[INFO] updating cached repository nao-kobayashi/PrjEuler
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/nao-kobayashi/PrjEuler
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/nao-kobayashi/PrjEuler" "work/ex/pr-60039-1/sources/master#e305df1846a6d985315917ae0c81b74af8b4e641/gh/nao-kobayashi/PrjEuler"`
[INFO] [stderr] Cloning into 'work/ex/pr-60039-1/sources/master#e305df1846a6d985315917ae0c81b74af8b4e641/gh/nao-kobayashi/PrjEuler'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/nao-kobayashi/PrjEuler" "work/ex/pr-60039-1/sources/try#99a7498759a22b5684caf798a98b7e90ad9d2443/gh/nao-kobayashi/PrjEuler"`
[INFO] [stderr] Cloning into 'work/ex/pr-60039-1/sources/try#99a7498759a22b5684caf798a98b7e90ad9d2443/gh/nao-kobayashi/PrjEuler'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 67e78e1230f44ebff5ea7778d1c125608be79dcc
[INFO] sha for GitHub repo nao-kobayashi/PrjEuler: 67e78e1230f44ebff5ea7778d1c125608be79dcc
[INFO] validating manifest of nao-kobayashi/PrjEuler on toolchain master#e305df1846a6d985315917ae0c81b74af8b4e641
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e305df1846a6d985315917ae0c81b74af8b4e641-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of nao-kobayashi/PrjEuler on toolchain try#99a7498759a22b5684caf798a98b7e90ad9d2443
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+99a7498759a22b5684caf798a98b7e90ad9d2443-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing nao-kobayashi/PrjEuler
[INFO] finished frobbing nao-kobayashi/PrjEuler
[INFO] frobbed toml for nao-kobayashi/PrjEuler written to work/ex/pr-60039-1/sources/master#e305df1846a6d985315917ae0c81b74af8b4e641/gh/nao-kobayashi/PrjEuler/Cargo.toml
[INFO] started frobbing nao-kobayashi/PrjEuler
[INFO] finished frobbing nao-kobayashi/PrjEuler
[INFO] frobbed toml for nao-kobayashi/PrjEuler written to work/ex/pr-60039-1/sources/try#99a7498759a22b5684caf798a98b7e90ad9d2443/gh/nao-kobayashi/PrjEuler/Cargo.toml
[INFO] crate nao-kobayashi/PrjEuler already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e305df1846a6d985315917ae0c81b74af8b4e641-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+99a7498759a22b5684caf798a98b7e90ad9d2443-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking nao-kobayashi/PrjEuler against master#e305df1846a6d985315917ae0c81b74af8b4e641 for pr-60039-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-60039-1/worker-7/master#e305df1846a6d985315917ae0c81b74af8b4e641:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-60039-1/sources/master#e305df1846a6d985315917ae0c81b74af8b4e641/gh/nao-kobayashi/PrjEuler:/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" "+e305df1846a6d985315917ae0c81b74af8b4e641-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 61573dd6c274497a9671ed3ecdfb234acf1eb0ec538c82b38a9f0d47c1de329d
[INFO] running `"docker" "start" "-a" "61573dd6c274497a9671ed3ecdfb234acf1eb0ec538c82b38a9f0d47c1de329d"`
[INFO] [stderr]     Checking num-bigint v0.2.2
[INFO] [stderr]     Checking project v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `crate::problem17::*`
[INFO] [stderr]    --> src/main.rs:518:5
[INFO] [stderr]     |
[INFO] [stderr] 518 | use crate::problem17::*;
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::problem17::*`
[INFO] [stderr]    --> src/main.rs:518:5
[INFO] [stderr]     |
[INFO] [stderr] 518 | use crate::problem17::*;
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `r` is never read
[INFO] [stderr]    --> src/main.rs:278:13
[INFO] [stderr]     |
[INFO] [stderr] 278 |     let mut r = 0;
[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: unused variable: `num`
[INFO] [stderr]    --> src/main.rs:308:34
[INFO] [stderr]     |
[INFO] [stderr] 308 |                 .fold(1, |calc, (num, r)| calc * (r + 1));
[INFO] [stderr]     |                                  ^^^ help: consider prefixing with an underscore: `_num`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `a`
[INFO] [stderr]    --> src/main.rs:825:9
[INFO] [stderr]     |
[INFO] [stderr] 825 |     let a = BigInt::from(1);
[INFO] [stderr]     |         ^ help: consider prefixing with an underscore: `_a`
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `c1` is never read
[INFO] [stderr]    --> src/main.rs:906:13
[INFO] [stderr]     |
[INFO] [stderr] 906 |     let mut c1: u64 = 0;
[INFO] [stderr]     |             ^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `c2` is never read
[INFO] [stderr]    --> src/main.rs:907:13
[INFO] [stderr]     |
[INFO] [stderr] 907 |     let mut c2: u64 = 0;
[INFO] [stderr]     |             ^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `c3` is never read
[INFO] [stderr]    --> src/main.rs:908:13
[INFO] [stderr]     |
[INFO] [stderr] 908 |     let mut c3: u64 = 0;
[INFO] [stderr]     |             ^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `c4` is never read
[INFO] [stderr]    --> src/main.rs:909:13
[INFO] [stderr]     |
[INFO] [stderr] 909 |     let mut c4: u64 = 0;
[INFO] [stderr]     |             ^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]    --> src/main.rs:944:17
[INFO] [stderr]     |
[INFO] [stderr] 944 |             for i in 1..*nb {
[INFO] [stderr]     |                 ^ help: consider prefixing with an underscore: `_i`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/main.rs:173:13
[INFO] [stderr]     |
[INFO] [stderr] 173 |         let mut calc = (0..mul_num).fold(1, |mul, h| mul * num_arr[h + i]);
[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: value assigned to `r` is never read
[INFO] [stderr]    --> src/main.rs:278:13
[INFO] [stderr]     |
[INFO] [stderr] 278 |     let mut r = 0;
