[INFO] cloning repository https://github.com/hclarke/tracer
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/hclarke/tracer" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhclarke%2Ftracer", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhclarke%2Ftracer'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] dfc09da0823eab64d3d77fc8fbedbc059279cf4b
[INFO] checking hclarke/tracer against try#f47dd4da3ae8c32c9e65d307bfe640b143e674df for pr-77526
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhclarke%2Ftracer" "/workspace/builds/worker-3/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/hclarke/tracer on toolchain f47dd4da3ae8c32c9e65d307bfe640b143e674df
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/hclarke/tracer
[INFO] finished tweaking git repo https://github.com/hclarke/tracer
[INFO] tweaked toml for git repo https://github.com/hclarke/tracer written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/hclarke/tracer already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded png_encode_mini v0.1.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0a9710bc72d45fec1005cef5521a1396b318f5220fc58c2f7fb1f861b7974d68
[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" "0a9710bc72d45fec1005cef5521a1396b318f5220fc58c2f7fb1f861b7974d68", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0a9710bc72d45fec1005cef5521a1396b318f5220fc58c2f7fb1f861b7974d68", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0a9710bc72d45fec1005cef5521a1396b318f5220fc58c2f7fb1f861b7974d68", kill_on_drop: false }`
[INFO] [stdout] 0a9710bc72d45fec1005cef5521a1396b318f5220fc58c2f7fb1f861b7974d68
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 734f25046d39c2d2296559821bec8d30cb3e2a8954d3f379e1db9b691ea26bf6
[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" "734f25046d39c2d2296559821bec8d30cb3e2a8954d3f379e1db9b691ea26bf6", kill_on_drop: false }`
[INFO] [stderr]     Checking png_encode_mini v0.1.2
[INFO] [stderr]     Checking tracer v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `rng`
[INFO] [stdout]    --> src/main.rs:120:14
[INFO] [stdout]     |
[INFO] [stdout] 120 | fn get_color(rng : &Rng, o:V3, d:V3) -> V3 {
[INFO] [stdout]     |              ^^^ help: if this is intentional, prefix it with an underscore: `_rng`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `sval`
[INFO] [stdout]   --> src/rnd.rs:43:9
[INFO] [stdout]    |
[INFO] [stdout] 43 |     pub fn sval(&self) -> f32 {
[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: `ubox`
[INFO] [stdout]   --> src/rnd.rs:57:9
[INFO] [stdout]    |
[INFO] [stdout] 57 |     pub fn ubox<T:V>(&self) ->T {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `sbox`
[INFO] [stdout]   --> src/rnd.rs:61:9
[INFO] [stdout]    |
[INFO] [stdout] 61 |     pub fn sbox<T:V>(&self) ->T {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `gaussian2`
[INFO] [stdout]   --> src/rnd.rs:65:9
[INFO] [stdout]    |
[INFO] [stdout] 65 |     pub fn gaussian2(&self) -> V2 {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `gaussian`
[INFO] [stdout]   --> src/rnd.rs:72:9
[INFO] [stdout]    |
[INFO] [stdout] 72 |     pub fn gaussian<T:V>(&self) -> T{
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `cross`
[INFO] [stdout]    --> src/vec.rs:202:9
[INFO] [stdout]     |
[INFO] [stdout] 202 |     pub fn cross(self,rhs:V3) -> V3 {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `get_color`
[INFO] [stdout]    --> src/main.rs:120:4
[INFO] [stdout]     |
[INFO] [stdout] 120 | fn get_color(rng : &Rng, o:V3, d:V3) -> V3 {
[INFO] [stdout]     |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `rng`
[INFO] [stdout]    --> src/main.rs:120:14
[INFO] [stdout]     |
[INFO] [stdout] 120 | fn get_color(rng : &Rng, o:V3, d:V3) -> V3 {
[INFO] [stdout]     |              ^^^ help: if this is intentional, prefix it with an underscore: `_rng`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `ubox`
[INFO] [stdout]   --> src/rnd.rs:57:9
[INFO] [stdout]    |
[INFO] [stdout] 57 |     pub fn ubox<T:V>(&self) ->T {
[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: `sbox`
[INFO] [stdout]   --> src/rnd.rs:61:9
[INFO] [stdout]    |
[INFO] [stdout] 61 |     pub fn sbox<T:V>(&self) ->T {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `gaussian2`
[INFO] [stdout]   --> src/rnd.rs:65:9
[INFO] [stdout]    |
[INFO] [stdout] 65 |     pub fn gaussian2(&self) -> V2 {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `gaussian`
[INFO] [stdout]   --> src/rnd.rs:72:9
[INFO] [stdout]    |
[INFO] [stdout] 72 |     pub fn gaussian<T:V>(&self) -> T{
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `cross`
[INFO] [stdout]    --> src/vec.rs:202:9
[INFO] [stdout]     |
[INFO] [stdout] 202 |     pub fn cross(self,rhs:V3) -> V3 {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `get_color`
[INFO] [stdout]    --> src/main.rs:120:4
[INFO] [stdout]     |
[INFO] [stdout] 120 | fn get_color(rng : &Rng, o:V3, d:V3) -> V3 {
[INFO] [stdout]     |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.94s
[INFO] running `Command { std: "docker" "inspect" "734f25046d39c2d2296559821bec8d30cb3e2a8954d3f379e1db9b691ea26bf6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "734f25046d39c2d2296559821bec8d30cb3e2a8954d3f379e1db9b691ea26bf6", kill_on_drop: false }`
[INFO] [stdout] 734f25046d39c2d2296559821bec8d30cb3e2a8954d3f379e1db9b691ea26bf6