Dec 18 14:37:43.026 INFO checking ktm5e-dice-0.1.0 against try#0b8c5828f68d7b2840b81fa51239346dc97fef5a for pr-54252
Dec 18 14:37:43.026 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-6/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a/reg/ktm5e-dice/0.1.0:/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" "+0b8c5828f68d7b2840b81fa51239346dc97fef5a-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 18 14:37:43.187 INFO [stdout] 40a220a95c14aa53410108c6ce18db9f7a16787e3cf61d73bcf358e41640cbbb
Dec 18 14:37:43.189 INFO running `"docker" "start" "-a" "40a220a95c14aa53410108c6ce18db9f7a16787e3cf61d73bcf358e41640cbbb"`
Dec 18 14:37:44.080 INFO [stderr]     Checking microbench v0.3.3
Dec 18 14:37:44.096 INFO [stderr]     Checking ktm5e-dice v0.1.0 (/opt/crater/workdir)
Dec 18 14:37:45.024 INFO [stderr] warning: variable does not need to be mutable
Dec 18 14:37:45.024 INFO [stderr]   --> src/syntax/mod.rs:59:19
Dec 18 14:37:45.024 INFO [stderr]    |
Dec 18 14:37:45.024 INFO [stderr] 59 |     fn fmt(&self, mut formatter: &mut fmt::Formatter) -> fmt::Result {
Dec 18 14:37:45.024 INFO [stderr]    |                   ----^^^^^^^^^
Dec 18 14:37:45.024 INFO [stderr]    |                   |
Dec 18 14:37:45.024 INFO [stderr]    |                   help: remove this `mut`
Dec 18 14:37:45.024 INFO [stderr]    |
Dec 18 14:37:45.024 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 18 14:37:45.024 INFO [stderr] 
Dec 18 14:37:45.029 INFO [stderr] warning: variable does not need to be mutable
Dec 18 14:37:45.029 INFO [stderr]   --> src/syntax/mod.rs:84:19
Dec 18 14:37:45.029 INFO [stderr]    |
Dec 18 14:37:45.029 INFO [stderr] 84 |     fn fmt(&self, mut formatter: &mut fmt::Formatter) -> fmt::Result {
Dec 18 14:37:45.029 INFO [stderr]    |                   ----^^^^^^^^^
Dec 18 14:37:45.029 INFO [stderr]    |                   |
Dec 18 14:37:45.029 INFO [stderr]    |                   help: remove this `mut`
Dec 18 14:37:45.029 INFO [stderr] 
Dec 18 14:37:45.048 INFO [stderr] warning: the feature `conservative_impl_trait` has been stable since 1.26.0 and no longer requires an attribute to enable
Dec 18 14:37:45.048 INFO [stderr]   --> src/lib.rs:17:12
Dec 18 14:37:45.048 INFO [stderr]    |
Dec 18 14:37:45.048 INFO [stderr] 17 | #![feature(conservative_impl_trait, i128_type)]
Dec 18 14:37:45.048 INFO [stderr]    |            ^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 14:37:45.048 INFO [stderr]    |
Dec 18 14:37:45.048 INFO [stderr]    = note: #[warn(stable_features)] on by default
Dec 18 14:37:45.048 INFO [stderr] 
Dec 18 14:37:45.048 INFO [stderr] warning: the feature `i128_type` has been stable since 1.26.0 and no longer requires an attribute to enable
Dec 18 14:37:45.048 INFO [stderr]   --> src/lib.rs:17:37
Dec 18 14:37:45.048 INFO [stderr]    |
Dec 18 14:37:45.048 INFO [stderr] 17 | #![feature(conservative_impl_trait, i128_type)]
Dec 18 14:37:45.048 INFO [stderr]    |                                     ^^^^^^^^^
Dec 18 14:37:45.048 INFO [stderr] 
Dec 18 14:37:45.585 INFO [stderr] warning: variable does not need to be mutable
