Nov 30 20:20:57.153 INFO checking ktm5e-dice-0.1.0 against master#a49316ddc99d9d595193557fc899f6c52e4d9af9 for pr-56323
Nov 30 20:20:57.153 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56323/worker-4/master#a49316ddc99d9d595193557fc899f6c52e4d9af9:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/pr-56323/master#a49316ddc99d9d595193557fc899f6c52e4d9af9:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +a49316ddc99d9d595193557fc899f6c52e4d9af9-alt check --frozen --all --all-targets" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Nov 30 20:20:57.327 INFO [stdout] 4aadb5a6733a224604a337760371b23e10776712a3dc59bb3edd8c12e37a27dd
Nov 30 20:20:57.329 INFO running `"docker" "start" "-a" "4aadb5a6733a224604a337760371b23e10776712a3dc59bb3edd8c12e37a27dd"`
Nov 30 20:20:57.880 INFO [stderr] usermod: no changes
Nov 30 20:20:58.000 INFO [stderr]     Checking microbench v0.3.3
Nov 30 20:20:58.044 INFO [stderr]     Checking ktm5e-dice v0.1.0 (/source)
Nov 30 20:21:00.288 INFO [stderr] warning: variable does not need to be mutable
Nov 30 20:21:00.289 INFO [stderr]   --> src/syntax/mod.rs:59:19
Nov 30 20:21:00.289 INFO [stderr]    |
Nov 30 20:21:00.289 INFO [stderr] 59 |     fn fmt(&self, mut formatter: &mut fmt::Formatter) -> fmt::Result {
Nov 30 20:21:00.290 INFO [stderr]    |                   ----^^^^^^^^^
Nov 30 20:21:00.290 INFO [stderr]    |                   |
Nov 30 20:21:00.290 INFO [stderr]    |                   help: remove this `mut`
Nov 30 20:21:00.291 INFO [stderr]    |
Nov 30 20:21:00.291 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Nov 30 20:21:00.291 INFO [stderr] 
Nov 30 20:21:00.292 INFO [stderr] warning: variable does not need to be mutable
Nov 30 20:21:00.292 INFO [stderr]   --> src/syntax/mod.rs:84:19
Nov 30 20:21:00.292 INFO [stderr]    |
Nov 30 20:21:00.293 INFO [stderr] 84 |     fn fmt(&self, mut formatter: &mut fmt::Formatter) -> fmt::Result {
Nov 30 20:21:00.293 INFO [stderr]    |                   ----^^^^^^^^^
Nov 30 20:21:00.293 INFO [stderr]    |                   |
Nov 30 20:21:00.293 INFO [stderr]    |                   help: remove this `mut`
Nov 30 20:21:00.294 INFO [stderr] 
Nov 30 20:21:00.376 INFO [stderr] warning: the feature `conservative_impl_trait` has been stable since 1.26.0 and no longer requires an attribute to enable
Nov 30 20:21:00.376 INFO [stderr]   --> src/lib.rs:17:12
Nov 30 20:21:00.376 INFO [stderr]    |
Nov 30 20:21:00.376 INFO [stderr] 17 | #![feature(conservative_impl_trait, i128_type)]
Nov 30 20:21:00.376 INFO [stderr]    |            ^^^^^^^^^^^^^^^^^^^^^^^
Nov 30 20:21:00.376 INFO [stderr]    |
Nov 30 20:21:00.376 INFO [stderr]    = note: #[warn(stable_features)] on by default
Nov 30 20:21:00.376 INFO [stderr] 
Nov 30 20:21:00.376 INFO [stderr] warning: the feature `i128_type` has been stable since 1.26.0 and no longer requires an attribute to enable
Nov 30 20:21:00.376 INFO [stderr]   --> src/lib.rs:17:37
Nov 30 20:21:00.376 INFO [stderr]    |
Nov 30 20:21:00.376 INFO [stderr] 17 | #![feature(conservative_impl_trait, i128_type)]
Nov 30 20:21:00.376 INFO [stderr]    |                                     ^^^^^^^^^
Nov 30 20:21:00.376 INFO [stderr] 
