[INFO] fetching crate screwsat 2.1.5... [INFO] checking screwsat-2.1.5 against master#cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c for pr-143170 [INFO] extracting crate screwsat 2.1.5 into /workspace/builds/worker-4-tc1/source [INFO] started tweaking crates.io crate screwsat 2.1.5 [INFO] finished tweaking crates.io crate screwsat 2.1.5 [INFO] tweaked toml for crates.io crate screwsat 2.1.5 written to /workspace/builds/worker-4-tc1/source/Cargo.toml [INFO] validating manifest of crates.io crate screwsat 2.1.5 on toolchain cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate crates.io crate screwsat 2.1.5 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" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] c43c59da9f1fca1d2d8b7e2c765fa99f88027fe4eb0862724c54706a5f5e331f [INFO] running `Command { std: "docker" "start" "-a" "c43c59da9f1fca1d2d8b7e2c765fa99f88027fe4eb0862724c54706a5f5e331f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "c43c59da9f1fca1d2d8b7e2c765fa99f88027fe4eb0862724c54706a5f5e331f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "c43c59da9f1fca1d2d8b7e2c765fa99f88027fe4eb0862724c54706a5f5e331f", kill_on_drop: false }` [INFO] [stdout] c43c59da9f1fca1d2d8b7e2c765fa99f88027fe4eb0862724c54706a5f5e331f [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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] dc96e2c88dffa122ba94a4192a8c39bd6d27aba09e374eb3daaef0fc548e8dde [INFO] running `Command { std: "docker" "start" "-a" "dc96e2c88dffa122ba94a4192a8c39bd6d27aba09e374eb3daaef0fc548e8dde", kill_on_drop: false }` [INFO] [stderr] Checking walkdir v2.3.1 [INFO] [stderr] Checking screwsat v2.1.5 (/opt/rustwide/workdir) [INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing [INFO] [stdout] --> src/lib.rs:76:17 [INFO] [stdout] | [INFO] [stdout] 76 | fn iter(&self) -> ClauseIter { [INFO] [stdout] | ^^^^^ ---------- the lifetime gets resolved as `'_` [INFO] [stdout] | | [INFO] [stdout] | this lifetime flows to the output [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default [INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths [INFO] [stdout] | [INFO] [stdout] 76 | fn iter(&self) -> ClauseIter<'_> { [INFO] [stdout] | ++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing [INFO] [stdout] --> src/lib.rs:116:17 [INFO] [stdout] | [INFO] [stdout] 116 | fn iter(&self) -> ClauseIter { [INFO] [stdout] | ^^^^^ ---------- the lifetime gets resolved as `'_` [INFO] [stdout] | | [INFO] [stdout] | this lifetime flows to the output [INFO] [stdout] | [INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths [INFO] [stdout] | [INFO] [stdout] 116 | fn iter(&self) -> ClauseIter<'_> { [INFO] [stdout] | ++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing [INFO] [stdout] --> src/lib.rs:120:21 [INFO] [stdout] | [INFO] [stdout] 120 | fn iter_mut(&mut self) -> ClauseIterMut { [INFO] [stdout] | ^^^^^^^^^ ------------- the lifetime gets resolved as `'_` [INFO] [stdout] | | [INFO] [stdout] | this lifetime flows to the output [INFO] [stdout] | [INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths [INFO] [stdout] | [INFO] [stdout] 120 | fn iter_mut(&mut self) -> ClauseIterMut<'_> { [INFO] [stdout] | ++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing [INFO] [stdout] --> src/lib.rs:139:30 [INFO] [stdout] | [INFO] [stdout] 139 | pub fn as_clause_ref(&mut self) -> ClauseRef { [INFO] [stdout] | ^^^^^^^^^ --------- the lifetime gets resolved as `'_` [INFO] [stdout] | | [INFO] [stdout] | this lifetime flows to the output [INFO] [stdout] | [INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths [INFO] [stdout] | [INFO] [stdout] 139 | pub fn as_clause_ref(&mut self) -> ClauseRef<'_> { [INFO] [stdout] | ++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing [INFO] [stdout] --> src/lib.rs:436:16 [INFO] [stdout] | [INFO] [stdout] 436 | fn get(&self, cref: CRef) -> ClauseRef { [INFO] [stdout] | ^^^^^ --------- the lifetime gets resolved as `'_` [INFO] [stdout] | | [INFO] [stdout] | this lifetime flows to the output [INFO] [stdout] | [INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths [INFO] [stdout] | [INFO] [stdout] 436 | fn get(&self, cref: CRef) -> ClauseRef<'_> { [INFO] [stdout] | ++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing [INFO] [stdout] --> src/lib.rs:453:20 [INFO] [stdout] | [INFO] [stdout] 453 | fn get_mut(&mut self, cref: CRef) -> ClauseMut { [INFO] [stdout] | ^^^^^^^^^ --------- the lifetime gets resolved as `'_` [INFO] [stdout] | | [INFO] [stdout] | this lifetime flows to the output [INFO] [stdout] | [INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths [INFO] [stdout] | [INFO] [stdout] 453 | fn get_mut(&mut self, cref: CRef) -> ClauseMut<'_> { [INFO] [stdout] | ++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused borrow that must be used [INFO] [stdout] --> src/lib.rs:1322:38 [INFO] [stdout] | [INFO] [stdout] 1322 | ... unsafe { &mut (*watchers_ptr)[!clause[1]].push(w) }; [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] 1322 | unsafe { let _ = &mut (*watchers_ptr)[!clause[1]].push(w); }; [INFO] [stdout] | +++++++ + [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: implicit autoref creates a reference to the dereference of a raw pointer [INFO] [stdout] --> src/lib.rs:1322:43 [INFO] [stdout] | [INFO] [stdout] 1322 | ... unsafe { &mut (*watchers_ptr)[!clause[1]].push(w) }; [INFO] [stdout] | ^^------------^^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | this raw pointer has type `*mut Vec>` [INFO] [stdout] | [INFO] [stdout] = note: creating a reference requires the pointer target to be valid and imposes aliasing requirements [INFO] [stdout] note: autoref is being applied to this expression, resulting in: `&mut Vec>` [INFO] [stdout] --> src/lib.rs:1322:43 [INFO] [stdout] | [INFO] [stdout] 1322 | ... unsafe { &mut (*watchers_ptr)[!clause[1]].push(w) }; [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] = note: `#[deny(dangerous_implicit_autorefs)]` on by default [INFO] [stdout] help: try using a raw pointer method instead; or if this reference is intentional, make it explicit [INFO] [stdout] | [INFO] [stdout] 1322 | unsafe { &mut (&mut (*watchers_ptr))[!clause[1]].push(w) }; [INFO] [stdout] | +++++ + [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `screwsat` (lib) due to 1 previous error; 7 warnings emitted [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing [INFO] [stdout] --> src/lib.rs:76:17 [INFO] [stdout] | [INFO] [stdout] 76 | fn iter(&self) -> ClauseIter { [INFO] [stdout] | ^^^^^ ---------- the lifetime gets resolved as `'_` [INFO] [stdout] | | [INFO] [stdout] | this lifetime flows to the output [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default [INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths [INFO] [stdout] | [INFO] [stdout] 76 | fn iter(&self) -> ClauseIter<'_> { [INFO] [stdout] | ++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing [INFO] [stdout] --> src/lib.rs:116:17 [INFO] [stdout] | [INFO] [stdout] 116 | fn iter(&self) -> ClauseIter { [INFO] [stdout] | ^^^^^ ---------- the lifetime gets resolved as `'_` [INFO] [stdout] | | [INFO] [stdout] | this lifetime flows to the output [INFO] [stdout] | [INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths [INFO] [stdout] | [INFO] [stdout] 116 | fn iter(&self) -> ClauseIter<'_> { [INFO] [stdout] | ++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing [INFO] [stdout] --> src/lib.rs:120:21 [INFO] [stdout] | [INFO] [stdout] 120 | fn iter_mut(&mut self) -> ClauseIterMut { [INFO] [stdout] | ^^^^^^^^^ ------------- the