[INFO] cloning repository https://github.com/SE-691-Graphing-Calculator/esoteric_nonsense
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/SE-691-Graphing-Calculator/esoteric_nonsense" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSE-691-Graphing-Calculator%2Fesoteric_nonsense", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSE-691-Graphing-Calculator%2Fesoteric_nonsense'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 04ea589b862b65255e830bb3b1a9a7177ec25e7c
[INFO] checking SE-691-Graphing-Calculator/esoteric_nonsense against master#4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5 for pr-81174
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSE-691-Graphing-Calculator%2Fesoteric_nonsense" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/SE-691-Graphing-Calculator/esoteric_nonsense on toolchain 4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/SE-691-Graphing-Calculator/esoteric_nonsense
[INFO] finished tweaking git repo https://github.com/SE-691-Graphing-Calculator/esoteric_nonsense
[INFO] tweaked toml for git repo https://github.com/SE-691-Graphing-Calculator/esoteric_nonsense written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: file found to be present in multiple build targets: /workspace/builds/worker-2/source/src/main.rs
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "rustops/crates-build-env@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 1428a765b90fb249d893414a105e4f150c119eaac1f6f5fc2cfd4938e35fec4c
[INFO] running `Command { std: "docker" "start" "-a" "1428a765b90fb249d893414a105e4f150c119eaac1f6f5fc2cfd4938e35fec4c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1428a765b90fb249d893414a105e4f150c119eaac1f6f5fc2cfd4938e35fec4c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1428a765b90fb249d893414a105e4f150c119eaac1f6f5fc2cfd4938e35fec4c", kill_on_drop: false }`
[INFO] [stdout] 1428a765b90fb249d893414a105e4f150c119eaac1f6f5fc2cfd4938e35fec4c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6fbb6c13d9604ec26ce7d473533b1c979afc56f6c5ab883a994cf815059a8025
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "6fbb6c13d9604ec26ce7d473533b1c979afc56f6c5ab883a994cf815059a8025", kill_on_drop: false }`
[INFO] [stderr] warning: file found to be present in multiple build targets: /opt/rustwide/workdir/src/main.rs
[INFO] [stderr]     Checking eq_solve v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `y_lower`
[INFO] [stdout]    --> src/main.rs:124:85
[INFO] [stdout]     |
[INFO] [stdout] 124 | pub fn func_of_x (expression: String, x_lower: f64, x_upper: f64, x_precision: f64, y_lower: f64, y_upper: f64) -> Vec<f64> {
[INFO] [stdout]     |                                                                                     ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_y_lower`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `y_upper`
[INFO] [stdout]    --> src/main.rs:124:99
[INFO] [stdout]     |
[INFO] [stdout] 124 | pub fn func_of_x (expression: String, x_lower: f64, x_upper: f64, x_precision: f64, y_lower: f64, y_upper: f64) -> Vec<f64> {
[INFO] [stdout]     |                                                                                                   ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_y_upper`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `y_lower`
[INFO] [stdout]    --> src/main.rs:124:85
[INFO] [stdout]     |
[INFO] [stdout] 124 | pub fn func_of_x (expression: String, x_lower: f64, x_upper: f64, x_precision: f64, y_lower: f64, y_upper: f64) -> Vec<f64> {
[INFO] [stdout]     |                                                                                     ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_y_lower`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `y_upper`
[INFO] [stdout]    --> src/main.rs:124:99
[INFO] [stdout]     |
[INFO] [stdout] 124 | pub fn func_of_x (expression: String, x_lower: f64, x_upper: f64, x_precision: f64, y_lower: f64, y_upper: f64) -> Vec<f64> {
[INFO] [stdout]     |                                                                                                   ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_y_upper`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `y_lower`
[INFO] [stdout]    --> src/main.rs:124:85
[INFO] [stdout]     |
[INFO] [stdout] 124 | pub fn func_of_x (expression: String, x_lower: f64, x_upper: f64, x_precision: f64, y_lower: f64, y_upper: f64) -> Vec<f64> {
[INFO] [stdout]     |                                                                                     ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_y_lower`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `y_upper`
[INFO] [stdout]    --> src/main.rs:124:99
[INFO] [stdout]     |
[INFO] [stdout] 124 | pub fn func_of_x (expression: String, x_lower: f64, x_upper: f64, x_precision: f64, y_lower: f64, y_upper: f64) -> Vec<f64> {
[INFO] [stdout]     |                                                                                                   ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_y_upper`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]   --> src/main.rs:58:30
[INFO] [stdout]    |
[INFO] [stdout] 57 | pub unsafe extern "C" fn calculate(input: *const c_char) -> f64 {
[INFO] [stdout]    | --------------------------------------------------------------- because it's nested under this `unsafe` fn
[INFO] [stdout] 58 |     let input_c_str: &CStr = unsafe { CStr::from_ptr(input)};
[INFO] [stdout]    |                              ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_unsafe)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]   --> src/main.rs:65:30
[INFO] [stdout]    |
[INFO] [stdout] 64 | pub unsafe extern "C" fn calculate_string(input: *const c_char) -> *mut c_char {
