[INFO] fetching crate traced_result 0.1.0...
[INFO] checking traced_result-0.1.0 against master#1f12b9b0fdbe735968ac002792a720f0ba4faca6 for crater-rollup-uwu
[INFO] extracting crate traced_result 0.1.0 into /workspace/builds/worker-2-tc1/source
[INFO] validating manifest of crates.io crate traced_result 0.1.0 on toolchain 1f12b9b0fdbe735968ac002792a720f0ba4faca6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate traced_result 0.1.0
[INFO] finished tweaking crates.io crate traced_result 0.1.0
[INFO] tweaked toml for crates.io crate traced_result 0.1.0 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "generate-lockfile" "--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: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c74900b13b77c5f485f21a2d6c231cbf8de10a8354d9765119af57b16f4ad8da
[INFO] running `Command { std: "docker" "start" "-a" "c74900b13b77c5f485f21a2d6c231cbf8de10a8354d9765119af57b16f4ad8da", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c74900b13b77c5f485f21a2d6c231cbf8de10a8354d9765119af57b16f4ad8da", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c74900b13b77c5f485f21a2d6c231cbf8de10a8354d9765119af57b16f4ad8da", kill_on_drop: false }`
[INFO] [stdout] c74900b13b77c5f485f21a2d6c231cbf8de10a8354d9765119af57b16f4ad8da
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 998d10d1a69bb0c58316f08e54f2afa804b380d35840dfc6554a584838c53a14
[INFO] running `Command { std: "docker" "start" "-a" "998d10d1a69bb0c58316f08e54f2afa804b380d35840dfc6554a584838c53a14", kill_on_drop: false }`
[INFO] [stderr]     Checking traced_result v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/lib.rs:236:13
[INFO] [stdout]     |
[INFO] [stdout] 232 |             TracedResult::Err(TracedError { trace, inner }) => TracedResult::Err(TracedError {
[INFO] [stdout]     |             ----------------------------------------------- matches all the relevant values
[INFO] [stdout] ...
[INFO] [stdout] 236 |             _ => unreachable!(),
[INFO] [stdout]     |             ^ no value can reach this
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/lib.rs:236:13
[INFO] [stdout]     |
[INFO] [stdout] 232 |             TracedResult::Err(TracedError { trace, inner }) => TracedResult::Err(TracedError {
[INFO] [stdout]     |             ----------------------------------------------- matches all the relevant values
[INFO] [stdout] ...
[INFO] [stdout] 236 |             _ => unreachable!(),
[INFO] [stdout]     |             ^ no value can reach this
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unreachable_patterns)]` on by default
[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 0.11s
[INFO] running `Command { std: "docker" "inspect" "998d10d1a69bb0c58316f08e54f2afa804b380d35840dfc6554a584838c53a14", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "998d10d1a69bb0c58316f08e54f2afa804b380d35840dfc6554a584838c53a14", kill_on_drop: false }`
[INFO] [stdout] 998d10d1a69bb0c58316f08e54f2afa804b380d35840dfc6554a584838c53a14