[INFO] cloning repository https://github.com/robertdfrench/rusty-doors
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/robertdfrench/rusty-doors" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frobertdfrench%2Frusty-doors", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frobertdfrench%2Frusty-doors'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] caab2f4ef9651349a54b32d47766530949a52b61
[INFO] checking robertdfrench/rusty-doors against master#db1fb85cff63ad5fffe435e17128f99f9e1d970c for pr-89056
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frobertdfrench%2Frusty-doors" "/workspace/builds/worker-81/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-81/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/robertdfrench/rusty-doors on toolchain db1fb85cff63ad5fffe435e17128f99f9e1d970c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/robertdfrench/rusty-doors
[INFO] finished tweaking git repo https://github.com/robertdfrench/rusty-doors
[INFO] tweaked toml for git repo https://github.com/robertdfrench/rusty-doors written to /workspace/builds/worker-81/source/Cargo.toml
[INFO] crate git repo https://github.com/robertdfrench/rusty-doors already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-81/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-81/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7f3c4a47252be01b1911bff0e7a22135e6a49729329f12af7e76175e286f60bf
[INFO] running `Command { std: "docker" "start" "-a" "7f3c4a47252be01b1911bff0e7a22135e6a49729329f12af7e76175e286f60bf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7f3c4a47252be01b1911bff0e7a22135e6a49729329f12af7e76175e286f60bf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7f3c4a47252be01b1911bff0e7a22135e6a49729329f12af7e76175e286f60bf", kill_on_drop: false }`
[INFO] [stdout] 7f3c4a47252be01b1911bff0e7a22135e6a49729329f12af7e76175e286f60bf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-81/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-81/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 151e38bf7f0d73e95d222e1a905e68f2bf4db3c31cbf8f0255922ed2b11ff6d6
[INFO] running `Command { std: "docker" "start" "-a" "151e38bf7f0d73e95d222e1a905e68f2bf4db3c31cbf8f0255922ed2b11ff6d6", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.51
[INFO] [stderr]     Checking doors v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]    --> src/lib.rs:104:3
[INFO] [stdout]     |
[INFO] [stdout] 104 |         (success >= 0)
[INFO] [stdout]     |         ^            ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 104 -         (success >= 0)
[INFO] [stdout] 104 +         success >= 0
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]    --> src/lib.rs:104:3
[INFO] [stdout]     |
[INFO] [stdout] 104 |         (success >= 0)
[INFO] [stdout]     |         ^            ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 104 -         (success >= 0)
[INFO] [stdout] 104 +         success >= 0
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.95s
[INFO] running `Command { std: "docker" "inspect" "151e38bf7f0d73e95d222e1a905e68f2bf4db3c31cbf8f0255922ed2b11ff6d6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "151e38bf7f0d73e95d222e1a905e68f2bf4db3c31cbf8f0255922ed2b11ff6d6", kill_on_drop: false }`
[INFO] [stdout] 151e38bf7f0d73e95d222e1a905e68f2bf4db3c31cbf8f0255922ed2b11ff6d6