[INFO] cloning repository https://github.com/chrislawlor/tracers
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/chrislawlor/tracers" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fchrislawlor%2Ftracers", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fchrislawlor%2Ftracers'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a9829bf0f312584f61a870bfa2b7f053e64e1e0a
[INFO] checking chrislawlor/tracers against try#a2a6e871b05c7b8ecc9a3c8a20db1f39e995e399 for pr-145770
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fchrislawlor%2Ftracers" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/chrislawlor/tracers
[INFO] finished tweaking git repo https://github.com/chrislawlor/tracers
[INFO] tweaked toml for git repo https://github.com/chrislawlor/tracers written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/chrislawlor/tracers on toolchain a2a6e871b05c7b8ecc9a3c8a20db1f39e995e399
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a2a6e871b05c7b8ecc9a3c8a20db1f39e995e399" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/chrislawlor/tracers 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" "+a2a6e871b05c7b8ecc9a3c8a20db1f39e995e399" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+a2a6e871b05c7b8ecc9a3c8a20db1f39e995e399" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 01108f2868e9378993ef68bd3791f7f0249f594ee38dd343d9bf946ade82395c
[INFO] running `Command { std: "docker" "start" "-a" "01108f2868e9378993ef68bd3791f7f0249f594ee38dd343d9bf946ade82395c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "01108f2868e9378993ef68bd3791f7f0249f594ee38dd343d9bf946ade82395c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "01108f2868e9378993ef68bd3791f7f0249f594ee38dd343d9bf946ade82395c", kill_on_drop: false }`
[INFO] [stdout] 01108f2868e9378993ef68bd3791f7f0249f594ee38dd343d9bf946ade82395c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+a2a6e871b05c7b8ecc9a3c8a20db1f39e995e399" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 738b68329df772c5bc9201cdc8e8f5c702c50e803da7a70ad3f86f0631a81574
[INFO] running `Command { std: "docker" "start" "-a" "738b68329df772c5bc9201cdc8e8f5c702c50e803da7a70ad3f86f0631a81574", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]     Checking tracers v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `Canvas` is never constructed
[INFO] [stdout]  --> src/canvas.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub struct Canvas {
[INFO] [stdout]   |            ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/canvas.rs:11:12
[INFO] [stdout]    |
[INFO] [stdout] 10 | impl Canvas {
[INFO] [stdout]    | ----------- associated function in this implementation
[INFO] [stdout] 11 |     pub fn new(width: usize, height: usize) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `pixel_at` is never used
[INFO] [stdout]   --> src/canvas.rs:20:8
[INFO] [stdout]    |
[INFO] [stdout] 20 | pub fn pixel_at(canvas: &Canvas, x: usize, y: usize) -> Color {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `write_pixel` is never used
[INFO] [stdout]   --> src/canvas.rs:24:8
[INFO] [stdout]    |
[INFO] [stdout] 24 | pub fn write_pixel(canvas: &mut Canvas, x: usize, y: usize, color: Color) {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `canvas_to_ppm` is never used
[INFO] [stdout]   --> src/canvas.rs:28:8
[INFO] [stdout]    |
[INFO] [stdout] 28 | pub fn canvas_to_ppm(canvas: &Canvas) -> String {
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Color` is never constructed
[INFO] [stdout]  --> src/color.rs:5:12
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub struct Color {
[INFO] [stdout]   |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new` and `as_rgb` are never used
[INFO] [stdout]   --> src/color.rs:12:12
[INFO] [stdout]    |
[INFO] [stdout] 11 | impl Color {
[INFO] [stdout]    | ---------- associated items in this implementation
[INFO] [stdout] 12 |     pub fn new<T: Into<f64>>(red: T, green: T, blue: T) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 20 |     pub fn as_rgb(&self) -> (usize, usize, usize) {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Matrix` is never constructed
[INFO] [stdout]  --> src/matrix.rs:5:12
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub struct Matrix {
[INFO] [stdout]   |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated functions `new`, `from_vec`, and `identity` are never used
[INFO] [stdout]   --> src/matrix.rs:12:12
[INFO] [stdout]    |
[INFO] [stdout] 11 | impl Matrix {
[INFO] [stdout]    | ----------- associated functions in this implementation
[INFO] [stdout] 12 |     pub fn new<T: Into<f64>>(cols: usize, rows: usize) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 20 |     pub fn from_vec(rows: usize, cols: usize, cells: Vec<f64>) -> Self {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 27 |     pub fn identity() -> Self {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `value_at` is never used