[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: unused variable: `num`
[INFO] [stderr]    --> src/main.rs:308:34
[INFO] [stderr]     |
[INFO] [stderr] 308 |                 .fold(1, |calc, (num, r)| calc * (r + 1));
[INFO] [stderr]     |                                  ^^^ help: consider prefixing with an underscore: `_num`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `a`
[INFO] [stderr]    --> src/main.rs:825:9
[INFO] [stderr]     |
[INFO] [stderr] 825 |     let a = BigInt::from(1);
[INFO] [stderr]     |         ^ help: consider prefixing with an underscore: `_a`
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `c1` is never read
[INFO] [stderr]    --> src/main.rs:906:13
[INFO] [stderr]     |
[INFO] [stderr] 906 |     let mut c1: u64 = 0;
[INFO] [stderr]     |             ^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `c2` is never read
[INFO] [stderr]    --> src/main.rs:907:13
[INFO] [stderr]     |
[INFO] [stderr] 907 |     let mut c2: u64 = 0;
[INFO] [stderr]     |             ^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `c3` is never read
[INFO] [stderr]    --> src/main.rs:908:13
[INFO] [stderr]     |
[INFO] [stderr] 908 |     let mut c3: u64 = 0;
[INFO] [stderr]     |             ^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `c4` is never read
[INFO] [stderr]    --> src/main.rs:909:13
[INFO] [stderr]     |
[INFO] [stderr] 909 |     let mut c4: u64 = 0;
[INFO] [stderr]     |             ^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]    --> src/main.rs:944:17
[INFO] [stderr]     |
[INFO] [stderr] 944 |             for i in 1..*nb {
[INFO] [stderr]     |                 ^ help: consider prefixing with an underscore: `_i`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/main.rs:173:13
[INFO] [stderr]     |
[INFO] [stderr] 173 |         let mut calc = (0..mul_num).fold(1, |mul, h| mul * num_arr[h + i]);
[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:793:14
[INFO] [stderr]     |
[INFO] [stderr] 793 | fn problem24(mut num: i32) {
[INFO] [stderr]     |              ----^^^
[INFO] [stderr]     |              |
[INFO] [stderr]     |              help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `BUF_SIZE`
[INFO] [stderr]    --> src/main.rs:714:1
[INFO] [stderr]     |
[INFO] [stderr] 714 | const BUF_SIZE: usize = 2048;
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: comparison is useless due to type limits
[INFO] [stderr]    --> src/main.rs:488:11
[INFO] [stderr]     |
[INFO] [stderr] 488 |     while y >= 0 {
[INFO] [stderr]     |           ^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_comparisons)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: comparison is useless due to type limits
[INFO] [stderr]    --> src/main.rs:490:15
[INFO] [stderr]     |
[INFO] [stderr] 490 |         while x >= 0 {
[INFO] [stderr]     |               ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: static variable `proper` should have an upper case name
[INFO] [stderr]  --> src/problem17.rs:4:16
[INFO] [stderr]   |
[INFO] [stderr] 4 |     static ref proper:[usize; 20] = [
[INFO] [stderr]   |                ^^^^^^ help: convert the identifier to upper case: `PROPER`
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(non_upper_case_globals)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: static variable `tenth` should have an upper case name
[INFO] [stderr]   --> src/problem17.rs:28:16
[INFO] [stderr]    |
[INFO] [stderr] 28 |     static ref tenth: [usize; 8] = [
[INFO] [stderr]    |                ^^^^^ help: convert the identifier to upper case: `TENTH`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/main.rs:793:14
[INFO] [stderr]     |
[INFO] [stderr] 793 | fn problem24(mut num: i32) {
[INFO] [stderr]     |              ----^^^
[INFO] [stderr]     |              |
[INFO] [stderr]     |              help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `BUF_SIZE`
[INFO] [stderr]    --> src/main.rs:714:1
[INFO] [stderr]     |
[INFO] [stderr] 714 | const BUF_SIZE: usize = 2048;
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: comparison is useless due to type limits
[INFO] [stderr]    --> src/main.rs:488:11
[INFO] [stderr]     |
[INFO] [stderr] 488 |     while y >= 0 {
[INFO] [stderr]     |           ^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_comparisons)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: comparison is useless due to type limits
[INFO] [stderr]    --> src/main.rs:490:15
[INFO] [stderr]     |
[INFO] [stderr] 490 |         while x >= 0 {
[INFO] [stderr]     |               ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: static variable `proper` should have an upper case name
[INFO] [stderr]  --> src/problem17.rs:4:16
[INFO] [stderr]   |
[INFO] [stderr] 4 |     static ref proper:[usize; 20] = [
[INFO] [stderr]   |                ^^^^^^ help: convert the identifier to upper case: `PROPER`
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(non_upper_case_globals)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: static variable `tenth` should have an upper case name
[INFO] [stderr]   --> src/problem17.rs:28:16
[INFO] [stderr]    |
[INFO] [stderr] 28 |     static ref tenth: [usize; 8] = [
[INFO] [stderr]    |                ^^^^^ help: convert the identifier to upper case: `TENTH`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.40s
[INFO] running `"docker" "inspect" "61573dd6c274497a9671ed3ecdfb234acf1eb0ec538c82b38a9f0d47c1de329d"`
[INFO] running `"docker" "rm" "-f" "61573dd6c274497a9671ed3ecdfb234acf1eb0ec538c82b38a9f0d47c1de329d"`
[INFO] [stdout] 61573dd6c274497a9671ed3ecdfb234acf1eb0ec538c82b38a9f0d47c1de329d