[INFO] fetching crate mdmodels 0.1.1...
[INFO] checking mdmodels-0.1.1 against master#ab869e094a907cc5d19b4080f22eccaf347f1f95 for pr-129604
[INFO] extracting crate mdmodels 0.1.1 into /workspace/builds/worker-6-tc1/source
[INFO] validating manifest of crates.io crate mdmodels 0.1.1 on toolchain ab869e094a907cc5d19b4080f22eccaf347f1f95
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate mdmodels 0.1.1
[INFO] finished tweaking crates.io crate mdmodels 0.1.1
[INFO] tweaked toml for crates.io crate mdmodels 0.1.1 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate crates.io crate mdmodels 0.1.1 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" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 53439274167bc3bb44d17391f257afaced26bd17576cc26b66dcd0eeb6735466
[INFO] running `Command { std: "docker" "start" "-a" "53439274167bc3bb44d17391f257afaced26bd17576cc26b66dcd0eeb6735466", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "53439274167bc3bb44d17391f257afaced26bd17576cc26b66dcd0eeb6735466", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "53439274167bc3bb44d17391f257afaced26bd17576cc26b66dcd0eeb6735466", kill_on_drop: false }`
[INFO] [stdout] 53439274167bc3bb44d17391f257afaced26bd17576cc26b66dcd0eeb6735466
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 886d7c2d1a6c95717dda4a56ef38c84231165ce73a44a85a8e274cdeb4f2433c
[INFO] running `Command { std: "docker" "start" "-a" "886d7c2d1a6c95717dda4a56ef38c84231165ce73a44a85a8e274cdeb4f2433c", kill_on_drop: false }`
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[INFO] [stdout] warning: irrefutable `if let` pattern
[INFO] [stdout]    --> src/attribute.rs:206:19
[INFO] [stdout]     |
[INFO] [stdout] 206 |         } else if let Ok(s) = s.to_lowercase().parse::<String>() {
[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: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: irrefutable `if let` pattern
[INFO] [stdout]    --> src/attribute.rs:206:19
[INFO] [stdout]     |
[INFO] [stdout] 206 |         } else if let Ok(s) = s.to_lowercase().parse::<String>() {
[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: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 32.74s
[INFO] running `Command { std: "docker" "inspect" "886d7c2d1a6c95717dda4a56ef38c84231165ce73a44a85a8e274cdeb4f2433c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "886d7c2d1a6c95717dda4a56ef38c84231165ce73a44a85a8e274cdeb4f2433c", kill_on_drop: false }`
[INFO] [stdout] 886d7c2d1a6c95717dda4a56ef38c84231165ce73a44a85a8e274cdeb4f2433c