[INFO] fetching crate bookshelf 1.1.4... [INFO] checking bookshelf-1.1.4 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar [INFO] extracting crate bookshelf 1.1.4 into /workspace/builds/worker-3-tc1/source [INFO] validating manifest of crates.io crate bookshelf 1.1.4 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 crates.io crate bookshelf 1.1.4 [INFO] finished tweaking crates.io crate bookshelf 1.1.4 [INFO] tweaked toml for crates.io crate bookshelf 1.1.4 written to /workspace/builds/worker-3-tc1/source/Cargo.toml [INFO] crate crates.io crate bookshelf 1.1.4 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 unicode-segmentation v1.7.1 [INFO] [stderr] Downloaded shellexpand v2.1.0 [INFO] [stderr] Downloaded redox_termios v0.1.2 [INFO] [stderr] Downloaded termion v1.5.6 [INFO] [stderr] Downloaded dirs-next v2.0.0 [INFO] [stderr] Downloaded clap_derive v3.0.0-beta.2 [INFO] [stderr] Downloaded linked-hash-map v0.5.4 [INFO] [stderr] Downloaded redox_users v0.4.0 [INFO] [stderr] Downloaded byteorder v1.3.4 [INFO] [stderr] Downloaded heck v0.3.2 [INFO] [stderr] Downloaded clap v3.0.0-beta.2 [INFO] [stderr] Downloaded regex-syntax v0.6.23 [INFO] [stderr] Downloaded libc v0.2.88 [INFO] [stderr] Downloaded aho-corasick v0.7.15 [INFO] [stderr] Downloaded regex v1.4.5 [INFO] [stderr] Downloaded syn v1.0.64 [INFO] [stderr] Downloaded serde v1.0.124 [INFO] [stderr] Downloaded tui v0.14.0 [INFO] [stderr] Downloaded serde_derive v1.0.124 [INFO] [stderr] Downloaded bincode v1.3.2 [INFO] [stderr] Downloaded version_check v0.9.2 [INFO] [stderr] Downloaded os_str_bytes v2.4.0 [INFO] [stderr] Downloaded textwrap v0.12.1 [INFO] [stderr] Downloaded memchr v2.3.4 [INFO] [stderr] Downloaded dtoa v0.4.7 [INFO] [stderr] Downloaded proc-macro2 v1.0.24 [INFO] [stderr] Downloaded unicode-xid v0.2.1 [INFO] [stderr] Downloaded serde_yaml v0.8.17 [INFO] [stderr] Downloaded getrandom v0.2.2 [INFO] [stderr] Downloaded dirs-sys-next v0.1.2 [INFO] [stderr] Downloaded redox_syscall v0.2.5 [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] ad488c5af3215621e482596a0c53f63e711836ce741ca853507a8896658c9ad8 [INFO] running `Command { std: "docker" "start" "-a" "ad488c5af3215621e482596a0c53f63e711836ce741ca853507a8896658c9ad8", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "ad488c5af3215621e482596a0c53f63e711836ce741ca853507a8896658c9ad8", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "ad488c5af3215621e482596a0c53f63e711836ce741ca853507a8896658c9ad8", kill_on_drop: false }` [INFO] [stdout] ad488c5af3215621e482596a0c53f63e711836ce741ca853507a8896658c9ad8 [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] a447ea5cf5a544313fc68d89575064ccf5762397c1f08aa59786ba7560f7bc32 [INFO] running `Command { std: "docker" "start" "-a" "a447ea5cf5a544313fc68d89575064ccf5762397c1f08aa59786ba7560f7bc32", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.24 [INFO] [stderr] Compiling unicode-xid v0.2.1 [INFO] [stderr] Compiling libc v0.2.88 [INFO] [stderr] Compiling syn v1.0.64 [INFO] [stderr] Compiling version_check v0.9.2 [INFO] [stderr] Compiling serde_derive v1.0.124 [INFO] [stderr] Compiling autocfg v1.0.1 [INFO] [stderr] Compiling memchr v2.3.4 [INFO] [stderr] Compiling bitflags v1.2.1 [INFO] [stderr] Compiling serde v1.0.124 [INFO] [stderr] Checking linked-hash-map v0.5.4 [INFO] [stderr] Checking unicode-width v0.1.8 [INFO] [stderr] Compiling byteorder v1.3.4 [INFO] [stderr] Compiling unicode-segmentation v1.7.1 [INFO] [stderr] Checking numtoa v0.1.0 [INFO] [stderr] Checking hashbrown v0.9.1 [INFO] [stderr] Checking cassowary v0.3.0 [INFO] [stderr] Checking textwrap v0.12.1 [INFO] [stderr] Checking dtoa v0.4.7 [INFO] [stderr] Checking yaml-rust v0.4.5 [INFO] [stderr] Checking os_str_bytes v2.4.0 [INFO] [stderr] Checking termcolor v1.1.2 [INFO] [stderr] Compiling proc-macro-error-attr v1.0.4 [INFO] [stderr] Compiling proc-macro-error v1.0.4 [INFO] [stderr] Checking regex-syntax v0.6.23 [INFO] [stderr] Compiling heck v0.3.2 [INFO] [stderr] Compiling indexmap v1.6.2 [INFO] [stderr] Checking aho-corasick v0.7.15 [INFO] [stderr] Compiling quote v1.0.9 [INFO] [stderr] Checking dirs-sys-next v0.1.2 [INFO] [stderr] Checking termion v1.5.6 [INFO] [stderr] Checking atty v0.2.14 [INFO] [stderr] Checking dirs-next v2.0.0 [INFO] [stderr] Checking shellexpand v2.1.0 [INFO] [stderr] Checking tui v0.14.0 [INFO] [stderr] Checking regex v1.4.5 [INFO] [stderr] Compiling clap_derive v3.0.0-beta.2 [INFO] [stderr] Checking clap v3.0.0-beta.2 [INFO] [stderr] Checking serde_yaml v0.8.17 [INFO] [stderr] Checking bincode v1.3.2 [INFO] [stderr] Checking bookshelf v1.1.4 