[INFO] cloning repository https://github.com/maff-maier/crypto_labs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/maff-maier/crypto_labs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmaff-maier%2Fcrypto_labs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmaff-maier%2Fcrypto_labs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 8398cb644417888f8d7600f6734fa0be4077d479
[INFO] testing maff-maier/crypto_labs against master#ff2c56344c764af598ad33027e9c7a48881808ef for pr-118825
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmaff-maier%2Fcrypto_labs" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/maff-maier/crypto_labs on toolchain ff2c56344c764af598ad33027e9c7a48881808ef
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ff2c56344c764af598ad33027e9c7a48881808ef" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/maff-maier/crypto_labs
[INFO] finished tweaking git repo https://github.com/maff-maier/crypto_labs
[INFO] tweaked toml for git repo https://github.com/maff-maier/crypto_labs written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/maff-maier/crypto_labs 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" "+ff2c56344c764af598ad33027e9c7a48881808ef" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds
[ERROR] this task or one of its parent failed!
[ERROR] no output for 300 seconds
[ERROR] note: run with `RUST_BACKTRACE=1` to display a backtrace.
[INFO] testing maff-maier/crypto_labs against try#5e4273472e1b2f223618a9b3def795f6224f241d for pr-118825
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmaff-maier%2Fcrypto_labs" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/maff-maier/crypto_labs on toolchain 5e4273472e1b2f223618a9b3def795f6224f241d
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+5e4273472e1b2f223618a9b3def795f6224f241d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/maff-maier/crypto_labs
[INFO] finished tweaking git repo https://github.com/maff-maier/crypto_labs
[INFO] tweaked toml for git repo https://github.com/maff-maier/crypto_labs written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/maff-maier/crypto_labs 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" "+5e4273472e1b2f223618a9b3def795f6224f241d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds
[INFO] testing maff-maier/crypto_labs against try#5e4273472e1b2f223618a9b3def795f6224f241d for pr-118825
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmaff-maier%2Fcrypto_labs" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/maff-maier/crypto_labs on toolchain 5e4273472e1b2f223618a9b3def795f6224f241d
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+5e4273472e1b2f223618a9b3def795f6224f241d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/maff-maier/crypto_labs
[INFO] finished tweaking git repo https://github.com/maff-maier/crypto_labs
[INFO] tweaked toml for git repo https://github.com/maff-maier/crypto_labs written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/maff-maier/crypto_labs 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" "+5e4273472e1b2f223618a9b3def795f6224f241d" "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]  Downloading crates ...
[INFO] [stderr]   Downloaded matrix v0.22.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+5e4273472e1b2f223618a9b3def795f6224f241d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] aace94fd8822aca05a4f672efddd91a391d1c7b1fe6578155fb02749cd5c89c6
[INFO] running `Command { std: "docker" "start" "-a" "aace94fd8822aca05a4f672efddd91a391d1c7b1fe6578155fb02749cd5c89c6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "aace94fd8822aca05a4f672efddd91a391d1c7b1fe6578155fb02749cd5c89c6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aace94fd8822aca05a4f672efddd91a391d1c7b1fe6578155fb02749cd5c89c6", kill_on_drop: false }`
[INFO] [stdout] aace94fd8822aca05a4f672efddd91a391d1c7b1fe6578155fb02749cd5c89c6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+5e4273472e1b2f223618a9b3def795f6224f241d" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8a450e524a5a7d8da75d11ac6114e1eac365b87cd6080398b1f9a3f7393438b2
[INFO] running `Command { std: "docker" "start" "-a" "8a450e524a5a7d8da75d11ac6114e1eac365b87cd6080398b1f9a3f7393438b2", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling num-complex v0.2.4
[INFO] [stderr]    Compiling matrix v0.22.0
[INFO] [stderr]    Compiling code v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `result_matrix`
[INFO] [stdout]   --> src/diophant.rs:48:9
[INFO] [stdout]    |
[INFO] [stdout] 48 |     let result_matrix: Compressed<i32>;
[INFO] [stdout]    |         ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_result_matrix`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `coeff_x`
[INFO] [stdout]   --> src/diophant.rs:94:21
