[INFO] fetching crate vmw_backdoor 0.2.1...
[INFO] testing vmw_backdoor-0.2.1 against beta-2022-04-10 for beta-1.61-1
[INFO] extracting crate vmw_backdoor 0.2.1 into /workspace/builds/worker-23/source
[INFO] validating manifest of crates.io crate vmw_backdoor 0.2.1 on toolchain beta-2022-04-10
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate vmw_backdoor 0.2.1
[INFO] finished tweaking crates.io crate vmw_backdoor 0.2.1
[INFO] tweaked toml for crates.io crate vmw_backdoor 0.2.1 written to /workspace/builds/worker-23/source/Cargo.toml
[INFO] crate crates.io crate vmw_backdoor 0.2.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "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-23/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-23/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d3e83790f77b3379f0017739115298be9b30a35fdef407703c6cb4e2854aaf33
[INFO] running `Command { std: "docker" "start" "-a" "d3e83790f77b3379f0017739115298be9b30a35fdef407703c6cb4e2854aaf33", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d3e83790f77b3379f0017739115298be9b30a35fdef407703c6cb4e2854aaf33", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d3e83790f77b3379f0017739115298be9b30a35fdef407703c6cb4e2854aaf33", kill_on_drop: false }`
[INFO] [stdout] d3e83790f77b3379f0017739115298be9b30a35fdef407703c6cb4e2854aaf33
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-23/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-23/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 62b814f8b834d17b903f114a8e04a284d2fd704766d2b1b175920fadb44260f6
[INFO] running `Command { std: "docker" "start" "-a" "62b814f8b834d17b903f114a8e04a284d2fd704766d2b1b175920fadb44260f6", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.26
[INFO] [stderr]    Compiling syn v1.0.69
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling cc v1.0.67
[INFO] [stderr]    Compiling errno v0.2.7
[INFO] [stderr]    Compiling vmw_backdoor v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling thiserror-impl v1.0.24
[INFO] [stderr]    Compiling thiserror v1.0.24
[INFO] [stdout] warning: field is never read: `guard`
[INFO] [stdout]   --> src/erpc.rs:28:5
[INFO] [stdout]    |
[INFO] [stdout] 28 |     guard: &'a mut BackdoorGuard,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] note: `EnhancedChan` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   --> src/erpc.rs:26:10
[INFO] [stdout]    |
[INFO] [stdout] 26 | #[derive(Debug)]
[INFO] [stdout]    |          ^^^^^
[INFO] [stdout]    = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.79s
[INFO] running `Command { std: "docker" "inspect" "62b814f8b834d17b903f114a8e04a284d2fd704766d2b1b175920fadb44260f6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "62b814f8b834d17b903f114a8e04a284d2fd704766d2b1b175920fadb44260f6", kill_on_drop: false }`
[INFO] [stdout] 62b814f8b834d17b903f114a8e04a284d2fd704766d2b1b175920fadb44260f6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-23/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-23/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b5f937e6b6a43d95064be8a6c60eec4fca91331b132d650f093d8022f39be5ad
[INFO] running `Command { std: "docker" "start" "-a" "b5f937e6b6a43d95064be8a6c60eec4fca91331b132d650f093d8022f39be5ad", kill_on_drop: false }`
[INFO] [stdout] warning: field is never read: `guard`
[INFO] [stdout]   --> src/erpc.rs:28:5
[INFO] [stdout]    |
[INFO] [stdout] 28 |     guard: &'a mut BackdoorGuard,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] note: `EnhancedChan` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   --> src/erpc.rs:26:10
[INFO] [stdout]    |
[INFO] [stdout] 26 | #[derive(Debug)]
[INFO] [stdout]    |          ^^^^^
[INFO] [stdout]    = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling vmw_backdoor v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `guard`
[INFO] [stdout]   --> src/erpc.rs:28:5
[INFO] [stdout]    |
[INFO] [stdout] 28 |     guard: &'a mut BackdoorGuard,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] note: `EnhancedChan` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   --> src/erpc.rs:26:10
[INFO] [stdout]    |
[INFO] [stdout] 26 | #[derive(Debug)]
[INFO] [stdout]    |          ^^^^^
[INFO] [stdout]    = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.46s
[INFO] [stderr]   Executable unittests src/lib.rs (/opt/rustwide/target/debug/deps/vmw_backdoor-de841f183f19135b)
[INFO] running `Command { std: "docker" "inspect" "b5f937e6b6a43d95064be8a6c60eec4fca91331b132d650f093d8022f39be5ad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b5f937e6b6a43d95064be8a6c60eec4fca91331b132d650f093d8022f39be5ad", kill_on_drop: false }`
[INFO] [stdout] b5f937e6b6a43d95064be8a6c60eec4fca91331b132d650f093d8022f39be5ad
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-23/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-23/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 9bcdcd81b6220f75b9b0c4e31df7bc3c1d593fefd0aa9a7b4a53ebf35ea48faa
[INFO] running `Command { std: "docker" "start" "-a" "9bcdcd81b6220f75b9b0c4e31df7bc3c1d593fefd0aa9a7b4a53ebf35ea48faa", kill_on_drop: false }`
[INFO] [stderr] warning: field is never read: `guard`
[INFO] [stderr]   --> src/erpc.rs:28:5
[INFO] [stderr]    |
[INFO] [stderr] 28 |     guard: &'a mut BackdoorGuard,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] note: `EnhancedChan` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]   --> src/erpc.rs:26:10
[INFO] [stderr]    |
[INFO] [stderr] 26 | #[derive(Debug)]
[INFO] [stderr]    |          ^^^^^
[INFO] [stderr]    = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: `vmw_backdoor` (lib) generated 1 warning
[INFO] [stderr] warning: `vmw_backdoor` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/vmw_backdoor-de841f183f19135b)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test backdoor::tests::test_magic_string ... 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]    Doc-tests vmw_backdoor
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - (line 23) ... ignored
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 1 ignored; 0 measured; 0 filtered out; finished in 0.02s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "9bcdcd81b6220f75b9b0c4e31df7bc3c1d593fefd0aa9a7b4a53ebf35ea48faa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9bcdcd81b6220f75b9b0c4e31df7bc3c1d593fefd0aa9a7b4a53ebf35ea48faa", kill_on_drop: false }`
[INFO] [stdout] 9bcdcd81b6220f75b9b0c4e31df7bc3c1d593fefd0aa9a7b4a53ebf35ea48faa