[INFO] cloning repository https://github.com/liudi4046/qinggong_blockchain
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/liudi4046/qinggong_blockchain" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fliudi4046%2Fqinggong_blockchain", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fliudi4046%2Fqinggong_blockchain'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f24c61c562c42cbdd9fc219d5c1340b1710006b3
[INFO] testing liudi4046/qinggong_blockchain against try#17092ad00ed8fe1e7f81a7e38238ff70779034b1 for pr-140985
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fliudi4046%2Fqinggong_blockchain" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/liudi4046/qinggong_blockchain on toolchain 17092ad00ed8fe1e7f81a7e38238ff70779034b1
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+17092ad00ed8fe1e7f81a7e38238ff70779034b1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/liudi4046/qinggong_blockchain
[INFO] finished tweaking git repo https://github.com/liudi4046/qinggong_blockchain
[INFO] tweaked toml for git repo https://github.com/liudi4046/qinggong_blockchain written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/liudi4046/qinggong_blockchain already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+17092ad00ed8fe1e7f81a7e38238ff70779034b1" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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:eea15d5475069c3ef791f10c2c6b5af2ee421ef2da1e680ecce1cba46243983b" "/opt/rustwide/cargo-home/bin/cargo" "+17092ad00ed8fe1e7f81a7e38238ff70779034b1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0f79e07ebdb530b758357dd80b90d7243e5b95f3cc21bc18f00d0b136eb13fd2
[INFO] running `Command { std: "docker" "start" "-a" "0f79e07ebdb530b758357dd80b90d7243e5b95f3cc21bc18f00d0b136eb13fd2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0f79e07ebdb530b758357dd80b90d7243e5b95f3cc21bc18f00d0b136eb13fd2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0f79e07ebdb530b758357dd80b90d7243e5b95f3cc21bc18f00d0b136eb13fd2", kill_on_drop: false }`
[INFO] [stdout] 0f79e07ebdb530b758357dd80b90d7243e5b95f3cc21bc18f00d0b136eb13fd2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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:eea15d5475069c3ef791f10c2c6b5af2ee421ef2da1e680ecce1cba46243983b" "/opt/rustwide/cargo-home/bin/cargo" "+17092ad00ed8fe1e7f81a7e38238ff70779034b1" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2c72d63df20998cb374373dc542f21d9329963ea858ea80bc0aebc8101baf8f9
[INFO] running `Command { std: "docker" "start" "-a" "2c72d63df20998cb374373dc542f21d9329963ea858ea80bc0aebc8101baf8f9", kill_on_drop: false }`
[INFO] [stderr]    Compiling version_check v0.9.4
[INFO] [stderr]    Compiling typenum v1.16.0
[INFO] [stderr]    Compiling cpufeatures v0.2.9
[INFO] [stderr]    Compiling opaque-debug v0.3.0
[INFO] [stderr]    Compiling hex v0.4.3
[INFO] [stderr]    Compiling generic-array v0.14.7
[INFO] [stderr]    Compiling block-buffer v0.9.0
[INFO] [stderr]    Compiling digest v0.9.0
[INFO] [stderr]    Compiling sha2 v0.9.9
[INFO] [stderr]    Compiling qinggong_blockchain v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `self`
[INFO] [stdout]  --> src/main.rs:3:25
[INFO] [stdout]   |
[INFO] [stdout] 3 | use blockchain::block::{self, Block};
[INFO] [stdout]   |                         ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `new_block`
[INFO] [stdout]   --> src/blockchain/mod.rs:22:37
[INFO] [stdout]    |
[INFO] [stdout] 22 |     pub fn receive_block(&mut self, new_block: Block) {}
[INFO] [stdout]    |                                     ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_new_block`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `receive_block` and `get_latest_block` are never used
[INFO] [stdout]   --> src/blockchain/mod.rs:22:12
[INFO] [stdout]    |
[INFO] [stdout] 14 | impl Blockchain {
[INFO] [stdout]    | --------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 22 |     pub fn receive_block(&mut self, new_block: Block) {}
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 58 |     pub fn get_latest_block(&mut self) -> &Block {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `sender`, `recipient`, `amount`, and `timestamp` are never read
[INFO] [stdout]  --> src/blockchain/transaction.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub struct Transaction {
[INFO] [stdout]   |            ----------- fields in this struct
[INFO] [stdout] 4 |     sender: String,
[INFO] [stdout]   |     ^^^^^^
[INFO] [stdout] 5 |     recipient: String,
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout] 6 |     amount: u32,
[INFO] [stdout]   |     ^^^^^^
[INFO] [stdout] 7 |     timestamp: u64,
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Transaction` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.82s
[INFO] running `Command { std: "docker" "inspect" "2c72d63df20998cb374373dc542f21d9329963ea858ea80bc0aebc8101baf8f9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2c72d63df20998cb374373dc542f21d9329963ea858ea80bc0aebc8101baf8f9", kill_on_drop: false }`
[INFO] [stdout] 2c72d63df20998cb374373dc542f21d9329963ea858ea80bc0aebc8101baf8f9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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:eea15d5475069c3ef791f10c2c6b5af2ee421ef2da1e680ecce1cba46243983b" "/opt/rustwide/cargo-home/bin/cargo" "+17092ad00ed8fe1e7f81a7e38238ff70779034b1" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 29327dcc257fad0f2eb2defd9ec7470103d0b6362dd7d4d37730365a39917bc3
