[INFO] cloning repository https://github.com/pearisgreen/cplot
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/pearisgreen/cplot" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpearisgreen%2Fcplot", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpearisgreen%2Fcplot'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 8a7b24c449fc1809e4596947a9c10cf58b26f59b
[INFO] testing pearisgreen/cplot against 1.75.0 for beta-1.76-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpearisgreen%2Fcplot" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/pearisgreen/cplot on toolchain 1.75.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.75.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/pearisgreen/cplot
[INFO] finished tweaking git repo https://github.com/pearisgreen/cplot
[INFO] tweaked toml for git repo https://github.com/pearisgreen/cplot written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/pearisgreen/cplot 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" "+1.75.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "start" "-a" "0eab2123dfda96767cc5a9ab1c6ed0d677ef9b21ca8ef3011bf57feea3aff428", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0eab2123dfda96767cc5a9ab1c6ed0d677ef9b21ca8ef3011bf57feea3aff428", kill_on_drop: false }`
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[INFO] [stderr]    Compiling cplot v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::f64::consts::PI`
[INFO] [stdout]  --> src/plot.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::f64::consts::PI;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `Image_Buffer` should have an upper camel case name
[INFO] [stdout]   --> src/plot.rs:17:6
[INFO] [stdout]    |
[INFO] [stdout] 17 | type Image_Buffer = im::ImageBuffer<Rgba<u8>, Vec<u8>>;
[INFO] [stdout]    |      ^^^^^^^^^^^^ help: convert the identifier to upper camel case: `ImageBuffer`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_camel_case_types)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `val` is never read
[INFO] [stdout]   --> src/plot.rs:34:17
[INFO] [stdout]    |
[INFO] [stdout] 34 |         let mut val: f64 = 0.0;
[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: unused variable: `canvas`
[INFO] [stdout]   --> src/plot.rs:60:25
[INFO] [stdout]    |
[INFO] [stdout] 60 |     fn draw_grid(&self, canvas: &mut Image_Buffer) {
[INFO] [stdout]    |                         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_canvas`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `r_a`
[INFO] [stdout]   --> src/main.rs:58:21
[INFO] [stdout]    |
[INFO] [stdout] 58 |         if let Some(r_a) = e.render_args() {
[INFO] [stdout]    |                     ^^^ help: if this is intentional, prefix it with an underscore: `_r_a`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `button`
[INFO] [stdout]   --> src/main.rs:65:21
[INFO] [stdout]    |
[INFO] [stdout] 65 |         if let Some(button) = e.press_args() {
[INFO] [stdout]    |                     ^^^^^^ help: if this is intentional, prefix it with an underscore: `_button`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `u_a`
[INFO] [stdout]   --> src/main.rs:68:21
[INFO] [stdout]    |
[INFO] [stdout] 68 |         if let Some(u_a) = e.update_args() {
[INFO] [stdout]    |                     ^^^ help: if this is intentional, prefix it with an underscore: `_u_a`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated functions `sin` and `tan` are never used
[INFO] [stdout]   --> src/complex.rs:31:12
[INFO] [stdout]    |
[INFO] [stdout] 12 | impl Cpx {
[INFO] [stdout]    | -------- associated functions in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 31 |     pub fn sin(n: Cpx) -> Cpx {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 35 |     pub fn tan(n: Cpx) -> Option<Cpx> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2m 17s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: rustc-serialize v0.3.24
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 1`
[INFO] running `Command { std: "docker" "inspect" "98b88811e8dde357065619157e0e1e2458b676fea9aa368b75251c4159fb5b33", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "98b88811e8dde357065619157e0e1e2458b676fea9aa368b75251c4159fb5b33", kill_on_drop: false }`
[INFO] [stdout] 98b88811e8dde357065619157e0e1e2458b676fea9aa368b75251c4159fb5b33
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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" "+1.75.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c7b0268785718dbfe5d1bc7015b209a56b3e16f25592b4ab49cbb75d7544026d
[INFO] running `Command { std: "docker" "start" "-a" "c7b0268785718dbfe5d1bc7015b209a56b3e16f25592b4ab49cbb75d7544026d", kill_on_drop: false }`
[INFO] [stderr]    Compiling cplot v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::f64::consts::PI`
[INFO] [stdout]  --> src/plot.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::f64::consts::PI;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `Image_Buffer` should have an upper camel case name
[INFO] [stdout]   --> src/plot.rs:17:6
[INFO] [stdout]    |
[INFO] [stdout] 17 | type Image_Buffer = im::ImageBuffer<Rgba<u8>, Vec<u8>>;
[INFO] [stdout]    |      ^^^^^^^^^^^^ help: convert the identifier to upper camel case: `ImageBuffer`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_camel_case_types)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `val` is never read
[INFO] [stdout]   --> src/plot.rs:34:17
[INFO] [stdout]    |
[INFO] [stdout] 34 |         let mut val: f64 = 0.0;
[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: unused variable: `canvas`
[INFO] [stdout]   --> src/plot.rs:60:25
[INFO] [stdout]    |
