[INFO] fetching crate ruspiro-i2c 0.4.0...
[INFO] testing ruspiro-i2c-0.4.0 against try#b83b707f97d809763b7861afa7638871f3339a33 for pr-145838-1
[INFO] extracting crate ruspiro-i2c 0.4.0 into /workspace/builds/worker-4-tc2/source
[INFO] removed /workspace/builds/worker-4-tc2/source/rust-toolchain.toml
[INFO] started tweaking crates.io crate ruspiro-i2c 0.4.0
[INFO] finished tweaking crates.io crate ruspiro-i2c 0.4.0
[INFO] tweaked toml for crates.io crate ruspiro-i2c 0.4.0 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate ruspiro-i2c 0.4.0 on toolchain b83b707f97d809763b7861afa7638871f3339a33
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "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" "+b83b707f97d809763b7861afa7638871f3339a33" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 15 packages to latest compatible versions
[INFO] [stderr]       Adding ruspiro-timer v0.5.2 (available: v0.6.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 012b4968993db69f5cbb918fad8a37b126191b8d381c29723558b895ed3da795
[INFO] running `Command { std: "docker" "start" "-a" "012b4968993db69f5cbb918fad8a37b126191b8d381c29723558b895ed3da795", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "012b4968993db69f5cbb918fad8a37b126191b8d381c29723558b895ed3da795", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "012b4968993db69f5cbb918fad8a37b126191b8d381c29723558b895ed3da795", kill_on_drop: false }`
[INFO] [stdout] 012b4968993db69f5cbb918fad8a37b126191b8d381c29723558b895ed3da795
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d70a15a7cf3f37073342ea59e10b95a4686a20b6cd65e8bcfae8b4881b7cf7bc
[INFO] running `Command { std: "docker" "start" "-a" "d70a15a7cf3f37073342ea59e10b95a4686a20b6cd65e8bcfae8b4881b7cf7bc", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.101
[INFO] [stderr]    Compiling unicode-ident v1.0.18
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling ruspiro-register v0.5.5
[INFO] [stderr]    Compiling paste v1.0.15
[INFO] [stderr]    Compiling ruspiro-interrupt v0.4.3
[INFO] [stderr]    Compiling ruspiro-lock v0.4.3
[INFO] [stderr]    Compiling ruspiro-arch-aarch64 v0.1.7
[INFO] [stderr]    Compiling ruspiro-mmio-register v0.1.4
[INFO] [stderr]    Compiling ruspiro-singleton v0.4.3
[INFO] [stderr]    Compiling ruspiro-channel v0.1.1
[INFO] [stderr]    Compiling quote v1.0.40
[INFO] [stderr]    Compiling ruspiro-interrupt-macros v0.3.2
[INFO] [stdout] error[E0635]: unknown feature `llvm_asm`
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/ruspiro-interrupt-0.4.3/src/lib.rs:9:12
[INFO] [stdout]   |
[INFO] [stdout] 9 | #![feature(llvm_asm)]
[INFO] [stdout]   |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `ruspiro-interrupt` (lib) due to 1 previous error
[INFO] [stdout] For more information about this error, try `rustc --explain E0635`.
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "d70a15a7cf3f37073342ea59e10b95a4686a20b6cd65e8bcfae8b4881b7cf7bc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d70a15a7cf3f37073342ea59e10b95a4686a20b6cd65e8bcfae8b4881b7cf7bc", kill_on_drop: false }`
[INFO] [stdout] d70a15a7cf3f37073342ea59e10b95a4686a20b6cd65e8bcfae8b4881b7cf7bc