[INFO] cloning repository https://github.com/cbiffle/emb.rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/cbiffle/emb.rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcbiffle%2Femb.rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcbiffle%2Femb.rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 33fb6d83270e5c2974ef0728f98e173c5e920812
[INFO] testing cbiffle/emb.rs against 1.54.0 for beta-1.55-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcbiffle%2Femb.rs" "/workspace/builds/worker-103/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-103/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/cbiffle/emb.rs on toolchain 1.54.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-103/source/.cargo/config
[INFO] started tweaking git repo https://github.com/cbiffle/emb.rs
[INFO] finished tweaking git repo https://github.com/cbiffle/emb.rs
[INFO] tweaked toml for git repo https://github.com/cbiffle/emb.rs written to /workspace/builds/worker-103/source/Cargo.toml
[INFO] crate git repo https://github.com/cbiffle/emb.rs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: invalid character `:` in feature `cpu:cortex-m4f` in package embrs v0.1.0 (/workspace/builds/worker-103/source/embrs), characters must be Unicode XID characters, `+`, or `.` (numbers, `+`, `-`, `_`, `.`, or most letters)
[INFO] [stderr] This was previously accepted but is being phased out; it will become a hard error in a future release.
[INFO] [stderr] For more information, see issue #8813 <https://github.com/rust-lang/cargo/issues/8813>, and please leave a comment if this will be a problem for your project.
[INFO] [stderr] warning: invalid character `:` in feature `soc:stm32f407` in package embrs v0.1.0 (/workspace/builds/worker-103/source/embrs), characters must be Unicode XID characters, `+`, or `.` (numbers, `+`, `-`, `_`, `.`, or most letters)
[INFO] [stderr] This was previously accepted but is being phased out; it will become a hard error in a future release.
[INFO] [stderr] For more information, see issue #8813 <https://github.com/rust-lang/cargo/issues/8813>, and please leave a comment if this will be a problem for your project.
[INFO] [stderr] warning: invalid character `:` in feature `soc_family:stm32f4` in package embrs v0.1.0 (/workspace/builds/worker-103/source/embrs), characters must be Unicode XID characters, `+`, or `.` (numbers, `+`, `-`, `_`, `.`, or most letters)
[INFO] [stderr] This was previously accepted but is being phased out; it will become a hard error in a future release.
[INFO] [stderr] For more information, see issue #8813 <https://github.com/rust-lang/cargo/issues/8813>, and please leave a comment if this will be a problem for your project.
[INFO] [stderr] warning: invalid character `:` in feature `soc_family:stm32f4[01]` in package embrs v0.1.0 (/workspace/builds/worker-103/source/embrs), characters must be Unicode XID characters, `+`, or `.` (numbers, `+`, `-`, `_`, `.`, or most letters)
[INFO] [stderr] This was previously accepted but is being phased out; it will become a hard error in a future release.
[INFO] [stderr] For more information, see issue #8813 <https://github.com/rust-lang/cargo/issues/8813>, and please leave a comment if this will be a problem for your project.
[INFO] [stderr] warning: invalid character `[` in feature `soc_family:stm32f4[01]` in package embrs v0.1.0 (/workspace/builds/worker-103/source/embrs), characters must be Unicode XID characters, `+`, or `.` (numbers, `+`, `-`, `_`, `.`, or most letters)
[INFO] [stderr] This was previously accepted but is being phased out; it will become a hard error in a future release.
[INFO] [stderr] For more information, see issue #8813 <https://github.com/rust-lang/cargo/issues/8813>, and please leave a comment if this will be a problem for your project.
[INFO] [stderr] warning: invalid character `]` in feature `soc_family:stm32f4[01]` in package embrs v0.1.0 (/workspace/builds/worker-103/source/embrs), characters must be Unicode XID characters, `+`, or `.` (numbers, `+`, `-`, `_`, `.`, or most letters)
[INFO] [stderr] This was previously accepted but is being phased out; it will become a hard error in a future release.
[INFO] [stderr] For more information, see issue #8813 <https://github.com/rust-lang/cargo/issues/8813>, and please leave a comment if this will be a problem for your project.
[INFO] [stderr] warning: invalid character `:` in feature `cpu:cortex-m4f` in package embrs v0.1.0 (/workspace/builds/worker-103/source/embrs), characters must be Unicode XID characters, `+`, or `.` (numbers, `+`, `-`, `_`, `.`, or most letters)
[INFO] [stderr] This was previously accepted but is being phased out; it will become a hard error in a future release.
[INFO] [stderr] For more information, see issue #8813 <https://github.com/rust-lang/cargo/issues/8813>, and please leave a comment if this will be a problem for your project.
