[INFO] fetching crate whitewash 0.2.0...
[INFO] checking whitewash-0.2.0 against beta for pr-78714
[INFO] extracting crate whitewash 0.2.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate whitewash 0.2.0 on toolchain beta
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate whitewash 0.2.0
[INFO] finished tweaking crates.io crate whitewash 0.2.0
[INFO] tweaked toml for crates.io crate whitewash 0.2.0 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate crates.io crate whitewash 0.2.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 90d54ac9aa07c97ed759b12b14c31c2277ce3e0568dbd5ba9df3c04855123dd2
[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" "90d54ac9aa07c97ed759b12b14c31c2277ce3e0568dbd5ba9df3c04855123dd2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "90d54ac9aa07c97ed759b12b14c31c2277ce3e0568dbd5ba9df3c04855123dd2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "90d54ac9aa07c97ed759b12b14c31c2277ce3e0568dbd5ba9df3c04855123dd2", kill_on_drop: false }`
[INFO] [stdout] 90d54ac9aa07c97ed759b12b14c31c2277ce3e0568dbd5ba9df3c04855123dd2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ebb9f0321648de1c6f37e1b0e89d0bc47935566ebdabbaa94bc12aa7b845ad34
[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" "ebb9f0321648de1c6f37e1b0e89d0bc47935566ebdabbaa94bc12aa7b845ad34", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.2.9
[INFO] [stderr]    Compiling num-rational v0.2.2
[INFO] [stderr]    Compiling gexiv2-sys v1.1.1
[INFO] [stderr]     Checking indicatif v0.13.0
[INFO] [stderr]     Checking num-integer v0.1.41
[INFO] [stderr]     Checking rexiv2 v0.8.0
[INFO] [stderr]     Checking whitewash v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.88s
[INFO] running `Command { std: "docker" "inspect" "ebb9f0321648de1c6f37e1b0e89d0bc47935566ebdabbaa94bc12aa7b845ad34", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ebb9f0321648de1c6f37e1b0e89d0bc47935566ebdabbaa94bc12aa7b845ad34", kill_on_drop: false }`
[INFO] [stdout] ebb9f0321648de1c6f37e1b0e89d0bc47935566ebdabbaa94bc12aa7b845ad34