Nov 30 20:21:01.412 INFO [stderr] warning: variable does not need to be mutable
Nov 30 20:21:01.412 INFO [stderr]   --> src/syntax/mod.rs:59:19
Nov 30 20:21:01.412 INFO [stderr]    |
Nov 30 20:21:01.412 INFO [stderr] 59 |     fn fmt(&self, mut formatter: &mut fmt::Formatter) -> fmt::Result {
Nov 30 20:21:01.412 INFO [stderr]    |                   ----^^^^^^^^^
Nov 30 20:21:01.412 INFO [stderr]    |                   |
Nov 30 20:21:01.412 INFO [stderr]    |                   help: remove this `mut`
Nov 30 20:21:01.412 INFO [stderr]    |
Nov 30 20:21:01.412 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Nov 30 20:21:01.412 INFO [stderr] 
Nov 30 20:21:01.420 INFO [stderr] warning: variable does not need to be mutable
Nov 30 20:21:01.420 INFO [stderr]   --> src/syntax/mod.rs:84:19
Nov 30 20:21:01.420 INFO [stderr]    |
Nov 30 20:21:01.420 INFO [stderr] 84 |     fn fmt(&self, mut formatter: &mut fmt::Formatter) -> fmt::Result {
Nov 30 20:21:01.420 INFO [stderr]    |                   ----^^^^^^^^^
Nov 30 20:21:01.420 INFO [stderr]    |                   |
Nov 30 20:21:01.420 INFO [stderr]    |                   help: remove this `mut`
Nov 30 20:21:01.420 INFO [stderr] 
Nov 30 20:21:01.444 INFO [stderr] warning: the feature `conservative_impl_trait` has been stable since 1.26.0 and no longer requires an attribute to enable
Nov 30 20:21:01.444 INFO [stderr]   --> src/lib.rs:17:12
Nov 30 20:21:01.444 INFO [stderr]    |
Nov 30 20:21:01.444 INFO [stderr] 17 | #![feature(conservative_impl_trait, i128_type)]
Nov 30 20:21:01.444 INFO [stderr]    |            ^^^^^^^^^^^^^^^^^^^^^^^
Nov 30 20:21:01.444 INFO [stderr]    |
Nov 30 20:21:01.444 INFO [stderr]    = note: #[warn(stable_features)] on by default
Nov 30 20:21:01.444 INFO [stderr] 
Nov 30 20:21:01.444 INFO [stderr] warning: the feature `i128_type` has been stable since 1.26.0 and no longer requires an attribute to enable
Nov 30 20:21:01.444 INFO [stderr]   --> src/lib.rs:17:37
Nov 30 20:21:01.444 INFO [stderr]    |
Nov 30 20:21:01.444 INFO [stderr] 17 | #![feature(conservative_impl_trait, i128_type)]
Nov 30 20:21:01.444 INFO [stderr]    |                                     ^^^^^^^^^
Nov 30 20:21:01.444 INFO [stderr] 
Nov 30 20:21:03.244 INFO [stderr] warning: the feature `i128_type` has been stable since 1.26.0 and no longer requires an attribute to enable
Nov 30 20:21:03.244 INFO [stderr]   --> tests/statistics.rs:15:12
Nov 30 20:21:03.244 INFO [stderr]    |
Nov 30 20:21:03.244 INFO [stderr] 15 | #![feature(i128_type)]
Nov 30 20:21:03.244 INFO [stderr]    |            ^^^^^^^^^
Nov 30 20:21:03.244 INFO [stderr]    |
Nov 30 20:21:03.244 INFO [stderr]    = note: #[warn(stable_features)] on by default
Nov 30 20:21:03.244 INFO [stderr] 
Nov 30 20:21:03.268 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.36s
Nov 30 20:21:03.270 INFO [stderr] su: No module specific data is present
Nov 30 20:21:03.734 INFO running `"docker" "inspect" "4aadb5a6733a224604a337760371b23e10776712a3dc59bb3edd8c12e37a27dd"`
Nov 30 20:21:03.949 INFO running `"docker" "rm" "-f" "4aadb5a6733a224604a337760371b23e10776712a3dc59bb3edd8c12e37a27dd"`
Nov 30 20:21:04.088 INFO [stdout] 4aadb5a6733a224604a337760371b23e10776712a3dc59bb3edd8c12e37a27dd