[INFO] updating cached repository chrissharp80/rust_read_file
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/chrissharp80/rust_read_file
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/chrissharp80/rust_read_file" "work/ex/beta-1.38-1/sources/1.37.0/gh/chrissharp80/rust_read_file"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/chrissharp80/rust_read_file'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/chrissharp80/rust_read_file" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/chrissharp80/rust_read_file"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/chrissharp80/rust_read_file'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] aafcb04efcb7ae1aa851dd9a000a1547a5401491
[INFO] sha for GitHub repo chrissharp80/rust_read_file: aafcb04efcb7ae1aa851dd9a000a1547a5401491
[INFO] validating manifest of chrissharp80/rust_read_file 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 chrissharp80/rust_read_file 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 chrissharp80/rust_read_file
[INFO] finished frobbing chrissharp80/rust_read_file
[INFO] frobbed toml for chrissharp80/rust_read_file written to work/ex/beta-1.38-1/sources/1.37.0/gh/chrissharp80/rust_read_file/Cargo.toml
[INFO] started frobbing chrissharp80/rust_read_file
[INFO] finished frobbing chrissharp80/rust_read_file
[INFO] frobbed toml for chrissharp80/rust_read_file written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/chrissharp80/rust_read_file/Cargo.toml
[INFO] crate chrissharp80/rust_read_file 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] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] testing chrissharp80/rust_read_file 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-2/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/chrissharp80/rust_read_file:/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] 40daa217b17d4f1844af524214bbb81b22a4e435d38b77b9e2419a0d5305e87d
[INFO] running `"docker" "start" "-a" "40daa217b17d4f1844af524214bbb81b22a4e435d38b77b9e2419a0d5305e87d"`
[INFO] [stderr]    Compiling text_io v0.1.6
[INFO] [stderr]    Compiling union_find v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.65s
[INFO] running `"docker" "inspect" "40daa217b17d4f1844af524214bbb81b22a4e435d38b77b9e2419a0d5305e87d"`
[INFO] running `"docker" "rm" "-f" "40daa217b17d4f1844af524214bbb81b22a4e435d38b77b9e2419a0d5305e87d"`
[INFO] [stdout] 40daa217b17d4f1844af524214bbb81b22a4e435d38b77b9e2419a0d5305e87d
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/chrissharp80/rust_read_file:/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] 50a16eda4a5c925ddc78a6c72cebce3835d6bb84088e5148897a99b5acd189c3
[INFO] running `"docker" "start" "-a" "50a16eda4a5c925ddc78a6c72cebce3835d6bb84088e5148897a99b5acd189c3"`
[INFO] [stderr]    Compiling union_find v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.41s
[INFO] running `"docker" "inspect" "50a16eda4a5c925ddc78a6c72cebce3835d6bb84088e5148897a99b5acd189c3"`
[INFO] running `"docker" "rm" "-f" "50a16eda4a5c925ddc78a6c72cebce3835d6bb84088e5148897a99b5acd189c3"`
[INFO] [stdout] 50a16eda4a5c925ddc78a6c72cebce3835d6bb84088e5148897a99b5acd189c3
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/chrissharp80/rust_read_file:/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] deafda5de62f47ddd048250a4442639de814ae5f88bb66ce50a364bd4c3cbf0d
[INFO] running `"docker" "start" "-a" "deafda5de62f47ddd048250a4442639de814ae5f88bb66ce50a364bd4c3cbf0d"`
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stdout] running 0 tests
[INFO] [stderr]      Running /opt/crater/target/debug/deps/union_find-5b32e557bbe88b64
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "deafda5de62f47ddd048250a4442639de814ae5f88bb66ce50a364bd4c3cbf0d"`
[INFO] running `"docker" "rm" "-f" "deafda5de62f47ddd048250a4442639de814ae5f88bb66ce50a364bd4c3cbf0d"`
[INFO] [stdout] deafda5de62f47ddd048250a4442639de814ae5f88bb66ce50a364bd4c3cbf0d