[INFO] fetching crate dync 0.5.7... [INFO] checking dync-0.5.7 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar [INFO] extracting crate dync 0.5.7 into /workspace/builds/worker-7-tc1/source [INFO] validating manifest of crates.io crate dync 0.5.7 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 dync 0.5.7 [INFO] finished tweaking crates.io crate dync 0.5.7 [INFO] tweaked toml for crates.io crate dync 0.5.7 written to /workspace/builds/worker-7-tc1/source/Cargo.toml [INFO] crate crates.io crate dync 0.5.7 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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded unicode-segmentation v1.10.1 [INFO] [stderr] Downloaded dync-derive v0.4.0 [INFO] [stderr] Downloaded rayon-core v1.12.0 [INFO] [stderr] Downloaded rayon v1.8.0 [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] a6d6041edbf00d1c283b5f1edf3b89efe6964d10ccfc26f75b5da756edfbd497 [INFO] running `Command { std: "docker" "start" "-a" "a6d6041edbf00d1c283b5f1edf3b89efe6964d10ccfc26f75b5da756edfbd497", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "a6d6041edbf00d1c283b5f1edf3b89efe6964d10ccfc26f75b5da756edfbd497", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a6d6041edbf00d1c283b5f1edf3b89efe6964d10ccfc26f75b5da756edfbd497", kill_on_drop: false }` [INFO] [stdout] a6d6041edbf00d1c283b5f1edf3b89efe6964d10ccfc26f75b5da756edfbd497 [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] a7ae4c61eac2c592d8218b1dcbec5399607782115e57bc952cd18eef4cf96591 [INFO] running `Command { std: "docker" "start" "-a" "a7ae4c61eac2c592d8218b1dcbec5399607782115e57bc952cd18eef4cf96591", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.69 [INFO] [stderr] Compiling memoffset v0.9.0 [INFO] [stderr] Compiling serde v1.0.190 [INFO] [stderr] Compiling crossbeam-utils v0.8.16 [INFO] [stderr] Compiling crossbeam-epoch v0.9.15 [INFO] [stderr] Compiling libc v0.2.149 [INFO] [stderr] Compiling num-traits v0.2.17 [INFO] [stderr] Compiling serde_json v1.0.108 [INFO] [stderr] Compiling rayon-core v1.12.0 [INFO] [stderr] Checking either v1.9.0 [INFO] [stderr] Compiling unicode-segmentation v1.10.1 [INFO] [stderr] Checking regex-syntax v0.8.2 [INFO] [stderr] Checking csv-core v0.1.11 [INFO] [stderr] Checking textwrap v0.11.0 [INFO] [stderr] Checking itertools v0.10.5 [INFO] [stderr] Checking crossbeam-deque v0.8.3 [INFO] [stderr] Checking getrandom v0.2.10 [INFO] [stderr] Compiling quote v1.0.33 [INFO] [stderr] Checking rand_core v0.6.4 [INFO] [stderr] Compiling syn v1.0.109 [INFO] [stderr] Compiling syn v2.0.38 [INFO] [stderr] Compiling heck v0.3.3 [INFO] [stderr] Compiling lazy_static v1.4.0 [INFO] [stderr] Checking half v1.8.2 [INFO] [stderr] Checking rayon v1.8.0 [INFO] [stderr] Checking rand_chacha v0.3.1 [INFO] [stderr] Checking clap v2.34.0 [INFO] [stderr] Checking regex-automata v0.4.3 [INFO] [stderr] Checking plotters v0.3.5 [INFO] [stderr] Checking criterion-plot v0.4.5 [INFO] [stderr] Checking walkdir v2.4.0 [INFO] [stderr] Checking atty v0.2.14 [INFO] [stderr] Checking downcast-rs v1.2.0 [INFO] [stderr] Checking rand v0.8.5 [INFO] [stderr] Checking serde_cbor v0.11.2 [INFO] [stderr] Checking csv v1.3.0 [INFO] [stderr] Checking regex v1.10.2 [INFO] [stderr] Checking tinytemplate v1.2.1 [INFO] [stderr] Compiling dync-derive v0.4.0 [INFO] [stderr] Compiling serde_derive v1.0.190 [INFO] [stderr] Checking dync v0.5.7 (/opt/rustwide/workdir) [INFO] [stdout] warning: the item `CopyElem` is imported redundantly [INFO] [stdout] --> src/copy_value.rs:7:5 [INFO] [stdout] | [INFO] [stdout] 5 | use crate::elem::*; [INFO] [stdout] | -------------- the item `CopyElem` is already imported here [INFO] [stdout] 6 | use crate::vtable::*; [INFO] [stdout] 7 | use crate::CopyElem; [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated functions `rc_into_rc_bytes`, `rc_from_rc_bytes`, `arc_into_arc_bytes`, and `arc_from_arc_bytes` are never used [INFO] [stdout] --> src/bytes.rs:107:8 [INFO] [stdout] | [INFO] [stdout] 16 | pub(crate) trait Bytes [INFO] [stdout] | ----- associated functions in this trait [INFO] [stdout] ... [INFO] [stdout] 107 | fn rc_into_rc_bytes(rc: Rc) -> Rc<[MaybeUninit]> { [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 115 | unsafe fn rc_from_rc_bytes(rc: Rc<[MaybeUninit]>) -> Rc { [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 120 | fn arc_into_arc_bytes(arc: Arc) -> Arc<[MaybeUninit]> { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 128 | unsafe fn arc_from_arc_bytes(arc: Arc<[MaybeUninit]>) -> Arc { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking criterion v0.3.6 [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> tests/soundness.rs:6:19 [INFO] [stdout] | [INFO] [stdout] 6 | struct LargeAlign(u8); [INFO] [stdout] | ---------- ^^ [INFO] [stdout] | | [INFO] [stdout] | field in this struct [INFO] [stdout] | [INFO] [stdout] = note: `LargeAlign` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [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] 6 | struct LargeAlign(()); [INFO] [stdout] | ~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait `HTValue` is never used [INFO] [stdout] --> examples/cache.rs:25:11 [INFO] [stdout] | [INFO] [stdout] 25 | trait HTValue: Clone + PartialEq + Eq + std::hash::Hash + std::fmt::Debug {} [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `CopyElem` is imported redundantly [INFO] [stdout] --> src/copy_value.rs:7:5 [INFO] [stdout] | [INFO] [stdout] 5 | use crate::elem::*; [INFO] [stdout] | -------------- the item `CopyElem` is already imported here [INFO] [stdout] 6 | use crate::vtable::*; [INFO] [stdout] 7 | use crate::CopyElem; [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated functions `rc_into_rc_bytes`, `rc_from_rc_bytes`, `arc_into_arc_bytes`, and `arc_from_arc_bytes` are never used [INFO] [stdout] --> src/bytes.rs:107:8 [INFO] [stdout] | [INFO] [stdout] 16 | pub(crate) trait Bytes [INFO] [stdout] | ----- associated functions in this trait [INFO] [stdout] ... [INFO] [stdout] 107 | fn rc_into_rc_bytes(rc: Rc) -> Rc<[MaybeUninit]> { [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 115 | unsafe fn rc_from_rc_bytes(rc: Rc<[MaybeUninit]>) -> Rc { [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 120 | fn arc_into_arc_bytes(arc: Arc) -> Arc<[MaybeUninit]> { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 128 | unsafe fn arc_from_arc_bytes(arc: Arc<[MaybeUninit]>) -> Arc { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 33.14s [INFO] running `Command { std: "docker" "inspect" "a7ae4c61eac2c592d8218b1dcbec5399607782115e57bc952cd18eef4cf96591", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a7ae4c61eac2c592d8218b1dcbec5399607782115e57bc952cd18eef4cf96591", kill_on_drop: false }` [INFO] [stdout] a7ae4c61eac2c592d8218b1dcbec5399607782115e57bc952cd18eef4cf96591