[INFO] updating cached repository omgbrbttyl/RustBox
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/omgbrbttyl/RustBox
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/omgbrbttyl/RustBox" "work/ex/beta-1.38-1/sources/1.37.0/gh/omgbrbttyl/RustBox"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/omgbrbttyl/RustBox'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/omgbrbttyl/RustBox" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/omgbrbttyl/RustBox"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/omgbrbttyl/RustBox'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 0ab7cdb80d3e3d9b710e13b162e2e2d2d852c124
[INFO] sha for GitHub repo omgbrbttyl/RustBox: 0ab7cdb80d3e3d9b710e13b162e2e2d2d852c124
[INFO] validating manifest of omgbrbttyl/RustBox 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 omgbrbttyl/RustBox 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 omgbrbttyl/RustBox
[INFO] finished frobbing omgbrbttyl/RustBox
[INFO] frobbed toml for omgbrbttyl/RustBox written to work/ex/beta-1.38-1/sources/1.37.0/gh/omgbrbttyl/RustBox/Cargo.toml
[INFO] started frobbing omgbrbttyl/RustBox
[INFO] finished frobbing omgbrbttyl/RustBox
[INFO] frobbed toml for omgbrbttyl/RustBox written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/omgbrbttyl/RustBox/Cargo.toml
[INFO] crate omgbrbttyl/RustBox 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 omgbrbttyl/RustBox 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-7/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/omgbrbttyl/RustBox:/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] 8bb0b663fc1f0742943a08bae1bcae19e8c22d6bb68fc35442c53e5bf6c00a78
[INFO] running `"docker" "start" "-a" "8bb0b663fc1f0742943a08bae1bcae19e8c22d6bb68fc35442c53e5bf6c00a78"`
[INFO] [stderr]    Compiling RustBox v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `std::io`
[INFO] [stderr]  --> src/main.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::io;
[INFO] [stderr]   |     ^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: crate `RustBox` should have a snake case name
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(non_snake_case)] on by default
[INFO] [stderr]   = help: convert the identifier to snake case: `rust_box`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.93s
[INFO] running `"docker" "inspect" "8bb0b663fc1f0742943a08bae1bcae19e8c22d6bb68fc35442c53e5bf6c00a78"`
[INFO] running `"docker" "rm" "-f" "8bb0b663fc1f0742943a08bae1bcae19e8c22d6bb68fc35442c53e5bf6c00a78"`
[INFO] [stdout] 8bb0b663fc1f0742943a08bae1bcae19e8c22d6bb68fc35442c53e5bf6c00a78
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/omgbrbttyl/RustBox:/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] 78757612fdfd542affecad46ed4bd0d3064929083cb6f90ba4a35dffbcf4682b
[INFO] running `"docker" "start" "-a" "78757612fdfd542affecad46ed4bd0d3064929083cb6f90ba4a35dffbcf4682b"`
[INFO] [stderr]    Compiling RustBox v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `std::io`
[INFO] [stderr]  --> src/main.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::io;
[INFO] [stderr]   |     ^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: crate `RustBox` should have a snake case name
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(non_snake_case)] on by default
[INFO] [stderr]   = help: convert the identifier to snake case: `rust_box`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.74s
[INFO] running `"docker" "inspect" "78757612fdfd542affecad46ed4bd0d3064929083cb6f90ba4a35dffbcf4682b"`
[INFO] running `"docker" "rm" "-f" "78757612fdfd542affecad46ed4bd0d3064929083cb6f90ba4a35dffbcf4682b"`
[INFO] [stdout] 78757612fdfd542affecad46ed4bd0d3064929083cb6f90ba4a35dffbcf4682b
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/omgbrbttyl/RustBox:/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] f3b5e3c521e618dd27fec33007a8b3bdb7ecc6a48c00811da56b6b1c64fd96bc
[INFO] running `"docker" "start" "-a" "f3b5e3c521e618dd27fec33007a8b3bdb7ecc6a48c00811da56b6b1c64fd96bc"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/RustBox-aa83ef79e0038f16
[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" "f3b5e3c521e618dd27fec33007a8b3bdb7ecc6a48c00811da56b6b1c64fd96bc"`
[INFO] running `"docker" "rm" "-f" "f3b5e3c521e618dd27fec33007a8b3bdb7ecc6a48c00811da56b6b1c64fd96bc"`
[INFO] [stdout] f3b5e3c521e618dd27fec33007a8b3bdb7ecc6a48c00811da56b6b1c64fd96bc