[INFO] cloning repository https://github.com/bitfriend/mintbase-rust-challenge [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/bitfriend/mintbase-rust-challenge" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbitfriend%2Fmintbase-rust-challenge", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbitfriend%2Fmintbase-rust-challenge'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 0df272aa819bfdd6deef0c15c5e51ec8787b58e2 [INFO] checking bitfriend/mintbase-rust-challenge against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbitfriend%2Fmintbase-rust-challenge" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/bitfriend/mintbase-rust-challenge on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/bitfriend/mintbase-rust-challenge [INFO] finished tweaking git repo https://github.com/bitfriend/mintbase-rust-challenge [INFO] tweaked toml for git repo https://github.com/bitfriend/mintbase-rust-challenge written to /workspace/builds/worker-3-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/bitfriend/mintbase-rust-challenge 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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded async-compat v0.2.1 [INFO] [stderr] Downloaded yahoo_finance_api v1.2.2 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] c755e93d33e8ece339ed79e4ca3a5fe8854dec65074260486cec21f232b110aa [INFO] running `Command { std: "docker" "start" "-a" "c755e93d33e8ece339ed79e4ca3a5fe8854dec65074260486cec21f232b110aa", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "c755e93d33e8ece339ed79e4ca3a5fe8854dec65074260486cec21f232b110aa", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "c755e93d33e8ece339ed79e4ca3a5fe8854dec65074260486cec21f232b110aa", kill_on_drop: false }` [INFO] [stdout] c755e93d33e8ece339ed79e4ca3a5fe8854dec65074260486cec21f232b110aa [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] f5e5fdb76f5dd9bbe3c863abb39bfda5fdf68afa4d33bba9c3aede630b292139 [INFO] running `Command { std: "docker" "start" "-a" "f5e5fdb76f5dd9bbe3c863abb39bfda5fdf68afa4d33bba9c3aede630b292139", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.124 [INFO] [stderr] Compiling proc-macro2 v1.0.37 [INFO] [stderr] Compiling syn v1.0.91 [INFO] [stderr] Compiling log v0.4.16 [INFO] [stderr] Compiling lock_api v0.4.7 [INFO] [stderr] Compiling parking_lot_core v0.9.2 [INFO] [stderr] Compiling openssl-sys v0.9.72 [INFO] [stderr] Checking itoa v1.0.1 [INFO] [stderr] Compiling ring v0.16.20 [INFO] [stderr] Compiling serde_derive v1.0.136 [INFO] [stderr] Compiling openssl v0.10.38 [INFO] [stderr] Compiling serde v1.0.136 [INFO] [stderr] Compiling num-traits v0.2.14 [INFO] [stderr] Compiling num-integer v0.1.44 [INFO] [stderr] Compiling serde_json v1.0.79 [INFO] [stderr] Compiling rustls v0.20.4 [INFO] [stderr] Checking http v0.2.6 [INFO] [stderr] Checking ryu v1.0.9 [INFO] [stderr] Checking futures-io v0.3.21 [INFO] [stderr] Checking want v0.3.0 [INFO] [stderr] Checking signal-hook-registry v1.4.0 [INFO] [stderr] Checking socket2 v0.4.4 [INFO] [stderr] Checking mio v0.8.2 [INFO] [stderr] Checking num_cpus v1.13.1 [INFO] [stderr] Checking time v0.1.44 [INFO] [stderr] Compiling native-tls v0.2.10 [INFO] [stderr] Compiling quote v1.0.18 [INFO] [stderr] Checking parking_lot v0.12.0 [INFO] [stderr] Checking chrono v0.4.19 [INFO] [stderr] Checking http-body v0.4.4 [INFO] [stderr] Checking sct v0.7.0 [INFO] [stderr] Checking webpki v0.22.0 [INFO] [stderr] Compiling tokio-macros v1.7.0 [INFO] [stderr] Compiling tracing-attributes v0.1.21 [INFO] [stderr] Checking tokio v1.17.0 [INFO] [stderr] Checking tracing v0.1.34 [INFO] [stderr] Checking tokio-util v0.7.1 [INFO] [stderr] Checking tokio-native-tls v0.3.0 [INFO] [stderr] Checking async-compat v0.2.1 [INFO] [stderr] Checking h2 v0.3.13 [INFO] [stderr] Checking serde_urlencoded v0.7.1 [INFO] [stderr] Checking hyper v0.14.18 [INFO] [stderr] Checking hyper-tls v0.5.0 [INFO] [stderr] Checking reqwest v0.11.10 [INFO] [stderr] Checking yahoo_finance_api v1.2.2 [INFO] [stderr] Checking mintbase-interview-rust-task v0.1.0 (/opt/rustwide/workdir) [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 `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: 3 warnings emitted [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: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 28.86s [INFO] running `Command { std: "docker" "inspect" "f5e5fdb76f5dd9bbe3c863abb39bfda5fdf68afa4d33bba9c3aede630b292139", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "f5e5fdb76f5dd9bbe3c863abb39bfda5fdf68afa4d33bba9c3aede630b292139", kill_on_drop: false }` [INFO] [stdout] f5e5fdb76f5dd9bbe3c863abb39bfda5fdf68afa4d33bba9c3aede630b292139 [INFO] checking bitfriend/mintbase-rust-challenge against try#645bb72776a6a56a1a8f52631a44bd082b2ba509 for absurd-question-mark-desugar [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbitfriend%2Fmintbase-rust-challenge" "/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/bitfriend/mintbase-rust-challenge on toolchain 645bb72776a6a56a1a8f52631a44bd082b2ba509 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/bitfriend/mintbase-rust-challenge [INFO] finished tweaking git repo https://github.com/bitfriend/mintbase-rust-challenge [INFO] tweaked toml for git repo https://github.com/bitfriend/mintbase-rust-challenge written to /workspace/builds/worker-3-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/bitfriend/mintbase-rust-challenge 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" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 25ec8deae6f207d7ed06a4732a8435adcad7ef6a543dc80737e4366bd0597bd9 [INFO] running `Command { std: "docker" "start" "-a" "25ec8deae6f207d7ed06a4732a8435adcad7ef6a543dc80737e4366bd0597bd9", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "25ec8deae6f207d7ed06a4732a8435adcad7ef6a543dc80737e4366bd0597bd9", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "25ec8deae6f207d7ed06a4732a8435adcad7ef6a543dc80737e4366bd0597bd9", kill_on_drop: false }` [INFO] [stdout] 25ec8deae6f207d7ed06a4732a8435adcad7ef6a543dc80737e4366bd0597bd9 [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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] d154d8e0a7e38d618bdd89911e2cabc178a21012774911e445bd155385c00dde [INFO] running `Command { std: "docker" "start" "-a" "d154d8e0a7e38d618bdd89911e2cabc178a21012774911e445bd155385c00dde", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.124 [INFO] [stderr] Compiling proc-macro2 v1.0.37 [INFO] [stderr] Compiling syn v1.0.91 [INFO] [stderr] Compiling log v0.4.16 [INFO] [stderr] Compiling lock_api v0.4.7 [INFO] [stderr] Compiling parking_lot_core v0.9.2 [INFO] [stderr] Compiling openssl-sys v0.9.72 [INFO] [stderr] Checking itoa v1.0.1 [INFO] [stderr] Compiling ring v0.16.20 [INFO] [stderr] Compiling serde_derive v1.0.136 [INFO] [stderr] Compiling openssl v0.10.38 [INFO] [stderr] Compiling serde v1.0.136 [INFO] [stderr] Compiling num-traits v0.2.14 [INFO] [stderr] Compiling num-integer v0.1.44 [INFO] [stderr] Checking ryu v1.0.9 [INFO] [stderr] Compiling serde_json v1.0.79 [INFO] [stderr] Checking http v0.2.6 [INFO] [stderr] Compiling rustls v0.20.4 [INFO] [stderr] Checking futures-io v0.3.21 [INFO] [stderr] Checking want v0.3.0 [INFO] [stderr] Compiling native-tls v0.2.10 [INFO] [stderr] Checking signal-hook-registry v1.4.0 [INFO] [stderr] Checking socket2 v0.4.4 [INFO] [stderr] Checking mio v0.8.2 [INFO] [stderr] Checking num_cpus v1.13.1 [INFO] [stderr] Checking time v0.1.44 [INFO] [stderr] Compiling quote v1.0.18 [INFO] [stderr] Checking parking_lot v0.12.0 [INFO] [stderr] Checking chrono v0.4.19 [INFO] [stderr] Checking http-body v0.4.4 [INFO] [stdout] error[E0282]: type annotations needed [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/chrono-0.4.19/src/format/parse.rs:491:21 [INFO] [stdout] | [INFO] [stdout] 491 | Err(INVALID)?; [INFO] [stdout] | ^^^ cannot infer type of the type parameter `T` declared on the enum `Result` [INFO] [stdout] | [INFO] [stdout] help: consider specifying the generic arguments [INFO] [stdout] | [INFO] [stdout] 491 | Err::(INVALID)?; [INFO] [stdout] | +++++++++++++++++++++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 1 previous error [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0282`. [INFO] [stdout] [INFO] [stderr] error: could not compile `chrono` (lib) due to 2 previous errors [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] running `Command { std: "docker" "inspect" "d154d8e0a7e38d618bdd89911e2cabc178a21012774911e445bd155385c00dde", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "d154d8e0a7e38d618bdd89911e2cabc178a21012774911e445bd155385c00dde", kill_on_drop: false }` [INFO] [stdout] d154d8e0a7e38d618bdd89911e2cabc178a21012774911e445bd155385c00dde