[INFO] updating cached repository sirkibsirkib/tsp_genetic_alg
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/sirkibsirkib/tsp_genetic_alg
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/sirkibsirkib/tsp_genetic_alg" "work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/sirkibsirkib/tsp_genetic_alg"`
[INFO] [stderr] Cloning into 'work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/sirkibsirkib/tsp_genetic_alg'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/sirkibsirkib/tsp_genetic_alg" "work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/sirkibsirkib/tsp_genetic_alg"`
[INFO] [stderr] Cloning into 'work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/sirkibsirkib/tsp_genetic_alg'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 2bec582bcc0d34f50ec77ff16dcadec74267f4ae
[INFO] sha for GitHub repo sirkibsirkib/tsp_genetic_alg: 2bec582bcc0d34f50ec77ff16dcadec74267f4ae
[INFO] validating manifest of sirkibsirkib/tsp_genetic_alg on toolchain master#60960a260f7b5c695fd0717311d72ce62dd4eb43
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+60960a260f7b5c695fd0717311d72ce62dd4eb43-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of sirkibsirkib/tsp_genetic_alg on toolchain try#266783e4e09e4e9d5307c1c8e695659c58bbcac7
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing sirkibsirkib/tsp_genetic_alg
[INFO] finished frobbing sirkibsirkib/tsp_genetic_alg
[INFO] frobbed toml for sirkibsirkib/tsp_genetic_alg written to work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/sirkibsirkib/tsp_genetic_alg/Cargo.toml
[INFO] started frobbing sirkibsirkib/tsp_genetic_alg
[INFO] finished frobbing sirkibsirkib/tsp_genetic_alg
[INFO] frobbed toml for sirkibsirkib/tsp_genetic_alg written to work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/sirkibsirkib/tsp_genetic_alg/Cargo.toml
[INFO] crate sirkibsirkib/tsp_genetic_alg already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+60960a260f7b5c695fd0717311d72ce62dd4eb43-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking sirkibsirkib/tsp_genetic_alg against master#60960a260f7b5c695fd0717311d72ce62dd4eb43 for pr-63376
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-63376/worker-2/master#60960a260f7b5c695fd0717311d72ce62dd4eb43:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/sirkibsirkib/tsp_genetic_alg:/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" "+60960a260f7b5c695fd0717311d72ce62dd4eb43-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 38ed1800f7a84cfce80785fcde53a3545b12c9a9e6042f51657d7ea921fd15ba
[INFO] running `"docker" "start" "-a" "38ed1800f7a84cfce80785fcde53a3545b12c9a9e6042f51657d7ea921fd15ba"`
[INFO] [stderr]     Checking bidir-map v0.6.0
[INFO] [stderr]     Checking time v0.1.38
[INFO] [stderr]     Checking atty v0.2.3
[INFO] [stderr]     Checking num_cpus v1.7.0
[INFO] [stderr]     Checking clap v2.26.2
[INFO] [stderr]     Checking syncbox v0.2.4
[INFO] [stderr]     Checking cue v0.1.0
[INFO] [stderr]     Checking tsp_genetic_alg v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: the item `File` is imported redundantly
[INFO] [stderr]   --> src/tsp.rs:80:9
[INFO] [stderr]    |
[INFO] [stderr] 4  | use std::fs::File;
[INFO] [stderr]    |     ------------- the item `File` is already imported here
[INFO] [stderr] ...
[INFO] [stderr] 80 |     use std::fs::File;
[INFO] [stderr]    |         ^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: the item `File` is imported redundantly
[INFO] [stderr]   --> src/tsp.rs:80:9
[INFO] [stderr]    |
[INFO] [stderr] 4  | use std::fs::File;
[INFO] [stderr]    |     ------------- the item `File` is already imported here
[INFO] [stderr] ...
[INFO] [stderr] 80 |     use std::fs::File;
[INFO] [stderr]    |         ^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `std::result::Result::<T, E>::is_ok` that must be used
[INFO] [stderr]    --> src/main.rs:106:9
[INFO] [stderr]     |
[INFO] [stderr] 106 |         tsp::write_dist_map(&cities, &distances, &config.dist_path).is_ok();
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]     = note: if you intended to assert that this is ok, consider `.unwrap()` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `std::result::Result::<T, E>::is_ok` that must be used
[INFO] [stderr]   --> src/tsp.rs:88:13
[INFO] [stderr]    |
[INFO] [stderr] 88 | /             write!(
[INFO] [stderr] 89 | |                 &mut writer,
[INFO] [stderr] 90 | |                 "{}\t|{}\t|{}\n",
[INFO] [stderr] 91 | |                 city_map.get_by_first(cid_1).unwrap(),
[INFO] [stderr] 92 | |                 city_map.get_by_first(cid_2).unwrap(),
[INFO] [stderr] 93 | |                 dist_map.get(&(*cid_1, *cid_2)).unwrap(),
[INFO] [stderr] 94 | |             ).is_ok();
[INFO] [stderr]    | |______________________^
[INFO] [stderr]    |
[INFO] [stderr]    = note: if you intended to assert that this is ok, consider `.unwrap()` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `std::result::Result::<T, E>::is_ok` that must be used
[INFO] [stderr]    --> src/main.rs:106:9
[INFO] [stderr]     |
[INFO] [stderr] 106 |         tsp::write_dist_map(&cities, &distances, &config.dist_path).is_ok();
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]     = note: if you intended to assert that this is ok, consider `.unwrap()` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `std::result::Result::<T, E>::is_ok` that must be used
[INFO] [stderr]   --> src/tsp.rs:88:13
[INFO] [stderr]    |
[INFO] [stderr] 88 | /             write!(
[INFO] [stderr] 89 | |                 &mut writer,
[INFO] [stderr] 90 | |                 "{}\t|{}\t|{}\n",
[INFO] [stderr] 91 | |                 city_map.get_by_first(cid_1).unwrap(),
[INFO] [stderr] 92 | |                 city_map.get_by_first(cid_2).unwrap(),
[INFO] [stderr] 93 | |                 dist_map.get(&(*cid_1, *cid_2)).unwrap(),
[INFO] [stderr] 94 | |             ).is_ok();
[INFO] [stderr]    | |______________________^
[INFO] [stderr]    |
[INFO] [stderr]    = note: if you intended to assert that this is ok, consider `.unwrap()` instead
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 9.33s
[INFO] running `"docker" "inspect" "38ed1800f7a84cfce80785fcde53a3545b12c9a9e6042f51657d7ea921fd15ba"`
[INFO] running `"docker" "rm" "-f" "38ed1800f7a84cfce80785fcde53a3545b12c9a9e6042f51657d7ea921fd15ba"`
[INFO] [stdout] 38ed1800f7a84cfce80785fcde53a3545b12c9a9e6042f51657d7ea921fd15ba