[INFO] fetching crate keytree 0.2.4... [INFO] checking keytree-0.2.4 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar [INFO] extracting crate keytree 0.2.4 into /workspace/builds/worker-4-tc1/source [INFO] validating manifest of crates.io crate keytree 0.2.4 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 keytree 0.2.4 [INFO] finished tweaking crates.io crate keytree 0.2.4 [INFO] tweaked toml for crates.io crate keytree 0.2.4 written to /workspace/builds/worker-4-tc1/source/Cargo.toml [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] f67977ec5c6bc1d76595543900fc62d5acf2df4e31999868806c173f2424b0ba [INFO] running `Command { std: "docker" "start" "-a" "f67977ec5c6bc1d76595543900fc62d5acf2df4e31999868806c173f2424b0ba", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "f67977ec5c6bc1d76595543900fc62d5acf2df4e31999868806c173f2424b0ba", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "f67977ec5c6bc1d76595543900fc62d5acf2df4e31999868806c173f2424b0ba", kill_on_drop: false }` [INFO] [stdout] f67977ec5c6bc1d76595543900fc62d5acf2df4e31999868806c173f2424b0ba [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 3c5234ba064fb8e7518ce17b13dc26bcf0e8630f792596b4c36c70fceb6e318c [INFO] running `Command { std: "docker" "start" "-a" "3c5234ba064fb8e7518ce17b13dc26bcf0e8630f792596b4c36c70fceb6e318c", kill_on_drop: false }` [INFO] [stderr] Checking keytree v0.2.4 (/opt/rustwide/workdir) [INFO] [stdout] warning: method `start_key` is never used [INFO] [stdout] --> src/lib.rs:166:8 [INFO] [stdout] | [INFO] [stdout] 164 | impl Token { [INFO] [stdout] | ---------- method in this implementation [INFO] [stdout] 165 | // Returns the index of the start character of the key in the data string. [INFO] [stdout] 166 | fn start_key(&self) -> usize { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `get` is never used [INFO] [stdout] --> src/lib.rs:374:8 [INFO] [stdout] | [INFO] [stdout] 366 | impl KeyMap { [INFO] [stdout] | ----------- method in this implementation [INFO] [stdout] ... [INFO] [stdout] 374 | fn get(&self, path: &UniquePath) -> Option { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/lib.rs:419:15 [INFO] [stdout] | [INFO] [stdout] 419 | EmptyIter(NonUniquePath), [INFO] [stdout] | --------- ^^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this variant [INFO] [stdout] | [INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field [INFO] [stdout] | [INFO] [stdout] 419 | EmptyIter(()), [INFO] [stdout] | ~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `get` is never used [INFO] [stdout] --> src/lib.rs:672:8 [INFO] [stdout] | [INFO] [stdout] 666 | impl KeyLen { [INFO] [stdout] | ----------- method in this implementation [INFO] [stdout] ... [INFO] [stdout] 672 | fn get(&self, path: &NonUniquePath) -> Option { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `ch_indent` is never read [INFO] [stdout] --> src/parser.rs:109:5 [INFO] [stdout] | [INFO] [stdout] 73 | pub struct BuildVars<'a> { [INFO] [stdout] | --------- field in this struct [INFO] [stdout] ... [INFO] [stdout] 109 | ch_indent: Option, [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `BuildVars` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `new_line` is never used [INFO] [stdout] --> src/parser.rs:153:8 [INFO] [stdout] | [INFO] [stdout] 129 | impl<'a> BuildVars<'a> { [INFO] [stdout] | ---------------------- method in this implementation [INFO] [stdout] ... [INFO] [stdout] 153 | fn new_line(&mut self, pos: usize) { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused borrow that must be used [INFO] [stdout] --> src/path.rs:520:9 [INFO] [stdout] | [INFO] [stdout] 520 | &self.s.hash(state); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ the borrow produces a value [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 520 | let _ = &self.s.hash(state); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 7 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `start_key` is never used [INFO] [stdout] --> src/lib.rs:166:8 [INFO] [stdout] | [INFO] [stdout] 164 | impl Token { [INFO] [stdout] | ---------- method in this implementation [INFO] [stdout] 165 | // Returns the index of the start character of the key in the data string. [INFO] [stdout] 166 | fn start_key(&self) -> usize { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `get` is never used [INFO] [stdout] --> src/lib.rs:374:8 [INFO] [stdout] | [INFO] [stdout] 366 | impl KeyMap { [INFO] [stdout] | ----------- method in this implementation [INFO] [stdout] ... [INFO] [stdout] 374 | fn get(&self, path: &UniquePath) -> Option { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/lib.rs:419:15 [INFO] [stdout] | [INFO] [stdout] 419 | EmptyIter(NonUniquePath), [INFO] [stdout] | --------- ^^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this variant [INFO] [stdout] | [INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field [INFO] [stdout] | [INFO] [stdout] 419 | EmptyIter(()), [INFO] [stdout] | ~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `get` is never used [INFO] [stdout] --> src/lib.rs:672:8 [INFO] [stdout] | [INFO] [stdout] 666 | impl KeyLen { [INFO] [stdout] | ----------- method in this implementation [INFO] [stdout] ... [INFO] [stdout] 672 | fn get(&self, path: &NonUniquePath) -> Option { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `ch_indent` is never read [INFO] [stdout] --> src/parser.rs:109:5 [INFO] [stdout] | [INFO] [stdout] 73 | pub struct BuildVars<'a> { [INFO] [stdout] | --------- field in this struct [INFO] [stdout] ... [INFO] [stdout] 109 | ch_indent: Option, [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `BuildVars` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `new_line` is never used [INFO] [stdout] --> src/parser.rs:153:8 [INFO] [stdout] | [INFO] [stdout] 129 | impl<'a> BuildVars<'a> { [INFO] [stdout] | ---------------------- method in this implementation [INFO] [stdout] ... [INFO] [stdout] 153 | fn new_line(&mut self, pos: usize) { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused borrow that must be used [INFO] [stdout] --> src/path.rs:520:9 [INFO] [stdout] | [INFO] [stdout] 520 | &self.s.hash(state); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ the borrow produces a value [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 520 | let _ = &self.s.hash(state); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 7 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.32s [INFO] running `Command { std: "docker" "inspect" "3c5234ba064fb8e7518ce17b13dc26bcf0e8630f792596b4c36c70fceb6e318c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "3c5234ba064fb8e7518ce17b13dc26bcf0e8630f792596b4c36c70fceb6e318c", kill_on_drop: false }` [INFO] [stdout] 3c5234ba064fb8e7518ce17b13dc26bcf0e8630f792596b4c36c70fceb6e318c