[INFO] cloning repository https://github.com/jamesThompson2805/Fourth-Year-Project
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jamesThompson2805/Fourth-Year-Project" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FjamesThompson2805%2FFourth-Year-Project", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FjamesThompson2805%2FFourth-Year-Project'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 40549b2ab3ca527872942a064e2cef37f7c26da5
[INFO] checking jamesThompson2805/Fourth-Year-Project against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FjamesThompson2805%2FFourth-Year-Project" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/jamesThompson2805/Fourth-Year-Project
[INFO] finished tweaking git repo https://github.com/jamesThompson2805/Fourth-Year-Project
[INFO] tweaked toml for git repo https://github.com/jamesThompson2805/Fourth-Year-Project written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/jamesThompson2805/Fourth-Year-Project on toolchain 4f260f0f20b3133d20cfb50353c0221943af5796
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/jamesThompson2805/Fourth-Year-Project 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" "+4f260f0f20b3133d20cfb50353c0221943af5796" "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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0849b0e7bdff79910382dba2f8c33e12907aa0b38e1b227a0ec19d4299a9d4e8
[INFO] running `Command { std: "docker" "start" "-a" "0849b0e7bdff79910382dba2f8c33e12907aa0b38e1b227a0ec19d4299a9d4e8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0849b0e7bdff79910382dba2f8c33e12907aa0b38e1b227a0ec19d4299a9d4e8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0849b0e7bdff79910382dba2f8c33e12907aa0b38e1b227a0ec19d4299a9d4e8", kill_on_drop: false }`
[INFO] [stdout] 0849b0e7bdff79910382dba2f8c33e12907aa0b38e1b227a0ec19d4299a9d4e8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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 -Dunmustuse_in_always_ok" "-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e52ef0b461ae0ce93bbbaa7f67a6ed8665aaad7bdd43440f816d2a63046cd8ef
[INFO] running `Command { std: "docker" "start" "-a" "e52ef0b461ae0ce93bbbaa7f67a6ed8665aaad7bdd43440f816d2a63046cd8ef", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.5.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.101
[INFO] [stderr]    Compiling quote v1.0.41
[INFO] [stderr]    Compiling unicode-ident v1.0.19
[INFO] [stderr]    Compiling paste v1.0.15
[INFO] [stderr]     Checking bytemuck v1.24.0
[INFO] [stderr]    Compiling typenum v1.19.0
[INFO] [stderr]     Checking rawpointer v0.2.1
[INFO] [stderr]     Checking memchr v2.7.6
[INFO] [stderr]     Checking safe_arch v0.7.4
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling matrixmultiply v0.3.10
[INFO] [stderr]     Checking nom v8.0.0
[INFO] [stderr]     Checking wide v0.7.33
[INFO] [stderr]    Compiling syn v2.0.106
[INFO] [stderr]     Checking num-complex v0.4.6
[INFO] [stderr]     Checking approx v0.5.1
[INFO] [stderr]     Checking num-integer v0.1.46
[INFO] [stderr]     Checking num-rational v0.4.2
[INFO] [stderr]     Checking simba v0.9.1
[INFO] [stderr]    Compiling nalgebra-macros v0.3.0
[INFO] [stderr]     Checking nalgebra v0.34.1
[INFO] [stderr]     Checking code v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `Error`
[INFO] [stdout]  --> src/main.rs:7:15
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::io::{Error, Write};
[INFO] [stdout]   |               ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Error`
[INFO] [stdout]  --> src/main.rs:7:15
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::io::{Error, Write};
[INFO] [stdout]   |               ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `print_input_to_output` is never used
[INFO] [stdout]   --> src/main.rs:35:4
[INFO] [stdout]    |
[INFO] [stdout] 35 | fn print_input_to_output(vi: &Vec::<u32>) -> Result<(), Box<dyn std::error::Error>> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `add_slp` is never used
[INFO] [stdout]   --> src/straight_line_program.rs:45:8
[INFO] [stdout]    |
[INFO] [stdout] 45 | pub fn add_slp(slp1: &mut SLP, slp2: &mut SLP) {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `mult_slp` is never used
[INFO] [stdout]   --> src/straight_line_program.rs:56:8
[INFO] [stdout]    |
[INFO] [stdout] 56 | pub fn mult_slp(slp1: &mut SLP, slp2: &mut SLP) {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `stringify_partialslpvar` is never used
[INFO] [stdout]   --> src/transformations.rs:36:4
[INFO] [stdout]    |
[INFO] [stdout] 36 | fn stringify_partialslpvar(var: &PartialSLPVar) -> String {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `stringify_partialslpline` is never used
[INFO] [stdout]   --> src/transformations.rs:45:4
[INFO] [stdout]    |
[INFO] [stdout] 45 | fn stringify_partialslpline(line: &PartialSLPLine) -> String {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `stringify_partialslp` is never used
[INFO] [stdout]   --> src/transformations.rs:55:4
[INFO] [stdout]    |
[INFO] [stdout] 55 | fn stringify_partialslp(p_slp: &PartialSLP) -> String {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<usize, Infallible>
[INFO] [stdout]   --> src/parsing.rs:75:63
[INFO] [stdout]    |
[INFO] [stdout] 75 | ...   if let SLPVar::L(n) = slp_tuple.0 && n >= l_no.try_into().unwrap()  { return Err( format!("Error: line {l_no} : {line} refering to ...
