first_and_number ... ok
[INFO] [stdout] test config::tests::test_get_number ... ok
[INFO] [stdout] test config::tests::test_new_config ... ok
[INFO] [stdout] test config::tests::test_empty_config_panics ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 17 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests extract-frontmatter
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test src/config.rs - config::Config::new (line 28) ... ok
[INFO] [stdout] test src/lib.rs - (line 25) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "76eaf95c5fb50d028554b416c951059a8e8fc0aa52389465c55d5c0eb501ada4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "76eaf95c5fb50d028554b416c951059a8e8fc0aa52389465c55d5c0eb501ada4", kill_on_drop: false }`
[INFO] [stdout] 76eaf95c5fb50d028554b416c951059a8e8fc0aa52389465c55d5c0eb501ada4