[INFO] cloning repository https://github.com/DeltaManiac/deloop
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/DeltaManiac/deloop" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDeltaManiac%2Fdeloop", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDeltaManiac%2Fdeloop'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] bb2d8894bd5f80b4632ca5fd40b0b2979518e0c6
[INFO] checking DeltaManiac/deloop against master#33fdb797f59421c7bbecaa4588ed5d7a31a9494a for pr-87190-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDeltaManiac%2Fdeloop" "/workspace/builds/worker-5/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/DeltaManiac/deloop on toolchain 33fdb797f59421c7bbecaa4588ed5d7a31a9494a
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/DeltaManiac/deloop
[INFO] finished tweaking git repo https://github.com/DeltaManiac/deloop
[INFO] tweaked toml for git repo https://github.com/DeltaManiac/deloop written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/DeltaManiac/deloop already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1747a2416f1fa7fea806298fbc330fb089a299964b9ca0e5433edf52abaeb242
[INFO] running `Command { std: "docker" "start" "-a" "1747a2416f1fa7fea806298fbc330fb089a299964b9ca0e5433edf52abaeb242", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1747a2416f1fa7fea806298fbc330fb089a299964b9ca0e5433edf52abaeb242", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1747a2416f1fa7fea806298fbc330fb089a299964b9ca0e5433edf52abaeb242", kill_on_drop: false }`
[INFO] [stdout] 1747a2416f1fa7fea806298fbc330fb089a299964b9ca0e5433edf52abaeb242
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f9a4a9cebb45dfcba890144a78f4a48080cdde91d92ef3d2e5cec128fd128c8a
[INFO] running `Command { std: "docker" "start" "-a" "f9a4a9cebb45dfcba890144a78f4a48080cdde91d92ef3d2e5cec128fd128c8a", kill_on_drop: false }`
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[INFO] [stderr]     Checking deloop v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function is never used: `init`
[INFO] [stdout]  --> src/deloop.rs:7:4
[INFO] [stdout]   |
[INFO] [stdout] 7 | fn init() -> Result<()> {
[INFO] [stdout]   |    ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `init`
[INFO] [stdout]  --> src/deloop.rs:7:4
[INFO] [stdout]   |
[INFO] [stdout] 7 | fn init() -> Result<()> {
[INFO] [stdout]   |    ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `check`
[INFO] [stdout]   --> src/deloop.rs:31:4
[INFO] [stdout]    |
[INFO] [stdout] 31 | fn check(path: &str) -> Result<()> {
[INFO] [stdout]    |    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `backup`
[INFO] [stdout]   --> src/deloop.rs:38:4
[INFO] [stdout]    |
[INFO] [stdout] 38 | fn backup(path: &str) -> Result<()> {
[INFO] [stdout]    |    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 39.75s
[INFO] running `Command { std: "docker" "inspect" "f9a4a9cebb45dfcba890144a78f4a48080cdde91d92ef3d2e5cec128fd128c8a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f9a4a9cebb45dfcba890144a78f4a48080cdde91d92ef3d2e5cec128fd128c8a", kill_on_drop: false }`
[INFO] [stdout] f9a4a9cebb45dfcba890144a78f4a48080cdde91d92ef3d2e5cec128fd128c8a