[INFO] cloning repository https://github.com/seanconnery13/rust_playground [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/seanconnery13/rust_playground" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fseanconnery13%2Frust_playground", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fseanconnery13%2Frust_playground'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] fe721ee121584dcd35846055c412bdb634907192 [INFO] building seanconnery13/rust_playground/fe721ee121584dcd35846055c412bdb634907192 against master#eb171a227f9e5de5d376b6edb56b174bc8235fb3 for pr-149937 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fseanconnery13%2Frust_playground" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'... [INFO] [stderr] done. [INFO] started tweaking git repo https://github.com/seanconnery13/rust_playground [INFO] finished tweaking git repo https://github.com/seanconnery13/rust_playground [INFO] tweaked toml for git repo https://github.com/seanconnery13/rust_playground written to /workspace/builds/worker-2-tc1/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/seanconnery13/rust_playground on toolchain eb171a227f9e5de5d376b6edb56b174bc8235fb3 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+eb171a227f9e5de5d376b6edb56b174bc8235fb3" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate git repo https://github.com/seanconnery13/rust_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" "+eb171a227f9e5de5d376b6edb56b174bc8235fb3" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Locking 39 packages to latest compatible versions [INFO] [stderr] Adding bitflags v2.10.0 [INFO] [stderr] Adding bytes v1.11.0 [INFO] [stderr] Adding errno v0.3.14 [INFO] [stderr] Adding futures v0.3.31 [INFO] [stderr] Adding futures-channel v0.3.31 [INFO] [stderr] Adding futures-core v0.3.31 [INFO] [stderr] Adding futures-executor v0.3.31 [INFO] [stderr] Adding futures-io v0.3.31 [INFO] [stderr] Adding futures-macro v0.3.31 [INFO] [stderr] Adding futures-sink v0.3.31 [INFO] [stderr] Adding futures-task v0.3.31 [INFO] [stderr] Adding futures-util v0.3.31 [INFO] [stderr] Adding getrandom v0.3.4 [INFO] [stderr] Updating libc v0.2.170 -> v0.2.178 [INFO] [stderr] Adding lock_api v0.4.14 [INFO] [stderr] Adding mio v1.1.1 [INFO] [stderr] Adding parking_lot v0.12.5 [INFO] [stderr] Adding parking_lot_core v0.9.12 [INFO] [stderr] Adding pin-utils v0.1.0 [INFO] [stderr] Adding ppv-lite86 v0.2.21 [INFO] [stderr] Updating quote v1.0.38 -> v1.0.42 [INFO] [stderr] Adding r-efi v5.3.0 [INFO] [stderr] Adding rand v0.9.2 [INFO] [stderr] Adding rand_chacha v0.9.0 [INFO] [stderr] Adding rand_core v0.9.3 [INFO] [stderr] Adding redox_syscall v0.5.18 [INFO] [stderr] Adding scopeguard v1.2.0 [INFO] [stderr] Adding signal-hook-registry v1.4.8 [INFO] [stderr] Adding slab v0.4.11 [INFO] [stderr] Adding smallvec v1.15.1 [INFO] [stderr] Adding socket2 v0.5.10 [INFO] [stderr] Adding wasi v0.11.1+wasi-snapshot-preview1 [INFO] [stderr] Adding wasip2 v1.0.1+wasi-0.2.4 [INFO] [stderr] Adding windows-link v0.2.1 [INFO] [stderr] Adding windows-sys v0.52.0 [INFO] [stderr] Adding windows-sys v0.61.2 [INFO] [stderr] Adding wit-bindgen v0.46.0 [INFO] [stderr] Adding zerocopy v0.8.31 [INFO] [stderr] Adding zerocopy-derive v0.8.31 [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded signal-hook-registry v1.4.8 [INFO] [stderr] Downloaded zerocopy-derive v0.8.31 [INFO] [stderr] Downloaded mio v1.1.1 [INFO] [stderr] Downloaded zerocopy v0.8.31 [INFO] [stderr] Downloaded libc v0.2.178 [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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+eb171a227f9e5de5d376b6edb56b174bc8235fb3" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 