[INFO] fetching crate slice-ext 0.1.4...
[INFO] testing slice-ext-0.1.4 against beta-2021-01-01 for beta-1.50-1
[INFO] extracting crate slice-ext 0.1.4 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate slice-ext 0.1.4 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 slice-ext 0.1.4
[INFO] finished tweaking crates.io crate slice-ext 0.1.4
[INFO] tweaked toml for crates.io crate slice-ext 0.1.4 written to /workspace/builds/worker-3/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-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" "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] 8400bcafd74a04d15633058531a7728ead527f248cf7c65620f9c578c19819f2
[INFO] running `Command { std: "docker" "start" "-a" "8400bcafd74a04d15633058531a7728ead527f248cf7c65620f9c578c19819f2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8400bcafd74a04d15633058531a7728ead527f248cf7c65620f9c578c19819f2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8400bcafd74a04d15633058531a7728ead527f248cf7c65620f9c578c19819f2", kill_on_drop: false }`
[INFO] [stdout] 8400bcafd74a04d15633058531a7728ead527f248cf7c65620f9c578c19819f2
[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" "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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 018d46a2895a08aa85c6fa3d24ff10c44ca232a2f9da7ce4ebd8b1b921a47b15
[INFO] running `Command { std: "docker" "start" "-a" "018d46a2895a08aa85c6fa3d24ff10c44ca232a2f9da7ce4ebd8b1b921a47b15", kill_on_drop: false }`
[INFO] [stderr]    Compiling slice-ext v0.1.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.68s
[INFO] running `Command { std: "docker" "inspect" "018d46a2895a08aa85c6fa3d24ff10c44ca232a2f9da7ce4ebd8b1b921a47b15", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "018d46a2895a08aa85c6fa3d24ff10c44ca232a2f9da7ce4ebd8b1b921a47b15", kill_on_drop: false }`
[INFO] [stdout] 018d46a2895a08aa85c6fa3d24ff10c44ca232a2f9da7ce4ebd8b1b921a47b15
[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" "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] c48b095acc6f9a25765d7378cfeda49909f3bf065f696a96b428f72127a6af20
[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" "c48b095acc6f9a25765d7378cfeda49909f3bf065f696a96b428f72127a6af20", kill_on_drop: false }`
[INFO] [stderr]    Compiling slice-ext v0.1.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.03s
[INFO] running `Command { std: "docker" "inspect" "c48b095acc6f9a25765d7378cfeda49909f3bf065f696a96b428f72127a6af20", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c48b095acc6f9a25765d7378cfeda49909f3bf065f696a96b428f72127a6af20", kill_on_drop: false }`
[INFO] [stdout] c48b095acc6f9a25765d7378cfeda49909f3bf065f696a96b428f72127a6af20
[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" "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] f5d5ce524f3e1143c2d5b004a51171b933acb6cde4d3c03ba953f69e8e21a80f
[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" "f5d5ce524f3e1143c2d5b004a51171b933acb6cde4d3c03ba953f69e8e21a80f", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/slice_ext-9505691b86249ce4
[INFO] [stdout] 
[INFO] [stdout] running 8 tests
[INFO] [stdout] test tests::test_split_after_end ... ok
[INFO] [stdout] test tests::test_split_after_no_match ... ok
[INFO] [stdout] test tests::test_split_before_no_match ... ok
[INFO] [stdout] test tests::test_split_after_start ... ok
[INFO] [stdout] test tests::test_split_after ... ok
[INFO] [stdout] test tests::test_split_before ... ok
[INFO] [stdout] test tests::test_split_before_end ... ok
[INFO] [stdout] test tests::test_split_before_start ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 8 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests slice-ext
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test src/lib.rs - SplitAfter (line 38) ... ok
[INFO] [stdout] test src/lib.rs - SplitBefore (line 9) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.70s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "f5d5ce524f3e1143c2d5b004a51171b933acb6cde4d3c03ba953f69e8e21a80f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f5d5ce524f3e1143c2d5b004a51171b933acb6cde4d3c03ba953f69e8e21a80f", kill_on_drop: false }`
[INFO] [stdout] f5d5ce524f3e1143c2d5b004a51171b933acb6cde4d3c03ba953f69e8e21a80f