[INFO] cloning repository https://github.com/wismer/rugit
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/wismer/rugit" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwismer%2Frugit", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwismer%2Frugit'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] bcefcf74a34d8baed4fba1840e67f3918e36ad4e
[INFO] checking wismer/rugit against master#dfd7b8d03fb93d0e03147d28b3be6d93260fa94d for pr-87050
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwismer%2Frugit" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/wismer/rugit on toolchain dfd7b8d03fb93d0e03147d28b3be6d93260fa94d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/wismer/rugit
[INFO] finished tweaking git repo https://github.com/wismer/rugit
[INFO] tweaked toml for git repo https://github.com/wismer/rugit written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/wismer/rugit already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 647e63da3df79859b7fe8432c574ca970efb3597920ff18d461870f53e57a5b1
[INFO] running `Command { std: "docker" "start" "-a" "647e63da3df79859b7fe8432c574ca970efb3597920ff18d461870f53e57a5b1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "647e63da3df79859b7fe8432c574ca970efb3597920ff18d461870f53e57a5b1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "647e63da3df79859b7fe8432c574ca970efb3597920ff18d461870f53e57a5b1", kill_on_drop: false }`
[INFO] [stdout] 647e63da3df79859b7fe8432c574ca970efb3597920ff18d461870f53e57a5b1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 92c6c262f5ef07db9640b2fe1bf5b83e35ce5964859f7f1c12f2b1a9e0c6ded7
[INFO] running `Command { std: "docker" "start" "-a" "92c6c262f5ef07db9640b2fe1bf5b83e35ce5964859f7f1c12f2b1a9e0c6ded7", kill_on_drop: false }`
[INFO] [stderr]    Compiling cc v1.0.37
[INFO] [stderr]    Compiling libc v0.2.55
[INFO] [stderr]     Checking cfg-if v0.1.9
[INFO] [stderr]     Checking crc32fast v1.2.0
[INFO] [stderr]    Compiling miniz-sys v0.1.12
[INFO] [stderr]     Checking flate2 v1.0.7
[INFO] [stderr]     Checking rugit v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: associated function is never used: `files`
[INFO] [stdout]   --> src/rugit/mod.rs:50:10
[INFO] [stdout]    |
[INFO] [stdout] 50 |         pub fn files(&self) -> std::io::Result<()> {
[INFO] [stdout]    |                ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `files`
[INFO] [stdout]   --> src/rugit/mod.rs:50:10
[INFO] [stdout]    |
[INFO] [stdout] 50 |         pub fn files(&self) -> std::io::Result<()> {
[INFO] [stdout]    |                ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.40s
[INFO] running `Command { std: "docker" "inspect" "92c6c262f5ef07db9640b2fe1bf5b83e35ce5964859f7f1c12f2b1a9e0c6ded7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "92c6c262f5ef07db9640b2fe1bf5b83e35ce5964859f7f1c12f2b1a9e0c6ded7", kill_on_drop: false }`
[INFO] [stdout] 92c6c262f5ef07db9640b2fe1bf5b83e35ce5964859f7f1c12f2b1a9e0c6ded7