[INFO] updating cached repository PhilippRo/TheoBlatt4Nr3
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/PhilippRo/TheoBlatt4Nr3
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/PhilippRo/TheoBlatt4Nr3" "work/ex/pr-62849/sources/master#435236b8877cdb98c82eaebfb7887782277265c5/gh/PhilippRo/TheoBlatt4Nr3"`
[INFO] [stderr] Cloning into 'work/ex/pr-62849/sources/master#435236b8877cdb98c82eaebfb7887782277265c5/gh/PhilippRo/TheoBlatt4Nr3'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/PhilippRo/TheoBlatt4Nr3" "work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/gh/PhilippRo/TheoBlatt4Nr3"`
[INFO] [stderr] Cloning into 'work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/gh/PhilippRo/TheoBlatt4Nr3'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 0e80fdda84bf5803e85c6874c7fa9852a2643783
[INFO] sha for GitHub repo PhilippRo/TheoBlatt4Nr3: 0e80fdda84bf5803e85c6874c7fa9852a2643783
[INFO] validating manifest of PhilippRo/TheoBlatt4Nr3 on toolchain master#435236b8877cdb98c82eaebfb7887782277265c5
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+435236b8877cdb98c82eaebfb7887782277265c5-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of PhilippRo/TheoBlatt4Nr3 on toolchain try#b5c7f157c20453dde8d47371abe73b32351b4e7f
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+b5c7f157c20453dde8d47371abe73b32351b4e7f-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing PhilippRo/TheoBlatt4Nr3
[INFO] finished frobbing PhilippRo/TheoBlatt4Nr3
[INFO] frobbed toml for PhilippRo/TheoBlatt4Nr3 written to work/ex/pr-62849/sources/master#435236b8877cdb98c82eaebfb7887782277265c5/gh/PhilippRo/TheoBlatt4Nr3/Cargo.toml
[INFO] started frobbing PhilippRo/TheoBlatt4Nr3
[INFO] finished frobbing PhilippRo/TheoBlatt4Nr3
[INFO] frobbed toml for PhilippRo/TheoBlatt4Nr3 written to work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/gh/PhilippRo/TheoBlatt4Nr3/Cargo.toml
[INFO] crate PhilippRo/TheoBlatt4Nr3 already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+435236b8877cdb98c82eaebfb7887782277265c5-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+b5c7f157c20453dde8d47371abe73b32351b4e7f-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking PhilippRo/TheoBlatt4Nr3 against try#b5c7f157c20453dde8d47371abe73b32351b4e7f for pr-62849
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-62849/worker-2/try#b5c7f157c20453dde8d47371abe73b32351b4e7f:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/gh/PhilippRo/TheoBlatt4Nr3:/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" "+b5c7f157c20453dde8d47371abe73b32351b4e7f-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 15b8e396eff72fdf0ce8d542efaf65a96e86217e7c18cc130adc6d32b6471cff
[INFO] running `"docker" "start" "-a" "15b8e396eff72fdf0ce8d542efaf65a96e86217e7c18cc130adc6d32b6471cff"`
[INFO] [stderr] warning: unused manifest key: package.cargo-features
[INFO] [stderr]     Checking gnuplot v0.0.31
[INFO] [stderr]     Checking theo3_4 v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `en`
[INFO] [stderr]   --> src/main.rs:33:19
[INFO] [stderr]    |
[INFO] [stderr] 33 | fn calc_av_energy(en: f64) -> f64  {
[INFO] [stderr]    |                   ^^ help: consider prefixing with an underscore: `_en`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `fst_x` is never read
[INFO] [stderr]    --> src/main.rs:101:17
[INFO] [stderr]     |
[INFO] [stderr] 101 |         let mut fst_x = 0.0;
[INFO] [stderr]     |                 ^^^^^
[INFO] [stderr]     |
[INFO] [stderr] note: lint level defined here
[INFO] [stderr]    --> src/main.rs:100:16
[INFO] [stderr]     |
[INFO] [stderr] 100 |         #[warn(unused_assignments)]
[INFO] [stderr]     |                ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `fst_y` is never read
[INFO] [stderr]    --> src/main.rs:103:17
[INFO] [stderr]     |
[INFO] [stderr] 103 |         let mut fst_y = 0.0;
[INFO] [stderr]     |                 ^^^^^
[INFO] [stderr]     |
[INFO] [stderr] note: lint level defined here
[INFO] [stderr]    --> src/main.rs:102:16
[INFO] [stderr]     |
[INFO] [stderr] 102 |         #[warn(unused_assignments)]
[INFO] [stderr]     |                ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `fst_x` is never read
[INFO] [stderr]    --> src/main.rs:132:17
[INFO] [stderr]     |
[INFO] [stderr] 132 |                 fst_x = *sfst_x;
