[INFO] fetching crate evcxr 0.8.1... [INFO] checking evcxr-0.8.1 against try#4a23c45c7893f1416456144e3883cc48ea91722e for pr-82322 [INFO] extracting crate evcxr 0.8.1 into /workspace/builds/worker-8/source [INFO] validating manifest of crates.io crate evcxr 0.8.1 on toolchain 4a23c45c7893f1416456144e3883cc48ea91722e [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4a23c45c7893f1416456144e3883cc48ea91722e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate evcxr 0.8.1 [INFO] finished tweaking crates.io crate evcxr 0.8.1 [INFO] tweaked toml for crates.io crate evcxr 0.8.1 written to /workspace/builds/worker-8/source/Cargo.toml [INFO] crate crates.io crate evcxr 0.8.1 already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4a23c45c7893f1416456144e3883cc48ea91722e" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "rustops/crates-build-env@sha256:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+4a23c45c7893f1416456144e3883cc48ea91722e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] e13f23b6a37ee157fcd69f132d5e252fe9806e2a26a3de39d2e7def467546671 [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "e13f23b6a37ee157fcd69f132d5e252fe9806e2a26a3de39d2e7def467546671", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "e13f23b6a37ee157fcd69f132d5e252fe9806e2a26a3de39d2e7def467546671", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e13f23b6a37ee157fcd69f132d5e252fe9806e2a26a3de39d2e7def467546671", kill_on_drop: false }` [INFO] [stdout] e13f23b6a37ee157fcd69f132d5e252fe9806e2a26a3de39d2e7def467546671 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+4a23c45c7893f1416456144e3883cc48ea91722e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] 4cabe64899ab8102614f8a84bde9bda6f85a2df56b14e30103fd750aa6c4579e [INFO] running `Command { std: "docker" "start" "-a" "4cabe64899ab8102614f8a84bde9bda6f85a2df56b14e30103fd750aa6c4579e", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.86 [INFO] [stderr] Compiling log v0.4.14 [INFO] [stderr] Checking rustc-hash v1.1.0 [INFO] [stderr] Compiling serde_json v1.0.62 [INFO] [stderr] Checking once_cell v1.5.2 [INFO] [stderr] Checking hashbrown v0.9.1 [INFO] [stderr] Checking text-size v1.1.0 [INFO] [stderr] Compiling fst v0.4.5 [INFO] [stderr] Checking drop_bomb v0.1.5 [INFO] [stderr] Checking dissimilar v1.0.2 [INFO] [stderr] Checking ra_ap_la-arena v0.0.37 [INFO] [stderr] Checking arrayvec v0.5.2 [INFO] [stderr] Checking ra_ap_paths v0.0.37 [INFO] [stderr] Checking oorandom v11.1.3 [INFO] [stderr] Checking pin-project-lite v0.2.4 [INFO] [stderr] Checking ansi_term v0.12.1 [INFO] [stderr] Checking fixedbitset v0.2.0 [INFO] [stderr] Compiling rayon-core v1.9.0 [INFO] [stderr] Checking scoped-tls v1.0.0 [INFO] [stderr] Checking same-file v1.0.6 [INFO] [stderr] Checking jod-thread v0.1.2 [INFO] [stderr] Checking home v0.5.3 [INFO] [stderr] Checking adler v0.2.3 [INFO] [stderr] Checking remove_dir_all v0.5.3 [INFO] [stderr] Checking json v0.12.4 [INFO] [stderr] Checking evcxr_input v1.0.0 [INFO] [stderr] Checking unicode-segmentation v1.7.1 [INFO] [stderr] Checking libloading v0.7.0 [INFO] [stderr] Compiling crossbeam-utils v0.8.1 [INFO] [stderr] Compiling memoffset v0.6.1 [INFO] [stderr] Checking tracing-core v0.1.17 [INFO] [stderr] Checking sharded-slab v0.1.1 [INFO] [stderr] Compiling rayon v1.5.0 [INFO] [stderr] Compiling miniz_oxide v0.4.3 [INFO] [stderr] Checking itertools v0.10.0 [INFO] [stderr] Checking rustc-ap-rustc_lexer v702.0.0 [INFO] [stderr] Checking itertools v0.9.0 [INFO] [stderr] Checking regex v1.4.3 [INFO] [stderr] Checking regex-automata v0.1.9 [INFO] [stderr] Checking ra_ap_parser v0.0.37 [INFO] [stderr] Checking ra_ap_text_edit v0.0.37 [INFO] [stderr] Compiling unicase v2.6.0 [INFO] [stderr] Checking form_urlencoded v1.0.0 [INFO] [stderr] Checking thread_local v1.1.3 [INFO] [stderr] Checking ra_ap_toolchain v0.0.37 [INFO] [stderr] Checking walkdir v2.3.1 [INFO] [stderr] Checking semver-parser v0.10.2 [INFO] [stderr] Checking indexmap v1.6.1 [INFO] [stderr] Checking idna v0.2.1 [INFO] [stderr] Compiling salsa-macros v0.16.0 [INFO] [stderr] Compiling tracing-attributes v0.1.12 [INFO] [stderr] Compiling synstructure v0.12.4 [INFO] [stderr] Compiling thiserror-impl v1.0.23 [INFO] [stderr] Checking always-assert v0.1.2 [INFO] [stderr] Checking tracing-log v0.1.1 [INFO] [stderr] Checking ena v0.14.0 [INFO] [stderr] Checking petgraph v0.5.1 [INFO] [stderr] Checking ra_ap_stdx v0.0.37 [INFO] [stderr] Checking url v2.2.0 [INFO] [stderr] Checking smol_str v0.1.17 [INFO] [stderr] Checking tracing-serde v0.1.2 [INFO] [stderr] Checking cargo-platform v0.1.1 [INFO] [stderr] Checking semver v0.11.0 [INFO] [stderr] Checking crossbeam-channel v0.5.0 [INFO] [stderr] Checking crossbeam-epoch v0.9.1 [INFO] [stderr] Checking num_cpus v1.13.0 [INFO] [stderr] Checking perf-event-open-sys v1.0.1 [INFO] [stderr] Checking parking_lot_core v0.8.3 [INFO] [stderr] Checking time v0.1.43 [INFO] [stderr] Checking atty v0.2.14 [INFO] [stderr] Checking getrandom v0.2.2 [INFO] [stderr] Checking inotify-sys v0.1.5 [INFO] [stderr] Checking filetime v0.2.14 [INFO] [stderr] Checking mio v0.7.7 [INFO] [stderr] Checking dirs-sys v0.3.5 [INFO] [stderr] Checking sig v1.0.0 [INFO] [stderr] Checking backtrace v0.3.56 [INFO] [stderr] Checking pulldown-cmark v0.8.0 [INFO] [stderr] Checking ra_ap_vfs v0.0.37 [INFO] [stderr] Checking matchers v0.0.1 [INFO] [stderr] Checking ra_ap_tt v0.0.37 [INFO] [stderr] Checking dashmap v4.0.2 [INFO] [stderr] Checking crossbeam-deque v0.8.0 [INFO] [stderr] Checking perf-event v0.4.6 [INFO] [stderr] Checking inotify v0.9.2 [INFO] [stderr] Checking rand_core v0.6.1 [INFO] [stderr] Checking parking_lot v0.11.1 [INFO] [stderr] Checking dirs v3.0.1 [INFO] [stderr] Checking chrono v0.4.19 [INFO] [stderr] Checking ra_ap_cfg v0.0.37 [INFO] [stderr] Checking countme v2.0.4 [INFO] [stderr] Checking notify v5.0.0-pre.5 [INFO] [stderr] Checking rand_chacha v0.3.0 [INFO] [stderr] Checking ra_ap_profile v0.0.37 [INFO] [stderr] Checking rowan v0.12.5 [INFO] [stderr] Compiling chalk-derive v0.55.0 [INFO] [stderr] Checking rand v0.8.3 [INFO] [stderr] Checking ra_ap_test_utils v0.0.37 [INFO] [stderr] Checking cargo_metadata v0.12.3 [INFO] [stderr] Checking ra_ap_vfs-notify v0.0.37 [INFO] [stderr] Checking pulldown-cmark-to-cmark v6.0.0 [INFO] [stderr] Checking salsa v0.16.0 [INFO] [stderr] Checking ra_ap_syntax v0.0.37 [INFO] [stderr] Checking thiserror v1.0.23 [INFO] [stderr] Checking which v4.0.2 [INFO] [stderr] Checking tempfile v3.2.0 [INFO] [stderr] Checking tracing v0.1.23 [INFO] [stderr] Checking tracing-subscriber v0.2.15 [INFO] [stderr] Checking chalk-ir v0.55.0 [INFO] [stderr] Checking ra_ap_base_db v0.0.37 [INFO] [stderr] Checking ra_ap_mbe v0.0.37 [INFO] [stderr] Checking tracing-tree v0.1.7 [INFO] [stderr] Checking ra_ap_proc_macro_api v0.0.37 [INFO] [stderr] Checking ra_ap_hir_expand v0.0.37 [INFO] [stderr] Checking ra_ap_project_model v0.0.37 [INFO] [stderr] Checking chalk-solve v0.55.0 [INFO] [stderr] Checking ra_ap_hir_def v0.0.37 [INFO] [stderr] Checking chalk-recursive v0.55.0 [INFO] [stderr] Checking ra_ap_hir_ty v0.0.37 [INFO] [stderr] Checking ra_ap_hir v0.0.37 [INFO] [stderr] Checking ra_ap_ide_db v0.0.37 [INFO] [stderr] Checking ra_ap_ssr v0.0.37 [INFO] [stderr] Checking ra_ap_completion v0.0.37 [INFO] [stderr] Checking ra_ap_assists v0.0.37 [INFO] [stdout] error[E0277]: the `?