[INFO] fetching crate rs_lockfree 0.1.1...
[INFO] testing rs_lockfree-0.1.1 against 1.54.0 for beta-1.55-1
[INFO] extracting crate rs_lockfree 0.1.1 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate rs_lockfree 0.1.1 on toolchain 1.54.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rs_lockfree 0.1.1
[INFO] finished tweaking crates.io crate rs_lockfree 0.1.1
[INFO] tweaked toml for crates.io crate rs_lockfree 0.1.1 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8521e9654cbff0e775df679765158be61ccaf2943620c91250c50fc384e93a08
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "8521e9654cbff0e775df679765158be61ccaf2943620c91250c50fc384e93a08", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8521e9654cbff0e775df679765158be61ccaf2943620c91250c50fc384e93a08", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8521e9654cbff0e775df679765158be61ccaf2943620c91250c50fc384e93a08", kill_on_drop: false }`
[INFO] [stdout] 8521e9654cbff0e775df679765158be61ccaf2943620c91250c50fc384e93a08
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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=warn" "-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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] a8f17d550458a47ac4ab046189552316ee71de4fe523e64f174c2a40f09bf473
[INFO] running `Command { std: "docker" "start" "-a" "a8f17d550458a47ac4ab046189552316ee71de4fe523e64f174c2a40f09bf473", kill_on_drop: false }`
[INFO] [stderr]    Compiling rs_lockfree v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]   --> src/lib.rs:18:1
[INFO] [stdout]    |
[INFO] [stdout] 18 | #![feature(core_intrinsics)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]   --> src/lib.rs:19:1
[INFO] [stdout]    |
[INFO] [stdout] 19 | #![feature(raw)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/hazard_pointer.rs:296:32
[INFO] [stdout]     |
[INFO] [stdout] 296 |             &mut *node as &mut HazardNodeT,
[INFO] [stdout]     |                                ^^^^^^^^^^^ help: use `dyn`: `dyn HazardNodeT`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/hazard_pointer.rs:373:59
[INFO] [stdout]     |
[INFO] [stdout] 373 |         let obj = mem::transmute::<raw::TraitObject, &mut HazardNodeT>(trait_obj);
[INFO] [stdout]     |                                                           ^^^^^^^^^^^ help: use `dyn`: `dyn HazardNodeT`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/hazard_pointer.rs:374:35
[INFO] [stdout]     |
[INFO] [stdout] 374 |         Box::from_raw(obj as *mut HazardNodeT);
[INFO] [stdout]     |                                   ^^^^^^^^^^^ help: use `dyn`: `dyn HazardNodeT`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated module `std::raw`: use pointer metadata APIs instead https://github.com/rust-lang/rust/issues/81513
[INFO] [stdout]  --> src/hazard_pointer.rs:6:16
[INFO] [stdout]   |
[INFO] [stdout] 6 | use std::{mem, raw};
[INFO] [stdout]   |                ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated struct `std::raw::TraitObject`: use pointer metadata APIs instead https://github.com/rust-lang/rust/issues/81513
[INFO] [stdout]    --> src/hazard_pointer.rs:125:16
[INFO] [stdout]     |
[INFO] [stdout] 125 |     trait_obj: raw::TraitObject,
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated struct `std::raw::TraitObject`: use pointer metadata APIs instead https://github.com/rust-lang/rust/issues/81513
[INFO] [stdout]    --> src/hazard_pointer.rs:173:43
[INFO] [stdout]     |
[INFO] [stdout] 173 |     fn set_tait_obj(&mut self, trait_obj: raw::TraitObject) {
[INFO] [stdout]     |                                           ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated struct `std::raw::TraitObject`: use pointer metadata APIs instead https://github.com/rust-lang/rust/issues/81513
[INFO] [stdout]    --> src/hazard_pointer.rs:178:28
[INFO] [stdout]     |
[INFO] [stdout] 178 |     fn trait_obj(&self) -> raw::TraitObject {
[INFO] [stdout]     |                            ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated struct `std::raw::TraitObject`: use pointer metadata APIs instead https://github.com/rust-lang/rust/issues/81513
[INFO] [stdout]    --> src/hazard_pointer.rs:295:50
[INFO] [stdout]     |
[INFO] [stdout] 295 |         (*base).set_tait_obj(mem::transmute::<_, raw::TraitObject>(
[INFO] [stdout]     |                                                  ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated struct `std::raw::TraitObject`: use pointer metadata APIs instead https://github.com/rust-lang/rust/issues/81513
[INFO] [stdout]    --> src/hazard_pointer.rs:373:36
[INFO] [stdout]     |
[INFO] [stdout] 373 |         let obj = mem::transmute::<raw::TraitObject, &mut HazardNodeT>(trait_obj);
[INFO] [stdout]     |                                    ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::sync::atomic::spin_loop_hint`: use hint::spin_loop instead
[INFO] [stdout]    --> src/util.rs:125:5
[INFO] [stdout]     |
[INFO] [stdout] 125 |     atomic::spin_loop_hint();
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `T: Copy` is not satisfied
[INFO] [stdout]    --> src/util.rs:98:35
[INFO] [stdout]     |
[INFO] [stdout] 98  |         intrinsics::atomic_xadd::<T>(dst, src)
[INFO] [stdout]     |                                   ^ the trait `Copy` is not implemented for `T`
[INFO] [stdout]     |
[INFO] [stdout] help: consider restricting type parameter `T`
[INFO] [stdout]     |
[INFO] [stdout] 97  |     pub unsafe fn sync_fetch_and_add<T: std::marker::Copy>(dst: *mut T, src: T) -> T {
[INFO] [stdout]     |                                       ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors; 10 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0277, E0554.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0277`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rs_lockfree`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "a8f17d550458a47ac4ab046189552316ee71de4fe523e64f174c2a40f09bf473", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a8f17d550458a47ac4ab046189552316ee71de4fe523e64f174c2a40f09bf473", kill_on_drop: false }`
[INFO] [stdout] a8f17d550458a47ac4ab046189552316ee71de4fe523e64f174c2a40f09bf473
