[INFO] fetching crate oxcc-stm32f767-hal 0.2.0...
[INFO] testing oxcc-stm32f767-hal-0.2.0 against 1.60.0 for beta-1.61-1
[INFO] extracting crate oxcc-stm32f767-hal 0.2.0 into /workspace/builds/worker-9/source
[INFO] validating manifest of crates.io crate oxcc-stm32f767-hal 0.2.0 on toolchain 1.60.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate oxcc-stm32f767-hal 0.2.0
[INFO] finished tweaking crates.io crate oxcc-stm32f767-hal 0.2.0
[INFO] tweaked toml for crates.io crate oxcc-stm32f767-hal 0.2.0 written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded cortex-m v0.6.7
[INFO] [stderr]   Downloaded cortex-m-rt-macros v0.6.15
[INFO] [stderr]   Downloaded cortex-m-rt v0.6.15
[INFO] [stderr]   Downloaded aligned v0.3.5
[INFO] [stderr]   Downloaded embedded_types v0.3.2
[INFO] [stderr]   Downloaded aligned v0.2.0
[INFO] [stderr]   Downloaded cortex-m v0.5.11
[INFO] [stderr]   Downloaded r0 v0.2.2
[INFO] [stderr]   Downloaded oxcc-stm32f767 v0.1.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d86fb42c140a3176edf9ff56b3e1f227c95a2af12e95e768b927a4944662119a
[INFO] running `Command { std: "docker" "start" "-a" "d86fb42c140a3176edf9ff56b3e1f227c95a2af12e95e768b927a4944662119a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d86fb42c140a3176edf9ff56b3e1f227c95a2af12e95e768b927a4944662119a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d86fb42c140a3176edf9ff56b3e1f227c95a2af12e95e768b927a4944662119a", kill_on_drop: false }`
[INFO] [stdout] d86fb42c140a3176edf9ff56b3e1f227c95a2af12e95e768b927a4944662119a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a651577c18df6d72a5e6f496a98bac52d40bb989d111c8c3c0c9cfc93efc9abb
[INFO] running `Command { std: "docker" "start" "-a" "a651577c18df6d72a5e6f496a98bac52d40bb989d111c8c3c0c9cfc93efc9abb", kill_on_drop: false }`
[INFO] [stderr]    Compiling semver v1.0.7
[INFO] [stderr]    Compiling stable_deref_trait v1.2.0
[INFO] [stderr]    Compiling cortex-m v0.6.7
[INFO] [stderr]    Compiling cortex-m-rt v0.6.15
[INFO] [stderr]    Compiling cortex-m v0.5.11
[INFO] [stderr]    Compiling oxcc-stm32f767 v0.1.0
[INFO] [stderr]    Compiling aligned v0.2.0
[INFO] [stderr]    Compiling r0 v0.2.2
[INFO] [stderr]    Compiling embedded_types v0.3.2
[INFO] [stderr]    Compiling nb v0.1.3
[INFO] [stderr]    Compiling generic-array v0.12.4
[INFO] [stderr]    Compiling generic-array v0.13.3
[INFO] [stderr]    Compiling cortex-m-rt-macros v0.6.15
[INFO] [stderr]    Compiling embedded-hal v0.2.7
[INFO] [stderr]    Compiling cortex-m v0.7.4
[INFO] [stderr]    Compiling as-slice v0.1.5
[INFO] [stderr]    Compiling rustc_version v0.4.0
[INFO] [stderr]    Compiling aligned v0.3.5
[INFO] [stderr]    Compiling cast v0.2.7
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/oxcc-stm32f767-0.1.0/src/lib.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(const_fn)]
[INFO] [stdout]   |            ^^^^^^^^ feature has been removed
[INFO] [stdout]   |
[INFO] [stdout]   = note: split into finer-grained feature gates
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/oxcc-stm32f767-0.1.0/src/lib.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(const_fn)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/oxcc-stm32f767-0.1.0/src/lib.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![feature(try_from)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/oxcc-stm32f767-0.1.0/src/lib.rs:5:29
[INFO] [stdout]   |
[INFO] [stdout] 5 | #![cfg_attr(feature = "rt", feature(global_asm))]
[INFO] [stdout]   |                             ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/oxcc-stm32f767-0.1.0/src/lib.rs:6:29
[INFO] [stdout]   |
[INFO] [stdout] 6 | #![cfg_attr(feature = "rt", feature(use_extern_macros))]
[INFO] [stdout]   |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove the attribute
[INFO] [stdout]   |
[INFO] [stdout]   = help: the feature `use_extern_macros` has been stable since 1.30.0 and no longer requires an attribute to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/oxcc-stm32f767-0.1.0/src/lib.rs:7:29
[INFO] [stdout]   |
[INFO] [stdout] 7 | #![cfg_attr(feature = "rt", feature(used))]
[INFO] [stdout]   |                             ^^^^^^^^^^^^^ help: remove the attribute
[INFO] [stdout]   |
[INFO] [stdout]   = help: the feature `used` has been stable since 1.30.0 and no longer requires an attribute to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 6 previous errors
[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 `oxcc-stm32f767` due to 7 previous errors
[INFO] running `Command { std: "docker" "inspect" "a651577c18df6d72a5e6f496a98bac52d40bb989d111c8c3c0c9cfc93efc9abb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a651577c18df6d72a5e6f496a98bac52d40bb989d111c8c3c0c9cfc93efc9abb", kill_on_drop: false }`
[INFO] [stdout] a651577c18df6d72a5e6f496a98bac52d40bb989d111c8c3c0c9cfc93efc9abb