[INFO] crate pretty-trait 0.1.2 is already in cache
[INFO] extracting crate pretty-trait 0.1.2 into work/ex/beta-1.37-6/sources/1.36.0/reg/pretty-trait/0.1.2
[INFO] extracting crate pretty-trait 0.1.2 into work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/pretty-trait/0.1.2
[INFO] validating manifest of pretty-trait-0.1.2 on toolchain 1.36.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of pretty-trait-0.1.2 on toolchain beta-2019-07-23
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing pretty-trait-0.1.2
[INFO] finished frobbing pretty-trait-0.1.2
[INFO] frobbed toml for pretty-trait-0.1.2 written to work/ex/beta-1.37-6/sources/1.36.0/reg/pretty-trait/0.1.2/Cargo.toml
[INFO] started frobbing pretty-trait-0.1.2
[INFO] finished frobbing pretty-trait-0.1.2
[INFO] frobbed toml for pretty-trait-0.1.2 written to work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/pretty-trait/0.1.2/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing pretty-trait-0.1.2 against beta-2019-07-23 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-2/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/pretty-trait/0.1.2:/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-2019-07-23" "build" "--frozen"`
[INFO] [stdout] 873255178fb7643e930a4f86e06edecfe8b74aaf2d617e15cd89ab085eba964c
[INFO] running `"docker" "start" "-a" "873255178fb7643e930a4f86e06edecfe8b74aaf2d617e15cd89ab085eba964c"`
[INFO] [stderr]    Compiling pretty-trait v0.1.2 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:143:25
[INFO] [stderr]     |
[INFO] [stderr] 143 |     pub writer: &'a mut io::Write,
[INFO] [stderr]     |                         ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(bare_trait_objects)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:614:18
[INFO] [stderr]     |
[INFO] [stderr] 614 |     writer: &mut io::Write,
[INFO] [stderr]     |                  ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.52s
[INFO] running `"docker" "inspect" "873255178fb7643e930a4f86e06edecfe8b74aaf2d617e15cd89ab085eba964c"`
[INFO] running `"docker" "rm" "-f" "873255178fb7643e930a4f86e06edecfe8b74aaf2d617e15cd89ab085eba964c"`
[INFO] [stdout] 873255178fb7643e930a4f86e06edecfe8b74aaf2d617e15cd89ab085eba964c
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-2/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/pretty-trait/0.1.2:/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-2019-07-23" "test" "--frozen" "--no-run"`
[INFO] [stdout] 83e3d04b40da76bd4a073e7d997174fe3aa03ea473cc4a31e1eca78d2c081876
[INFO] running `"docker" "start" "-a" "83e3d04b40da76bd4a073e7d997174fe3aa03ea473cc4a31e1eca78d2c081876"`
[INFO] [stderr]    Compiling pretty-trait v0.1.2 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:143:25
[INFO] [stderr]     |
[INFO] [stderr] 143 |     pub writer: &'a mut io::Write,
[INFO] [stderr]     |                         ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(bare_trait_objects)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:614:18
[INFO] [stderr]     |
[INFO] [stderr] 614 |     writer: &mut io::Write,
[INFO] [stderr]     |                  ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.77s
[INFO] running `"docker" "inspect" "83e3d04b40da76bd4a073e7d997174fe3aa03ea473cc4a31e1eca78d2c081876"`
[INFO] running `"docker" "rm" "-f" "83e3d04b40da76bd4a073e7d997174fe3aa03ea473cc4a31e1eca78d2c081876"`
[INFO] [stdout] 83e3d04b40da76bd4a073e7d997174fe3aa03ea473cc4a31e1eca78d2c081876
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-2/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/pretty-trait/0.1.2:/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-2019-07-23" "test" "--frozen"`
[INFO] [stdout] 5b1da008c8ddb99d6a412f69028372ae412f10d09b18988465fea6a2249989dd
[INFO] running `"docker" "start" "-a" "5b1da008c8ddb99d6a412f69028372ae412f10d09b18988465fea6a2249989dd"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/crater/target/debug/deps/pretty_trait-4a2df748e8f515de
[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] [stderr]    Doc-tests pretty-trait
[INFO] [stdout] 
[INFO] [stdout] running 14 tests
[INFO] [stdout] test src/lib.rs - Option<T> (line 760) ... ok
[INFO] [stdout] test src/lib.rs - Newline (line 392) ... ok
[INFO] [stdout] test src/lib.rs - JoinExt::join (line 516) ... ok
[INFO] [stdout] test src/lib.rs - Option<T> (line 736) ... ok
[INFO] [stdout] test src/lib.rs - Group (line 243) ... ok
[INFO] [stdout] test src/lib.rs - Conditional (line 665) ... ok
[INFO] [stdout] test src/lib.rs - Indent (line 424) ... ok
[INFO] [stdout] test src/lib.rs - Seq (line 581) ... ok
[INFO] [stdout] test src/lib.rs -  (line 15) ... ok
[INFO] [stdout] test src/lib.rs - Sep (line 321) ... ok
[INFO] [stdout] test src/lib.rs - Sep (line 347) ... ok
[INFO] [stdout] test src/lib.rs - Seq (line 545) ... ok
[INFO] [stdout] test src/lib.rs - delimited (line 794) ... ok
[INFO] [stdout] test src/lib.rs - block (line 835) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 14 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "5b1da008c8ddb99d6a412f69028372ae412f10d09b18988465fea6a2249989dd"`
[INFO] running `"docker" "rm" "-f" "5b1da008c8ddb99d6a412f69028372ae412f10d09b18988465fea6a2249989dd"`
[INFO] [stdout] 5b1da008c8ddb99d6a412f69028372ae412f10d09b18988465fea6a2249989dd