[INFO] crate rcat 2.0.4 is already in cache
[INFO] extracting crate rcat 2.0.4 into work/ex/beta-1.37-6/sources/1.36.0/reg/rcat/2.0.4
[INFO] extracting crate rcat 2.0.4 into work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/rcat/2.0.4
[INFO] validating manifest of rcat-2.0.4 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 rcat-2.0.4 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 rcat-2.0.4
[INFO] finished frobbing rcat-2.0.4
[INFO] frobbed toml for rcat-2.0.4 written to work/ex/beta-1.37-6/sources/1.36.0/reg/rcat/2.0.4/Cargo.toml
[INFO] started frobbing rcat-2.0.4
[INFO] finished frobbing rcat-2.0.4
[INFO] frobbed toml for rcat-2.0.4 written to work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/rcat/2.0.4/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[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 rcat-2.0.4 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-1/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/rcat/2.0.4:/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] 6bc232e07b0d7129e587166651bc4576689b38a86c1f33de71d6d1ea7f2bfa1a
[INFO] running `"docker" "start" "-a" "6bc232e07b0d7129e587166651bc4576689b38a86c1f33de71d6d1ea7f2bfa1a"`
[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 1.24s
[INFO] running `"docker" "inspect" "6bc232e07b0d7129e587166651bc4576689b38a86c1f33de71d6d1ea7f2bfa1a"`
[INFO] running `"docker" "rm" "-f" "6bc232e07b0d7129e587166651bc4576689b38a86c1f33de71d6d1ea7f2bfa1a"`
[INFO] [stdout] 6bc232e07b0d7129e587166651bc4576689b38a86c1f33de71d6d1ea7f2bfa1a
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-1/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/rcat/2.0.4:/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] e9263ce6958ff334d9377d4adcba61cf42df2863cfda7f7c1828a37b661e2624
[INFO] running `"docker" "start" "-a" "e9263ce6958ff334d9377d4adcba61cf42df2863cfda7f7c1828a37b661e2624"`
[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 0.54s
[INFO] running `"docker" "inspect" "e9263ce6958ff334d9377d4adcba61cf42df2863cfda7f7c1828a37b661e2624"`
[INFO] running `"docker" "rm" "-f" "e9263ce6958ff334d9377d4adcba61cf42df2863cfda7f7c1828a37b661e2624"`
[INFO] [stdout] e9263ce6958ff334d9377d4adcba61cf42df2863cfda7f7c1828a37b661e2624
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-1/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/rcat/2.0.4:/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] 0e0d23c9cbb04c027866699585ecc04352902cdd340c8a59f637c66f98c7713d
[INFO] running `"docker" "start" "-a" "0e0d23c9cbb04c027866699585ecc04352902cdd340c8a59f637c66f98c7713d"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/rcat-ac22461b98f08abc
[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" "0e0d23c9cbb04c027866699585ecc04352902cdd340c8a59f637c66f98c7713d"`
[INFO] running `"docker" "rm" "-f" "0e0d23c9cbb04c027866699585ecc04352902cdd340c8a59f637c66f98c7713d"`
[INFO] [stdout] 0e0d23c9cbb04c027866699585ecc04352902cdd340c8a59f637c66f98c7713d