[INFO] [stderr]     |                 ^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `fst_x` is never read
[INFO] [stderr]    --> src/main.rs:143:21
[INFO] [stderr]     |
[INFO] [stderr] 143 |                     fst_x = *x;
[INFO] [stderr]     |                     ^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:26:9
[INFO] [stderr]    |
[INFO] [stderr] 26 |     let mut join = u_eigenvals.into_iter().map(|e| spawn(move||(e, calc_av_energy(e))));
[INFO] [stderr]    |         ----^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:69:29
[INFO] [stderr]    |
[INFO] [stderr] 69 |                         let mut start = peak_e - (e_end - e_start);
[INFO] [stderr]    |                             ----^^^^^
[INFO] [stderr]    |                             |
[INFO] [stderr]    |                             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:70:29
[INFO] [stderr]    |
[INFO] [stderr] 70 |                         let mut end  = peak_e + (e_end - e_start);
[INFO] [stderr]    |                             ----^^^
[INFO] [stderr]    |                             |
[INFO] [stderr]    |                             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:47:9
[INFO] [stderr]    |
[INFO] [stderr] 47 |     let mut result =
[INFO] [stderr]    |         ----^^^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `en`
[INFO] [stderr]   --> src/main.rs:33:19
[INFO] [stderr]    |
[INFO] [stderr] 33 | fn calc_av_energy(en: f64) -> f64  {
[INFO] [stderr]    |                   ^^ help: consider prefixing with an underscore: `_en`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `fst_x` is never read
[INFO] [stderr]    --> src/main.rs:101:17
[INFO] [stderr]     |
[INFO] [stderr] 101 |         let mut fst_x = 0.0;
[INFO] [stderr]     |                 ^^^^^
[INFO] [stderr]     |
[INFO] [stderr] note: lint level defined here
[INFO] [stderr]    --> src/main.rs:100:16
[INFO] [stderr]     |
[INFO] [stderr] 100 |         #[warn(unused_assignments)]
[INFO] [stderr]     |                ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `fst_y` is never read
[INFO] [stderr]    --> src/main.rs:103:17
[INFO] [stderr]     |
[INFO] [stderr] 103 |         let mut fst_y = 0.0;
[INFO] [stderr]     |                 ^^^^^
[INFO] [stderr]     |
[INFO] [stderr] note: lint level defined here
[INFO] [stderr]    --> src/main.rs:102:16
[INFO] [stderr]     |
[INFO] [stderr] 102 |         #[warn(unused_assignments)]
[INFO] [stderr]     |                ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `fst_x` is never read
[INFO] [stderr]    --> src/main.rs:132:17
[INFO] [stderr]     |
[INFO] [stderr] 132 |                 fst_x = *sfst_x;
[INFO] [stderr]     |                 ^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `fst_x` is never read
[INFO] [stderr]    --> src/main.rs:143:21
[INFO] [stderr]     |
[INFO] [stderr] 143 |                     fst_x = *x;
[INFO] [stderr]     |                     ^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:26:9
[INFO] [stderr]    |
[INFO] [stderr] 26 |     let mut join = u_eigenvals.into_iter().map(|e| spawn(move||(e, calc_av_energy(e))));
[INFO] [stderr]    |         ----^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:69:29
[INFO] [stderr]    |
[INFO] [stderr] 69 |                         let mut start = peak_e - (e_end - e_start);
[INFO] [stderr]    |                             ----^^^^^
[INFO] [stderr]    |                             |
[INFO] [stderr]    |                             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:70:29
[INFO] [stderr]    |
[INFO] [stderr] 70 |                         let mut end  = peak_e + (e_end - e_start);
[INFO] [stderr]    |                             ----^^^
[INFO] [stderr]    |                             |
[INFO] [stderr]    |                             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:47:9
[INFO] [stderr]    |
[INFO] [stderr] 47 |     let mut result =
[INFO] [stderr]    |         ----^^^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.80s
[INFO] running `"docker" "inspect" "15b8e396eff72fdf0ce8d542efaf65a96e86217e7c18cc130adc6d32b6471cff"`
[INFO] running `"docker" "rm" "-f" "15b8e396eff72fdf0ce8d542efaf65a96e86217e7c18cc130adc6d32b6471cff"`
[INFO] [stdout] 15b8e396eff72fdf0ce8d542efaf65a96e86217e7c18cc130adc6d32b6471cff