[INFO] crate md5sum 0.1.0 is already in cache
[INFO] extracting crate md5sum 0.1.0 into work/ex/beta-1.38-1/sources/1.37.0/reg/md5sum/0.1.0
[INFO] extracting crate md5sum 0.1.0 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/md5sum/0.1.0
[INFO] validating manifest of md5sum-0.1.0 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 md5sum-0.1.0 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 md5sum-0.1.0
[INFO] finished frobbing md5sum-0.1.0
[INFO] frobbed toml for md5sum-0.1.0 written to work/ex/beta-1.38-1/sources/1.37.0/reg/md5sum/0.1.0/Cargo.toml
[INFO] started frobbing md5sum-0.1.0
[INFO] finished frobbing md5sum-0.1.0
[INFO] frobbed toml for md5sum-0.1.0 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/md5sum/0.1.0/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 md5sum-0.1.0 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-1/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/md5sum/0.1.0:/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" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] a1c4ddc63760b7141a648b97ccdd58ad41ddab0c141af666a8150876f0b2e29b
[INFO] running `"docker" "start" "-a" "a1c4ddc63760b7141a648b97ccdd58ad41ddab0c141af666a8150876f0b2e29b"`
[INFO] [stderr]    Compiling md5sum v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:227:25
[INFO] [stderr]     |
[INFO] [stderr] 227 |     where F: FnMut(&mut BufRead) -> io::Result<T>
[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:233:33
[INFO] [stderr]     |
[INFO] [stderr] 233 |             Box::new($e) as Box<BufRead>
[INFO] [stderr]     |                                 ^^^^^^^ help: use `dyn`: `dyn BufRead`
[INFO] [stderr] ...
[INFO] [stderr] 239 |             boxed_bufread!(stdin.lock())
[INFO] [stderr]     |             ---------------------------- in this macro invocation
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:233:33
[INFO] [stderr]     |
[INFO] [stderr] 233 |             Box::new($e) as Box<BufRead>
[INFO] [stderr]     |                                 ^^^^^^^ help: use `dyn`: `dyn BufRead`
[INFO] [stderr] ...
[INFO] [stderr] 242 |             boxed_bufread!(file)
[INFO] [stderr]     |             -------------------- in this macro invocation
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.54s
[INFO] running `"docker" "inspect" "a1c4ddc63760b7141a648b97ccdd58ad41ddab0c141af666a8150876f0b2e29b"`
[INFO] running `"docker" "rm" "-f" "a1c4ddc63760b7141a648b97ccdd58ad41ddab0c141af666a8150876f0b2e29b"`
[INFO] [stdout] a1c4ddc63760b7141a648b97ccdd58ad41ddab0c141af666a8150876f0b2e29b
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/md5sum/0.1.0:/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" "+1.37.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 74f96c16fb661f0b91c83a22c2ccc31c027811814a5c9892d4510addaf9f6377
[INFO] running `"docker" "start" "-a" "74f96c16fb661f0b91c83a22c2ccc31c027811814a5c9892d4510addaf9f6377"`
[INFO] [stderr]    Compiling md5sum v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:227:25
[INFO] [stderr]     |
[INFO] [stderr] 227 |     where F: FnMut(&mut BufRead) -> io::Result<T>
[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:233:33
[INFO] [stderr]     |
[INFO] [stderr] 233 |             Box::new($e) as Box<BufRead>
[INFO] [stderr]     |                                 ^^^^^^^ help: use `dyn`: `dyn BufRead`
[INFO] [stderr] ...
[INFO] [stderr] 239 |             boxed_bufread!(stdin.lock())
[INFO] [stderr]     |             ---------------------------- in this macro invocation
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:233:33
[INFO] [stderr]     |
[INFO] [stderr] 233 |             Box::new($e) as Box<BufRead>
[INFO] [stderr]     |                                 ^^^^^^^ help: use `dyn`: `dyn BufRead`
[INFO] [stderr] ...
[INFO] [stderr] 242 |             boxed_bufread!(file)
[INFO] [stderr]     |             -------------------- in this macro invocation
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.41s
[INFO] running `"docker" "inspect" "74f96c16fb661f0b91c83a22c2ccc31c027811814a5c9892d4510addaf9f6377"`
[INFO] running `"docker" "rm" "-f" "74f96c16fb661f0b91c83a22c2ccc31c027811814a5c9892d4510addaf9f6377"`
[INFO] [stdout] 74f96c16fb661f0b91c83a22c2ccc31c027811814a5c9892d4510addaf9f6377
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/md5sum/0.1.0:/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" "+1.37.0" "test" "--frozen"`
[INFO] [stdout] a005e1615d1c2d6754e1d98d524d853b7828d63fa70a15719e3524994730a167
[INFO] running `"docker" "start" "-a" "a005e1615d1c2d6754e1d98d524d853b7828d63fa70a15719e3524994730a167"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/md5sum-0ed1ecb09366bc97
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test tests::it_should_validate_checksum_lines ... 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" "a005e1615d1c2d6754e1d98d524d853b7828d63fa70a15719e3524994730a167"`
[INFO] running `"docker" "rm" "-f" "a005e1615d1c2d6754e1d98d524d853b7828d63fa70a15719e3524994730a167"`
[INFO] [stdout] a005e1615d1c2d6754e1d98d524d853b7828d63fa70a15719e3524994730a167