[INFO] [stdout] 60 |     fn draw_grid(&self, canvas: &mut Image_Buffer) {
[INFO] [stdout]    |                         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_canvas`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `r_a`
[INFO] [stdout]   --> src/main.rs:58:21
[INFO] [stdout]    |
[INFO] [stdout] 58 |         if let Some(r_a) = e.render_args() {
[INFO] [stdout]    |                     ^^^ help: if this is intentional, prefix it with an underscore: `_r_a`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `button`
[INFO] [stdout]   --> src/main.rs:65:21
[INFO] [stdout]    |
[INFO] [stdout] 65 |         if let Some(button) = e.press_args() {
[INFO] [stdout]    |                     ^^^^^^ help: if this is intentional, prefix it with an underscore: `_button`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `u_a`
[INFO] [stdout]   --> src/main.rs:68:21
[INFO] [stdout]    |
[INFO] [stdout] 68 |         if let Some(u_a) = e.update_args() {
[INFO] [stdout]    |                     ^^^ help: if this is intentional, prefix it with an underscore: `_u_a`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated functions `sin` and `tan` are never used
[INFO] [stdout]   --> src/complex.rs:31:12
[INFO] [stdout]    |
[INFO] [stdout] 12 | impl Cpx {
[INFO] [stdout]    | -------- associated functions in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 31 |     pub fn sin(n: Cpx) -> Cpx {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 35 |     pub fn tan(n: Cpx) -> Option<Cpx> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.57s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: rustc-serialize v0.3.24
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 1`
[INFO] running `Command { std: "docker" "inspect" "c7b0268785718dbfe5d1bc7015b209a56b3e16f25592b4ab49cbb75d7544026d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c7b0268785718dbfe5d1bc7015b209a56b3e16f25592b4ab49cbb75d7544026d", kill_on_drop: false }`
[INFO] [stdout] c7b0268785718dbfe5d1bc7015b209a56b3e16f25592b4ab49cbb75d7544026d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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" "+1.75.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] cf0a27025d14209c0a4bb61a59b0bb24665568797664925e4663d0784e9dc353
[INFO] running `Command { std: "docker" "start" "-a" "cf0a27025d14209c0a4bb61a59b0bb24665568797664925e4663d0784e9dc353", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `std::f64::consts::PI`
[INFO] [stderr]  --> src/plot.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::f64::consts::PI;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: type `Image_Buffer` should have an upper camel case name
[INFO] [stderr]   --> src/plot.rs:17:6
[INFO] [stderr]    |
[INFO] [stderr] 17 | type Image_Buffer = im::ImageBuffer<Rgba<u8>, Vec<u8>>;
[INFO] [stderr]    |      ^^^^^^^^^^^^ help: convert the identifier to upper camel case: `ImageBuffer`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(non_camel_case_types)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `val` is never read
[INFO] [stderr]   --> src/plot.rs:34:17
[INFO] [stderr]    |
[INFO] [stderr] 34 |         let mut val: f64 = 0.0;
[INFO] [stderr]    |                 ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `canvas`
[INFO] [stderr]   --> src/plot.rs:60:25
[INFO] [stderr]    |
[INFO] [stderr] 60 |     fn draw_grid(&self, canvas: &mut Image_Buffer) {
[INFO] [stderr]    |                         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_canvas`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `r_a`
[INFO] [stderr]   --> src/main.rs:58:21
[INFO] [stderr]    |
[INFO] [stderr] 58 |         if let Some(r_a) = e.render_args() {
[INFO] [stderr]    |                     ^^^ help: if this is intentional, prefix it with an underscore: `_r_a`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `button`
[INFO] [stderr]   --> src/main.rs:65:21
[INFO] [stderr]    |
[INFO] [stderr] 65 |         if let Some(button) = e.press_args() {
[INFO] [stderr]    |                     ^^^^^^ help: if this is intentional, prefix it with an underscore: `_button`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `u_a`
[INFO] [stderr]   --> src/main.rs:68:21
[INFO] [stderr]    |
[INFO] [stderr] 68 |         if let Some(u_a) = e.update_args() {
[INFO] [stderr]    |                     ^^^ help: if this is intentional, prefix it with an underscore: `_u_a`
[INFO] [stderr] 
[INFO] [stderr] warning: associated functions `sin` and `tan` are never used
[INFO] [stderr]   --> src/complex.rs:31:12
[INFO] [stderr]    |
[INFO] [stderr] 12 | impl Cpx {
[INFO] [stderr]    | -------- associated functions in this implementation
[INFO] [stderr] ...
[INFO] [stderr] 31 |     pub fn sin(n: Cpx) -> Cpx {
[INFO] [stderr]    |            ^^^
[INFO] [stderr] ...
[INFO] [stderr] 35 |     pub fn tan(n: Cpx) -> Option<Cpx> {
[INFO] [stderr]    |            ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `cplot` (bin "cplot" test) generated 8 warnings (run `cargo fix --bin "cplot" --tests` to apply 5 suggestions)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.09s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: rustc-serialize v0.3.24
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 1`
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/cplot-2d691893a5bb5339)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "cf0a27025d14209c0a4bb61a59b0bb24665568797664925e4663d0784e9dc353", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cf0a27025d14209c0a4bb61a59b0bb24665568797664925e4663d0784e9dc353", kill_on_drop: false }`
[INFO] [stdout] cf0a27025d14209c0a4bb61a59b0bb24665568797664925e4663d0784e9dc353
