[INFO] updating cached repository Velfi/failure-fern-example
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/Velfi/failure-fern-example
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/Velfi/failure-fern-example" "work/ex/beta-1.38-1/sources/1.37.0/gh/Velfi/failure-fern-example"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/Velfi/failure-fern-example'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/Velfi/failure-fern-example" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Velfi/failure-fern-example"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Velfi/failure-fern-example'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 4178a1418c6ca75b0c6b00876303d84233ee0811
[INFO] sha for GitHub repo Velfi/failure-fern-example: 4178a1418c6ca75b0c6b00876303d84233ee0811
[INFO] validating manifest of Velfi/failure-fern-example 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 Velfi/failure-fern-example 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 Velfi/failure-fern-example
[INFO] finished frobbing Velfi/failure-fern-example
[INFO] frobbed toml for Velfi/failure-fern-example written to work/ex/beta-1.38-1/sources/1.37.0/gh/Velfi/failure-fern-example/Cargo.toml
[INFO] started frobbing Velfi/failure-fern-example
[INFO] finished frobbing Velfi/failure-fern-example
[INFO] frobbed toml for Velfi/failure-fern-example written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Velfi/failure-fern-example/Cargo.toml
[INFO] crate Velfi/failure-fern-example 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 Velfi/failure-fern-example 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-0/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/Velfi/failure-fern-example:/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] 922dfd575bbabdf49bf452361b5305fa6b44fcf8515141bb4a124e27ce613d53
[INFO] running `"docker" "start" "-a" "922dfd575bbabdf49bf452361b5305fa6b44fcf8515141bb4a124e27ce613d53"`
[INFO] [stderr]    Compiling cc v1.0.6
[INFO] [stderr]    Compiling num-traits v0.2.1
[INFO] [stderr]    Compiling fern v0.5.4
[INFO] [stderr]    Compiling num-integer v0.1.36
[INFO] [stderr]    Compiling num-iter v0.1.35
[INFO] [stderr]    Compiling backtrace-sys v0.1.16
[INFO] [stderr]    Compiling num v0.1.42
[INFO] [stderr]    Compiling chrono v0.4.0
[INFO] [stderr]    Compiling backtrace v0.3.5
[INFO] [stderr]    Compiling failure v0.1.1
[INFO] [stderr]    Compiling failure-learn v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 23.21s
[INFO] running `"docker" "inspect" "922dfd575bbabdf49bf452361b5305fa6b44fcf8515141bb4a124e27ce613d53"`
[INFO] running `"docker" "rm" "-f" "922dfd575bbabdf49bf452361b5305fa6b44fcf8515141bb4a124e27ce613d53"`
[INFO] [stdout] 922dfd575bbabdf49bf452361b5305fa6b44fcf8515141bb4a124e27ce613d53
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-0/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/Velfi/failure-fern-example:/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] 2e6fe4ebab56afe01eb740471e9e56773e09edfabb3eb91a6b01c6cc6d82a32c
[INFO] running `"docker" "start" "-a" "2e6fe4ebab56afe01eb740471e9e56773e09edfabb3eb91a6b01c6cc6d82a32c"`
[INFO] [stderr]    Compiling failure-learn v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.79s
[INFO] running `"docker" "inspect" "2e6fe4ebab56afe01eb740471e9e56773e09edfabb3eb91a6b01c6cc6d82a32c"`
[INFO] running `"docker" "rm" "-f" "2e6fe4ebab56afe01eb740471e9e56773e09edfabb3eb91a6b01c6cc6d82a32c"`
[INFO] [stdout] 2e6fe4ebab56afe01eb740471e9e56773e09edfabb3eb91a6b01c6cc6d82a32c
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-0/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/Velfi/failure-fern-example:/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] 78dff6587045b49ba5354056763d6b5532d6eff3159b93f600641ee94252b244
[INFO] running `"docker" "start" "-a" "78dff6587045b49ba5354056763d6b5532d6eff3159b93f600641ee94252b244"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.09s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/failure_learn-49f3208bd84bac82
[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" "78dff6587045b49ba5354056763d6b5532d6eff3159b93f600641ee94252b244"`
[INFO] running `"docker" "rm" "-f" "78dff6587045b49ba5354056763d6b5532d6eff3159b93f600641ee94252b244"`
[INFO] [stdout] 78dff6587045b49ba5354056763d6b5532d6eff3159b93f600641ee94252b244