[INFO] cloning repository https://github.com/procedural-rust/EverettsHillCipher
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/procedural-rust/EverettsHillCipher" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fprocedural-rust%2FEverettsHillCipher", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fprocedural-rust%2FEverettsHillCipher'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b05f38ff966771b4214ee79b3510ce307b1a98e3
[INFO] checking procedural-rust/EverettsHillCipher against master#3350c1eb3fd8fe1bee1ed4c76944d707bd256876 for pr-140558
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fprocedural-rust%2FEverettsHillCipher" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/procedural-rust/EverettsHillCipher on toolchain 3350c1eb3fd8fe1bee1ed4c76944d707bd256876
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3350c1eb3fd8fe1bee1ed4c76944d707bd256876" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/procedural-rust/EverettsHillCipher
[INFO] finished tweaking git repo https://github.com/procedural-rust/EverettsHillCipher
[INFO] tweaked toml for git repo https://github.com/procedural-rust/EverettsHillCipher written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/procedural-rust/EverettsHillCipher already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3350c1eb3fd8fe1bee1ed4c76944d707bd256876" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+3350c1eb3fd8fe1bee1ed4c76944d707bd256876" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 95312c6769ec47d8afc5589e0d44dcaecdd8044e179565984cdd0246cf184bcf
[INFO] running `Command { std: "docker" "start" "-a" "95312c6769ec47d8afc5589e0d44dcaecdd8044e179565984cdd0246cf184bcf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "95312c6769ec47d8afc5589e0d44dcaecdd8044e179565984cdd0246cf184bcf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "95312c6769ec47d8afc5589e0d44dcaecdd8044e179565984cdd0246cf184bcf", kill_on_drop: false }`
[INFO] [stdout] 95312c6769ec47d8afc5589e0d44dcaecdd8044e179565984cdd0246cf184bcf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+3350c1eb3fd8fe1bee1ed4c76944d707bd256876" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1f47472e66d85bdf1a20e7e8422c1081f1d87b9c8467d10285b073213ef90de0
[INFO] running `Command { std: "docker" "start" "-a" "1f47472e66d85bdf1a20e7e8422c1081f1d87b9c8467d10285b073213ef90de0", kill_on_drop: false }`
[INFO] [stderr]     Checking matrix v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function `GCD` should have a snake case name
[INFO] [stdout]    --> src/lib.rs:263:8
[INFO] [stdout]     |
[INFO] [stdout] 263 | pub fn GCD(x: u32, y: u32) -> u32{
[INFO] [stdout]     |        ^^^ help: convert the identifier to snake case: `gcd`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `GCD` should have a snake case name
[INFO] [stdout]    --> src/lib.rs:263:8
[INFO] [stdout]     |
[INFO] [stdout] 263 | pub fn GCD(x: u32, y: u32) -> u32{
[INFO] [stdout]     |        ^^^ help: convert the identifier to snake case: `gcd`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::io::BufRead`
[INFO] [stdout]  --> src/main.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use std::io::BufRead;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::io::BufRead`
[INFO] [stdout]  --> src/main.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use std::io::BufRead;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]   --> src/main.rs:26:9
[INFO] [stdout]    |
[INFO] [stdout] 26 |         _ => 1000,
[INFO] [stdout]    |         ^ no value can reach this
[INFO] [stdout]    |
[INFO] [stdout] note: multiple earlier patterns match some of the same values
[INFO] [stdout]   --> src/main.rs:26:9
[INFO] [stdout]    |
[INFO] [stdout] 23 |         10 => 0,
[INFO] [stdout]    |         -- matches some of the same values
[INFO] [stdout] 24 |         13 => 1,
[INFO] [stdout]    |         -- matches some of the same values
[INFO] [stdout] 25 |         i => i-30,
[INFO] [stdout]    |         - matches some of the same values
[INFO] [stdout] 26 |         _ => 1000,
[INFO] [stdout]    |         ^ collectively making this unreachable
[INFO] [stdout]    = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]   --> src/main.rs:26:9
[INFO] [stdout]    |
[INFO] [stdout] 26 |         _ => 1000,
[INFO] [stdout]    |         ^ no value can reach this
[INFO] [stdout]    |
[INFO] [stdout] note: multiple earlier patterns match some of the same values
[INFO] [stdout]   --> src/main.rs:26:9
[INFO] [stdout]    |
[INFO] [stdout] 23 |         10 => 0,