79547e68f1db936647ec94a478927e728fe80c269efde54e1ec12e590061f2e0 [INFO] running `Command { std: "docker" "start" "-a" "79547e68f1db936647ec94a478927e728fe80c269efde54e1ec12e590061f2e0", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "79547e68f1db936647ec94a478927e728fe80c269efde54e1ec12e590061f2e0", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "79547e68f1db936647ec94a478927e728fe80c269efde54e1ec12e590061f2e0", kill_on_drop: false }` [INFO] [stdout] 79547e68f1db936647ec94a478927e728fe80c269efde54e1ec12e590061f2e0 [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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+eb171a227f9e5de5d376b6edb56b174bc8235fb3" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 9398496d22e453cac444a23c33f8a654ba4c7f6c0301a7cd6ed291d2235e44cf [INFO] running `Command { std: "docker" "start" "-a" "9398496d22e453cac444a23c33f8a654ba4c7f6c0301a7cd6ed291d2235e44cf", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.178 [INFO] [stderr] Compiling proc-macro2 v1.0.93 [INFO] [stderr] Compiling quote v1.0.42 [INFO] [stderr] Compiling unicode-ident v1.0.17 [INFO] [stderr] Compiling cfg-if v1.0.0 [INFO] [stderr] Compiling getrandom v0.3.4 [INFO] [stderr] Compiling zerocopy v0.8.31 [INFO] [stderr] Compiling futures-sink v0.3.31 [INFO] [stderr] Compiling pin-project-lite v0.2.16 [INFO] [stderr] Compiling parking_lot_core v0.9.12 [INFO] [stderr] Compiling futures-core v0.3.31 [INFO] [stderr] Compiling pin-utils v0.1.0 [INFO] [stderr] Compiling slab v0.4.11 [INFO] [stderr] Compiling smallvec v1.15.1 [INFO] [stderr] Compiling scopeguard v1.2.0 [INFO] [stderr] Compiling futures-io v0.3.31 [INFO] [stderr] Compiling futures-task v0.3.31 [INFO] [stderr] Compiling memchr v2.7.4 [INFO] [stderr] Compiling futures-channel v0.3.31 [INFO] [stderr] Compiling lock_api v0.4.14 [INFO] [stderr] Compiling bytes v1.11.0 [INFO] [stderr] Compiling syn v2.0.98 [INFO] [stderr] Compiling errno v0.3.14 [INFO] [stderr] Compiling mio v1.1.1 [INFO] [stderr] Compiling socket2 v0.5.10 [INFO] [stderr] Compiling signal-hook-registry v1.4.8 [INFO] [stderr] Compiling rand_core v0.9.3 [INFO] [stderr] Compiling parking_lot v0.12.5 [INFO] [stderr] Compiling ppv-lite86 v0.2.21 [INFO] [stderr] Compiling rand_chacha v0.9.0 [INFO] [stderr] Compiling rand v0.9.2 [INFO] [stderr] Compiling futures-macro v0.3.31 [INFO] [stderr] Compiling tokio-macros v2.5.0 [INFO] [stderr] Compiling tokio v1.43.0 [INFO] [stderr] Compiling futures-util v0.3.31 [INFO] [stderr] Compiling futures-executor v0.3.31 [INFO] [stderr] Compiling futures v0.3.31 [INFO] [stderr] Compiling rust_playground v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused variable: `i` [INFO] [stdout] --> src/bin/simple_threads.rs:8:9 [INFO] [stdout] | [INFO] [stdout] 8 | for i in 1..50 { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_i` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `create_new_threads_without_join` is never used [INFO] [stdout] --> src/bin/simple_threads.rs:19:4 [INFO] [stdout] | [INFO] [stdout] 19 | fn create_new_threads_without_join() { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `futures::future::join` [INFO] [stdout] --> src/bin/async_block_2.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use futures::future::join; [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 `Result` in tuple element 0 that must be used [INFO] [stdout] --> src/bin/breakfast_with_tasks.rs:18:5 [INFO] [stdout] | [INFO] [stdout] 18 | tokio::join!