[INFO] [stdout]    |
[INFO] [stdout] 94 | pub fn matrix_v(mut coeff_x: i32, mut coeff_y: i32, mut free_term: i32) -> (i32, i32) {
[INFO] [stdout]    |                     ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_coeff_x`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `coeff_y`
[INFO] [stdout]   --> src/diophant.rs:94:39
[INFO] [stdout]    |
[INFO] [stdout] 94 | pub fn matrix_v(mut coeff_x: i32, mut coeff_y: i32, mut free_term: i32) -> (i32, i32) {
[INFO] [stdout]    |                                       ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_coeff_y`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `free_term`
[INFO] [stdout]   --> src/diophant.rs:94:57
[INFO] [stdout]    |
[INFO] [stdout] 94 | pub fn matrix_v(mut coeff_x: i32, mut coeff_y: i32, mut free_term: i32) -> (i32, i32) {
[INFO] [stdout]    |                                                         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_free_term`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/diophant.rs:94:17
[INFO] [stdout]    |
[INFO] [stdout] 94 | pub fn matrix_v(mut coeff_x: i32, mut coeff_y: i32, mut free_term: i32) -> (i32, i32) {
[INFO] [stdout]    |                 ----^^^^^^^
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/diophant.rs:94:35
[INFO] [stdout]    |
[INFO] [stdout] 94 | pub fn matrix_v(mut coeff_x: i32, mut coeff_y: i32, mut free_term: i32) -> (i32, i32) {
[INFO] [stdout]    |                                   ----^^^^^^^
[INFO] [stdout]    |                                   |
[INFO] [stdout]    |                                   help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/diophant.rs:94:53
[INFO] [stdout]    |
[INFO] [stdout] 94 | pub fn matrix_v(mut coeff_x: i32, mut coeff_y: i32, mut free_term: i32) -> (i32, i32) {
[INFO] [stdout]    |                                                     ----^^^^^^^^^
[INFO] [stdout]    |                                                     |
[INFO] [stdout]    |                                                     help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `gcb` is never used
[INFO] [stdout]  --> src/diophant.rs:3:4
[INFO] [stdout]   |
[INFO] [stdout] 3 | fn gcb(a: i32, b: i32) -> i32 {
[INFO] [stdout]   |    ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `no_matrix_v` is never used
[INFO] [stdout]  --> src/diophant.rs:7:8
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub fn no_matrix_v(mut coeff_x: i32, mut coeff_y: i32, mut free_term: i32) -> (i32, i32) {
[INFO] [stdout]   |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `multiply_matrix_r` is never used
[INFO] [stdout]   --> src/diophant.rs:29:4
[INFO] [stdout]    |
[INFO] [stdout] 29 | fn multiply_matrix_r(mut first_mt: Compressed<i32>, second_mt: Compressed<i32>) -> Compressed<i32> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `division_v` is never used
[INFO] [stdout]   --> src/diophant.rs:42:4
[INFO] [stdout]    |
[INFO] [stdout] 42 | fn division_v(coeff_x: i32, coeff_y: i32) -> Vec<i32> {
[INFO] [stdout]    |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `fill_m` is never used
[INFO] [stdout]   --> src/diophant.rs:63:4
[INFO] [stdout]    |
[INFO] [stdout] 63 | fn fill_m(matrix: &mut Compressed<i32>, value: i32) {
[INFO] [stdout]    |    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `TEMP_NAME` is never used
[INFO] [stdout]   --> src/diophant.rs:75:4
[INFO] [stdout]    |
[INFO] [stdout] 75 | fn TEMP_NAME(coeff_vec: Vec<i32>) -> (i32, i32) {
[INFO] [stdout]    |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `matrix_v` is never used
[INFO] [stdout]   --> src/diophant.rs:94:8
[INFO] [stdout]    |
[INFO] [stdout] 94 | pub fn matrix_v(mut coeff_x: i32, mut coeff_y: i32, mut free_term: i32) -> (i32, i32) {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `TEMP_NAME` should have a snake case name
[INFO] [stdout]   --> src/diophant.rs:75:4
[INFO] [stdout]    |
[INFO] [stdout] 75 | fn TEMP_NAME(coeff_vec: Vec<i32>) -> (i32, i32) {
[INFO] [stdout]    |    ^^^^^^^^^ help: convert the identifier to snake case: `temp_name`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 15 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.76s
[INFO] running `Command { std: "docker" "inspect" "8a450e524a5a7d8da75d11ac6114e1eac365b87cd6080398b1f9a3f7393438b2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8a450e524a5a7d8da75d11ac6114e1eac365b87cd6080398b1f9a3f7393438b2", kill_on_drop: false }`
[INFO] [stdout] 8a450e524a5a7d8da75d11ac6114e1eac365b87cd6080398b1f9a3f7393438b2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+5e4273472e1b2f223618a9b3def795f6224f241d" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 329c857932e04c1f3de72f882e08baef26df05255edc15f672043e3e8b4472ca
