[INFO] cloning repository https://github.com/NicholasLYang/rust-ice-repro [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/NicholasLYang/rust-ice-repro" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNicholasLYang%2Frust-ice-repro", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNicholasLYang%2Frust-ice-repro'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] d91b159876b1332ba336af2d7ecdda4f57b403f8 [INFO] checking NicholasLYang/rust-ice-repro/d91b159876b1332ba336af2d7ecdda4f57b403f8 against master#ab869e094a907cc5d19b4080f22eccaf347f1f95 for pr-129604 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNicholasLYang%2Frust-ice-repro" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/NicholasLYang/rust-ice-repro 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 git repo https://github.com/NicholasLYang/rust-ice-repro [INFO] finished tweaking git repo https://github.com/NicholasLYang/rust-ice-repro [INFO] tweaked toml for git repo https://github.com/NicholasLYang/rust-ice-repro written to /workspace/builds/worker-2-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/NicholasLYang/rust-ice-repro 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 27d06b789091e4ef43e62dbf9d282c5864ba8550a10a56508b72511ee595df77 [INFO] running `Command { std: "docker" "start" "-a" "27d06b789091e4ef43e62dbf9d282c5864ba8550a10a56508b72511ee595df77", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "27d06b789091e4ef43e62dbf9d282c5864ba8550a10a56508b72511ee595df77", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "27d06b789091e4ef43e62dbf9d282c5864ba8550a10a56508b72511ee595df77", kill_on_drop: false }` [INFO] [stdout] 27d06b789091e4ef43e62dbf9d282c5864ba8550a10a56508b72511ee595df77 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 06e8f993418dc1a7070104551577ef447e6587ccf3e17d566d858a0be6c008ec [INFO] running `Command { std: "docker" "start" "-a" "06e8f993418dc1a7070104551577ef447e6587ccf3e17d566d858a0be6c008ec", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.76 [INFO] [stderr] Compiling libc v0.2.152 [INFO] [stderr] Compiling thiserror v1.0.56 [INFO] [stderr] Checking zerocopy v0.7.32 [INFO] [stderr] Checking allocator-api2 v0.2.16 [INFO] [stderr] Compiling serde v1.0.195 [INFO] [stderr] Checking unicode-width v0.1.11 [INFO] [stderr] Compiling ahash v0.8.7 [INFO] [stderr] Checking hashbrown v0.14.3 [INFO] [stderr] Compiling quote v1.0.35 [INFO] [stderr] Compiling syn v2.0.48 [INFO] [stderr] Compiling cc v1.0.83 [INFO] [stderr] Compiling psm v0.1.21 [INFO] [stderr] Compiling stacker v0.1.15 [INFO] [stderr] Compiling thiserror-impl v1.0.56 [INFO] [stderr] Compiling serde_derive v1.0.195 [INFO] [stderr] Compiling miette-derive v5.10.0 [INFO] [stderr] Checking chumsky v0.9.3 [INFO] [stderr] Checking miette v5.10.0 [INFO] [stderr] Checking ice-repro v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `Function` [INFO] [stdout] --> src/lib.rs:4:44 [INFO] [stdout] | [INFO] [stdout] 4 | BinaryOp, Expr, ExprBlock, ExprFields, Function, ImportType, MatchBindings, MatchCase, PostFix, [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `Function` [INFO] [stdout] --> src/lib.rs:4:44 [INFO] [stdout] | [INFO] [stdout] 4 | BinaryOp, Expr, ExprBlock, ExprFields, Function, ImportType, MatchBindings, MatchCase, PostFix, [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `function_parameters` [INFO] [stdout] --> src/lib.rs:446:13 [INFO] [stdout] | [INFO] [stdout] 446 | let function_parameters = ident [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_function_parameters` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `optional_return_type` [INFO] [stdout] --> src/lib.rs:460:13 [INFO] [stdout] | [INFO] [stdout] 460 | let optional_return_type = return_type.or(empty().to(None)); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_optional_return_type` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `type_parameters` [INFO] [stdout] --> src/lib.rs:579:13 [INFO] [stdout] | [INFO] [stdout] 579 | let type_parameters = ident [INFO] [stdout] | ^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_type_parameters` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `function_parameters` [INFO] [stdout] --> src/lib.rs:446:13 [INFO] [stdout] | [INFO] [stdout] 446 | let function_parameters = ident [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_function_parameters` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `optional_return_type` [INFO] [stdout] --> src/lib.rs:460:13 [INFO] [stdout] | [INFO] [stdout] 460 | let optional_return_type = return_type.or(empty().to(None)); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_optional_return_type` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `type_parameters` [INFO] [stdout] --> src/lib.rs:579:13 [INFO] [stdout] | [INFO] [stdout] 579 | let type_parameters = ident [INFO] [stdout] | ^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_type_parameters` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 17.37s [INFO] running `Command { std: "docker" "inspect" "06e8f993418dc1a7070104551577ef447e6587ccf3e17d566d858a0be6c008ec", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "06e8f993418dc1a7070104551577ef447e6587ccf3e17d566d858a0be6c008ec", kill_on_drop: false }` [INFO] [stdout] 06e8f993418dc1a7070104551577ef447e6587ccf3e17d566d858a0be6c008ec