[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 beta-2019-08-13 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/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" "+beta-2019-08-13" "build" "--frozen"`
[INFO] [stdout] db2a27edc5757f8ed044d8e88b700d5b91e2968eef8d1096dff6ffa332e539e5
[INFO] running `"docker" "start" "-a" "db2a27edc5757f8ed044d8e88b700d5b91e2968eef8d1096dff6ffa332e539e5"`
[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 0.63s
[INFO] running `"docker" "inspect" "db2a27edc5757f8ed044d8e88b700d5b91e2968eef8d1096dff6ffa332e539e5"`
[INFO] running `"docker" "rm" "-f" "db2a27edc5757f8ed044d8e88b700d5b91e2968eef8d1096dff6ffa332e539e5"`
[INFO] [stdout] db2a27edc5757f8ed044d8e88b700d5b91e2968eef8d1096dff6ffa332e539e5
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/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" "+beta-2019-08-13" "test" "--frozen" "--no-run"`
[INFO] [stdout] 7661c2e0c52f6fd70beb1d2939b69efa7adb18f853c0baae3913c8fbb5380dc6
[INFO] running `"docker" "start" "-a" "7661c2e0c52f6fd70beb1d2939b69efa7adb18f853c0baae3913c8fbb5380dc6"`
[INFO] [stderr]    Compiling union_find v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.50s
[INFO] running `"docker" "inspect" "7661c2e0c52f6fd70beb1d2939b69efa7adb18f853c0baae3913c8fbb5380dc6"`
[INFO] running `"docker" "rm" "-f" "7661c2e0c52f6fd70beb1d2939b69efa7adb18f853c0baae3913c8fbb5380dc6"`
[INFO] [stdout] 7661c2e0c52f6fd70beb1d2939b69efa7adb18f853c0baae3913c8fbb5380dc6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/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" "+beta-2019-08-13" "test" "--frozen"`
[INFO] [stdout] 44b9482ac4b097d73fa81a44bdb5719b389dbaa3d05d63f21c4c6fd90165240d
[INFO] running `"docker" "start" "-a" "44b9482ac4b097d73fa81a44bdb5719b389dbaa3d05d63f21c4c6fd90165240d"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/union_find-21fa3cb342019029
[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" "44b9482ac4b097d73fa81a44bdb5719b389dbaa3d05d63f21c4c6fd90165240d"`
[INFO] running `"docker" "rm" "-f" "44b9482ac4b097d73fa81a44bdb5719b389dbaa3d05d63f21c4c6fd90165240d"`
[INFO] [stdout] 44b9482ac4b097d73fa81a44bdb5719b389dbaa3d05d63f21c4c6fd90165240d