[INFO] fetching crate mwatch_kernel 1.0.0... [INFO] checking mwatch_kernel-1.0.0 against try#f6e2f78768c57172b99c3e85892f867894dc7e30 for pr-75502 [INFO] extracting crate mwatch_kernel 1.0.0 into /workspace/builds/worker-5/source [INFO] validating manifest of crates.io crate mwatch_kernel 1.0.0 on toolchain f6e2f78768c57172b99c3e85892f867894dc7e30 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] removed /workspace/builds/worker-5/source/.cargo/config [INFO] started tweaking crates.io crate mwatch_kernel 1.0.0 [INFO] finished tweaking crates.io crate mwatch_kernel 1.0.0 [INFO] tweaked toml for crates.io crate mwatch_kernel 1.0.0 written to /workspace/builds/worker-5/source/Cargo.toml [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }` [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded panic-itm v0.4.1 [INFO] [stderr] Downloaded simple-hex v0.1.0 [INFO] [stderr] Downloaded hm11 v0.2.1 [INFO] [stderr] Downloaded max17048 v0.1.0 [INFO] [stderr] Downloaded cortex-m-log v0.4.0 [INFO] [stderr] Downloaded ssd1351 v0.2.2 [INFO] [stderr] Downloaded stm32l4xx-hal v0.4.0 [INFO] [stderr] Downloaded stm32l4 v0.7.1 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "metadata" "--no-deps" "--format-version=1", 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] 47583776383ca0e14ba708a89f9168ad76cec50d564ba5c7f0a62aa3918e7b41 [INFO] running `Command { std: "docker" "start" "-a" "47583776383ca0e14ba708a89f9168ad76cec50d564ba5c7f0a62aa3918e7b41", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "47583776383ca0e14ba708a89f9168ad76cec50d564ba5c7f0a62aa3918e7b41", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "47583776383ca0e14ba708a89f9168ad76cec50d564ba5c7f0a62aa3918e7b41", kill_on_drop: false }` [INFO] [stdout] 47583776383ca0e14ba708a89f9168ad76cec50d564ba5c7f0a62aa3918e7b41 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 1a115cf7a54ab7a5f795357f8b8361817319dc253f229fe3c039debe3b64af92 [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" "1a115cf7a54ab7a5f795357f8b8361817319dc253f229fe3c039debe3b64af92", kill_on_drop: false }` [INFO] [stderr] Checking stable_deref_trait v1.2.0 [INFO] [stderr] Compiling cortex-m v0.6.3 [INFO] [stderr] Checking vcell v0.1.2 [INFO] [stderr] Checking bitfield v0.13.2 [INFO] [stderr] Compiling memchr v2.3.3 [INFO] [stderr] Compiling byteorder v1.3.4 [INFO] [stderr] Checking nb v1.0.0 [INFO] [stderr] Compiling rand_core v0.4.2 [INFO] [stderr] Checking void v1.0.2 [INFO] [stderr] Compiling cortex-m v0.5.10 [INFO] [stderr] Checking aligned v0.2.0 [INFO] [stderr] Compiling heapless v0.4.4 [INFO] [stderr] Checking r0 v0.2.2 [INFO] [stderr] Compiling build_const v0.2.1 [INFO] [stderr] Compiling stm32l4 v0.7.1 [INFO] [stderr] Compiling cortex-m-semihosting v0.3.5 [INFO] [stderr] Checking cfg-if v0.1.10 [INFO] [stderr] Compiling cortex-m-rtfm v0.4.3 [INFO] [stderr] Compiling mwatch_kernel v1.0.0 (/opt/rustwide/workdir) [INFO] [stderr] Checking simple-hex v0.1.0 [INFO] [stderr] Compiling typenum v1.12.0 [INFO] [stderr] Compiling cortex-m-rt v0.6.12 [INFO] [stderr] Compiling nom v5.1.2 [INFO] [stderr] Compiling nom v4.2.3 [INFO] [stderr] Compiling log v0.4.11 [INFO] [stderr] Checking volatile-register v0.2.0 [INFO] [stderr] Checking nb v0.1.3 [INFO] [stderr] Compiling rand_core v0.3.1 [INFO] [stderr] Compiling bare-metal v0.2.5 [INFO] [stderr] Compiling cast v0.2.3 [INFO] [stderr] Checking embedded-hal v0.2.4 [INFO] [stderr] Compiling rand v0.5.6 [INFO] [stderr] Compiling crc v1.8.1 [INFO] [stderr] Compiling syn v1.0.39 [INFO] [stderr] Checking max17048 v0.1.0 [INFO] [stderr] Checking hash32 v0.1.1 [INFO] [stderr] Checking generic-array v0.12.3 [INFO] [stderr] Checking generic-array v0.13.2 [INFO] [stderr] Checking generic-array v0.11.1 [INFO] [stderr] Compiling owned-singleton-macros v0.1.0 [INFO] [stderr] Compiling cortex-m-rtfm-macros v0.4.3 [INFO] [stderr] Checking tinytga v0.1.0 [INFO] [stderr] Checking as-slice v0.1.3 [INFO] [stderr] Checking aligned v0.3.4 [INFO] [stderr] Checking panic-itm v0.4.1 [INFO] [stderr] Checking owned-singleton v0.1.0 [INFO] [stderr] Checking panic-semihosting v0.5.3 [INFO] [stderr] Checking tinybmp v0.1.1 [INFO] [stderr] Checking cortex-m-log v0.4.0 [INFO] [stderr] Checking embedded-graphics v0.4.9 [INFO] [stderr] Checking hm11 v0.2.1 [INFO] [stderr] Checking ssd1351 v0.2.2 [INFO] [stderr] Compiling cortex-m-rt-macros v0.1.8 [INFO] [stdout] error[E0658]: use of unstable library feature 'maybe_uninit_extra' [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/cortex-m-rtfm-0.4.3/src/export.rs:90:20 [INFO] [stdout] | [INFO] [stdout] 90 | self.inner.write(value) [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: see issue #63567 for more information [INFO] [stdout] = help: add `#![feature(maybe_uninit_extra)]` 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 `cortex-m-rtfm`. [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" "1a115cf7a54ab7a5f795357f8b8361817319dc253f229fe3c039debe3b64af92", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "1a115cf7a54ab7a5f795357f8b8361817319dc253f229fe3c039debe3b64af92", kill_on_drop: false }` [INFO] [stdout] 1a115cf7a54ab7a5f795357f8b8361817319dc253f229fe3c039debe3b64af92