Dec 19 08:36:01.121 INFO checking slotbaer/chronow against master#d99a320cba42f661aebfa1293b7b2ec3603dda75 for pr-56955
Dec 19 08:36:01.121 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-4/master#d99a320cba42f661aebfa1293b7b2ec3603dda75:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/master#d99a320cba42f661aebfa1293b7b2ec3603dda75/gh/slotbaer/chronow:/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 08:36:01.542 INFO [stdout] f69bada20f5ebbeb16bb68da942ef1b6312da00cb1d02d20243d9fecc75fe5a0
Dec 19 08:36:01.544 INFO running `"docker" "start" "-a" "f69bada20f5ebbeb16bb68da942ef1b6312da00cb1d02d20243d9fecc75fe5a0"`
Dec 19 08:36:03.568 INFO [stderr]     Checking num v0.1.40
Dec 19 08:36:03.789 INFO [stderr]     Checking chrono v0.4.0
Dec 19 08:36:05.420 INFO [stderr]     Checking chronow v0.1.0 (/opt/crater/workdir)
Dec 19 08:36:05.852 INFO [stderr] warning: variable does not need to be mutable
Dec 19 08:36:05.852 INFO [stderr]   --> src/groups.rs:53:18
Dec 19 08:36:05.852 INFO [stderr]    |
Dec 19 08:36:05.852 INFO [stderr] 53 | pub fn add_it_is(mut set: & mut HashSet<Group>) -> () {
Dec 19 08:36:05.852 INFO [stderr]    |                  ----^^^
Dec 19 08:36:05.852 INFO [stderr]    |                  |
Dec 19 08:36:05.852 INFO [stderr]    |                  help: remove this `mut`
Dec 19 08:36:05.852 INFO [stderr]    |
Dec 19 08:36:05.852 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 19 08:36:05.853 INFO [stderr] 
Dec 19 08:36:05.853 INFO [stderr] warning: variable does not need to be mutable
Dec 19 08:36:05.853 INFO [stderr]   --> src/time_to_groups.rs:73:24
Dec 19 08:36:05.853 INFO [stderr]    |
Dec 19 08:36:05.853 INFO [stderr] 73 | fn minute_before_after(mut set: & mut HashSet<Group>, m: Group, ba: Group) -> ()  {
Dec 19 08:36:05.853 INFO [stderr]    |                        ----^^^
Dec 19 08:36:05.853 INFO [stderr]    |                        |
Dec 19 08:36:05.853 INFO [stderr]    |                        help: remove this `mut`
Dec 19 08:36:05.853 INFO [stderr] 
Dec 19 08:36:05.853 INFO [stderr] warning: variable does not need to be mutable
Dec 19 08:36:05.853 INFO [stderr]   --> src/time_to_groups.rs:79:18
Dec 19 08:36:05.853 INFO [stderr]    |
Dec 19 08:36:05.853 INFO [stderr] 79 | fn minute_before(mut set: & mut HashSet<Group>, m: Group) -> () {
Dec 19 08:36:05.853 INFO [stderr]    |                  ----^^^
Dec 19 08:36:05.853 INFO [stderr]    |                  |
Dec 19 08:36:05.853 INFO [stderr]    |                  help: remove this `mut`
Dec 19 08:36:05.853 INFO [stderr] 
Dec 19 08:36:05.853 INFO [stderr] warning: variable does not need to be mutable
Dec 19 08:36:05.853 INFO [stderr]   --> src/time_to_groups.rs:84:17
Dec 19 08:36:05.853 INFO [stderr]    |
Dec 19 08:36:05.853 INFO [stderr] 84 | fn minute_after(mut set: & mut HashSet<Group>, m: Group) -> () {
Dec 19 08:36:05.853 INFO [stderr]    |                 ----^^^
Dec 19 08:36:05.853 INFO [stderr]    |                 |
Dec 19 08:36:05.853 INFO [stderr]    |                 help: remove this `mut`
Dec 19 08:36:05.853 INFO [stderr] 
Dec 19 08:36:05.853 INFO [stderr] warning: variable does not need to be mutable
Dec 19 08:36:05.853 INFO [stderr]   --> src/time_to_groups.rs:89:19
Dec 19 08:36:05.853 INFO [stderr]    |
Dec 19 08:36:05.853 INFO [stderr] 89 | fn minute_ba_half(mut set: & mut HashSet<Group>, ba: Group) -> () {
