[INFO] updating cached repository https://github.com/huwb/rust-rt
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/mnt/big/crater/work/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 34c4b6019d92713f1f3adcb6336a82acdbff1ee8
[INFO] checking huwb/rust-rt against try#e689e5eaefe96e6dc3ed5bb629c521b7d207aff7 for pr-64398
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhuwb%2Frust-rt" "work/builds/worker-4/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/huwb/rust-rt on toolchain e689e5eaefe96e6dc3ed5bb629c521b7d207aff7-alt
[INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+e689e5eaefe96e6dc3ed5bb629c521b7d207aff7-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/huwb/rust-rt
[INFO] finished tweaking git repo https://github.com/huwb/rust-rt
[INFO] tweaked toml for git repo https://github.com/huwb/rust-rt written to work/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/huwb/rust-rt already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+e689e5eaefe96e6dc3ed5bb629c521b7d207aff7-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/mnt/big/crater/work/builds/worker-4/source:/opt/rustwide/workdir:ro,Z" "-v" "/mnt/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+e689e5eaefe96e6dc3ed5bb629c521b7d207aff7-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 51b9138db594d0fe44fac60324a10ecd62a7dd4d8c35ce7c4e060a3e7b048600
[INFO] running `"docker" "start" "-a" "51b9138db594d0fe44fac60324a10ecd62a7dd4d8c35ce7c4e060a3e7b048600"`
[INFO] [stderr]     Checking simple-stopwatch v0.1.4
[INFO] [stderr]     Checking rust-rt v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/threadpool.rs:18:20
[INFO] [stderr]    |
[INFO] [stderr] 18 | pub type Job = Box<FnBox + Send>;
[INFO] [stderr]    |                    ^^^^^^^^^^^^ help: use `dyn`: `dyn FnBox + Send`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/vector.rs:51:39
[INFO] [stderr]    |
[INFO] [stderr] 51 |     pub fn random_on_sphere(rng: &mut Rng) -> Vector {
[INFO] [stderr]    |                                       ^^^ help: use `dyn`: `dyn Rng`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/main.rs:99:58
[INFO] [stderr]    |
[INFO] [stderr] 99 |     fn scatter(&self, r: &Ray, hr: &HitRecord, rng: &mut Rng) -> Option<(Vector, Ray)> {
[INFO] [stderr]    |                                                          ^^^ help: use `dyn`: `dyn Rng`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:176:49
[INFO] [stderr]     |
[INFO] [stderr] 176 | fn render(r: Ray, bounces_rem: usize, rng: &mut Rng) -> Vector {
[INFO] [stderr]     |                                                 ^^^ help: use `dyn`: `dyn Rng`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:203:36
[INFO] [stderr]     |
[INFO] [stderr] 203 | fn color(u: f32, v: f32, rng: &mut Rng) -> Vector {
[INFO] [stderr]     |                                    ^^^ help: use `dyn`: `dyn Rng`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/main.rs:253:21
[INFO] [stderr]     |
[INFO] [stderr] 253 |                 let mut xf = x as f32;
[INFO] [stderr]     |                     ----^^
[INFO] [stderr]     |                     |
[INFO] [stderr]     |                     help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/main.rs:260:25
[INFO] [stderr]     |
[INFO] [stderr] 260 |                     let mut i = color(u, v, &mut rng);
[INFO] [stderr]     |                         ----^
[INFO] [stderr]     |                         |
[INFO] [stderr]     |                         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/main.rs:243:13
[INFO] [stderr]     |
[INFO] [stderr] 243 |         let mut yf = y as f32;
[INFO] [stderr]     |             ----^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/main.rs:245:13
[INFO] [stderr]     |
[INFO] [stderr] 245 |         let mut row = Arc::clone(&&image[y]);
[INFO] [stderr]     |             ----^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/threadpool.rs:18:20
[INFO] [stderr]    |
[INFO] [stderr] 18 | pub type Job = Box<FnBox + Send>;
[INFO] [stderr]    |                    ^^^^^^^^^^^^ help: use `dyn`: `dyn FnBox + Send`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/vector.rs:51:39
[INFO] [stderr]    |
[INFO] [stderr] 51 |     pub fn random_on_sphere(rng: &mut Rng) -> Vector {
[INFO] [stderr]    |                                       ^^^ help: use `dyn`: `dyn Rng`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/main.rs:99:58
[INFO] [stderr]    |
[INFO] [stderr] 99 |     fn scatter(&self, r: &Ray, hr: &HitRecord, rng: &mut Rng) -> Option<(Vector, Ray)> {
[INFO] [stderr]    |                                                          ^^^ help: use `dyn`: `dyn Rng`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:176:49
[INFO] [stderr]     |
[INFO] [stderr] 176 | fn render(r: Ray, bounces_rem: usize, rng: &mut Rng) -> Vector {
[INFO] [stderr]     |                                                 ^^^ help: use `dyn`: `dyn Rng`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:203:36
[INFO] [stderr]     |
[INFO] [stderr] 203 | fn color(u: f32, v: f32, rng: &mut Rng) -> Vector {
[INFO] [stderr]     |                                    ^^^ help: use `dyn`: `dyn Rng`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/main.rs:253:21
[INFO] [stderr]     |
[INFO] [stderr] 253 |                 let mut xf = x as f32;
[INFO] [stderr]     |                     ----^^
[INFO] [stderr]     |                     |
[INFO] [stderr]     |                     help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/main.rs:260:25
[INFO] [stderr]     |
[INFO] [stderr] 260 |                     let mut i = color(u, v, &mut rng);
[INFO] [stderr]     |                         ----^
[INFO] [stderr]     |                         |
[INFO] [stderr]     |                         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/main.rs:243:13
[INFO] [stderr]     |
[INFO] [stderr] 243 |         let mut yf = y as f32;
[INFO] [stderr]     |             ----^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/main.rs:245:13
[INFO] [stderr]     |
[INFO] [stderr] 245 |         let mut row = Arc::clone(&&image[y]);
[INFO] [stderr]     |             ----^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.65s
[INFO] running `"docker" "inspect" "51b9138db594d0fe44fac60324a10ecd62a7dd4d8c35ce7c4e060a3e7b048600"`
[INFO] running `"docker" "rm" "-f" "51b9138db594d0fe44fac60324a10ecd62a7dd4d8c35ce7c4e060a3e7b048600"`
[INFO] [stdout] 51b9138db594d0fe44fac60324a10ecd62a7dd4d8c35ce7c4e060a3e7b048600