[INFO] fetching crate redox_syscall 0.2.8...
[INFO] checking redox_syscall-0.2.8 against master#a5f164faad4a2fed606b8160fd7ecd2d5cbba381 for pr-84920
[INFO] extracting crate redox_syscall 0.2.8 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate redox_syscall 0.2.8 on toolchain a5f164faad4a2fed606b8160fd7ecd2d5cbba381
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate redox_syscall 0.2.8
[INFO] finished tweaking crates.io crate redox_syscall 0.2.8
[INFO] tweaked toml for crates.io crate redox_syscall 0.2.8 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "fetch" "--locked" "--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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "metadata" "--no-deps" "--format-version=1", 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] 8e805cfb411c8a2c298c790fbdcdfd8b62606eed0f67ba7b7e10baabf84eb96e
[INFO] running `Command { std: "docker" "start" "-a" "8e805cfb411c8a2c298c790fbdcdfd8b62606eed0f67ba7b7e10baabf84eb96e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8e805cfb411c8a2c298c790fbdcdfd8b62606eed0f67ba7b7e10baabf84eb96e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8e805cfb411c8a2c298c790fbdcdfd8b62606eed0f67ba7b7e10baabf84eb96e", kill_on_drop: false }`
[INFO] [stdout] 8e805cfb411c8a2c298c790fbdcdfd8b62606eed0f67ba7b7e10baabf84eb96e
[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=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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1ae31852386f69b90b56c085a92f705f32d94768141aa390eb7cfb9805171d52
[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" "1ae31852386f69b90b56c085a92f705f32d94768141aa390eb7cfb9805171d52", kill_on_drop: false }`
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]     Checking redox_syscall v0.2.8 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0658]: trait bounds other than `Sized` on const fn parameters are unstable
[INFO] [stdout]   --> src/io/io.rs:29:6
[INFO] [stdout]    |
[INFO] [stdout] 29 | impl<I: Io> ReadOnly<I> {
[INFO] [stdout]    |      ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #57563 <https://github.com/rust-lang/rust/issues/57563> for more information
[INFO] [stdout]    = help: add `#![feature(const_fn_trait_bound)]` to the crate attributes to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: trait bounds other than `Sized` on const fn parameters are unstable
[INFO] [stdout]   --> src/io/io.rs:51:6
[INFO] [stdout]    |
[INFO] [stdout] 51 | impl<I: Io> WriteOnly<I> {
[INFO] [stdout]    |      ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #57563 <https://github.com/rust-lang/rust/issues/57563> for more information
[INFO] [stdout]    = help: add `#![feature(const_fn_trait_bound)]` to the crate attributes to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: reference to packed field is unaligned
[INFO] [stdout]   --> src/io/mmio.rs:39:32
[INFO] [stdout]    |
[INFO] [stdout] 39 |         unsafe { read_volatile(self.value.as_ptr()) }
[INFO] [stdout]    |                                ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unaligned_references)]` 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 a future release!
[INFO] [stdout]    = note: for more information, see issue #82523 <https://github.com/rust-lang/rust/issues/82523>
[INFO] [stdout]    = note: fields of packed structs are not properly aligned, and creating a misaligned reference is undefined behavior (even if that reference is never dereferenced)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: reference to packed field is unaligned
[INFO] [stdout]   --> src/io/mmio.rs:43:33
[INFO] [stdout]    |
[INFO] [stdout] 43 |         unsafe { write_volatile(self.value.as_mut_ptr(), value) };
[INFO] [stdout]    |                                 ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #82523 <https://github.com/rust-lang/rust/issues/82523>
[INFO] [stdout]    = note: fields of packed structs are not properly aligned, and creating a misaligned reference is undefined behavior (even if that reference is never dereferenced)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors; 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0658`.
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: trait bounds other than `Sized` on const fn parameters are unstable
[INFO] [stdout]   --> src/io/io.rs:29:6
[INFO] [stdout]    |
[INFO] [stdout] 29 | impl<I: Io> ReadOnly<I> {
[INFO] [stdout]    |      ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #57563 <https://github.com/rust-lang/rust/issues/57563> for more information
[INFO] [stdout]    = help: add `#![feature(const_fn_trait_bound)]` to the crate attributes to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `redox_syscall`
[INFO] [stdout] error[E0658]: trait bounds other than `Sized` on const fn parameters are unstable
[INFO] [stdout]   --> src/io/io.rs:51:6
[INFO] [stdout]    |
[INFO] [stdout] 51 | impl<I: Io> WriteOnly<I> {
[INFO] [stdout]    |      ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #57563 <https://github.com/rust-lang/rust/issues/57563> for more information
[INFO] [stdout]    = help: add `#![feature(const_fn_trait_bound)]` to the crate attributes to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] 
[INFO] [stdout] warning: reference to packed field is unaligned
[INFO] [stdout]   --> src/io/mmio.rs:39:32
[INFO] [stdout]    |
[INFO] [stdout] 39 |         unsafe { read_volatile(self.value.as_ptr()) }
[INFO] [stdout]    |                                ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unaligned_references)]` 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 a future release!
[INFO] [stdout]    = note: for more information, see issue #82523 <https://github.com/rust-lang/rust/issues/82523>
[INFO] [stdout]    = note: fields of packed structs are not properly aligned, and creating a misaligned reference is undefined behavior (even if that reference is never dereferenced)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stdout] warning: reference to packed field is unaligned
[INFO] [stdout]   --> src/io/mmio.rs:43:33
[INFO] [stdout]    |
[INFO] [stdout] 43 |         unsafe { write_volatile(self.value.as_mut_ptr(), value) };
[INFO] [stdout]    |                                 ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #82523 <https://github.com/rust-lang/rust/issues/82523>
[INFO] [stdout]    = note: fields of packed structs are not properly aligned, and creating a misaligned reference is undefined behavior (even if that reference is never dereferenced)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: aborting due to 2 previous errors; 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0658`.
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "1ae31852386f69b90b56c085a92f705f32d94768141aa390eb7cfb9805171d52", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1ae31852386f69b90b56c085a92f705f32d94768141aa390eb7cfb9805171d52", kill_on_drop: false }`
[INFO] [stdout] 1ae31852386f69b90b56c085a92f705f32d94768141aa390eb7cfb9805171d52