[INFO] updating cached repository giodamelio/little_boxes
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/giodamelio/little_boxes
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/giodamelio/little_boxes" "work/ex/beta-1.38-1/sources/1.37.0/gh/giodamelio/little_boxes"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/giodamelio/little_boxes'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/giodamelio/little_boxes" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/giodamelio/little_boxes"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/giodamelio/little_boxes'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 78c2117ea1a0762b0b2a9172ce88a7b2b3f60456
[INFO] sha for GitHub repo giodamelio/little_boxes: 78c2117ea1a0762b0b2a9172ce88a7b2b3f60456
[INFO] validating manifest of giodamelio/little_boxes 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 giodamelio/little_boxes 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 giodamelio/little_boxes
[INFO] finished frobbing giodamelio/little_boxes
[INFO] frobbed toml for giodamelio/little_boxes written to work/ex/beta-1.38-1/sources/1.37.0/gh/giodamelio/little_boxes/Cargo.toml
[INFO] started frobbing giodamelio/little_boxes
[INFO] finished frobbing giodamelio/little_boxes
[INFO] frobbed toml for giodamelio/little_boxes written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/giodamelio/little_boxes/Cargo.toml
[INFO] crate giodamelio/little_boxes 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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing giodamelio/little_boxes 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-3/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/giodamelio/little_boxes:/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] 2b694e33502f05c0cac643edfcab20245ae3e84f7d62c520a54954f6aab8c25d
[INFO] running `"docker" "start" "-a" "2b694e33502f05c0cac643edfcab20245ae3e84f7d62c520a54954f6aab8c25d"`
[INFO] [stderr]    Compiling libc v0.2.30
[INFO] [stderr]    Compiling serde v1.0.12
[INFO] [stderr]    Compiling serde_derive v1.0.12
[INFO] [stderr]    Compiling memchr v1.0.1
[INFO] [stderr]    Compiling aho-corasick v0.6.3
[INFO] [stderr]    Compiling regex v0.2.2
[INFO] [stderr]    Compiling docopt v0.8.1
[INFO] [stderr]    Compiling little_boxes v1.6.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 33.39s
[INFO] running `"docker" "inspect" "2b694e33502f05c0cac643edfcab20245ae3e84f7d62c520a54954f6aab8c25d"`
[INFO] running `"docker" "rm" "-f" "2b694e33502f05c0cac643edfcab20245ae3e84f7d62c520a54954f6aab8c25d"`
[INFO] [stdout] 2b694e33502f05c0cac643edfcab20245ae3e84f7d62c520a54954f6aab8c25d
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/giodamelio/little_boxes:/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] 3db9a721d07a81c1de18d59669af186a2642136b2fd98b643d7823cc2297cfce
[INFO] running `"docker" "start" "-a" "3db9a721d07a81c1de18d59669af186a2642136b2fd98b643d7823cc2297cfce"`
[INFO] [stderr]    Compiling little_boxes v1.6.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.21s
[INFO] running `"docker" "inspect" "3db9a721d07a81c1de18d59669af186a2642136b2fd98b643d7823cc2297cfce"`
[INFO] running `"docker" "rm" "-f" "3db9a721d07a81c1de18d59669af186a2642136b2fd98b643d7823cc2297cfce"`
[INFO] [stdout] 3db9a721d07a81c1de18d59669af186a2642136b2fd98b643d7823cc2297cfce
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/giodamelio/little_boxes:/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] 77c03ada870c561060c3ae32cded7e34432e7e440b65e687524a217b6d92cf86
[INFO] running `"docker" "start" "-a" "77c03ada870c561060c3ae32cded7e34432e7e440b65e687524a217b6d92cf86"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/little_boxes-89730535468498cc
[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" "77c03ada870c561060c3ae32cded7e34432e7e440b65e687524a217b6d92cf86"`
[INFO] running `"docker" "rm" "-f" "77c03ada870c561060c3ae32cded7e34432e7e440b65e687524a217b6d92cf86"`
[INFO] [stdout] 77c03ada870c561060c3ae32cded7e34432e7e440b65e687524a217b6d92cf86