[INFO] crate fwdlist 0.3.0 is already in cache
[INFO] extracting crate fwdlist 0.3.0 into work/ex/beta-1.38-1/sources/1.37.0/reg/fwdlist/0.3.0
[INFO] extracting crate fwdlist 0.3.0 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/fwdlist/0.3.0
[INFO] validating manifest of fwdlist-0.3.0 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 fwdlist-0.3.0 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 fwdlist-0.3.0
[INFO] finished frobbing fwdlist-0.3.0
[INFO] frobbed toml for fwdlist-0.3.0 written to work/ex/beta-1.38-1/sources/1.37.0/reg/fwdlist/0.3.0/Cargo.toml
[INFO] started frobbing fwdlist-0.3.0
[INFO] finished frobbing fwdlist-0.3.0
[INFO] frobbed toml for fwdlist-0.3.0 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/fwdlist/0.3.0/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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] testing fwdlist-0.3.0 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-0/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/fwdlist/0.3.0:/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] e5380c4c0ccc84c6dc13f383ab809c43e47e796bf8182324a95514ebac41f221
[INFO] running `"docker" "start" "-a" "e5380c4c0ccc84c6dc13f383ab809c43e47e796bf8182324a95514ebac41f221"`
[INFO] [stderr]    Compiling fwdlist v0.3.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.37s
[INFO] running `"docker" "inspect" "e5380c4c0ccc84c6dc13f383ab809c43e47e796bf8182324a95514ebac41f221"`
[INFO] running `"docker" "rm" "-f" "e5380c4c0ccc84c6dc13f383ab809c43e47e796bf8182324a95514ebac41f221"`
[INFO] [stdout] e5380c4c0ccc84c6dc13f383ab809c43e47e796bf8182324a95514ebac41f221
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-0/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/fwdlist/0.3.0:/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] f56487b7698915643a3c0937aa475634cef7f71cc9f62c34abf4e47727e1bf1f
[INFO] running `"docker" "start" "-a" "f56487b7698915643a3c0937aa475634cef7f71cc9f62c34abf4e47727e1bf1f"`
[INFO] [stderr]    Compiling fwdlist v0.3.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.67s
[INFO] running `"docker" "inspect" "f56487b7698915643a3c0937aa475634cef7f71cc9f62c34abf4e47727e1bf1f"`
[INFO] running `"docker" "rm" "-f" "f56487b7698915643a3c0937aa475634cef7f71cc9f62c34abf4e47727e1bf1f"`
[INFO] [stdout] f56487b7698915643a3c0937aa475634cef7f71cc9f62c34abf4e47727e1bf1f
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-0/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/fwdlist/0.3.0:/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"`
[INFO] [stdout] 074a5777444a14f8fd51d6bfc5b8b92f568898a20a9f8e087d52f4bc6d4c8a4e
[INFO] running `"docker" "start" "-a" "074a5777444a14f8fd51d6bfc5b8b92f568898a20a9f8e087d52f4bc6d4c8a4e"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/fwdlist-df0a315a0c88494b
[INFO] [stdout] 
[INFO] [stdout] running 23 tests
[INFO] [stdout] test cursor::append ... ok
[INFO] [stdout] test cursor::checkpoint ... ok
[INFO] [stdout] test cursor::end ... ok
[INFO] [stdout] test cursor::insert ... ok
[INFO] [stdout] test cursor::last ... ok
[INFO] [stdout] test cursor::remove ... ok
[INFO] [stdout] test cursor::minimal ... ok
[INFO] [stdout] test cursor::nth ... ok
[INFO] [stdout] test cursor::merge_sort ... ok
[INFO] [stdout] test cursor::next ... ok
[INFO] [stdout] test cursor::split ... ok
[INFO] [stdout] test iter::ref_iter ... ok
[INFO] [stdout] test cursor::remove_n ... ok
[INFO] [stdout] test cursor::truncate ... ok
[INFO] [stdout] test intoiter::into_iter ... ok
[INFO] [stdout] test cursor::splice ... ok
[INFO] [stdout] test iter::ref_iter_clone ... ok
[INFO] [stdout] test itermut::extra::mutref_iter_advanced ... ok
[INFO] [stdout] test ops::core::basics ... ok
[INFO] [stdout] test ops::extra::append ... ok
[INFO] [stdout] test ops::extra::split_off ... ok
[INFO] [stdout] test itermut::mutref_iter ... ok
[INFO] [stdout] test ops::extra::split_off_panic ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 23 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests fwdlist
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test src/cursor.rs - cursor::Cursor::split (line 159) ... ignored
[INFO] [stdout] test src/lib.rs -  (line 8) ... ok
[INFO] [stdout] test src/lib.rs -  (line 31) ... ok
[INFO] [stdout] test src/lib.rs - Cursor (line 127) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 1 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "074a5777444a14f8fd51d6bfc5b8b92f568898a20a9f8e087d52f4bc6d4c8a4e"`
[INFO] running `"docker" "rm" "-f" "074a5777444a14f8fd51d6bfc5b8b92f568898a20a9f8e087d52f4bc6d4c8a4e"`
[INFO] [stdout] 074a5777444a14f8fd51d6bfc5b8b92f568898a20a9f8e087d52f4bc6d4c8a4e