[INFO] running `Command { std: "docker" "start" "-a" "329c857932e04c1f3de72f882e08baef26df05255edc15f672043e3e8b4472ca", kill_on_drop: false }`
[INFO] [stderr]    Compiling code v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `result_matrix`
[INFO] [stdout]   --> src/diophant.rs:48:9
[INFO] [stdout]    |
[INFO] [stdout] 48 |     let result_matrix: Compressed<i32>;
[INFO] [stdout]    |         ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_result_matrix`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `coeff_x`
[INFO] [stdout]   --> src/diophant.rs:94:21
[INFO] [stdout]    |
[INFO] [stdout] 94 | pub fn matrix_v(mut coeff_x: i32, mut coeff_y: i32, mut free_term: i32) -> (i32, i32) {
[INFO] [stdout]    |                     ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_coeff_x`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `coeff_y`
[INFO] [stdout]   --> src/diophant.rs:94:39
[INFO] [stdout]    |
[INFO] [stdout] 94 | pub fn matrix_v(mut coeff_x: i32, mut coeff_y: i32, mut free_term: i32) -> (i32, i32) {
[INFO] [stdout]    |                                       ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_coeff_y`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `free_term`
[INFO] [stdout]   --> src/diophant.rs:94:57
[INFO] [stdout]    |
[INFO] [stdout] 94 | pub fn matrix_v(mut coeff_x: i32, mut coeff_y: i32, mut free_term: i32) -> (i32, i32) {
[INFO] [stdout]    |                                                         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_free_term`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/diophant.rs:94:17
[INFO] [stdout]    |
[INFO] [stdout] 94 | pub fn matrix_v(mut coeff_x: i32, mut coeff_y: i32, mut free_term: i32) -> (i32, i32) {
[INFO] [stdout]    |                 ----^^^^^^^
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/diophant.rs:94:35
[INFO] [stdout]    |
[INFO] [stdout] 94 | pub fn matrix_v(mut coeff_x: i32, mut coeff_y: i32, mut free_term: i32) -> (i32, i32) {
[INFO] [stdout]    |                                   ----^^^^^^^
[INFO] [stdout]    |                                   |
[INFO] [stdout]    |                                   help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/diophant.rs:94:53
[INFO] [stdout]    |
[INFO] [stdout] 94 | pub fn matrix_v(mut coeff_x: i32, mut coeff_y: i32, mut free_term: i32) -> (i32, i32) {
[INFO] [stdout]    |                                                     ----^^^^^^^^^
[INFO] [stdout]    |                                                     |
[INFO] [stdout]    |                                                     help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `multiply_matrix_r` is never used
[INFO] [stdout]   --> src/diophant.rs:29:4
[INFO] [stdout]    |
[INFO] [stdout] 29 | fn multiply_matrix_r(mut first_mt: Compressed<i32>, second_mt: Compressed<i32>) -> Compressed<i32> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `division_v` is never used
[INFO] [stdout]   --> src/diophant.rs:42:4
[INFO] [stdout]    |
[INFO] [stdout] 42 | fn division_v(coeff_x: i32, coeff_y: i32) -> Vec<i32> {
[INFO] [stdout]    |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `fill_m` is never used
[INFO] [stdout]   --> src/diophant.rs:63:4
[INFO] [stdout]    |
[INFO] [stdout] 63 | fn fill_m(matrix: &mut Compressed<i32>, value: i32) {
[INFO] [stdout]    |    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `TEMP_NAME` is never used
[INFO] [stdout]   --> src/diophant.rs:75:4
[INFO] [stdout]    |
[INFO] [stdout] 75 | fn TEMP_NAME(coeff_vec: Vec<i32>) -> (i32, i32) {
[INFO] [stdout]    |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `matrix_v` is never used
[INFO] [stdout]   --> src/diophant.rs:94:8
[INFO] [stdout]    |
[INFO] [stdout] 94 | pub fn matrix_v(mut coeff_x: i32, mut coeff_y: i32, mut free_term: i32) -> (i32, i32) {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `TEMP_NAME` should have a snake case name
[INFO] [stdout]   --> src/diophant.rs:75:4
[INFO] [stdout]    |
[INFO] [stdout] 75 | fn TEMP_NAME(coeff_vec: Vec<i32>) -> (i32, i32) {
[INFO] [stdout]    |    ^^^^^^^^^ help: convert the identifier to snake case: `temp_name`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 13 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.24s
[INFO] running `Command { std: "docker" "inspect" "329c857932e04c1f3de72f882e08baef26df05255edc15f672043e3e8b4472ca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "329c857932e04c1f3de72f882e08baef26df05255edc15f672043e3e8b4472ca", kill_on_drop: false }`
[INFO] [stdout] 329c857932e04c1f3de72f882e08baef26df05255edc15f672043e3e8b4472ca
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+5e4273472e1b2f223618a9b3def795f6224f241d" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] eaef932a9cdbf637d36bfd19d669288c3b6d0c7cfa136fc4c3661b147ae62a16
