[INFO] cloning repository https://github.com/kccqzy/SimpleBlockchain-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/kccqzy/SimpleBlockchain-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkccqzy%2FSimpleBlockchain-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkccqzy%2FSimpleBlockchain-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a91e1b4b476af0e7d3047be4893a8c63d0a88377
[INFO] testing kccqzy/SimpleBlockchain-rs against try#015dbcea68b7642e2acc268b5c8f3e9086fc02ff for pr-102570
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkccqzy%2FSimpleBlockchain-rs" "/workspace/builds/worker-0/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/kccqzy/SimpleBlockchain-rs on toolchain 015dbcea68b7642e2acc268b5c8f3e9086fc02ff
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+015dbcea68b7642e2acc268b5c8f3e9086fc02ff" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/kccqzy/SimpleBlockchain-rs
[INFO] finished tweaking git repo https://github.com/kccqzy/SimpleBlockchain-rs
[INFO] tweaked toml for git repo https://github.com/kccqzy/SimpleBlockchain-rs written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/kccqzy/SimpleBlockchain-rs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+015dbcea68b7642e2acc268b5c8f3e9086fc02ff" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:bb5b0feb4f87116a4ea905b7ff5bf5b85913db05e9f0fbc1abdd3168928d9075" "/opt/rustwide/cargo-home/bin/cargo" "+015dbcea68b7642e2acc268b5c8f3e9086fc02ff" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6cb8dad287b4ef2eabcfaccb7e6936206d5b8fbee103558c38e40829f2cbb366
[INFO] running `Command { std: "docker" "start" "-a" "6cb8dad287b4ef2eabcfaccb7e6936206d5b8fbee103558c38e40829f2cbb366", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6cb8dad287b4ef2eabcfaccb7e6936206d5b8fbee103558c38e40829f2cbb366", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6cb8dad287b4ef2eabcfaccb7e6936206d5b8fbee103558c38e40829f2cbb366", kill_on_drop: false }`
[INFO] [stdout] 6cb8dad287b4ef2eabcfaccb7e6936206d5b8fbee103558c38e40829f2cbb366
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:bb5b0feb4f87116a4ea905b7ff5bf5b85913db05e9f0fbc1abdd3168928d9075" "/opt/rustwide/cargo-home/bin/cargo" "+015dbcea68b7642e2acc268b5c8f3e9086fc02ff" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0605aac40108d1d28a3de8cee84d65fdf6cde1eaffd7304e71da8dcd909d613e
[INFO] running `Command { std: "docker" "start" "-a" "0605aac40108d1d28a3de8cee84d65fdf6cde1eaffd7304e71da8dcd909d613e", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.8
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling cc v1.0.50
[INFO] [stderr]    Compiling libc v0.2.69
[INFO] [stderr]    Compiling syn v1.0.13
[INFO] [stderr]    Compiling pkg-config v0.3.17
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling autocfg v0.1.7
[INFO] [stderr]    Compiling failure_derive v0.1.6
[INFO] [stderr]    Compiling rustc-demangle v0.1.16
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling serde v1.0.104
[INFO] [stderr]    Compiling memchr v2.3.0
[INFO] [stderr]    Compiling byteorder v1.3.2
[INFO] [stderr]    Compiling linked-hash-map v0.5.2
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling anyhow v1.0.28
[INFO] [stderr]    Compiling foreign-types-shared v0.1.1
[INFO] [stderr]    Compiling openssl v0.10.26
[INFO] [stderr]    Compiling lru-cache v0.1.2
[INFO] [stderr]    Compiling foreign-types v0.3.2
[INFO] [stderr]    Compiling fallible-streaming-iterator v0.1.9
[INFO] [stderr]    Compiling fallible-iterator v0.2.0
[INFO] [stderr]    Compiling bs58 v0.3.0
