[INFO] cloning repository https://github.com/Aofusa/blockchain-sample
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Aofusa/blockchain-sample" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAofusa%2Fblockchain-sample", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAofusa%2Fblockchain-sample'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] fa38d9c86f08da0a5d2367bbc841f051285980c4
[INFO] checking Aofusa/blockchain-sample/fa38d9c86f08da0a5d2367bbc841f051285980c4 against try#7014e13d5becc920d4bea3cd87942c8a13d359bf+rustflags=-Dtail_expr_drop_order for pr-129864
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAofusa%2Fblockchain-sample" "/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/Aofusa/blockchain-sample on toolchain 7014e13d5becc920d4bea3cd87942c8a13d359bf
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Aofusa/blockchain-sample
[INFO] finished tweaking git repo https://github.com/Aofusa/blockchain-sample
[INFO] tweaked toml for git repo https://github.com/Aofusa/blockchain-sample written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/Aofusa/blockchain-sample 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" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7b3f5df9f92f7ecc990160dc6a07cd25420ee7e30df5c27ce9a4c3d8e93cf0dc
[INFO] running `Command { std: "docker" "start" "-a" "7b3f5df9f92f7ecc990160dc6a07cd25420ee7e30df5c27ce9a4c3d8e93cf0dc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7b3f5df9f92f7ecc990160dc6a07cd25420ee7e30df5c27ce9a4c3d8e93cf0dc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7b3f5df9f92f7ecc990160dc6a07cd25420ee7e30df5c27ce9a4c3d8e93cf0dc", kill_on_drop: false }`
[INFO] [stdout] 7b3f5df9f92f7ecc990160dc6a07cd25420ee7e30df5c27ce9a4c3d8e93cf0dc
[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 -Dtail_expr_drop_order" "-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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 970c8bb7cdcfd372db861bb102a04751a7cab00d5f93deb0a2f233d7be9867df
[INFO] running `Command { std: "docker" "start" "-a" "970c8bb7cdcfd372db861bb102a04751a7cab00d5f93deb0a2f233d7be9867df", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.19
[INFO] [stderr]    Compiling syn v1.0.38
[INFO] [stderr]    Compiling autocfg v1.0.0
[INFO] [stderr]    Compiling serde_derive v1.0.114
[INFO] [stderr]    Compiling libc v0.2.74
[INFO] [stderr]    Compiling serde v1.0.114
[INFO] [stderr]    Compiling cc v1.0.58
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling anyhow v1.0.32
[INFO] [stderr]    Compiling serde_json v1.0.57
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling num-integer v0.1.43
[INFO] [stderr]     Checking itoa v0.4.6
[INFO] [stderr]     Checking spin v0.5.2
[INFO] [stderr]     Checking untrusted v0.7.1
[INFO] [stderr]     Checking once_cell v1.4.0
[INFO] [stderr]    Compiling ring v0.16.15
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]     Checking time v0.1.43
[INFO] [stderr]    Compiling thiserror-impl v1.0.20
[INFO] [stderr]     Checking thiserror v1.0.20
[INFO] [stderr]     Checking chrono v0.4.13
[INFO] [stderr]     Checking blockchain-sample v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: fields `sender_address`, `receiver_address`, and `value` are never read
[INFO] [stdout]  --> src/v1.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | struct Transaction {
[INFO] [stdout]   |        ----------- fields in this struct
[INFO] [stdout] 3 |     sender_address: i32,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout] 4 |     receiver_address: i32,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 5 |     value: f32
[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]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `sender_address`, `receiver_address`, and `value` are never read
[INFO] [stdout]  --> src/v1.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | struct Transaction {
[INFO] [stdout]   |        ----------- fields in this struct
[INFO] [stdout] 3 |     sender_address: i32,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout] 4 |     receiver_address: i32,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 5 |     value: f32
[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]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 24.41s
[INFO] running `Command { std: "docker" "inspect" "970c8bb7cdcfd372db861bb102a04751a7cab00d5f93deb0a2f233d7be9867df", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "970c8bb7cdcfd372db861bb102a04751a7cab00d5f93deb0a2f233d7be9867df", kill_on_drop: false }`
[INFO] [stdout] 970c8bb7cdcfd372db861bb102a04751a7cab00d5f93deb0a2f233d7be9867df