[INFO] crate ev3rt 0.2.0 is already in cache
[INFO] extracting crate ev3rt 0.2.0 into work/ex/beta-1.38-1/sources/1.37.0/reg/ev3rt/0.2.0
[INFO] extracting crate ev3rt 0.2.0 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/ev3rt/0.2.0
[INFO] validating manifest of ev3rt-0.2.0 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 ev3rt-0.2.0 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 ev3rt-0.2.0
[INFO] finished frobbing ev3rt-0.2.0
[INFO] frobbed toml for ev3rt-0.2.0 written to work/ex/beta-1.38-1/sources/1.37.0/reg/ev3rt/0.2.0/Cargo.toml
[INFO] started frobbing ev3rt-0.2.0
[INFO] finished frobbing ev3rt-0.2.0
[INFO] frobbed toml for ev3rt-0.2.0 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/ev3rt/0.2.0/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[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 ev3rt-0.2.0 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-4/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/ev3rt/0.2.0:/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] 8b16d470db0b1dc188664c873efc7636cb065d2016b02974ee7d36352fcf4646
[INFO] running `"docker" "start" "-a" "8b16d470db0b1dc188664c873efc7636cb065d2016b02974ee7d36352fcf4646"`
[INFO] [stderr]    Compiling ev3rt v0.2.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.55s
[INFO] running `"docker" "inspect" "8b16d470db0b1dc188664c873efc7636cb065d2016b02974ee7d36352fcf4646"`
[INFO] running `"docker" "rm" "-f" "8b16d470db0b1dc188664c873efc7636cb065d2016b02974ee7d36352fcf4646"`
[INFO] [stdout] 8b16d470db0b1dc188664c873efc7636cb065d2016b02974ee7d36352fcf4646
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/ev3rt/0.2.0:/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] 987a1022740479c04d027c99a2405fa4faf50bfe15701663c60a8e3ccf5638b8
[INFO] running `"docker" "start" "-a" "987a1022740479c04d027c99a2405fa4faf50bfe15701663c60a8e3ccf5638b8"`
[INFO] [stderr]    Compiling ev3rt v0.2.0 (/opt/crater/workdir)
[INFO] [stderr] error[E0152]: duplicate lang item found: `panic_impl`.
[INFO] [stderr]   --> src/lib.rs:19:1
[INFO] [stderr]    |
[INFO] [stderr] 19 | / fn panic(_info: &PanicInfo) -> ! {
[INFO] [stderr] 20 | |     abort()
[INFO] [stderr] 21 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: first defined in crate `std`.
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0152`.
[INFO] [stderr] error: Could not compile `ev3rt`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "987a1022740479c04d027c99a2405fa4faf50bfe15701663c60a8e3ccf5638b8"`
[INFO] running `"docker" "rm" "-f" "987a1022740479c04d027c99a2405fa4faf50bfe15701663c60a8e3ccf5638b8"`
[INFO] [stdout] 987a1022740479c04d027c99a2405fa4faf50bfe15701663c60a8e3ccf5638b8