[INFO] [stdout]    |         -- matches some of the same values
[INFO] [stdout] 24 |         13 => 1,
[INFO] [stdout]    |         -- matches some of the same values
[INFO] [stdout] 25 |         i => i-30,
[INFO] [stdout]    |         - matches some of the same values
[INFO] [stdout] 26 |         _ => 1000,
[INFO] [stdout]    |         ^ collectively making this unreachable
[INFO] [stdout]    = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]   --> src/main.rs:35:9
[INFO] [stdout]    |
[INFO] [stdout] 35 |         _ => 0 as u8,
[INFO] [stdout]    |         ^ no value can reach this
[INFO] [stdout]    |
[INFO] [stdout] note: multiple earlier patterns match some of the same values
[INFO] [stdout]   --> src/main.rs:35:9
[INFO] [stdout]    |
[INFO] [stdout] 32 |         0 => 10 as u8,
[INFO] [stdout]    |         - matches some of the same values
[INFO] [stdout] 33 |         1 => 13 as u8,
[INFO] [stdout]    |         - matches some of the same values
[INFO] [stdout] 34 |         i => (i+30) as u8,
[INFO] [stdout]    |         - matches some of the same values
[INFO] [stdout] 35 |         _ => 0 as u8,
[INFO] [stdout]    |         ^ collectively making this unreachable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `file_to_encrypt` is never read
[INFO] [stdout]   --> src/main.rs:50:10
[INFO] [stdout]    |
[INFO] [stdout] 50 |     let mut file_to_encrypt = String::new();
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `matrix_size` is never read
[INFO] [stdout]   --> src/main.rs:52:10
[INFO] [stdout]    |
[INFO] [stdout] 52 |     let mut matrix_size: u32 = 0;
[INFO] [stdout]    |             ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `current_chars` is never read
[INFO] [stdout]    --> src/main.rs:128:3
[INFO] [stdout]     |
[INFO] [stdout] 128 |         current_chars = 0;
[INFO] [stdout]     |         ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]   --> src/main.rs:35:9
[INFO] [stdout]    |
[INFO] [stdout] 35 |         _ => 0 as u8,
[INFO] [stdout]    |         ^ no value can reach this
[INFO] [stdout]    |
[INFO] [stdout] note: multiple earlier patterns match some of the same values
[INFO] [stdout]   --> src/main.rs:35:9
[INFO] [stdout]    |
[INFO] [stdout] 32 |         0 => 10 as u8,
[INFO] [stdout]    |         - matches some of the same values
[INFO] [stdout] 33 |         1 => 13 as u8,
[INFO] [stdout]    |         - matches some of the same values
[INFO] [stdout] 34 |         i => (i+30) as u8,
[INFO] [stdout]    |         - matches some of the same values
[INFO] [stdout] 35 |         _ => 0 as u8,
[INFO] [stdout]    |         ^ collectively making this unreachable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `file_to_encrypt` is never read
[INFO] [stdout]   --> src/main.rs:50:10
[INFO] [stdout]    |
[INFO] [stdout] 50 |     let mut file_to_encrypt = String::new();
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `matrix_size` is never read
[INFO] [stdout]   --> src/main.rs:52:10
[INFO] [stdout]    |
[INFO] [stdout] 52 |     let mut matrix_size: u32 = 0;
[INFO] [stdout]    |             ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `current_chars` is never read
[INFO] [stdout]    --> src/main.rs:128:3
[INFO] [stdout]     |
[INFO] [stdout] 128 |         current_chars = 0;
[INFO] [stdout]     |         ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `byte_to_num` is never used
[INFO] [stdout]   --> src/main.rs:21:4
[INFO] [stdout]    |
[INFO] [stdout] 21 | fn byte_to_num(byte: u8) -> u32 {
[INFO] [stdout]    |    ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `num_to_byte` is never used
[INFO] [stdout]   --> src/main.rs:30:4
[INFO] [stdout]    |
[INFO] [stdout] 30 | fn num_to_byte(num: u32) -> u8 {
[INFO] [stdout]    |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `byte_to_num` is never used
[INFO] [stdout]   --> src/main.rs:21:4
[INFO] [stdout]    |
[INFO] [stdout] 21 | fn byte_to_num(byte: u8) -> u32 {
[INFO] [stdout]    |    ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `num_to_byte` is never used
[INFO] [stdout]   --> src/main.rs:30:4
[INFO] [stdout]    |
[INFO] [stdout] 30 | fn num_to_byte(num: u32) -> u8 {
[INFO] [stdout]    |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.24s
[INFO] running `Command { std: "docker" "inspect" "1f47472e66d85bdf1a20e7e8422c1081f1d87b9c8467d10285b073213ef90de0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1f47472e66d85bdf1a20e7e8422c1081f1d87b9c8467d10285b073213ef90de0", kill_on_drop: false }`
[INFO] [stdout] 1f47472e66d85bdf1a20e7e8422c1081f1d87b9c8467d10285b073213ef90de0
