[INFO] updating cached repository pyk/rust-reader
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/pyk/rust-reader
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/pyk/rust-reader" "work/ex/beta-1.37-6/sources/1.36.0/gh/pyk/rust-reader"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/pyk/rust-reader'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/pyk/rust-reader" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/pyk/rust-reader"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/pyk/rust-reader'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 8d2964bae75b6b6538b9b36693a238f5a2ed1a7a
[INFO] sha for GitHub repo pyk/rust-reader: 8d2964bae75b6b6538b9b36693a238f5a2ed1a7a
[INFO] validating manifest of pyk/rust-reader on toolchain 1.36.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of pyk/rust-reader on toolchain beta-2019-07-23
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing pyk/rust-reader
[INFO] finished frobbing pyk/rust-reader
[INFO] frobbed toml for pyk/rust-reader written to work/ex/beta-1.37-6/sources/1.36.0/gh/pyk/rust-reader/Cargo.toml
[INFO] started frobbing pyk/rust-reader
[INFO] finished frobbing pyk/rust-reader
[INFO] frobbed toml for pyk/rust-reader written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/pyk/rust-reader/Cargo.toml
[INFO] crate pyk/rust-reader already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing pyk/rust-reader against beta-2019-07-23 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-6/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/pyk/rust-reader:/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-2019-07-23" "build" "--frozen"`
[INFO] [stdout] 2869c7d571bb964c69897a957ec85af7d1f9b42626792af157edc57d275fbfe4
[INFO] running `"docker" "start" "-a" "2869c7d571bb964c69897a957ec85af7d1f9b42626792af157edc57d275fbfe4"`
[INFO] [stderr]    Compiling rust-reader v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.38s
[INFO] running `"docker" "inspect" "2869c7d571bb964c69897a957ec85af7d1f9b42626792af157edc57d275fbfe4"`
[INFO] running `"docker" "rm" "-f" "2869c7d571bb964c69897a957ec85af7d1f9b42626792af157edc57d275fbfe4"`
[INFO] [stdout] 2869c7d571bb964c69897a957ec85af7d1f9b42626792af157edc57d275fbfe4
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-6/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/pyk/rust-reader:/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-2019-07-23" "test" "--frozen" "--no-run"`
[INFO] [stdout] 0affd1e57060e0d032e0e0060d1f7396df072c9776b002d76cbf048d512ff55f
[INFO] running `"docker" "start" "-a" "0affd1e57060e0d032e0e0060d1f7396df072c9776b002d76cbf048d512ff55f"`
[INFO] [stderr]    Compiling rust-reader v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.39s
[INFO] running `"docker" "inspect" "0affd1e57060e0d032e0e0060d1f7396df072c9776b002d76cbf048d512ff55f"`
[INFO] running `"docker" "rm" "-f" "0affd1e57060e0d032e0e0060d1f7396df072c9776b002d76cbf048d512ff55f"`
[INFO] [stdout] 0affd1e57060e0d032e0e0060d1f7396df072c9776b002d76cbf048d512ff55f
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-6/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/pyk/rust-reader:/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-2019-07-23" "test" "--frozen"`
[INFO] [stdout] b9d8157d3627cb38b79bb7f03c41a467cffbc584219764dd0abbf43e61b9889e
[INFO] running `"docker" "start" "-a" "b9d8157d3627cb38b79bb7f03c41a467cffbc584219764dd0abbf43e61b9889e"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/buffer_bytes-3d78d239e8601069
[INFO] [stderr]      Running /opt/crater/target/debug/deps/buffer_line-03a4c0d16eee4349
[INFO] [stderr]      Running /opt/crater/target/debug/deps/buffer_reader-c05551d2601aaff5
[INFO] [stderr]      Running /opt/crater/target/debug/deps/buffer_token-74c6f3633897a27c
[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] [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] [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] [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] [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] [stderr]      Running /opt/crater/target/debug/deps/rust_reader-a339c050b67f53bd
[INFO] running `"docker" "inspect" "b9d8157d3627cb38b79bb7f03c41a467cffbc584219764dd0abbf43e61b9889e"`
[INFO] running `"docker" "rm" "-f" "b9d8157d3627cb38b79bb7f03c41a467cffbc584219764dd0abbf43e61b9889e"`
[INFO] [stdout] b9d8157d3627cb38b79bb7f03c41a467cffbc584219764dd0abbf43e61b9889e