[INFO] fetching crate max32630_svd 0.1.0...
[INFO] testing max32630_svd-0.1.0 against 1.49.0 for beta-1.50-1
[INFO] extracting crate max32630_svd 0.1.0 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate max32630_svd 0.1.0 on toolchain 1.49.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate max32630_svd 0.1.0
[INFO] finished tweaking crates.io crate max32630_svd 0.1.0
[INFO] tweaked toml for crates.io crate max32630_svd 0.1.0 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "fetch" "--locked" "--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/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 71f155493b50c8fc03d86c4491c30aca87f06dad3a38738cadf7d7cac1623f8d
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "71f155493b50c8fc03d86c4491c30aca87f06dad3a38738cadf7d7cac1623f8d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "71f155493b50c8fc03d86c4491c30aca87f06dad3a38738cadf7d7cac1623f8d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "71f155493b50c8fc03d86c4491c30aca87f06dad3a38738cadf7d7cac1623f8d", kill_on_drop: false }`
[INFO] [stdout] 71f155493b50c8fc03d86c4491c30aca87f06dad3a38738cadf7d7cac1623f8d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] a842b93c33fac40873f839649571bd82988d94c2771ddb134791903a6c28af0f
[INFO] running `Command { std: "docker" "start" "-a" "a842b93c33fac40873f839649571bd82988d94c2771ddb134791903a6c28af0f", kill_on_drop: false }`
[INFO] [stderr]    Compiling cortex-m v0.6.4
[INFO] [stderr]    Compiling stable_deref_trait v1.2.0
[INFO] [stderr]    Compiling vcell v0.1.3
[INFO] [stderr]    Compiling bitfield v0.13.2
[INFO] [stderr]    Compiling cortex-m v0.5.10
[INFO] [stderr]    Compiling aligned v0.2.0
[INFO] [stderr]    Compiling max32630_svd v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling generic-array v0.13.2
[INFO] [stderr]    Compiling bare-metal v0.2.5
[INFO] [stderr]    Compiling volatile-register v0.2.0
[INFO] [stderr]    Compiling as-slice v0.1.4
[INFO] [stderr]    Compiling aligned v0.3.4
[INFO] [stdout] warning: lint `intra_doc_link_resolution_failure` has been renamed to `broken_intra_doc_links`
[INFO] [stdout]  --> src/lib.rs:4:10
[INFO] [stdout]   |
[INFO] [stdout] 4 | #![allow(intra_doc_link_resolution_failure)]
[INFO] [stdout]   |          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use the new name: `broken_intra_doc_links`
[INFO] [stdout]   |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]  --> src/lib.rs:3:9
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![deny(warnings)]
[INFO] [stdout]   |         ^^^^^^^^
[INFO] [stdout]   = note: `#[warn(renamed_and_removed_lints)]` implied by `#[warn(warnings)]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lint `private_no_mangle_statics` has been removed: `no longer a warning, `#[no_mangle]` statics always exported`
[INFO] [stdout]     --> src/lib.rs:1455:9
[INFO] [stdout]      |
[INFO] [stdout] 1455 | #[allow(private_no_mangle_statics)]
[INFO] [stdout]      |         ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:7:1
[INFO] [stdout]   |
[INFO] [stdout] 7 | #![feature(untagged_unions)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `max32630_svd`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "a842b93c33fac40873f839649571bd82988d94c2771ddb134791903a6c28af0f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a842b93c33fac40873f839649571bd82988d94c2771ddb134791903a6c28af0f", kill_on_drop: false }`
[INFO] [stdout] a842b93c33fac40873f839649571bd82988d94c2771ddb134791903a6c28af0f