[INFO] cloning repository https://github.com/mikenomitch/tree
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mikenomitch/tree" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmikenomitch%2Ftree", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmikenomitch%2Ftree'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 13ac4d4ecc842e36eff91dfe41c2af2dca558416
[INFO] checking mikenomitch/tree against master#9ba3d315b4b2bea7485071eaf4b2681320cd2a27 for pr-124592
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmikenomitch%2Ftree" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mikenomitch/tree on toolchain 9ba3d315b4b2bea7485071eaf4b2681320cd2a27
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+9ba3d315b4b2bea7485071eaf4b2681320cd2a27" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/mikenomitch/tree
[INFO] finished tweaking git repo https://github.com/mikenomitch/tree
[INFO] tweaked toml for git repo https://github.com/mikenomitch/tree written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/mikenomitch/tree 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" "+9ba3d315b4b2bea7485071eaf4b2681320cd2a27" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:99613afd962a8cfa530ec1899472a458bd015a1ab0af876cf7eb06f6006d81ea" "/opt/rustwide/cargo-home/bin/cargo" "+9ba3d315b4b2bea7485071eaf4b2681320cd2a27" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a373f7cb7cb5024aa042c84e429116d6923d4e2742aa567d2350592b4cf32aed
[INFO] running `Command { std: "docker" "start" "-a" "a373f7cb7cb5024aa042c84e429116d6923d4e2742aa567d2350592b4cf32aed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a373f7cb7cb5024aa042c84e429116d6923d4e2742aa567d2350592b4cf32aed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a373f7cb7cb5024aa042c84e429116d6923d4e2742aa567d2350592b4cf32aed", kill_on_drop: false }`
[INFO] [stdout] a373f7cb7cb5024aa042c84e429116d6923d4e2742aa567d2350592b4cf32aed
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:99613afd962a8cfa530ec1899472a458bd015a1ab0af876cf7eb06f6006d81ea" "/opt/rustwide/cargo-home/bin/cargo" "+9ba3d315b4b2bea7485071eaf4b2681320cd2a27" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 49d3b50bd6fc3f40b43abbee5a96b7ccbdc5addeca6342deadc7e62da2172787
[INFO] running `Command { std: "docker" "start" "-a" "49d3b50bd6fc3f40b43abbee5a96b7ccbdc5addeca6342deadc7e62da2172787", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.47
[INFO] [stderr]     Checking lazy_static v1.2.0
[INFO] [stderr]     Checking colored v1.7.0
[INFO] [stderr]     Checking rand v0.4.5
[INFO] [stderr]     Checking rand v0.3.22
[INFO] [stderr]     Checking tree v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]  --> src/main.rs:7:27
[INFO] [stdout]   |
[INFO] [stdout] 7 | fn get_end(path: &str) -> (&str) {
[INFO] [stdout]   |                           ^    ^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]   |
[INFO] [stdout] 7 - fn get_end(path: &str) -> (&str) {
[INFO] [stdout] 7 + fn get_end(path: &str) -> &str {
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]  --> src/main.rs:7:27
[INFO] [stdout]   |
[INFO] [stdout] 7 | fn get_end(path: &str) -> (&str) {
[INFO] [stdout]   |                           ^    ^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]   |
[INFO] [stdout] 7 - fn get_end(path: &str) -> (&str) {
[INFO] [stdout] 7 + fn get_end(path: &str) -> &str {
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.70s
[INFO] running `Command { std: "docker" "inspect" "49d3b50bd6fc3f40b43abbee5a96b7ccbdc5addeca6342deadc7e62da2172787", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "49d3b50bd6fc3f40b43abbee5a96b7ccbdc5addeca6342deadc7e62da2172787", kill_on_drop: false }`
[INFO] [stdout] 49d3b50bd6fc3f40b43abbee5a96b7ccbdc5addeca6342deadc7e62da2172787