[INFO] fetching crate cargo-first 0.1.4...
[INFO] testing cargo-first-0.1.4 against beta-2021-01-01 for beta-1.50-1
[INFO] extracting crate cargo-first 0.1.4 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate cargo-first 0.1.4 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 cargo-first 0.1.4
[INFO] finished tweaking crates.io crate cargo-first 0.1.4
[INFO] tweaked toml for crates.io crate cargo-first 0.1.4 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate crates.io crate cargo-first 0.1.4 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] 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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 32497bc9305b2148d062bd72b2bcb6ba1dc1aad01ad421eed0716c7962b14a21
[INFO] running `Command { std: "docker" "start" "-a" "32497bc9305b2148d062bd72b2bcb6ba1dc1aad01ad421eed0716c7962b14a21", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "32497bc9305b2148d062bd72b2bcb6ba1dc1aad01ad421eed0716c7962b14a21", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "32497bc9305b2148d062bd72b2bcb6ba1dc1aad01ad421eed0716c7962b14a21", kill_on_drop: false }`
[INFO] [stdout] 32497bc9305b2148d062bd72b2bcb6ba1dc1aad01ad421eed0716c7962b14a21
[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] f8cd43b3d6df751cc4f7ad48133c04371754161be5f50023542690b5761aeb86
[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" "f8cd43b3d6df751cc4f7ad48133c04371754161be5f50023542690b5761aeb86", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.60
[INFO] [stderr]    Compiling regex v1.1.9
[INFO] [stderr]    Compiling lazy_static v1.3.0
[INFO] [stderr]    Compiling ucd-util v0.1.3
[INFO] [stderr]    Compiling utf8-ranges v1.0.3
[INFO] [stderr]    Compiling aho-corasick v0.7.4
[INFO] [stderr]    Compiling regex-syntax v0.6.8
[INFO] [stderr]    Compiling thread_local v0.3.6
[INFO] [stderr]    Compiling atty v0.2.12
[INFO] [stderr]    Compiling cargo-first v0.1.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 25.41s
[INFO] running `Command { std: "docker" "inspect" "f8cd43b3d6df751cc4f7ad48133c04371754161be5f50023542690b5761aeb86", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f8cd43b3d6df751cc4f7ad48133c04371754161be5f50023542690b5761aeb86", kill_on_drop: false }`
[INFO] [stdout] f8cd43b3d6df751cc4f7ad48133c04371754161be5f50023542690b5761aeb86
[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] 7e8be2259df02b3df919dbb7c3733fd87b380aee072c664fc56f290c1e56a99b
[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" "7e8be2259df02b3df919dbb7c3733fd87b380aee072c664fc56f290c1e56a99b", kill_on_drop: false }`
[INFO] [stderr]    Compiling cargo-first v0.1.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.10s
[INFO] running `Command { std: "docker" "inspect" "7e8be2259df02b3df919dbb7c3733fd87b380aee072c664fc56f290c1e56a99b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7e8be2259df02b3df919dbb7c3733fd87b380aee072c664fc56f290c1e56a99b", kill_on_drop: false }`
[INFO] [stdout] 7e8be2259df02b3df919dbb7c3733fd87b380aee072c664fc56f290c1e56a99b
[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] 4fcd3c4a89287c8e0e6478760be6a5d76d1dc7c060d565e118b18edd977a640f
[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" "4fcd3c4a89287c8e0e6478760be6a5d76d1dc7c060d565e118b18edd977a640f", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stdout] running 0 tests
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/cargo_first-6046560e883ee416
[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" "4fcd3c4a89287c8e0e6478760be6a5d76d1dc7c060d565e118b18edd977a640f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4fcd3c4a89287c8e0e6478760be6a5d76d1dc7c060d565e118b18edd977a640f", kill_on_drop: false }`
[INFO] [stdout] 4fcd3c4a89287c8e0e6478760be6a5d76d1dc7c060d565e118b18edd977a640f