[INFO] updating cached repository stillinbeta/kitten
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/stillinbeta/kitten
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/stillinbeta/kitten" "work/ex/beta-1.38-1/sources/1.37.0/gh/stillinbeta/kitten"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/stillinbeta/kitten'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/stillinbeta/kitten" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/stillinbeta/kitten"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/stillinbeta/kitten'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 620793b3e9d99def99de60404d00bcb84b1df270
[INFO] sha for GitHub repo stillinbeta/kitten: 620793b3e9d99def99de60404d00bcb84b1df270
[INFO] validating manifest of stillinbeta/kitten 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 stillinbeta/kitten 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 stillinbeta/kitten
[INFO] finished frobbing stillinbeta/kitten
[INFO] frobbed toml for stillinbeta/kitten written to work/ex/beta-1.38-1/sources/1.37.0/gh/stillinbeta/kitten/Cargo.toml
[INFO] started frobbing stillinbeta/kitten
[INFO] finished frobbing stillinbeta/kitten
[INFO] frobbed toml for stillinbeta/kitten written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/stillinbeta/kitten/Cargo.toml
[INFO] crate stillinbeta/kitten already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing stillinbeta/kitten against beta-2019-08-13 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/stillinbeta/kitten:/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-2019-08-13" "build" "--frozen"`
[INFO] [stdout] e6ef5ddfbe32dc1e11f72b24061b88c906f7faf28543efdc235d81455d16fc67
[INFO] running `"docker" "start" "-a" "e6ef5ddfbe32dc1e11f72b24061b88c906f7faf28543efdc235d81455d16fc67"`
[INFO] [stderr]    Compiling kitten v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> src/lib.rs:8:47
[INFO] [stderr]   |
[INFO] [stderr] 8 |     pub fn run(cfg: Config) -> Result<(), Box<Error>> {
[INFO] [stderr]   |                                               ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.59s
[INFO] running `"docker" "inspect" "e6ef5ddfbe32dc1e11f72b24061b88c906f7faf28543efdc235d81455d16fc67"`
[INFO] running `"docker" "rm" "-f" "e6ef5ddfbe32dc1e11f72b24061b88c906f7faf28543efdc235d81455d16fc67"`
[INFO] [stdout] e6ef5ddfbe32dc1e11f72b24061b88c906f7faf28543efdc235d81455d16fc67
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/stillinbeta/kitten:/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-2019-08-13" "test" "--frozen" "--no-run"`
[INFO] [stdout] 7b7dc50d0bf870a06058c072982ad4c9672d1069d96d29373466131b121e31ac
[INFO] running `"docker" "start" "-a" "7b7dc50d0bf870a06058c072982ad4c9672d1069d96d29373466131b121e31ac"`
[INFO] [stderr]    Compiling kitten v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> src/lib.rs:8:47
[INFO] [stderr]   |
[INFO] [stderr] 8 |     pub fn run(cfg: Config) -> Result<(), Box<Error>> {
[INFO] [stderr]   |                                               ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.24s
[INFO] running `"docker" "inspect" "7b7dc50d0bf870a06058c072982ad4c9672d1069d96d29373466131b121e31ac"`
[INFO] running `"docker" "rm" "-f" "7b7dc50d0bf870a06058c072982ad4c9672d1069d96d29373466131b121e31ac"`
[INFO] [stdout] 7b7dc50d0bf870a06058c072982ad4c9672d1069d96d29373466131b121e31ac
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/stillinbeta/kitten:/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-2019-08-13" "test" "--frozen"`
[INFO] [stdout] f900f03e38360b73ed594bb00ccf41a911361c521fcdde5b90f27c90f243f533
[INFO] running `"docker" "start" "-a" "f900f03e38360b73ed594bb00ccf41a911361c521fcdde5b90f27c90f243f533"`
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stdout] running 2 tests
[INFO] [stderr]      Running /opt/crater/target/debug/deps/kitten-a52c44c2fd3127cc
[INFO] [stdout] test test::number_lines ... ok
[INFO] [stdout] test test::unnumbered_lines ... ok
[INFO] [stderr]      Running /opt/crater/target/debug/deps/kitten-e6aa40cf1918bd5f
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[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] [stderr]    Doc-tests kitten
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test src/lib.rs - kinds::Config::new (line 57) ... ok
[INFO] [stdout] test src/lib.rs - exec::maybe_number (line 24) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "f900f03e38360b73ed594bb00ccf41a911361c521fcdde5b90f27c90f243f533"`
[INFO] running `"docker" "rm" "-f" "f900f03e38360b73ed594bb00ccf41a911361c521fcdde5b90f27c90f243f533"`
[INFO] [stdout] f900f03e38360b73ed594bb00ccf41a911361c521fcdde5b90f27c90f243f533