[INFO] updating cached repository frewsxcv/rcat
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/frewsxcv/rcat
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/frewsxcv/rcat" "work/ex/beta-1.37-6/sources/1.36.0/gh/frewsxcv/rcat"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/frewsxcv/rcat'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/frewsxcv/rcat" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/frewsxcv/rcat"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/frewsxcv/rcat'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] b0b32e60342948f6d519a81f6de48bc9ce201e5e
[INFO] sha for GitHub repo frewsxcv/rcat: b0b32e60342948f6d519a81f6de48bc9ce201e5e
[INFO] validating manifest of frewsxcv/rcat 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 frewsxcv/rcat 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 frewsxcv/rcat
[INFO] finished frobbing frewsxcv/rcat
[INFO] frobbed toml for frewsxcv/rcat written to work/ex/beta-1.37-6/sources/1.36.0/gh/frewsxcv/rcat/Cargo.toml
[INFO] started frobbing frewsxcv/rcat
[INFO] finished frobbing frewsxcv/rcat
[INFO] frobbed toml for frewsxcv/rcat written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/frewsxcv/rcat/Cargo.toml
[INFO] crate frewsxcv/rcat already has a lockfile, it will not be regenerated
[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 frewsxcv/rcat 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-4/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/frewsxcv/rcat:/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] 7e8503c23185f651304ba6ba087ae5029bcbda273839dbeb57e4ff28311e3eaa
[INFO] running `"docker" "start" "-a" "7e8503c23185f651304ba6ba087ae5029bcbda273839dbeb57e4ff28311e3eaa"`
[INFO] [stderr]    Compiling textwrap v0.10.0
[INFO] [stderr]    Compiling clap v2.32.0
[INFO] [stderr]    Compiling rcat v2.0.4 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> main.rs:10:57
[INFO] [stderr]    |
[INFO] [stderr] 10 | fn open_file(path: &path::Path) -> Result<fs::File, 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]   --> main.rs:20:27
[INFO] [stderr]    |
[INFO] [stderr] 20 | fn print_error(error: Box<error::Error>) {
[INFO] [stderr]    |                           ^^^^^^^^^^^^ help: use `dyn`: `dyn error::Error`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 18.89s
[INFO] running `"docker" "inspect" "7e8503c23185f651304ba6ba087ae5029bcbda273839dbeb57e4ff28311e3eaa"`
[INFO] running `"docker" "rm" "-f" "7e8503c23185f651304ba6ba087ae5029bcbda273839dbeb57e4ff28311e3eaa"`
[INFO] [stdout] 7e8503c23185f651304ba6ba087ae5029bcbda273839dbeb57e4ff28311e3eaa
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-4/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/frewsxcv/rcat:/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] d5cbbd1bcf76f219852caef0681596fcadeb6c242252928815eb9dcb4ed5ed1c
[INFO] running `"docker" "start" "-a" "d5cbbd1bcf76f219852caef0681596fcadeb6c242252928815eb9dcb4ed5ed1c"`
[INFO] [stderr]    Compiling rcat v2.0.4 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> main.rs:10:57
[INFO] [stderr]    |
[INFO] [stderr] 10 | fn open_file(path: &path::Path) -> Result<fs::File, 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]   --> main.rs:20:27
[INFO] [stderr]    |
[INFO] [stderr] 20 | fn print_error(error: Box<error::Error>) {
[INFO] [stderr]    |                           ^^^^^^^^^^^^ help: use `dyn`: `dyn error::Error`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.81s
[INFO] running `"docker" "inspect" "d5cbbd1bcf76f219852caef0681596fcadeb6c242252928815eb9dcb4ed5ed1c"`
[INFO] running `"docker" "rm" "-f" "d5cbbd1bcf76f219852caef0681596fcadeb6c242252928815eb9dcb4ed5ed1c"`
[INFO] [stdout] d5cbbd1bcf76f219852caef0681596fcadeb6c242252928815eb9dcb4ed5ed1c
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-4/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/frewsxcv/rcat:/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] 98df35245cc6cbd9136698a4343d9af7512697de8d9b0e5a4094291824e6d5a3
[INFO] running `"docker" "start" "-a" "98df35245cc6cbd9136698a4343d9af7512697de8d9b0e5a4094291824e6d5a3"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/rcat-c546cbda256c90a6
[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" "98df35245cc6cbd9136698a4343d9af7512697de8d9b0e5a4094291824e6d5a3"`
[INFO] running `"docker" "rm" "-f" "98df35245cc6cbd9136698a4343d9af7512697de8d9b0e5a4094291824e6d5a3"`
[INFO] [stdout] 98df35245cc6cbd9136698a4343d9af7512697de8d9b0e5a4094291824e6d5a3