[INFO] fetching crate qutex 0.2.6...
[INFO] testing qutex-0.2.6 against try#8de4c7234dd9b97c9d76b58671343fdbbc9a433e+target=x86_64-unknown-linux-musl for musl_upgrade_1_2_5_with_libc_patch_0
[INFO] extracting crate qutex 0.2.6 into /workspace/builds/worker-6-tc1/source
[INFO] started tweaking crates.io crate qutex 0.2.6
[INFO] finished tweaking crates.io crate qutex 0.2.6
[INFO] tweaked toml for crates.io crate qutex 0.2.6 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate qutex 0.2.6 on toolchain 8de4c7234dd9b97c9d76b58671343fdbbc9a433e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate qutex 0.2.6 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" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 07988b4ff4b374b6c5113de8b40fafe68cdcf6ab235eb050afb88e8b8e945b8e
[INFO] running `Command { std: "docker" "start" "-a" "07988b4ff4b374b6c5113de8b40fafe68cdcf6ab235eb050afb88e8b8e945b8e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "07988b4ff4b374b6c5113de8b40fafe68cdcf6ab235eb050afb88e8b8e945b8e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "07988b4ff4b374b6c5113de8b40fafe68cdcf6ab235eb050afb88e8b8e945b8e", kill_on_drop: false }`
[INFO] [stdout] 07988b4ff4b374b6c5113de8b40fafe68cdcf6ab235eb050afb88e8b8e945b8e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "build" "--frozen" "--message-format=json" "--target" "x86_64-unknown-linux-musl", kill_on_drop: false }`
[INFO] [stdout] 908eeeb08890b90188b3275c9bcb3be211097c560e6799dfd6ed8ee5919993bd
[INFO] running `Command { std: "docker" "start" "-a" "908eeeb08890b90188b3275c9bcb3be211097c560e6799dfd6ed8ee5919993bd", kill_on_drop: false }`
[INFO] [stderr]    Compiling crossbeam-utils v0.8.19
[INFO] [stderr]    Compiling futures v0.1.31
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.18
[INFO] [stderr]    Compiling crossbeam-channel v0.5.12
[INFO] [stderr]    Compiling crossbeam-queue v0.3.11
[INFO] [stderr]    Compiling crossbeam-deque v0.8.5
[INFO] [stderr]    Compiling crossbeam v0.8.4
[INFO] [stderr]    Compiling qutex v0.2.6 (/opt/rustwide/workdir)
[INFO] [stdout] warning: method `forget` is never used
[INFO] [stdout]   --> src/qrw_lock.rs:80:15
[INFO] [stdout]    |
[INFO] [stdout] 74 | trait Guard<T>
[INFO] [stdout]    |       ----- method in this trait
[INFO] [stdout] ...
[INFO] [stdout] 80 |     unsafe fn forget(self) {
[INFO] [stdout]    |               ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.80s
[INFO] running `Command { std: "docker" "inspect" "908eeeb08890b90188b3275c9bcb3be211097c560e6799dfd6ed8ee5919993bd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "908eeeb08890b90188b3275c9bcb3be211097c560e6799dfd6ed8ee5919993bd", kill_on_drop: false }`
[INFO] [stdout] 908eeeb08890b90188b3275c9bcb3be211097c560e6799dfd6ed8ee5919993bd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "test" "--frozen" "--no-run" "--message-format=json" "--target" "x86_64-unknown-linux-musl", kill_on_drop: false }`
[INFO] [stdout] f7fc4b078cf8cfd65ca16edae444fd9d0b3fa57df6e30a032a6044ab9bb8b9fe
[INFO] running `Command { std: "docker" "start" "-a" "f7fc4b078cf8cfd65ca16edae444fd9d0b3fa57df6e30a032a6044ab9bb8b9fe", kill_on_drop: false }`
[INFO] [stdout] warning: method `forget` is never used
[INFO] [stdout]   --> src/qrw_lock.rs:80:15
[INFO] [stdout]    |
[INFO] [stdout] 74 | trait Guard<T>
[INFO] [stdout]    |       ----- method in this trait
[INFO] [stdout] ...
[INFO] [stdout] 80 |     unsafe fn forget(self) {
[INFO] [stdout]    |               ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling qutex v0.2.6 (/opt/rustwide/workdir)
[INFO] [stdout] warning: method `forget` is never used
[INFO] [stdout]   --> src/qrw_lock.rs:80:15
[INFO] [stdout]    |
[INFO] [stdout] 74 | trait Guard<T>
[INFO] [stdout]    |       ----- method in this trait
[INFO] [stdout] ...
[INFO] [stdout] 80 |     unsafe fn forget(self) {
[INFO] [stdout]    |               ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1.91s
[INFO] running `Command { std: "docker" "inspect" "f7fc4b078cf8cfd65ca16edae444fd9d0b3fa57df6e30a032a6044ab9bb8b9fe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f7fc4b078cf8cfd65ca16edae444fd9d0b3fa57df6e30a032a6044ab9bb8b9fe", kill_on_drop: false }`
[INFO] [stdout] f7fc4b078cf8cfd65ca16edae444fd9d0b3fa57df6e30a032a6044ab9bb8b9fe
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "test" "--frozen" "--target" "x86_64-unknown-linux-musl", kill_on_drop: false }`
[INFO] [stdout] c8f063f8c421636288c197e845584661c27afcc819bb5c3add58860b59aff975
[INFO] running `Command { std: "docker" "start" "-a" "c8f063f8c421636288c197e845584661c27afcc819bb5c3add58860b59aff975", kill_on_drop: false }`
[INFO] [stderr] warning: method `forget` is never used
[INFO] [stderr]   --> src/qrw_lock.rs:80:15
[INFO] [stderr]    |
[INFO] [stderr] 74 | trait Guard<T>
[INFO] [stderr]    |       ----- method in this trait
[INFO] [stderr] ...
[INFO] [stderr] 80 |     unsafe fn forget(self) {
[INFO] [stderr]    |               ^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `qutex` (lib) generated 1 warning
[INFO] [stderr] warning: `qutex` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/x86_64-unknown-linux-musl/debug/deps/qutex-826da112474aade3)
[INFO] [stdout] 
[INFO] [stdout] running 8 tests
[INFO] [stdout] test qutex::tests::explicit_unlock ... ok
[INFO] [stdout] test qutex::tests::future_guard_drop ... ok
[INFO] [stdout] test qutex::tests::simple ... ok
[INFO] [stdout] test qrw_lock::tests::simple ... ok
[INFO] [stdout] test qutex::tests::concurrent ... ok
[INFO] [stdout] test qrw_lock::tests::concurrent ... ok
[INFO] [stdout] test qrw_lock::tests::multiple_upgrades ... ok
[INFO] [stdout] test qrw_lock::tests::read_write_thread_loop ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 8 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 1.08s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "c8f063f8c421636288c197e845584661c27afcc819bb5c3add58860b59aff975", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c8f063f8c421636288c197e845584661c27afcc819bb5c3add58860b59aff975", kill_on_drop: false }`
[INFO] [stdout] c8f063f8c421636288c197e845584661c27afcc819bb5c3add58860b59aff975