[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] 821034045d1bee915c0dc39d01afcf958553d41a
[INFO] checking thunderseethe/type-inference-example against master#40daf23eeb711dadf140b2536e67e3ff4c999196 for pr-142287
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthunderseethe%2Ftype-inference-example" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/thunderseethe/type-inference-example on toolchain 40daf23eeb711dadf140b2536e67e3ff4c999196
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+40daf23eeb711dadf140b2536e67e3ff4c999196" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/thunderseethe/type-inference-example
[INFO] finished tweaking git repo https://github.com/thunderseethe/type-inference-example
[INFO] tweaked toml for git repo https://github.com/thunderseethe/type-inference-example written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/thunderseethe/type-inference-example 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" "+40daf23eeb711dadf140b2536e67e3ff4c999196" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded dissimilar v1.0.9
[INFO] [stderr]   Downloaded expect-test v1.5.1
[INFO] [stderr]   Downloaded log v0.4.26
[INFO] [stderr]   Downloaded diff v0.1.13
[INFO] [stderr]   Downloaded pretty_assertions v1.4.1
[INFO] [stderr]   Downloaded ena v0.14.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:eea15d5475069c3ef791f10c2c6b5af2ee421ef2da1e680ecce1cba46243983b" "/opt/rustwide/cargo-home/bin/cargo" "+40daf23eeb711dadf140b2536e67e3ff4c999196" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 10e28b269c1183b1d7c9604be3643e8dd073ebda43b7daef9fab9ccccf59bd23
[INFO] running `Command { std: "docker" "start" "-a" "10e28b269c1183b1d7c9604be3643e8dd073ebda43b7daef9fab9ccccf59bd23", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "10e28b269c1183b1d7c9604be3643e8dd073ebda43b7daef9fab9ccccf59bd23", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "10e28b269c1183b1d7c9604be3643e8dd073ebda43b7daef9fab9ccccf59bd23", kill_on_drop: false }`
[INFO] [stdout] 10e28b269c1183b1d7c9604be3643e8dd073ebda43b7daef9fab9ccccf59bd23
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:eea15d5475069c3ef791f10c2c6b5af2ee421ef2da1e680ecce1cba46243983b" "/opt/rustwide/cargo-home/bin/cargo" "+40daf23eeb711dadf140b2536e67e3ff4c999196" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4929818b197739ca626b03a45a2c8035e387ef1852e0a2b354dbc8fcfdc68722
[INFO] running `Command { std: "docker" "start" "-a" "4929818b197739ca626b03a45a2c8035e387ef1852e0a2b354dbc8fcfdc68722", kill_on_drop: false }`
[INFO] [stderr]    Compiling typenum v1.18.0
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking log v0.4.26
[INFO] [stderr]     Checking typed-arena v2.0.2
[INFO] [stderr]     Checking arrayvec v0.5.2
[INFO] [stderr]     Checking unicode-width v0.1.14
[INFO] [stderr]     Checking once_cell v1.20.3
[INFO] [stderr]     Checking dissimilar v1.0.9
[INFO] [stderr]     Checking diff v0.1.13
[INFO] [stderr]     Checking yansi v1.0.1
[INFO] [stderr]     Checking type-inference v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling im v15.1.0
[INFO] [stderr]     Checking rand_xoshiro v0.6.0
[INFO] [stderr]     Checking ena v0.14.3
[INFO] [stderr]     Checking pretty_assertions v1.4.1
[INFO] [stderr]     Checking expect-test v1.5.1
[INFO] [stderr]     Checking pretty v0.12.3
[INFO] [stderr]     Checking bitmaps v2.1.0
[INFO] [stderr]     Checking sized-chunks v0.6.5
[INFO] [stderr]     Checking types-base v0.1.0 (/opt/rustwide/workdir/types/base)
[INFO] [stderr]     Checking types-items v0.1.0 (/opt/rustwide/workdir/types/items)
[INFO] [stderr]     Checking types-rows v0.1.0 (/opt/rustwide/workdir/types/rows)
[INFO] [stderr]     Checking lowering-base v0.1.0 (/opt/rustwide/workdir/lowering/base)
[INFO] [stderr]     Checking simplify-base v0.1.0 (/opt/rustwide/workdir/simplify/base)
[INFO] [stderr]     Checking lowering-rows v0.1.0 (/opt/rustwide/workdir/lowering/rows)
[INFO] [stderr]     Checking lowering-items v0.1.0 (/opt/rustwide/workdir/lowering/items)
[INFO] [stdout] warning: unreachable statement
[INFO] [stdout]    --> simplify/base/src/lib.rs:668:5
[INFO] [stdout]     |
[INFO] [stdout] 666 |     panic!("fail me");
[INFO] [stdout]     |     ----------------- any code following this expression is unreachable
[INFO] [stdout] 667 |
[INFO] [stdout] 668 |     let expect = expect_test::expect!["1"];
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ unreachable statement
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unreachable_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ir`
[INFO] [stdout]    --> simplify/base/src/lib.rs:664:9
[INFO] [stdout]     |
[INFO] [stdout] 664 |     let ir = simplify(ast);
[INFO] [stdout]     |         ^^ help: if this is intentional, prefix it with an underscore: `_ir`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> simplify/base/src/lib.rs:266:6
[INFO] [stdout]     |
[INFO] [stdout] 266 |   Ty(&'a Type),
[INFO] [stdout]     |   -- ^^^^^^^^
[INFO] [stdout]     |   |
[INFO] [stdout]     |   field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` 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] 266 -   Ty(&'a Type),
[INFO] [stdout] 266 +   Ty(()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> simplify/base/src/lib.rs:266:6
[INFO] [stdout]     |
[INFO] [stdout] 266 |   Ty(&'a Type),
[INFO] [stdout]     |   -- ^^^^^^^^
[INFO] [stdout]     |   |
[INFO] [stdout]     |   field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` 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] 266 -   Ty(&'a Type),
[INFO] [stdout] 266 +   Ty(()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking monomorph-base v0.1.0 (/opt/rustwide/workdir/monomorph/base)
[INFO] [stderr]     Checking closure-convert-base v0.1.0 (/opt/rustwide/workdir/closure_convert/base)
[INFO] [stdout] warning: unused import: `super::*`
[INFO] [stdout]   --> monomorph/base/src/lib.rs:34:7
[INFO] [stdout]    |
[INFO] [stdout] 34 |   use super::*;
[INFO] [stdout]    |       ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.84s
[INFO] running `Command { std: "docker" "inspect" "4929818b197739ca626b03a45a2c8035e387ef1852e0a2b354dbc8fcfdc68722", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4929818b197739ca626b03a45a2c8035e387ef1852e0a2b354dbc8fcfdc68722", kill_on_drop: false }`
[INFO] [stdout] 4929818b197739ca626b03a45a2c8035e387ef1852e0a2b354dbc8fcfdc68722