[INFO] fetching crate usync 0.2.1... [INFO] checking usync-0.2.1 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar [INFO] extracting crate usync 0.2.1 into /workspace/builds/worker-7-tc1/source [INFO] validating manifest of crates.io crate usync 0.2.1 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 usync 0.2.1 [INFO] finished tweaking crates.io crate usync 0.2.1 [INFO] tweaked toml for crates.io crate usync 0.2.1 written to /workspace/builds/worker-7-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] [stderr] Updating crates.io index [INFO] [stderr] Locking 12 packages [INFO] [stderr] Adding wasi v0.11.0+wasi-snapshot-preview1 (latest: v0.13.0+wasi-0.2.0) [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-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] ded58466a6820921b2c9b59d7904336b47cf4e9cb7976a3c087b6f7f5fc692e5 [INFO] running `Command { std: "docker" "start" "-a" "ded58466a6820921b2c9b59d7904336b47cf4e9cb7976a3c087b6f7f5fc692e5", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "ded58466a6820921b2c9b59d7904336b47cf4e9cb7976a3c087b6f7f5fc692e5", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "ded58466a6820921b2c9b59d7904336b47cf4e9cb7976a3c087b6f7f5fc692e5", kill_on_drop: false }` [INFO] [stdout] ded58466a6820921b2c9b59d7904336b47cf4e9cb7976a3c087b6f7f5fc692e5 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] f9ff76a415ec930b7a5a0a67ceb9caee0d6a8f9f9545e2312764344b4d39a21b [INFO] running `Command { std: "docker" "start" "-a" "f9ff76a415ec930b7a5a0a67ceb9caee0d6a8f9f9545e2312764344b4d39a21b", kill_on_drop: false }` [INFO] [stderr] Compiling usync v0.2.1 (/opt/rustwide/workdir) [INFO] [stdout] warning: the item `drop` is imported redundantly [INFO] [stdout] --> src/once.rs:4:5 [INFO] [stdout] | [INFO] [stdout] 4 | mem::drop, [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:148:13 [INFO] [stdout] | [INFO] [stdout] = note: the item `drop` is already defined here [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `drop` is imported redundantly [INFO] [stdout] --> src/once.rs:4:5 [INFO] [stdout] | [INFO] [stdout] 4 | mem::drop, [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:148:13 [INFO] [stdout] | [INFO] [stdout] = note: the item `drop` is already defined here [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `fetch_add` is never used [INFO] [stdout] --> src/shared/strict_provenance.rs:48:8 [INFO] [stdout] | [INFO] [stdout] 47 | pub(crate) trait AtomicPtrRmw { [INFO] [stdout] | ------------ method in this trait [INFO] [stdout] 48 | fn fetch_add(&self, value: T, ordering: Ordering) -> T; [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: calls to `std::mem::drop` with a value that implements `Copy` does nothing [INFO] [stdout] --> src/shared/event.rs:69:9 [INFO] [stdout] | [INFO] [stdout] 69 | drop(self); [INFO] [stdout] | ^^^^^----^ [INFO] [stdout] | | [INFO] [stdout] | argument has type `Pin<&Event>` [INFO] [stdout] | [INFO] [stdout] = note: use `let _ = ...` to ignore the expression or result [INFO] [stdout] = note: `#[warn(dropping_copy_types)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing [INFO] [stdout] --> src/shared/parker.rs:91:13 [INFO] [stdout] | [INFO] [stdout] 91 | drop(self); [INFO] [stdout] | ^^^^^----^ [INFO] [stdout] | | [INFO] [stdout] | argument has type `&Parker` [INFO] [stdout] | [INFO] [stdout] = note: use `let _ = ...` to ignore the expression or result [INFO] [stdout] = note: `#[warn(dropping_references)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `fetch_add` is never used [INFO] [stdout] --> src/shared/strict_provenance.rs:48:8 [INFO] [stdout] | [INFO] [stdout] 47 | pub(crate) trait AtomicPtrRmw { [INFO] [stdout] | ------------ method in this trait [INFO] [stdout] 48 | fn fetch_add(&self, value: T, ordering: Ordering) -> T; [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: calls to `std::mem::drop` with a value that implements `Copy` does nothing [INFO] [stdout] --> src/shared/event.rs:69:9 [INFO] [stdout] | [INFO] [stdout] 69 | drop(self); [INFO] [stdout] | ^^^^^----^ [INFO] [stdout] | | [INFO] [stdout] | argument has type `Pin<&Event>` [INFO] [stdout] | [INFO] [stdout] = note: use `let _ = ...` to ignore the expression or result [INFO] [stdout] = note: `#[warn(dropping_copy_types)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing [INFO] [stdout] --> src/shared/parker.rs:91:13 [INFO] [stdout] | [INFO] [stdout] 91 | drop(self); [INFO] [stdout] | ^^^^^----^ [INFO] [stdout] | | [INFO] [stdout] | argument has type `&Parker` [INFO] [stdout] | [INFO] [stdout] = note: use `let _ = ...