[INFO] fetching crate koi-gc 0.1.0... [INFO] testing koi-gc-0.1.0 against master#562dee4820c458d823175268e41601d4c060588a for pr-154210 [INFO] extracting crate koi-gc 0.1.0 into /workspace/builds/worker-1-tc1/source [INFO] started tweaking crates.io crate koi-gc 0.1.0 [INFO] finished tweaking crates.io crate koi-gc 0.1.0 [INFO] tweaked toml for crates.io crate koi-gc 0.1.0 written to /workspace/builds/worker-1-tc1/source/Cargo.toml [INFO] validating manifest of crates.io crate koi-gc 0.1.0 on toolchain 562dee4820c458d823175268e41601d4c060588a [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate crates.io crate koi-gc 0.1.0 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" "+562dee4820c458d823175268e41601d4c060588a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 10f97b03cb772f7071087bec46b436391b5634dbfcda3103258bc3c84f699ff9 [INFO] running `Command { std: "docker" "start" "-a" "10f97b03cb772f7071087bec46b436391b5634dbfcda3103258bc3c84f699ff9", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "10f97b03cb772f7071087bec46b436391b5634dbfcda3103258bc3c84f699ff9", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "10f97b03cb772f7071087bec46b436391b5634dbfcda3103258bc3c84f699ff9", kill_on_drop: false }` [INFO] [stdout] 10f97b03cb772f7071087bec46b436391b5634dbfcda3103258bc3c84f699ff9 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 713ec58fb75b3dcf9cd596a8596844d9605eb9bc4c3c5d02a44c87e2b68c4cba [INFO] running `Command { std: "docker" "start" "-a" "713ec58fb75b3dcf9cd596a8596844d9605eb9bc4c3c5d02a44c87e2b68c4cba", kill_on_drop: false }` [INFO] [stderr] Compiling koi-gc v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.61s [INFO] running `Command { std: "docker" "inspect" "713ec58fb75b3dcf9cd596a8596844d9605eb9bc4c3c5d02a44c87e2b68c4cba", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "713ec58fb75b3dcf9cd596a8596844d9605eb9bc4c3c5d02a44c87e2b68c4cba", kill_on_drop: false }` [INFO] [stdout] 713ec58fb75b3dcf9cd596a8596844d9605eb9bc4c3c5d02a44c87e2b68c4cba [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 3893652723d88b7df3c8f7e4784a3f6c5283299f75c1660b4b5baf575dcc3b2c [INFO] running `Command { std: "docker" "start" "-a" "3893652723d88b7df3c8f7e4784a3f6c5283299f75c1660b4b5baf575dcc3b2c", kill_on_drop: false }` [INFO] [stderr] Compiling koi-gc v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused variable: `visitor` [INFO] [stdout] --> src/lib.rs:486:29 [INFO] [stdout] | [INFO] [stdout] 486 | fn visit(&self, visitor: &mut dyn FnMut(&dyn GcInterface)) {} [INFO] [stdout] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_visitor` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `data` is never read [INFO] [stdout] --> src/lib.rs:440:9 [INFO] [stdout] | [INFO] [stdout] 438 | struct Leak { [INFO] [stdout] | ---- field in this struct [INFO] [stdout] 439 | cycle: RefCell>>>>, [INFO] [stdout] 440 | data: T, [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.96s [INFO] running `Command { std: "docker" "inspect" "3893652723d88b7df3c8f7e4784a3f6c5283299f75c1660b4b5baf575dcc3b2c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "3893652723d88b7df3c8f7e4784a3f6c5283299f75c1660b4b5baf575dcc3b2c", kill_on_drop: false }` [INFO] [stdout] 3893652723d88b7df3c8f7e4784a3f6c5283299f75c1660b4b5baf575dcc3b2c [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] 41bac4ef9d7156235b011d64c373512621b6521d4b89c1aeed9054e48d75619b [INFO] running `Command { std: "docker" "start" "-a" "41bac4ef9d7156235b011d64c373512621b6521d4b89c1aeed9054e48d75619b", kill_on_drop: false }` [INFO] [stderr] warning: unused variable: `visitor` [INFO] [stderr] --> src/lib.rs:486:29 [INFO] [stderr] | [INFO] [stderr] 486 | fn visit(&self, visitor: &mut dyn FnMut(&dyn GcInterface)) {} [INFO] [stderr] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_visitor` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default [INFO] [stderr] [INFO] [stderr] warning: field `data` is never read [INFO] [stderr] --> src/lib.rs:440:9 [INFO] [stderr] | [INFO] [stderr] 438 | struct Leak { [INFO] [stderr] | ---- field in this struct [INFO] [stderr] 439 | cycle: RefCell>>>>, [INFO] [stderr] 440 | data: T, [INFO] [stderr] | ^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stderr] [INFO] [stderr] warning: `koi-gc` (lib test) generated 2 warnings (run `cargo fix --lib -p koi-gc --tests` to apply 1 suggestion) [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.05s [INFO] [stderr] Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/koi_gc-eeaf49799adba8f7) [INFO] [stdout] [INFO] [stdout] running 2 tests [INFO] [stdout] test tests::not_leaked ... ok [INFO] [stdout] test tests::test_cycle_collection ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] [stderr] Doc-tests koi_gc [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" "41bac4ef9d7156235b011d64c373512621b6521d4b89c1aeed9054e48d75619b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "41bac4ef9d7156235b011d64c373512621b6521d4b89c1aeed9054e48d75619b", kill_on_drop: false }` [INFO] [stdout] 41bac4ef9d7156235b011d64c373512621b6521d4b89c1aeed9054e48d75619b