[INFO] crate panic-ramdump 0.1.1 is already in cache
[INFO] extracting crate panic-ramdump 0.1.1 into work/ex/beta-1.38-1/sources/1.37.0/reg/panic-ramdump/0.1.1
[INFO] extracting crate panic-ramdump 0.1.1 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/panic-ramdump/0.1.1
[INFO] validating manifest of panic-ramdump-0.1.1 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 panic-ramdump-0.1.1 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 panic-ramdump-0.1.1
[INFO] finished frobbing panic-ramdump-0.1.1
[INFO] frobbed toml for panic-ramdump-0.1.1 written to work/ex/beta-1.38-1/sources/1.37.0/reg/panic-ramdump/0.1.1/Cargo.toml
[INFO] started frobbing panic-ramdump-0.1.1
[INFO] finished frobbing panic-ramdump-0.1.1
[INFO] frobbed toml for panic-ramdump-0.1.1 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/panic-ramdump/0.1.1/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 panic-ramdump-0.1.1 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-2/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/panic-ramdump/0.1.1:/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] 269a0d8ec7541076eddcd3a8e54d7dc646208769a4f08657e41c4d2547f035f3
[INFO] running `"docker" "start" "-a" "269a0d8ec7541076eddcd3a8e54d7dc646208769a4f08657e41c4d2547f035f3"`
[INFO] [stderr]    Compiling panic-ramdump v0.1.1 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.20s
[INFO] running `"docker" "inspect" "269a0d8ec7541076eddcd3a8e54d7dc646208769a4f08657e41c4d2547f035f3"`
[INFO] running `"docker" "rm" "-f" "269a0d8ec7541076eddcd3a8e54d7dc646208769a4f08657e41c4d2547f035f3"`
[INFO] [stdout] 269a0d8ec7541076eddcd3a8e54d7dc646208769a4f08657e41c4d2547f035f3
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/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/panic-ramdump/0.1.1:/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] f3037793f1ded6e09c12ed803be33ddb87af4a1b6aee1045a14c270fda9ca4e7
[INFO] running `"docker" "start" "-a" "f3037793f1ded6e09c12ed803be33ddb87af4a1b6aee1045a14c270fda9ca4e7"`
[INFO] [stderr]    Compiling panic-ramdump v0.1.1 (/opt/crater/workdir)
[INFO] [stderr] error[E0152]: duplicate lang item found: `panic_impl`.
[INFO] [stderr]   --> src/lib.rs:70:1
[INFO] [stderr]    |
[INFO] [stderr] 70 | / fn panic(info: &PanicInfo) -> ! {
[INFO] [stderr] 71 | |     interrupt::disable();
[INFO] [stderr] 72 | |
[INFO] [stderr] 73 | |     writeln!(Ram { offset: 0 }, "{}", info).ok();
[INFO] [stderr] 74 | |
[INFO] [stderr] 75 | |     loop {}
[INFO] [stderr] 76 | | }
[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 `panic-ramdump`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "f3037793f1ded6e09c12ed803be33ddb87af4a1b6aee1045a14c270fda9ca4e7"`
[INFO] running `"docker" "rm" "-f" "f3037793f1ded6e09c12ed803be33ddb87af4a1b6aee1045a14c270fda9ca4e7"`
[INFO] [stdout] f3037793f1ded6e09c12ed803be33ddb87af4a1b6aee1045a14c270fda9ca4e7