[INFO] running `Command { std: "docker" "start" "-a" "29327dcc257fad0f2eb2defd9ec7470103d0b6362dd7d4d37730365a39917bc3", kill_on_drop: false }`
[INFO] [stderr]    Compiling qinggong_blockchain v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `self`
[INFO] [stdout]  --> src/main.rs:3:25
[INFO] [stdout]   |
[INFO] [stdout] 3 | use blockchain::block::{self, Block};
[INFO] [stdout]   |                         ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `new_block`
[INFO] [stdout]   --> src/blockchain/mod.rs:22:37
[INFO] [stdout]    |
[INFO] [stdout] 22 |     pub fn receive_block(&mut self, new_block: Block) {}
[INFO] [stdout]    |                                     ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_new_block`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `receive_block` and `get_latest_block` are never used
[INFO] [stdout]   --> src/blockchain/mod.rs:22:12
[INFO] [stdout]    |
[INFO] [stdout] 14 | impl Blockchain {
[INFO] [stdout]    | --------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 22 |     pub fn receive_block(&mut self, new_block: Block) {}
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 58 |     pub fn get_latest_block(&mut self) -> &Block {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `sender`, `recipient`, `amount`, and `timestamp` are never read
[INFO] [stdout]  --> src/blockchain/transaction.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub struct Transaction {
[INFO] [stdout]   |            ----------- fields in this struct
[INFO] [stdout] 4 |     sender: String,
[INFO] [stdout]   |     ^^^^^^
[INFO] [stdout] 5 |     recipient: String,
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout] 6 |     amount: u32,
[INFO] [stdout]   |     ^^^^^^
[INFO] [stdout] 7 |     timestamp: u64,
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Transaction` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.27s
[INFO] running `Command { std: "docker" "inspect" "29327dcc257fad0f2eb2defd9ec7470103d0b6362dd7d4d37730365a39917bc3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "29327dcc257fad0f2eb2defd9ec7470103d0b6362dd7d4d37730365a39917bc3", kill_on_drop: false }`
[INFO] [stdout] 29327dcc257fad0f2eb2defd9ec7470103d0b6362dd7d4d37730365a39917bc3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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:eea15d5475069c3ef791f10c2c6b5af2ee421ef2da1e680ecce1cba46243983b" "/opt/rustwide/cargo-home/bin/cargo" "+17092ad00ed8fe1e7f81a7e38238ff70779034b1" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 394168efd3537be291fe3c648b4bea092a6023aa4a59e5c019f7a237dec0b427
[INFO] running `Command { std: "docker" "start" "-a" "394168efd3537be291fe3c648b4bea092a6023aa4a59e5c019f7a237dec0b427", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `self`
[INFO] [stderr]  --> src/main.rs:3:25
[INFO] [stderr]   |
[INFO] [stderr] 3 | use blockchain::block::{self, Block};
[INFO] [stderr]   |                         ^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `new_block`
[INFO] [stderr]   --> src/blockchain/mod.rs:22:37
[INFO] [stderr]    |
[INFO] [stderr] 22 |     pub fn receive_block(&mut self, new_block: Block) {}
[INFO] [stderr]    |                                     ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_new_block`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: methods `receive_block` and `get_latest_block` are never used
[INFO] [stderr]   --> src/blockchain/mod.rs:22:12
[INFO] [stderr]    |
[INFO] [stderr] 14 | impl Blockchain {
[INFO] [stderr]    | --------------- methods in this implementation
[INFO] [stderr] ...
[INFO] [stderr] 22 |     pub fn receive_block(&mut self, new_block: Block) {}
[INFO] [stderr]    |            ^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 58 |     pub fn get_latest_block(&mut self) -> &Block {
[INFO] [stderr]    |            ^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: fields `sender`, `recipient`, `amount`, and `timestamp` are never read
[INFO] [stderr]  --> src/blockchain/transaction.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | pub struct Transaction {
[INFO] [stderr]   |            ----------- fields in this struct
[INFO] [stderr] 4 |     sender: String,
[INFO] [stderr]   |     ^^^^^^
[INFO] [stderr] 5 |     recipient: String,
[INFO] [stderr]   |     ^^^^^^^^^
[INFO] [stderr] 6 |     amount: u32,
[INFO] [stderr]   |     ^^^^^^
[INFO] [stderr] 7 |     timestamp: u64,
[INFO] [stderr]   |     ^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `Transaction` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: `qinggong_blockchain` (bin "qinggong_blockchain" test) generated 4 warnings (run `cargo fix --bin "qinggong_blockchain" --tests` to apply 1 suggestion)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/qinggong_blockchain-af7b4d03d7b55874)
[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" "394168efd3537be291fe3c648b4bea092a6023aa4a59e5c019f7a237dec0b427", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "394168efd3537be291fe3c648b4bea092a6023aa4a59e5c019f7a237dec0b427", kill_on_drop: false }`
[INFO] [stdout] 394168efd3537be291fe3c648b4bea092a6023aa4a59e5c019f7a237dec0b427