[INFO] fetching crate rad1o-firmware 0.0.0...
[INFO] checking rad1o-firmware-0.0.0 against try#b20a093d9fb1ffaa04ae9852cb034864a992bafd for pr-85073
[INFO] extracting crate rad1o-firmware 0.0.0 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate rad1o-firmware 0.0.0 on toolchain b20a093d9fb1ffaa04ae9852cb034864a992bafd
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b20a093d9fb1ffaa04ae9852cb034864a992bafd" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rad1o-firmware 0.0.0
[INFO] finished tweaking crates.io crate rad1o-firmware 0.0.0
[INFO] tweaked toml for crates.io crate rad1o-firmware 0.0.0 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b20a093d9fb1ffaa04ae9852cb034864a992bafd" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b20a093d9fb1ffaa04ae9852cb034864a992bafd" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded lpc43xx-hal v0.0.0
[INFO] [stderr]   Downloaded console-traits v0.2.0
[INFO] [stderr]   Downloaded fatfs v0.2.0
[INFO] [stderr]   Downloaded vga-framebuffer v0.2.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+b20a093d9fb1ffaa04ae9852cb034864a992bafd" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b2fbd67431337b4611ee1a24c53ffbfb160311c259fd58dd0da5c6eb9448c88c
[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" "b2fbd67431337b4611ee1a24c53ffbfb160311c259fd58dd0da5c6eb9448c88c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b2fbd67431337b4611ee1a24c53ffbfb160311c259fd58dd0da5c6eb9448c88c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b2fbd67431337b4611ee1a24c53ffbfb160311c259fd58dd0da5c6eb9448c88c", kill_on_drop: false }`
[INFO] [stdout] b2fbd67431337b4611ee1a24c53ffbfb160311c259fd58dd0da5c6eb9448c88c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+b20a093d9fb1ffaa04ae9852cb034864a992bafd" "check" "--frozen" "--all" "--all-targets" "--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] 8decb7308ddfa31e53d8750d6048c99b6fe9afa5bc1fdd54bb85cf34a0330be9
[INFO] running `Command { std: "docker" "start" "-a" "8decb7308ddfa31e53d8750d6048c99b6fe9afa5bc1fdd54bb85cf34a0330be9", kill_on_drop: false }`
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling version_check v0.9.3
[INFO] [stderr]     Checking nb v1.0.0
[INFO] [stderr]    Compiling syn v1.0.72
[INFO] [stderr]    Compiling cortex-m v0.7.2
[INFO] [stderr]     Checking vcell v0.1.3
[INFO] [stderr]     Checking bitfield v0.13.2
[INFO] [stderr]    Compiling cortex-m v0.6.7
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling lpc43xx v0.1.0
[INFO] [stderr]    Compiling rad1o-firmware v0.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]     Checking console-traits v0.2.0
[INFO] [stderr]    Compiling core_io v0.1.20210325
[INFO] [stderr]     Checking generic-array v0.13.3
[INFO] [stderr]     Checking generic-array v0.12.4
[INFO] [stderr]     Checking log v0.4.14
[INFO] [stderr]     Checking nb v0.1.3
[INFO] [stderr]     Checking vga-framebuffer v0.2.1
[INFO] [stderr]     Checking volatile-register v0.2.0
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]     Checking embedded-hal v0.2.5
[INFO] [stdout] error[E0658]: trait bounds other than `Sized` on const fn parameters are unstable
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/vga-framebuffer-0.2.1/src/lib.rs:217:6
[INFO] [stdout]     |
[INFO] [stdout] 217 | impl<T> FrameBuffer<T>
[INFO] [stdout]     |      ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #57563 <https://github.com/rust-lang/rust/issues/57563> for more information
[INFO] [stdout]     = help: add `#![feature(const_fn_trait_bound)]` to the crate attributes to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0658`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `vga-framebuffer`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "8decb7308ddfa31e53d8750d6048c99b6fe9afa5bc1fdd54bb85cf34a0330be9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8decb7308ddfa31e53d8750d6048c99b6fe9afa5bc1fdd54bb85cf34a0330be9", kill_on_drop: false }`
[INFO] [stdout] 8decb7308ddfa31e53d8750d6048c99b6fe9afa5bc1fdd54bb85cf34a0330be9