[INFO] fetching crate river-layout-toolkit 0.1.2...
[INFO] testing river-layout-toolkit-0.1.2 against beta-2023-04-20 for beta-1.70-1
[INFO] extracting crate river-layout-toolkit 0.1.2 into /workspace/builds/worker-2-tc2/source
[INFO] validating manifest of crates.io crate river-layout-toolkit 0.1.2 on toolchain beta-2023-04-20
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2023-04-20" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate river-layout-toolkit 0.1.2
[INFO] finished tweaking crates.io crate river-layout-toolkit 0.1.2
[INFO] tweaked toml for crates.io crate river-layout-toolkit 0.1.2 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] crate crates.io crate river-layout-toolkit 0.1.2 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" "+beta-2023-04-20" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded wayrs-client v0.9.0
[INFO] [stderr]   Downloaded wayrs-scanner v0.9.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2023-04-20" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7f6c1213f5055db2459aab970f710155458de99b5b254c3a847240d20676aede
[INFO] running `Command { std: "docker" "start" "-a" "7f6c1213f5055db2459aab970f710155458de99b5b254c3a847240d20676aede", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7f6c1213f5055db2459aab970f710155458de99b5b254c3a847240d20676aede", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7f6c1213f5055db2459aab970f710155458de99b5b254c3a847240d20676aede", kill_on_drop: false }`
[INFO] [stdout] 7f6c1213f5055db2459aab970f710155458de99b5b254c3a847240d20676aede
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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=warn" "-e" "RUSTDOCFLAGS=--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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2023-04-20" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] adf31e41c15180290e6e02d521b2edbe7df7dfde95f0c21f7f0dac0ebeaeab49
[INFO] running `Command { std: "docker" "start" "-a" "adf31e41c15180290e6e02d521b2edbe7df7dfde95f0c21f7f0dac0ebeaeab49", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling proc-macro2 v1.0.56
[INFO] [stderr]    Compiling quote v1.0.26
[INFO] [stderr]    Compiling unicode-ident v1.0.8
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling libc v0.2.141
[INFO] [stderr]    Compiling thiserror v1.0.40
[INFO] [stderr]    Compiling unicode-segmentation v1.10.1
[INFO] [stderr]    Compiling bitflags v1.3.2
[INFO] [stderr]    Compiling static_assertions v1.1.0
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling memoffset v0.7.1
[INFO] [stderr]    Compiling convert_case v0.6.0
[INFO] [stderr]    Compiling quick-xml v0.28.1
[INFO] [stderr]    Compiling syn v2.0.14
[INFO] [stderr]    Compiling nix v0.26.2
[INFO] [stderr]    Compiling thiserror-impl v1.0.40
[INFO] [stderr]    Compiling wayrs-scanner v0.9.0
[INFO] [stderr]    Compiling wayrs-client v0.9.0
[INFO] [stderr]    Compiling river-layout-toolkit v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.27s
[INFO] running `Command { std: "docker" "inspect" "adf31e41c15180290e6e02d521b2edbe7df7dfde95f0c21f7f0dac0ebeaeab49", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "adf31e41c15180290e6e02d521b2edbe7df7dfde95f0c21f7f0dac0ebeaeab49", kill_on_drop: false }`
[INFO] [stdout] adf31e41c15180290e6e02d521b2edbe7df7dfde95f0c21f7f0dac0ebeaeab49
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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=warn" "-e" "RUSTDOCFLAGS=--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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2023-04-20" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d1cfc5f426d58afae5be8cb9a2fc8e10f2c4219a573348b81b557dc1e1acbcac
[INFO] running `Command { std: "docker" "start" "-a" "d1cfc5f426d58afae5be8cb9a2fc8e10f2c4219a573348b81b557dc1e1acbcac", kill_on_drop: false }`
[INFO] [stderr]    Compiling river-layout-toolkit v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0053]: method `user_cmd` has an incompatible type for trait
[INFO] [stdout]   --> examples/test_layout.rs:22:18
[INFO] [stdout]    |
[INFO] [stdout] 22 |         _output: Option<&str>,
[INFO] [stdout]    |                  ^^^^^^^^^^^^
[INFO] [stdout]    |                  |
[INFO] [stdout]    |                  expected `&str`, found `Option<&str>`
[INFO] [stdout]    |                  help: change the parameter type to match the trait: `&str`
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected signature `fn(&mut MyLayout, String, Option<_>, &str) -> Result<_, _>`
[INFO] [stdout]               found signature `fn(&mut MyLayout, String, Option<_>, Option<&str>) -> Result<_, _>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0053]: method `generate_layout` has an incompatible type for trait
[INFO] [stdout]   --> examples/test_layout.rs:33:18
[INFO] [stdout]    |
[INFO] [stdout] 33 |         _output: Option<&str>,
[INFO] [stdout]    |                  ^^^^^^^^^^^^
[INFO] [stdout]    |                  |
[INFO] [stdout]    |                  expected `&str`, found `Option<&str>`
[INFO] [stdout]    |                  help: change the parameter type to match the trait: `&str`
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected signature `fn(&mut MyLayout, _, _, _, _, &str) -> Result<_, _>`
[INFO] [stdout]               found signature `fn(&mut MyLayout, _, _, _, _, Option<&str>) -> Result<_, _>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0053`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `river-layout-toolkit` (example "test_layout") due to 3 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "d1cfc5f426d58afae5be8cb9a2fc8e10f2c4219a573348b81b557dc1e1acbcac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d1cfc5f426d58afae5be8cb9a2fc8e10f2c4219a573348b81b557dc1e1acbcac", kill_on_drop: false }`
[INFO] [stdout] d1cfc5f426d58afae5be8cb9a2fc8e10f2c4219a573348b81b557dc1e1acbcac
