[INFO] updating cached repository faern/balloon
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/faern/balloon
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/faern/balloon" "work/ex/beta-1.38-1/sources/1.37.0/gh/faern/balloon"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/faern/balloon'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/faern/balloon" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/faern/balloon"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/faern/balloon'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] e07cc4753344c219df2167baaf56c0aacd596de8
[INFO] sha for GitHub repo faern/balloon: e07cc4753344c219df2167baaf56c0aacd596de8
[INFO] validating manifest of faern/balloon 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 faern/balloon 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 faern/balloon
[INFO] finished frobbing faern/balloon
[INFO] frobbed toml for faern/balloon written to work/ex/beta-1.38-1/sources/1.37.0/gh/faern/balloon/Cargo.toml
[INFO] started frobbing faern/balloon
[INFO] finished frobbing faern/balloon
[INFO] frobbed toml for faern/balloon written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/faern/balloon/Cargo.toml
[INFO] crate faern/balloon 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] [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] [stderr]     Blocking waiting for file lock on package cache
[INFO] testing faern/balloon 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-4/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/faern/balloon:/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] d2da81817e31a4d0800b135dcde94b4e6e67df4a1dc355b21850e9fcf7535c5c
[INFO] running `"docker" "start" "-a" "d2da81817e31a4d0800b135dcde94b4e6e67df4a1dc355b21850e9fcf7535c5c"`
[INFO] [stderr]    Compiling libc v0.2.59
[INFO] [stderr]    Compiling bitflags v1.1.0
[INFO] [stderr]    Compiling syn v0.15.39
[INFO] [stderr]    Compiling unicode-segmentation v1.3.0
[INFO] [stderr]    Compiling strsim v0.8.0
[INFO] [stderr]    Compiling rand_core v0.5.0
[INFO] [stderr]    Compiling number_prefix v0.3.0
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]    Compiling rand_xorshift v0.2.0
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]    Compiling atty v0.2.12
[INFO] [stderr]    Compiling region v2.1.2
[INFO] [stderr]    Compiling clap v2.33.0
[INFO] [stderr]    Compiling structopt-derive v0.2.18
[INFO] [stderr]    Compiling structopt v0.2.18
[INFO] [stderr]    Compiling memory-balloon v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 37.65s
[INFO] running `"docker" "inspect" "d2da81817e31a4d0800b135dcde94b4e6e67df4a1dc355b21850e9fcf7535c5c"`
[INFO] running `"docker" "rm" "-f" "d2da81817e31a4d0800b135dcde94b4e6e67df4a1dc355b21850e9fcf7535c5c"`
[INFO] [stdout] d2da81817e31a4d0800b135dcde94b4e6e67df4a1dc355b21850e9fcf7535c5c
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/faern/balloon:/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] a80f5dd345dcfa10ed87f9be37d9531abb4f463b6caadbe4772608ba4b25bb53
[INFO] running `"docker" "start" "-a" "a80f5dd345dcfa10ed87f9be37d9531abb4f463b6caadbe4772608ba4b25bb53"`
[INFO] [stderr]    Compiling memory-balloon v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.92s
[INFO] running `"docker" "inspect" "a80f5dd345dcfa10ed87f9be37d9531abb4f463b6caadbe4772608ba4b25bb53"`
[INFO] running `"docker" "rm" "-f" "a80f5dd345dcfa10ed87f9be37d9531abb4f463b6caadbe4772608ba4b25bb53"`
[INFO] [stdout] a80f5dd345dcfa10ed87f9be37d9531abb4f463b6caadbe4772608ba4b25bb53
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/faern/balloon:/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] 80bec2f3ff315b47240b8df11c98fadca4faba759340a8c5d8f6fe4cc91ebec2
[INFO] running `"docker" "start" "-a" "80bec2f3ff315b47240b8df11c98fadca4faba759340a8c5d8f6fe4cc91ebec2"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.10s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/balloon-6565333bf98201a4
[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" "80bec2f3ff315b47240b8df11c98fadca4faba759340a8c5d8f6fe4cc91ebec2"`
[INFO] running `"docker" "rm" "-f" "80bec2f3ff315b47240b8df11c98fadca4faba759340a8c5d8f6fe4cc91ebec2"`
[INFO] [stdout] 80bec2f3ff315b47240b8df11c98fadca4faba759340a8c5d8f6fe4cc91ebec2