[INFO] fetching crate cycle-sort 0.3.0...
[INFO] testing cycle-sort-0.3.0 against beta-2021-01-01 for beta-1.50-1
[INFO] extracting crate cycle-sort 0.3.0 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate cycle-sort 0.3.0 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 cycle-sort 0.3.0
[INFO] finished tweaking crates.io crate cycle-sort 0.3.0
[INFO] tweaked toml for crates.io crate cycle-sort 0.3.0 written to /workspace/builds/worker-2/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-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] 3dd039f5bab0678ce95bc624dcf5616fd145e83591c72aeeb1becc1c9a8ce42b
[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" "3dd039f5bab0678ce95bc624dcf5616fd145e83591c72aeeb1becc1c9a8ce42b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3dd039f5bab0678ce95bc624dcf5616fd145e83591c72aeeb1becc1c9a8ce42b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3dd039f5bab0678ce95bc624dcf5616fd145e83591c72aeeb1becc1c9a8ce42b", kill_on_drop: false }`
[INFO] [stdout] 3dd039f5bab0678ce95bc624dcf5616fd145e83591c72aeeb1becc1c9a8ce42b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] 01f73facb5c8a743a75359474e8a01206153f3e6c192477fcb67557a20ac7e3b
[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" "01f73facb5c8a743a75359474e8a01206153f3e6c192477fcb67557a20ac7e3b", kill_on_drop: false }`
[INFO] [stderr]    Compiling cycle-sort v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.69s
[INFO] running `Command { std: "docker" "inspect" "01f73facb5c8a743a75359474e8a01206153f3e6c192477fcb67557a20ac7e3b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "01f73facb5c8a743a75359474e8a01206153f3e6c192477fcb67557a20ac7e3b", kill_on_drop: false }`
[INFO] [stdout] 01f73facb5c8a743a75359474e8a01206153f3e6c192477fcb67557a20ac7e3b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] 06f2143eb4a9be2b2284f03ec76be492627e04014e373131b7cb855cf43c313e
[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" "06f2143eb4a9be2b2284f03ec76be492627e04014e373131b7cb855cf43c313e", kill_on_drop: false }`
[INFO] [stderr]    Compiling rand_core v0.4.2
[INFO] [stderr]    Compiling autocfg v0.1.7
[INFO] [stderr]    Compiling rand_core v0.3.1
[INFO] [stderr]    Compiling rand_os v0.1.3
[INFO] [stderr]    Compiling rand_jitter v0.1.4
[INFO] [stderr]    Compiling rand_hc v0.1.0
[INFO] [stderr]    Compiling rand_isaac v0.1.1
[INFO] [stderr]    Compiling rand_xorshift v0.1.1
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling cycle-sort v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 9.00s
[INFO] running `Command { std: "docker" "inspect" "06f2143eb4a9be2b2284f03ec76be492627e04014e373131b7cb855cf43c313e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "06f2143eb4a9be2b2284f03ec76be492627e04014e373131b7cb855cf43c313e", kill_on_drop: false }`
[INFO] [stdout] 06f2143eb4a9be2b2284f03ec76be492627e04014e373131b7cb855cf43c313e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 284ca1b3e8d868cc80235606ca30d97d0a199b8e91af7c0fb913e921fce4c14d
[INFO] running `Command { std: "docker" "start" "-a" "284ca1b3e8d868cc80235606ca30d97d0a199b8e91af7c0fb913e921fce4c14d", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.08s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/cycle_sort-4a86ebb635ffe7de
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test util::tests::equality ... ok
[INFO] [stdout] test cycle_sort::tests::zero_sized_elements ... ok
[INFO] [stdout] test cycle_sort::tests::correct_writes ... ok
[INFO] [stdout] test cycle_sort::tests::sort_strings ... ok
[INFO] [stdout] test cycle_sort::tests::basic_sort ... ok
[INFO] [stderr]    Doc-tests cycle-sort
[INFO] [stdout] test cycle_sort::tests::many_duplicates ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.59s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test src/cycle_sort.rs - cycle_sort::cycle_sort (line 14) ... ok
[INFO] [stdout] test src/cycle_sort.rs - cycle_sort::cycle_sort_by_key (line 57) ... ok
[INFO] [stdout] test src/cycle_sort.rs - cycle_sort::cycle_sort_by (line 35) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.91s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "284ca1b3e8d868cc80235606ca30d97d0a199b8e91af7c0fb913e921fce4c14d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "284ca1b3e8d868cc80235606ca30d97d0a199b8e91af7c0fb913e921fce4c14d", kill_on_drop: false }`
[INFO] [stdout] 284ca1b3e8d868cc80235606ca30d97d0a199b8e91af7c0fb913e921fce4c14d