[INFO] fetching crate justshow 0.0.1...
[INFO] testing justshow-0.0.1 against master#562dee4820c458d823175268e41601d4c060588a for pr-154210-1
[INFO] extracting crate justshow 0.0.1 into /workspace/builds/worker-4-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-4-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate justshow 0.0.1 on toolchain 562dee4820c458d823175268e41601d4c060588a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "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" "+562dee4820c458d823175268e41601d4c060588a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c1f38a8d332e9ef69084d33310e6aa2e8cc3245151530faed439f8190005d609
[INFO] running `Command { std: "docker" "start" "-a" "c1f38a8d332e9ef69084d33310e6aa2e8cc3245151530faed439f8190005d609", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c1f38a8d332e9ef69084d33310e6aa2e8cc3245151530faed439f8190005d609", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c1f38a8d332e9ef69084d33310e6aa2e8cc3245151530faed439f8190005d609", kill_on_drop: false }`
[INFO] [stdout] c1f38a8d332e9ef69084d33310e6aa2e8cc3245151530faed439f8190005d609
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 47efe71901a7712529e9acfe5446aba980ae8e29b90a795d7564dca1a5395072
[INFO] running `Command { std: "docker" "start" "-a" "47efe71901a7712529e9acfe5446aba980ae8e29b90a795d7564dca1a5395072", kill_on_drop: false }`
[INFO] [stderr]    Compiling 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)]` (part of `#[warn(unused)]`) 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 3.25s
[INFO] running `Command { std: "docker" "inspect" "47efe71901a7712529e9acfe5446aba980ae8e29b90a795d7564dca1a5395072", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "47efe71901a7712529e9acfe5446aba980ae8e29b90a795d7564dca1a5395072", kill_on_drop: false }`
[INFO] [stdout] 47efe71901a7712529e9acfe5446aba980ae8e29b90a795d7564dca1a5395072
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9a2c54501ff037c1b1895efeec8754b1b8d9279708cafb1f7bd249a6037227ea
[INFO] running `Command { std: "docker" "start" "-a" "9a2c54501ff037c1b1895efeec8754b1b8d9279708cafb1f7bd249a6037227ea", kill_on_drop: false }`
[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)]` (part of `#[warn(unused)]`) 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]    Compiling 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)]` (part of `#[warn(unused)]`) 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 `test` profile [unoptimized + debuginfo] target(s) in 2.24s
[INFO] running `Command { std: "docker" "inspect" "9a2c54501ff037c1b1895efeec8754b1b8d9279708cafb1f7bd249a6037227ea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9a2c54501ff037c1b1895efeec8754b1b8d9279708cafb1f7bd249a6037227ea", kill_on_drop: false }`
[INFO] [stdout] 9a2c54501ff037c1b1895efeec8754b1b8d9279708cafb1f7bd249a6037227ea
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 82ae4b9fc3cadddf9b73d3e11af496e7911212c1527c76722d909f06506c4459
[INFO] running `Command { std: "docker" "start" "-a" "82ae4b9fc3cadddf9b73d3e11af496e7911212c1527c76722d909f06506c4459", kill_on_drop: false }`
[INFO] [stderr] warning: unnecessary parentheses around closure body
[INFO] [stderr]   --> src/x11/xauth.rs:36:28
[INFO] [stderr]    |
[INFO] [stderr] 36 |             .map_err(|err| (Error::CouldNotReadXAuthFile(path.to_string(), err)))?;
[INFO] [stderr]    |                            ^                                                   ^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr] 36 -             .map_err(|err| (Error::CouldNotReadXAuthFile(path.to_string(), err)))?;
[INFO] [stderr] 36 +             .map_err(|err| Error::CouldNotReadXAuthFile(path.to_string(), err) )?;
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: `justshow` (lib) generated 1 warning (run `cargo fix --lib -p justshow` to apply 1 suggestion)
[INFO] [stderr] warning: `justshow` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/justshow-85fb79e67b6220e4)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test x11::list_of_str_roundtrip ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/bin/pong.rs (/opt/rustwide/target/debug/deps/pong-2c55a92bd98545a3)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/bin/xlsfonts.rs (/opt/rustwide/target/debug/deps/xlsfonts-719447f1f081ca24)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests justshow
[INFO] [stderr] warning: unnecessary parentheses around closure body
[INFO] [stderr]   --> src/x11/xauth.rs:36:28
[INFO] [stderr]    |
[INFO] [stderr] 36 |             .map_err(|err| (Error::CouldNotReadXAuthFile(path.to_string(), err)))?;
[INFO] [stderr]    |                            ^                                                   ^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr] 36 -             .map_err(|err| (Error::CouldNotReadXAuthFile(path.to_string(), err)))?;
[INFO] [stderr] 36 +             .map_err(|err| Error::CouldNotReadXAuthFile(path.to_string(), err) )?;
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "82ae4b9fc3cadddf9b73d3e11af496e7911212c1527c76722d909f06506c4459", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "82ae4b9fc3cadddf9b73d3e11af496e7911212c1527c76722d909f06506c4459", kill_on_drop: false }`
[INFO] [stdout] 82ae4b9fc3cadddf9b73d3e11af496e7911212c1527c76722d909f06506c4459