[INFO] crate yeast 0.20.0 is already in cache
[INFO] extracting crate yeast 0.20.0 into work/ex/beta-1.38-1/sources/1.37.0/reg/yeast/0.20.0
[INFO] extracting crate yeast 0.20.0 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/yeast/0.20.0
[INFO] validating manifest of yeast-0.20.0 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 yeast-0.20.0 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 yeast-0.20.0
[INFO] finished frobbing yeast-0.20.0
[INFO] frobbed toml for yeast-0.20.0 written to work/ex/beta-1.38-1/sources/1.37.0/reg/yeast/0.20.0/Cargo.toml
[INFO] started frobbing yeast-0.20.0
[INFO] finished frobbing yeast-0.20.0
[INFO] frobbed toml for yeast-0.20.0 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/yeast/0.20.0/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 yeast-0.20.0 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-1/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/yeast/0.20.0:/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] 222c141e0cd149b2ce6b8f340e0eed9434add7d0c33e468447ec5131677969c2
[INFO] running `"docker" "start" "-a" "222c141e0cd149b2ce6b8f340e0eed9434add7d0c33e468447ec5131677969c2"`
[INFO] [stderr]    Compiling yeast v0.20.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/main.rs:69:26
[INFO] [stderr]    |
[INFO] [stderr] 69 | fn readline(reader: &mut BufRead, line: &str, args: &[String]) -> String {
[INFO] [stderr]    |                          ^^^^^^^ help: use `dyn`: `dyn BufRead`
[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]    --> src/main.rs:105:18
[INFO] [stderr]     |
[INFO] [stderr] 105 |     reader: &mut BufRead,
[INFO] [stderr]     |                  ^^^^^^^ help: use `dyn`: `dyn BufRead`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.14s
[INFO] running `"docker" "inspect" "222c141e0cd149b2ce6b8f340e0eed9434add7d0c33e468447ec5131677969c2"`
[INFO] running `"docker" "rm" "-f" "222c141e0cd149b2ce6b8f340e0eed9434add7d0c33e468447ec5131677969c2"`
[INFO] [stdout] 222c141e0cd149b2ce6b8f340e0eed9434add7d0c33e468447ec5131677969c2
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/yeast/0.20.0:/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] 71512a1e376d3b6455ed7e7fe278f3ef84fc51e52324cede07b856a2779c1588
[INFO] running `"docker" "start" "-a" "71512a1e376d3b6455ed7e7fe278f3ef84fc51e52324cede07b856a2779c1588"`
[INFO] [stderr]    Compiling yeast v0.20.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/main.rs:69:26
[INFO] [stderr]    |
[INFO] [stderr] 69 | fn readline(reader: &mut BufRead, line: &str, args: &[String]) -> String {
[INFO] [stderr]    |                          ^^^^^^^ help: use `dyn`: `dyn BufRead`
[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]    --> src/main.rs:105:18
[INFO] [stderr]     |
[INFO] [stderr] 105 |     reader: &mut BufRead,
[INFO] [stderr]     |                  ^^^^^^^ help: use `dyn`: `dyn BufRead`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.46s
[INFO] running `"docker" "inspect" "71512a1e376d3b6455ed7e7fe278f3ef84fc51e52324cede07b856a2779c1588"`
[INFO] running `"docker" "rm" "-f" "71512a1e376d3b6455ed7e7fe278f3ef84fc51e52324cede07b856a2779c1588"`
[INFO] [stdout] 71512a1e376d3b6455ed7e7fe278f3ef84fc51e52324cede07b856a2779c1588
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/yeast/0.20.0:/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] 843ca33507e5dd960e3136f12d38a96a66e4700e74a93ce42ec4ae375d4dfb29
[INFO] running `"docker" "start" "-a" "843ca33507e5dd960e3136f12d38a96a66e4700e74a93ce42ec4ae375d4dfb29"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/yeast-4f2feb6504d04d18
[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" "843ca33507e5dd960e3136f12d38a96a66e4700e74a93ce42ec4ae375d4dfb29"`
[INFO] running `"docker" "rm" "-f" "843ca33507e5dd960e3136f12d38a96a66e4700e74a93ce42ec4ae375d4dfb29"`
[INFO] [stdout] 843ca33507e5dd960e3136f12d38a96a66e4700e74a93ce42ec4ae375d4dfb29