[INFO] fetching crate deskc-typeinfer 0.0.0...
[INFO] checking deskc-typeinfer-0.0.0 against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] extracting crate deskc-typeinfer 0.0.0 into /workspace/builds/worker-3-tc1/source
[INFO] validating manifest of crates.io crate deskc-typeinfer 0.0.0 on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate deskc-typeinfer 0.0.0
[INFO] finished tweaking crates.io crate deskc-typeinfer 0.0.0
[INFO] tweaked toml for crates.io crate deskc-typeinfer 0.0.0 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 33 packages
[INFO] [stderr]       Adding ahash v0.3.8 (latest: v0.8.11)
[INFO] [stderr]       Adding ariadne v0.1.5 (latest: v0.4.0)
[INFO] [stderr]       Adding chumsky v0.8.0 (latest: v0.9.3)
[INFO] [stderr]       Adding uuid v0.8.2 (latest: v1.8.0)
[INFO] [stderr]       Adding wasi v0.11.0+wasi-snapshot-preview1 (latest: v0.13.0+wasi-0.2.0)
[INFO] [stderr]       Adding yansi v0.5.1 (latest: v1.0.1)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded deskc-ast v0.0.0
[INFO] [stderr]   Downloaded deskc-types v0.0.0
[INFO] [stderr]   Downloaded ahash v0.3.8
[INFO] [stderr]   Downloaded deskc-tokens v0.0.0
[INFO] [stderr]   Downloaded chumsky v0.8.0
[INFO] [stderr]   Downloaded deskc-link v0.0.0
[INFO] [stderr]   Downloaded ariadne v0.1.5
[INFO] [stderr]   Downloaded deskc-file v0.0.0
[INFO] [stderr]   Downloaded deskc-hir v0.0.0
[INFO] [stderr]   Downloaded deskc-hirgen v0.0.0
[INFO] [stderr]   Downloaded deskc-lexer v0.0.0
[INFO] [stderr]   Downloaded deskc-parser v0.0.0
[INFO] [stderr]   Downloaded deskc-textual-diagnostics v0.0.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8585b056011445904ca10c9b3564486f75a62fc3121a9fc309893267389ec9a4
[INFO] running `Command { std: "docker" "start" "-a" "8585b056011445904ca10c9b3564486f75a62fc3121a9fc309893267389ec9a4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8585b056011445904ca10c9b3564486f75a62fc3121a9fc309893267389ec9a4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8585b056011445904ca10c9b3564486f75a62fc3121a9fc309893267389ec9a4", kill_on_drop: false }`
[INFO] [stdout] 8585b056011445904ca10c9b3564486f75a62fc3121a9fc309893267389ec9a4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 602735dfe0ae064554309e7290421c5e960b65cbd02dfb41cb7106bca04dbefd
[INFO] running `Command { std: "docker" "start" "-a" "602735dfe0ae064554309e7290421c5e960b65cbd02dfb41cb7106bca04dbefd", kill_on_drop: false }`
[INFO] [stderr]    Compiling crunchy v0.2.2
[INFO] [stderr]    Compiling libc v0.2.153
[INFO] [stderr]     Checking uuid v0.8.2
[INFO] [stderr]    Compiling tiny-keccak v2.0.2
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling once_cell v1.19.0
[INFO] [stderr]     Checking deskc-file v0.0.0
[INFO] [stderr]     Checking deskc-textual-diagnostics v0.0.0
[INFO] [stderr]     Checking deskc-types v0.0.0
[INFO] [stderr]     Checking ariadne v0.1.5
[INFO] [stderr]    Compiling syn v2.0.58
[INFO] [stderr]     Checking deskc-link v0.0.0
[INFO] [stderr]     Checking deskc-tokens v0.0.0
[INFO] [stderr]     Checking deskc-hir v0.0.0
[INFO] [stderr]     Checking deskc-ast v0.0.0
[INFO] [stderr]    Compiling getrandom v0.2.12
[INFO] [stderr]    Compiling const-random-macro v0.1.16
[INFO] [stderr]     Checking const-random v0.1.18
[INFO] [stderr]     Checking ahash v0.3.8
[INFO] [stderr]     Checking chumsky v0.8.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.58
[INFO] [stderr]     Checking deskc-lexer v0.0.0
[INFO] [stderr]     Checking deskc-parser v0.0.0
[INFO] [stderr]     Checking thiserror v1.0.58
[INFO] [stderr]     Checking deskc-hirgen v0.0.0
[INFO] [stderr]     Checking deskc-typeinfer v0.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `Effect` is imported redundantly
[INFO] [stdout]    --> src/ty/effect_expr.rs:165:21
[INFO] [stdout]     |
[INFO] [stdout] 165 |     use crate::ty::{Effect, Type};
[INFO] [stdout]     |                     ^^^^^^
[INFO] [stdout] 166 |
[INFO] [stdout] 167 |     use super::*;
[INFO] [stdout]     |         -------- the item `Effect` is already imported here
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Type` is imported redundantly
[INFO] [stdout]    --> src/ty/effect_expr.rs:165:29
[INFO] [stdout]     |
[INFO] [stdout] 165 |     use crate::ty::{Effect, Type};
[INFO] [stdout]     |                             ^^^^
[INFO] [stdout] 166 |
[INFO] [stdout] 167 |     use super::*;
[INFO] [stdout]     |         -------- the item `Type` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Ctx` is imported redundantly
[INFO] [stdout]   --> src/lib.rs:54:9
[INFO] [stdout]    |
[INFO] [stdout] 54 |         ctx::Ctx,
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 58 |     use super::*;
[INFO] [stdout]    |         -------- the item `Ctx` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.40s
[INFO] running `Command { std: "docker" "inspect" "602735dfe0ae064554309e7290421c5e960b65cbd02dfb41cb7106bca04dbefd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "602735dfe0ae064554309e7290421c5e960b65cbd02dfb41cb7106bca04dbefd", kill_on_drop: false }`
[INFO] [stdout] 602735dfe0ae064554309e7290421c5e960b65cbd02dfb41cb7106bca04dbefd