[INFO] updating cached repository mlevesquedion/rcat
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/mlevesquedion/rcat
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/mlevesquedion/rcat" "work/ex/beta-1.38-1/sources/1.37.0/gh/mlevesquedion/rcat"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/mlevesquedion/rcat'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/mlevesquedion/rcat" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/mlevesquedion/rcat"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/mlevesquedion/rcat'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] dea140857c4b476f96296bb89455467db980816f
[INFO] sha for GitHub repo mlevesquedion/rcat: dea140857c4b476f96296bb89455467db980816f
[INFO] validating manifest of mlevesquedion/rcat 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 mlevesquedion/rcat 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 mlevesquedion/rcat
[INFO] finished frobbing mlevesquedion/rcat
[INFO] frobbed toml for mlevesquedion/rcat written to work/ex/beta-1.38-1/sources/1.37.0/gh/mlevesquedion/rcat/Cargo.toml
[INFO] started frobbing mlevesquedion/rcat
[INFO] finished frobbing mlevesquedion/rcat
[INFO] frobbed toml for mlevesquedion/rcat written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/mlevesquedion/rcat/Cargo.toml
[INFO] crate mlevesquedion/rcat 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 mlevesquedion/rcat 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-5/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/mlevesquedion/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" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] 7db36ed3fc3160001fcd9829a58a4db323b5b9cbdca916e14f2edd21d2455777
[INFO] running `"docker" "start" "-a" "7db36ed3fc3160001fcd9829a58a4db323b5b9cbdca916e14f2edd21d2455777"`
[INFO] [stderr]    Compiling rcat v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> src/lib.rs:5:56
[INFO] [stderr]   |
[INFO] [stderr] 5 | pub fn read_file(filename: &str) -> Result<String, 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 1.50s
[INFO] running `"docker" "inspect" "7db36ed3fc3160001fcd9829a58a4db323b5b9cbdca916e14f2edd21d2455777"`
[INFO] running `"docker" "rm" "-f" "7db36ed3fc3160001fcd9829a58a4db323b5b9cbdca916e14f2edd21d2455777"`
[INFO] [stdout] 7db36ed3fc3160001fcd9829a58a4db323b5b9cbdca916e14f2edd21d2455777
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-5/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/mlevesquedion/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" "+1.37.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] baeeeef754b78a99b5ecb1107d85dcf01ff015f001de03510112ccd1476f47a8
[INFO] running `"docker" "start" "-a" "baeeeef754b78a99b5ecb1107d85dcf01ff015f001de03510112ccd1476f47a8"`
[INFO] [stderr]    Compiling rcat v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> src/lib.rs:5:56
[INFO] [stderr]   |
[INFO] [stderr] 5 | pub fn read_file(filename: &str) -> Result<String, 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 1.07s
[INFO] running `"docker" "inspect" "baeeeef754b78a99b5ecb1107d85dcf01ff015f001de03510112ccd1476f47a8"`
[INFO] running `"docker" "rm" "-f" "baeeeef754b78a99b5ecb1107d85dcf01ff015f001de03510112ccd1476f47a8"`
[INFO] [stdout] baeeeef754b78a99b5ecb1107d85dcf01ff015f001de03510112ccd1476f47a8
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-5/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/mlevesquedion/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" "+1.37.0" "test" "--frozen"`
[INFO] [stdout] 8d8986944b8ec72af3d99869247da21644c88bca1dd189988964e4e2d8c3b7f6
[INFO] running `"docker" "start" "-a" "8d8986944b8ec72af3d99869247da21644c88bca1dd189988964e4e2d8c3b7f6"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/crater/target/debug/deps/rcat-c6c488cb6c34a744
[INFO] [stdout] running 2 tests
[INFO] [stdout] test it_fails_when_not_enough_args ... ok
[INFO] [stdout] test it_parses_args ... ok
[INFO] [stderr]      Running /opt/crater/target/debug/deps/rcat-da508f2cd151c3db
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests rcat
[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 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" "8d8986944b8ec72af3d99869247da21644c88bca1dd189988964e4e2d8c3b7f6"`
[INFO] running `"docker" "rm" "-f" "8d8986944b8ec72af3d99869247da21644c88bca1dd189988964e4e2d8c3b7f6"`
[INFO] [stdout] 8d8986944b8ec72af3d99869247da21644c88bca1dd189988964e4e2d8c3b7f6