[INFO] cloning repository https://github.com/drizzlevanta/patterns_matching
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/drizzlevanta/patterns_matching" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdrizzlevanta%2Fpatterns_matching", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdrizzlevanta%2Fpatterns_matching'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7b67755fc6f880b25312217b395e64fb2fff8bb9
[INFO] checking drizzlevanta/patterns_matching against try#73ffebff6f34db7eb167bf9edcf2afa19c3073e9 for pr-147841
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdrizzlevanta%2Fpatterns_matching" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/drizzlevanta/patterns_matching
[INFO] finished tweaking git repo https://github.com/drizzlevanta/patterns_matching
[INFO] tweaked toml for git repo https://github.com/drizzlevanta/patterns_matching written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/drizzlevanta/patterns_matching on toolchain 73ffebff6f34db7eb167bf9edcf2afa19c3073e9
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+73ffebff6f34db7eb167bf9edcf2afa19c3073e9" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/drizzlevanta/patterns_matching 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" "+73ffebff6f34db7eb167bf9edcf2afa19c3073e9" "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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+73ffebff6f34db7eb167bf9edcf2afa19c3073e9" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 883424ef64987e5b5cee881b73d144ac295fe1e17f71a25bcffc0e1017791fdb
[INFO] running `Command { std: "docker" "start" "-a" "883424ef64987e5b5cee881b73d144ac295fe1e17f71a25bcffc0e1017791fdb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "883424ef64987e5b5cee881b73d144ac295fe1e17f71a25bcffc0e1017791fdb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "883424ef64987e5b5cee881b73d144ac295fe1e17f71a25bcffc0e1017791fdb", kill_on_drop: false }`
[INFO] [stdout] 883424ef64987e5b5cee881b73d144ac295fe1e17f71a25bcffc0e1017791fdb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+73ffebff6f34db7eb167bf9edcf2afa19c3073e9" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 65dbb3fe3e63a45641a048d3238074926f0447c5367a9e90fd1eeafb4fe09ff9
[INFO] running `Command { std: "docker" "start" "-a" "65dbb3fe3e63a45641a048d3238074926f0447c5367a9e90fd1eeafb4fe09ff9", kill_on_drop: false }`
[INFO] [stderr]     Checking patterns_matching v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variants `Nickle` and `Other` are never constructed
[INFO] [stdout]   --> src/main.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 18 | enum Coin {
[INFO] [stdout]    |      ---- variants in this enum
[INFO] [stdout] 19 |     Penny,
[INFO] [stdout] 20 |     Nickle,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 23 |     Other,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `AL`, `NY`, `AK`, and `VA` are never constructed
[INFO] [stdout]   --> src/main.rs:28:5
[INFO] [stdout]    |
[INFO] [stdout] 27 | enum UsState {
[INFO] [stdout]    |      ------- variants in this enum
[INFO] [stdout] 28 |     AL,
[INFO] [stdout]    |     ^^
[INFO] [stdout] 29 |     NY,
[INFO] [stdout]    |     ^^
[INFO] [stdout] 30 |     AK,
[INFO] [stdout]    |     ^^
[INFO] [stdout] 31 |     DC,
[INFO] [stdout] 32 |     VA,
[INFO] [stdout]    |     ^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `UsState` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Nickle` and `Other` are never constructed
[INFO] [stdout]   --> src/main.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 18 | enum Coin {
[INFO] [stdout]    |      ---- variants in this enum
[INFO] [stdout] 19 |     Penny,
[INFO] [stdout] 20 |     Nickle,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 23 |     Other,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `AL`, `NY`, `AK`, and `VA` are never constructed
[INFO] [stdout]   --> src/main.rs:28:5
[INFO] [stdout]    |
[INFO] [stdout] 27 | enum UsState {
[INFO] [stdout]    |      ------- variants in this enum
[INFO] [stdout] 28 |     AL,
[INFO] [stdout]    |     ^^
[INFO] [stdout] 29 |     NY,
[INFO] [stdout]    |     ^^
[INFO] [stdout] 30 |     AK,
[INFO] [stdout]    |     ^^
[INFO] [stdout] 31 |     DC,
[INFO] [stdout] 32 |     VA,
[INFO] [stdout]    |     ^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `UsState` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.05s
[INFO] running `Command { std: "docker" "inspect" "65dbb3fe3e63a45641a048d3238074926f0447c5367a9e90fd1eeafb4fe09ff9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "65dbb3fe3e63a45641a048d3238074926f0447c5367a9e90fd1eeafb4fe09ff9", kill_on_drop: false }`
[INFO] [stdout] 65dbb3fe3e63a45641a048d3238074926f0447c5367a9e90fd1eeafb4fe09ff9