[INFO] crate guessmetest 0.1.0 is already in cache
[INFO] extracting crate guessmetest 0.1.0 into work/ex/beta-1.38-1/sources/1.37.0/reg/guessmetest/0.1.0
[INFO] extracting crate guessmetest 0.1.0 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/guessmetest/0.1.0
[INFO] validating manifest of guessmetest-0.1.0 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 guessmetest-0.1.0 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 guessmetest-0.1.0
[INFO] finished frobbing guessmetest-0.1.0
[INFO] frobbed toml for guessmetest-0.1.0 written to work/ex/beta-1.38-1/sources/1.37.0/reg/guessmetest/0.1.0/Cargo.toml
[INFO] started frobbing guessmetest-0.1.0
[INFO] finished frobbing guessmetest-0.1.0
[INFO] frobbed toml for guessmetest-0.1.0 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/guessmetest/0.1.0/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[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 guessmetest-0.1.0 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/reg/guessmetest/0.1.0:/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] 607bb58e8db06da793a33fbae519dae7274b23e7c75ddf8916b8d7c73c082595
[INFO] running `"docker" "start" "-a" "607bb58e8db06da793a33fbae519dae7274b23e7c75ddf8916b8d7c73c082595"`
[INFO] [stderr]    Compiling guessmetest v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `thread_rng`
[INFO] [stderr]  --> src/main.rs:1:12
[INFO] [stderr]   |
[INFO] [stderr] 1 | use rand::{thread_rng, Rng};
[INFO] [stderr]   |            ^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.72s
[INFO] running `"docker" "inspect" "607bb58e8db06da793a33fbae519dae7274b23e7c75ddf8916b8d7c73c082595"`
[INFO] running `"docker" "rm" "-f" "607bb58e8db06da793a33fbae519dae7274b23e7c75ddf8916b8d7c73c082595"`
[INFO] [stdout] 607bb58e8db06da793a33fbae519dae7274b23e7c75ddf8916b8d7c73c082595
[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/reg/guessmetest/0.1.0:/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] 0f37aaacfafc9dd307b5ab1586de0572bfe39ac7f831d313c9f485d865a1f5ef
[INFO] running `"docker" "start" "-a" "0f37aaacfafc9dd307b5ab1586de0572bfe39ac7f831d313c9f485d865a1f5ef"`
[INFO] [stderr]    Compiling guessmetest v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `thread_rng`
[INFO] [stderr]  --> src/main.rs:1:12
[INFO] [stderr]   |
[INFO] [stderr] 1 | use rand::{thread_rng, Rng};
[INFO] [stderr]   |            ^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.47s
[INFO] running `"docker" "inspect" "0f37aaacfafc9dd307b5ab1586de0572bfe39ac7f831d313c9f485d865a1f5ef"`
[INFO] running `"docker" "rm" "-f" "0f37aaacfafc9dd307b5ab1586de0572bfe39ac7f831d313c9f485d865a1f5ef"`
[INFO] [stdout] 0f37aaacfafc9dd307b5ab1586de0572bfe39ac7f831d313c9f485d865a1f5ef
[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/reg/guessmetest/0.1.0:/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] 2ddc49b44fed0df51289c2ddba41fccc42cd1cb96459e2f71e0683b5ced005f8
[INFO] running `"docker" "start" "-a" "2ddc49b44fed0df51289c2ddba41fccc42cd1cb96459e2f71e0683b5ced005f8"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/guessmetest-a592d6510e4c518d
[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" "2ddc49b44fed0df51289c2ddba41fccc42cd1cb96459e2f71e0683b5ced005f8"`
[INFO] running `"docker" "rm" "-f" "2ddc49b44fed0df51289c2ddba41fccc42cd1cb96459e2f71e0683b5ced005f8"`
[INFO] [stdout] 2ddc49b44fed0df51289c2ddba41fccc42cd1cb96459e2f71e0683b5ced005f8