[INFO] fetching crate uao-rs 0.1.0...
[INFO] checking uao-rs-0.1.0 against master#642c19bfc3a5c1de985bf5d0cc8207ac9d22708a for pr-148577
[INFO] extracting crate uao-rs 0.1.0 into /workspace/builds/worker-4-tc1/source
[INFO] started tweaking crates.io crate uao-rs 0.1.0
[INFO] finished tweaking crates.io crate uao-rs 0.1.0
[INFO] tweaked toml for crates.io crate uao-rs 0.1.0 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate uao-rs 0.1.0 on toolchain 642c19bfc3a5c1de985bf5d0cc8207ac9d22708a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+642c19bfc3a5c1de985bf5d0cc8207ac9d22708a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+642c19bfc3a5c1de985bf5d0cc8207ac9d22708a" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 1 package to latest compatible version
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+642c19bfc3a5c1de985bf5d0cc8207ac9d22708a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+642c19bfc3a5c1de985bf5d0cc8207ac9d22708a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 80bb3bba5269c6cb32d7edcaa3dce46f106960cb5c93fdeb2deac3d4fb4a8484
[INFO] running `Command { std: "docker" "start" "-a" "80bb3bba5269c6cb32d7edcaa3dce46f106960cb5c93fdeb2deac3d4fb4a8484", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "80bb3bba5269c6cb32d7edcaa3dce46f106960cb5c93fdeb2deac3d4fb4a8484", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "80bb3bba5269c6cb32d7edcaa3dce46f106960cb5c93fdeb2deac3d4fb4a8484", kill_on_drop: false }`
[INFO] [stdout] 80bb3bba5269c6cb32d7edcaa3dce46f106960cb5c93fdeb2deac3d4fb4a8484
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+642c19bfc3a5c1de985bf5d0cc8207ac9d22708a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4438af4321837c143881a8a08110136bd6eb1b7d801de7c9c92e9ebeb51f9b6a
[INFO] running `Command { std: "docker" "start" "-a" "4438af4321837c143881a8a08110136bd6eb1b7d801de7c9c92e9ebeb51f9b6a", kill_on_drop: false }`
[INFO] [stderr]     Checking uao-rs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: irrefutable `if let` pattern
[INFO] [stdout]   --> src/lib.rs:63:19
[INFO] [stdout]    |
[INFO] [stdout] 63 |         } else if let Ok(b) = TryInto::<u32>::try_into(i) {
[INFO] [stdout]    |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this pattern will always match, so the `if let` is useless
[INFO] [stdout]    = help: consider replacing the `if let` with a `let`
[INFO] [stdout]    = note: `#[warn(irrefutable_let_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: irrefutable `if let` pattern
[INFO] [stdout]   --> src/lib.rs:63:19
[INFO] [stdout]    |
[INFO] [stdout] 63 |         } else if let Ok(b) = TryInto::<u32>::try_into(i) {
[INFO] [stdout]    |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this pattern will always match, so the `if let` is useless
[INFO] [stdout]    = help: consider replacing the `if let` with a `let`
[INFO] [stdout]    = note: `#[warn(irrefutable_let_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.09s
[INFO] running `Command { std: "docker" "inspect" "4438af4321837c143881a8a08110136bd6eb1b7d801de7c9c92e9ebeb51f9b6a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4438af4321837c143881a8a08110136bd6eb1b7d801de7c9c92e9ebeb51f9b6a", kill_on_drop: false }`
[INFO] [stdout] 4438af4321837c143881a8a08110136bd6eb1b7d801de7c9c92e9ebeb51f9b6a