[INFO] updating cached repository tirr-c/tiny-raytracer
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/tirr-c/tiny-raytracer
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/tirr-c/tiny-raytracer" "work/ex/beta-1.37-6/sources/1.36.0/gh/tirr-c/tiny-raytracer"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/tirr-c/tiny-raytracer'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/tirr-c/tiny-raytracer" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/tirr-c/tiny-raytracer"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/tirr-c/tiny-raytracer'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 3a307bc002b273278474e813cd11eb446df44673
[INFO] sha for GitHub repo tirr-c/tiny-raytracer: 3a307bc002b273278474e813cd11eb446df44673
[INFO] validating manifest of tirr-c/tiny-raytracer on toolchain 1.36.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of tirr-c/tiny-raytracer on toolchain beta-2019-07-23
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing tirr-c/tiny-raytracer
[INFO] finished frobbing tirr-c/tiny-raytracer
[INFO] frobbed toml for tirr-c/tiny-raytracer written to work/ex/beta-1.37-6/sources/1.36.0/gh/tirr-c/tiny-raytracer/Cargo.toml
[INFO] started frobbing tirr-c/tiny-raytracer
[INFO] finished frobbing tirr-c/tiny-raytracer
[INFO] frobbed toml for tirr-c/tiny-raytracer written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/tirr-c/tiny-raytracer/Cargo.toml
[INFO] crate tirr-c/tiny-raytracer already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache lock
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing tirr-c/tiny-raytracer against beta-2019-07-23 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-6/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/tirr-c/tiny-raytracer:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+beta-2019-07-23" "build" "--frozen"`
[INFO] [stdout] 1b6a159f38ff9af1505775d525d68eded588f770d8eba927002978dcf2d377aa
[INFO] running `"docker" "start" "-a" "1b6a159f38ff9af1505775d525d68eded588f770d8eba927002978dcf2d377aa"`
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling backtrace-sys v0.1.28
[INFO] [stderr]    Compiling approx v0.3.1
[INFO] [stderr]    Compiling num-complex v0.2.1
[INFO] [stderr]    Compiling num_cpus v1.10.0
[INFO] [stderr]    Compiling num-iter v0.1.37
[INFO] [stderr]    Compiling rand_pcg v0.1.1
[INFO] [stderr]    Compiling synstructure v0.10.1
[INFO] [stderr]    Compiling backtrace v0.3.13
[INFO] [stderr]    Compiling png v0.14.0
[INFO] [stderr]    Compiling rayon-core v1.4.1
[INFO] [stderr]    Compiling alga v0.8.1
[INFO] [stderr]    Compiling failure_derive v0.1.5
[INFO] [stderr]    Compiling rayon v1.0.3
[INFO] [stderr]    Compiling failure v0.1.5
[INFO] [stderr]    Compiling nalgebra v0.17.0
[INFO] [stderr] warning[E0502]: cannot borrow `*self` as immutable because it is also borrowed as mutable
[INFO] [stderr]    --> /opt/crater/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/crater/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 56.96s
[INFO] running `"docker" "inspect" "1b6a159f38ff9af1505775d525d68eded588f770d8eba927002978dcf2d377aa"`
[INFO] running `"docker" "rm" "-f" "1b6a159f38ff9af1505775d525d68eded588f770d8eba927002978dcf2d377aa"`
[INFO] [stdout] 1b6a159f38ff9af1505775d525d68eded588f770d8eba927002978dcf2d377aa
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-6/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/tirr-c/tiny-raytracer:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+beta-2019-07-23" "test" "--frozen" "--no-run"`
[INFO] [stdout] 4d080cb685362b53084a8292cbcc7e6e4ba27faf53485904e2ab6fbf2f6d2921
[INFO] running `"docker" "start" "-a" "4d080cb685362b53084a8292cbcc7e6e4ba27faf53485904e2ab6fbf2f6d2921"`
[INFO] [stderr]    Compiling tiny-raytracer v0.1.0 (/opt/crater/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 2.31s
[INFO] running `"docker" "inspect" "4d080cb685362b53084a8292cbcc7e6e4ba27faf53485904e2ab6fbf2f6d2921"`
[INFO] running `"docker" "rm" "-f" "4d080cb685362b53084a8292cbcc7e6e4ba27faf53485904e2ab6fbf2f6d2921"`
[INFO] [stdout] 4d080cb685362b53084a8292cbcc7e6e4ba27faf53485904e2ab6fbf2f6d2921
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-6/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/tirr-c/tiny-raytracer:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+beta-2019-07-23" "test" "--frozen"`
[INFO] [stdout] 4c65411749d378f426010c4ef60a54292243d6d37306546e6deeaeb637cf94ea
[INFO] running `"docker" "start" "-a" "4c65411749d378f426010c4ef60a54292243d6d37306546e6deeaeb637cf94ea"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.16s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/tiny_raytracer-369937c3f348d2cf
[INFO] [stderr]      Running /opt/crater/target/debug/deps/tiny_raytracer-2a5f31ce00ce324c
[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] [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" "4c65411749d378f426010c4ef60a54292243d6d37306546e6deeaeb637cf94ea"`
[INFO] running `"docker" "rm" "-f" "4c65411749d378f426010c4ef60a54292243d6d37306546e6deeaeb637cf94ea"`
[INFO] [stdout] 4c65411749d378f426010c4ef60a54292243d6d37306546e6deeaeb637cf94ea