[INFO] cloning repository https://github.com/frewsxcv/toggle-grayscale
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/frewsxcv/toggle-grayscale" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffrewsxcv%2Ftoggle-grayscale", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffrewsxcv%2Ftoggle-grayscale'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 8b0a783af016216237421d592ba3a154c5e542f5
[INFO] checking frewsxcv/toggle-grayscale against try#f47dd4da3ae8c32c9e65d307bfe640b143e674df for pr-77526
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffrewsxcv%2Ftoggle-grayscale" "/workspace/builds/worker-11/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-11/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/frewsxcv/toggle-grayscale on toolchain f47dd4da3ae8c32c9e65d307bfe640b143e674df
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/frewsxcv/toggle-grayscale
[INFO] finished tweaking git repo https://github.com/frewsxcv/toggle-grayscale
[INFO] tweaked toml for git repo https://github.com/frewsxcv/toggle-grayscale written to /workspace/builds/worker-11/source/Cargo.toml
[INFO] crate git repo https://github.com/frewsxcv/toggle-grayscale already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded objc-foundation v0.1.1
[INFO] [stderr]   Downloaded cocoa v0.20.2
[INFO] [stderr]   Downloaded sysbar v0.2.0
[INFO] [stderr]   Downloaded core-graphics v0.19.2
[INFO] [stderr]   Downloaded objc_id v0.1.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] bfd83c6b7e16b98d36bcc1236f74cef56a898d134cfd37e0ba35617a48424367
[INFO] running `Command { std: "docker" "start" "-a" "bfd83c6b7e16b98d36bcc1236f74cef56a898d134cfd37e0ba35617a48424367", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bfd83c6b7e16b98d36bcc1236f74cef56a898d134cfd37e0ba35617a48424367", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bfd83c6b7e16b98d36bcc1236f74cef56a898d134cfd37e0ba35617a48424367", kill_on_drop: false }`
[INFO] [stdout] bfd83c6b7e16b98d36bcc1236f74cef56a898d134cfd37e0ba35617a48424367
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6a1507f68e3250513d805a8c149e97055fe4a1893929635925401db3ac9336c4
[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" "6a1507f68e3250513d805a8c149e97055fe4a1893929635925401db3ac9336c4", kill_on_drop: false }`
[INFO] [stderr]     Checking sysbar v0.2.0
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `SysbarImpl`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/sysbar-0.2.0/src/lib.rs:12:16
[INFO] [stdout]    |
[INFO] [stdout] 12 |         Sysbar(SysbarImpl::new(name))
[INFO] [stdout]    |                ^^^^^^^^^^ use of undeclared type `SysbarImpl`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `SysbarImpl` in this scope
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/sysbar-0.2.0/src/lib.rs:8:19
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub struct Sysbar(SysbarImpl);
[INFO] [stdout]   |                   ^^^^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0412, E0433.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0412`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `sysbar`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "6a1507f68e3250513d805a8c149e97055fe4a1893929635925401db3ac9336c4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6a1507f68e3250513d805a8c149e97055fe4a1893929635925401db3ac9336c4", kill_on_drop: false }`
[INFO] [stdout] 6a1507f68e3250513d805a8c149e97055fe4a1893929635925401db3ac9336c4