[INFO] updating cached repository mindstorm-rs/ev3-rs
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/mindstorm-rs/ev3-rs
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/mindstorm-rs/ev3-rs" "work/ex/beta-1.38-1/sources/1.37.0/gh/mindstorm-rs/ev3-rs"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/mindstorm-rs/ev3-rs'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/mindstorm-rs/ev3-rs" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/mindstorm-rs/ev3-rs"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/mindstorm-rs/ev3-rs'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] f6f43be8b20786b41816b38c5434122508a7a538
[INFO] sha for GitHub repo mindstorm-rs/ev3-rs: f6f43be8b20786b41816b38c5434122508a7a538
[INFO] validating manifest of mindstorm-rs/ev3-rs 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 mindstorm-rs/ev3-rs 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 mindstorm-rs/ev3-rs
[INFO] finished frobbing mindstorm-rs/ev3-rs
[INFO] frobbed toml for mindstorm-rs/ev3-rs written to work/ex/beta-1.38-1/sources/1.37.0/gh/mindstorm-rs/ev3-rs/Cargo.toml
[INFO] started frobbing mindstorm-rs/ev3-rs
[INFO] finished frobbing mindstorm-rs/ev3-rs
[INFO] frobbed toml for mindstorm-rs/ev3-rs written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/mindstorm-rs/ev3-rs/Cargo.toml
[INFO] crate mindstorm-rs/ev3-rs 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 mindstorm-rs/ev3-rs 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/mindstorm-rs/ev3-rs:/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] 18dcbadb758958be962786eac2df787fccf927fa3f70657ab0da84047a6abdd9
[INFO] running `"docker" "start" "-a" "18dcbadb758958be962786eac2df787fccf927fa3f70657ab0da84047a6abdd9"`
[INFO] [stderr]    Compiling ev3rt v0.2.0
[INFO] [stderr]    Compiling ev3 v0.2.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.66s
[INFO] running `"docker" "inspect" "18dcbadb758958be962786eac2df787fccf927fa3f70657ab0da84047a6abdd9"`
[INFO] running `"docker" "rm" "-f" "18dcbadb758958be962786eac2df787fccf927fa3f70657ab0da84047a6abdd9"`
[INFO] [stdout] 18dcbadb758958be962786eac2df787fccf927fa3f70657ab0da84047a6abdd9
[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/mindstorm-rs/ev3-rs:/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] 8f85839911a178a02d6b476c421f743fb4fd474aa04a906d6f094d3a7503e328
[INFO] running `"docker" "start" "-a" "8f85839911a178a02d6b476c421f743fb4fd474aa04a906d6f094d3a7503e328"`
[INFO] [stderr]    Compiling ev3 v0.2.0 (/opt/crater/workdir)
[INFO] [stderr] error: duplicate lang item in crate `std`: `panic_impl`.
[INFO] [stderr]   |
[INFO] [stderr]   = note: first defined in crate `ev3rt`.
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] error: Could not compile `ev3`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "8f85839911a178a02d6b476c421f743fb4fd474aa04a906d6f094d3a7503e328"`
[INFO] running `"docker" "rm" "-f" "8f85839911a178a02d6b476c421f743fb4fd474aa04a906d6f094d3a7503e328"`
[INFO] [stdout] 8f85839911a178a02d6b476c421f743fb4fd474aa04a906d6f094d3a7503e328