[INFO] updating cached repository whostolemyhat/snowflakes
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/whostolemyhat/snowflakes
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/whostolemyhat/snowflakes" "work/ex/beta-1.37-6/sources/1.36.0/gh/whostolemyhat/snowflakes"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/whostolemyhat/snowflakes'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/whostolemyhat/snowflakes" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/whostolemyhat/snowflakes"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/whostolemyhat/snowflakes'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 583546befdc15b4b1a7d65b472f4751b0ca07013
[INFO] sha for GitHub repo whostolemyhat/snowflakes: 583546befdc15b4b1a7d65b472f4751b0ca07013
[INFO] validating manifest of whostolemyhat/snowflakes 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 whostolemyhat/snowflakes 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 whostolemyhat/snowflakes
[INFO] finished frobbing whostolemyhat/snowflakes
[INFO] frobbed toml for whostolemyhat/snowflakes written to work/ex/beta-1.37-6/sources/1.36.0/gh/whostolemyhat/snowflakes/Cargo.toml
[INFO] started frobbing whostolemyhat/snowflakes
[INFO] finished frobbing whostolemyhat/snowflakes
[INFO] frobbed toml for whostolemyhat/snowflakes written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/whostolemyhat/snowflakes/Cargo.toml
[INFO] crate whostolemyhat/snowflakes 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 whostolemyhat/snowflakes against 1.36.0 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-4/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/whostolemyhat/snowflakes:/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" "+1.36.0" "build" "--frozen"`
[INFO] [stdout] 96c864b64443250ed1ba6c0651519d1e3443fa0b3d89012aafd28c74abdd0cfa
[INFO] running `"docker" "start" "-a" "96c864b64443250ed1ba6c0651519d1e3443fa0b3d89012aafd28c74abdd0cfa"`
[INFO] [stderr]    Compiling pkg-config v0.3.11
[INFO] [stderr]    Compiling cairo-rs v0.3.0
[INFO] [stderr]    Compiling rand v0.4.2
[INFO] [stderr]    Compiling glib-sys v0.5.0
[INFO] [stderr]    Compiling gobject-sys v0.5.0
[INFO] [stderr]    Compiling cairo-sys-rs v0.5.0
[INFO] [stderr]    Compiling glib v0.4.1
[INFO] [stderr]    Compiling snowflake v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 25.01s
[INFO] running `"docker" "inspect" "96c864b64443250ed1ba6c0651519d1e3443fa0b3d89012aafd28c74abdd0cfa"`
[INFO] running `"docker" "rm" "-f" "96c864b64443250ed1ba6c0651519d1e3443fa0b3d89012aafd28c74abdd0cfa"`
[INFO] [stdout] 96c864b64443250ed1ba6c0651519d1e3443fa0b3d89012aafd28c74abdd0cfa
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-4/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/whostolemyhat/snowflakes:/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" "+1.36.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] a4e378301d08afc9fc6af4c7e63c38714d98a81d2dc1e1954bb92c5c1dcf5e98
[INFO] running `"docker" "start" "-a" "a4e378301d08afc9fc6af4c7e63c38714d98a81d2dc1e1954bb92c5c1dcf5e98"`
[INFO] [stderr]    Compiling snowflake v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.30s
[INFO] running `"docker" "inspect" "a4e378301d08afc9fc6af4c7e63c38714d98a81d2dc1e1954bb92c5c1dcf5e98"`
[INFO] running `"docker" "rm" "-f" "a4e378301d08afc9fc6af4c7e63c38714d98a81d2dc1e1954bb92c5c1dcf5e98"`
[INFO] [stdout] a4e378301d08afc9fc6af4c7e63c38714d98a81d2dc1e1954bb92c5c1dcf5e98
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-4/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/whostolemyhat/snowflakes:/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" "+1.36.0" "test" "--frozen"`
[INFO] [stdout] b3684d3d62145c70a0a65a2baf5c9e117872b3c994b0d6b9c8904a32786c15aa
[INFO] running `"docker" "start" "-a" "b3684d3d62145c70a0a65a2baf5c9e117872b3c994b0d6b9c8904a32786c15aa"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/snowflake-012e502f60104c42
[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/main-d1dcb2e60ac5c8ef
[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]    Doc-tests snowflake
[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" "b3684d3d62145c70a0a65a2baf5c9e117872b3c994b0d6b9c8904a32786c15aa"`
[INFO] running `"docker" "rm" "-f" "b3684d3d62145c70a0a65a2baf5c9e117872b3c994b0d6b9c8904a32786c15aa"`
[INFO] [stdout] b3684d3d62145c70a0a65a2baf5c9e117872b3c994b0d6b9c8904a32786c15aa