(coffee_mug_thread, coffee_thread, toast_thread); [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)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` in tuple element 1 that must be used [INFO] [stdout] --> src/bin/breakfast_with_tasks.rs:18:5 [INFO] [stdout] | [INFO] [stdout] 18 | tokio::join!(coffee_mug_thread, coffee_thread, toast_thread); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` in tuple element 2 that must be used [INFO] [stdout] --> src/bin/breakfast_with_tasks.rs:18:5 [INFO] [stdout] | [INFO] [stdout] 18 | tokio::join!(coffee_mug_thread, coffee_thread, toast_thread); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `f2` [INFO] [stdout] --> src/bin/async_block_2.rs:14:9 [INFO] [stdout] | [INFO] [stdout] 14 | let f2 = async { [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_f2` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 19.19s [INFO] running `Command { std: "docker" "inspect" "9398496d22e453cac444a23c33f8a654ba4c7f6c0301a7cd6ed291d2235e44cf", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "9398496d22e453cac444a23c33f8a654ba4c7f6c0301a7cd6ed291d2235e44cf", kill_on_drop: false }` [INFO] [stdout] 9398496d22e453cac444a23c33f8a654ba4c7f6c0301a7cd6ed291d2235e44cf [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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+eb171a227f9e5de5d376b6edb56b174bc8235fb3" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 86b33cc1831f23f60f922e7760bf1a328f1faac4a5855ae40c4c290efc2837d4 [INFO] running `Command { std: "docker" "start" "-a" "86b33cc1831f23f60f922e7760bf1a328f1faac4a5855ae40c4c290efc2837d4", kill_on_drop: false }` [INFO] [stderr] Compiling rust_playground v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `futures::future::join` [INFO] [stdout] --> src/bin/async_block_2.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use futures::future::join; [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 variable: `f2` [INFO] [stdout] --> src/bin/async_block_2.rs:14:9 [INFO] [stdout] | [INFO] [stdout] 14 | let f2 = async { [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_f2` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `i` [INFO] [stdout] --> src/bin/simple_threads.rs:8:9 [INFO] [stdout] | [INFO] [stdout] 8 | for i in 1..50 { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_i` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `create_new_threads_without_join` is never used [INFO] [stdout] --> src/bin/simple_threads.rs:19:4 [INFO] [stdout] | [INFO] [stdout] 19 | fn create_new_threads_without_join() { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` in tuple element 0 that must be used [INFO] [stdout] --> src/bin/breakfast_with_tasks.rs:18:5 [INFO] [stdout] | [INFO] [stdout] 18 | tokio::join!(coffee_mug_thread, coffee_thread, toast_thread); [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)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` in tuple element 1 that must be used [INFO] [stdout] --> src/bin/breakfast_with_tasks.rs:18:5 [INFO] [stdout] | [INFO] [stdout] 18 | tokio::join!(coffee_mug_thread, coffee_thread, toast_thread); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` in tuple element 2 that must be used [INFO] [stdout] --> src/bin/breakfast_with_tasks.rs:18:5 [INFO] [stdout] | [INFO] [stdout] 18 | tokio::join!(coffee_mug_thread, coffee_thread, toast_thread); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 1.09s [INFO] running `Command { std: "docker" "inspect" "86b33cc1831f23f60f922e7760bf1a328f1faac4a5855ae40c4c290efc2837d4", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "86b33cc1831f23f60f922e7760bf1a328f1faac4a5855ae40c4c290efc2837d4", kill_on_drop: false }` [INFO] [stdout] 86b33cc1831f23f60f922e7760bf1a328f1faac4a5855ae40c4c290efc2837d4