[INFO] [stderr] warning: invalid character `:` in feature `soc:stm32f407` in package embrs v0.1.0 (/workspace/builds/worker-103/source/embrs), characters must be Unicode XID characters, `+`, or `.` (numbers, `+`, `-`, `_`, `.`, or most letters)
[INFO] [stderr] This was previously accepted but is being phased out; it will become a hard error in a future release.
[INFO] [stderr] For more information, see issue #8813 <https://github.com/rust-lang/cargo/issues/8813>, and please leave a comment if this will be a problem for your project.
[INFO] [stderr] warning: invalid character `:` in feature `soc_family:stm32f4` in package embrs v0.1.0 (/workspace/builds/worker-103/source/embrs), characters must be Unicode XID characters, `+`, or `.` (numbers, `+`, `-`, `_`, `.`, or most letters)
[INFO] [stderr] This was previously accepted but is being phased out; it will become a hard error in a future release.
[INFO] [stderr] For more information, see issue #8813 <https://github.com/rust-lang/cargo/issues/8813>, and please leave a comment if this will be a problem for your project.
[INFO] [stderr] warning: invalid character `:` in feature `soc_family:stm32f4[01]` in package embrs v0.1.0 (/workspace/builds/worker-103/source/embrs), characters must be Unicode XID characters, `+`, or `.` (numbers, `+`, `-`, `_`, `.`, or most letters)
[INFO] [stderr] This was previously accepted but is being phased out; it will become a hard error in a future release.
[INFO] [stderr] For more information, see issue #8813 <https://github.com/rust-lang/cargo/issues/8813>, and please leave a comment if this will be a problem for your project.
[INFO] [stderr] warning: invalid character `[` in feature `soc_family:stm32f4[01]` in package embrs v0.1.0 (/workspace/builds/worker-103/source/embrs), characters must be Unicode XID characters, `+`, or `.` (numbers, `+`, `-`, `_`, `.`, or most letters)
[INFO] [stderr] This was previously accepted but is being phased out; it will become a hard error in a future release.
[INFO] [stderr] For more information, see issue #8813 <https://github.com/rust-lang/cargo/issues/8813>, and please leave a comment if this will be a problem for your project.
[INFO] [stderr] warning: invalid character `]` in feature `soc_family:stm32f4[01]` in package embrs v0.1.0 (/workspace/builds/worker-103/source/embrs), characters must be Unicode XID characters, `+`, or `.` (numbers, `+`, `-`, `_`, `.`, or most letters)
[INFO] [stderr] This was previously accepted but is being phased out; it will become a hard error in a future release.
[INFO] [stderr] For more information, see issue #8813 <https://github.com/rust-lang/cargo/issues/8813>, and please leave a comment if this will be a problem for your project.
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-103/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-103/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 36ce8fa2dd2b86c5aa356ca38468350d2d6f2145f86100280761d61c20f8ec8c
[INFO] running `Command { std: "docker" "start" "-a" "36ce8fa2dd2b86c5aa356ca38468350d2d6f2145f86100280761d61c20f8ec8c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "36ce8fa2dd2b86c5aa356ca38468350d2d6f2145f86100280761d61c20f8ec8c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "36ce8fa2dd2b86c5aa356ca38468350d2d6f2145f86100280761d61c20f8ec8c", kill_on_drop: false }`
[INFO] [stdout] 36ce8fa2dd2b86c5aa356ca38468350d2d6f2145f86100280761d61c20f8ec8c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-103/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-103/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 09757432791ac12ae01a6c2b97e62c1791d413849eed4a9bca81caa407c72d25
[INFO] running `Command { std: "docker" "start" "-a" "09757432791ac12ae01a6c2b97e62c1791d413849eed4a9bca81caa407c72d25", kill_on_drop: false }`
[INFO] [stderr] warning: invalid character `:` in feature `cpu:cortex-m4f` in package embrs v0.1.0 (/opt/rustwide/workdir/embrs), characters must be Unicode XID characters, `+`, or `.` (numbers, `+`, `-`, `_`, `.`, or most letters)
[INFO] [stderr] This was previously accepted but is being phased out; it will become a hard error in a future release.
[INFO] [stderr] For more information, see issue #8813 <https://github.com/rust-lang/cargo/issues/8813>, and please leave a comment if this will be a problem for your project.
[INFO] [stderr] warning: invalid character `:` in feature `soc:stm32f407` in package embrs v0.1.0 (/opt/rustwide/workdir/embrs), characters must be Unicode XID characters, `+`, or `.` (numbers, `+`, `-`, `_`, `.`, or most letters)
[INFO] [stderr] This was previously accepted but is being phased out; it will become a hard error in a future release.
[INFO] [stderr] For more information, see issue #8813 <https://github.com/rust-lang/cargo/issues/8813>, and please leave a comment if this will be a problem for your project.