lifetime gets resolved as `'_` [INFO] [stdout] | | [INFO] [stdout] | this lifetime flows to the output [INFO] [stdout] | [INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths [INFO] [stdout] | [INFO] [stdout] 120 | fn iter_mut(&mut self) -> ClauseIterMut<'_> { [INFO] [stdout] | ++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing [INFO] [stdout] --> src/lib.rs:139:30 [INFO] [stdout] | [INFO] [stdout] 139 | pub fn as_clause_ref(&mut self) -> ClauseRef { [INFO] [stdout] | ^^^^^^^^^ --------- the lifetime gets resolved as `'_` [INFO] [stdout] | | [INFO] [stdout] | this lifetime flows to the output [INFO] [stdout] | [INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths [INFO] [stdout] | [INFO] [stdout] 139 | pub fn as_clause_ref(&mut self) -> ClauseRef<'_> { [INFO] [stdout] | ++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing [INFO] [stdout] --> src/lib.rs:436:16 [INFO] [stdout] | [INFO] [stdout] 436 | fn get(&self, cref: CRef) -> ClauseRef { [INFO] [stdout] | ^^^^^ --------- the lifetime gets resolved as `'_` [INFO] [stdout] | | [INFO] [stdout] | this lifetime flows to the output [INFO] [stdout] | [INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths [INFO] [stdout] | [INFO] [stdout] 436 | fn get(&self, cref: CRef) -> ClauseRef<'_> { [INFO] [stdout] | ++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing [INFO] [stdout] --> src/lib.rs:453:20 [INFO] [stdout] | [INFO] [stdout] 453 | fn get_mut(&mut self, cref: CRef) -> ClauseMut { [INFO] [stdout] | ^^^^^^^^^ --------- the lifetime gets resolved as `'_` [INFO] [stdout] | | [INFO] [stdout] | this lifetime flows to the output [INFO] [stdout] | [INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths [INFO] [stdout] | [INFO] [stdout] 453 | fn get_mut(&mut self, cref: CRef) -> ClauseMut<'_> { [INFO] [stdout] | ++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused borrow that must be used [INFO] [stdout] --> src/lib.rs:1322:38 [INFO] [stdout] | [INFO] [stdout] 1322 | ... unsafe { &mut (*watchers_ptr)[!clause[1]].push(w) }; [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] 1322 | unsafe { let _ = &mut (*watchers_ptr)[!clause[1]].push(w); }; [INFO] [stdout] | +++++++ + [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: implicit autoref creates a reference to the dereference of a raw pointer [INFO] [stdout] --> src/lib.rs:1322:43 [INFO] [stdout] | [INFO] [stdout] 1322 | ... unsafe { &mut (*watchers_ptr)[!clause[1]].push(w) }; [INFO] [stdout] | ^^------------^^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | this raw pointer has type `*mut Vec>` [INFO] [stdout] | [INFO] [stdout] = note: creating a reference requires the pointer target to be valid and imposes aliasing requirements [INFO] [stdout] note: autoref is being applied to this expression, resulting in: `&mut Vec>` [INFO] [stdout] --> src/lib.rs:1322:43 [INFO] [stdout] | [INFO] [stdout] 1322 | ... unsafe { &mut (*watchers_ptr)[!clause[1]].push(w) }; [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] = note: `#[deny(dangerous_implicit_autorefs)]` on by default [INFO] [stdout] help: try using a raw pointer method instead; or if this reference is intentional, make it explicit [INFO] [stdout] | [INFO] [stdout] 1322 | unsafe { &mut (&mut (*watchers_ptr))[!clause[1]].push(w) }; [INFO] [stdout] | +++++ + [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `screwsat` (lib test) due to 1 previous error; 7 warnings emitted [INFO] running `Command { std: "docker" "inspect" "dc96e2c88dffa122ba94a4192a8c39bd6d27aba09e374eb3daaef0fc548e8dde", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "dc96e2c88dffa122ba94a4192a8c39bd6d27aba09e374eb3daaef0fc548e8dde", kill_on_drop: false }` [INFO] [stdout] dc96e2c88dffa122ba94a4192a8c39bd6d27aba09e374eb3daaef0fc548e8dde