[INFO] [stdout]    |                                                 ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<usize, Infallible>
[INFO] [stdout]   --> src/parsing.rs:76:63
[INFO] [stdout]    |
[INFO] [stdout] 76 | ...   if let SLPVar::L(n) = slp_tuple.2 && n >= l_no.try_into().unwrap()  { return Err( format!("Error: line {l_no} : {line} refering to ...
[INFO] [stdout]    |                                                 ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `code` (bin "code") due to 2 previous errors; 7 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: function `print_input_to_output` is never used
[INFO] [stdout]   --> src/main.rs:35:4
[INFO] [stdout]    |
[INFO] [stdout] 35 | fn print_input_to_output(vi: &Vec::<u32>) -> Result<(), Box<dyn std::error::Error>> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `add_slp` is never used
[INFO] [stdout]   --> src/straight_line_program.rs:45:8
[INFO] [stdout]    |
[INFO] [stdout] 45 | pub fn add_slp(slp1: &mut SLP, slp2: &mut SLP) {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `mult_slp` is never used
[INFO] [stdout]   --> src/straight_line_program.rs:56:8
[INFO] [stdout]    |
[INFO] [stdout] 56 | pub fn mult_slp(slp1: &mut SLP, slp2: &mut SLP) {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `stringify_partialslpvar` is never used
[INFO] [stdout]   --> src/transformations.rs:36:4
[INFO] [stdout]    |
[INFO] [stdout] 36 | fn stringify_partialslpvar(var: &PartialSLPVar) -> String {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `stringify_partialslpline` is never used
[INFO] [stdout]   --> src/transformations.rs:45:4
[INFO] [stdout]    |
[INFO] [stdout] 45 | fn stringify_partialslpline(line: &PartialSLPLine) -> String {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `stringify_partialslp` is never used
[INFO] [stdout]   --> src/transformations.rs:55:4
[INFO] [stdout]    |
[INFO] [stdout] 55 | fn stringify_partialslp(p_slp: &PartialSLP) -> String {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<usize, Infallible>
[INFO] [stdout]   --> src/parsing.rs:75:63
[INFO] [stdout]    |
[INFO] [stdout] 75 | ...   if let SLPVar::L(n) = slp_tuple.0 && n >= l_no.try_into().unwrap()  { return Err( format!("Error: line {l_no} : {line} refering to ...
[INFO] [stdout]    |                                                 ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<usize, Infallible>
[INFO] [stdout]   --> src/parsing.rs:76:63
[INFO] [stdout]    |
[INFO] [stdout] 76 | ...   if let SLPVar::L(n) = slp_tuple.2 && n >= l_no.try_into().unwrap()  { return Err( format!("Error: line {l_no} : {line} refering to ...
[INFO] [stdout]    |                                                 ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `code` (bin "code" test) due to 2 previous errors; 7 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "e52ef0b461ae0ce93bbbaa7f67a6ed8665aaad7bdd43440f816d2a63046cd8ef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e52ef0b461ae0ce93bbbaa7f67a6ed8665aaad7bdd43440f816d2a63046cd8ef", kill_on_drop: false }`
[INFO] [stdout] e52ef0b461ae0ce93bbbaa7f67a6ed8665aaad7bdd43440f816d2a63046cd8ef