[INFO] [stderr]    Compiling libsqlite3-sys v0.17.1
[INFO] [stderr]    Compiling backtrace-sys v0.1.32
[INFO] [stderr]    Compiling openssl-sys v0.9.53
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]    Compiling time v0.1.42
[INFO] [stderr]    Compiling dirs v1.0.5
[INFO] [stderr]    Compiling rusqlite v0.21.0
[INFO] [stderr]    Compiling backtrace v0.3.42
[INFO] [stderr]    Compiling synstructure v0.12.3
[INFO] [stderr]    Compiling serde_derive v1.0.104
[INFO] [stderr]    Compiling thiserror-impl v1.0.16
[INFO] [stderr]    Compiling failure v0.1.6
[INFO] [stderr]    Compiling pwd v1.3.0
[INFO] [stderr]    Compiling expanduser v1.2.1
[INFO] [stderr]    Compiling thiserror v1.0.16
[INFO] [stderr]    Compiling bincode v1.2.1
[INFO] [stderr]    Compiling simple_blockchain v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stdout]    --> src/core.rs:681:9
[INFO] [stdout]     |
[INFO] [stdout] 681 |         std::mem::replace(&mut self.conn, sql::Connection::open_in_memory().unwrap());
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stdout]    --> src/core.rs:691:9
[INFO] [stdout]     |
[INFO] [stdout] 691 |         std::mem::replace(&mut self.conn, BlockchainStorage::open_conn(self.path.as_deref()));
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 14.80s
[INFO] running `Command { std: "docker" "inspect" "0605aac40108d1d28a3de8cee84d65fdf6cde1eaffd7304e71da8dcd909d613e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0605aac40108d1d28a3de8cee84d65fdf6cde1eaffd7304e71da8dcd909d613e", kill_on_drop: false }`
[INFO] [stdout] 0605aac40108d1d28a3de8cee84d65fdf6cde1eaffd7304e71da8dcd909d613e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:bb5b0feb4f87116a4ea905b7ff5bf5b85913db05e9f0fbc1abdd3168928d9075" "/opt/rustwide/cargo-home/bin/cargo" "+015dbcea68b7642e2acc268b5c8f3e9086fc02ff" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3269d4234629bce7032391201665dab76ba4f33d3ebe2afcc63fcccac9d42853
[INFO] running `Command { std: "docker" "start" "-a" "3269d4234629bce7032391201665dab76ba4f33d3ebe2afcc63fcccac9d42853", kill_on_drop: false }`
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling slab v0.4.2
[INFO] [stderr]    Compiling iovec v0.1.4
[INFO] [stderr]    Compiling net2 v0.2.34
[INFO] [stderr]    Compiling arc-swap v0.4.6
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling pin-project-lite v0.1.5
[INFO] [stderr]    Compiling futures-core v0.3.5
[INFO] [stderr]    Compiling bytes v0.5.4
[INFO] [stderr]    Compiling fnv v1.0.6
[INFO] [stderr]    Compiling tokio-macros v0.2.5
[INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stdout]    --> src/core.rs:681:9
[INFO] [stdout]     |
[INFO] [stdout] 681 |         std::mem::replace(&mut self.conn, sql::Connection::open_in_memory().unwrap());
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stdout]    --> src/core.rs:691:9
[INFO] [stdout]     |
[INFO] [stdout] 691 |         std::mem::replace(&mut self.conn, BlockchainStorage::open_conn(self.path.as_deref()));
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling signal-hook-registry v1.2.0
[INFO] [stderr]    Compiling mio v0.6.22
[INFO] [stderr]    Compiling mio-uds v0.6.8
[INFO] [stderr]    Compiling tokio v0.2.20
[INFO] [stderr]    Compiling simple_blockchain v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stdout]    --> src/core.rs:681:9
[INFO] [stdout]     |
[INFO] [stdout] 681 |         std::mem::replace(&mut self.conn, sql::Connection::open_in_memory().unwrap());
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stdout]    --> src/core.rs:691:9
[INFO] [stdout]     |
