[INFO] updating cached repository the-wendell/margin_calculator
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/the-wendell/margin_calculator
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/the-wendell/margin_calculator" "work/ex/beta-1.38-1/sources/1.37.0/gh/the-wendell/margin_calculator"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/the-wendell/margin_calculator'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/the-wendell/margin_calculator" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/the-wendell/margin_calculator"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/the-wendell/margin_calculator'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 5d698d65292c77340375c66975732c6c2faa784d
[INFO] sha for GitHub repo the-wendell/margin_calculator: 5d698d65292c77340375c66975732c6c2faa784d
[INFO] validating manifest of the-wendell/margin_calculator 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 the-wendell/margin_calculator 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 the-wendell/margin_calculator
[INFO] finished frobbing the-wendell/margin_calculator
[INFO] frobbed toml for the-wendell/margin_calculator written to work/ex/beta-1.38-1/sources/1.37.0/gh/the-wendell/margin_calculator/Cargo.toml
[INFO] started frobbing the-wendell/margin_calculator
[INFO] finished frobbing the-wendell/margin_calculator
[INFO] frobbed toml for the-wendell/margin_calculator written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/the-wendell/margin_calculator/Cargo.toml
[INFO] crate the-wendell/margin_calculator 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] testing the-wendell/margin_calculator against beta-2019-08-13 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/the-wendell/margin_calculator:/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" "+beta-2019-08-13" "build" "--frozen"`
[INFO] [stdout] 7f9f4b69cb454865bdd9336b513664a04bfe7e2993946e20c16ee4b00154d45e
[INFO] running `"docker" "start" "-a" "7f9f4b69cb454865bdd9336b513664a04bfe7e2993946e20c16ee4b00154d45e"`
[INFO] [stderr]    Compiling libcruby-sys v0.7.5
[INFO] [stderr]    Compiling cstr-macro v0.1.0
[INFO] [stderr]    Compiling helix v0.7.5
[INFO] [stderr]    Compiling margin_calculator v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.52s
[INFO] running `"docker" "inspect" "7f9f4b69cb454865bdd9336b513664a04bfe7e2993946e20c16ee4b00154d45e"`
[INFO] running `"docker" "rm" "-f" "7f9f4b69cb454865bdd9336b513664a04bfe7e2993946e20c16ee4b00154d45e"`
[INFO] [stdout] 7f9f4b69cb454865bdd9336b513664a04bfe7e2993946e20c16ee4b00154d45e
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/the-wendell/margin_calculator:/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" "+beta-2019-08-13" "test" "--frozen" "--no-run"`
[INFO] [stdout] a0555a7be5e8cd235f0608e7ae48e87da1d3d4891e0068008348ca5aba877402
[INFO] running `"docker" "start" "-a" "a0555a7be5e8cd235f0608e7ae48e87da1d3d4891e0068008348ca5aba877402"`
[INFO] [stderr]    Compiling margin_calculator v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.32s
[INFO] running `"docker" "inspect" "a0555a7be5e8cd235f0608e7ae48e87da1d3d4891e0068008348ca5aba877402"`
[INFO] running `"docker" "rm" "-f" "a0555a7be5e8cd235f0608e7ae48e87da1d3d4891e0068008348ca5aba877402"`
[INFO] [stdout] a0555a7be5e8cd235f0608e7ae48e87da1d3d4891e0068008348ca5aba877402
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/the-wendell/margin_calculator:/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" "+beta-2019-08-13" "test" "--frozen"`
[INFO] [stdout] 37a017b2a1021e27a762ed6a162d108f23a815d5386c80e3da8023f862cf6209
[INFO] running `"docker" "start" "-a" "37a017b2a1021e27a762ed6a162d108f23a815d5386c80e3da8023f862cf6209"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/margin_calculator-355052fb468fe714
[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" "37a017b2a1021e27a762ed6a162d108f23a815d5386c80e3da8023f862cf6209"`
[INFO] running `"docker" "rm" "-f" "37a017b2a1021e27a762ed6a162d108f23a815d5386c80e3da8023f862cf6209"`
[INFO] [stdout] 37a017b2a1021e27a762ed6a162d108f23a815d5386c80e3da8023f862cf6209