[INFO] crate fst-regex 0.2.2 is already in cache
[INFO] extracting crate fst-regex 0.2.2 into work/ex/beta-1.38-1/sources/1.37.0/reg/fst-regex/0.2.2
[INFO] extracting crate fst-regex 0.2.2 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/fst-regex/0.2.2
[INFO] validating manifest of fst-regex-0.2.2 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 fst-regex-0.2.2 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 fst-regex-0.2.2
[INFO] finished frobbing fst-regex-0.2.2
[INFO] frobbed toml for fst-regex-0.2.2 written to work/ex/beta-1.38-1/sources/1.37.0/reg/fst-regex/0.2.2/Cargo.toml
[INFO] started frobbing fst-regex-0.2.2
[INFO] finished frobbing fst-regex-0.2.2
[INFO] frobbed toml for fst-regex-0.2.2 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/fst-regex/0.2.2/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[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 fst-regex-0.2.2 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-0/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/fst-regex/0.2.2:/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] 997761d88575dd29a2358297c8bfacfd5a14e3a22ba22a5ac9fac9fcada55d5f
[INFO] running `"docker" "start" "-a" "997761d88575dd29a2358297c8bfacfd5a14e3a22ba22a5ac9fac9fcada55d5f"`
[INFO] [stderr]    Compiling fst v0.3.5
[INFO] [stderr]    Compiling fst-regex v0.2.2 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/error.rs:87:32
[INFO] [stderr]    |
[INFO] [stderr] 87 |     fn cause(&self) -> Option<&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]     Finished dev [unoptimized + debuginfo] target(s) in 2.87s
[INFO] running `"docker" "inspect" "997761d88575dd29a2358297c8bfacfd5a14e3a22ba22a5ac9fac9fcada55d5f"`
[INFO] running `"docker" "rm" "-f" "997761d88575dd29a2358297c8bfacfd5a14e3a22ba22a5ac9fac9fcada55d5f"`
[INFO] [stdout] 997761d88575dd29a2358297c8bfacfd5a14e3a22ba22a5ac9fac9fcada55d5f
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-0/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/fst-regex/0.2.2:/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] be33b3a03ee8e3e70cae51e33ec2b86500d5e70516093f7ee50196018673447a
[INFO] running `"docker" "start" "-a" "be33b3a03ee8e3e70cae51e33ec2b86500d5e70516093f7ee50196018673447a"`
[INFO] [stderr]    Compiling fst-regex v0.2.2 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/error.rs:87:32
[INFO] [stderr]    |
[INFO] [stderr] 87 |     fn cause(&self) -> Option<&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]     Finished dev [unoptimized + debuginfo] target(s) in 0.90s
[INFO] running `"docker" "inspect" "be33b3a03ee8e3e70cae51e33ec2b86500d5e70516093f7ee50196018673447a"`
[INFO] running `"docker" "rm" "-f" "be33b3a03ee8e3e70cae51e33ec2b86500d5e70516093f7ee50196018673447a"`
[INFO] [stdout] be33b3a03ee8e3e70cae51e33ec2b86500d5e70516093f7ee50196018673447a
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-0/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/fst-regex/0.2.2:/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] 0a909e689b0c1825bf90c63693209ab7bd5dfaceee8edae92bd0a5d4b6efdfae
[INFO] running `"docker" "start" "-a" "0a909e689b0c1825bf90c63693209ab7bd5dfaceee8edae92bd0a5d4b6efdfae"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/fst_regex-eca043775f3eb811
[INFO] [stderr]    Doc-tests fst-regex
[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] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - Regex (line 64) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "0a909e689b0c1825bf90c63693209ab7bd5dfaceee8edae92bd0a5d4b6efdfae"`
[INFO] running `"docker" "rm" "-f" "0a909e689b0c1825bf90c63693209ab7bd5dfaceee8edae92bd0a5d4b6efdfae"`
[INFO] [stdout] 0a909e689b0c1825bf90c63693209ab7bd5dfaceee8edae92bd0a5d4b6efdfae