[INFO] fetching crate context-allocator 0.2.3...
[INFO] checking context-allocator-0.2.3 against try#998b6603a58e47f42ccce7a67943234e96b6839e for pr-143170
[INFO] extracting crate context-allocator 0.2.3 into /workspace/builds/worker-2-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-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate context-allocator 0.2.3 on toolchain 998b6603a58e47f42ccce7a67943234e96b6839e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "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" "+998b6603a58e47f42ccce7a67943234e96b6839e" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[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" "+998b6603a58e47f42ccce7a67943234e96b6839e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] aee2b21ac4320fa0b505313804c2c34b5a622e1f30cb44da3c576f9e09e0f41a
[INFO] running `Command { std: "docker" "start" "-a" "aee2b21ac4320fa0b505313804c2c34b5a622e1f30cb44da3c576f9e09e0f41a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "aee2b21ac4320fa0b505313804c2c34b5a622e1f30cb44da3c576f9e09e0f41a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aee2b21ac4320fa0b505313804c2c34b5a622e1f30cb44da3c576f9e09e0f41a", kill_on_drop: false }`
[INFO] [stdout] aee2b21ac4320fa0b505313804c2c34b5a622e1f30cb44da3c576f9e09e0f41a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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=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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 36ac56a51753dbdbf3f12c4e5376ffee5e36c8b60d2560a1ed05414f6c36f1fb
[INFO] running `Command { std: "docker" "start" "-a" "36ac56a51753dbdbf3f12c4e5376ffee5e36c8b60d2560a1ed05414f6c36f1fb", kill_on_drop: false }`
[INFO] [stderr]     Checking syscall-alt v0.0.14
[INFO] [stderr]     Checking either v1.15.0
[INFO] [stderr]     Checking likely v0.1.0
[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] For more information about this error, try `rustc --explain E0557`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `syscall-alt` (lib) due to 8 previous errors
[INFO] running `Command { std: "docker" "inspect" "36ac56a51753dbdbf3f12c4e5376ffee5e36c8b60d2560a1ed05414f6c36f1fb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "36ac56a51753dbdbf3f12c4e5376ffee5e36c8b60d2560a1ed05414f6c36f1fb", kill_on_drop: false }`
[INFO] [stdout] 36ac56a51753dbdbf3f12c4e5376ffee5e36c8b60d2560a1ed05414f6c36f1fb