[INFO] cloning repository https://github.com/JoshOrndorff/Casanova
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/JoshOrndorff/Casanova" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJoshOrndorff%2FCasanova", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJoshOrndorff%2FCasanova'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d1ca2682a39a6dc78e4ccf16c12f5a83a8ea95f7
[INFO] checking JoshOrndorff/Casanova against try#45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4 for pr-83744
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJoshOrndorff%2FCasanova" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/JoshOrndorff/Casanova on toolchain 45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/JoshOrndorff/Casanova
[INFO] finished tweaking git repo https://github.com/JoshOrndorff/Casanova
[INFO] tweaked toml for git repo https://github.com/JoshOrndorff/Casanova written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/JoshOrndorff/Casanova already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e52dd400ff57c70d071bae2955fcc61bee7d87083e875a62972fa44dea47a226
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "e52dd400ff57c70d071bae2955fcc61bee7d87083e875a62972fa44dea47a226", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e52dd400ff57c70d071bae2955fcc61bee7d87083e875a62972fa44dea47a226", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e52dd400ff57c70d071bae2955fcc61bee7d87083e875a62972fa44dea47a226", kill_on_drop: false }`
[INFO] [stdout] e52dd400ff57c70d071bae2955fcc61bee7d87083e875a62972fa44dea47a226
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 85641eccd05f6501e874e0a023c28554caa869c83c87721cf1c6fdfed2e7ac9f
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "85641eccd05f6501e874e0a023c28554caa869c83c87721cf1c6fdfed2e7ac9f", kill_on_drop: false }`
[INFO] [stderr]     Checking casanova v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/main.rs:40:26
[INFO] [stdout]    |
[INFO] [stdout] 40 |                 q.append(&mut satisfied); // This line doesn't compile
[INFO] [stdout]    |                          ^^^^^^^^^^^^^^ expected struct `Block`, found `&Block`
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected mutable reference `&mut VecDeque<Block>`
[INFO] [stdout]               found mutable reference `&mut VecDeque<&Block>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `casanova`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/main.rs:40:26
[INFO] [stdout]    |
[INFO] [stdout] 40 |                 q.append(&mut satisfied); // This line doesn't compile
[INFO] [stdout]    |                          ^^^^^^^^^^^^^^ expected struct `Block`, found `&Block`
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected mutable reference `&mut VecDeque<Block>`
[INFO] [stdout]               found mutable reference `&mut VecDeque<&Block>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "85641eccd05f6501e874e0a023c28554caa869c83c87721cf1c6fdfed2e7ac9f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "85641eccd05f6501e874e0a023c28554caa869c83c87721cf1c6fdfed2e7ac9f", kill_on_drop: false }`
[INFO] [stdout] 85641eccd05f6501e874e0a023c28554caa869c83c87721cf1c6fdfed2e7ac9f