[INFO] updating cached repository intrepion/example-x-rust-x-rustbyexample-com-x-variable_bindings-mut
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/intrepion/example-x-rust-x-rustbyexample-com-x-variable_bindings-mut
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/intrepion/example-x-rust-x-rustbyexample-com-x-variable_bindings-mut" "work/ex/beta-1.38-1/sources/1.37.0/gh/intrepion/example-x-rust-x-rustbyexample-com-x-variable_bindings-mut"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/intrepion/example-x-rust-x-rustbyexample-com-x-variable_bindings-mut'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/intrepion/example-x-rust-x-rustbyexample-com-x-variable_bindings-mut" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/intrepion/example-x-rust-x-rustbyexample-com-x-variable_bindings-mut"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/intrepion/example-x-rust-x-rustbyexample-com-x-variable_bindings-mut'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 288e46eee8d0c16e264659ac81a2ffb71ba8242e
[INFO] sha for GitHub repo intrepion/example-x-rust-x-rustbyexample-com-x-variable_bindings-mut: 288e46eee8d0c16e264659ac81a2ffb71ba8242e
[INFO] validating manifest of intrepion/example-x-rust-x-rustbyexample-com-x-variable_bindings-mut 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 intrepion/example-x-rust-x-rustbyexample-com-x-variable_bindings-mut 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 intrepion/example-x-rust-x-rustbyexample-com-x-variable_bindings-mut
[INFO] finished frobbing intrepion/example-x-rust-x-rustbyexample-com-x-variable_bindings-mut
[INFO] frobbed toml for intrepion/example-x-rust-x-rustbyexample-com-x-variable_bindings-mut written to work/ex/beta-1.38-1/sources/1.37.0/gh/intrepion/example-x-rust-x-rustbyexample-com-x-variable_bindings-mut/Cargo.toml
[INFO] started frobbing intrepion/example-x-rust-x-rustbyexample-com-x-variable_bindings-mut
[INFO] finished frobbing intrepion/example-x-rust-x-rustbyexample-com-x-variable_bindings-mut
[INFO] frobbed toml for intrepion/example-x-rust-x-rustbyexample-com-x-variable_bindings-mut written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/intrepion/example-x-rust-x-rustbyexample-com-x-variable_bindings-mut/Cargo.toml
[INFO] crate intrepion/example-x-rust-x-rustbyexample-com-x-variable_bindings-mut 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 intrepion/example-x-rust-x-rustbyexample-com-x-variable_bindings-mut 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/intrepion/example-x-rust-x-rustbyexample-com-x-variable_bindings-mut:/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] f7f3841ab46eecad8c0e9ed9f4c0e2388ed851a1b33226352338288c0151a565
[INFO] running `"docker" "start" "-a" "f7f3841ab46eecad8c0e9ed9f4c0e2388ed851a1b33226352338288c0151a565"`
[INFO] [stderr]    Compiling example-x-rust-x-rustbyexample-com-x-variable_bindings-mut v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.66s
[INFO] running `"docker" "inspect" "f7f3841ab46eecad8c0e9ed9f4c0e2388ed851a1b33226352338288c0151a565"`
[INFO] running `"docker" "rm" "-f" "f7f3841ab46eecad8c0e9ed9f4c0e2388ed851a1b33226352338288c0151a565"`
[INFO] [stdout] f7f3841ab46eecad8c0e9ed9f4c0e2388ed851a1b33226352338288c0151a565
[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/intrepion/example-x-rust-x-rustbyexample-com-x-variable_bindings-mut:/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] 7328244af5370fa6bdc1ceef2d894026f19371ba85b47459d7febcf16aa7dded
[INFO] running `"docker" "start" "-a" "7328244af5370fa6bdc1ceef2d894026f19371ba85b47459d7febcf16aa7dded"`
[INFO] [stderr]    Compiling example-x-rust-x-rustbyexample-com-x-variable_bindings-mut v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.74s
[INFO] running `"docker" "inspect" "7328244af5370fa6bdc1ceef2d894026f19371ba85b47459d7febcf16aa7dded"`
[INFO] running `"docker" "rm" "-f" "7328244af5370fa6bdc1ceef2d894026f19371ba85b47459d7febcf16aa7dded"`
[INFO] [stdout] 7328244af5370fa6bdc1ceef2d894026f19371ba85b47459d7febcf16aa7dded
[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/intrepion/example-x-rust-x-rustbyexample-com-x-variable_bindings-mut:/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] 1ea4f3d85f7e2f415de85c769a02b7105164098b79127a4f89974c06bb7981d5
[INFO] running `"docker" "start" "-a" "1ea4f3d85f7e2f415de85c769a02b7105164098b79127a4f89974c06bb7981d5"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/example_x_rust_x_rustbyexample_com_x_variable_bindings_mut-473cabaaad4f09d0
[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" "1ea4f3d85f7e2f415de85c769a02b7105164098b79127a4f89974c06bb7981d5"`
[INFO] running `"docker" "rm" "-f" "1ea4f3d85f7e2f415de85c769a02b7105164098b79127a4f89974c06bb7981d5"`
[INFO] [stdout] 1ea4f3d85f7e2f415de85c769a02b7105164098b79127a4f89974c06bb7981d5