[INFO] updating cached repository xoac/u8-selector
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/xoac/u8-selector
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/xoac/u8-selector" "work/ex/beta-1.38-1/sources/1.37.0/gh/xoac/u8-selector"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/xoac/u8-selector'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/xoac/u8-selector" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/xoac/u8-selector"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/xoac/u8-selector'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 75b9870d863afe15d3cd7f39105884323b2c15f3
[INFO] sha for GitHub repo xoac/u8-selector: 75b9870d863afe15d3cd7f39105884323b2c15f3
[INFO] validating manifest of xoac/u8-selector 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 xoac/u8-selector 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 xoac/u8-selector
[INFO] finished frobbing xoac/u8-selector
[INFO] frobbed toml for xoac/u8-selector written to work/ex/beta-1.38-1/sources/1.37.0/gh/xoac/u8-selector/Cargo.toml
[INFO] started frobbing xoac/u8-selector
[INFO] finished frobbing xoac/u8-selector
[INFO] frobbed toml for xoac/u8-selector written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/xoac/u8-selector/Cargo.toml
[INFO] crate xoac/u8-selector 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 xoac/u8-selector 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/xoac/u8-selector:/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] 99a35ae9fea317e8fd4f2f0b580c77ac982da6caa9aa1cc729bf0f7f54a260bd
[INFO] running `"docker" "start" "-a" "99a35ae9fea317e8fd4f2f0b580c77ac982da6caa9aa1cc729bf0f7f54a260bd"`
[INFO] [stderr]    Compiling log v0.4.2
[INFO] [stderr]    Compiling crossbeam-epoch v0.4.3
[INFO] [stderr]    Compiling tokio-timer v0.2.4
[INFO] [stderr]    Compiling nix v0.10.0
[INFO] [stderr]    Compiling mio v0.6.14
[INFO] [stderr]    Compiling tokio-io v0.1.7
[INFO] [stderr]    Compiling crossbeam-deque v0.3.1
[INFO] [stderr]    Compiling tokio-threadpool v0.1.4
[INFO] [stderr]    Compiling tokio-codec v0.1.0
[INFO] [stderr]    Compiling tokio-reactor v0.1.2
[INFO] [stderr]    Compiling tokio-fs v0.1.1
[INFO] [stderr]    Compiling tokio-tcp v0.1.0
[INFO] [stderr]    Compiling tokio-udp v0.1.1
[INFO] [stderr]    Compiling tokio v0.1.7
[INFO] [stderr]    Compiling serialport v2.3.0
[INFO] [stderr]    Compiling mio-serial v0.8.0
[INFO] [stderr]    Compiling tokio-serial v0.8.0
[INFO] [stderr]    Compiling u8-selector v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 25.78s
[INFO] running `"docker" "inspect" "99a35ae9fea317e8fd4f2f0b580c77ac982da6caa9aa1cc729bf0f7f54a260bd"`
[INFO] running `"docker" "rm" "-f" "99a35ae9fea317e8fd4f2f0b580c77ac982da6caa9aa1cc729bf0f7f54a260bd"`
[INFO] [stdout] 99a35ae9fea317e8fd4f2f0b580c77ac982da6caa9aa1cc729bf0f7f54a260bd
[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/xoac/u8-selector:/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] 11eff76a3883eacd47405bb66aba78f5efaae2f6ef8a2961e536c884460f68ce
[INFO] running `"docker" "start" "-a" "11eff76a3883eacd47405bb66aba78f5efaae2f6ef8a2961e536c884460f68ce"`
[INFO] [stderr]    Compiling termcolor v0.3.6
[INFO] [stderr]    Compiling atty v0.2.10
[INFO] [stderr]    Compiling regex-syntax v0.6.1
[INFO] [stderr]    Compiling humantime v1.1.1
[INFO] [stderr]    Compiling thread_local v0.3.5
[INFO] [stderr]    Compiling regex v1.0.0
[INFO] [stderr]    Compiling env_logger v0.5.10
[INFO] [stderr]    Compiling pretty_env_logger v0.2.3
[INFO] [stderr]    Compiling u8-selector v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 13.51s
[INFO] running `"docker" "inspect" "11eff76a3883eacd47405bb66aba78f5efaae2f6ef8a2961e536c884460f68ce"`
[INFO] running `"docker" "rm" "-f" "11eff76a3883eacd47405bb66aba78f5efaae2f6ef8a2961e536c884460f68ce"`
[INFO] [stdout] 11eff76a3883eacd47405bb66aba78f5efaae2f6ef8a2961e536c884460f68ce
[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/xoac/u8-selector:/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] ef86fedd87d3b66c1f6cc3a7238aab07b7ea50a38bfb3b41ab57292458884add
[INFO] running `"docker" "start" "-a" "ef86fedd87d3b66c1f6cc3a7238aab07b7ea50a38bfb3b41ab57292458884add"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/u8_selector-623bb74962192b2d
[INFO] [stderr]    Doc-tests u8-selector
[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] running `"docker" "inspect" "ef86fedd87d3b66c1f6cc3a7238aab07b7ea50a38bfb3b41ab57292458884add"`
[INFO] running `"docker" "rm" "-f" "ef86fedd87d3b66c1f6cc3a7238aab07b7ea50a38bfb3b41ab57292458884add"`
[INFO] [stdout] ef86fedd87d3b66c1f6cc3a7238aab07b7ea50a38bfb3b41ab57292458884add