[INFO] cloning repository https://github.com/bon-chi/rust_who
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/bon-chi/rust_who" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbon-chi%2Frust_who", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbon-chi%2Frust_who'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d42e972b609c268e8e8b8da9d8d90b887c8719da
[INFO] testing bon-chi/rust_who against try#722e1797249a965b6335aebd65d777f917e498f1 for pr-91031
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbon-chi%2Frust_who" "/workspace/builds/worker-40/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-40/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/bon-chi/rust_who on toolchain 722e1797249a965b6335aebd65d777f917e498f1
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/bon-chi/rust_who
[INFO] finished tweaking git repo https://github.com/bon-chi/rust_who
[INFO] tweaked toml for git repo https://github.com/bon-chi/rust_who written to /workspace/builds/worker-40/source/Cargo.toml
[INFO] crate git repo https://github.com/bon-chi/rust_who already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "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-40/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-40/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f2241d382f72d67220055845a0c9b40665e94765307934b351178e9370c22092
[INFO] running `Command { std: "docker" "start" "-a" "f2241d382f72d67220055845a0c9b40665e94765307934b351178e9370c22092", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f2241d382f72d67220055845a0c9b40665e94765307934b351178e9370c22092", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f2241d382f72d67220055845a0c9b40665e94765307934b351178e9370c22092", kill_on_drop: false }`
[INFO] [stdout] f2241d382f72d67220055845a0c9b40665e94765307934b351178e9370c22092
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-40/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-40/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fca25f9458ca7a7ca0a797f843be8ba9dbedc89aa4405ea2fe9398e020f9181d
[INFO] running `Command { std: "docker" "start" "-a" "fca25f9458ca7a7ca0a797f843be8ba9dbedc89aa4405ea2fe9398e020f9181d", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.19
[INFO] [stderr]    Compiling rust_who v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around function argument
[INFO] [stdout]   --> src/main.rs:82:30
[INFO] [stdout]    |
[INFO] [stdout] 82 |            String::from_utf8((utmp_struct.ut_user.iter().map(|&x| x as u8).collect())).unwrap());
[INFO] [stdout]    |                              ^                                                      ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 82 -            String::from_utf8((utmp_struct.ut_user.iter().map(|&x| x as u8).collect())).unwrap());
[INFO] [stdout] 82 +            String::from_utf8(utmp_struct.ut_user.iter().map(|&x| x as u8).collect()).unwrap());
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around function argument
[INFO] [stdout]   --> src/main.rs:84:30
[INFO] [stdout]    |
[INFO] [stdout] 84 |            String::from_utf8((utmp_struct.ut_line.iter().map(|&x| x as u8).collect())).unwrap());
[INFO] [stdout]    |                              ^                                                      ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 84 -            String::from_utf8((utmp_struct.ut_line.iter().map(|&x| x as u8).collect())).unwrap());
[INFO] [stdout] 84 +            String::from_utf8(utmp_struct.ut_line.iter().map(|&x| x as u8).collect()).unwrap());
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around function argument
[INFO] [stdout]   --> src/main.rs:87:30
[INFO] [stdout]    |
[INFO] [stdout] 87 |            String::from_utf8((utmp_struct.ut_host.iter().map(|&x| x as u8).collect())).unwrap());
[INFO] [stdout]    |                              ^                                                      ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 87 -            String::from_utf8((utmp_struct.ut_host.iter().map(|&x| x as u8).collect())).unwrap());
[INFO] [stdout] 87 +            String::from_utf8(utmp_struct.ut_host.iter().map(|&x| x as u8).collect()).unwrap());
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 13.67s
[INFO] running `Command { std: "docker" "inspect" "fca25f9458ca7a7ca0a797f843be8ba9dbedc89aa4405ea2fe9398e020f9181d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fca25f9458ca7a7ca0a797f843be8ba9dbedc89aa4405ea2fe9398e020f9181d", kill_on_drop: false }`
[INFO] [stdout] fca25f9458ca7a7ca0a797f843be8ba9dbedc89aa4405ea2fe9398e020f9181d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-40/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-40/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7eefe179e6ae9018aef39eb31f389418739f4b2a660138ba7257dc9ed3347cab
[INFO] running `Command { std: "docker" "start" "-a" "7eefe179e6ae9018aef39eb31f389418739f4b2a660138ba7257dc9ed3347cab", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling rust_who v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around function argument
[INFO] [stdout]   --> src/main.rs:82:30
