[INFO] crate extdot-impl 0.2.0 is already in cache
[INFO] extracting crate extdot-impl 0.2.0 into work/ex/beta-1.38-1/sources/1.37.0/reg/extdot-impl/0.2.0
[INFO] extracting crate extdot-impl 0.2.0 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/extdot-impl/0.2.0
[INFO] validating manifest of extdot-impl-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 extdot-impl-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 extdot-impl-0.2.0
[INFO] finished frobbing extdot-impl-0.2.0
[INFO] frobbed toml for extdot-impl-0.2.0 written to work/ex/beta-1.38-1/sources/1.37.0/reg/extdot-impl/0.2.0/Cargo.toml
[INFO] started frobbing extdot-impl-0.2.0
[INFO] finished frobbing extdot-impl-0.2.0
[INFO] frobbed toml for extdot-impl-0.2.0 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/extdot-impl/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] [stderr]     Blocking waiting for file lock on package cache
[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] testing extdot-impl-0.2.0 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/reg/extdot-impl/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" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] e02b2aa7f2875b05931b9ecc5c7806c39be31076282d55fb56c0463346bc0728
[INFO] running `"docker" "start" "-a" "e02b2aa7f2875b05931b9ecc5c7806c39be31076282d55fb56c0463346bc0728"`
[INFO] [stderr]    Compiling extdot-impl v0.2.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lib.rs:37:29
[INFO] [stderr]    |
[INFO] [stderr] 37 |         let mut rv: Vec<Box<Iterator<Item = TokenTree>>> = vec![];
[INFO] [stderr]    |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = TokenTree>`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(bare_trait_objects)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.47s
[INFO] running `"docker" "inspect" "e02b2aa7f2875b05931b9ecc5c7806c39be31076282d55fb56c0463346bc0728"`
[INFO] running `"docker" "rm" "-f" "e02b2aa7f2875b05931b9ecc5c7806c39be31076282d55fb56c0463346bc0728"`
[INFO] [stdout] e02b2aa7f2875b05931b9ecc5c7806c39be31076282d55fb56c0463346bc0728
[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/reg/extdot-impl/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" "+1.37.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] b252923c71f5d058edd5bc576a3533f04267f609f8d892198d3a39072b11ee75
[INFO] running `"docker" "start" "-a" "b252923c71f5d058edd5bc576a3533f04267f609f8d892198d3a39072b11ee75"`
[INFO] [stderr]    Compiling extdot-impl v0.2.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lib.rs:37:29
[INFO] [stderr]    |
[INFO] [stderr] 37 |         let mut rv: Vec<Box<Iterator<Item = TokenTree>>> = vec![];
[INFO] [stderr]    |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = TokenTree>`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(bare_trait_objects)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.60s
[INFO] running `"docker" "inspect" "b252923c71f5d058edd5bc576a3533f04267f609f8d892198d3a39072b11ee75"`
[INFO] running `"docker" "rm" "-f" "b252923c71f5d058edd5bc576a3533f04267f609f8d892198d3a39072b11ee75"`
[INFO] [stdout] b252923c71f5d058edd5bc576a3533f04267f609f8d892198d3a39072b11ee75
[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/reg/extdot-impl/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" "+1.37.0" "test" "--frozen"`
[INFO] [stdout] ac7c151dbdcff733d820fc2142f0047fadc777b17a40040f5712f5547cf6b9c6
[INFO] running `"docker" "start" "-a" "ac7c151dbdcff733d820fc2142f0047fadc777b17a40040f5712f5547cf6b9c6"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/extdot_impl-d825fe8759442022
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test helpers::test_iterator_adaptor_identify_first_last ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests extdot-impl
[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" "ac7c151dbdcff733d820fc2142f0047fadc777b17a40040f5712f5547cf6b9c6"`
[INFO] running `"docker" "rm" "-f" "ac7c151dbdcff733d820fc2142f0047fadc777b17a40040f5712f5547cf6b9c6"`
[INFO] [stdout] ac7c151dbdcff733d820fc2142f0047fadc777b17a40040f5712f5547cf6b9c6