[INFO] fetching crate slot_generator 0.1.0...
[INFO] testing slot_generator-0.1.0 against beta-2021-01-01 for beta-1.50-1
[INFO] extracting crate slot_generator 0.1.0 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate slot_generator 0.1.0 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 slot_generator 0.1.0
[INFO] finished tweaking crates.io crate slot_generator 0.1.0
[INFO] tweaked toml for crates.io crate slot_generator 0.1.0 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] [stdout] 3af8954ce58f785e29becfe648412d3758255db8ace3a1eddd659f069e73f5e9
[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" "3af8954ce58f785e29becfe648412d3758255db8ace3a1eddd659f069e73f5e9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3af8954ce58f785e29becfe648412d3758255db8ace3a1eddd659f069e73f5e9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3af8954ce58f785e29becfe648412d3758255db8ace3a1eddd659f069e73f5e9", kill_on_drop: false }`
[INFO] [stdout] 3af8954ce58f785e29becfe648412d3758255db8ace3a1eddd659f069e73f5e9
[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] 858f87e598f297a3b616afdf90766e6fd5d09c7ad7c2db30eb18eb3211362428
[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" "858f87e598f297a3b616afdf90766e6fd5d09c7ad7c2db30eb18eb3211362428", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling slot_generator v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.54s
[INFO] running `Command { std: "docker" "inspect" "858f87e598f297a3b616afdf90766e6fd5d09c7ad7c2db30eb18eb3211362428", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "858f87e598f297a3b616afdf90766e6fd5d09c7ad7c2db30eb18eb3211362428", kill_on_drop: false }`
[INFO] [stdout] 858f87e598f297a3b616afdf90766e6fd5d09c7ad7c2db30eb18eb3211362428
[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] dc7a77c9de67b7d40f3ec17aec6294af7d558b3e15d6347d8dcc826a9a3fce3b
[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" "dc7a77c9de67b7d40f3ec17aec6294af7d558b3e15d6347d8dcc826a9a3fce3b", kill_on_drop: false }`
[INFO] [stderr]    Compiling slot_generator v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.94s
[INFO] running `Command { std: "docker" "inspect" "dc7a77c9de67b7d40f3ec17aec6294af7d558b3e15d6347d8dcc826a9a3fce3b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dc7a77c9de67b7d40f3ec17aec6294af7d558b3e15d6347d8dcc826a9a3fce3b", kill_on_drop: false }`
[INFO] [stdout] dc7a77c9de67b7d40f3ec17aec6294af7d558b3e15d6347d8dcc826a9a3fce3b
[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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 2dc8e876d3af1e7fa3a1e963b7e1daaa6176e094134db0e2495fc5b2dd6c10c8
[INFO] running `Command { std: "docker" "start" "-a" "2dc8e876d3af1e7fa3a1e963b7e1daaa6176e094134db0e2495fc5b2dd6c10c8", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/slot_generator-da4b7dc0088b0133
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test tests::generate_slots ... ok
[INFO] [stdout] test tests::replace_slots ... ok
[INFO] [stdout] test tests::exhaust_slots ... ok
[INFO] [stdout] test tests::replace_filled_slots ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.02s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests slot_generator
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "2dc8e876d3af1e7fa3a1e963b7e1daaa6176e094134db0e2495fc5b2dd6c10c8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2dc8e876d3af1e7fa3a1e963b7e1daaa6176e094134db0e2495fc5b2dd6c10c8", kill_on_drop: false }`
[INFO] [stdout] 2dc8e876d3af1e7fa3a1e963b7e1daaa6176e094134db0e2495fc5b2dd6c10c8