[INFO] [stdout]    |
[INFO] [stdout] 82 |            String::from_utf8((utmp_struct.ut_user.iter().map(|&x| x as u8).collect())).unwrap());
[INFO] [stdout]    |                              ^                                                      ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 82 -            String::from_utf8((utmp_struct.ut_user.iter().map(|&x| x as u8).collect())).unwrap());
[INFO] [stdout] 82 +            String::from_utf8(utmp_struct.ut_user.iter().map(|&x| x as u8).collect()).unwrap());
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around function argument
[INFO] [stdout]   --> src/main.rs:84:30
[INFO] [stdout]    |
[INFO] [stdout] 84 |            String::from_utf8((utmp_struct.ut_line.iter().map(|&x| x as u8).collect())).unwrap());
[INFO] [stdout]    |                              ^                                                      ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 84 -            String::from_utf8((utmp_struct.ut_line.iter().map(|&x| x as u8).collect())).unwrap());
[INFO] [stdout] 84 +            String::from_utf8(utmp_struct.ut_line.iter().map(|&x| x as u8).collect()).unwrap());
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around function argument
[INFO] [stdout]   --> src/main.rs:87:30
[INFO] [stdout]    |
[INFO] [stdout] 87 |            String::from_utf8((utmp_struct.ut_host.iter().map(|&x| x as u8).collect())).unwrap());
[INFO] [stdout]    |                              ^                                                      ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 87 -            String::from_utf8((utmp_struct.ut_host.iter().map(|&x| x as u8).collect())).unwrap());
[INFO] [stdout] 87 +            String::from_utf8(utmp_struct.ut_host.iter().map(|&x| x as u8).collect()).unwrap());
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.94s
[INFO] running `Command { std: "docker" "inspect" "7eefe179e6ae9018aef39eb31f389418739f4b2a660138ba7257dc9ed3347cab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7eefe179e6ae9018aef39eb31f389418739f4b2a660138ba7257dc9ed3347cab", kill_on_drop: false }`
[INFO] [stdout] 7eefe179e6ae9018aef39eb31f389418739f4b2a660138ba7257dc9ed3347cab
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-40/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-40/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 393cccd288ff5a4cbbc3185bf1a57c1d34222072417f151b83b993e68f91022b
[INFO] running `Command { std: "docker" "start" "-a" "393cccd288ff5a4cbbc3185bf1a57c1d34222072417f151b83b993e68f91022b", kill_on_drop: false }`
[INFO] [stderr] warning: unnecessary parentheses around function argument
[INFO] [stderr]   --> src/main.rs:82:30
[INFO] [stderr]    |
[INFO] [stderr] 82 |            String::from_utf8((utmp_struct.ut_user.iter().map(|&x| x as u8).collect())).unwrap());
[INFO] [stderr]    |                              ^                                                      ^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr] 82 -            String::from_utf8((utmp_struct.ut_user.iter().map(|&x| x as u8).collect())).unwrap());
[INFO] [stderr] 82 +            String::from_utf8(utmp_struct.ut_user.iter().map(|&x| x as u8).collect()).unwrap());
[INFO] [stderr]    | 
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around function argument
[INFO] [stderr]   --> src/main.rs:84:30
[INFO] [stderr]    |
[INFO] [stderr] 84 |            String::from_utf8((utmp_struct.ut_line.iter().map(|&x| x as u8).collect())).unwrap());
[INFO] [stderr]    |                              ^                                                      ^
[INFO] [stderr]    |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr] 84 -            String::from_utf8((utmp_struct.ut_line.iter().map(|&x| x as u8).collect())).unwrap());
[INFO] [stderr] 84 +            String::from_utf8(utmp_struct.ut_line.iter().map(|&x| x as u8).collect()).unwrap());
[INFO] [stderr]    | 
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around function argument
[INFO] [stderr]   --> src/main.rs:87:30
[INFO] [stderr]    |
[INFO] [stderr] 87 |            String::from_utf8((utmp_struct.ut_host.iter().map(|&x| x as u8).collect())).unwrap());
[INFO] [stderr]    |                              ^                                                      ^
[INFO] [stderr]    |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr] 87 -            String::from_utf8((utmp_struct.ut_host.iter().map(|&x| x as u8).collect())).unwrap());
[INFO] [stderr] 87 +            String::from_utf8(utmp_struct.ut_host.iter().map(|&x| x as u8).collect()).unwrap());
[INFO] [stderr]    | 
[INFO] [stderr] 
[INFO] [stderr] warning: `rust_who` (bin "rust_who" test) generated 3 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/rust_who-2df29ffdd81e22d6)
[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" "393cccd288ff5a4cbbc3185bf1a57c1d34222072417f151b83b993e68f91022b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "393cccd288ff5a4cbbc3185bf1a57c1d34222072417f151b83b993e68f91022b", kill_on_drop: false }`
[INFO] [stdout] 393cccd288ff5a4cbbc3185bf1a57c1d34222072417f151b83b993e68f91022b