[INFO] cloning repository volks73/groom
[INFO] running `"git" "clone" "--bare" "git://github.com/volks73/groom.git" "work/cache/sources/gh/volks73/groom"`
[INFO] [stderr] Cloning into bare repository 'work/cache/sources/gh/volks73/groom'...
[INFO] running `"git" "clone" "work/cache/sources/gh/volks73/groom" "work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/gh/volks73/groom"`
[INFO] [stderr] Cloning into 'work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/gh/volks73/groom'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/volks73/groom" "work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/gh/volks73/groom"`
[INFO] [stderr] Cloning into 'work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/gh/volks73/groom'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] f495906323a9804f4d37e06abb43745c3b0547d3
[INFO] sha for GitHub repo volks73/groom: f495906323a9804f4d37e06abb43745c3b0547d3
[INFO] validating manifest of volks73/groom on toolchain master#c8865d8e195813ade6b84434ac9f8850e7112d1a
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c8865d8e195813ade6b84434ac9f8850e7112d1a-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of volks73/groom on toolchain try#e212b7d492c96d3837691ba29d32d5f468933fb8
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e212b7d492c96d3837691ba29d32d5f468933fb8-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing volks73/groom
[INFO] finished frobbing volks73/groom
[INFO] frobbed toml for volks73/groom written to work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/gh/volks73/groom/Cargo.toml
[INFO] started frobbing volks73/groom
[INFO] finished frobbing volks73/groom
[INFO] frobbed toml for volks73/groom written to work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/gh/volks73/groom/Cargo.toml
[INFO] crate volks73/groom already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c8865d8e195813ade6b84434ac9f8850e7112d1a-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded loggerv v0.6.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e212b7d492c96d3837691ba29d32d5f468933fb8-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] building volks73/groom against try#e212b7d492c96d3837691ba29d32d5f468933fb8 for pr-61629
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-61629/worker-4/try#e212b7d492c96d3837691ba29d32d5f468933fb8:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/gh/volks73/groom:/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=forbid" "-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" "+e212b7d492c96d3837691ba29d32d5f468933fb8-alt" "build" "--frozen"`
[INFO] [stdout] 25087b0e0b31dd7d9aa305e965ffecd50caa9d3b699b7f6135d748d465b9ff11
[INFO] running `"docker" "start" "-a" "25087b0e0b31dd7d9aa305e965ffecd50caa9d3b699b7f6135d748d465b9ff11"`
[INFO] [stderr]    Compiling num-traits v0.2.0
[INFO] [stderr]    Compiling Groom v0.1.1 (/opt/crater/workdir)
[INFO] [stderr]    Compiling clap v2.29.4
[INFO] [stderr]    Compiling mustache v0.9.0
[INFO] [stderr]    Compiling loggerv v0.6.0
[INFO] [stderr]    Compiling num-traits v0.1.43
[INFO] [stderr]    Compiling serde_yaml v0.7.3
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/groom.rs:75:36
[INFO] [stderr]    |
[INFO] [stderr] 75 |         let mut output_writer: Box<Write> = if let Some(output) = self.output {
[INFO] [stderr]    |                                    ^^^^^ help: use `dyn`: `dyn 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:147:32
[INFO] [stderr]     |
[INFO] [stderr] 147 |     fn cause(&self) -> Option<&StdError> {
[INFO] [stderr]     |                                ^^^^^^^^ help: use `dyn`: `dyn StdError`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 29.24s
[INFO] running `"docker" "inspect" "25087b0e0b31dd7d9aa305e965ffecd50caa9d3b699b7f6135d748d465b9ff11"`
[INFO] running `"docker" "rm" "-f" "25087b0e0b31dd7d9aa305e965ffecd50caa9d3b699b7f6135d748d465b9ff11"`
[INFO] [stdout] 25087b0e0b31dd7d9aa305e965ffecd50caa9d3b699b7f6135d748d465b9ff11
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-61629/worker-4/try#e212b7d492c96d3837691ba29d32d5f468933fb8:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/gh/volks73/groom:/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=forbid" "-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" "+e212b7d492c96d3837691ba29d32d5f468933fb8-alt" "test" "--frozen" "--no-run"`
[INFO] [stdout] cef9389ee3595d0b45aad185cdfe9062c5939f5d41dedf6c694dce5d6a50cd6a
[INFO] running `"docker" "start" "-a" "cef9389ee3595d0b45aad185cdfe9062c5939f5d41dedf6c694dce5d6a50cd6a"`
[INFO] [stderr]    Compiling Groom v0.1.1 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/groom.rs:75:36
[INFO] [stderr]    |
[INFO] [stderr] 75 |         let mut output_writer: Box<Write> = if let Some(output) = self.output {
[INFO] [stderr]    |                                    ^^^^^ help: use `dyn`: `dyn 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:147:32
[INFO] [stderr]     |
[INFO] [stderr] 147 |     fn cause(&self) -> Option<&StdError> {
[INFO] [stderr]     |                                ^^^^^^^^ help: use `dyn`: `dyn StdError`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.11s
[INFO] running `"docker" "inspect" "cef9389ee3595d0b45aad185cdfe9062c5939f5d41dedf6c694dce5d6a50cd6a"`
[INFO] running `"docker" "rm" "-f" "cef9389ee3595d0b45aad185cdfe9062c5939f5d41dedf6c694dce5d6a50cd6a"`
[INFO] [stdout] cef9389ee3595d0b45aad185cdfe9062c5939f5d41dedf6c694dce5d6a50cd6a