[INFO] updating cached repository asymmetric/rusty-chain
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/asymmetric/rusty-chain
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/asymmetric/rusty-chain" "work/ex/beta-1.38-1/sources/1.37.0/gh/asymmetric/rusty-chain"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/asymmetric/rusty-chain'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/asymmetric/rusty-chain" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/asymmetric/rusty-chain"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/asymmetric/rusty-chain'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] ffb29dddedc1186fadd07f87ec3e8ae619c0d858
[INFO] sha for GitHub repo asymmetric/rusty-chain: ffb29dddedc1186fadd07f87ec3e8ae619c0d858
[INFO] validating manifest of asymmetric/rusty-chain 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 asymmetric/rusty-chain 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 asymmetric/rusty-chain
[INFO] finished frobbing asymmetric/rusty-chain
[INFO] frobbed toml for asymmetric/rusty-chain written to work/ex/beta-1.38-1/sources/1.37.0/gh/asymmetric/rusty-chain/Cargo.toml
[INFO] started frobbing asymmetric/rusty-chain
[INFO] finished frobbing asymmetric/rusty-chain
[INFO] frobbed toml for asymmetric/rusty-chain written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/asymmetric/rusty-chain/Cargo.toml
[INFO] crate asymmetric/rusty-chain 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 asymmetric/rusty-chain 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-6/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/asymmetric/rusty-chain:/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] 2ab5da36296e65471cfe87b036a9979bf83b244b3f5854f6408b959e9d422317
[INFO] running `"docker" "start" "-a" "2ab5da36296e65471cfe87b036a9979bf83b244b3f5854f6408b959e9d422317"`
[INFO] [stderr]    Compiling clap v2.29.4
[INFO] [stderr]    Compiling num-bigint v0.1.41
[INFO] [stderr]    Compiling rust-crypto v0.2.36
[INFO] [stderr]    Compiling chrono v0.4.0
[INFO] [stderr]    Compiling rusty-chain v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/error/mod.rs:27:32
[INFO] [stderr]    |
[INFO] [stderr] 27 |     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 27.89s
[INFO] running `"docker" "inspect" "2ab5da36296e65471cfe87b036a9979bf83b244b3f5854f6408b959e9d422317"`
[INFO] running `"docker" "rm" "-f" "2ab5da36296e65471cfe87b036a9979bf83b244b3f5854f6408b959e9d422317"`
[INFO] [stdout] 2ab5da36296e65471cfe87b036a9979bf83b244b3f5854f6408b959e9d422317
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/asymmetric/rusty-chain:/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] f5bbf6dc0338a6ed450a267550dd0df9ba566fad4b959be876b6711d441f0a6b
[INFO] running `"docker" "start" "-a" "f5bbf6dc0338a6ed450a267550dd0df9ba566fad4b959be876b6711d441f0a6b"`
[INFO] [stderr]    Compiling rusty-chain v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/error/mod.rs:27:32
[INFO] [stderr]    |
[INFO] [stderr] 27 |     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 1.50s
[INFO] running `"docker" "inspect" "f5bbf6dc0338a6ed450a267550dd0df9ba566fad4b959be876b6711d441f0a6b"`
[INFO] running `"docker" "rm" "-f" "f5bbf6dc0338a6ed450a267550dd0df9ba566fad4b959be876b6711d441f0a6b"`
[INFO] [stdout] f5bbf6dc0338a6ed450a267550dd0df9ba566fad4b959be876b6711d441f0a6b
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/asymmetric/rusty-chain:/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] 7b138d0134ac55a08a3b423289e62d36ba14aaba1c226baa2c2cf31b59a35b00
[INFO] running `"docker" "start" "-a" "7b138d0134ac55a08a3b423289e62d36ba14aaba1c226baa2c2cf31b59a35b00"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/rusty_chain-08b6b1f42275b4ca
[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] [stderr]      Running /opt/crater/target/debug/deps/rusty_chain-ea4ac3e491f96aca
[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] [stderr]    Doc-tests rusty-chain
[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" "7b138d0134ac55a08a3b423289e62d36ba14aaba1c226baa2c2cf31b59a35b00"`
[INFO] running `"docker" "rm" "-f" "7b138d0134ac55a08a3b423289e62d36ba14aaba1c226baa2c2cf31b59a35b00"`
[INFO] [stdout] 7b138d0134ac55a08a3b423289e62d36ba14aaba1c226baa2c2cf31b59a35b00