` operator can only be used in a closure that returns `Result` or `Option` (or another type that implements `FromResidual`) [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/ra_ap_assists-0.0.37/src/handlers/inline_local_variable.rs:75:17 [INFO] [stdout] | [INFO] [stdout] 73 | .map(|&FileReference { range, .. }| { [INFO] [stdout] | ______________- [INFO] [stdout] 74 | | let usage_node = [INFO] [stdout] 75 | | ctx.covering_node_for_range(range).ancestors().find_map(ast::PathExpr::cast)?; [INFO] [stdout] | | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ cannot use the `?` operator in a closure that returns `std::result::Result` [INFO] [stdout] 76 | | let usage_parent_option = usage_node.syntax().parent().and_then(ast::Expr::cast); [INFO] [stdout] ... | [INFO] [stdout] 106 | | )) [INFO] [stdout] 107 | | }) [INFO] [stdout] | |_________- this function should return `Result` or `Option` to accept `?` [INFO] [stdout] | [INFO] [stdout] = help: the trait `FromResidual>` is not implemented for `std::result::Result` [INFO] [stdout] = note: required by `from_residual` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0277]: the `?` operator can only be used in a function that returns `Result` or `Option` (or another type that implements `FromResidual`) [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/ra_ap_assists-0.0.37/src/handlers/inline_local_variable.rs:69:26 [INFO] [stdout] | [INFO] [stdout] 32 | / pub(crate) fn inline_local_variable(acc: &mut Assists, ctx: &AssistContext) -> Option<()> { [INFO] [stdout] 33 | | let let_stmt = ctx.find_node_at_offset::()?; [INFO] [stdout] 34 | | let bind_pat = match let_stmt.pat()? { [INFO] [stdout] 35 | | ast::Pat::IdentPat(pat) => pat, [INFO] [stdout] ... | [INFO] [stdout] 69 | | let wrap_in_parens = usages [INFO] [stdout] | |__________________________^ [INFO] [stdout] 70 | || .references [INFO] [stdout] 71 | || .values() [INFO] [stdout] 72 | || .flatten() [INFO] [stdout] ... || [INFO] [stdout] 107 | || }) [INFO] [stdout] 108 | || .collect::, _>>()?; [INFO] [stdout] | ||________________________________________^ cannot use the `?` operator in a function that returns `std::option::Option<()>` [INFO] [stdout] ... | [INFO] [stdout] 133 | | ) [INFO] [stdout] 134 | | } [INFO] [stdout] | |_- this function should return `Result` or `Option` to accept `?` [INFO] [stdout] | [INFO] [stdout] = help: the trait `FromResidual>` is not implemented for `std::option::Option<()>` [INFO] [stdout] = note: required by `from_residual` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 2 previous errors [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0277`. [INFO] [stdout] [INFO] [stderr] error: could not compile `ra_ap_assists` [INFO] [stderr] [INFO] [stderr] To learn more, run the command again with --verbose. [INFO] running `Command { std: "docker" "inspect" "4cabe64899ab8102614f8a84bde9bda6f85a2df56b14e30103fd750aa6c4579e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "4cabe64899ab8102614f8a84bde9bda6f85a2df56b14e30103fd750aa6c4579e", kill_on_drop: false }` [INFO] [stdout] 4cabe64899ab8102614f8a84bde9bda6f85a2df56b14e30103fd750aa6c4579e