[INFO] fetching crate scum 0.1.0...
[INFO] testing scum-0.1.0 against 1.49.0 for beta-1.50-1
[INFO] extracting crate scum 0.1.0 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate scum 0.1.0 on toolchain 1.49.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate scum 0.1.0
[INFO] finished tweaking crates.io crate scum 0.1.0
[INFO] tweaked toml for crates.io crate scum 0.1.0 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate crates.io crate scum 0.1.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "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] 002ae554083c756af76f99e0f2b9d4872bc98bb20ebef14a2c00727f4651673d
[INFO] running `Command { std: "docker" "start" "-a" "002ae554083c756af76f99e0f2b9d4872bc98bb20ebef14a2c00727f4651673d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "002ae554083c756af76f99e0f2b9d4872bc98bb20ebef14a2c00727f4651673d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "002ae554083c756af76f99e0f2b9d4872bc98bb20ebef14a2c00727f4651673d", kill_on_drop: false }`
[INFO] [stdout] 002ae554083c756af76f99e0f2b9d4872bc98bb20ebef14a2c00727f4651673d
[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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] dcbb47a2012d5cb43b416affb1a468514b9aa346287613caa81010c51e7b6a36
[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" "dcbb47a2012d5cb43b416affb1a468514b9aa346287613caa81010c51e7b6a36", kill_on_drop: false }`
[INFO] [stderr]    Compiling scum v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.59s
[INFO] running `Command { std: "docker" "inspect" "dcbb47a2012d5cb43b416affb1a468514b9aa346287613caa81010c51e7b6a36", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dcbb47a2012d5cb43b416affb1a468514b9aa346287613caa81010c51e7b6a36", kill_on_drop: false }`
[INFO] [stdout] dcbb47a2012d5cb43b416affb1a468514b9aa346287613caa81010c51e7b6a36
[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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f7dde3d7a1de265a150b8c6eb8b696c87ed00f2116e0cde0f9f7d0c50bb050fd
[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" "f7dde3d7a1de265a150b8c6eb8b696c87ed00f2116e0cde0f9f7d0c50bb050fd", kill_on_drop: false }`
[INFO] [stderr]    Compiling scum v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.64s
[INFO] running `Command { std: "docker" "inspect" "f7dde3d7a1de265a150b8c6eb8b696c87ed00f2116e0cde0f9f7d0c50bb050fd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f7dde3d7a1de265a150b8c6eb8b696c87ed00f2116e0cde0f9f7d0c50bb050fd", kill_on_drop: false }`
[INFO] [stdout] f7dde3d7a1de265a150b8c6eb8b696c87ed00f2116e0cde0f9f7d0c50bb050fd
[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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "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] 05a176f66eec8baf9ab829d5c6f7d79014ba4b9eed268851cf02b17e8b0f1a29
[INFO] running `Command { std: "docker" "start" "-a" "05a176f66eec8baf9ab829d5c6f7d79014ba4b9eed268851cf02b17e8b0f1a29", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/scum-b132dcb9b5ecc03e
[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
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "05a176f66eec8baf9ab829d5c6f7d79014ba4b9eed268851cf02b17e8b0f1a29", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "05a176f66eec8baf9ab829d5c6f7d79014ba4b9eed268851cf02b17e8b0f1a29", kill_on_drop: false }`
[INFO] [stdout] 05a176f66eec8baf9ab829d5c6f7d79014ba4b9eed268851cf02b17e8b0f1a29