[INFO] fetching crate dent 0.4.1...
[INFO] extracting crate dent 0.4.1 into work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/reg/dent/0.4.1
[INFO] extracting crate dent 0.4.1 into work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/reg/dent/0.4.1
[INFO] validating manifest of dent-0.4.1 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 dent-0.4.1 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 dent-0.4.1
[INFO] finished frobbing dent-0.4.1
[INFO] frobbed toml for dent-0.4.1 written to work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/reg/dent/0.4.1/Cargo.toml
[INFO] started frobbing dent-0.4.1
[INFO] finished frobbing dent-0.4.1
[INFO] frobbed toml for dent-0.4.1 written to work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/reg/dent/0.4.1/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c8865d8e195813ade6b84434ac9f8850e7112d1a-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e212b7d492c96d3837691ba29d32d5f468933fb8-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[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 stamp v0.1.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e212b7d492c96d3837691ba29d32d5f468933fb8-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] building dent-0.4.1 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/reg/dent/0.4.1:/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] f7064641089a669c770b4f9b8e27ba3e997f4a4d6bb40a35e85f3099536e6a30
[INFO] running `"docker" "start" "-a" "f7064641089a669c770b4f9b8e27ba3e997f4a4d6bb40a35e85f3099536e6a30"`
[INFO] [stderr]    Compiling stamp v0.1.0
[INFO] [stderr]    Compiling dent v0.4.1 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/bin.rs:111:73
[INFO] [stderr]     |
[INFO] [stderr] 111 | fn summarize_file(path: &str, lax_parsing: bool) -> Result<Summary, Box<error::Error>> {
[INFO] [stderr]     |                                                                         ^^^^^^^^^^^^ help: use `dyn`: `dyn error::Error`
[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/bin.rs:123:71
[INFO] [stderr]     |
[INFO] [stderr] 123 | fn read_data<R>(reader: R, lax_parsing: bool) -> Result<Vec<f64>, Box<error::Error>>
[INFO] [stderr]     |                                                                       ^^^^^^^^^^^^ help: use `dyn`: `dyn error::Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/bin.rs:143:62
[INFO] [stderr]     |
[INFO] [stderr] 143 | fn summarize_stdin(lax_parsing: bool) -> Result<Summary, Box<error::Error>> {
[INFO] [stderr]     |                                                              ^^^^^^^^^^^^ help: use `dyn`: `dyn error::Error`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.82s
[INFO] running `"docker" "inspect" "f7064641089a669c770b4f9b8e27ba3e997f4a4d6bb40a35e85f3099536e6a30"`
[INFO] running `"docker" "rm" "-f" "f7064641089a669c770b4f9b8e27ba3e997f4a4d6bb40a35e85f3099536e6a30"`
[INFO] [stdout] f7064641089a669c770b4f9b8e27ba3e997f4a4d6bb40a35e85f3099536e6a30
[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/reg/dent/0.4.1:/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] 0eca0ca1ad4c1178d8bc2c26dee217499ff8f1fb2064706a83c3f7acda05eb70
[INFO] running `"docker" "start" "-a" "0eca0ca1ad4c1178d8bc2c26dee217499ff8f1fb2064706a83c3f7acda05eb70"`
[INFO] [stderr]    Compiling dent v0.4.1 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/bin.rs:111:73
[INFO] [stderr]     |
[INFO] [stderr] 111 | fn summarize_file(path: &str, lax_parsing: bool) -> Result<Summary, Box<error::Error>> {
[INFO] [stderr]     |                                                                         ^^^^^^^^^^^^ help: use `dyn`: `dyn error::Error`
[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/bin.rs:123:71
[INFO] [stderr]     |
[INFO] [stderr] 123 | fn read_data<R>(reader: R, lax_parsing: bool) -> Result<Vec<f64>, Box<error::Error>>
[INFO] [stderr]     |                                                                       ^^^^^^^^^^^^ help: use `dyn`: `dyn error::Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/bin.rs:143:62
[INFO] [stderr]     |
[INFO] [stderr] 143 | fn summarize_stdin(lax_parsing: bool) -> Result<Summary, Box<error::Error>> {
[INFO] [stderr]     |                                                              ^^^^^^^^^^^^ help: use `dyn`: `dyn error::Error`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.21s
[INFO] running `"docker" "inspect" "0eca0ca1ad4c1178d8bc2c26dee217499ff8f1fb2064706a83c3f7acda05eb70"`
[INFO] running `"docker" "rm" "-f" "0eca0ca1ad4c1178d8bc2c26dee217499ff8f1fb2064706a83c3f7acda05eb70"`
[INFO] [stdout] 0eca0ca1ad4c1178d8bc2c26dee217499ff8f1fb2064706a83c3f7acda05eb70