[INFO] updating cached repository andrewcunnin/rust_demo
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/andrewcunnin/rust_demo
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/andrewcunnin/rust_demo" "work/ex/beta-1.38-1/sources/1.37.0/gh/andrewcunnin/rust_demo"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/andrewcunnin/rust_demo'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/andrewcunnin/rust_demo" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/andrewcunnin/rust_demo"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/andrewcunnin/rust_demo'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 1b93c7167391a48545978cce82aa3c7018c16ae8
[INFO] sha for GitHub repo andrewcunnin/rust_demo: 1b93c7167391a48545978cce82aa3c7018c16ae8
[INFO] validating manifest of andrewcunnin/rust_demo 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 andrewcunnin/rust_demo 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 andrewcunnin/rust_demo
[INFO] finished frobbing andrewcunnin/rust_demo
[INFO] frobbed toml for andrewcunnin/rust_demo written to work/ex/beta-1.38-1/sources/1.37.0/gh/andrewcunnin/rust_demo/Cargo.toml
[INFO] started frobbing andrewcunnin/rust_demo
[INFO] finished frobbing andrewcunnin/rust_demo
[INFO] frobbed toml for andrewcunnin/rust_demo written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/andrewcunnin/rust_demo/Cargo.toml
[INFO] crate andrewcunnin/rust_demo 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 andrewcunnin/rust_demo 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/andrewcunnin/rust_demo:/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] 4f99fec42ddc40f42816ef074c0a60dbfda5a0c9515eebfec0f2412ba85f639b
[INFO] running `"docker" "start" "-a" "4f99fec42ddc40f42816ef074c0a60dbfda5a0c9515eebfec0f2412ba85f639b"`
[INFO] [stderr]    Compiling libc v0.2.60
[INFO] [stderr]    Compiling spin v0.5.0
[INFO] [stderr]    Compiling autocfg v0.1.5
[INFO] [stderr]    Compiling ppv-lite86 v0.2.5
[INFO] [stderr]    Compiling lazy_static v1.3.0
[INFO] [stderr]    Compiling rand_chacha v0.2.0
[INFO] [stderr]    Compiling getrandom v0.1.6
[INFO] [stderr]    Compiling c2-chacha v0.2.2
[INFO] [stderr]    Compiling rand_core v0.5.0
[INFO] [stderr]    Compiling rand v0.7.0
[INFO] [stderr]    Compiling rust_demo v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 12.20s
[INFO] running `"docker" "inspect" "4f99fec42ddc40f42816ef074c0a60dbfda5a0c9515eebfec0f2412ba85f639b"`
[INFO] running `"docker" "rm" "-f" "4f99fec42ddc40f42816ef074c0a60dbfda5a0c9515eebfec0f2412ba85f639b"`
[INFO] [stdout] 4f99fec42ddc40f42816ef074c0a60dbfda5a0c9515eebfec0f2412ba85f639b
[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/andrewcunnin/rust_demo:/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] 46a9b2da6a980950f2c482f4bf1743089a7150e919621413d8815b20d4b7844a
[INFO] running `"docker" "start" "-a" "46a9b2da6a980950f2c482f4bf1743089a7150e919621413d8815b20d4b7844a"`
[INFO] [stderr]    Compiling rust_demo v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.71s
[INFO] running `"docker" "inspect" "46a9b2da6a980950f2c482f4bf1743089a7150e919621413d8815b20d4b7844a"`
[INFO] running `"docker" "rm" "-f" "46a9b2da6a980950f2c482f4bf1743089a7150e919621413d8815b20d4b7844a"`
[INFO] [stdout] 46a9b2da6a980950f2c482f4bf1743089a7150e919621413d8815b20d4b7844a
[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/andrewcunnin/rust_demo:/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] 311ce053c89017e57c1df813d6dfdc8b9b2c406cf3a1aca51f2098d4aeaee6cb
[INFO] running `"docker" "start" "-a" "311ce053c89017e57c1df813d6dfdc8b9b2c406cf3a1aca51f2098d4aeaee6cb"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.15s
[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_demo-fe28eebf1c985de1
[INFO] running `"docker" "inspect" "311ce053c89017e57c1df813d6dfdc8b9b2c406cf3a1aca51f2098d4aeaee6cb"`
[INFO] running `"docker" "rm" "-f" "311ce053c89017e57c1df813d6dfdc8b9b2c406cf3a1aca51f2098d4aeaee6cb"`
[INFO] [stdout] 311ce053c89017e57c1df813d6dfdc8b9b2c406cf3a1aca51f2098d4aeaee6cb