[INFO] cloning repository https://github.com/lucaszanella/on_the_fly_swap
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/lucaszanella/on_the_fly_swap" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flucaszanella%2Fon_the_fly_swap", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flucaszanella%2Fon_the_fly_swap'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b61903a8bbd4a1bc3b59e9d0b0f63c8537693700
[INFO] checking lucaszanella/on_the_fly_swap against master#22572d0994593197593e2a1b7b18d720a9a349a7 for pr-126452-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flucaszanella%2Fon_the_fly_swap" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/lucaszanella/on_the_fly_swap on toolchain 22572d0994593197593e2a1b7b18d720a9a349a7
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+22572d0994593197593e2a1b7b18d720a9a349a7" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/lucaszanella/on_the_fly_swap
[INFO] finished tweaking git repo https://github.com/lucaszanella/on_the_fly_swap
[INFO] tweaked toml for git repo https://github.com/lucaszanella/on_the_fly_swap written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/lucaszanella/on_the_fly_swap already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+22572d0994593197593e2a1b7b18d720a9a349a7" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+22572d0994593197593e2a1b7b18d720a9a349a7" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1f5922816942b3bee83c391758951d403b384927f01285de88b761df52db934b
[INFO] running `Command { std: "docker" "start" "-a" "1f5922816942b3bee83c391758951d403b384927f01285de88b761df52db934b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1f5922816942b3bee83c391758951d403b384927f01285de88b761df52db934b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1f5922816942b3bee83c391758951d403b384927f01285de88b761df52db934b", kill_on_drop: false }`
[INFO] [stdout] 1f5922816942b3bee83c391758951d403b384927f01285de88b761df52db934b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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" "RUSTDOCFLAGS=--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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+22572d0994593197593e2a1b7b18d720a9a349a7" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c0f457da7e1ab4bf0608d1886971031e2f198e5fa1fee8e8a105e96c575512a5
[INFO] running `Command { std: "docker" "start" "-a" "c0f457da7e1ab4bf0608d1886971031e2f198e5fa1fee8e8a105e96c575512a5", kill_on_drop: false }`
[INFO] [stderr]     Checking on_the_fly_swap v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]    --> src/lib.rs:107:13
[INFO] [stdout]     |
[INFO] [stdout] 107 | /             /// If not using feature `parking_lot`, we emulate its behaviour
[INFO] [stdout] 108 | |             /// of not needing an unwrap. 
[INFO] [stdout] 109 | |             /// TODO: is this nice to do?
[INFO] [stdout]     | |_________________________________________^
[INFO] [stdout] 110 |               #[cfg(not(feature = "parking_lot"))]
[INFO] [stdout] 111 |               mutex_guard: self.inner.lock().unwrap(),
[INFO] [stdout]     |               --------------------------------------- rustdoc does not generate documentation for expression fields
[INFO] [stdout]     |
[INFO] [stdout]     = help: use `//` for a plain comment
[INFO] [stdout]     = note: `#[warn(unused_doc_comments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]    --> src/lib.rs:107:13
[INFO] [stdout]     |
[INFO] [stdout] 107 | /             /// If not using feature `parking_lot`, we emulate its behaviour
[INFO] [stdout] 108 | |             /// of not needing an unwrap. 
[INFO] [stdout] 109 | |             /// TODO: is this nice to do?
[INFO] [stdout]     | |_________________________________________^
[INFO] [stdout] 110 |               #[cfg(not(feature = "parking_lot"))]
[INFO] [stdout] 111 |               mutex_guard: self.inner.lock().unwrap(),
[INFO] [stdout]     |               --------------------------------------- rustdoc does not generate documentation for expression fields
[INFO] [stdout]     |
[INFO] [stdout]     = help: use `//` for a plain comment
[INFO] [stdout]     = note: `#[warn(unused_doc_comments)]` on by default
[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` profile [unoptimized + debuginfo] target(s) in 0.09s
[INFO] running `Command { std: "docker" "inspect" "c0f457da7e1ab4bf0608d1886971031e2f198e5fa1fee8e8a105e96c575512a5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c0f457da7e1ab4bf0608d1886971031e2f198e5fa1fee8e8a105e96c575512a5", kill_on_drop: false }`
[INFO] [stdout] c0f457da7e1ab4bf0608d1886971031e2f198e5fa1fee8e8a105e96c575512a5