[INFO] crate redox_syscall 0.1.56 is already in cache
[INFO] testing redox_syscall-0.1.56 against 1.44.0 for beta-1.45-1
[INFO] extracting crate redox_syscall 0.1.56 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate redox_syscall 0.1.56 on toolchain 1.44.0
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate redox_syscall 0.1.56
[INFO] finished tweaking crates.io crate redox_syscall 0.1.56
[INFO] tweaked toml for crates.io crate redox_syscall 0.1.56 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.44.0" "build" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 359eed7154c78e431b3c1edf36008504dca4bef342d025c9750b53d57dd33ebe
[INFO] running `"docker" "start" "-a" "359eed7154c78e431b3c1edf36008504dca4bef342d025c9750b53d57dd33ebe"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling redox_syscall v0.1.56 (/opt/rustwide/workdir)
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stderr]  --> src/lib.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(asm)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stderr]  --> src/lib.rs:2:1
[INFO] [stderr]   |
[INFO] [stderr] 2 | #![feature(const_fn)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'asm': the syntax of asm! will change soon, use llvm_asm! to avoid breakage
[INFO] [stderr]   --> src/io/pio.rs:31:13
[INFO] [stderr]    |
[INFO] [stderr] 31 |             asm!("in $0, $1" : "={al}"(value) : "{dx}"(self.port) : "memory" : "intel", "volatile");
[INFO] [stderr]    |             ^^^ help: replace the use of the deprecated item: `llvm_asm`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'asm': the syntax of asm! will change soon, use llvm_asm! to avoid breakage
[INFO] [stderr]   --> src/io/pio.rs:40:13
[INFO] [stderr]    |
[INFO] [stderr] 40 |             asm!("out $1, $0" : : "{al}"(value), "{dx}"(self.port) : "memory" : "intel", "volatile");
[INFO] [stderr]    |             ^^^ help: replace the use of the deprecated item: `llvm_asm`
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'asm': the syntax of asm! will change soon, use llvm_asm! to avoid breakage
[INFO] [stderr]   --> src/io/pio.rs:54:13
[INFO] [stderr]    |
[INFO] [stderr] 54 |             asm!("in $0, $1" : "={ax}"(value) : "{dx}"(self.port) : "memory" : "intel", "volatile");
[INFO] [stderr]    |             ^^^ help: replace the use of the deprecated item: `llvm_asm`
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'asm': the syntax of asm! will change soon, use llvm_asm! to avoid breakage
[INFO] [stderr]   --> src/io/pio.rs:63:13
[INFO] [stderr]    |
[INFO] [stderr] 63 |             asm!("out $1, $0" : : "{ax}"(value), "{dx}"(self.port) : "memory" : "intel", "volatile");
[INFO] [stderr]    |             ^^^ help: replace the use of the deprecated item: `llvm_asm`
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'asm': the syntax of asm! will change soon, use llvm_asm! to avoid breakage
[INFO] [stderr]   --> src/io/pio.rs:77:13
[INFO] [stderr]    |
[INFO] [stderr] 77 |             asm!("in $0, $1" : "={eax}"(value) : "{dx}"(self.port) : "memory" : "intel", "volatile");
[INFO] [stderr]    |             ^^^ help: replace the use of the deprecated item: `llvm_asm`
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'asm': the syntax of asm! will change soon, use llvm_asm! to avoid breakage
[INFO] [stderr]   --> src/io/pio.rs:86:13
[INFO] [stderr]    |
[INFO] [stderr] 86 |             asm!("out $1, $0" : : "{eax}"(value), "{dx}"(self.port) : "memory" : "intel", "volatile");
[INFO] [stderr]    |             ^^^ help: replace the use of the deprecated item: `llvm_asm`
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'core::mem::uninitialized': use `mem::MaybeUninit` instead
[INFO] [stderr]  --> src/io/mmio.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use core::mem::uninitialized;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'core::mem::uninitialized': use `mem::MaybeUninit` instead
[INFO] [stderr]   --> src/io/mmio.rs:16:29
[INFO] [stderr]    |
[INFO] [stderr] 16 |             value: unsafe { uninitialized() }
[INFO] [stderr]    |                             ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 2 previous errors; 8 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0554`.
[INFO] [stderr] error: could not compile `redox_syscall`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "359eed7154c78e431b3c1edf36008504dca4bef342d025c9750b53d57dd33ebe"`
[INFO] running `"docker" "rm" "-f" "359eed7154c78e431b3c1edf36008504dca4bef342d025c9750b53d57dd33ebe"`
[INFO] [stdout] 359eed7154c78e431b3c1edf36008504dca4bef342d025c9750b53d57dd33ebe