Dec 19 08:36:05.853 INFO [stderr]    |                   ----^^^
Dec 19 08:36:05.853 INFO [stderr]    |                   |
Dec 19 08:36:05.853 INFO [stderr]    |                   help: remove this `mut`
Dec 19 08:36:05.853 INFO [stderr] 
Dec 19 08:36:05.853 INFO [stderr] warning: constant item is never used: `MINUTES_THREEQUARTER`
Dec 19 08:36:05.853 INFO [stderr]   --> src/groups.rs:30:1
Dec 19 08:36:05.853 INFO [stderr]    |
Dec 19 08:36:05.853 INFO [stderr] 30 | pub const MINUTES_THREEQUARTER: Group = Group { base: 22, length: 11};
Dec 19 08:36:05.853 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 08:36:05.853 INFO [stderr]    |
Dec 19 08:36:05.853 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 19 08:36:05.853 INFO [stderr] 
Dec 19 08:36:05.853 INFO [stderr] warning: function is never used: `get_it_is`
Dec 19 08:36:05.853 INFO [stderr]   --> src/groups.rs:48:1
Dec 19 08:36:05.853 INFO [stderr]    |
Dec 19 08:36:05.853 INFO [stderr] 48 | pub fn get_it_is() -> HashSet<Group> {
Dec 19 08:36:05.853 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 08:36:05.853 INFO [stderr] 
Dec 19 08:36:05.853 INFO [stderr] warning: function is never used: `remove_it_is`
Dec 19 08:36:05.853 INFO [stderr]   --> src/groups.rs:58:1
Dec 19 08:36:05.853 INFO [stderr]    |
Dec 19 08:36:05.853 INFO [stderr] 58 | pub fn remove_it_is(set: & mut HashSet<Group>) -> () {
Dec 19 08:36:05.853 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 08:36:05.853 INFO [stderr] 
Dec 19 08:36:05.853 INFO [stderr] warning: method is never used: `set_it_is`
Dec 19 08:36:05.853 INFO [stderr]   --> src/state.rs:52:5
Dec 19 08:36:05.853 INFO [stderr]    |
Dec 19 08:36:05.853 INFO [stderr] 52 |     pub fn set_it_is(mut self, is_it_on: bool) -> () {
Dec 19 08:36:05.853 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 08:36:05.853 INFO [stderr] 
Dec 19 08:36:05.864 INFO [stderr] warning: variable does not need to be mutable
Dec 19 08:36:05.864 INFO [stderr]   --> src/groups.rs:53:18
Dec 19 08:36:05.864 INFO [stderr]    |
Dec 19 08:36:05.864 INFO [stderr] 53 | pub fn add_it_is(mut set: & mut HashSet<Group>) -> () {
Dec 19 08:36:05.864 INFO [stderr]    |                  ----^^^
Dec 19 08:36:05.864 INFO [stderr]    |                  |
Dec 19 08:36:05.864 INFO [stderr]    |                  help: remove this `mut`
Dec 19 08:36:05.864 INFO [stderr]    |
Dec 19 08:36:05.865 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 19 08:36:05.865 INFO [stderr] 
Dec 19 08:36:05.884 INFO [stderr] warning: variable does not need to be mutable
Dec 19 08:36:05.884 INFO [stderr]   --> src/time_to_groups.rs:73:24
Dec 19 08:36:05.884 INFO [stderr]    |
Dec 19 08:36:05.884 INFO [stderr] 73 | fn minute_before_after(mut set: & mut HashSet<Group>, m: Group, ba: Group) -> ()  {
Dec 19 08:36:05.884 INFO [stderr]    |                        ----^^^
Dec 19 08:36:05.884 INFO [stderr]    |                        |
Dec 19 08:36:05.884 INFO [stderr]    |                        help: remove this `mut`
Dec 19 08:36:05.884 INFO [stderr] 
Dec 19 08:36:05.884 INFO [stderr] warning: variable does not need to be mutable
Dec 19 08:36:05.884 INFO [stderr]   --> src/time_to_groups.rs:79:18
Dec 19 08:36:05.885 INFO [stderr]    |
Dec 19 08:36:05.885 INFO [stderr] 79 | fn minute_before(mut set: & mut HashSet<Group>, m: Group) -> () {
