[INFO] updating cached repository learn-you-a-rust/structs_example
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/learn-you-a-rust/structs_example
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/learn-you-a-rust/structs_example" "work/ex/beta-1.38-1/sources/1.37.0/gh/learn-you-a-rust/structs_example"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/learn-you-a-rust/structs_example'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/learn-you-a-rust/structs_example" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/learn-you-a-rust/structs_example"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/learn-you-a-rust/structs_example'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] be9b4b2f694b4aa2ea787f63daa8e0c8b574a754
[INFO] sha for GitHub repo learn-you-a-rust/structs_example: be9b4b2f694b4aa2ea787f63daa8e0c8b574a754
[INFO] validating manifest of learn-you-a-rust/structs_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 learn-you-a-rust/structs_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 learn-you-a-rust/structs_example
[INFO] finished frobbing learn-you-a-rust/structs_example
[INFO] frobbed toml for learn-you-a-rust/structs_example written to work/ex/beta-1.38-1/sources/1.37.0/gh/learn-you-a-rust/structs_example/Cargo.toml
[INFO] started frobbing learn-you-a-rust/structs_example
[INFO] finished frobbing learn-you-a-rust/structs_example
[INFO] frobbed toml for learn-you-a-rust/structs_example written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/learn-you-a-rust/structs_example/Cargo.toml
[INFO] crate learn-you-a-rust/structs_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 learn-you-a-rust/structs_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-1/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/learn-you-a-rust/structs_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] 032e4661c2d8fd8052863fe26cba5d79d99641ffd568cb471e5f4cab1a977138
[INFO] running `"docker" "start" "-a" "032e4661c2d8fd8052863fe26cba5d79d99641ffd568cb471e5f4cab1a977138"`
[INFO] [stderr]    Compiling structs_example v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.29s
[INFO] running `"docker" "inspect" "032e4661c2d8fd8052863fe26cba5d79d99641ffd568cb471e5f4cab1a977138"`
[INFO] running `"docker" "rm" "-f" "032e4661c2d8fd8052863fe26cba5d79d99641ffd568cb471e5f4cab1a977138"`
[INFO] [stdout] 032e4661c2d8fd8052863fe26cba5d79d99641ffd568cb471e5f4cab1a977138
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/learn-you-a-rust/structs_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] c089560703da4e9e205db270c08b2445356bb93c9fedb08bfad1385720b0e8d9
[INFO] running `"docker" "start" "-a" "c089560703da4e9e205db270c08b2445356bb93c9fedb08bfad1385720b0e8d9"`
[INFO] [stderr]    Compiling structs_example v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.31s
[INFO] running `"docker" "inspect" "c089560703da4e9e205db270c08b2445356bb93c9fedb08bfad1385720b0e8d9"`
[INFO] running `"docker" "rm" "-f" "c089560703da4e9e205db270c08b2445356bb93c9fedb08bfad1385720b0e8d9"`
[INFO] [stdout] c089560703da4e9e205db270c08b2445356bb93c9fedb08bfad1385720b0e8d9
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/learn-you-a-rust/structs_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] ea5a300a3919e681d31cc7cd0d5ce5d252cc5e420c4fd91875c1402d8a21a60a
[INFO] running `"docker" "start" "-a" "ea5a300a3919e681d31cc7cd0d5ce5d252cc5e420c4fd91875c1402d8a21a60a"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/structs_example-ddc3c9278bccf2f1
[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" "ea5a300a3919e681d31cc7cd0d5ce5d252cc5e420c4fd91875c1402d8a21a60a"`
[INFO] running `"docker" "rm" "-f" "ea5a300a3919e681d31cc7cd0d5ce5d252cc5e420c4fd91875c1402d8a21a60a"`
[INFO] [stdout] ea5a300a3919e681d31cc7cd0d5ce5d252cc5e420c4fd91875c1402d8a21a60a