[INFO] fetching crate stackpin 0.0.2...
[INFO] testing stackpin-0.0.2 against 1.55.0 for beta-1.56-1
[INFO] extracting crate stackpin 0.0.2 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate stackpin 0.0.2 on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate stackpin 0.0.2
[INFO] finished tweaking crates.io crate stackpin 0.0.2
[INFO] tweaked toml for crates.io crate stackpin 0.0.2 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate crates.io crate stackpin 0.0.2 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] df5c9a287197623abf094aba386ed1f374016dac7bd7f87ff032348e5eb4d038
[INFO] running `Command { std: "docker" "start" "-a" "df5c9a287197623abf094aba386ed1f374016dac7bd7f87ff032348e5eb4d038", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "df5c9a287197623abf094aba386ed1f374016dac7bd7f87ff032348e5eb4d038", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "df5c9a287197623abf094aba386ed1f374016dac7bd7f87ff032348e5eb4d038", kill_on_drop: false }`
[INFO] [stdout] df5c9a287197623abf094aba386ed1f374016dac7bd7f87ff032348e5eb4d038
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8fe75e2cf2040df1506a6ed47394a14b4f029312095954826a5d58580ff6633e
[INFO] running `Command { std: "docker" "start" "-a" "8fe75e2cf2040df1506a6ed47394a14b4f029312095954826a5d58580ff6633e", kill_on_drop: false }`
[INFO] [stderr]    Compiling stackpin v0.0.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.11s
[INFO] running `Command { std: "docker" "inspect" "8fe75e2cf2040df1506a6ed47394a14b4f029312095954826a5d58580ff6633e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8fe75e2cf2040df1506a6ed47394a14b4f029312095954826a5d58580ff6633e", kill_on_drop: false }`
[INFO] [stdout] 8fe75e2cf2040df1506a6ed47394a14b4f029312095954826a5d58580ff6633e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7628162d6e493b4a5e915c82c594215dd2fb81dae29ec2996b593cbf69ada376
[INFO] running `Command { std: "docker" "start" "-a" "7628162d6e493b4a5e915c82c594215dd2fb81dae29ec2996b593cbf69ada376", kill_on_drop: false }`
[INFO] [stderr]    Compiling stackpin v0.0.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.46s
[INFO] running `Command { std: "docker" "inspect" "7628162d6e493b4a5e915c82c594215dd2fb81dae29ec2996b593cbf69ada376", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7628162d6e493b4a5e915c82c594215dd2fb81dae29ec2996b593cbf69ada376", kill_on_drop: false }`
[INFO] [stdout] 7628162d6e493b4a5e915c82c594215dd2fb81dae29ec2996b593cbf69ada376
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 6220e22e9ea2b3ed8d69596a13de25b5faad0251013684191dad77137a71c932
[INFO] running `Command { std: "docker" "start" "-a" "6220e22e9ea2b3ed8d69596a13de25b5faad0251013684191dad77137a71c932", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/stackpin-4ed0a90814b3a32b)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test tests::let_stack_unmovable ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 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/example_frozentree-2914388b0f0f2ca9)
[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]      Running unittests (/opt/rustwide/target/debug/deps/example_println-caf3153cfe002240)
[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 stackpin
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test src/lib.rs - (line 104) ... ok
[INFO] [stdout] test src/lib.rs - (line 53) ... ok
[INFO] [stdout] test src/lib.rs - (line 30) ... ok
[INFO] [stdout] test src/lib.rs - (line 138) ... ok
[INFO] [stdout] test src/lib.rs - Unpinned (line 299) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.51s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "6220e22e9ea2b3ed8d69596a13de25b5faad0251013684191dad77137a71c932", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6220e22e9ea2b3ed8d69596a13de25b5faad0251013684191dad77137a71c932", kill_on_drop: false }`
[INFO] [stdout] 6220e22e9ea2b3ed8d69596a13de25b5faad0251013684191dad77137a71c932