[INFO] updating cached repository https://github.com/tirr-c/tiny-raytracer
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/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] 3a307bc002b273278474e813cd11eb446df44673
[INFO] testing tirr-c/tiny-raytracer against 1.38.0 for beta-1.39-1
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftirr-c%2Ftiny-raytracer" "work/builds/worker-5/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/tirr-c/tiny-raytracer on toolchain 1.38.0
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/tirr-c/tiny-raytracer
[INFO] finished tweaking git repo https://github.com/tirr-c/tiny-raytracer
[INFO] tweaked toml for git repo https://github.com/tirr-c/tiny-raytracer written to work/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/tirr-c/tiny-raytracer already has a lockfile, it will not be regenerated
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-5/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/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=warn" "-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" "+1.38.0" "build" "--frozen"`
[INFO] [stdout] 19d02897fcc13db21ba743221e0d9ea8daaab98bf1295216f76940da372526eb
[INFO] running `"docker" "start" "-a" "19d02897fcc13db21ba743221e0d9ea8daaab98bf1295216f76940da372526eb"`
[INFO] [stderr]    Compiling backtrace-sys v0.1.28
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling syn v0.15.26
[INFO] [stderr]    Compiling num-complex v0.2.1
[INFO] [stderr]    Compiling approx v0.3.1
[INFO] [stderr]    Compiling num-iter v0.1.37
[INFO] [stderr]    Compiling rayon-core v1.4.1
[INFO] [stderr]    Compiling png v0.14.0
[INFO] [stderr]    Compiling alga v0.8.1
[INFO] [stderr]    Compiling rayon v1.0.3
[INFO] [stderr]    Compiling backtrace v0.3.13
[INFO] [stderr]    Compiling nalgebra v0.17.0
[INFO] [stderr]    Compiling synstructure v0.10.1
[INFO] [stderr]    Compiling failure_derive v0.1.5
[INFO] [stderr]    Compiling failure v0.1.5
[INFO] [stderr] warning[E0502]: cannot borrow `*self` as immutable because it is also borrowed as mutable
[INFO] [stderr]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/nalgebra-0.17.0/src/base/cg.rs:297:44
[INFO] [stderr]     |
[INFO] [stderr] 297 |                 self[(j, i)] += shift[j] * self[(D::dim() - 1, i)];
[INFO] [stderr]     |                 ---------------------------^^^^-------------------
[INFO] [stderr]     |                 |                          |
[INFO] [stderr]     |                 |                          immutable borrow occurs here
[INFO] [stderr]     |                 mutable borrow occurs here
[INFO] [stderr]     |                 mutable borrow later used here
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this error has been downgraded to a warning for backwards compatibility with previous releases
[INFO] [stderr]     = warning: this represents potential undefined behavior in your code and this warning will become a hard error in the future
[INFO] [stderr]     = note: for more information, try `rustc --explain E0729`
[INFO] [stderr] 
[INFO] [stderr]    Compiling tiny-raytracer v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused imports: `DiffuseKind`, `Diffuse`, `Refract`, `Specular`, `reflect`, `refract`
[INFO] [stderr]  --> src/object.rs:3:16
[INFO] [stderr]   |
[INFO] [stderr] 3 |     material::{Diffuse, DiffuseKind, Material, Refract, Specular},
[INFO] [stderr]   |                ^^^^^^^  ^^^^^^^^^^^            ^^^^^^^  ^^^^^^^^
[INFO] [stderr] 4 |     math::{reflect, refract},
[INFO] [stderr]   |            ^^^^^^^  ^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 35.73s
[INFO] running `"docker" "inspect" "19d02897fcc13db21ba743221e0d9ea8daaab98bf1295216f76940da372526eb"`
[INFO] running `"docker" "rm" "-f" "19d02897fcc13db21ba743221e0d9ea8daaab98bf1295216f76940da372526eb"`
[INFO] [stdout] 19d02897fcc13db21ba743221e0d9ea8daaab98bf1295216f76940da372526eb
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-5/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/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=warn" "-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" "+1.38.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] c2971e3e22cfc5613080432e4e4c8cf908d0f75502daaac2d501d6b73712a8cb
[INFO] running `"docker" "start" "-a" "c2971e3e22cfc5613080432e4e4c8cf908d0f75502daaac2d501d6b73712a8cb"`
[INFO] [stderr]    Compiling tiny-raytracer v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused imports: `DiffuseKind`, `Diffuse`, `Refract`, `Specular`, `reflect`, `refract`
[INFO] [stderr]  --> src/object.rs:3:16
[INFO] [stderr]   |
[INFO] [stderr] 3 |     material::{Diffuse, DiffuseKind, Material, Refract, Specular},
[INFO] [stderr]   |                ^^^^^^^  ^^^^^^^^^^^            ^^^^^^^  ^^^^^^^^
[INFO] [stderr] 4 |     math::{reflect, refract},
[INFO] [stderr]   |            ^^^^^^^  ^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.34s
[INFO] running `"docker" "inspect" "c2971e3e22cfc5613080432e4e4c8cf908d0f75502daaac2d501d6b73712a8cb"`
[INFO] running `"docker" "rm" "-f" "c2971e3e22cfc5613080432e4e4c8cf908d0f75502daaac2d501d6b73712a8cb"`
[INFO] [stdout] c2971e3e22cfc5613080432e4e4c8cf908d0f75502daaac2d501d6b73712a8cb
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-5/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/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=warn" "-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" "+1.38.0" "test" "--frozen"`
[INFO] [stdout] 2cfad6771d19dd8acc96990141aa46c39efe3cb64e7714a18d08a74512ebb112
[INFO] running `"docker" "start" "-a" "2cfad6771d19dd8acc96990141aa46c39efe3cb64e7714a18d08a74512ebb112"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.45s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/tiny_raytracer-aa791d7a9ed77094
[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
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/tiny_raytracer-1945d9ece3b22030
[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
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests tiny-raytracer
[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
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "2cfad6771d19dd8acc96990141aa46c39efe3cb64e7714a18d08a74512ebb112"`
[INFO] running `"docker" "rm" "-f" "2cfad6771d19dd8acc96990141aa46c39efe3cb64e7714a18d08a74512ebb112"`
[INFO] [stdout] 2cfad6771d19dd8acc96990141aa46c39efe3cb64e7714a18d08a74512ebb112