[INFO] fetching crate fragment 0.3.1...
[INFO] testing fragment-0.3.1 against beta-2021-01-01 for beta-1.50-1
[INFO] extracting crate fragment 0.3.1 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate fragment 0.3.1 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 fragment 0.3.1
[INFO] finished tweaking crates.io crate fragment 0.3.1
[INFO] tweaked toml for crates.io crate fragment 0.3.1 written to /workspace/builds/worker-0/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-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" "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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] f6390574aeb751788b9345c75092bba7f355475f02ad9723b29b898f422f2174
[INFO] running `Command { std: "docker" "start" "-a" "f6390574aeb751788b9345c75092bba7f355475f02ad9723b29b898f422f2174", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f6390574aeb751788b9345c75092bba7f355475f02ad9723b29b898f422f2174", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f6390574aeb751788b9345c75092bba7f355475f02ad9723b29b898f422f2174", kill_on_drop: false }`
[INFO] [stdout] f6390574aeb751788b9345c75092bba7f355475f02ad9723b29b898f422f2174
[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" "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] 745bfd3f4566dda9e5fdacad0e854bc73315f4fcca0cdb3fe8daac27e6374e87
[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" "745bfd3f4566dda9e5fdacad0e854bc73315f4fcca0cdb3fe8daac27e6374e87", kill_on_drop: false }`
[INFO] [stderr]    Compiling fragment v0.3.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.07s
[INFO] running `Command { std: "docker" "inspect" "745bfd3f4566dda9e5fdacad0e854bc73315f4fcca0cdb3fe8daac27e6374e87", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "745bfd3f4566dda9e5fdacad0e854bc73315f4fcca0cdb3fe8daac27e6374e87", kill_on_drop: false }`
[INFO] [stdout] 745bfd3f4566dda9e5fdacad0e854bc73315f4fcca0cdb3fe8daac27e6374e87
[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" "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] 9a79deb8d017c4ae0a799682cbbb3d07588ca1b73398dc8c1b06134c6c479a93
[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" "9a79deb8d017c4ae0a799682cbbb3d07588ca1b73398dc8c1b06134c6c479a93", kill_on_drop: false }`
[INFO] [stderr]    Compiling fragment v0.3.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.44s
[INFO] running `Command { std: "docker" "inspect" "9a79deb8d017c4ae0a799682cbbb3d07588ca1b73398dc8c1b06134c6c479a93", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9a79deb8d017c4ae0a799682cbbb3d07588ca1b73398dc8c1b06134c6c479a93", kill_on_drop: false }`
[INFO] [stdout] 9a79deb8d017c4ae0a799682cbbb3d07588ca1b73398dc8c1b06134c6c479a93
[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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 1ce03895dafcc80e40af6fdcc23aacfa066caa933522226717d7ad4232bc2dcb
[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" "1ce03895dafcc80e40af6fdcc23aacfa066caa933522226717d7ad4232bc2dcb", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/fragment-370579758d706eb3
[INFO] [stdout] 
[INFO] [stdout] running 9 tests
[INFO] [stdout] test matching::tests::find_drops_zero_value_results ... ok
[INFO] [stdout] test matching::tests::find_returns_a_correctly_limited_set_of_results ... ok
[INFO] [stdout] test matching::tests::find_returns_a_correctly_ordered_set_of_results ... ok
[INFO] [stdout] test matching::tests::similarity_limits_score_to_1 ... ok
[INFO] [stdout] test matching::tests::similarity_scores_correctly_when_there_are_no_similarities ... ok
[INFO] [stdout] test matching::tests::similarity_scores_correctly_when_there_is_an_exact_match ... ok
[INFO] [stdout] test matching::tests::similarity_scores_correctly_when_there_is_a_half_match ... ok
[INFO] [stderr]    Doc-tests fragment
[INFO] [stdout] test matching::tests::similarity_returns_zero_when_there_are_unmatched_terms ... ok
[INFO] [stdout] test matching::tests::similarity_sums_term_matches ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 9 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/matching/mod.rs - matching::find (line 15) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.75s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "1ce03895dafcc80e40af6fdcc23aacfa066caa933522226717d7ad4232bc2dcb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1ce03895dafcc80e40af6fdcc23aacfa066caa933522226717d7ad4232bc2dcb", kill_on_drop: false }`
[INFO] [stdout] 1ce03895dafcc80e40af6fdcc23aacfa066caa933522226717d7ad4232bc2dcb