[INFO] updating cached repository https://github.com/agarick/muck
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune", kill_on_drop: false }`
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b8e72fd2b590c213d93181a79ab441d24df0e56d
[INFO] checking agarick/muck/b8e72fd2b590c213d93181a79ab441d24df0e56d against try#cac44d9528e3bbbdaa1537d187bd489ccc5de18c for pr-91141
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fagarick%2Fmuck" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/agarick/muck on toolchain cac44d9528e3bbbdaa1537d187bd489ccc5de18c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/agarick/muck
[INFO] finished tweaking git repo https://github.com/agarick/muck
[INFO] tweaked toml for git repo https://github.com/agarick/muck written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/agarick/muck already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "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-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2f77f3a5fc1287157070e73a6441d3a7f6c4712368c4ea17999db77bac44a2e7
[INFO] running `Command { std: "docker" "start" "-a" "2f77f3a5fc1287157070e73a6441d3a7f6c4712368c4ea17999db77bac44a2e7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2f77f3a5fc1287157070e73a6441d3a7f6c4712368c4ea17999db77bac44a2e7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2f77f3a5fc1287157070e73a6441d3a7f6c4712368c4ea17999db77bac44a2e7", kill_on_drop: false }`
[INFO] [stdout] 2f77f3a5fc1287157070e73a6441d3a7f6c4712368c4ea17999db77bac44a2e7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 37c391d296079a8115bc13926c6638de0ece25ff8a6ef462ff358d1eae4feab7
[INFO] running `Command { std: "docker" "start" "-a" "37c391d296079a8115bc13926c6638de0ece25ff8a6ef462ff358d1eae4feab7", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking tack v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/main.rs:373:8
[INFO] [stdout]     |
[INFO] [stdout] 373 |       };
[INFO] [stdout]     |        ^ help: remove this semicolon
[INFO] [stdout] ...
[INFO] [stdout] 400 |     monotonic!(|a, b| a == b)
[INFO] [stdout]     |     ------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stdout]     = note: this warning originates in the macro `monotonic` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/main.rs:373:8
[INFO] [stdout]     |
[INFO] [stdout] 373 |       };
[INFO] [stdout]     |        ^ help: remove this semicolon
[INFO] [stdout] ...
[INFO] [stdout] 403 |     monotonic!(|a, b| a > b)
[INFO] [stdout]     |     ------------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `monotonic` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/main.rs:373:8
[INFO] [stdout]     |
[INFO] [stdout] 373 |       };
[INFO] [stdout]     |        ^ help: remove this semicolon
[INFO] [stdout] ...
[INFO] [stdout] 406 |     monotonic!(|a, b| a >= b)
[INFO] [stdout]     |     ------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `monotonic` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/main.rs:373:8
[INFO] [stdout]     |
[INFO] [stdout] 373 |       };
[INFO] [stdout]     |        ^ help: remove this semicolon
[INFO] [stdout] ...
[INFO] [stdout] 409 |     monotonic!(|a, b| a < b)
[INFO] [stdout]     |     ------------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `monotonic` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/main.rs:373:8
[INFO] [stdout]     |
[INFO] [stdout] 373 |       };
[INFO] [stdout]     |        ^ help: remove this semicolon
[INFO] [stdout] ...
[INFO] [stdout] 412 |     monotonic!(|a, b| a <= b)
[INFO] [stdout]     |     ------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `monotonic` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/main.rs:373:8
[INFO] [stdout]     |
[INFO] [stdout] 373 |       };
[INFO] [stdout]     |        ^ help: remove this semicolon
[INFO] [stdout] ...
[INFO] [stdout] 400 |     monotonic!(|a, b| a == b)
[INFO] [stdout]     |     ------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stdout]     = note: this warning originates in the macro `monotonic` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/main.rs:373:8
[INFO] [stdout]     |
[INFO] [stdout] 373 |       };
[INFO] [stdout]     |        ^ help: remove this semicolon
[INFO] [stdout] ...
[INFO] [stdout] 403 |     monotonic!(|a, b| a > b)
[INFO] [stdout]     |     ------------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `monotonic` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/main.rs:373:8
[INFO] [stdout]     |
[INFO] [stdout] 373 |       };
[INFO] [stdout]     |        ^ help: remove this semicolon
[INFO] [stdout] ...
[INFO] [stdout] 406 |     monotonic!(|a, b| a >= b)
[INFO] [stdout]     |     ------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `monotonic` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/main.rs:373:8
[INFO] [stdout]     |
[INFO] [stdout] 373 |       };
[INFO] [stdout]     |        ^ help: remove this semicolon
[INFO] [stdout] ...
[INFO] [stdout] 409 |     monotonic!(|a, b| a < b)
[INFO] [stdout]     |     ------------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `monotonic` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/main.rs:373:8
[INFO] [stdout]     |
[INFO] [stdout] 373 |       };
[INFO] [stdout]     |        ^ help: remove this semicolon
[INFO] [stdout] ...
[INFO] [stdout] 412 |     monotonic!(|a, b| a <= b)
[INFO] [stdout]     |     ------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `monotonic` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.52s
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "37c391d296079a8115bc13926c6638de0ece25ff8a6ef462ff358d1eae4feab7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "37c391d296079a8115bc13926c6638de0ece25ff8a6ef462ff358d1eae4feab7", kill_on_drop: false }`
[INFO] [stdout] 37c391d296079a8115bc13926c6638de0ece25ff8a6ef462ff358d1eae4feab7