[INFO] cloning repository https://github.com/lion054/mintbase-rust-challenge-master
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/lion054/mintbase-rust-challenge-master" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flion054%2Fmintbase-rust-challenge-master", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flion054%2Fmintbase-rust-challenge-master'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 1bc1237ad195a556f680badd61ff817966e3ec26
[INFO] checking lion054/mintbase-rust-challenge-master against master#36b21637e93b038453924d3c66821089e71d8baa for pr-143164
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flion054%2Fmintbase-rust-challenge-master" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/lion054/mintbase-rust-challenge-master
[INFO] finished tweaking git repo https://github.com/lion054/mintbase-rust-challenge-master
[INFO] tweaked toml for git repo https://github.com/lion054/mintbase-rust-challenge-master written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/lion054/mintbase-rust-challenge-master on toolchain 36b21637e93b038453924d3c66821089e71d8baa
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+36b21637e93b038453924d3c66821089e71d8baa" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/lion054/mintbase-rust-challenge-master 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" "+36b21637e93b038453924d3c66821089e71d8baa" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded yahoo_finance_api v1.2.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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:cf8efcab8866f2cf4285301c7418e2f4f2a9b088c91ba69c40d5b659f81557f7" "/opt/rustwide/cargo-home/bin/cargo" "+36b21637e93b038453924d3c66821089e71d8baa" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b02e2e44fcacb376c4bdbfe9b404f102ccc3dbf2b9ccd197729d10305a35a3d8
[INFO] running `Command { std: "docker" "start" "-a" "b02e2e44fcacb376c4bdbfe9b404f102ccc3dbf2b9ccd197729d10305a35a3d8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b02e2e44fcacb376c4bdbfe9b404f102ccc3dbf2b9ccd197729d10305a35a3d8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b02e2e44fcacb376c4bdbfe9b404f102ccc3dbf2b9ccd197729d10305a35a3d8", kill_on_drop: false }`
[INFO] [stdout] b02e2e44fcacb376c4bdbfe9b404f102ccc3dbf2b9ccd197729d10305a35a3d8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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:cf8efcab8866f2cf4285301c7418e2f4f2a9b088c91ba69c40d5b659f81557f7" "/opt/rustwide/cargo-home/bin/cargo" "+36b21637e93b038453924d3c66821089e71d8baa" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7891f08e1e3eb25bf7771192d219866c4c049bafaa794e7d348a3091cf97b361
[INFO] running `Command { std: "docker" "start" "-a" "7891f08e1e3eb25bf7771192d219866c4c049bafaa794e7d348a3091cf97b361", kill_on_drop: false }`
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[INFO] [stderr]    Compiling proc-macro2 v1.0.37
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[INFO] [stderr]     Checking itoa v1.0.1
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[INFO] [stderr]     Checking lazy_static v1.4.0
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[INFO] [stdout] warning: irrefutable `while let` pattern
[INFO] [stdout]   --> src/task_iii.rs:18:11
[INFO] [stdout]    |
[INFO] [stdout] 18 |     while let res = rx.recv().await {
[INFO] [stdout]    |           ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this pattern will always match, so the loop will never exit
[INFO] [stdout]    = help: consider instead using a `loop { ... }` with a `let` inside it
[INFO] [stdout]    = note: `#[warn(irrefutable_let_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: irrefutable `while let` pattern
[INFO] [stdout]   --> src/task_iii.rs:18:11
[INFO] [stdout]    |
[INFO] [stdout] 18 |     while let res = rx.recv().await {
[INFO] [stdout]    |           ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this pattern will always match, so the loop will never exit
[INFO] [stdout]    = help: consider instead using a `loop { ... }` with a `let` inside it
[INFO] [stdout]    = note: `#[warn(irrefutable_let_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]  --> src/task_ii.rs:8:17
[INFO] [stdout]   |
[INFO] [stdout] 8 |             Err(e) => {},
[INFO] [stdout]   |                 ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]  --> src/task_ii.rs:8:17
[INFO] [stdout]   |
[INFO] [stdout] 8 |             Err(e) => {},
[INFO] [stdout]   |                 ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/task_iii.rs:14:17
[INFO] [stdout]    |
[INFO] [stdout] 14 |                 tx_clone.send(res).await;
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 14 |                 let _ = tx_clone.send(res).await;
[INFO] [stdout]    |                 +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/task_iii.rs:14:17
[INFO] [stdout]    |
[INFO] [stdout] 14 |                 tx_clone.send(res).await;
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 14 |                 let _ = tx_clone.send(res).await;
[INFO] [stdout]    |                 +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 37.47s
[INFO] running `Command { std: "docker" "inspect" "7891f08e1e3eb25bf7771192d219866c4c049bafaa794e7d348a3091cf97b361", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7891f08e1e3eb25bf7771192d219866c4c049bafaa794e7d348a3091cf97b361", kill_on_drop: false }`
[INFO] [stdout] 7891f08e1e3eb25bf7771192d219866c4c049bafaa794e7d348a3091cf97b361