Dec 18 14:37:45.585 INFO [stderr]   --> src/syntax/mod.rs:59:19
Dec 18 14:37:45.585 INFO [stderr]    |
Dec 18 14:37:45.585 INFO [stderr] 59 |     fn fmt(&self, mut formatter: &mut fmt::Formatter) -> fmt::Result {
Dec 18 14:37:45.585 INFO [stderr]    |                   ----^^^^^^^^^
Dec 18 14:37:45.585 INFO [stderr]    |                   |
Dec 18 14:37:45.585 INFO [stderr]    |                   help: remove this `mut`
Dec 18 14:37:45.596 INFO [stderr]    |
Dec 18 14:37:45.596 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 18 14:37:45.596 INFO [stderr] 
Dec 18 14:37:45.600 INFO [stderr] warning: variable does not need to be mutable
Dec 18 14:37:45.600 INFO [stderr]   --> src/syntax/mod.rs:84:19
Dec 18 14:37:45.600 INFO [stderr]    |
Dec 18 14:37:45.600 INFO [stderr] 84 |     fn fmt(&self, mut formatter: &mut fmt::Formatter) -> fmt::Result {
Dec 18 14:37:45.601 INFO [stderr]    |                   ----^^^^^^^^^
Dec 18 14:37:45.601 INFO [stderr]    |                   |
Dec 18 14:37:45.601 INFO [stderr]    |                   help: remove this `mut`
Dec 18 14:37:45.601 INFO [stderr] 
Dec 18 14:37:45.644 INFO [stderr] warning: the feature `conservative_impl_trait` has been stable since 1.26.0 and no longer requires an attribute to enable
Dec 18 14:37:45.644 INFO [stderr]   --> src/lib.rs:17:12
Dec 18 14:37:45.644 INFO [stderr]    |
Dec 18 14:37:45.644 INFO [stderr] 17 | #![feature(conservative_impl_trait, i128_type)]
Dec 18 14:37:45.644 INFO [stderr]    |            ^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 14:37:45.645 INFO [stderr]    |
Dec 18 14:37:45.645 INFO [stderr]    = note: #[warn(stable_features)] on by default
Dec 18 14:37:45.645 INFO [stderr] 
Dec 18 14:37:45.645 INFO [stderr] warning: the feature `i128_type` has been stable since 1.26.0 and no longer requires an attribute to enable
Dec 18 14:37:45.645 INFO [stderr]   --> src/lib.rs:17:37
Dec 18 14:37:45.645 INFO [stderr]    |
Dec 18 14:37:45.645 INFO [stderr] 17 | #![feature(conservative_impl_trait, i128_type)]
Dec 18 14:37:45.646 INFO [stderr]    |                                     ^^^^^^^^^
Dec 18 14:37:45.646 INFO [stderr] 
Dec 18 14:37:46.706 INFO [stderr] warning: the feature `i128_type` has been stable since 1.26.0 and no longer requires an attribute to enable
Dec 18 14:37:46.706 INFO [stderr]   --> tests/statistics.rs:15:12
Dec 18 14:37:46.706 INFO [stderr]    |
Dec 18 14:37:46.706 INFO [stderr] 15 | #![feature(i128_type)]
Dec 18 14:37:46.706 INFO [stderr]    |            ^^^^^^^^^
Dec 18 14:37:46.706 INFO [stderr]    |
Dec 18 14:37:46.706 INFO [stderr]    = note: #[warn(stable_features)] on by default
Dec 18 14:37:46.706 INFO [stderr] 
Dec 18 14:37:46.741 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.72s
Dec 18 14:37:47.062 INFO running `"docker" "inspect" "40a220a95c14aa53410108c6ce18db9f7a16787e3cf61d73bcf358e41640cbbb"`
Dec 18 14:37:47.154 INFO running `"docker" "rm" "-f" "40a220a95c14aa53410108c6ce18db9f7a16787e3cf61d73bcf358e41640cbbb"`
Dec 18 14:37:47.250 INFO [stdout] 40a220a95c14aa53410108c6ce18db9f7a16787e3cf61d73bcf358e41640cbbb