[INFO] cloning repository https://github.com/nevakrien/hindley_milner [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/nevakrien/hindley_milner" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnevakrien%2Fhindley_milner", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnevakrien%2Fhindley_milner'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] a30fe44fe14712b300fae1fab0e568002389a44d [INFO] checking nevakrien/hindley_milner against master#642c19bfc3a5c1de985bf5d0cc8207ac9d22708a for pr-148577 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnevakrien%2Fhindley_milner" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'... [INFO] [stderr] done. [INFO] started tweaking git repo https://github.com/nevakrien/hindley_milner [INFO] finished tweaking git repo https://github.com/nevakrien/hindley_milner [INFO] tweaked toml for git repo https://github.com/nevakrien/hindley_milner written to /workspace/builds/worker-5-tc1/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/nevakrien/hindley_milner on toolchain 642c19bfc3a5c1de985bf5d0cc8207ac9d22708a [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+642c19bfc3a5c1de985bf5d0cc8207ac9d22708a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate git repo https://github.com/nevakrien/hindley_milner 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" "+642c19bfc3a5c1de985bf5d0cc8207ac9d22708a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+642c19bfc3a5c1de985bf5d0cc8207ac9d22708a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] e3dce78ab46f6277ce1d22032f7bb8948f1e1b28889612eb68b382bda4b5477e [INFO] running `Command { std: "docker" "start" "-a" "e3dce78ab46f6277ce1d22032f7bb8948f1e1b28889612eb68b382bda4b5477e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "e3dce78ab46f6277ce1d22032f7bb8948f1e1b28889612eb68b382bda4b5477e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e3dce78ab46f6277ce1d22032f7bb8948f1e1b28889612eb68b382bda4b5477e", kill_on_drop: false }` [INFO] [stdout] e3dce78ab46f6277ce1d22032f7bb8948f1e1b28889612eb68b382bda4b5477e [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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+642c19bfc3a5c1de985bf5d0cc8207ac9d22708a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] a9ef70265e4fad62a4cb22834a0065cedfe278383d37886f865b0c22ab6c5df3 [INFO] running `Command { std: "docker" "start" "-a" "a9ef70265e4fad62a4cb22834a0065cedfe278383d37886f865b0c22ab6c5df3", kill_on_drop: false }` [INFO] [stderr] Compiling im v15.1.0 [INFO] [stderr] Checking rand_xoshiro v0.6.0 [INFO] [stderr] Checking hindley_milner v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `std::ffi::c_void` [INFO] [stdout] --> src/expression.rs:4:5 [INFO] [stdout] | [INFO] [stdout] 4 | use std::ffi::c_void; [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `crate::types::GenericMap` [INFO] [stdout] --> src/expression.rs:5:5 [INFO] [stdout] | [INFO] [stdout] 5 | use crate::types::GenericMap; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `crate::unique::Unique` [INFO] [stdout] --> src/expression.rs:12:5 [INFO] [stdout] | [INFO] [stdout] 12 | use crate::unique::Unique; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::ffi::c_void` [INFO] [stdout] --> src/types.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use std::ffi::c_void; [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::ffi::c_void` [INFO] [stdout] --> src/expression.rs:4:5 [INFO] [stdout] | [INFO] [stdout] 4 | use std::ffi::c_void; [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `crate::types::GenericMap` [INFO] [stdout] --> src/expression.rs:5:5 [INFO] [stdout] | [INFO] [stdout] 5 | use crate::types::GenericMap; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `crate::unique::Unique` [INFO] [stdout] --> src/expression.rs:12:5 [INFO] [stdout] | [INFO] [stdout] 12 | use crate::unique::Unique; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::ffi::c_void` [INFO] [stdout] --> src/types.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use std::ffi::c_void; [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `im::HashMap as PMap` [INFO] [stdout] --> src/types.rs:452:9 [INFO] [stdout] | [INFO] [stdout] 452 | use im::HashMap as PMap; // only for readability in this module [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `replace` [INFO] [stdout] --> src/types.rs:61:7 [INFO] [stdout] | [INFO] [stdout] 61 | let replace = keys.last().unwrap(); [INFO] [stdout] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_replace` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function pointer comparisons do not produce meaningful results since their addresses are not guaranteed to be unique [INFO] [stdout] --> src/expression.rs:40:5 [INFO] [stdout] | [INFO] [stdout] 35 | #[derive(Debug,PartialEq)] [INFO] [stdout] | --------- in this derive macro expansion [INFO] [stdout] ... [INFO] [stdout] 40 | pub exec: fn(&[Value]) -> Option, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: the address of the same function can vary between different codegen units [INFO] [stdout] = note: furthermore, different functions could have the same address after being merged together [INFO] [stdout] = note: for more information visit [INFO] [stdout] = note: `#[warn(unpredictable_function_pointer_comparisons)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `replace` [INFO] [stdout] --> src/types.rs:61:7 [INFO] [stdout] | [INFO] [stdout] 61 | let replace = keys.last().unwrap(); [INFO] [stdout] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_replace` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function pointer comparisons do not produce meaningful results since their addresses are not guaranteed to be unique [INFO] [stdout] --> src/expression.rs:40:5 [INFO] [stdout] | [INFO] [stdout] 35 | #[derive(Debug,PartialEq)] [INFO] [stdout] | --------- in this derive macro expansion [INFO] [stdout] ... [INFO] [stdout] 40 | pub exec: fn(&[Value]) -> Option, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: the address of the same function can vary between different codegen units [INFO] [stdout] = note: furthermore, different functions could have the same address after being merged together [INFO] [stdout] = note: for more information visit [INFO] [stdout] = note: `#[warn(unpredictable_function_pointer_comparisons)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.21s [INFO] running `Command { std: "docker" "inspect" "a9ef70265e4fad62a4cb22834a0065cedfe278383d37886f865b0c22ab6c5df3", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a9ef70265e4fad62a4cb22834a0065cedfe278383d37886f865b0c22ab6c5df3", kill_on_drop: false }` [INFO] [stdout] a9ef70265e4fad62a4cb22834a0065cedfe278383d37886f865b0c22ab6c5df3