[INFO] updating cached repository rogerallen/rustrt
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/rogerallen/rustrt
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/rogerallen/rustrt" "work/ex/beta-1.38-1/sources/1.37.0/gh/rogerallen/rustrt"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/rogerallen/rustrt'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/rogerallen/rustrt" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/rogerallen/rustrt"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/rogerallen/rustrt'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 32dc024d6d6f22a7d15e3df1edb978f1f1052d4f
[INFO] sha for GitHub repo rogerallen/rustrt: 32dc024d6d6f22a7d15e3df1edb978f1f1052d4f
[INFO] validating manifest of rogerallen/rustrt on toolchain 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of rogerallen/rustrt on toolchain beta-2019-08-13
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing rogerallen/rustrt
[INFO] finished frobbing rogerallen/rustrt
[INFO] frobbed toml for rogerallen/rustrt written to work/ex/beta-1.38-1/sources/1.37.0/gh/rogerallen/rustrt/Cargo.toml
[INFO] started frobbing rogerallen/rustrt
[INFO] finished frobbing rogerallen/rustrt
[INFO] frobbed toml for rogerallen/rustrt written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/rogerallen/rustrt/Cargo.toml
[INFO] crate rogerallen/rustrt already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing rogerallen/rustrt against beta-2019-08-13 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/rogerallen/rustrt:/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-2019-08-13" "build" "--frozen"`
[INFO] [stdout] 18c07f31c2f2134c247d065e150748b7a1061c92f3d617df41b8ed4bd7ceef81
[INFO] running `"docker" "start" "-a" "18c07f31c2f2134c247d065e150748b7a1061c92f3d617df41b8ed4bd7ceef81"`
[INFO] [stderr]    Compiling crossbeam-epoch v0.3.0
[INFO] [stderr]    Compiling crossbeam-deque v0.2.0
[INFO] [stderr]    Compiling rayon-core v1.4.0
[INFO] [stderr]    Compiling rayon v1.0.1
[INFO] [stderr]    Compiling rustrt v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/material.rs:41:17
[INFO] [stderr]    |
[INFO] [stderr] 41 |             let mut outward_normal = if entering {
[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/material.rs:46:17
[INFO] [stderr]    |
[INFO] [stderr] 46 |             let mut ni_over_nt = if entering { *ref_idx } else { 1.0 / *ref_idx };
[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/material.rs:47:17
[INFO] [stderr]    |
[INFO] [stderr] 47 |             let mut cosine = if entering {
[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/material.rs:54:17
[INFO] [stderr]    |
[INFO] [stderr] 54 |             let mut reflect_prob =
[INFO] [stderr]    |                 ----^^^^^^^^^^^^
[INFO] [stderr]    |                 |
[INFO] [stderr]    |                 help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 9.02s
[INFO] running `"docker" "inspect" "18c07f31c2f2134c247d065e150748b7a1061c92f3d617df41b8ed4bd7ceef81"`
[INFO] running `"docker" "rm" "-f" "18c07f31c2f2134c247d065e150748b7a1061c92f3d617df41b8ed4bd7ceef81"`
[INFO] [stdout] 18c07f31c2f2134c247d065e150748b7a1061c92f3d617df41b8ed4bd7ceef81
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/rogerallen/rustrt:/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-2019-08-13" "test" "--frozen" "--no-run"`
[INFO] [stdout] 48e59e674ce35b996cd3ccefbf17af640164f5c3e4ae89a3fa75d4bf1641fb92
[INFO] running `"docker" "start" "-a" "48e59e674ce35b996cd3ccefbf17af640164f5c3e4ae89a3fa75d4bf1641fb92"`
[INFO] [stderr]    Compiling rustrt v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/material.rs:41:17
[INFO] [stderr]    |
[INFO] [stderr] 41 |             let mut outward_normal = if entering {
[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/material.rs:46:17
[INFO] [stderr]    |
[INFO] [stderr] 46 |             let mut ni_over_nt = if entering { *ref_idx } else { 1.0 / *ref_idx };
[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/material.rs:47:17
[INFO] [stderr]    |
[INFO] [stderr] 47 |             let mut cosine = if entering {
[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/material.rs:54:17
[INFO] [stderr]    |
[INFO] [stderr] 54 |             let mut reflect_prob =
[INFO] [stderr]    |                 ----^^^^^^^^^^^^
[INFO] [stderr]    |                 |
[INFO] [stderr]    |                 help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.08s
[INFO] running `"docker" "inspect" "48e59e674ce35b996cd3ccefbf17af640164f5c3e4ae89a3fa75d4bf1641fb92"`
[INFO] running `"docker" "rm" "-f" "48e59e674ce35b996cd3ccefbf17af640164f5c3e4ae89a3fa75d4bf1641fb92"`
[INFO] [stdout] 48e59e674ce35b996cd3ccefbf17af640164f5c3e4ae89a3fa75d4bf1641fb92
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/rogerallen/rustrt:/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-2019-08-13" "test" "--frozen"`
[INFO] [stdout] 74bdb69cc767680ea45b6b693d50a62f88a4ddf405216859d3578a38d812baa7
[INFO] running `"docker" "start" "-a" "74bdb69cc767680ea45b6b693d50a62f88a4ddf405216859d3578a38d812baa7"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/rustrt-12a7fa6e6ae664ca
[INFO] [stdout] 
[INFO] [stdout] running 8 tests
[INFO] [stdout] test vec3::test_add ... ok
[INFO] [stdout] test vec3::test_div ... ok
[INFO] [stdout] test vec3::test_add_assign ... ok
[INFO] [stdout] test vec3::test_sub ... ok
[INFO] [stdout] test vec3::test_cross ... ok
[INFO] [stdout] test vec3::test_dot ... ok
[INFO] [stdout] test vec3::test_mul ... ok
[INFO] [stdout] test vec3::test_neg ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 8 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "74bdb69cc767680ea45b6b693d50a62f88a4ddf405216859d3578a38d812baa7"`
[INFO] running `"docker" "rm" "-f" "74bdb69cc767680ea45b6b693d50a62f88a4ddf405216859d3578a38d812baa7"`
[INFO] [stdout] 74bdb69cc767680ea45b6b693d50a62f88a4ddf405216859d3578a38d812baa7