[INFO] fetching crate qemu-fw-cfg 0.2.0...
[INFO] testing qemu-fw-cfg-0.2.0 against 1.90.0 for beta-1.91-3
[INFO] extracting crate qemu-fw-cfg 0.2.0 into /workspace/builds/worker-7-tc1/source
[INFO] removed /workspace/builds/worker-7-tc1/source/.cargo/config
[INFO] removed /workspace/builds/worker-7-tc1/source/rust-toolchain.toml
[INFO] started tweaking crates.io crate qemu-fw-cfg 0.2.0
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate qemu-fw-cfg 0.2.0
[INFO] tweaked toml for crates.io crate qemu-fw-cfg 0.2.0 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate qemu-fw-cfg 0.2.0 on toolchain 1.90.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "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" "+1.90.0" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 22 packages to latest compatible versions
[INFO] [stderr]       Adding riscv-rt v0.9.0 (available: v0.16.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded riscv-rt v0.9.0
[INFO] [stderr]   Downloaded fdt v0.1.5
[INFO] [stderr]   Downloaded r0 v1.0.0
[INFO] [stderr]   Downloaded riscv v0.8.0
[INFO] [stderr]   Downloaded riscv-rt-macros v0.2.2
[INFO] [stderr]   Downloaded bare-metal v1.0.0
[INFO] [stderr]   Downloaded riscv-target v0.1.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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" "+1.90.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] dd5d4a2658724a4dcb6e55c491cfce969a9c9a6484cfc5c09956c76eb4d29a60
[INFO] running `Command { std: "docker" "start" "-a" "dd5d4a2658724a4dcb6e55c491cfce969a9c9a6484cfc5c09956c76eb4d29a60", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dd5d4a2658724a4dcb6e55c491cfce969a9c9a6484cfc5c09956c76eb4d29a60", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dd5d4a2658724a4dcb6e55c491cfce969a9c9a6484cfc5c09956c76eb4d29a60", kill_on_drop: false }`
[INFO] [stdout] dd5d4a2658724a4dcb6e55c491cfce969a9c9a6484cfc5c09956c76eb4d29a60
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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" "+1.90.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5ad2bcc37ff2c6cbcc8ab285e61c86b5dfb8b96cbe7f0ffe05b50bd22ab512c4
[INFO] running `Command { std: "docker" "start" "-a" "5ad2bcc37ff2c6cbcc8ab285e61c86b5dfb8b96cbe7f0ffe05b50bd22ab512c4", kill_on_drop: false }`
[INFO] [stderr]    Compiling qemu-fw-cfg v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.29s
[INFO] running `Command { std: "docker" "inspect" "5ad2bcc37ff2c6cbcc8ab285e61c86b5dfb8b96cbe7f0ffe05b50bd22ab512c4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5ad2bcc37ff2c6cbcc8ab285e61c86b5dfb8b96cbe7f0ffe05b50bd22ab512c4", kill_on_drop: false }`
[INFO] [stdout] 5ad2bcc37ff2c6cbcc8ab285e61c86b5dfb8b96cbe7f0ffe05b50bd22ab512c4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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" "+1.90.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 947566c97ec2fa5c3828b45e5650ab31a36f7203101e69356588d8a2533cf5d8
[INFO] running `Command { std: "docker" "start" "-a" "947566c97ec2fa5c3828b45e5650ab31a36f7203101e69356588d8a2533cf5d8", kill_on_drop: false }`
[INFO] [stderr]    Compiling qemu-fw-cfg v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0432]: unresolved import `arch`
[INFO] [stdout]  --> tests/shared/mod.rs:9:9
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub use arch::*;
[INFO] [stdout]   |         ^^^^ help: a similar path exists: `core::arch`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> tests/main.rs:3:32
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![cfg_attr(feature = "alloc", feature(default_alloc_error_handler))]
[INFO] [stdout]   |                                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove the attribute
[INFO] [stdout]   |
[INFO] [stdout]   = help: the feature `default_alloc_error_handler` has been stable since `1.68.0` and no longer requires an attribute to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unwinding panics are not supported without std
[INFO] [stdout]   |
[INFO] [stdout]   = help: using nightly cargo, use -Zbuild-std with panic="abort" to avoid unwinding
[INFO] [stdout]   = note: since the core library is usually precompiled with panic="unwind", rebuilding your crate with panic="abort" may not be enough to fix the problem
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `default_alloc_error_handler` has been stable since 1.68.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> tests/main.rs:3:40
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![cfg_attr(feature = "alloc", feature(default_alloc_error_handler))]
[INFO] [stdout]   |                                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0432, E0554.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `qemu-fw-cfg` (test "main") due to 3 previous errors; 1 warning emitted
[INFO] [stdout] For more information about an error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "947566c97ec2fa5c3828b45e5650ab31a36f7203101e69356588d8a2533cf5d8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "947566c97ec2fa5c3828b45e5650ab31a36f7203101e69356588d8a2533cf5d8", kill_on_drop: false }`
[INFO] [stdout] 947566c97ec2fa5c3828b45e5650ab31a36f7203101e69356588d8a2533cf5d8