[INFO] cloning repository https://github.com/KeenS/pattern-match-compile
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/KeenS/pattern-match-compile" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKeenS%2Fpattern-match-compile", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKeenS%2Fpattern-match-compile'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] fca6481b02c31c2507bda25e10949482e4384a2f
[INFO] checking KeenS/pattern-match-compile against master#8c6ce6b91b172f77c795a74bfeaf74b865146b3f for pr-101345
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKeenS%2Fpattern-match-compile" "/workspace/builds/worker-0/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/KeenS/pattern-match-compile on toolchain 8c6ce6b91b172f77c795a74bfeaf74b865146b3f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8c6ce6b91b172f77c795a74bfeaf74b865146b3f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/KeenS/pattern-match-compile
[INFO] finished tweaking git repo https://github.com/KeenS/pattern-match-compile
[INFO] tweaked toml for git repo https://github.com/KeenS/pattern-match-compile written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/KeenS/pattern-match-compile already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8c6ce6b91b172f77c795a74bfeaf74b865146b3f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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@sha256:824c28ce115f6b999260af6986f3384c158e782489540e41c0b698ca1d9fd927" "/opt/rustwide/cargo-home/bin/cargo" "+8c6ce6b91b172f77c795a74bfeaf74b865146b3f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0d166abfa39c5c0ae9eb555971dc9b491dc38cfba0a36c4341f661614a6ec15a
[INFO] running `Command { std: "docker" "start" "-a" "0d166abfa39c5c0ae9eb555971dc9b491dc38cfba0a36c4341f661614a6ec15a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0d166abfa39c5c0ae9eb555971dc9b491dc38cfba0a36c4341f661614a6ec15a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0d166abfa39c5c0ae9eb555971dc9b491dc38cfba0a36c4341f661614a6ec15a", kill_on_drop: false }`
[INFO] [stdout] 0d166abfa39c5c0ae9eb555971dc9b491dc38cfba0a36c4341f661614a6ec15a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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@sha256:824c28ce115f6b999260af6986f3384c158e782489540e41c0b698ca1d9fd927" "/opt/rustwide/cargo-home/bin/cargo" "+8c6ce6b91b172f77c795a74bfeaf74b865146b3f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2ef98acf49e517b5777adb375c342a2cd2085cc2d94e1b894f98636f25dea303
[INFO] running `Command { std: "docker" "start" "-a" "2ef98acf49e517b5777adb375c342a2cd2085cc2d94e1b894f98636f25dea303", kill_on_drop: false }`
[INFO] [stderr]     Checking pattern-match-compile v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `m`
[INFO] [stdout]     --> src/main.rs:1436:9
[INFO] [stdout]      |
[INFO] [stdout] 1436 |     let m = {
[INFO] [stdout]      |         ^ help: if this is intentional, prefix it with an underscore: `_m`
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `m`
[INFO] [stdout]     --> src/main.rs:1436:9
[INFO] [stdout]      |
[INFO] [stdout] 1436 |     let m = {
[INFO] [stdout]      |         ^ help: if this is intentional, prefix it with an underscore: `_m`
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `m3`
[INFO] [stdout]     --> src/main.rs:1578:9
[INFO] [stdout]      |
[INFO] [stdout] 1578 |     let m3 = {
[INFO] [stdout]      |         ^^ help: if this is intentional, prefix it with an underscore: `_m3`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `m3`
[INFO] [stdout]     --> src/main.rs:1578:9
[INFO] [stdout]      |
[INFO] [stdout] 1578 |     let m3 = {
[INFO] [stdout]      |         ^^ help: if this is intentional, prefix it with an underscore: `_m3`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `consv` is never used
[INFO] [stdout]     --> src/main.rs:1589:12
[INFO] [stdout]      |
[INFO] [stdout] 1589 |         fn consv(arg: Expr) -> Expr {
[INFO] [stdout]      |            ^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Symbol` is never constructed
[INFO] [stdout]   --> src/main.rs:63:9
[INFO] [stdout]    |
[INFO] [stdout] 48 |     pub enum Expr {
[INFO] [stdout]    |              ---- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 63 |         Symbol(Symbol),
[INFO] [stdout]    |         ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Expr` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Symbol` is never constructed
[INFO] [stdout]   --> src/main.rs:63:9
[INFO] [stdout]    |
[INFO] [stdout] 48 |     pub enum Expr {
[INFO] [stdout]    |              ---- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 63 |         Symbol(Symbol),
[INFO] [stdout]    |         ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout]    = note: `Expr` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.32s
[ERROR] error running command: no output for 300 seconds
[INFO] running `Command { std: "docker" "inspect" "2ef98acf49e517b5777adb375c342a2cd2085cc2d94e1b894f98636f25dea303", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2ef98acf49e517b5777adb375c342a2cd2085cc2d94e1b894f98636f25dea303", kill_on_drop: false }`
[INFO] [stdout] 2ef98acf49e517b5777adb375c342a2cd2085cc2d94e1b894f98636f25dea303