[INFO] updating cached repository jairoandre/rustsnes
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/jairoandre/rustsnes
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/jairoandre/rustsnes" "work/ex/beta-1.38-1/sources/1.37.0/gh/jairoandre/rustsnes"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/jairoandre/rustsnes'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/jairoandre/rustsnes" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/jairoandre/rustsnes"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/jairoandre/rustsnes'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] ef36e13b007e7def4bcb6de97e311b596847fbe7
[INFO] sha for GitHub repo jairoandre/rustsnes: ef36e13b007e7def4bcb6de97e311b596847fbe7
[INFO] validating manifest of jairoandre/rustsnes 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 jairoandre/rustsnes 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 jairoandre/rustsnes
[INFO] finished frobbing jairoandre/rustsnes
[INFO] frobbed toml for jairoandre/rustsnes written to work/ex/beta-1.38-1/sources/1.37.0/gh/jairoandre/rustsnes/Cargo.toml
[INFO] started frobbing jairoandre/rustsnes
[INFO] finished frobbing jairoandre/rustsnes
[INFO] frobbed toml for jairoandre/rustsnes written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/jairoandre/rustsnes/Cargo.toml
[INFO] crate jairoandre/rustsnes 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 jairoandre/rustsnes 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-6/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/jairoandre/rustsnes:/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] 08635d824749eea8ba87b146a31dcb7a6b7628aae1dd134129f4e717b08c3a08
[INFO] running `"docker" "start" "-a" "08635d824749eea8ba87b146a31dcb7a6b7628aae1dd134129f4e717b08c3a08"`
[INFO] [stderr]    Compiling rustsnes v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `file_buf`
[INFO] [stderr]   --> src/main.rs:12:7
[INFO] [stderr]    |
[INFO] [stderr] 12 |   let file_buf = file_buf;
[INFO] [stderr]    |       ^^^^^^^^ help: consider prefixing with an underscore: `_file_buf`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.05s
[INFO] running `"docker" "inspect" "08635d824749eea8ba87b146a31dcb7a6b7628aae1dd134129f4e717b08c3a08"`
[INFO] running `"docker" "rm" "-f" "08635d824749eea8ba87b146a31dcb7a6b7628aae1dd134129f4e717b08c3a08"`
[INFO] [stdout] 08635d824749eea8ba87b146a31dcb7a6b7628aae1dd134129f4e717b08c3a08
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/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/jairoandre/rustsnes:/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] b5ba177b9551d04cf38ecba14e29a81ba5362b97fbb5c10ba5018692734f11de
[INFO] running `"docker" "start" "-a" "b5ba177b9551d04cf38ecba14e29a81ba5362b97fbb5c10ba5018692734f11de"`
[INFO] [stderr]    Compiling rustsnes v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `file_buf`
[INFO] [stderr]   --> src/main.rs:12:7
[INFO] [stderr]    |
[INFO] [stderr] 12 |   let file_buf = file_buf;
[INFO] [stderr]    |       ^^^^^^^^ help: consider prefixing with an underscore: `_file_buf`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.63s
[INFO] running `"docker" "inspect" "b5ba177b9551d04cf38ecba14e29a81ba5362b97fbb5c10ba5018692734f11de"`
[INFO] running `"docker" "rm" "-f" "b5ba177b9551d04cf38ecba14e29a81ba5362b97fbb5c10ba5018692734f11de"`
[INFO] [stdout] b5ba177b9551d04cf38ecba14e29a81ba5362b97fbb5c10ba5018692734f11de
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/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/jairoandre/rustsnes:/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] e99e23f40300a0f2b5e7185d5b36e06238385fa246152433dc39c3a6eb58fe68
[INFO] running `"docker" "start" "-a" "e99e23f40300a0f2b5e7185d5b36e06238385fa246152433dc39c3a6eb58fe68"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/rustsnes-51a940554ae9f938
[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" "e99e23f40300a0f2b5e7185d5b36e06238385fa246152433dc39c3a6eb58fe68"`
[INFO] running `"docker" "rm" "-f" "e99e23f40300a0f2b5e7185d5b36e06238385fa246152433dc39c3a6eb58fe68"`
[INFO] [stdout] e99e23f40300a0f2b5e7185d5b36e06238385fa246152433dc39c3a6eb58fe68