[INFO] fetching crate my_rust_study 0.1.0...
[INFO] testing my_rust_study-0.1.0 against beta-2021-01-01 for beta-1.50-1
[INFO] extracting crate my_rust_study 0.1.0 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate my_rust_study 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 my_rust_study 0.1.0
[INFO] finished tweaking crates.io crate my_rust_study 0.1.0
[INFO] tweaked toml for crates.io crate my_rust_study 0.1.0 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate crates.io crate my_rust_study 0.1.0 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]     Blocking waiting for file lock on package cache
[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] 950f422c26f0fa7746749258cc589adeaf62613a3d1cfb7699e31ec9acd49687
[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" "950f422c26f0fa7746749258cc589adeaf62613a3d1cfb7699e31ec9acd49687", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "950f422c26f0fa7746749258cc589adeaf62613a3d1cfb7699e31ec9acd49687", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "950f422c26f0fa7746749258cc589adeaf62613a3d1cfb7699e31ec9acd49687", kill_on_drop: false }`
[INFO] [stdout] 950f422c26f0fa7746749258cc589adeaf62613a3d1cfb7699e31ec9acd49687
[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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 65ec52a1eaf7117fcdadc38ba0195852d7c074bce6928d1c4e372c19662c0950
[INFO] running `Command { std: "docker" "start" "-a" "65ec52a1eaf7117fcdadc38ba0195852d7c074bce6928d1c4e372c19662c0950", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling my_rust_study v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.60s
[INFO] running `Command { std: "docker" "inspect" "65ec52a1eaf7117fcdadc38ba0195852d7c074bce6928d1c4e372c19662c0950", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "65ec52a1eaf7117fcdadc38ba0195852d7c074bce6928d1c4e372c19662c0950", kill_on_drop: false }`
[INFO] [stdout] 65ec52a1eaf7117fcdadc38ba0195852d7c074bce6928d1c4e372c19662c0950
[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] 8ca1c5b8424f6796c7b45f0221a523729f9c396e42c78b6fe7d4fb283c31f01a
[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" "8ca1c5b8424f6796c7b45f0221a523729f9c396e42c78b6fe7d4fb283c31f01a", kill_on_drop: false }`
[INFO] [stderr]    Compiling my_rust_study v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.82s
[INFO] running `Command { std: "docker" "inspect" "8ca1c5b8424f6796c7b45f0221a523729f9c396e42c78b6fe7d4fb283c31f01a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8ca1c5b8424f6796c7b45f0221a523729f9c396e42c78b6fe7d4fb283c31f01a", kill_on_drop: false }`
[INFO] [stdout] 8ca1c5b8424f6796c7b45f0221a523729f9c396e42c78b6fe7d4fb283c31f01a
[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] [stdout] 1c234a3284403fd9a8bb5816ad3441dc2da2dab21ab0a0192f6c6927919c1925
[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" "1c234a3284403fd9a8bb5816ad3441dc2da2dab21ab0a0192f6c6927919c1925", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stdout] running 0 tests
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/my_rust_study-e67984fb33df3f47
[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" "1c234a3284403fd9a8bb5816ad3441dc2da2dab21ab0a0192f6c6927919c1925", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1c234a3284403fd9a8bb5816ad3441dc2da2dab21ab0a0192f6c6927919c1925", kill_on_drop: false }`
[INFO] [stdout] 1c234a3284403fd9a8bb5816ad3441dc2da2dab21ab0a0192f6c6927919c1925