[INFO] cloning repository https://github.com/rahulnakre/rust_channels [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/rahulnakre/rust_channels" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frahulnakre%2Frust_channels", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frahulnakre%2Frust_channels'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 921033a1bacb4b2aee1342b0572b9dace0481830 [INFO] testing rahulnakre/rust_channels against master#62efba8a050c64249dab942951bb28f710208bc8 for pr-90799 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frahulnakre%2Frust_channels" "/workspace/builds/worker-61/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-61/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/rahulnakre/rust_channels on toolchain 62efba8a050c64249dab942951bb28f710208bc8 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/rahulnakre/rust_channels [INFO] finished tweaking git repo https://github.com/rahulnakre/rust_channels [INFO] tweaked toml for git repo https://github.com/rahulnakre/rust_channels written to /workspace/builds/worker-61/source/Cargo.toml [INFO] crate git repo https://github.com/rahulnakre/rust_channels already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "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-61/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-61/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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] ab7c3098fb4c7bccf877c21f7253ca46473b3b0c4404f18a718130390da5b89d [INFO] running `Command { std: "docker" "start" "-a" "ab7c3098fb4c7bccf877c21f7253ca46473b3b0c4404f18a718130390da5b89d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "ab7c3098fb4c7bccf877c21f7253ca46473b3b0c4404f18a718130390da5b89d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "ab7c3098fb4c7bccf877c21f7253ca46473b3b0c4404f18a718130390da5b89d", kill_on_drop: false }` [INFO] [stdout] ab7c3098fb4c7bccf877c21f7253ca46473b3b0c4404f18a718130390da5b89d [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-61/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-61/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" "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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 1cb1a74a3afef8e32dadfaccd53ee03c37f5a13675cfec53e22f91eee144cc43 [INFO] running `Command { std: "docker" "start" "-a" "1cb1a74a3afef8e32dadfaccd53ee03c37f5a13675cfec53e22f91eee144cc43", kill_on_drop: false }` [INFO] [stderr] Compiling rust_channel_from_stdlib v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `std::thread` [INFO] [stdout] --> src/lib.rs:6:5 [INFO] [stdout] | [INFO] [stdout] 6 | use std::thread; [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::sync::mpsc` [INFO] [stdout] --> src/lib.rs:7:5 [INFO] [stdout] | [INFO] [stdout] 7 | use std::sync::mpsc; [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.22s [INFO] running `Command { std: "docker" "inspect" "1cb1a74a3afef8e32dadfaccd53ee03c37f5a13675cfec53e22f91eee144cc43", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "1cb1a74a3afef8e32dadfaccd53ee03c37f5a13675cfec53e22f91eee144cc43", kill_on_drop: false }` [INFO] [stdout] 1cb1a74a3afef8e32dadfaccd53ee03c37f5a13675cfec53e22f91eee144cc43 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-61/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-61/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" "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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] f2c8ac78e91c80745442ad5b9d01384c0115cdfcdce783281a7c15beddd8c757 [INFO] running `Command { std: "docker" "start" "-a" "f2c8ac78e91c80745442ad5b9d01384c0115cdfcdce783281a7c15beddd8c757", kill_on_drop: false }` [INFO] [stdout] warning: unused import: `std::thread` [INFO] [stdout] --> src/lib.rs:6:5 [INFO] [stdout] | [INFO] [stdout] 6 | use std::thread; [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling rust_channel_from_stdlib v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `std::sync::mpsc` [INFO] [stdout] --> src/lib.rs:7:5 [INFO] [stdout] | [INFO] [stdout] 7 | use std::sync::mpsc; [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `rx` [INFO] [stdout] --> src/lib.rs:203:22 [INFO] [stdout] | [INFO] [stdout] 