[INFO] cloning repository https://github.com/AntonHermann/Quart
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/AntonHermann/Quart" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAntonHermann%2FQuart", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAntonHermann%2FQuart'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d421ad976f81515007dedebdb2b572d2cb0cac31
[INFO] checking AntonHermann/Quart against try#9c1dcf141bc0875407c4eb36972857bd3db713e2 for pr-81863
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAntonHermann%2FQuart" "/workspace/builds/worker-9/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-9/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/AntonHermann/Quart on toolchain 9c1dcf141bc0875407c4eb36972857bd3db713e2
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9c1dcf141bc0875407c4eb36972857bd3db713e2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/AntonHermann/Quart
[INFO] finished tweaking git repo https://github.com/AntonHermann/Quart
[INFO] tweaked toml for git repo https://github.com/AntonHermann/Quart written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate git repo https://github.com/AntonHermann/Quart already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9c1dcf141bc0875407c4eb36972857bd3db713e2" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded listenfd v0.3.3
[INFO] [stderr]   Downloaded backtrace v0.3.44
[INFO] [stderr]   Downloaded flexi_logger v0.14.8
[INFO] [stderr]   Downloaded string_cache_codegen v0.4.4
[INFO] [stderr]   Downloaded string_cache v0.7.5
[INFO] [stderr]   Downloaded enum-as-inner v0.3.1
[INFO] [stderr]   Downloaded typed-html-macros v0.2.2
[INFO] [stderr]   Downloaded lalrpop-util v0.17.2
[INFO] [stderr]   Downloaded typed-html v0.2.2
[INFO] [stderr]   Downloaded ena v0.13.1
[INFO] [stderr]   Downloaded aho-corasick v0.7.9
[INFO] [stderr]   Downloaded lalrpop v0.17.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "rustops/crates-build-env@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+9c1dcf141bc0875407c4eb36972857bd3db713e2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] dddd4d4f908dd6f57d17c05fca9a756427e0a6f6491868ff8c333924ea2e8273
[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" "dddd4d4f908dd6f57d17c05fca9a756427e0a6f6491868ff8c333924ea2e8273", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dddd4d4f908dd6f57d17c05fca9a756427e0a6f6491868ff8c333924ea2e8273", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dddd4d4f908dd6f57d17c05fca9a756427e0a6f6491868ff8c333924ea2e8273", kill_on_drop: false }`
[INFO] [stdout] dddd4d4f908dd6f57d17c05fca9a756427e0a6f6491868ff8c333924ea2e8273
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "rustops/crates-build-env@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+9c1dcf141bc0875407c4eb36972857bd3db713e2" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 589459777bcaad15d57f8ca4fd39486bf80d8495c94646902cfc2eb74427a465
[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" "589459777bcaad15d57f8ca4fd39486bf80d8495c94646902cfc2eb74427a465", kill_on_drop: false }`
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[INFO] [stderr]     Checking regex-syntax v0.6.14
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[INFO] [stderr]    Compiling typenum v1.11.2
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[INFO] [stderr]    Compiling unicode-segmentation v1.6.0
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[INFO] [stderr]    Compiling block-buffer v0.7.3
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]    Compiling ascii-canvas v2.0.0
[INFO] [stderr]    Compiling sha2 v0.8.1
[INFO] [stderr]     Checking mio-uds v0.6.7
[INFO] [stderr]     Checking backtrace v0.3.44
[INFO] [stderr]     Checking chrono v0.4.10
[INFO] [stderr]     Checking tokio v0.2.13
[INFO] [stderr]    Compiling phf_generator v0.7.24
[INFO] [stderr]    Compiling string_cache_codegen v0.4.4
[INFO] [stderr]     Checking flexi_logger v0.14.8
[INFO] [stderr]    Compiling string_cache v0.7.5
[INFO] [stderr]     Checking quart_lib v0.1.0 (/opt/rustwide/workdir/quart_lib)
[INFO] [stdout] error[E0600]: cannot apply unary operator `!` to type `Option<String>`
[INFO] [stdout]    --> quart_lib/src/board.rs:249:5
[INFO] [stdout]     |
[INFO] [stdout] 249 |     assert!(check_fields(&[p_bdrf, p_bdrf, p_bdrf, p_bdrf]), "all equal");
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ cannot apply unary operator `!`
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0600]: cannot apply unary operator `!` to type `Option<String>`
[INFO] [stdout]    --> quart_lib/src/board.rs:250:5
[INFO] [stdout]     |
[INFO] [stdout] 250 | /     assert!(
[INFO] [stdout] 251 | |         check_fields(&[p_bdrf, p_BdRf, p_bDrf, p_BDrf]),
[INFO] [stdout] 252 | |         "all not flat"
[INFO] [stdout] 253 | |     );
[INFO] [stdout]     | |______^ cannot apply unary operator `!`
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0600]: cannot apply unary operator `!` to type `Option<String>`
[INFO] [stdout]    --> quart_lib/src/board.rs:254:13
[INFO] [stdout]     |
[INFO] [stdout] 254 |     assert!(!check_fields(&[p_bdrf, p_bdrf, p_bdrf, None]), "1 none");
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ cannot apply unary operator `!`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0600]: cannot apply unary operator `!` to type `Option<String>`
[INFO] [stdout]    --> quart_lib/src/board.rs:256:9
[INFO] [stdout]     |
[INFO] [stdout] 256 |         !check_fields(&[p_bdrf, p_BdRf, p_bDrf, p_BDrF]),
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ cannot apply unary operator `!`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 4 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0600`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `quart_lib`
[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] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "589459777bcaad15d57f8ca4fd39486bf80d8495c94646902cfc2eb74427a465", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "589459777bcaad15d57f8ca4fd39486bf80d8495c94646902cfc2eb74427a465", kill_on_drop: false }`
[INFO] [stdout] 589459777bcaad15d57f8ca4fd39486bf80d8495c94646902cfc2eb74427a465