[INFO] fetching crate sleigh-rs 0.1.5... [INFO] checking sleigh-rs-0.1.5 against try#23ffd2897cbb44320ca18dfe4d05dbacb37d55e0 for pr-115950 [INFO] extracting crate sleigh-rs 0.1.5 into /workspace/builds/worker-5-tc2/source [INFO] validating manifest of crates.io crate sleigh-rs 0.1.5 on toolchain 23ffd2897cbb44320ca18dfe4d05dbacb37d55e0 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+23ffd2897cbb44320ca18dfe4d05dbacb37d55e0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate sleigh-rs 0.1.5 [INFO] finished tweaking crates.io crate sleigh-rs 0.1.5 [INFO] tweaked toml for crates.io crate sleigh-rs 0.1.5 written to /workspace/builds/worker-5-tc2/source/Cargo.toml [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+23ffd2897cbb44320ca18dfe4d05dbacb37d55e0" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+23ffd2897cbb44320ca18dfe4d05dbacb37d55e0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:4f8da3c744d2da974e54ce020a79f4ad54313e914ebeaab8fc086f07e8d8b066" "/opt/rustwide/cargo-home/bin/cargo" "+23ffd2897cbb44320ca18dfe4d05dbacb37d55e0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] cb9196ca2a87adac1bb859bb26970e1e689184c3e7791a525243f43b3a423427 [INFO] running `Command { std: "docker" "start" "-a" "cb9196ca2a87adac1bb859bb26970e1e689184c3e7791a525243f43b3a423427", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "cb9196ca2a87adac1bb859bb26970e1e689184c3e7791a525243f43b3a423427", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "cb9196ca2a87adac1bb859bb26970e1e689184c3e7791a525243f43b3a423427", kill_on_drop: false }` [INFO] [stdout] cb9196ca2a87adac1bb859bb26970e1e689184c3e7791a525243f43b3a423427 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:4f8da3c744d2da974e54ce020a79f4ad54313e914ebeaab8fc086f07e8d8b066" "/opt/rustwide/cargo-home/bin/cargo" "+23ffd2897cbb44320ca18dfe4d05dbacb37d55e0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 93c27cf645c8b0064d21c6ed40b585d3cb1ba0ee4a431452b2cd49619e17665b [INFO] running `Command { std: "docker" "start" "-a" "93c27cf645c8b0064d21c6ed40b585d3cb1ba0ee4a431452b2cd49619e17665b", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.67 [INFO] [stderr] Compiling unicode-ident v1.0.12 [INFO] [stderr] Compiling thiserror v1.0.48 [INFO] [stderr] Checking minimal-lexical v0.2.1 [INFO] [stderr] Checking memchr v2.6.3 [INFO] [stderr] Checking nom v7.1.3 [INFO] [stderr] Compiling quote v1.0.33 [INFO] [stderr] Compiling syn v2.0.37 [INFO] [stderr] Compiling thiserror-impl v1.0.48 [INFO] [stderr] Checking sleigh-rs v0.1.5 (/opt/rustwide/workdir) [INFO] [stdout] error[E0502]: cannot borrow `pattern` as mutable because it is also borrowed as immutable [INFO] [stdout] --> src/semantic/inner/table/mod.rs:534:27 [INFO] [stdout] | [INFO] [stdout] 531 | pattern [INFO] [stdout] | ------- [INFO] [stdout] | | [INFO] [stdout] | _________immutable borrow occurs here [INFO] [stdout] | | [INFO] [stdout] 532 | | .unresolved_token_fields(self) [INFO] [stdout] 533 | | .into_iter() [INFO] [stdout] | |________________________- a temporary with access to the immutable borrow is created here ... [INFO] [stdout] 534 | .try_for_each(|(token_field, location)| { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^ mutable borrow occurs here [INFO] [stdout] 535 | let token_produced = [INFO] [stdout] 536 | pattern.produce_token_field(self, token_field).map_err( [INFO] [stdout] | ------- second borrow occurs due to use of `pattern` in closure [INFO] [stdout] ... [INFO] [stdout] 548 | })?; [INFO] [stdout] | - ... and the immutable borrow might be used here, when that temporary is dropped and runs the destructor for type `impl Iterator` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0502]: cannot borrow `pattern` as mutable because it is also borrowed as immutable [INFO] [stdout] --> src/semantic/inner/table/mod.rs:534:27 [INFO] [stdout] | [INFO] [stdout] 531 | pattern [INFO] [stdout] | ------- [INFO] [stdout] | | [INFO] [stdout] | _________immutable borrow occurs here [INFO] [stdout] | | [INFO] [stdout] 532 | | .unresolved_token_fields(self) [INFO] [stdout] 533 | | .into_iter() [INFO] [stdout] | |________________________- a temporary with access to the immutable borrow is created here ... [INFO] [stdout] 534 | .try_for_each(|(token_field, location)| { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^ mutable borrow occurs here [INFO] [stdout] 535 | let token_produced = [INFO] [stdout] 536 | pattern.produce_token_field(self, token_field).map_err( [INFO] [stdout] | ------- second borrow occurs due to use of `pattern` in closure [INFO] [stdout] ... [INFO] [stdout] 548 | })?; [INFO] [stdout] | - ... and the immutable borrow might be used here, when that temporary is dropped and runs the destructor for type `impl Iterator` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to previous error [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0502`. [INFO] [stdout] [INFO] [stderr] error: could not compile `sleigh-rs` (lib test) due to 2 previous errors [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stdout] error: aborting due to previous error [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0502`. [INFO] [stdout] [INFO] [stderr] error: could not compile `sleigh-rs` (lib) due to 2 previous errors [INFO] running `Command { std: "docker" "inspect" "93c27cf645c8b0064d21c6ed40b585d3cb1ba0ee4a431452b2cd49619e17665b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "93c27cf645c8b0064d21c6ed40b585d3cb1ba0ee4a431452b2cd49619e17665b", kill_on_drop: false }` [INFO] [stdout] 93c27cf645c8b0064d21c6ed40b585d3cb1ba0ee4a431452b2cd49619e17665b