[INFO] updating cached repository wesleimp/guess.rs
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/wesleimp/guess.rs
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/wesleimp/guess.rs" "work/ex/beta-1.38-1/sources/1.37.0/gh/wesleimp/guess.rs"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/wesleimp/guess.rs'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/wesleimp/guess.rs" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/wesleimp/guess.rs"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/wesleimp/guess.rs'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 1a77b972103fb34ceab3ef87784d3652e6574770
[INFO] sha for GitHub repo wesleimp/guess.rs: 1a77b972103fb34ceab3ef87784d3652e6574770
[INFO] validating manifest of wesleimp/guess.rs 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 wesleimp/guess.rs 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 wesleimp/guess.rs
[INFO] finished frobbing wesleimp/guess.rs
[INFO] frobbed toml for wesleimp/guess.rs written to work/ex/beta-1.38-1/sources/1.37.0/gh/wesleimp/guess.rs/Cargo.toml
[INFO] started frobbing wesleimp/guess.rs
[INFO] finished frobbing wesleimp/guess.rs
[INFO] frobbed toml for wesleimp/guess.rs written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/wesleimp/guess.rs/Cargo.toml
[INFO] crate wesleimp/guess.rs 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 wesleimp/guess.rs 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/wesleimp/guess.rs:/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] e331d5f99a78e4c8a0a15642939191917c8d349f7b86d2a24df2ddd8a78654ed
[INFO] running `"docker" "start" "-a" "e331d5f99a78e4c8a0a15642939191917c8d349f7b86d2a24df2ddd8a78654ed"`
[INFO] [stderr]    Compiling rand v0.4.6
[INFO] [stderr]    Compiling rand v0.3.23
[INFO] [stderr]    Compiling rust-studies v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.36s
[INFO] running `"docker" "inspect" "e331d5f99a78e4c8a0a15642939191917c8d349f7b86d2a24df2ddd8a78654ed"`
[INFO] running `"docker" "rm" "-f" "e331d5f99a78e4c8a0a15642939191917c8d349f7b86d2a24df2ddd8a78654ed"`
[INFO] [stdout] e331d5f99a78e4c8a0a15642939191917c8d349f7b86d2a24df2ddd8a78654ed
[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/wesleimp/guess.rs:/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] dfd6205cadb9667e6b44e049bc401fbb29bda1ddbb7d4e2640e7101ff95a9284
[INFO] running `"docker" "start" "-a" "dfd6205cadb9667e6b44e049bc401fbb29bda1ddbb7d4e2640e7101ff95a9284"`
[INFO] [stderr]    Compiling rust-studies v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.55s
[INFO] running `"docker" "inspect" "dfd6205cadb9667e6b44e049bc401fbb29bda1ddbb7d4e2640e7101ff95a9284"`
[INFO] running `"docker" "rm" "-f" "dfd6205cadb9667e6b44e049bc401fbb29bda1ddbb7d4e2640e7101ff95a9284"`
[INFO] [stdout] dfd6205cadb9667e6b44e049bc401fbb29bda1ddbb7d4e2640e7101ff95a9284
[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/wesleimp/guess.rs:/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] 92ca62277527139d03fac185fbdd161fa4ce0fac05a0c79cf2fadda7edea1ecf
[INFO] running `"docker" "start" "-a" "92ca62277527139d03fac185fbdd161fa4ce0fac05a0c79cf2fadda7edea1ecf"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/rust_studies-5bf033feafd781b7
[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" "92ca62277527139d03fac185fbdd161fa4ce0fac05a0c79cf2fadda7edea1ecf"`
[INFO] running `"docker" "rm" "-f" "92ca62277527139d03fac185fbdd161fa4ce0fac05a0c79cf2fadda7edea1ecf"`
[INFO] [stdout] 92ca62277527139d03fac185fbdd161fa4ce0fac05a0c79cf2fadda7edea1ecf