[INFO] crate pretty-trait 0.1.2 is already in cache
[INFO] extracting crate pretty-trait 0.1.2 into work/ex/beta-1.38-1/sources/1.37.0/reg/pretty-trait/0.1.2
[INFO] extracting crate pretty-trait 0.1.2 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/pretty-trait/0.1.2
[INFO] validating manifest of pretty-trait-0.1.2 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 pretty-trait-0.1.2 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 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-1.38-1/sources/1.37.0/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-1.38-1/sources/beta-2019-08-13/reg/pretty-trait/0.1.2/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 pretty-trait-0.1.2 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/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" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] 6aaff9a038579f5fe0bfc735626606a3f5455f15e51569aedce89f66c3dd9e8e
[INFO] running `"docker" "start" "-a" "6aaff9a038579f5fe0bfc735626606a3f5455f15e51569aedce89f66c3dd9e8e"`
[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 0.67s
[INFO] running `"docker" "inspect" "6aaff9a038579f5fe0bfc735626606a3f5455f15e51569aedce89f66c3dd9e8e"`
[INFO] running `"docker" "rm" "-f" "6aaff9a038579f5fe0bfc735626606a3f5455f15e51569aedce89f66c3dd9e8e"`
[INFO] [stdout] 6aaff9a038579f5fe0bfc735626606a3f5455f15e51569aedce89f66c3dd9e8e
[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/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" "+1.37.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 802d3396c7daa505269b754f2211589fe93f4fd1fcafc36d2b52ab4268c76383
[INFO] running `"docker" "start" "-a" "802d3396c7daa505269b754f2211589fe93f4fd1fcafc36d2b52ab4268c76383"`
[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" "802d3396c7daa505269b754f2211589fe93f4fd1fcafc36d2b52ab4268c76383"`
[INFO] running `"docker" "rm" "-f" "802d3396c7daa505269b754f2211589fe93f4fd1fcafc36d2b52ab4268c76383"`
[INFO] [stdout] 802d3396c7daa505269b754f2211589fe93f4fd1fcafc36d2b52ab4268c76383
[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/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" "+1.37.0" "test" "--frozen"`
[INFO] [stdout] 919e768323d7f4f64d84ff3511154b8a6fe8d945c13a4a31911b85729bc08af7
[INFO] running `"docker" "start" "-a" "919e768323d7f4f64d84ff3511154b8a6fe8d945c13a4a31911b85729bc08af7"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/pretty_trait-8e0c734fbbee62b5
[INFO] [stderr]    Doc-tests pretty-trait
[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] [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 - Indent (line 424) ... 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 - JoinExt::join (line 516) ... 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 - block (line 835) ... ok
[INFO] [stdout] test src/lib.rs - delimited (line 794) ... 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" "919e768323d7f4f64d84ff3511154b8a6fe8d945c13a4a31911b85729bc08af7"`
[INFO] running `"docker" "rm" "-f" "919e768323d7f4f64d84ff3511154b8a6fe8d945c13a4a31911b85729bc08af7"`
[INFO] [stdout] 919e768323d7f4f64d84ff3511154b8a6fe8d945c13a4a31911b85729bc08af7