[INFO] cloning repository https://github.com/nickexton/gh_art
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/nickexton/gh_art" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnickexton%2Fgh_art", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnickexton%2Fgh_art'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3101b2639432f47ff836176a480b2c5221838248
[INFO] checking nickexton/gh_art against try#45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4 for pr-83744
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnickexton%2Fgh_art" "/workspace/builds/worker-3/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/nickexton/gh_art on toolchain 45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/nickexton/gh_art
[INFO] finished tweaking git repo https://github.com/nickexton/gh_art
[INFO] tweaked toml for git repo https://github.com/nickexton/gh_art written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/nickexton/gh_art already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] error: the lock file /workspace/builds/worker-3/source/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] [stderr] If you want to try to generate the lock file without accessing the network, use the --offline flag.
[INFO] the lockfile is outdated, regenerating it
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded chrono v0.2.25
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 2eab33236f21b2b4bc5d8090ce7368a634a2412247114946a7e565779e1f0001
[INFO] running `Command { std: "docker" "start" "-a" "2eab33236f21b2b4bc5d8090ce7368a634a2412247114946a7e565779e1f0001", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2eab33236f21b2b4bc5d8090ce7368a634a2412247114946a7e565779e1f0001", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2eab33236f21b2b4bc5d8090ce7368a634a2412247114946a7e565779e1f0001", kill_on_drop: false }`
[INFO] [stdout] 2eab33236f21b2b4bc5d8090ce7368a634a2412247114946a7e565779e1f0001
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 0fa925922ba3cf48303de7b89db2e95d18a279174061c2f63f0b239eba42d6c6
[INFO] running `Command { std: "docker" "start" "-a" "0fa925922ba3cf48303de7b89db2e95d18a279174061c2f63f0b239eba42d6c6", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]     Checking num-iter v0.1.42
[INFO] [stderr]     Checking num v0.1.42
[INFO] [stderr]     Checking chrono v0.2.25
[INFO] [stderr]     Checking gh_art v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around function argument
[INFO] [stdout]   --> src/main.rs:47:45
[INFO] [stdout]    |
[INFO] [stdout] 47 |                 '.' | ' ' => poke_git(date, ((delta * 0) + 1)),
[INFO] [stdout]    |                                             ^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around function argument
[INFO] [stdout]   --> src/main.rs:48:45
[INFO] [stdout]    |
[INFO] [stdout] 48 |                 '+'       => poke_git(date, ((delta * 1) + 1)),
[INFO] [stdout]    |                                             ^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around function argument
[INFO] [stdout]   --> src/main.rs:49:45
[INFO] [stdout]    |
[INFO] [stdout] 49 |                 '*'       => poke_git(date, ((delta * 2) + 1)),
[INFO] [stdout]    |                                             ^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around function argument
[INFO] [stdout]   --> src/main.rs:50:45
[INFO] [stdout]    |
[INFO] [stdout] 50 |                 '#'       => poke_git(date, ((delta * 3) + 1)),
[INFO] [stdout]    |                                             ^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around function argument
[INFO] [stdout]   --> src/main.rs:47:45
[INFO] [stdout]    |
[INFO] [stdout] 47 |                 '.' | ' ' => poke_git(date, ((delta * 0) + 1)),
[INFO] [stdout]    |                                             ^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around function argument
[INFO] [stdout]   --> src/main.rs:48:45
[INFO] [stdout]    |
[INFO] [stdout] 48 |                 '+'       => poke_git(date, ((delta * 1) + 1)),
[INFO] [stdout]    |                                             ^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around function argument
[INFO] [stdout]   --> src/main.rs:49:45
[INFO] [stdout]    |
[INFO] [stdout] 49 |                 '*'       => poke_git(date, ((delta * 2) + 1)),
[INFO] [stdout]    |                                             ^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around function argument
[INFO] [stdout]   --> src/main.rs:50:45
[INFO] [stdout]    |
[INFO] [stdout] 50 |                 '#'       => poke_git(date, ((delta * 3) + 1)),
[INFO] [stdout]    |                                             ^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.59s
[INFO] running `Command { std: "docker" "inspect" "0fa925922ba3cf48303de7b89db2e95d18a279174061c2f63f0b239eba42d6c6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0fa925922ba3cf48303de7b89db2e95d18a279174061c2f63f0b239eba42d6c6", kill_on_drop: false }`
[INFO] [stdout] 0fa925922ba3cf48303de7b89db2e95d18a279174061c2f63f0b239eba42d6c6