[INFO] cloning repository https://github.com/thunderseethe/type-inference-example
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/thunderseethe/type-inference-example" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthunderseethe%2Ftype-inference-example", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthunderseethe%2Ftype-inference-example'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] af30598437923b8df8668a730c6788f557661631
[INFO] checking thunderseethe/type-inference-example against master#e1613686e0efc80a1a18b1263625450a8de3fb04 for pr-154492
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthunderseethe%2Ftype-inference-example" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }`
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[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/thunderseethe/type-inference-example
[INFO] finished tweaking git repo https://github.com/thunderseethe/type-inference-example
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[INFO] validating manifest of git repo https://github.com/thunderseethe/type-inference-example on toolchain e1613686e0efc80a1a18b1263625450a8de3fb04
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+e1613686e0efc80a1a18b1263625450a8de3fb04" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+e1613686e0efc80a1a18b1263625450a8de3fb04" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+e1613686e0efc80a1a18b1263625450a8de3fb04" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
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[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> simplify/base/src/lib.rs:264:6
[INFO] [stdout]     |
[INFO] [stdout] 264 |   Ty(&'a Type),
[INFO] [stdout]     |   -- ^^^^^^^^
[INFO] [stdout]     |   |
[INFO] [stdout]     |   field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]     |
[INFO] [stdout] 264 -   Ty(&'a Type),
[INFO] [stdout] 264 +   Ty(()),
[INFO] [stdout]     |
[INFO] [stdout] 
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[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> simplify/base/src/lib.rs:264:6
[INFO] [stdout]     |
[INFO] [stdout] 264 |   Ty(&'a Type),
[INFO] [stdout]     |   -- ^^^^^^^^
[INFO] [stdout]     |   |
[INFO] [stdout]     |   field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]     |
[INFO] [stdout] 264 -   Ty(&'a Type),
[INFO] [stdout] 264 +   Ty(()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
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[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3m 34s
[INFO] running `Command { std: "docker" "inspect" "92ae1a3f98683ce49845a01314ed69e5fbee87d1a1d8bf2de19145976f0cc96d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "92ae1a3f98683ce49845a01314ed69e5fbee87d1a1d8bf2de19145976f0cc96d", kill_on_drop: false }`
[INFO] [stdout] 92ae1a3f98683ce49845a01314ed69e5fbee87d1a1d8bf2de19145976f0cc96d