[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 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-1/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/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" "+beta-2019-08-13" "build" "--frozen"`
[INFO] [stdout] cd1b25d494c5e5530657505dd1cc05babe03ee1efa2a796fc4cc679015e02321
[INFO] running `"docker" "start" "-a" "cd1b25d494c5e5530657505dd1cc05babe03ee1efa2a796fc4cc679015e02321"`
[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 0.82s
[INFO] running `"docker" "inspect" "cd1b25d494c5e5530657505dd1cc05babe03ee1efa2a796fc4cc679015e02321"`
[INFO] running `"docker" "rm" "-f" "cd1b25d494c5e5530657505dd1cc05babe03ee1efa2a796fc4cc679015e02321"`
[INFO] [stdout] cd1b25d494c5e5530657505dd1cc05babe03ee1efa2a796fc4cc679015e02321
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/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/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" "+beta-2019-08-13" "test" "--frozen" "--no-run"`
[INFO] [stdout] da30a9b16a9b5670d1173f9a5b09c7230a1be04366d3a8cbaa93fc366ab073f6
[INFO] running `"docker" "start" "-a" "da30a9b16a9b5670d1173f9a5b09c7230a1be04366d3a8cbaa93fc366ab073f6"`
[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 0.87s
[INFO] running `"docker" "inspect" "da30a9b16a9b5670d1173f9a5b09c7230a1be04366d3a8cbaa93fc366ab073f6"`
[INFO] running `"docker" "rm" "-f" "da30a9b16a9b5670d1173f9a5b09c7230a1be04366d3a8cbaa93fc366ab073f6"`
[INFO] [stdout] da30a9b16a9b5670d1173f9a5b09c7230a1be04366d3a8cbaa93fc366ab073f6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/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/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" "+beta-2019-08-13" "test" "--frozen"`
[INFO] [stdout] ce09eebb51372b5091dcdb9ad9627ed7815c908a8f73e0e3a895e36d263a30e1
[INFO] running `"docker" "start" "-a" "ce09eebb51372b5091dcdb9ad9627ed7815c908a8f73e0e3a895e36d263a30e1"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.07s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/example_x_rust_x_rustbyexample_com_x_variable_bindings_mut-6057746fab0e91e3
[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" "ce09eebb51372b5091dcdb9ad9627ed7815c908a8f73e0e3a895e36d263a30e1"`
[INFO] running `"docker" "rm" "-f" "ce09eebb51372b5091dcdb9ad9627ed7815c908a8f73e0e3a895e36d263a30e1"`
[INFO] [stdout] ce09eebb51372b5091dcdb9ad9627ed7815c908a8f73e0e3a895e36d263a30e1