[INFO] crate rustdt_util 0.2.3 is already in cache
[INFO] extracting crate rustdt_util 0.2.3 into work/ex/beta-1.38-1/sources/1.37.0/reg/rustdt_util/0.2.3
[INFO] extracting crate rustdt_util 0.2.3 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/rustdt_util/0.2.3
[INFO] validating manifest of rustdt_util-0.2.3 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 rustdt_util-0.2.3 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 rustdt_util-0.2.3
[INFO] finished frobbing rustdt_util-0.2.3
[INFO] frobbed toml for rustdt_util-0.2.3 written to work/ex/beta-1.38-1/sources/1.37.0/reg/rustdt_util/0.2.3/Cargo.toml
[INFO] started frobbing rustdt_util-0.2.3
[INFO] finished frobbing rustdt_util-0.2.3
[INFO] frobbed toml for rustdt_util-0.2.3 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/rustdt_util/0.2.3/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 rustdt_util-0.2.3 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-2/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/rustdt_util/0.2.3:/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] 87f9efb591ee34db17d16a9f58e6c6f8e24612728edef748db8731813fdae451
[INFO] running `"docker" "start" "-a" "87f9efb591ee34db17d16a9f58e6c6f8e24612728edef748db8731813fdae451"`
[INFO] [stderr]    Compiling rustdt_util v0.2.3 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/core.rs:18:23
[INFO] [stderr]    |
[INFO] [stderr] 18 | pub type GError = Box<Error>;
[INFO] [stderr]    |                       ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(bare_trait_objects)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.54s
[INFO] running `"docker" "inspect" "87f9efb591ee34db17d16a9f58e6c6f8e24612728edef748db8731813fdae451"`
[INFO] running `"docker" "rm" "-f" "87f9efb591ee34db17d16a9f58e6c6f8e24612728edef748db8731813fdae451"`
[INFO] [stdout] 87f9efb591ee34db17d16a9f58e6c6f8e24612728edef748db8731813fdae451
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/rustdt_util/0.2.3:/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] 2465901a6bbcd80843797549dcbf5c078b837e1bc1e7671072e433e993a831b9
[INFO] running `"docker" "start" "-a" "2465901a6bbcd80843797549dcbf5c078b837e1bc1e7671072e433e993a831b9"`
[INFO] [stderr]    Compiling rustdt_util v0.2.3 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/core.rs:18:23
[INFO] [stderr]    |
[INFO] [stderr] 18 | pub type GError = Box<Error>;
[INFO] [stderr]    |                       ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(bare_trait_objects)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.89s
[INFO] running `"docker" "inspect" "2465901a6bbcd80843797549dcbf5c078b837e1bc1e7671072e433e993a831b9"`
[INFO] running `"docker" "rm" "-f" "2465901a6bbcd80843797549dcbf5c078b837e1bc1e7671072e433e993a831b9"`
[INFO] [stdout] 2465901a6bbcd80843797549dcbf5c078b837e1bc1e7671072e433e993a831b9
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/rustdt_util/0.2.3:/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] 7900272ce84c93137d0f62a4f54bdce15deb38fa250d0552067b3af84dcafb10
[INFO] running `"docker" "start" "-a" "7900272ce84c93137d0f62a4f54bdce15deb38fa250d0552067b3af84dcafb10"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/rustdt_util-cc1dcecb531923db
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test string::test_writeNTimes ... ok
[INFO] [stderr]    Doc-tests rustdt_util
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[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" "7900272ce84c93137d0f62a4f54bdce15deb38fa250d0552067b3af84dcafb10"`
[INFO] running `"docker" "rm" "-f" "7900272ce84c93137d0f62a4f54bdce15deb38fa250d0552067b3af84dcafb10"`
[INFO] [stdout] 7900272ce84c93137d0f62a4f54bdce15deb38fa250d0552067b3af84dcafb10