[INFO] running `Command { std: "docker" "start" "-a" "eaef932a9cdbf637d36bfd19d669288c3b6d0c7cfa136fc4c3661b147ae62a16", kill_on_drop: false }`
[INFO] [stderr] warning: unused variable: `result_matrix`
[INFO] [stderr]   --> src/diophant.rs:48:9
[INFO] [stderr]    |
[INFO] [stderr] 48 |     let result_matrix: Compressed<i32>;
[INFO] [stderr]    |         ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_result_matrix`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `coeff_x`
[INFO] [stderr]   --> src/diophant.rs:94:21
[INFO] [stderr]    |
[INFO] [stderr] 94 | pub fn matrix_v(mut coeff_x: i32, mut coeff_y: i32, mut free_term: i32) -> (i32, i32) {
[INFO] [stderr]    |                     ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_coeff_x`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `coeff_y`
[INFO] [stderr]   --> src/diophant.rs:94:39
[INFO] [stderr]    |
[INFO] [stderr] 94 | pub fn matrix_v(mut coeff_x: i32, mut coeff_y: i32, mut free_term: i32) -> (i32, i32) {
[INFO] [stderr]    |                                       ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_coeff_y`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `free_term`
[INFO] [stderr]   --> src/diophant.rs:94:57
[INFO] [stderr]    |
[INFO] [stderr] 94 | pub fn matrix_v(mut coeff_x: i32, mut coeff_y: i32, mut free_term: i32) -> (i32, i32) {
[INFO] [stderr]    |                                                         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_free_term`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/diophant.rs:94:17
[INFO] [stderr]    |
[INFO] [stderr] 94 | pub fn matrix_v(mut coeff_x: i32, mut coeff_y: i32, mut free_term: i32) -> (i32, i32) {
[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/diophant.rs:94:35
[INFO] [stderr]    |
[INFO] [stderr] 94 | pub fn matrix_v(mut coeff_x: i32, mut coeff_y: i32, mut free_term: i32) -> (i32, i32) {
[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/diophant.rs:94:53
[INFO] [stderr]    |
[INFO] [stderr] 94 | pub fn matrix_v(mut coeff_x: i32, mut coeff_y: i32, mut free_term: i32) -> (i32, i32) {
[INFO] [stderr]    |                                                     ----^^^^^^^^^
[INFO] [stderr]    |                                                     |
[INFO] [stderr]    |                                                     help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: function `multiply_matrix_r` is never used
[INFO] [stderr]   --> src/diophant.rs:29:4
[INFO] [stderr]    |
[INFO] [stderr] 29 | fn multiply_matrix_r(mut first_mt: Compressed<i32>, second_mt: Compressed<i32>) -> Compressed<i32> {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function `division_v` is never used
[INFO] [stderr]   --> src/diophant.rs:42:4
[INFO] [stderr]    |
[INFO] [stderr] 42 | fn division_v(coeff_x: i32, coeff_y: i32) -> Vec<i32> {
[INFO] [stderr]    |    ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `fill_m` is never used
[INFO] [stderr]   --> src/diophant.rs:63:4
[INFO] [stderr]    |
[INFO] [stderr] 63 | fn fill_m(matrix: &mut Compressed<i32>, value: i32) {
[INFO] [stderr]    |    ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `TEMP_NAME` is never used
[INFO] [stderr]   --> src/diophant.rs:75:4
[INFO] [stderr]    |
[INFO] [stderr] 75 | fn TEMP_NAME(coeff_vec: Vec<i32>) -> (i32, i32) {
[INFO] [stderr]    |    ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `matrix_v` is never used
[INFO] [stderr]   --> src/diophant.rs:94:8
[INFO] [stderr]    |
[INFO] [stderr] 94 | pub fn matrix_v(mut coeff_x: i32, mut coeff_y: i32, mut free_term: i32) -> (i32, i32) {
[INFO] [stderr]    |        ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `TEMP_NAME` should have a snake case name
[INFO] [stderr]   --> src/diophant.rs:75:4
[INFO] [stderr]    |
[INFO] [stderr] 75 | fn TEMP_NAME(coeff_vec: Vec<i32>) -> (i32, i32) {
[INFO] [stderr]    |    ^^^^^^^^^ help: convert the identifier to snake case: `temp_name`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `code` (bin "code" test) generated 13 warnings (run `cargo fix --bin "code" --tests` to apply 7 suggestions)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/code-aa5d6e4838316f2c)
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test diophant::test::correct_diofant ... ok
[INFO] [stdout] test diophant::test::correct_gcb ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "eaef932a9cdbf637d36bfd19d669288c3b6d0c7cfa136fc4c3661b147ae62a16", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eaef932a9cdbf637d36bfd19d669288c3b6d0c7cfa136fc4c3661b147ae62a16", kill_on_drop: false }`
[INFO] [stdout] eaef932a9cdbf637d36bfd19d669288c3b6d0c7cfa136fc4c3661b147ae62a16