[INFO] cloning repository https://github.com/ddprrt/take-n-from-m
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ddprrt/take-n-from-m" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fddprrt%2Ftake-n-from-m", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fddprrt%2Ftake-n-from-m'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 5c5f5b618747a4780314053995ca8a064d8fb37f
[INFO] testing ddprrt/take-n-from-m against 1.55.0 for beta-1.56-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fddprrt%2Ftake-n-from-m" "/workspace/builds/worker-15/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-15/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ddprrt/take-n-from-m on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ddprrt/take-n-from-m
[INFO] finished tweaking git repo https://github.com/ddprrt/take-n-from-m
[INFO] tweaked toml for git repo https://github.com/ddprrt/take-n-from-m written to /workspace/builds/worker-15/source/Cargo.toml
[INFO] crate git repo https://github.com/ddprrt/take-n-from-m already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6db6b088eeeb92e6067f7200d71543b140f84857d3a4c3b263fd4a8120d0ff29
[INFO] running `Command { std: "docker" "start" "-a" "6db6b088eeeb92e6067f7200d71543b140f84857d3a4c3b263fd4a8120d0ff29", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6db6b088eeeb92e6067f7200d71543b140f84857d3a4c3b263fd4a8120d0ff29", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6db6b088eeeb92e6067f7200d71543b140f84857d3a4c3b263fd4a8120d0ff29", kill_on_drop: false }`
[INFO] [stdout] 6db6b088eeeb92e6067f7200d71543b140f84857d3a4c3b263fd4a8120d0ff29
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 19095b3b1249826d0f72772748b8f730e13b073da170ad43977a1604104fb9de
[INFO] running `Command { std: "docker" "start" "-a" "19095b3b1249826d0f72772748b8f730e13b073da170ad43977a1604104fb9de", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.81
[INFO] [stderr]    Compiling getrandom v0.1.15
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling random v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.38s
[INFO] running `Command { std: "docker" "inspect" "19095b3b1249826d0f72772748b8f730e13b073da170ad43977a1604104fb9de", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "19095b3b1249826d0f72772748b8f730e13b073da170ad43977a1604104fb9de", kill_on_drop: false }`
[INFO] [stdout] 19095b3b1249826d0f72772748b8f730e13b073da170ad43977a1604104fb9de
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] afc8be3fa39bd11fe1f4cc222c604791d1447913a1479aa4cda01c560d4a1293
[INFO] running `Command { std: "docker" "start" "-a" "afc8be3fa39bd11fe1f4cc222c604791d1447913a1479aa4cda01c560d4a1293", kill_on_drop: false }`
[INFO] [stderr]    Compiling random v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.17s
[INFO] running `Command { std: "docker" "inspect" "afc8be3fa39bd11fe1f4cc222c604791d1447913a1479aa4cda01c560d4a1293", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "afc8be3fa39bd11fe1f4cc222c604791d1447913a1479aa4cda01c560d4a1293", kill_on_drop: false }`
[INFO] [stdout] afc8be3fa39bd11fe1f4cc222c604791d1447913a1479aa4cda01c560d4a1293
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] ffefa302b206da87a779d25d4a76b1d3152b4c070d975f6d3a11f43c3ad8f165
[INFO] running `Command { std: "docker" "start" "-a" "ffefa302b206da87a779d25d4a76b1d3152b4c070d975f6d3a11f43c3ad8f165", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/random-60ccba1b150db6d4)
[INFO] [stdout] running 1 test
[INFO] [stdout] test test_take_n_from_m ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "ffefa302b206da87a779d25d4a76b1d3152b4c070d975f6d3a11f43c3ad8f165", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ffefa302b206da87a779d25d4a76b1d3152b4c070d975f6d3a11f43c3ad8f165", kill_on_drop: false }`
[INFO] [stdout] ffefa302b206da87a779d25d4a76b1d3152b4c070d975f6d3a11f43c3ad8f165