[INFO] [stdout]    | ------------------------------------------------------------------------------ because it's nested under this `unsafe` fn
[INFO] [stdout] 65 |     let input_c_str: &CStr = unsafe { CStr::from_ptr(input)};
[INFO] [stdout]    |                              ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `WholeNumber`
[INFO] [stdout]  --> src/s_y.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 |     WholeNumber(i64),
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `to_string_ast`
[INFO] [stdout]    --> src/s_y.rs:622:12
[INFO] [stdout]     |
[INFO] [stdout] 622 |     pub fn to_string_ast(&self) -> String {
[INFO] [stdout]     |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `main`
[INFO] [stdout]   --> src/main.rs:10:4
[INFO] [stdout]    |
[INFO] [stdout] 10 | fn main() {
[INFO] [stdout]    |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]   --> src/main.rs:58:30
[INFO] [stdout]    |
[INFO] [stdout] 57 | pub unsafe extern "C" fn calculate(input: *const c_char) -> f64 {
[INFO] [stdout]    | --------------------------------------------------------------- because it's nested under this `unsafe` fn
[INFO] [stdout] 58 |     let input_c_str: &CStr = unsafe { CStr::from_ptr(input)};
[INFO] [stdout]    |                              ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_unsafe)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]   --> src/main.rs:65:30
[INFO] [stdout]    |
[INFO] [stdout] 64 | pub unsafe extern "C" fn calculate_string(input: *const c_char) -> *mut c_char {
[INFO] [stdout]    | ------------------------------------------------------------------------------ because it's nested under this `unsafe` fn
[INFO] [stdout] 65 |     let input_c_str: &CStr = unsafe { CStr::from_ptr(input)};
[INFO] [stdout]    |                              ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `WholeNumber`
[INFO] [stdout]  --> src/s_y.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 |     WholeNumber(i64),
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `to_string_ast`
[INFO] [stdout]    --> src/s_y.rs:622:12
[INFO] [stdout]     |
[INFO] [stdout] 622 |     pub fn to_string_ast(&self) -> String {
[INFO] [stdout]     |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `y_lower`
[INFO] [stdout]    --> src/main.rs:124:85
[INFO] [stdout]     |
[INFO] [stdout] 124 | pub fn func_of_x (expression: String, x_lower: f64, x_upper: f64, x_precision: f64, y_lower: f64, y_upper: f64) -> Vec<f64> {
[INFO] [stdout]     |                                                                                     ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_y_lower`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `y_upper`
[INFO] [stdout]    --> src/main.rs:124:99
[INFO] [stdout]     |
[INFO] [stdout] 124 | pub fn func_of_x (expression: String, x_lower: f64, x_upper: f64, x_precision: f64, y_lower: f64, y_upper: f64) -> Vec<f64> {
[INFO] [stdout]     |                                                                                                   ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_y_upper`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]   --> src/main.rs:58:30
[INFO] [stdout]    |
[INFO] [stdout] 57 | pub unsafe extern "C" fn calculate(input: *const c_char) -> f64 {
[INFO] [stdout]    | --------------------------------------------------------------- because it's nested under this `unsafe` fn
[INFO] [stdout] 58 |     let input_c_str: &CStr = unsafe { CStr::from_ptr(input)};
[INFO] [stdout]    |                              ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_unsafe)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]   --> src/main.rs:65:30
[INFO] [stdout]    |
[INFO] [stdout] 64 | pub unsafe extern "C" fn calculate_string(input: *const c_char) -> *mut c_char {
[INFO] [stdout]    | ------------------------------------------------------------------------------ because it's nested under this `unsafe` fn
[INFO] [stdout] 65 |     let input_c_str: &CStr = unsafe { CStr::from_ptr(input)};
[INFO] [stdout]    |                              ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `WholeNumber`
[INFO] [stdout]  --> src/s_y.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 |     WholeNumber(i64),
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]   --> src/main.rs:58:30
[INFO] [stdout]    |
[INFO] [stdout] 57 | pub unsafe extern "C" fn calculate(input: *const c_char) -> f64 {
[INFO] [stdout]    | --------------------------------------------------------------- because it's nested under this `unsafe` fn
[INFO] [stdout] 58 |     let input_c_str: &CStr = unsafe { CStr::from_ptr(input)};
[INFO] [stdout]    |                              ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_unsafe)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]   --> src/main.rs:65:30
[INFO] [stdout]    |
[INFO] [stdout] 64 | pub unsafe extern "C" fn calculate_string(input: *const c_char) -> *mut c_char {
[INFO] [stdout]    | ------------------------------------------------------------------------------ because it's nested under this `unsafe` fn
[INFO] [stdout] 65 |     let input_c_str: &CStr = unsafe { CStr::from_ptr(input)};
[INFO] [stdout]    |                              ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `WholeNumber`
[INFO] [stdout]  --> src/s_y.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 |     WholeNumber(i64),
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.90s
[INFO] running `Command { std: "docker" "inspect" "6fbb6c13d9604ec26ce7d473533b1c979afc56f6c5ab883a994cf815059a8025", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6fbb6c13d9604ec26ce7d473533b1c979afc56f6c5ab883a994cf815059a8025", kill_on_drop: false }`
[INFO] [stdout] 6fbb6c13d9604ec26ce7d473533b1c979afc56f6c5ab883a994cf815059a8025