203 | let (mut tx, mut rx) = channel(); [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_rx` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `rx` [INFO] [stdout] --> src/lib.rs:216:14 [INFO] [stdout] | [INFO] [stdout] 216 | let (tx, rx) = mpsc::channel(); [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_rx` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/lib.rs:203:18 [INFO] [stdout] | [INFO] [stdout] 203 | let (mut tx, mut rx) = channel(); [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/lib.rs:217:5 [INFO] [stdout] | [INFO] [stdout] 217 | tx.send(10); [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.64s [INFO] running `Command { std: "docker" "inspect" "f2c8ac78e91c80745442ad5b9d01384c0115cdfcdce783281a7c15beddd8c757", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "f2c8ac78e91c80745442ad5b9d01384c0115cdfcdce783281a7c15beddd8c757", kill_on_drop: false }` [INFO] [stdout] f2c8ac78e91c80745442ad5b9d01384c0115cdfcdce783281a7c15beddd8c757 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-61/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-61/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" "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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] ecf57bcf3e22a2d892f345d350d210a102fafa8211295dc18bfe1fcb19259bf5 [INFO] running `Command { std: "docker" "start" "-a" "ecf57bcf3e22a2d892f345d350d210a102fafa8211295dc18bfe1fcb19259bf5", kill_on_drop: false }` [INFO] [stderr] warning: unused import: `std::thread` [INFO] [stderr] --> src/lib.rs:6:5 [INFO] [stderr] | [INFO] [stderr] 6 | use std::thread; [INFO] [stderr] | ^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::sync::mpsc` [INFO] [stderr] --> src/lib.rs:7:5 [INFO] [stderr] | [INFO] [stderr] 7 | use std::sync::mpsc; [INFO] [stderr] | ^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: `rust_channel_from_stdlib` (lib) generated 2 warnings [INFO] [stderr] warning: unused variable: `rx` [INFO] [stderr] --> src/lib.rs:203:22 [INFO] [stderr] | [INFO] [stderr] 203 | let (mut tx, mut rx) = channel(); [INFO] [stderr] | ^^ help: if this is intentional, prefix it with an underscore: `_rx` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `rx` [INFO] [stderr] --> src/lib.rs:216:14 [INFO] [stderr] | [INFO] [stderr] 216 | let (tx, rx) = mpsc::channel(); [INFO] [stderr] | ^^ help: if this is intentional, prefix it with an underscore: `_rx` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/lib.rs:203:18 [INFO] [stderr] | [INFO] [stderr] 203 | let (mut tx, mut rx) = channel(); [INFO] [stderr] | ----^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_mut)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused `Result` that must be used [INFO] [stderr] --> src/lib.rs:217:5 [INFO] [stderr] | [INFO] [stderr] 217 | tx.send(10); [INFO] [stderr] | ^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_must_use)]` on by default [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: `rust_channel_from_stdlib` (lib test) generated 4 warnings [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.00s [INFO] [stderr] Running unittests (/opt/rustwide/target/debug/deps/rust_channel_from_stdlib-0e1ed93375fa0ca3) [INFO] [stdout] [INFO] [stdout] running 6 tests [INFO] [stdout] test tests::closed_rx ... ok [INFO] [stdout] test tests::closed_tx ... ok [INFO] [stdout] test tests::my_channel_send ... ok [INFO] [stdout] test tests::mpsc_channel_send ... ok [INFO] [stdout] test tests::ping_pong ... ok [INFO] [stdout] test tests::play2 ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] [stderr] Running unittests (/opt/rustwide/target/debug/deps/rust_channel_from_stdlib-f704b0b78723a36a) [INFO] [stdout] [INFO] [stdout] running 0 tests [INFO] [stdout] [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] [stderr] Doc-tests rust_channel_from_stdlib [INFO] [stdout] [INFO] [stdout] running 0 tests [INFO] [stdout] [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "ecf57bcf3e22a2d892f345d350d210a102fafa8211295dc18bfe1fcb19259bf5", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "ecf57bcf3e22a2d892f345d350d210a102fafa8211295dc18bfe1fcb19259bf5", kill_on_drop: false }` [INFO] [stdout] ecf57bcf3e22a2d892f345d350d210a102fafa8211295dc18bfe1fcb19259bf5