[INFO] fetching crate context-allocator 0.2.3...
[INFO] testing context-allocator-0.2.3 against beta-2025-09-21 for beta-1.91-3
[INFO] extracting crate context-allocator 0.2.3 into /workspace/builds/worker-1-tc2/source
[INFO] started tweaking crates.io crate context-allocator 0.2.3
[INFO] finished tweaking crates.io crate context-allocator 0.2.3
[INFO] tweaked toml for crates.io crate context-allocator 0.2.3 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate context-allocator 0.2.3 on toolchain beta-2025-09-21
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "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] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 4 packages to latest compatible versions
[INFO] [stderr]       Adding likely v0.1.0 (available: v0.2.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "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-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 83cb66b5e5ef0dd00425ae66936ab691c0fb0225307f1e14796033b10e7d249d
[INFO] running `Command { std: "docker" "start" "-a" "83cb66b5e5ef0dd00425ae66936ab691c0fb0225307f1e14796033b10e7d249d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "83cb66b5e5ef0dd00425ae66936ab691c0fb0225307f1e14796033b10e7d249d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "83cb66b5e5ef0dd00425ae66936ab691c0fb0225307f1e14796033b10e7d249d", kill_on_drop: false }`
[INFO] [stdout] 83cb66b5e5ef0dd00425ae66936ab691c0fb0225307f1e14796033b10e7d249d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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=warn" "-e" "RUSTDOCFLAGS=--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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4948f35f60498686906b0083b5d3f893d991fc0b7e2c68cab6d8531213acd512
[INFO] running `Command { std: "docker" "start" "-a" "4948f35f60498686906b0083b5d3f893d991fc0b7e2c68cab6d8531213acd512", kill_on_drop: false }`
[INFO] [stderr]    Compiling either v1.15.0
[INFO] [stderr]    Compiling likely v0.1.0
[INFO] [stderr]    Compiling syscall-alt v0.0.14
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/syscall-alt-0.0.14/src/lib.rs:9:12
[INFO] [stdout]   |
[INFO] [stdout] 9 | #![feature(const_fn)]
[INFO] [stdout]   |            ^^^^^^^^ feature has been removed
[INFO] [stdout]   |
[INFO] [stdout]   = note: removed in 1.54.0; see <https://github.com/rust-lang/rust/pull/85109> for more information
[INFO] [stdout]   = note: split into finer-grained feature gates
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find macro `asm` in this scope
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/syscall-alt-0.0.14/src/syscalls/linux_like/x86_64/syscall0.rs:9:2
[INFO] [stdout]   |
[INFO] [stdout] 9 |     asm!
[INFO] [stdout]   |     ^^^
[INFO] [stdout]   |
[INFO] [stdout] help: consider importing this macro
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/syscall-alt-0.0.14/src/syscalls/linux_like/x86_64/mod.rs:5:1
[INFO] [stdout]   |
[INFO] [stdout] 5 + use core::arch::asm;
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find macro `asm` in this scope
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/syscall-alt-0.0.14/src/syscalls/linux_like/x86_64/syscall1.rs:9:2
[INFO] [stdout]   |
[INFO] [stdout] 9 |     asm!
[INFO] [stdout]   |     ^^^
[INFO] [stdout]   |
[INFO] [stdout] help: consider importing this macro
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/syscall-alt-0.0.14/src/syscalls/linux_like/x86_64/mod.rs:5:1
[INFO] [stdout]   |
[INFO] [stdout] 5 + use core::arch::asm;
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find macro `asm` in this scope
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/syscall-alt-0.0.14/src/syscalls/linux_like/x86_64/syscall2.rs:9:2
[INFO] [stdout]   |
[INFO] [stdout] 9 |     asm!
[INFO] [stdout]   |     ^^^
[INFO] [stdout]   |
[INFO] [stdout] help: consider importing this macro
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/syscall-alt-0.0.14/src/syscalls/linux_like/x86_64/mod.rs:5:1
[INFO] [stdout]   |
[INFO] [stdout] 5 + use core::arch::asm;
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find macro `asm` in this scope
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/syscall-alt-0.0.14/src/syscalls/linux_like/x86_64/syscall3.rs:9:2
[INFO] [stdout]   |
[INFO] [stdout] 9 |     asm!
[INFO] [stdout]   |     ^^^
[INFO] [stdout]   |
[INFO] [stdout] help: consider importing this macro
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/syscall-alt-0.0.14/src/syscalls/linux_like/x86_64/mod.rs:5:1
[INFO] [stdout]   |
[INFO] [stdout] 5 + use core::arch::asm;
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find macro `asm` in this scope
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/syscall-alt-0.0.14/src/syscalls/linux_like/x86_64/syscall4.rs:9:2
[INFO] [stdout]   |
[INFO] [stdout] 9 |     asm!
[INFO] [stdout]   |     ^^^
[INFO] [stdout]   |
[INFO] [stdout] help: consider importing this macro
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/syscall-alt-0.0.14/src/syscalls/linux_like/x86_64/mod.rs:5:1
[INFO] [stdout]   |
[INFO] [stdout] 5 + use core::arch::asm;
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find macro `asm` in this scope
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/syscall-alt-0.0.14/src/syscalls/linux_like/x86_64/syscall5.rs:9:2
[INFO] [stdout]   |
[INFO] [stdout] 9 |     asm!
[INFO] [stdout]   |     ^^^
[INFO] [stdout]   |
[INFO] [stdout] help: consider importing this macro
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/syscall-alt-0.0.14/src/syscalls/linux_like/x86_64/mod.rs:5:1
[INFO] [stdout]   |
[INFO] [stdout] 5 + use core::arch::asm;
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find macro `asm` in this scope
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/syscall-alt-0.0.14/src/syscalls/linux_like/x86_64/syscall6.rs:9:2
[INFO] [stdout]   |
[INFO] [stdout] 9 |     asm!
[INFO] [stdout]   |     ^^^
[INFO] [stdout]   |
[INFO] [stdout] help: consider importing this macro
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/syscall-alt-0.0.14/src/syscalls/linux_like/x86_64/mod.rs:5:1
[INFO] [stdout]   |
[INFO] [stdout] 5 + use core::arch::asm;
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/syscall-alt-0.0.14/src/lib.rs:7:1
[INFO] [stdout]   |
[INFO] [stdout] 7 | #![feature(asm)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/syscall-alt-0.0.14/src/lib.rs:8:1
[INFO] [stdout]   |
[INFO] [stdout] 8 | #![feature(associated_consts)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove the attribute
[INFO] [stdout]   |
[INFO] [stdout]   = help: the feature `associated_consts` has been stable since `1.20.0` and no longer requires an attribute to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/syscall-alt-0.0.14/src/lib.rs:9:1
[INFO] [stdout]   |
[INFO] [stdout] 9 | #![feature(const_fn)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0554, E0557.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `syscall-alt` (lib) due to 11 previous errors
[INFO] running `Command { std: "docker" "inspect" "4948f35f60498686906b0083b5d3f893d991fc0b7e2c68cab6d8531213acd512", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4948f35f60498686906b0083b5d3f893d991fc0b7e2c68cab6d8531213acd512", kill_on_drop: false }`
[INFO] [stdout] 4948f35f60498686906b0083b5d3f893d991fc0b7e2c68cab6d8531213acd512