[INFO] fetching crate gomicollector 0.1.1...
[INFO] testing gomicollector-0.1.1 against try#c2e32f1c9652b13ed99608599c1e855462f421f3 for pr-146098-7
[INFO] extracting crate gomicollector 0.1.1 into /workspace/builds/worker-7-tc2/source
[INFO] started tweaking crates.io crate gomicollector 0.1.1
[INFO] finished tweaking crates.io crate gomicollector 0.1.1
[INFO] tweaked toml for crates.io crate gomicollector 0.1.1 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate gomicollector 0.1.1 on toolchain c2e32f1c9652b13ed99608599c1e855462f421f3
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate gomicollector 0.1.1 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" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "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-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9cadc02fdf1e62e56979312d07a413cb98cad16fa7b6c791afd7fd3adb1b1d9b
[INFO] running `Command { std: "docker" "start" "-a" "9cadc02fdf1e62e56979312d07a413cb98cad16fa7b6c791afd7fd3adb1b1d9b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9cadc02fdf1e62e56979312d07a413cb98cad16fa7b6c791afd7fd3adb1b1d9b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9cadc02fdf1e62e56979312d07a413cb98cad16fa7b6c791afd7fd3adb1b1d9b", kill_on_drop: false }`
[INFO] [stdout] 9cadc02fdf1e62e56979312d07a413cb98cad16fa7b6c791afd7fd3adb1b1d9b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6e2424f7dc6e1fe0fed94fdfcb9c58a04576034654a3b772c3636bbcf8ff0252
[INFO] running `Command { std: "docker" "start" "-a" "6e2424f7dc6e1fe0fed94fdfcb9c58a04576034654a3b772c3636bbcf8ff0252", kill_on_drop: false }`
[INFO] [stderr]    Compiling gomicollector v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: method `force_gc` is never used
[INFO] [stdout]    --> src/lib.rs:129:8
[INFO] [stdout]     |
[INFO] [stdout]  45 | impl<T: Debug + Clone> Heap<T> {
[INFO] [stdout]     | ------------------------------ method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 129 |     fn force_gc(&mut self, tmp_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 `dev` profile [unoptimized + debuginfo] target(s) in 0.71s
[INFO] running `Command { std: "docker" "inspect" "6e2424f7dc6e1fe0fed94fdfcb9c58a04576034654a3b772c3636bbcf8ff0252", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6e2424f7dc6e1fe0fed94fdfcb9c58a04576034654a3b772c3636bbcf8ff0252", kill_on_drop: false }`
[INFO] [stdout] 6e2424f7dc6e1fe0fed94fdfcb9c58a04576034654a3b772c3636bbcf8ff0252
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f6341d9fdbe8b7d8945dfe1418ac8216c80d369582b9ff7c12e28f6d7f31a289
[INFO] running `Command { std: "docker" "start" "-a" "f6341d9fdbe8b7d8945dfe1418ac8216c80d369582b9ff7c12e28f6d7f31a289", kill_on_drop: false }`
[INFO] [stderr]    Compiling gomicollector v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: method `force_gc` is never used
[INFO] [stdout]    --> src/lib.rs:129:8
[INFO] [stdout]     |
[INFO] [stdout]  45 | impl<T: Debug + Clone> Heap<T> {
[INFO] [stdout]     | ------------------------------ method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 129 |     fn force_gc(&mut self, tmp_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 0.58s
[INFO] running `Command { std: "docker" "inspect" "f6341d9fdbe8b7d8945dfe1418ac8216c80d369582b9ff7c12e28f6d7f31a289", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f6341d9fdbe8b7d8945dfe1418ac8216c80d369582b9ff7c12e28f6d7f31a289", kill_on_drop: false }`
[INFO] [stdout] f6341d9fdbe8b7d8945dfe1418ac8216c80d369582b9ff7c12e28f6d7f31a289
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 4b2c09cd079985bb07e1cdc09c377deb34d9d4a621f78fc8fb7b79a26c4c5718
[INFO] running `Command { std: "docker" "start" "-a" "4b2c09cd079985bb07e1cdc09c377deb34d9d4a621f78fc8fb7b79a26c4c5718", kill_on_drop: false }`
[INFO] [stderr] warning: method `force_gc` is never used
[INFO] [stderr]    --> src/lib.rs:129:8
[INFO] [stderr]     |
[INFO] [stderr]  45 | impl<T: Debug + Clone> Heap<T> {
[INFO] [stderr]     | ------------------------------ method in this implementation
[INFO] [stderr] ...
[INFO] [stderr] 129 |     fn force_gc(&mut self, tmp_data: T) {
[INFO] [stderr]     |        ^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `gomicollector` (lib) generated 1 warning
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/gomicollector-0c7361bb358b77cd)
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/gomicollector-2bcd01880fa394c5)
[INFO] [stderr]    Doc-tests gomicollector
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test tests::test_can_allocate_twice ... ok
[INFO] [stdout] test tests::test_nearly_full_heap ... ok
[INFO] [stdout] test tests::test_root_is_not_recycled ... ok
[INFO] [stdout] test tests::test_reachable_objects_not_collected ... ok
[INFO] [stdout] test tests::test_root_set ... ok
[INFO] [stdout] test tests::test_full_heap ... 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] [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] [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" "4b2c09cd079985bb07e1cdc09c377deb34d9d4a621f78fc8fb7b79a26c4c5718", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4b2c09cd079985bb07e1cdc09c377deb34d9d4a621f78fc8fb7b79a26c4c5718", kill_on_drop: false }`
[INFO] [stdout] 4b2c09cd079985bb07e1cdc09c377deb34d9d4a621f78fc8fb7b79a26c4c5718