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused variable: `module` [INFO] [stdout] --> src/tui/ui.rs:236:25 [INFO] [stdout] | [INFO] [stdout] 236 | fn open_item(&self, module: &String, code: &String) {} [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_module` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `code` [INFO] [stdout] --> src/tui/ui.rs:236:42 [INFO] [stdout] | [INFO] [stdout] 236 | fn open_item(&self, module: &String, code: &String) {} [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_code` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `input_handle` and `tick_handle` are never read [INFO] [stdout] --> src/tui/event.rs:22:5 [INFO] [stdout] | [INFO] [stdout] 20 | pub struct Events { [INFO] [stdout] | ------ fields in this struct [INFO] [stdout] 21 | rx: mpsc::Receiver>, [INFO] [stdout] 22 | input_handle: thread::JoinHandle<()>, [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] 23 | ignore_exit_key: Arc, [INFO] [stdout] 24 | tick_handle: thread::JoinHandle<()>, [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `module_handler` is never read [INFO] [stdout] --> src/tui/ui.rs:75:5 [INFO] [stdout] | [INFO] [stdout] 72 | pub struct TUI<'lt> { [INFO] [stdout] | --- field in this struct [INFO] [stdout] ... [INFO] [stdout] 75 | module_handler: &'lt ModuleHandler, [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `open_item` is never used [INFO] [stdout] --> src/tui/ui.rs:236:8 [INFO] [stdout] | [INFO] [stdout] 108 | impl<'lt> TUI<'lt> { [INFO] [stdout] | ------------------ method in this implementation [INFO] [stdout] ... [INFO] [stdout] 236 | fn open_item(&self, module: &String, code: &String) {} [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `module` [INFO] [stdout] --> src/tui/ui.rs:236:25 [INFO] [stdout] | [INFO] [stdout] 236 | fn open_item(&self, module: &String, code: &String) {} [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_module` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `code` [INFO] [stdout] --> src/tui/ui.rs:236:42 [INFO] [stdout] | [INFO] [stdout] 236 | fn open_item(&self, module: &String, code: &String) {} [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_code` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/main.rs:111:21 [INFO] [stdout] | [INFO] [stdout] 111 | / match module_handler.download(&module, &code, &dest_dir) { [INFO] [stdout] 112 | | Ok(()) => Ok(()), [INFO] [stdout] 113 | | Err(e) => Err(e), [INFO] [stdout] 114 | | }; [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] 111 | let _ = match module_handler.download(&module, &code, &dest_dir) { [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `input_handle` and `tick_handle` are never read [INFO] [stdout] --> src/tui/event.rs:22:5 [INFO] [stdout] | [INFO] [stdout] 20 | pub struct Events { [INFO] [stdout] | ------ fields in this struct [INFO] [stdout] 21 | rx: mpsc::Receiver>, [INFO] [stdout] 22 | input_handle: thread::JoinHandle<()>, [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] 23 | ignore_exit_key: Arc, [INFO] [stdout] 24 | tick_handle: thread::JoinHandle<()>, [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `module_handler` is never read [INFO] [stdout] --> src/tui/ui.rs:75:5 [INFO] [stdout] | [INFO] [stdout] 72 | pub struct TUI<'lt> { [INFO] [stdout] | --- field in this struct [INFO] [stdout] ... [INFO] [stdout] 75 | module_handler: &'lt ModuleHandler, [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `open_item` is never used [INFO] [stdout] --> src/tui/ui.rs:236:8 [INFO] [stdout] | [INFO] [stdout] 108 | impl<'lt> TUI<'lt> { [INFO] [stdout] | ------------------ method in this implementation [INFO] [stdout] ... [INFO] [stdout] 236 | fn open_item(&self, module: &String, code: &String) {} [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/main.rs:111:21 [INFO] [stdout] | [INFO] [stdout] 111 | / match module_handler.download(&module, &code, &dest_dir) { [INFO] [stdout] 112 | | Ok(()) => Ok(()), [INFO] [stdout] 113 | | Err(e) => Err(e), [INFO] [stdout] 114 | | }; [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] 111 | let _ = match module_handler.download(&module, &code, &dest_dir) { [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 6 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 6 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 16.91s [INFO] running `Command { std: "docker" "inspect" "a447ea5cf5a544313fc68d89575064ccf5762397c1f08aa59786ba7560f7bc32", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a447ea5cf5a544313fc68d89575064ccf5762397c1f08aa59786ba7560f7bc32", kill_on_drop: false }` [INFO] [stdout] a447ea5cf5a544313fc68d89575064ccf5762397c1f08aa59786ba7560f7bc32