[INFO] fetching crate justshow 0.0.1...
[INFO] checking justshow-0.0.1 against master#350d0ef0ec0493e6d21cfb265cb8211a0e74d766 for pr-145342-1
[INFO] extracting crate justshow 0.0.1 into /workspace/builds/worker-1-tc1/source
[INFO] started tweaking crates.io crate justshow 0.0.1
[INFO] finished tweaking crates.io crate justshow 0.0.1
[INFO] tweaked toml for crates.io crate justshow 0.0.1 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate justshow 0.0.1 on toolchain 350d0ef0ec0493e6d21cfb265cb8211a0e74d766
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate justshow 0.0.1 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" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e4f6aa3a4d4c69f17531a30422b46f22e8e272aa420abbf7ad15abf7abeeb674
[INFO] running `Command { std: "docker" "start" "-a" "e4f6aa3a4d4c69f17531a30422b46f22e8e272aa420abbf7ad15abf7abeeb674", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e4f6aa3a4d4c69f17531a30422b46f22e8e272aa420abbf7ad15abf7abeeb674", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e4f6aa3a4d4c69f17531a30422b46f22e8e272aa420abbf7ad15abf7abeeb674", kill_on_drop: false }`
[INFO] [stdout] e4f6aa3a4d4c69f17531a30422b46f22e8e272aa420abbf7ad15abf7abeeb674
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e426d52170a4b9fe076b51b926b94dec8c9a84f75f68324c04af737fba333ef3
[INFO] running `Command { std: "docker" "start" "-a" "e426d52170a4b9fe076b51b926b94dec8c9a84f75f68324c04af737fba333ef3", kill_on_drop: false }`
[INFO] [stderr]     Checking justshow v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around closure body
[INFO] [stdout]   --> src/x11/xauth.rs:36:28
[INFO] [stdout]    |
[INFO] [stdout] 36 |             .map_err(|err| (Error::CouldNotReadXAuthFile(path.to_string(), err)))?;
[INFO] [stdout]    |                            ^                                                   ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 36 -             .map_err(|err| (Error::CouldNotReadXAuthFile(path.to_string(), err)))?;
[INFO] [stdout] 36 +             .map_err(|err| Error::CouldNotReadXAuthFile(path.to_string(), err))?;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around closure body
[INFO] [stdout]   --> src/x11/xauth.rs:36:28
[INFO] [stdout]    |
[INFO] [stdout] 36 |             .map_err(|err| (Error::CouldNotReadXAuthFile(path.to_string(), err)))?;
[INFO] [stdout]    |                            ^                                                   ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 36 -             .map_err(|err| (Error::CouldNotReadXAuthFile(path.to_string(), err)))?;
[INFO] [stdout] 36 +             .map_err(|err| Error::CouldNotReadXAuthFile(path.to_string(), err))?;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.10s
[INFO] running `Command { std: "docker" "inspect" "e426d52170a4b9fe076b51b926b94dec8c9a84f75f68324c04af737fba333ef3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e426d52170a4b9fe076b51b926b94dec8c9a84f75f68324c04af737fba333ef3", kill_on_drop: false }`
[INFO] [stdout] e426d52170a4b9fe076b51b926b94dec8c9a84f75f68324c04af737fba333ef3