[INFO] crate bitcoin-chain 0.3.1 is already in cache
[INFO] extracting crate bitcoin-chain 0.3.1 into work/ex/beta-1.37-6/sources/1.36.0/reg/bitcoin-chain/0.3.1
[INFO] extracting crate bitcoin-chain 0.3.1 into work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/bitcoin-chain/0.3.1
[INFO] validating manifest of bitcoin-chain-0.3.1 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 bitcoin-chain-0.3.1 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 bitcoin-chain-0.3.1
[INFO] finished frobbing bitcoin-chain-0.3.1
[INFO] frobbed toml for bitcoin-chain-0.3.1 written to work/ex/beta-1.37-6/sources/1.36.0/reg/bitcoin-chain/0.3.1/Cargo.toml
[INFO] started frobbing bitcoin-chain-0.3.1
[INFO] finished frobbing bitcoin-chain-0.3.1
[INFO] frobbed toml for bitcoin-chain-0.3.1 written to work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/bitcoin-chain/0.3.1/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 bitcoin-chain-0.3.1 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-5/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/bitcoin-chain/0.3.1:/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] c835e397a975263681cd0cc3b3b81f8bdb2354140dbc9871bad91465c22a3fa7
[INFO] running `"docker" "start" "-a" "c835e397a975263681cd0cc3b3b81f8bdb2354140dbc9871bad91465c22a3fa7"`
[INFO] [stderr]    Compiling bech32 v0.5.0
[INFO] [stderr]    Compiling rust-crypto v0.2.36
[INFO] [stderr]    Compiling secp256k1 v0.11.6
[INFO] [stderr]    Compiling bitcoin-bech32 v0.8.1
[INFO] [stderr]    Compiling bitcoin v0.15.1
[INFO] [stderr]    Compiling bitcoin-chain v0.3.1 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/blockchain.rs:73:19
[INFO] [stderr]    |
[INFO] [stderr] 73 |         (self as &fmt::Display).fmt(f)
[INFO] [stderr]    |                   ^^^^^^^^^^^^ help: use `dyn`: `dyn fmt::Display`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(bare_trait_objects)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 10.35s
[INFO] running `"docker" "inspect" "c835e397a975263681cd0cc3b3b81f8bdb2354140dbc9871bad91465c22a3fa7"`
[INFO] running `"docker" "rm" "-f" "c835e397a975263681cd0cc3b3b81f8bdb2354140dbc9871bad91465c22a3fa7"`
[INFO] [stdout] c835e397a975263681cd0cc3b3b81f8bdb2354140dbc9871bad91465c22a3fa7
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-5/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/bitcoin-chain/0.3.1:/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] 16932357c1bfbadd65aea0a787b0a7137870bea7837964a2ddb7549215ba9558
[INFO] running `"docker" "start" "-a" "16932357c1bfbadd65aea0a787b0a7137870bea7837964a2ddb7549215ba9558"`
[INFO] [stderr]    Compiling bitcoin-chain v0.3.1 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/blockchain.rs:73:19
[INFO] [stderr]    |
[INFO] [stderr] 73 |         (self as &fmt::Display).fmt(f)
[INFO] [stderr]    |                   ^^^^^^^^^^^^ help: use `dyn`: `dyn fmt::Display`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(bare_trait_objects)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.20s
[INFO] running `"docker" "inspect" "16932357c1bfbadd65aea0a787b0a7137870bea7837964a2ddb7549215ba9558"`
[INFO] running `"docker" "rm" "-f" "16932357c1bfbadd65aea0a787b0a7137870bea7837964a2ddb7549215ba9558"`
[INFO] [stdout] 16932357c1bfbadd65aea0a787b0a7137870bea7837964a2ddb7549215ba9558
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-5/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/bitcoin-chain/0.3.1:/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] c4cd81cefd4a4fa7268a8ac7ec5113b7d998770587c3054a26161a4b26404428
[INFO] running `"docker" "start" "-a" "c4cd81cefd4a4fa7268a8ac7ec5113b7d998770587c3054a26161a4b26404428"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/bitcoin_chain-8d9364d000b58d7d
[INFO] [stdout] 
[INFO] [stdout] running 7 tests
[INFO] [stdout] test patricia_tree::tests::patricia_single_insert_lookup_delete_test ... ok
[INFO] [stdout] test blockchain::tests::blockchain_serialize_test ... ok
[INFO] [stdout] test patricia_tree::tests::patricia_insert_substring_keys ... ok
[INFO] [stdout] test patricia_tree::tests::patricia_serialize_test ... ok
[INFO] [stdout] test patricia_tree::tests::patricia_iter_test ... ok
[INFO] [stdout] test patricia_tree::tests::patricia_mut_iter_test ... ok
[INFO] [stdout] test patricia_tree::tests::patricia_insert_lookup_delete_test ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 7 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests bitcoin_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" "c4cd81cefd4a4fa7268a8ac7ec5113b7d998770587c3054a26161a4b26404428"`
[INFO] running `"docker" "rm" "-f" "c4cd81cefd4a4fa7268a8ac7ec5113b7d998770587c3054a26161a4b26404428"`
[INFO] [stdout] c4cd81cefd4a4fa7268a8ac7ec5113b7d998770587c3054a26161a4b26404428