[INFO] cloning repository https://github.com/0xnetero/sudoku-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/0xnetero/sudoku-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F0xnetero%2Fsudoku-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F0xnetero%2Fsudoku-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] fe29921346304443749231735b5ab5f4f4b6a959
[INFO] checking 0xnetero/sudoku-rs against master#c8551d3c63c51f290cf1dc9dc4714249ea849fd1 for pr-148946
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F0xnetero%2Fsudoku-rs" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/0xnetero/sudoku-rs
[INFO] finished tweaking git repo https://github.com/0xnetero/sudoku-rs
[INFO] tweaked toml for git repo https://github.com/0xnetero/sudoku-rs written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/0xnetero/sudoku-rs on toolchain c8551d3c63c51f290cf1dc9dc4714249ea849fd1
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c8551d3c63c51f290cf1dc9dc4714249ea849fd1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/0xnetero/sudoku-rs 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" "+c8551d3c63c51f290cf1dc9dc4714249ea849fd1" "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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded colored v2.2.0
[INFO] [stderr]   Downloaded zerocopy-derive v0.8.25
[INFO] [stderr]   Downloaded zerocopy v0.8.25
[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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c8551d3c63c51f290cf1dc9dc4714249ea849fd1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7fd0afba912975e067231e73d9449c8d8b3b1f31b09d454c641ed4f7a661960b
[INFO] running `Command { std: "docker" "start" "-a" "7fd0afba912975e067231e73d9449c8d8b3b1f31b09d454c641ed4f7a661960b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7fd0afba912975e067231e73d9449c8d8b3b1f31b09d454c641ed4f7a661960b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7fd0afba912975e067231e73d9449c8d8b3b1f31b09d454c641ed4f7a661960b", kill_on_drop: false }`
[INFO] [stdout] 7fd0afba912975e067231e73d9449c8d8b3b1f31b09d454c641ed4f7a661960b
[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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c8551d3c63c51f290cf1dc9dc4714249ea849fd1" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a9a4942b2a1535266422c991fc9fdfc29245414c3801fb03e61df8bd6c1e57ab
[INFO] running `Command { std: "docker" "start" "-a" "a9a4942b2a1535266422c991fc9fdfc29245414c3801fb03e61df8bd6c1e57ab", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.172
[INFO] [stderr]    Compiling zerocopy v0.8.25
[INFO] [stderr]     Checking colored v2.2.0
[INFO] [stderr]     Checking getrandom v0.2.16
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking ppv-lite86 v0.2.21
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking sudoku-rs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `Write` and `self`
[INFO] [stdout]  --> src/main.rs:5:15
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::io::{self, Write};
[INFO] [stdout]   |               ^^^^  ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Write` and `self`
[INFO] [stdout]  --> src/main.rs:5:15
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::io::{self, Write};
[INFO] [stdout]   |               ^^^^  ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.21s
[INFO] running `Command { std: "docker" "inspect" "a9a4942b2a1535266422c991fc9fdfc29245414c3801fb03e61df8bd6c1e57ab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a9a4942b2a1535266422c991fc9fdfc29245414c3801fb03e61df8bd6c1e57ab", kill_on_drop: false }`
[INFO] [stdout] a9a4942b2a1535266422c991fc9fdfc29245414c3801fb03e61df8bd6c1e57ab