[INFO] [stdout] 691 |         std::mem::replace(&mut self.conn, BlockchainStorage::open_conn(self.path.as_deref()));
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 5.85s
[INFO] running `Command { std: "docker" "inspect" "3269d4234629bce7032391201665dab76ba4f33d3ebe2afcc63fcccac9d42853", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3269d4234629bce7032391201665dab76ba4f33d3ebe2afcc63fcccac9d42853", kill_on_drop: false }`
[INFO] [stdout] 3269d4234629bce7032391201665dab76ba4f33d3ebe2afcc63fcccac9d42853
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:bb5b0feb4f87116a4ea905b7ff5bf5b85913db05e9f0fbc1abdd3168928d9075" "/opt/rustwide/cargo-home/bin/cargo" "+015dbcea68b7642e2acc268b5c8f3e9086fc02ff" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] e6d4e13e0970eedd56a59920cd2633b69b53f12ba7b340ba3d36f9472a8ab3c6
[INFO] running `Command { std: "docker" "start" "-a" "e6d4e13e0970eedd56a59920cd2633b69b53f12ba7b340ba3d36f9472a8ab3c6", kill_on_drop: false }`
[INFO] [stderr] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stderr]    --> src/core.rs:681:9
[INFO] [stderr]     |
[INFO] [stderr] 681 |         std::mem::replace(&mut self.conn, sql::Connection::open_in_memory().unwrap());
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stderr]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stderr]    --> src/core.rs:691:9
[INFO] [stderr]     |
[INFO] [stderr] 691 |         std::mem::replace(&mut self.conn, BlockchainStorage::open_conn(self.path.as_deref()));
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stderr] 
[INFO] [stderr] warning: `simple_blockchain` (lib) generated 2 warnings
[INFO] [stderr] warning: `simple_blockchain` (lib test) generated 2 warnings (2 duplicates)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests src/libblockchain.rs (/opt/rustwide/target/debug/deps/simple_blockchain-c4879ddac2611ca4)
[INFO] [stdout] 
[INFO] [stdout] running 17 tests
[INFO] [stdout] test core::tests::format_amount ... ok
[INFO] [stdout] test core::tests::serialized_block_has_nonce_first ... ok
[INFO] [stdout] test core::tests::can_create_wallet ... ok
[INFO] [stdout] test core::tests::can_create_raw_transaction ... ok
[INFO] [stdout] test core::tests::round_trips_to_disk ... ok
[INFO] [stdout] test core::tests::can_create_trustworthy_wallet ... ok
[INFO] [stdout] test core::tests::can_produce_empty_stats ... ok
[INFO] [stdout] test core::tests::initial_no_tentative_txns ... ok
[INFO] [stdout] test core::tests::initial_default_wallet_zero_balance ... ok
[INFO] [stdout] test core::tests::can_mine_genesis_block ... ok
[INFO] [stdout] test core::tests::can_create_bs ... ok
[INFO] [stdout] test core::tests::can_receive_genesis_block ... ok
[INFO] [stdout] test core::tests::can_recreate_db ... ok
[INFO] [stdout] test core::tests::can_accept_orphaned_tentative_txns ... ok
[INFO] [stdout] test core::tests::can_send_money ... ok
[INFO] [stdout] test core::tests::can_solve_hash_challenge ... ok
[INFO] [stdout] test core::tests::can_accept_conflicting_tentative_txns ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 17 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.76s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests simple_blockchain
[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; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "e6d4e13e0970eedd56a59920cd2633b69b53f12ba7b340ba3d36f9472a8ab3c6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e6d4e13e0970eedd56a59920cd2633b69b53f12ba7b340ba3d36f9472a8ab3c6", kill_on_drop: false }`
[INFO] [stdout] e6d4e13e0970eedd56a59920cd2633b69b53f12ba7b340ba3d36f9472a8ab3c6