[INFO] updating cached repository https://github.com/patrickgombert/tetris
[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] ba13d36550580bf7876f37d3632da77aeaa2b1fb
[INFO] testing patrickgombert/tetris against beta-2019-09-28 for beta-1.39-1
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpatrickgombert%2Ftetris" "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/patrickgombert/tetris on toolchain beta-2019-09-28
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/patrickgombert/tetris
[INFO] finished tweaking git repo https://github.com/patrickgombert/tetris
[INFO] tweaked toml for git repo https://github.com/patrickgombert/tetris written to work/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/patrickgombert/tetris already has a lockfile, it will not be regenerated
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-4/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" "+beta-2019-09-28" "build" "--frozen"`
[INFO] [stdout] ba67eb070af2179d9bb02a2a3f3cb04f768dba63a11934fd621d838b47f44933
[INFO] running `"docker" "start" "-a" "ba67eb070af2179d9bb02a2a3f3cb04f768dba63a11934fd621d838b47f44933"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling bzip2-sys v0.1.6
[INFO] [stderr]    Compiling deflate v0.7.19
[INFO] [stderr]    Compiling gl_generator v0.9.0
[INFO] [stderr]    Compiling syn v0.15.13
[INFO] [stderr]    Compiling euclid v0.17.3
[INFO] [stderr]    Compiling ordered-float v0.5.2
[INFO] [stderr]    Compiling alga v0.5.4
[INFO] [stderr]    Compiling twox-hash v1.1.1
[INFO] [stderr]    Compiling cgmath v0.14.1
[INFO] [stderr]    Compiling num-rational v0.1.42
[INFO] [stderr]    Compiling sdl2 v0.31.0
[INFO] [stderr]    Compiling rand v0.6.1
[INFO] [stderr]    Compiling rusttype v0.5.2
[INFO] [stderr]    Compiling png v0.12.0
[INFO] [stderr]    Compiling lyon_geom v0.10.1
[INFO] [stderr]    Compiling gfx_gl v0.5.0
[INFO] [stderr]    Compiling bzip2 v0.3.3
[INFO] [stderr]    Compiling nalgebra v0.14.4
[INFO] [stderr]    Compiling zip v0.3.3
[INFO] [stderr]    Compiling lyon_path v0.10.1
[INFO] [stderr]    Compiling lyon_tessellation v0.10.2
[INFO] [stderr]    Compiling rodio v0.7.0
[INFO] [stderr]    Compiling lyon v0.10.2
[INFO] [stderr]    Compiling derivative v1.0.1
[INFO] [stderr]    Compiling num-derive v0.2.3
[INFO] [stderr]    Compiling serde_derive v1.0.80
[INFO] [stderr]    Compiling image v0.19.0
[INFO] [stderr]    Compiling gfx_core v0.8.3
[INFO] [stderr]    Compiling gfx v0.17.1
[INFO] [stderr]    Compiling gfx_device_gl v0.15.3
[INFO] [stderr]    Compiling gfx_window_sdl v0.8.0
[INFO] [stderr]    Compiling gfx_glyph v0.10.2
[INFO] [stderr]    Compiling ggez v0.4.4
[INFO] [stderr]    Compiling tetris v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/tetris/grid.rs:97:17
[INFO] [stderr]    |
[INFO] [stderr] 97 |             let mut dead_lines: Vec<&i8> = line_counts
[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]     Finished dev [unoptimized + debuginfo] target(s) in 1m 25s
[INFO] running `"docker" "inspect" "ba67eb070af2179d9bb02a2a3f3cb04f768dba63a11934fd621d838b47f44933"`
[INFO] running `"docker" "rm" "-f" "ba67eb070af2179d9bb02a2a3f3cb04f768dba63a11934fd621d838b47f44933"`
[INFO] [stdout] ba67eb070af2179d9bb02a2a3f3cb04f768dba63a11934fd621d838b47f44933
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-4/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" "+beta-2019-09-28" "test" "--frozen" "--no-run"`
[INFO] [stdout] 38b3f9f8d9edc8c71e0d29c6f70fef80c933237d96548fd9d06de8fdac853828
[INFO] running `"docker" "start" "-a" "38b3f9f8d9edc8c71e0d29c6f70fef80c933237d96548fd9d06de8fdac853828"`
[INFO] [stderr]    Compiling tetris v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/tetris/grid.rs:97:17
[INFO] [stderr]    |
[INFO] [stderr] 97 |             let mut dead_lines: Vec<&i8> = line_counts
[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]     Finished dev [unoptimized + debuginfo] target(s) in 6.32s
[INFO] running `"docker" "inspect" "38b3f9f8d9edc8c71e0d29c6f70fef80c933237d96548fd9d06de8fdac853828"`
[INFO] running `"docker" "rm" "-f" "38b3f9f8d9edc8c71e0d29c6f70fef80c933237d96548fd9d06de8fdac853828"`
[INFO] [stdout] 38b3f9f8d9edc8c71e0d29c6f70fef80c933237d96548fd9d06de8fdac853828
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-4/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" "+beta-2019-09-28" "test" "--frozen"`
[INFO] [stdout] eb227a66efbe08082ba59a3a2cd7b27130ac70f7968bfb1400b86c366d451edb
[INFO] running `"docker" "start" "-a" "eb227a66efbe08082ba59a3a2cd7b27130ac70f7968bfb1400b86c366d451edb"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.70s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/tetris-0a02f246302fd173
[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" "eb227a66efbe08082ba59a3a2cd7b27130ac70f7968bfb1400b86c366d451edb"`
[INFO] running `"docker" "rm" "-f" "eb227a66efbe08082ba59a3a2cd7b27130ac70f7968bfb1400b86c366d451edb"`
[INFO] [stdout] eb227a66efbe08082ba59a3a2cd7b27130ac70f7968bfb1400b86c366d451edb