[INFO] updating cached repository procedural-rust/EverettsHillCipher
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/procedural-rust/EverettsHillCipher
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/procedural-rust/EverettsHillCipher" "work/ex/pr-60162/sources/master#a850a426491e14186af2250549bf41256b5938d2/gh/procedural-rust/EverettsHillCipher"`
[INFO] [stderr] Cloning into 'work/ex/pr-60162/sources/master#a850a426491e14186af2250549bf41256b5938d2/gh/procedural-rust/EverettsHillCipher'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/procedural-rust/EverettsHillCipher" "work/ex/pr-60162/sources/try#06a150c7d11500b41499224f165e9de1de096768/gh/procedural-rust/EverettsHillCipher"`
[INFO] [stderr] Cloning into 'work/ex/pr-60162/sources/try#06a150c7d11500b41499224f165e9de1de096768/gh/procedural-rust/EverettsHillCipher'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] b05f38ff966771b4214ee79b3510ce307b1a98e3
[INFO] sha for GitHub repo procedural-rust/EverettsHillCipher: b05f38ff966771b4214ee79b3510ce307b1a98e3
[INFO] validating manifest of procedural-rust/EverettsHillCipher on toolchain master#a850a426491e14186af2250549bf41256b5938d2
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+a850a426491e14186af2250549bf41256b5938d2-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of procedural-rust/EverettsHillCipher on toolchain try#06a150c7d11500b41499224f165e9de1de096768
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+06a150c7d11500b41499224f165e9de1de096768-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing procedural-rust/EverettsHillCipher
[INFO] finished frobbing procedural-rust/EverettsHillCipher
[INFO] frobbed toml for procedural-rust/EverettsHillCipher written to work/ex/pr-60162/sources/master#a850a426491e14186af2250549bf41256b5938d2/gh/procedural-rust/EverettsHillCipher/Cargo.toml
[INFO] started frobbing procedural-rust/EverettsHillCipher
[INFO] finished frobbing procedural-rust/EverettsHillCipher
[INFO] frobbed toml for procedural-rust/EverettsHillCipher written to work/ex/pr-60162/sources/try#06a150c7d11500b41499224f165e9de1de096768/gh/procedural-rust/EverettsHillCipher/Cargo.toml
[INFO] crate procedural-rust/EverettsHillCipher already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+a850a426491e14186af2250549bf41256b5938d2-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+06a150c7d11500b41499224f165e9de1de096768-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking procedural-rust/EverettsHillCipher against try#06a150c7d11500b41499224f165e9de1de096768 for pr-60162
[INFO] running `"docker" "create" "-v" "/mnt/crater-raid/crater/work/local/target-dirs/pr-60162/worker-0/try#06a150c7d11500b41499224f165e9de1de096768:/opt/crater/target:rw,Z" "-v" "/mnt/crater-raid/crater/work/ex/pr-60162/sources/try#06a150c7d11500b41499224f165e9de1de096768/gh/procedural-rust/EverettsHillCipher:/opt/crater/workdir:ro,Z" "-v" "/mnt/crater-raid/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/crater-raid/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" "+06a150c7d11500b41499224f165e9de1de096768-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 836cfcbc04a4dcd4fd978bbd637e7bc1a5b8c7adc79a0e8ccfb322fee34616cb
[INFO] running `"docker" "start" "-a" "836cfcbc04a4dcd4fd978bbd637e7bc1a5b8c7adc79a0e8ccfb322fee34616cb"`
[INFO] [stderr]     Checking matrix v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: function `GCD` should have a snake case name
[INFO] [stderr]    --> src/lib.rs:263:8
[INFO] [stderr]     |
[INFO] [stderr] 263 | pub fn GCD(x: u32, y: u32) -> u32{
[INFO] [stderr]     |        ^^^ help: convert the identifier to snake case: `gcd`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(non_snake_case)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function `GCD` should have a snake case name
[INFO] [stderr]    --> src/lib.rs:263:8
[INFO] [stderr]     |
[INFO] [stderr] 263 | pub fn GCD(x: u32, y: u32) -> u32{
[INFO] [stderr]     |        ^^^ help: convert the identifier to snake case: `gcd`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(non_snake_case)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::io::BufRead`
