[INFO] fetching crate qutex 0.2.6...
[INFO] testing qutex-0.2.6 against try#b83b707f97d809763b7861afa7638871f3339a33 for pr-145838-1
[INFO] extracting crate qutex 0.2.6 into /workspace/builds/worker-1-tc2/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-1-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate qutex 0.2.6 on toolchain b83b707f97d809763b7861afa7638871f3339a33
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "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" "+b83b707f97d809763b7861afa7638871f3339a33" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7d1a93f3710dc8558ed935b17ce10bf41ab804a0a3c369552df16cef8bd4c41c
[INFO] running `Command { std: "docker" "start" "-a" "7d1a93f3710dc8558ed935b17ce10bf41ab804a0a3c369552df16cef8bd4c41c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7d1a93f3710dc8558ed935b17ce10bf41ab804a0a3c369552df16cef8bd4c41c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7d1a93f3710dc8558ed935b17ce10bf41ab804a0a3c369552df16cef8bd4c41c", kill_on_drop: false }`
[INFO] [stdout] 7d1a93f3710dc8558ed935b17ce10bf41ab804a0a3c369552df16cef8bd4c41c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9809144dfb96df2aa1046c0b91bdc91c063511443d97d344e3dab2eb73d1ff44
[INFO] running `Command { std: "docker" "start" "-a" "9809144dfb96df2aa1046c0b91bdc91c063511443d97d344e3dab2eb73d1ff44", kill_on_drop: false }`
[INFO] [stderr]    Compiling crossbeam-utils v0.8.19
[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)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.92s
[INFO] running `Command { std: "docker" "inspect" "9809144dfb96df2aa1046c0b91bdc91c063511443d97d344e3dab2eb73d1ff44", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9809144dfb96df2aa1046c0b91bdc91c063511443d97d344e3dab2eb73d1ff44", kill_on_drop: false }`
[INFO] [stdout] 9809144dfb96df2aa1046c0b91bdc91c063511443d97d344e3dab2eb73d1ff44
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] dd992a53056001725ae015129193d6014416369d3462db1d10871f7eb9c8aa2a
[INFO] running `Command { std: "docker" "start" "-a" "dd992a53056001725ae015129193d6014416369d3462db1d10871f7eb9c8aa2a", 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)]` (part of `#[warn(unused)]`) 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)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.88s
[INFO] running `Command { std: "docker" "inspect" "dd992a53056001725ae015129193d6014416369d3462db1d10871f7eb9c8aa2a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dd992a53056001725ae015129193d6014416369d3462db1d10871f7eb9c8aa2a", kill_on_drop: false }`
[INFO] [stdout] dd992a53056001725ae015129193d6014416369d3462db1d10871f7eb9c8aa2a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 954a49371664525e82ecb6299087981861b091a6beceb3cd64a4b8c89b855391
[INFO] running `Command { std: "docker" "start" "-a" "954a49371664525e82ecb6299087981861b091a6beceb3cd64a4b8c89b855391", 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)]` (part of `#[warn(unused)]`) 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 0.03s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/qutex-6b97876b299f47c9)
[INFO] [stdout] 
[INFO] [stdout] running 8 tests
[INFO] [stdout] test qrw_lock::tests::simple ... ok
[INFO] [stdout] test qutex::tests::explicit_unlock ... ok
[INFO] [stdout] test qutex::tests::simple ... ok
[INFO] [stdout] test qutex::tests::future_guard_drop ... 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 0.78s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests qutex
[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" "954a49371664525e82ecb6299087981861b091a6beceb3cd64a4b8c89b855391", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "954a49371664525e82ecb6299087981861b091a6beceb3cd64a4b8c89b855391", kill_on_drop: false }`
[INFO] [stdout] 954a49371664525e82ecb6299087981861b091a6beceb3cd64a4b8c89b855391