` to ignore the expression or result [INFO] [stdout] = note: `#[warn(dropping_references)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.54s [INFO] running `Command { std: "docker" "inspect" "f9ff76a415ec930b7a5a0a67ceb9caee0d6a8f9f9545e2312764344b4d39a21b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "f9ff76a415ec930b7a5a0a67ceb9caee0d6a8f9f9545e2312764344b4d39a21b", kill_on_drop: false }` [INFO] [stdout] f9ff76a415ec930b7a5a0a67ceb9caee0d6a8f9f9545e2312764344b4d39a21b [INFO] checking usync-0.2.1 against try#645bb72776a6a56a1a8f52631a44bd082b2ba509 for absurd-question-mark-desugar [INFO] extracting crate usync 0.2.1 into /workspace/builds/worker-7-tc2/source [INFO] validating manifest of crates.io crate usync 0.2.1 on toolchain 645bb72776a6a56a1a8f52631a44bd082b2ba509 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate usync 0.2.1 [INFO] finished tweaking crates.io crate usync 0.2.1 [INFO] tweaked toml for crates.io crate usync 0.2.1 written to /workspace/builds/worker-7-tc2/source/Cargo.toml [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [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" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] acde5b9f33f02e8add167d5d9dceedd4944624f40ada5385ae472e92a6867016 [INFO] running `Command { std: "docker" "start" "-a" "acde5b9f33f02e8add167d5d9dceedd4944624f40ada5385ae472e92a6867016", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "acde5b9f33f02e8add167d5d9dceedd4944624f40ada5385ae472e92a6867016", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "acde5b9f33f02e8add167d5d9dceedd4944624f40ada5385ae472e92a6867016", kill_on_drop: false }` [INFO] [stdout] acde5b9f33f02e8add167d5d9dceedd4944624f40ada5385ae472e92a6867016 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 4fddf8e37e9aa3f7b92a9082f0badb076fcd3752b21d16ef8e5531553cc18934 [INFO] running `Command { std: "docker" "start" "-a" "4fddf8e37e9aa3f7b92a9082f0badb076fcd3752b21d16ef8e5531553cc18934", kill_on_drop: false }` [INFO] [stderr] Compiling usync v0.2.1 (/opt/rustwide/workdir) [INFO] [stdout] warning: the item `drop` is imported redundantly [INFO] [stdout] --> src/once.rs:4:5 [INFO] [stdout] | [INFO] [stdout] 4 | mem::drop, [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] --> /rustc/645bb72776a6a56a1a8f52631a44bd082b2ba509/library/std/src/prelude/mod.rs:148:13 [INFO] [stdout] | [INFO] [stdout] = note: the item `drop` is already defined here [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `drop` is imported redundantly [INFO] [stdout] --> src/once.rs:4:5 [INFO] [stdout] | [INFO] [stdout] 4 | mem::drop, [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] --> /rustc/645bb72776a6a56a1a8f52631a44bd082b2ba509/library/std/src/prelude/mod.rs:148:13 [INFO] [stdout] | [INFO] [stdout] = note: the item `drop` is already defined here [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `fetch_add` is never used [INFO] [stdout] --> src/shared/strict_provenance.rs:48:8 [INFO] [stdout] | [INFO] [stdout] 47 | pub(crate) trait AtomicPtrRmw { [INFO] [stdout] | ------------ method in this trait [INFO] [stdout] 48 | fn fetch_add(&self, value: T, ordering: Ordering) -> T; [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: calls to `std::mem::drop` with a value that implements `Copy` does nothing [INFO] [stdout] --> src/shared/event.rs:69:9 [INFO] [stdout] | [INFO] [stdout] 69 | drop(self); [INFO] [stdout] | ^^^^^----^ [INFO] [stdout] | | [INFO] [stdout] | argument has type `Pin<&Event>` [INFO] [stdout] | [INFO] [stdout] = note: use `let _ = ...` to ignore the expression or result [INFO] [stdout] = note: `#[warn(dropping_copy_types)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing [INFO] [stdout] --> src/shared/parker.rs:91:13 [INFO] [stdout] | [INFO] [stdout] 91 | drop(self); [INFO] [stdout] | ^^^^^----^ [INFO] [stdout] | | [INFO] [stdout] | argument has type `&Parker` [INFO] [stdout] | [INFO] [stdout] = note: use `let _ = ...` to ignore the expression or result [INFO] [stdout] = note: `#[warn(dropping_references)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `fetch_add` is never used [INFO] [stdout] --> src/shared/strict_provenance.rs:48:8 [INFO] [stdout] | [INFO] [stdout] 47 | pub(crate) trait AtomicPtrRmw { [INFO] [stdout] | ------------ method in this trait [INFO] [stdout] 48 | fn fetch_add(&self, value: T, ordering: Ordering) -> T; [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: calls to `std::mem::drop` with a value that implements `Copy` does nothing [INFO] [stdout] --> src/shared/event.rs:69:9 [INFO] [stdout] | [INFO] [stdout] 69 | drop(self); [INFO] [stdout] | ^^^^^----^ [INFO] [stdout] | | [INFO] [stdout] | argument has type `Pin<&Event>` [INFO] [stdout] | [INFO] [stdout] = note: use `let _ = ...` to ignore the expression or result [INFO] [stdout] = note: `#[warn(dropping_copy_types)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing [INFO] [stdout] --> src/shared/parker.rs:91:13 [INFO] [stdout] | [INFO] [stdout] 91 | drop(self); [INFO] [stdout] | ^^^^^----^ [INFO] [stdout] | | [INFO] [stdout] | argument has type `&Parker` [INFO] [stdout] | [INFO] [stdout] = note: use `let _ = ...` to ignore the expression or result [INFO] [stdout] = note: `#[warn(dropping_references)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.84s [INFO] running `Command { std: "docker" "inspect" "4fddf8e37e9aa3f7b92a9082f0badb076fcd3752b21d16ef8e5531553cc18934", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "4fddf8e37e9aa3f7b92a9082f0badb076fcd3752b21d16ef8e5531553cc18934", kill_on_drop: false }` [INFO] [stdout] 4fddf8e37e9aa3f7b92a9082f0badb076fcd3752b21d16ef8e5531553cc18934