[INFO] [stdout]   --> src/matrix.rs:43:8
[INFO] [stdout]    |
[INFO] [stdout] 43 | pub fn value_at(matrix: &Matrix, row: usize, col: usize) -> f64 {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `set_val` is never used
[INFO] [stdout]   --> src/matrix.rs:48:8
[INFO] [stdout]    |
[INFO] [stdout] 48 | pub fn set_val(matrix: &mut Matrix, row: usize, col: usize, value: f64) {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `index` is never used
[INFO] [stdout]   --> src/matrix.rs:53:4
[INFO] [stdout]    |
[INFO] [stdout] 53 | fn index(matrix: &Matrix, row: usize, col: usize) -> usize {
[INFO] [stdout]    |    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `EPSILON` is never used
[INFO] [stdout]  --> src/tuples.rs:3:7
[INFO] [stdout]   |
[INFO] [stdout] 3 | const EPSILON: f64 = 0.00001;
[INFO] [stdout]   |       ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `FourTuple` is never constructed
[INFO] [stdout]  --> src/tuples.rs:6:12
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub struct FourTuple {
[INFO] [stdout]   |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated functions `new`, `point`, `vector`, `is_point`, and `is_vector` are never used
[INFO] [stdout]   --> src/tuples.rs:14:12
[INFO] [stdout]    |
[INFO] [stdout] 13 | impl FourTuple {
[INFO] [stdout]    | -------------- associated functions in this implementation
[INFO] [stdout] 14 |     pub fn new<T: Into<f64>>(x: T, y: T, z: T, w: T) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 23 |     pub fn point<T: Into<f64>>(x: T, y: T, z: T) -> Self {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 32 |     pub fn vector<T: Into<f64>>(x: T, y: T, z: T) -> Self {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 41 |     fn is_point(obj: &FourTuple) -> bool {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 45 |     fn is_vector(obj: &FourTuple) -> bool {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `magnitude` is never used
[INFO] [stdout]    --> src/tuples.rs:115:8
[INFO] [stdout]     |
[INFO] [stdout] 115 | pub fn magnitude(tuple: &FourTuple) -> f64 {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `normalize` is never used
[INFO] [stdout]    --> src/tuples.rs:120:8
[INFO] [stdout]     |
[INFO] [stdout] 120 | pub fn normalize(vector: &FourTuple) -> FourTuple {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `dot` is never used
[INFO] [stdout]    --> src/tuples.rs:125:8
[INFO] [stdout]     |
[INFO] [stdout] 125 | pub fn dot(a: &FourTuple, b: &FourTuple) -> f64 {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `cross` is never used
[INFO] [stdout]    --> src/tuples.rs:129:8
[INFO] [stdout]     |
[INFO] [stdout] 129 | pub fn cross(a: &FourTuple, b: &FourTuple) -> FourTuple {
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]     Checking approx v0.5.1
[INFO] [stdout] warning: associated functions `new` and `identity` are never used
[INFO] [stdout]   --> src/matrix.rs:12:12
[INFO] [stdout]    |
[INFO] [stdout] 11 | impl Matrix {
[INFO] [stdout]    | ----------- associated functions in this implementation
[INFO] [stdout] 12 |     pub fn new<T: Into<f64>>(cols: usize, rows: usize) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 27 |     pub fn identity() -> Self {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `set_val` is never used
[INFO] [stdout]   --> src/matrix.rs:48:8
[INFO] [stdout]    |
[INFO] [stdout] 48 | pub fn set_val(matrix: &mut Matrix, row: usize, col: usize, value: f64) {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `EPSILON` is never used
[INFO] [stdout]  --> src/tuples.rs:3:7
[INFO] [stdout]   |
[INFO] [stdout] 3 | const EPSILON: f64 = 0.00001;
[INFO] [stdout]   |       ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing
[INFO] [stdout]    --> src/tuples.rs:233:42
[INFO] [stdout]     |
[INFO] [stdout] 233 |             let (vector, expected) = case.clone();
[INFO] [stdout]     |                                          ^^^^^^^^ help: remove this redundant call
[INFO] [stdout]     |
[INFO] [stdout]     = note: the type `(tuples::FourTuple, tuples::FourTuple)` does not implement `Clone`, so calling `clone` on `&(tuples::FourTuple, tuples::FourTuple)` copies the reference, which does not do anything and can be removed
[INFO] [stdout]     = note: `#[warn(noop_method_call)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.47s
[INFO] running `Command { std: "docker" "inspect" "738b68329df772c5bc9201cdc8e8f5c702c50e803da7a70ad3f86f0631a81574", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "738b68329df772c5bc9201cdc8e8f5c702c50e803da7a70ad3f86f0631a81574", kill_on_drop: false }`
[INFO] [stdout] 738b68329df772c5bc9201cdc8e8f5c702c50e803da7a70ad3f86f0631a81574
