[INFO] fetching crate rev_slice 0.1.5...
[INFO] testing rev_slice-0.1.5 against beta-2021-01-01 for beta-1.50-1
[INFO] extracting crate rev_slice 0.1.5 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate rev_slice 0.1.5 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 rev_slice 0.1.5
[INFO] finished tweaking crates.io crate rev_slice 0.1.5
[INFO] tweaked toml for crates.io crate rev_slice 0.1.5 written to /workspace/builds/worker-6/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-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] 3198d87879471b74121f0b5ddd8c1ddefdb1a39dbb12f7533daa383cd1b7f1c1
[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" "3198d87879471b74121f0b5ddd8c1ddefdb1a39dbb12f7533daa383cd1b7f1c1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3198d87879471b74121f0b5ddd8c1ddefdb1a39dbb12f7533daa383cd1b7f1c1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3198d87879471b74121f0b5ddd8c1ddefdb1a39dbb12f7533daa383cd1b7f1c1", kill_on_drop: false }`
[INFO] [stdout] 3198d87879471b74121f0b5ddd8c1ddefdb1a39dbb12f7533daa383cd1b7f1c1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] d2e5de151d83cd7dfff2f7da324efcfcf021709c36cab18a509452e173f08cfe
[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" "d2e5de151d83cd7dfff2f7da324efcfcf021709c36cab18a509452e173f08cfe", kill_on_drop: false }`
[INFO] [stderr]    Compiling rev_slice v0.1.5 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.83s
[INFO] running `Command { std: "docker" "inspect" "d2e5de151d83cd7dfff2f7da324efcfcf021709c36cab18a509452e173f08cfe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d2e5de151d83cd7dfff2f7da324efcfcf021709c36cab18a509452e173f08cfe", kill_on_drop: false }`
[INFO] [stdout] d2e5de151d83cd7dfff2f7da324efcfcf021709c36cab18a509452e173f08cfe
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] 92f183b6c061a62af13fd8bbaaeaf049d221f69ec7a396563ab9338572064e9e
[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" "92f183b6c061a62af13fd8bbaaeaf049d221f69ec7a396563ab9338572064e9e", kill_on_drop: false }`
[INFO] [stderr]    Compiling rev_slice v0.1.5 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.09s
[INFO] running `Command { std: "docker" "inspect" "92f183b6c061a62af13fd8bbaaeaf049d221f69ec7a396563ab9338572064e9e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "92f183b6c061a62af13fd8bbaaeaf049d221f69ec7a396563ab9338572064e9e", kill_on_drop: false }`
[INFO] [stdout] 92f183b6c061a62af13fd8bbaaeaf049d221f69ec7a396563ab9338572064e9e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] f84d636dbe0b8274c0ced858f2d1604a2f9ca8dcbcc58ba1871d80e110abd350
[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" "f84d636dbe0b8274c0ced858f2d1604a2f9ca8dcbcc58ba1871d80e110abd350", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/rev_slice-f34dbccc3ab86918
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stderr]    Doc-tests rev_slice
[INFO] [stdout] test tests::it_works ... ok
[INFO] [stdout] test tests::iter_works_too ... 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 1 test
[INFO] [stdout] test src/lib.rs - (line 11) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.56s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "f84d636dbe0b8274c0ced858f2d1604a2f9ca8dcbcc58ba1871d80e110abd350", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f84d636dbe0b8274c0ced858f2d1604a2f9ca8dcbcc58ba1871d80e110abd350", kill_on_drop: false }`
[INFO] [stdout] f84d636dbe0b8274c0ced858f2d1604a2f9ca8dcbcc58ba1871d80e110abd350