[INFO] cloning repository https://github.com/matt-codecov/standalone-ribs [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/matt-codecov/standalone-ribs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmatt-codecov%2Fstandalone-ribs", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmatt-codecov%2Fstandalone-ribs'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] f2ea71f9d4a5f3ca7dcbc02295b5eccb15d62e0a [INFO] checking matt-codecov/standalone-ribs against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmatt-codecov%2Fstandalone-ribs" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/matt-codecov/standalone-ribs 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 git repo https://github.com/matt-codecov/standalone-ribs [INFO] finished tweaking git repo https://github.com/matt-codecov/standalone-ribs [INFO] tweaked toml for git repo https://github.com/matt-codecov/standalone-ribs written to /workspace/builds/worker-4-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/matt-codecov/standalone-ribs 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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] warning: unused manifest key: target.cfg(target_env = "musl").dependencies.jemallocator.profiler [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded fraction v0.6.3 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] d8c9fd37c286170846952ef503b25541bc03984e51f5ecfb55376b201b4021ff [INFO] running `Command { std: "docker" "start" "-a" "d8c9fd37c286170846952ef503b25541bc03984e51f5ecfb55376b201b4021ff", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "d8c9fd37c286170846952ef503b25541bc03984e51f5ecfb55376b201b4021ff", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "d8c9fd37c286170846952ef503b25541bc03984e51f5ecfb55376b201b4021ff", kill_on_drop: false }` [INFO] [stdout] d8c9fd37c286170846952ef503b25541bc03984e51f5ecfb55376b201b4021ff [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 35ef3ae2755d58dfcbdfb63c54e56782187ae49538a8f864aed8cc5fdb588573 [INFO] running `Command { std: "docker" "start" "-a" "35ef3ae2755d58dfcbdfb63c54e56782187ae49538a8f864aed8cc5fdb588573", kill_on_drop: false }` [INFO] [stderr] warning: unused manifest key: target.cfg(target_env = "musl").dependencies.jemallocator.profiler [INFO] [stderr] Compiling proc-macro2 v1.0.69 [INFO] [stderr] Compiling target-lexicon v0.12.12 [INFO] [stderr] Compiling num-traits v0.2.17 [INFO] [stderr] Compiling num-integer v0.1.45 [INFO] [stderr] Compiling memoffset v0.9.0 [INFO] [stderr] Compiling once_cell v1.18.0 [INFO] [stderr] Compiling crossbeam-utils v0.8.16 [INFO] [stderr] Compiling libc v0.2.150 [INFO] [stderr] Compiling crossbeam-epoch v0.9.15 [INFO] [stderr] Compiling num-bigint v0.2.6 [INFO] [stderr] Compiling syn v1.0.109 [INFO] [stderr] Compiling num-complex v0.2.4 [INFO] [stderr] Compiling num-iter v0.1.43 [INFO] [stderr] Compiling num-rational v0.2.4 [INFO] [stderr] Compiling rayon-core v1.12.0 [INFO] [stderr] Compiling serde v1.0.192 [INFO] [stderr] Checking smallvec v1.11.1 [INFO] [stderr] Checking either v1.9.0 [INFO] [stderr] Compiling indoc v1.0.9 [INFO] [stderr] Checking ryu v1.0.15 [INFO] [stderr] Checking itoa v1.0.9 [INFO] [stderr] Checking unindent v0.1.11 [INFO] [stderr] Compiling pyo3-build-config v0.19.2 [INFO] [stderr] Compiling quote v1.0.33 [INFO] [stderr] Checking crossbeam-deque v0.8.3 [INFO] [stderr] Compiling syn v2.0.39 [INFO] [stderr] Checking parking_lot_core v0.9.9 [INFO] [stderr] Checking parking_lot v0.12.1 [INFO] [stderr] Checking rayon v1.8.0 [INFO] [stderr] Compiling pyo3-ffi v0.19.2 [INFO] [stderr] Compiling pyo3 v0.19.2 [INFO] [stderr] Checking num v0.2.1 [INFO] [stderr] Checking fraction v0.6.3 [INFO] [stderr] Compiling serde_derive v1.0.192 [INFO] [stderr] Compiling pyo3-macros-backend v0.19.2 [INFO] [stderr] Compiling pyo3-macros v0.19.2 [INFO] [stderr] Checking serde_json v1.0.108 [INFO] [stderr] Checking rustyribs v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `rayon::prelude` [INFO] [stdout] --> src/changes.rs:5:5 [INFO] [stdout] | [INFO] [stdout] 5 | use rayon::prelude::*; [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/file.rs:127:33 [INFO] [stdout] | [INFO] [stdout] 127 | ... let mut stat = [INFO] [stdout] | ----^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `rayon::prelude` [INFO] [stdout] --> src/changes.rs:5:5 [INFO] [stdout] | [INFO] [stdout] 5 | use rayon::prelude::*; [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/file.rs:127:33 [INFO] [stdout] | [INFO] [stdout] 127 | ... let mut stat = [INFO] [stdout] | ----^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/profiling.rs:166:9 [INFO] [stdout] | [INFO] [stdout] 166 | file.read_to_string(&mut contents); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 166 | let _ = file.read_to_string(&mut contents); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 11.98s [INFO] running `Command { std: "docker" "inspect" "35ef3ae2755d58dfcbdfb63c54e56782187ae49538a8f864aed8cc5fdb588573", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "35ef3ae2755d58dfcbdfb63c54e56782187ae49538a8f864aed8cc5fdb588573", kill_on_drop: false }` [INFO] [stdout] 35ef3ae2755d58dfcbdfb63c54e56782187ae49538a8f864aed8cc5fdb588573