[INFO] cloning repository https://github.com/gpluscb/double-pendulum
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/gpluscb/double-pendulum" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgpluscb%2Fdouble-pendulum", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgpluscb%2Fdouble-pendulum'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 24cd4d2602a89698f5e5840adb5bc7700ab69f85
[INFO] checking gpluscb/double-pendulum against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgpluscb%2Fdouble-pendulum" "/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/gpluscb/double-pendulum on toolchain ceab6128fa48a616bfd3e3adf4bc80133b8ee223
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/gpluscb/double-pendulum
[INFO] finished tweaking git repo https://github.com/gpluscb/double-pendulum
[INFO] tweaked toml for git repo https://github.com/gpluscb/double-pendulum written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/gpluscb/double-pendulum 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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded serde_json v1.0.69
[INFO] [stderr]   Downloaded sdl2 v0.35.1
[INFO] [stderr]   Downloaded nix v0.23.0
[INFO] [stderr]   Downloaded sdl2-sys v0.35.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f85e6b5d40c89b60037224f2e7f46c22302c50e23405c329c4576fb22f68bde9
[INFO] running `Command { std: "docker" "start" "-a" "f85e6b5d40c89b60037224f2e7f46c22302c50e23405c329c4576fb22f68bde9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f85e6b5d40c89b60037224f2e7f46c22302c50e23405c329c4576fb22f68bde9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f85e6b5d40c89b60037224f2e7f46c22302c50e23405c329c4576fb22f68bde9", kill_on_drop: false }`
[INFO] [stdout] f85e6b5d40c89b60037224f2e7f46c22302c50e23405c329c4576fb22f68bde9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6d33eea6399272808e18e4aa392fa3cc4d8ece2830a03230259e81156f61b25f
[INFO] running `Command { std: "docker" "start" "-a" "6d33eea6399272808e18e4aa392fa3cc4d8ece2830a03230259e81156f61b25f", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.107
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[INFO] [stderr]    Compiling num-bigint v0.3.3
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[INFO] [stderr]     Checking adler32 v1.2.0
[INFO] [stderr]    Compiling syn v1.0.81
[INFO] [stderr]    Compiling cfg-if v1.0.0
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[INFO] [stderr]    Compiling sdl2-sys v0.35.1
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[INFO] [stderr]     Checking image v0.23.14
[INFO] [stderr]     Checking imageproc v0.22.0
[INFO] [stderr]     Checking double-pendulum v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `color`
[INFO] [stdout]   --> src/render/image.rs:96:17
[INFO] [stdout]    |
[INFO] [stdout] 96 |             let color = Rgba([r, g, b, a]);
[INFO] [stdout]    |                 ^^^^^ help: if this is intentional, prefix it with an underscore: `_color`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `new_a`
[INFO] [stdout]   --> src/render/image.rs:98:17
[INFO] [stdout]    |
[INFO] [stdout] 98 |             let new_a = info_1.a;
[INFO] [stdout]    |                 ^^^^^ help: if this is intentional, prefix it with an underscore: `_new_a`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `new_b`
[INFO] [stdout]   --> src/render/image.rs:99:17
[INFO] [stdout]    |
[INFO] [stdout] 99 |             let new_b = info_1.b;
[INFO] [stdout]    |                 ^^^^^ help: if this is intentional, prefix it with an underscore: `_new_b`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `color`
[INFO] [stdout]   --> src/render/image.rs:96:17
[INFO] [stdout]    |
[INFO] [stdout] 96 |             let color = Rgba([r, g, b, a]);
[INFO] [stdout]    |                 ^^^^^ help: if this is intentional, prefix it with an underscore: `_color`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `new_a`
[INFO] [stdout]   --> src/render/image.rs:98:17
[INFO] [stdout]    |
[INFO] [stdout] 98 |             let new_a = info_1.a;
[INFO] [stdout]    |                 ^^^^^ help: if this is intentional, prefix it with an underscore: `_new_a`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `new_b`
[INFO] [stdout]   --> src/render/image.rs:99:17
[INFO] [stdout]    |
[INFO] [stdout] 99 |             let new_b = info_1.b;
[INFO] [stdout]    |                 ^^^^^ help: if this is intentional, prefix it with an underscore: `_new_b`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `info_2`
[INFO] [stdout]   --> src/render/sdl2.rs:68:22
[INFO] [stdout]    |
[INFO] [stdout] 68 |         for (info_1, info_2) in render_infos.iter().tuple_windows() {
[INFO] [stdout]    |                      ^^^^^^ help: if this is intentional, prefix it with an underscore: `_info_2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `info_2`
[INFO] [stdout]   --> src/render/sdl2.rs:68:22
[INFO] [stdout]    |
[INFO] [stdout] 68 |         for (info_1, info_2) in render_infos.iter().tuple_windows() {
[INFO] [stdout]    |                      ^^^^^^ help: if this is intentional, prefix it with an underscore: `_info_2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `mass` is never used
[INFO] [stdout]   --> src/core/mod.rs:24:12
[INFO] [stdout]    |
[INFO] [stdout] 15 | impl Pendulum {
[INFO] [stdout]    | ------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 24 |     pub fn mass(&self) -> f64 {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `random_configuration` is never used
[INFO] [stdout]   --> src/core/mod.rs:73:12
[INFO] [stdout]    |
[INFO] [stdout] 60 | impl DoublePendulumConfiguration {
[INFO] [stdout]    | -------------------------------- associated function in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 73 |     pub fn random_configuration() -> Self {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `step_all` is never used
[INFO] [stdout]    --> src/core/mod.rs:235:12
[INFO] [stdout]     |
[INFO] [stdout] 210 | impl DoublePendulumCollection {
[INFO] [stdout]     | ----------------------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 235 |     pub fn step_all(&mut self, step_time: Duration) {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `mass` is never used
[INFO] [stdout]   --> src/core/mod.rs:24:12
[INFO] [stdout]    |
[INFO] [stdout] 15 | impl Pendulum {
[INFO] [stdout]    | ------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 24 |     pub fn mass(&self) -> f64 {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `random_configuration` is never used
[INFO] [stdout]   --> src/core/mod.rs:73:12
[INFO] [stdout]    |
[INFO] [stdout] 60 | impl DoublePendulumConfiguration {
[INFO] [stdout]    | -------------------------------- associated function in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 73 |     pub fn random_configuration() -> Self {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `step_all` is never used
[INFO] [stdout]    --> src/core/mod.rs:235:12
[INFO] [stdout]     |
[INFO] [stdout] 210 | impl DoublePendulumCollection {
[INFO] [stdout]     | ----------------------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 235 |     pub fn step_all(&mut self, step_time: Duration) {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.76s
[INFO] running `Command { std: "docker" "inspect" "6d33eea6399272808e18e4aa392fa3cc4d8ece2830a03230259e81156f61b25f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6d33eea6399272808e18e4aa392fa3cc4d8ece2830a03230259e81156f61b25f", kill_on_drop: false }`
[INFO] [stdout] 6d33eea6399272808e18e4aa392fa3cc4d8ece2830a03230259e81156f61b25f