[INFO] cloning repository https://github.com/weykon/thread-playground [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/weykon/thread-playground" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fweykon%2Fthread-playground", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fweykon%2Fthread-playground'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] a92e688ad51f2e6be763b73c3df481ad98041b53 [INFO] checking weykon/thread-playground against master#9f48dedc9763334a587c66558974635807a113ed for pr-137394 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fweykon%2Fthread-playground" "/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/weykon/thread-playground on toolchain 9f48dedc9763334a587c66558974635807a113ed [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+9f48dedc9763334a587c66558974635807a113ed" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/weykon/thread-playground [INFO] finished tweaking git repo https://github.com/weykon/thread-playground [INFO] tweaked toml for git repo https://github.com/weykon/thread-playground written to /workspace/builds/worker-4-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/weykon/thread-playground 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" "+9f48dedc9763334a587c66558974635807a113ed" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [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@sha256:3959728d45483eb673ba100a951a6b9f5012970368db2a9e08e0ac9b67c8a5ad" "/opt/rustwide/cargo-home/bin/cargo" "+9f48dedc9763334a587c66558974635807a113ed" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 0c7965d038da32f439511907a866a95b241cc4d645bc63d1078c43a386cda56d [INFO] running `Command { std: "docker" "start" "-a" "0c7965d038da32f439511907a866a95b241cc4d645bc63d1078c43a386cda56d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "0c7965d038da32f439511907a866a95b241cc4d645bc63d1078c43a386cda56d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "0c7965d038da32f439511907a866a95b241cc4d645bc63d1078c43a386cda56d", kill_on_drop: false }` [INFO] [stdout] 0c7965d038da32f439511907a866a95b241cc4d645bc63d1078c43a386cda56d [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@sha256:3959728d45483eb673ba100a951a6b9f5012970368db2a9e08e0ac9b67c8a5ad" "/opt/rustwide/cargo-home/bin/cargo" "+9f48dedc9763334a587c66558974635807a113ed" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 1c40fad1942dacc6293021659c5db8febdf7c5245407caa58c6acd73f993d084 [INFO] running `Command { std: "docker" "start" "-a" "1c40fad1942dacc6293021659c5db8febdf7c5245407caa58c6acd73f993d084", kill_on_drop: false }` [INFO] [stderr] Compiling num-traits v0.2.16 [INFO] [stderr] Checking iana-time-zone v0.1.57 [INFO] [stderr] Checking chrono v0.4.31 [INFO] [stderr] Checking thread_playground v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused variable: `tr` [INFO] [stdout] --> src/tasks/mod.rs:28:14 [INFO] [stdout] | [INFO] [stdout] 28 | let (tx, tr) = channel(); [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_tr` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `tx` [INFO] [stdout] --> src/tasks/mod.rs:45:13 [INFO] [stdout] | [INFO] [stdout] 45 | let tx: Sender = tx.clone(); [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_tx` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `num` [INFO] [stdout] --> src/dead_lock.rs:18:17 [INFO] [stdout] | [INFO] [stdout] 18 | let mut num = lock2_ref.lock().unwrap(); [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_num` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/dead_lock.rs:18:13 [INFO] [stdout] | [INFO] [stdout] 18 | let mut num = lock2_ref.lock().unwrap(); [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: field `0` is never read [INFO] [stdout] --> src/tasks/mod.rs:10:16 [INFO] [stdout] | [INFO] [stdout] 10 | SearchPath(String), [INFO] [stdout] | ---------- ^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this variant [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field [INFO] [stdout] | [INFO] [stdout] 10 - SearchPath(String), [INFO] [stdout] 10 + SearchPath(()), [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant `Search` is never constructed [INFO] [stdout] --> src/tasks/mod.rs:11:5 [INFO] [stdout] | [INFO] [stdout] 9 | enum Task { [INFO] [stdout] | ---- variant in this enum [INFO] [stdout] 10 | SearchPath(String), [INFO] [stdout] 11 | Search(String), [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `next_id` is never read [INFO] [stdout] --> src/tasks/mod.rs:16:9 [INFO] [stdout] | [INFO] [stdout] 14 | struct State { [INFO] [stdout] | ----- field in this struct [INFO] [stdout] 15 | pub tasks: Vec>>, [INFO] [stdout] 16 | pub next_id: u64, [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `main` is never used [INFO] [stdout] --> src/tasks/mod.rs:53:4 [INFO] [stdout] | [INFO] [stdout] 53 | fn main() { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `tr` [INFO] [stdout] --> src/tasks/mod.rs:28:14 [INFO] [stdout] | [INFO] [stdout] 28 | let (tx, tr) = channel(); [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_tr` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `tx` [INFO] [stdout] --> src/tasks/mod.rs:45:13 [INFO] [stdout] | [INFO] [stdout] 45 | let tx: Sender = tx.clone(); [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_tx` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `num` [INFO] [stdout] --> src/dead_lock.rs:18:17 [INFO] [stdout] | [INFO] [stdout] 18 | let mut num = lock2_ref.lock().unwrap(); [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_num` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/dead_lock.rs:18:13 [INFO] [stdout] | [INFO] [stdout] 18 | let mut num = lock2_ref.lock().unwrap(); [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: field `0` is never read [INFO] [stdout] --> src/tasks/mod.rs:10:16 [INFO] [stdout] | [INFO] [stdout] 10 | SearchPath(String), [INFO] [stdout] | ---------- ^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this variant [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field [INFO] [stdout] | [INFO] [stdout] 10 - SearchPath(String), [INFO] [stdout] 10 + SearchPath(()), [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant `Search` is never constructed [INFO] [stdout] --> src/tasks/mod.rs:11:5 [INFO] [stdout] | [INFO] [stdout] 9 | enum Task { [INFO] [stdout] | ---- variant in this enum [INFO] [stdout] 10 | SearchPath(String), [INFO] [stdout] 11 | Search(String), [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `next_id` is never read [INFO] [stdout] --> src/tasks/mod.rs:16:9 [INFO] [stdout] | [INFO] [stdout] 14 | struct State { [INFO] [stdout] | ----- field in this struct [INFO] [stdout] 15 | pub tasks: Vec>>, [INFO] [stdout] 16 | pub next_id: u64, [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `main` is never used [INFO] [stdout] --> src/tasks/mod.rs:53:4 [INFO] [stdout] | [INFO] [stdout] 53 | fn main() { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `tr` [INFO] [stdout] --> src/tasks/mod.rs:28:14 [INFO] [stdout] | [INFO] [stdout] 28 | let (tx, tr) = channel(); [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_tr` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `tx` [INFO] [stdout] --> src/tasks/mod.rs:45:13 [INFO] [stdout] | [INFO] [stdout] 45 | let tx: Sender = tx.clone(); [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_tx` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/tasks/mod.rs:10:16 [INFO] [stdout] | [INFO] [stdout] 10 | SearchPath(String), [INFO] [stdout] | ---------- ^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this variant [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field [INFO] [stdout] | [INFO] [stdout] 10 - SearchPath(String), [INFO] [stdout] 10 + SearchPath(()), [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant `Search` is never constructed [INFO] [stdout] --> src/tasks/mod.rs:11:5 [INFO] [stdout] | [INFO] [stdout] 9 | enum Task { [INFO] [stdout] | ---- variant in this enum [INFO] [stdout] 10 | SearchPath(String), [INFO] [stdout] 11 | Search(String), [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `next_id` is never read [INFO] [stdout] --> src/tasks/mod.rs:16:9 [INFO] [stdout] | [INFO] [stdout] 14 | struct State { [INFO] [stdout] | ----- field in this struct [INFO] [stdout] 15 | pub tasks: Vec>>, [INFO] [stdout] 16 | pub next_id: u64, [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `tr` [INFO] [stdout] --> src/tasks/mod.rs:28:14 [INFO] [stdout] | [INFO] [stdout] 28 | let (tx, tr) = channel(); [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_tr` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `tx` [INFO] [stdout] --> src/tasks/mod.rs:45:13 [INFO] [stdout] | [INFO] [stdout] 45 | let tx: Sender = tx.clone(); [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_tx` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/tasks/mod.rs:10:16 [INFO] [stdout] | [INFO] [stdout] 10 | SearchPath(String), [INFO] [stdout] | ---------- ^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this variant [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field [INFO] [stdout] | [INFO] [stdout] 10 - SearchPath(String), [INFO] [stdout] 10 + SearchPath(()), [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant `Search` is never constructed [INFO] [stdout] --> src/tasks/mod.rs:11:5 [INFO] [stdout] | [INFO] [stdout] 9 | enum Task { [INFO] [stdout] | ---- variant in this enum [INFO] [stdout] 10 | SearchPath(String), [INFO] [stdout] 11 | Search(String), [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `next_id` is never read [INFO] [stdout] --> src/tasks/mod.rs:16:9 [INFO] [stdout] | [INFO] [stdout] 14 | struct State { [INFO] [stdout] | ----- field in this struct [INFO] [stdout] 15 | pub tasks: Vec>>, [INFO] [stdout] 16 | pub next_id: u64, [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.70s [INFO] running `Command { std: "docker" "inspect" "1c40fad1942dacc6293021659c5db8febdf7c5245407caa58c6acd73f993d084", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "1c40fad1942dacc6293021659c5db8febdf7c5245407caa58c6acd73f993d084", kill_on_drop: false }` [INFO] [stdout] 1c40fad1942dacc6293021659c5db8febdf7c5245407caa58c6acd73f993d084