[INFO] fetching crate t-rec 0.4.0...
[INFO] testing t-rec-0.4.0 against beta-2021-01-01 for beta-1.50-1
[INFO] extracting crate t-rec 0.4.0 into /workspace/builds/worker-14/source
[INFO] validating manifest of crates.io crate t-rec 0.4.0 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 t-rec 0.4.0
[INFO] finished tweaking crates.io crate t-rec 0.4.0
[INFO] tweaked toml for crates.io crate t-rec 0.4.0 written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] crate crates.io crate t-rec 0.4.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded png v0.16.8
[INFO] [stderr]   Downloaded core-graphics v0.22.2
[INFO] [stderr]   Downloaded tiff v0.6.1
[INFO] [stderr]   Downloaded core-graphics-types v0.1.1
[INFO] [stderr]   Downloaded anyhow v1.0.35
[INFO] [stderr]   Downloaded image v0.23.12
[INFO] [stderr]   Downloaded winapi-wsapoll v0.1.1
[INFO] [stderr]   Downloaded x11rb v0.7.0
[INFO] [stderr]   Downloaded gethostname v0.2.1
[INFO] [stderr]   Downloaded weezl v0.1.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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] 52d7a96aa2033dbfea262ee221f25ac889c3e54db853ddc7dfaf2d806f1a23d7
[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" "52d7a96aa2033dbfea262ee221f25ac889c3e54db853ddc7dfaf2d806f1a23d7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "52d7a96aa2033dbfea262ee221f25ac889c3e54db853ddc7dfaf2d806f1a23d7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "52d7a96aa2033dbfea262ee221f25ac889c3e54db853ddc7dfaf2d806f1a23d7", kill_on_drop: false }`
[INFO] [stdout] 52d7a96aa2033dbfea262ee221f25ac889c3e54db853ddc7dfaf2d806f1a23d7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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] ec841410fe7cbc9e2a332f64beb875ec73a12ab5c813ad4b9050f5df1fb466ca
[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" "ec841410fe7cbc9e2a332f64beb875ec73a12ab5c813ad4b9050f5df1fb466ca", kill_on_drop: false }`
[INFO] [stderr]    Compiling t-rec v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling getrandom v0.1.15
[INFO] [stderr]    Compiling gethostname v0.2.1
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling rayon-core v1.9.0
[INFO] [stderr]    Compiling clap v2.33.3
[INFO] [stderr]    Compiling x11rb v0.7.0
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling rayon v1.5.0
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling tempfile v3.1.0
[INFO] [stderr]    Compiling jpeg-decoder v0.1.20
[INFO] [stderr]    Compiling tiff v0.6.1
[INFO] [stderr]    Compiling image v0.23.12
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 49.16s
[INFO] running `Command { std: "docker" "inspect" "ec841410fe7cbc9e2a332f64beb875ec73a12ab5c813ad4b9050f5df1fb466ca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ec841410fe7cbc9e2a332f64beb875ec73a12ab5c813ad4b9050f5df1fb466ca", kill_on_drop: false }`
[INFO] [stdout] ec841410fe7cbc9e2a332f64beb875ec73a12ab5c813ad4b9050f5df1fb466ca
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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] 30bc8fcb1a46bf2ca9a106f92650bcf81d530d0dc7fb9f4d953041b7d8467ecb
[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" "30bc8fcb1a46bf2ca9a106f92650bcf81d530d0dc7fb9f4d953041b7d8467ecb", kill_on_drop: false }`
[INFO] [stderr]    Compiling t-rec v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.54s
[INFO] running `Command { std: "docker" "inspect" "30bc8fcb1a46bf2ca9a106f92650bcf81d530d0dc7fb9f4d953041b7d8467ecb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "30bc8fcb1a46bf2ca9a106f92650bcf81d530d0dc7fb9f4d953041b7d8467ecb", kill_on_drop: false }`
[INFO] [stdout] 30bc8fcb1a46bf2ca9a106f92650bcf81d530d0dc7fb9f4d953041b7d8467ecb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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] 6c9b59caf4649c0f630a42bffed14ccb7f620ada4c66356f9330d69352ca52cb
[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" "6c9b59caf4649c0f630a42bffed14ccb7f620ada4c66356f9330d69352ca52cb", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.08s
[INFO] [stdout] running 3 tests
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/t_rec-6991418f1c069d0d
[INFO] [stdout] test linux::test::margin_new ... ok
[INFO] [stdout] test linux::test::margin_new_equal ... ok
[INFO] [stdout] test linux::test::margin_zero ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.02s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "6c9b59caf4649c0f630a42bffed14ccb7f620ada4c66356f9330d69352ca52cb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6c9b59caf4649c0f630a42bffed14ccb7f620ada4c66356f9330d69352ca52cb", kill_on_drop: false }`
[INFO] [stdout] 6c9b59caf4649c0f630a42bffed14ccb7f620ada4c66356f9330d69352ca52cb