Dec 19 08:36:05.885 INFO [stderr]    |                  ----^^^
Dec 19 08:36:05.885 INFO [stderr]    |                  |
Dec 19 08:36:05.885 INFO [stderr]    |                  help: remove this `mut`
Dec 19 08:36:05.885 INFO [stderr] 
Dec 19 08:36:05.892 INFO [stderr] warning: variable does not need to be mutable
Dec 19 08:36:05.892 INFO [stderr]   --> src/time_to_groups.rs:84:17
Dec 19 08:36:05.892 INFO [stderr]    |
Dec 19 08:36:05.892 INFO [stderr] 84 | fn minute_after(mut set: & mut HashSet<Group>, m: Group) -> () {
Dec 19 08:36:05.892 INFO [stderr]    |                 ----^^^
Dec 19 08:36:05.896 INFO [stderr]    |                 |
Dec 19 08:36:05.896 INFO [stderr]    |                 help: remove this `mut`
Dec 19 08:36:05.896 INFO [stderr] 
Dec 19 08:36:05.897 INFO [stderr] warning: variable does not need to be mutable
Dec 19 08:36:05.897 INFO [stderr]   --> src/time_to_groups.rs:89:19
Dec 19 08:36:05.897 INFO [stderr]    |
Dec 19 08:36:05.897 INFO [stderr] 89 | fn minute_ba_half(mut set: & mut HashSet<Group>, ba: Group) -> () {
Dec 19 08:36:05.897 INFO [stderr]    |                   ----^^^
Dec 19 08:36:05.897 INFO [stderr]    |                   |
Dec 19 08:36:05.897 INFO [stderr]    |                   help: remove this `mut`
Dec 19 08:36:05.897 INFO [stderr] 
Dec 19 08:36:05.899 INFO [stderr] warning: constant item is never used: `MINUTES_THREEQUARTER`
Dec 19 08:36:05.899 INFO [stderr]   --> src/groups.rs:30:1
Dec 19 08:36:05.899 INFO [stderr]    |
Dec 19 08:36:05.899 INFO [stderr] 30 | pub const MINUTES_THREEQUARTER: Group = Group { base: 22, length: 11};
Dec 19 08:36:05.899 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 08:36:05.899 INFO [stderr]    |
Dec 19 08:36:05.899 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 19 08:36:05.899 INFO [stderr] 
Dec 19 08:36:05.900 INFO [stderr] warning: function is never used: `get_it_is`
Dec 19 08:36:05.900 INFO [stderr]   --> src/groups.rs:48:1
Dec 19 08:36:05.900 INFO [stderr]    |
Dec 19 08:36:05.900 INFO [stderr] 48 | pub fn get_it_is() -> HashSet<Group> {
Dec 19 08:36:05.900 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 08:36:05.900 INFO [stderr] 
Dec 19 08:36:05.900 INFO [stderr] warning: function is never used: `remove_it_is`
Dec 19 08:36:05.900 INFO [stderr]   --> src/groups.rs:58:1
Dec 19 08:36:05.900 INFO [stderr]    |
Dec 19 08:36:05.900 INFO [stderr] 58 | pub fn remove_it_is(set: & mut HashSet<Group>) -> () {
Dec 19 08:36:05.900 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 08:36:05.900 INFO [stderr] 
Dec 19 08:36:05.900 INFO [stderr] warning: method is never used: `set_it_is`
Dec 19 08:36:05.900 INFO [stderr]   --> src/state.rs:52:5
Dec 19 08:36:05.900 INFO [stderr]    |
Dec 19 08:36:05.900 INFO [stderr] 52 |     pub fn set_it_is(mut self, is_it_on: bool) -> () {
Dec 19 08:36:05.900 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 08:36:05.900 INFO [stderr] 
Dec 19 08:36:05.968 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.43s
Dec 19 08:36:06.864 INFO running `"docker" "inspect" "f69bada20f5ebbeb16bb68da942ef1b6312da00cb1d02d20243d9fecc75fe5a0"`
Dec 19 08:36:07.178 INFO running `"docker" "rm" "-f" "f69bada20f5ebbeb16bb68da942ef1b6312da00cb1d02d20243d9fecc75fe5a0"`
Dec 19 08:36:07.455 INFO [stdout] f69bada20f5ebbeb16bb68da942ef1b6312da00cb1d02d20243d9fecc75fe5a0