[INFO] cloning repository https://github.com/uhhJoyz/rust_min_desc [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/uhhJoyz/rust_min_desc" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FuhhJoyz%2Frust_min_desc", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FuhhJoyz%2Frust_min_desc'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] caff556afa8d3dca916c4f65519221e486ffc9ae [INFO] building uhhJoyz/rust_min_desc against master#11663cd3bfefef7d34e8f0892c250bf698049392+rustflags=-Dtail-expr-drop-order for pr-134523 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FuhhJoyz%2Frust_min_desc" "/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/uhhJoyz/rust_min_desc on toolchain 11663cd3bfefef7d34e8f0892c250bf698049392 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] removed /workspace/builds/worker-2-tc1/source/rust-toolchain.toml [INFO] started tweaking git repo https://github.com/uhhJoyz/rust_min_desc [INFO] finished tweaking git repo https://github.com/uhhJoyz/rust_min_desc [INFO] tweaked toml for git repo https://github.com/uhhJoyz/rust_min_desc written to /workspace/builds/worker-2-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/uhhJoyz/rust_min_desc 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" "+11663cd3bfefef7d34e8f0892c250bf698049392" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] d33f526910dd1b3a78c02fcb84c3c6563025dce22d2746c6c7739879fe8e64d5 [INFO] running `Command { std: "docker" "start" "-a" "d33f526910dd1b3a78c02fcb84c3c6563025dce22d2746c6c7739879fe8e64d5", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "d33f526910dd1b3a78c02fcb84c3c6563025dce22d2746c6c7739879fe8e64d5", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "d33f526910dd1b3a78c02fcb84c3c6563025dce22d2746c6c7739879fe8e64d5", kill_on_drop: false }` [INFO] [stdout] d33f526910dd1b3a78c02fcb84c3c6563025dce22d2746c6c7739879fe8e64d5 [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 -Dtail-expr-drop-order" "-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 2e4fb72a5da42fafdd9a236590e6ecbb7d693c1f2fc292001af3f66bc7385533 [INFO] running `Command { std: "docker" "start" "-a" "2e4fb72a5da42fafdd9a236590e6ecbb7d693c1f2fc292001af3f66bc7385533", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.147 [INFO] [stderr] Compiling cfg-if v1.0.0 [INFO] [stderr] Compiling ppv-lite86 v0.2.17 [INFO] [stderr] Compiling either v1.8.1 [INFO] [stderr] Compiling itertools v0.11.0 [INFO] [stderr] Compiling getrandom v0.2.10 [INFO] [stderr] Compiling rand_core v0.6.4 [INFO] [stderr] Compiling rand_chacha v0.3.1 [INFO] [stderr] Compiling rand v0.8.5 [INFO] [stderr] Compiling min_desc_heuristic v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `std::sync::mpsc` [INFO] [stdout] --> src/heuristic_solver.rs:3:5 [INFO] [stdout] | [INFO] [stdout] 3 | use std::sync::mpsc; [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/heuristic_solver.rs:21:9 [INFO] [stdout] | [INFO] [stdout] 21 | let mut removed: Vec = vec![]; [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: variable does not need to be mutable [INFO] [stdout] --> src/heuristic_solver.rs:34:9 [INFO] [stdout] | [INFO] [stdout] 34 | let mut removed_list: Arc>>> = Arc::new(RwLock::new(vec![])); [INFO] [stdout] | ----^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/heuristic_solver.rs:45:13 [INFO] [stdout] | [INFO] [stdout] 45 | let mut removed_list_ptr = removed_list.clone(); [INFO] [stdout] | ----^^^^^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.98s [INFO] running `Command { std: "docker" "inspect" "2e4fb72a5da42fafdd9a236590e6ecbb7d693c1f2fc292001af3f66bc7385533", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "2e4fb72a5da42fafdd9a236590e6ecbb7d693c1f2fc292001af3f66bc7385533", kill_on_drop: false }` [INFO] [stdout] 2e4fb72a5da42fafdd9a236590e6ecbb7d693c1f2fc292001af3f66bc7385533 [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 -Dtail-expr-drop-order" "-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] d19ad7735cc18ff8590317e84af88d2b0f966684580ea91b11047b243cff407f [INFO] running `Command { std: "docker" "start" "-a" "d19ad7735cc18ff8590317e84af88d2b0f966684580ea91b11047b243cff407f", kill_on_drop: false }` [INFO] [stderr] Compiling min_desc_heuristic v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `std::sync::mpsc` [INFO] [stdout] --> src/heuristic_solver.rs:3:5 [INFO] [stdout] | [INFO] [stdout] 3 | use std::sync::mpsc; [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/heuristic_solver.rs:21:9 [INFO] [stdout] | [INFO] [stdout] 21 | let mut removed: Vec = vec![]; [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: variable does not need to be mutable [INFO] [stdout] --> src/heuristic_solver.rs:34:9 [INFO] [stdout] | [INFO] [stdout] 34 | let mut removed_list: Arc>>> = Arc::new(RwLock::new(vec![])); [INFO] [stdout] | ----^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/heuristic_solver.rs:45:13 [INFO] [stdout] | [INFO] [stdout] 45 | let mut removed_list_ptr = removed_list.clone(); [INFO] [stdout] | ----^^^^^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.69s [INFO] running `Command { std: "docker" "inspect" "d19ad7735cc18ff8590317e84af88d2b0f966684580ea91b11047b243cff407f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "d19ad7735cc18ff8590317e84af88d2b0f966684580ea91b11047b243cff407f", kill_on_drop: false }` [INFO] [stdout] d19ad7735cc18ff8590317e84af88d2b0f966684580ea91b11047b243cff407f