Dec 19 08:55:57.611 INFO checking shingtaklam1324/number-theory-rust against master#d99a320cba42f661aebfa1293b7b2ec3603dda75 for pr-56955
Dec 19 08:55:57.611 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-5/master#d99a320cba42f661aebfa1293b7b2ec3603dda75:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/master#d99a320cba42f661aebfa1293b7b2ec3603dda75/gh/shingtaklam1324/number-theory-rust:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+d99a320cba42f661aebfa1293b7b2ec3603dda75-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 19 08:55:58.064 INFO [stdout] ebb2412158e38538ef25cdf47265708626164335ef6a6b4d21f3e5491513f210
Dec 19 08:55:58.065 INFO running `"docker" "start" "-a" "ebb2412158e38538ef25cdf47265708626164335ef6a6b4d21f3e5491513f210"`
Dec 19 08:55:59.684 INFO [stderr]     Checking number-theory v0.1.0 (/opt/crater/workdir)
Dec 19 08:55:59.857 INFO [stderr] warning: constant item is never used: `Zero`
Dec 19 08:55:59.857 INFO [stderr]   --> src/main.rs:12:1
Dec 19 08:55:59.857 INFO [stderr]    |
Dec 19 08:55:59.857 INFO [stderr] 12 | const Zero: Nat<Z> = Nat(Z);
Dec 19 08:55:59.857 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 08:55:59.857 INFO [stderr]    |
Dec 19 08:55:59.857 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 19 08:55:59.857 INFO [stderr] 
Dec 19 08:55:59.857 INFO [stderr] warning: function is never used: `Succ`
Dec 19 08:55:59.857 INFO [stderr]   --> src/main.rs:14:1
Dec 19 08:55:59.857 INFO [stderr]    |
Dec 19 08:55:59.857 INFO [stderr] 14 | fn Succ<A>(d: Nat<A>) -> Nat<S<A>> {
Dec 19 08:55:59.857 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 08:55:59.857 INFO [stderr] 
Dec 19 08:55:59.857 INFO [stderr] warning: the feature `conservative_impl_trait` has been stable since 1.26.0 and no longer requires an attribute to enable
Dec 19 08:55:59.857 INFO [stderr]  --> src/main.rs:1:12
Dec 19 08:55:59.857 INFO [stderr]   |
Dec 19 08:55:59.857 INFO [stderr] 1 | #![feature(conservative_impl_trait)]
Dec 19 08:55:59.857 INFO [stderr]   |            ^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 08:55:59.857 INFO [stderr]   |
Dec 19 08:55:59.857 INFO [stderr]   = note: #[warn(stable_features)] on by default
Dec 19 08:55:59.857 INFO [stderr] 
Dec 19 08:55:59.880 INFO [stderr] warning: constant item is never used: `Zero`
Dec 19 08:55:59.881 INFO [stderr]   --> src/main.rs:12:1
Dec 19 08:55:59.881 INFO [stderr]    |
Dec 19 08:55:59.881 INFO [stderr] 12 | const Zero: Nat<Z> = Nat(Z);
Dec 19 08:55:59.881 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 08:55:59.881 INFO [stderr]    |
Dec 19 08:55:59.881 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 19 08:55:59.881 INFO [stderr] 
Dec 19 08:55:59.881 INFO [stderr] warning: function is never used: `Succ`
Dec 19 08:55:59.881 INFO [stderr]   --> src/main.rs:14:1
Dec 19 08:55:59.881 INFO [stderr]    |
Dec 19 08:55:59.881 INFO [stderr] 14 | fn Succ<A>(d: Nat<A>) -> Nat<S<A>> {
Dec 19 08:55:59.881 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 08:55:59.881 INFO [stderr] 
Dec 19 08:55:59.881 INFO [stderr] warning: the feature `conservative_impl_trait` has been stable since 1.26.0 and no longer requires an attribute to enable
Dec 19 08:55:59.881 INFO [stderr]  --> src/main.rs:1:12
Dec 19 08:55:59.881 INFO [stderr]   |
Dec 19 08:55:59.881 INFO [stderr] 1 | #![feature(conservative_impl_trait)]
Dec 19 08:55:59.881 INFO [stderr]   |            ^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 08:55:59.881 INFO [stderr]   |
Dec 19 08:55:59.881 INFO [stderr]   = note: #[warn(stable_features)] on by default
Dec 19 08:55:59.881 INFO [stderr] 
Dec 19 08:55:59.930 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.27s
Dec 19 08:56:00.524 INFO running `"docker" "inspect" "ebb2412158e38538ef25cdf47265708626164335ef6a6b4d21f3e5491513f210"`
Dec 19 08:56:00.739 INFO running `"docker" "rm" "-f" "ebb2412158e38538ef25cdf47265708626164335ef6a6b4d21f3e5491513f210"`
Dec 19 08:56:00.901 INFO [stdout] ebb2412158e38538ef25cdf47265708626164335ef6a6b4d21f3e5491513f210