[INFO] [stderr]  --> src/main.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 | use std::io::BufRead;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable pattern
[INFO] [stderr]   --> src/main.rs:26:9
[INFO] [stderr]    |
[INFO] [stderr] 25 |         i => i-30,
[INFO] [stderr]    |         - matches any value
[INFO] [stderr] 26 |         _ => 1000,
[INFO] [stderr]    |         ^ unreachable pattern
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unreachable_patterns)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable pattern
[INFO] [stderr]   --> src/main.rs:35:9
[INFO] [stderr]    |
[INFO] [stderr] 34 |         i => (i+30) as u8,
[INFO] [stderr]    |         - matches any value
[INFO] [stderr] 35 |         _ => 0 as u8,
[INFO] [stderr]    |         ^ unreachable pattern
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `file_to_encrypt` is never read
[INFO] [stderr]   --> src/main.rs:50:10
[INFO] [stderr]    |
[INFO] [stderr] 50 |     let mut file_to_encrypt = String::new();
[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 `matrix_size` is never read
[INFO] [stderr]   --> src/main.rs:52:10
[INFO] [stderr]    |
[INFO] [stderr] 52 |     let mut matrix_size: u32 = 0;
[INFO] [stderr]    |             ^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `current_chars` is never read
[INFO] [stderr]    --> src/main.rs:128:3
[INFO] [stderr]     |
[INFO] [stderr] 128 |         current_chars = 0;
[INFO] [stderr]     |         ^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `byte_to_num`
[INFO] [stderr]   --> src/main.rs:21:1
[INFO] [stderr]    |
[INFO] [stderr] 21 | fn byte_to_num(byte: u8) -> u32 {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `num_to_byte`
[INFO] [stderr]   --> src/main.rs:30:1
[INFO] [stderr]    |
[INFO] [stderr] 30 | fn num_to_byte(num: u32) -> u8 {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::io::BufRead`
[INFO] [stderr]  --> src/main.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 | use std::io::BufRead;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable pattern
[INFO] [stderr]   --> src/main.rs:26:9
[INFO] [stderr]    |
[INFO] [stderr] 25 |         i => i-30,
[INFO] [stderr]    |         - matches any value
[INFO] [stderr] 26 |         _ => 1000,
[INFO] [stderr]    |         ^ unreachable pattern
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unreachable_patterns)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable pattern
[INFO] [stderr]   --> src/main.rs:35:9
[INFO] [stderr]    |
[INFO] [stderr] 34 |         i => (i+30) as u8,
[INFO] [stderr]    |         - matches any value
[INFO] [stderr] 35 |         _ => 0 as u8,
[INFO] [stderr]    |         ^ unreachable pattern
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `file_to_encrypt` is never read
[INFO] [stderr]   --> src/main.rs:50:10
[INFO] [stderr]    |
[INFO] [stderr] 50 |     let mut file_to_encrypt = String::new();
[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 `matrix_size` is never read
[INFO] [stderr]   --> src/main.rs:52:10
[INFO] [stderr]    |
[INFO] [stderr] 52 |     let mut matrix_size: u32 = 0;
[INFO] [stderr]    |             ^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `current_chars` is never read
[INFO] [stderr]    --> src/main.rs:128:3
[INFO] [stderr]     |
[INFO] [stderr] 128 |         current_chars = 0;
[INFO] [stderr]     |         ^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `byte_to_num`
[INFO] [stderr]   --> src/main.rs:21:1
[INFO] [stderr]    |
[INFO] [stderr] 21 | fn byte_to_num(byte: u8) -> u32 {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `num_to_byte`
[INFO] [stderr]   --> src/main.rs:30:1
[INFO] [stderr]    |
[INFO] [stderr] 30 | fn num_to_byte(num: u32) -> u8 {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.65s
[INFO] running `"docker" "inspect" "836cfcbc04a4dcd4fd978bbd637e7bc1a5b8c7adc79a0e8ccfb322fee34616cb"`
[INFO] running `"docker" "rm" "-f" "836cfcbc04a4dcd4fd978bbd637e7bc1a5b8c7adc79a0e8ccfb322fee34616cb"`
[INFO] [stdout] 836cfcbc04a4dcd4fd978bbd637e7bc1a5b8c7adc79a0e8ccfb322fee34616cb