[INFO] updating cached repository nicguzzo/keyboard-app
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/nicguzzo/keyboard-app
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/nicguzzo/keyboard-app" "work/ex/beta-1.38-1/sources/1.37.0/gh/nicguzzo/keyboard-app"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/nicguzzo/keyboard-app'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/nicguzzo/keyboard-app" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/nicguzzo/keyboard-app"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/nicguzzo/keyboard-app'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 64665a26d4084445c7cb4dc5156dc21c1e79f907
[INFO] sha for GitHub repo nicguzzo/keyboard-app: 64665a26d4084445c7cb4dc5156dc21c1e79f907
[INFO] validating manifest of nicguzzo/keyboard-app 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 nicguzzo/keyboard-app 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 nicguzzo/keyboard-app
[INFO] finished frobbing nicguzzo/keyboard-app
[INFO] frobbed toml for nicguzzo/keyboard-app written to work/ex/beta-1.38-1/sources/1.37.0/gh/nicguzzo/keyboard-app/Cargo.toml
[INFO] started frobbing nicguzzo/keyboard-app
[INFO] finished frobbing nicguzzo/keyboard-app
[INFO] frobbed toml for nicguzzo/keyboard-app written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/nicguzzo/keyboard-app/Cargo.toml
[INFO] crate nicguzzo/keyboard-app 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 nicguzzo/keyboard-app against 1.37.0 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/nicguzzo/keyboard-app:/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" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] 9d1dd2f8e769cd6a07e19fcac77dc2021439a40f04c7d94d742405b795c7e9a3
[INFO] running `"docker" "start" "-a" "9d1dd2f8e769cd6a07e19fcac77dc2021439a40f04c7d94d742405b795c7e9a3"`
[INFO] [stderr]    Compiling openssl v0.9.15
[INFO] [stderr]    Compiling openssl-sys v0.9.15
[INFO] [stderr]    Compiling iovec v0.1.0
[INFO] [stderr]    Compiling net2 v0.2.30
[INFO] [stderr]    Compiling termios v0.2.2
[INFO] [stderr]    Compiling ioctl-rs v0.1.5
[INFO] [stderr]    Compiling serial-core v0.4.0
[INFO] [stderr]    Compiling bytes v0.4.4
[INFO] [stderr]    Compiling serial-unix v0.4.0
[INFO] [stderr]    Compiling mio v0.6.10
[INFO] [stderr]    Compiling serial v0.4.0
[INFO] [stderr]    Compiling tokio-io v0.1.2
[INFO] [stderr]    Compiling tokio-core v0.1.9
[INFO] [stderr]    Compiling native-tls v0.1.4
[INFO] [stderr]    Compiling tokio-tls v0.1.3
[INFO] [stderr]    Compiling websocket v0.20.2
[INFO] [stderr]    Compiling keyboard-app v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `std::env`
[INFO] [stderr]   --> src/main.rs:14:5
[INFO] [stderr]    |
[INFO] [stderr] 14 | use std::env;
[INFO] [stderr]    |     ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 26.18s
[INFO] running `"docker" "inspect" "9d1dd2f8e769cd6a07e19fcac77dc2021439a40f04c7d94d742405b795c7e9a3"`
[INFO] running `"docker" "rm" "-f" "9d1dd2f8e769cd6a07e19fcac77dc2021439a40f04c7d94d742405b795c7e9a3"`
[INFO] [stdout] 9d1dd2f8e769cd6a07e19fcac77dc2021439a40f04c7d94d742405b795c7e9a3
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/nicguzzo/keyboard-app:/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" "+1.37.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 5d285fc3ef9f665a9ffa0892e0a058bcb7b93b34db1299e9f9da69db3b85df3f
[INFO] running `"docker" "start" "-a" "5d285fc3ef9f665a9ffa0892e0a058bcb7b93b34db1299e9f9da69db3b85df3f"`
[INFO] [stderr]    Compiling keyboard-app v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `std::env`
[INFO] [stderr]   --> src/main.rs:14:5
[INFO] [stderr]    |
[INFO] [stderr] 14 | use std::env;
[INFO] [stderr]    |     ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.19s
[INFO] running `"docker" "inspect" "5d285fc3ef9f665a9ffa0892e0a058bcb7b93b34db1299e9f9da69db3b85df3f"`
[INFO] running `"docker" "rm" "-f" "5d285fc3ef9f665a9ffa0892e0a058bcb7b93b34db1299e9f9da69db3b85df3f"`
[INFO] [stdout] 5d285fc3ef9f665a9ffa0892e0a058bcb7b93b34db1299e9f9da69db3b85df3f
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/nicguzzo/keyboard-app:/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" "+1.37.0" "test" "--frozen"`
[INFO] [stdout] 38276b3dbf985f2a75b354e6969e5906a758ab3387fb89afb7378da8271c2856
[INFO] running `"docker" "start" "-a" "38276b3dbf985f2a75b354e6969e5906a758ab3387fb89afb7378da8271c2856"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.22s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/keyboard_app-fee6057f7beee011
[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" "38276b3dbf985f2a75b354e6969e5906a758ab3387fb89afb7378da8271c2856"`
[INFO] running `"docker" "rm" "-f" "38276b3dbf985f2a75b354e6969e5906a758ab3387fb89afb7378da8271c2856"`
[INFO] [stdout] 38276b3dbf985f2a75b354e6969e5906a758ab3387fb89afb7378da8271c2856