[INFO] fetching crate bugsalot 0.2.1...
[INFO] checking bugsalot-0.2.1 against try#bb9dbf1d07454a99066eabaabd5819851281494b for pr-80920
[INFO] extracting crate bugsalot 0.2.1 into /workspace/builds/worker-11/source
[INFO] validating manifest of crates.io crate bugsalot 0.2.1 on toolchain bb9dbf1d07454a99066eabaabd5819851281494b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+bb9dbf1d07454a99066eabaabd5819851281494b" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate bugsalot 0.2.1
[INFO] finished tweaking crates.io crate bugsalot 0.2.1
[INFO] tweaked toml for crates.io crate bugsalot 0.2.1 written to /workspace/builds/worker-11/source/Cargo.toml
[INFO] crate crates.io crate bugsalot 0.2.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+bb9dbf1d07454a99066eabaabd5819851281494b" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+bb9dbf1d07454a99066eabaabd5819851281494b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c62806ffbe5081ba042bd41a08d7cc5d3120268f24fa4fd5faf090640fcb7817
[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" "c62806ffbe5081ba042bd41a08d7cc5d3120268f24fa4fd5faf090640fcb7817", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c62806ffbe5081ba042bd41a08d7cc5d3120268f24fa4fd5faf090640fcb7817", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c62806ffbe5081ba042bd41a08d7cc5d3120268f24fa4fd5faf090640fcb7817", kill_on_drop: false }`
[INFO] [stdout] c62806ffbe5081ba042bd41a08d7cc5d3120268f24fa4fd5faf090640fcb7817
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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=forbid" "-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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+bb9dbf1d07454a99066eabaabd5819851281494b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4147ecb9826ee96597a1881a82ac17422d47def3ca958c1e3236f7d296378f7e
[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" "4147ecb9826ee96597a1881a82ac17422d47def3ca958c1e3236f7d296378f7e", kill_on_drop: false }`
[INFO] [stderr]     Checking bugsalot v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.64s
[INFO] running `Command { std: "docker" "inspect" "4147ecb9826ee96597a1881a82ac17422d47def3ca958c1e3236f7d296378f7e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4147ecb9826ee96597a1881a82ac17422d47def3ca958c1e3236f7d296378f7e", kill_on_drop: false }`
[INFO] [stdout] 4147ecb9826ee96597a1881a82ac17422d47def3ca958c1e3236f7d296378f7e