[INFO] [stderr] warning: invalid character `:` in feature `soc_family:stm32f4` in package embrs v0.1.0 (/opt/rustwide/workdir/embrs), characters must be Unicode XID characters, `+`, or `.` (numbers, `+`, `-`, `_`, `.`, or most letters)
[INFO] [stderr] This was previously accepted but is being phased out; it will become a hard error in a future release.
[INFO] [stderr] For more information, see issue #8813 <https://github.com/rust-lang/cargo/issues/8813>, and please leave a comment if this will be a problem for your project.
[INFO] [stderr] warning: invalid character `:` in feature `soc_family:stm32f4[01]` in package embrs v0.1.0 (/opt/rustwide/workdir/embrs), characters must be Unicode XID characters, `+`, or `.` (numbers, `+`, `-`, `_`, `.`, or most letters)
[INFO] [stderr] This was previously accepted but is being phased out; it will become a hard error in a future release.
[INFO] [stderr] For more information, see issue #8813 <https://github.com/rust-lang/cargo/issues/8813>, and please leave a comment if this will be a problem for your project.
[INFO] [stderr] warning: invalid character `[` in feature `soc_family:stm32f4[01]` in package embrs v0.1.0 (/opt/rustwide/workdir/embrs), characters must be Unicode XID characters, `+`, or `.` (numbers, `+`, `-`, `_`, `.`, or most letters)
[INFO] [stderr] This was previously accepted but is being phased out; it will become a hard error in a future release.
[INFO] [stderr] For more information, see issue #8813 <https://github.com/rust-lang/cargo/issues/8813>, and please leave a comment if this will be a problem for your project.
[INFO] [stderr] warning: invalid character `]` in feature `soc_family:stm32f4[01]` in package embrs v0.1.0 (/opt/rustwide/workdir/embrs), characters must be Unicode XID characters, `+`, or `.` (numbers, `+`, `-`, `_`, `.`, or most letters)
[INFO] [stderr] This was previously accepted but is being phased out; it will become a hard error in a future release.
[INFO] [stderr] For more information, see issue #8813 <https://github.com/rust-lang/cargo/issues/8813>, and please leave a comment if this will be a problem for your project.
[INFO] [stderr] warning: invalid character `:` in feature `cpu:cortex-m4f` in package embrs v0.1.0 (/opt/rustwide/workdir/embrs), characters must be Unicode XID characters, `+`, or `.` (numbers, `+`, `-`, `_`, `.`, or most letters)
[INFO] [stderr] This was previously accepted but is being phased out; it will become a hard error in a future release.
[INFO] [stderr] For more information, see issue #8813 <https://github.com/rust-lang/cargo/issues/8813>, and please leave a comment if this will be a problem for your project.
[INFO] [stderr] warning: invalid character `:` in feature `soc:stm32f407` in package embrs v0.1.0 (/opt/rustwide/workdir/embrs), characters must be Unicode XID characters, `+`, or `.` (numbers, `+`, `-`, `_`, `.`, or most letters)
[INFO] [stderr] This was previously accepted but is being phased out; it will become a hard error in a future release.
[INFO] [stderr] For more information, see issue #8813 <https://github.com/rust-lang/cargo/issues/8813>, and please leave a comment if this will be a problem for your project.
[INFO] [stderr] warning: invalid character `:` in feature `soc_family:stm32f4` in package embrs v0.1.0 (/opt/rustwide/workdir/embrs), characters must be Unicode XID characters, `+`, or `.` (numbers, `+`, `-`, `_`, `.`, or most letters)
[INFO] [stderr] This was previously accepted but is being phased out; it will become a hard error in a future release.
[INFO] [stderr] For more information, see issue #8813 <https://github.com/rust-lang/cargo/issues/8813>, and please leave a comment if this will be a problem for your project.
[INFO] [stderr] warning: invalid character `:` in feature `soc_family:stm32f4[01]` in package embrs v0.1.0 (/opt/rustwide/workdir/embrs), characters must be Unicode XID characters, `+`, or `.` (numbers, `+`, `-`, `_`, `.`, or most letters)
[INFO] [stderr] This was previously accepted but is being phased out; it will become a hard error in a future release.
[INFO] [stderr] For more information, see issue #8813 <https://github.com/rust-lang/cargo/issues/8813>, and please leave a comment if this will be a problem for your project.
[INFO] [stderr] warning: invalid character `[` in feature `soc_family:stm32f4[01]` in package embrs v0.1.0 (/opt/rustwide/workdir/embrs), characters must be Unicode XID characters, `+`, or `.` (numbers, `+`, `-`, `_`, `.`, or most letters)
[INFO] [stderr] This was previously accepted but is being phased out; it will become a hard error in a future release.
[INFO] [stderr] For more information, see issue #8813 <https://github.com/rust-lang/cargo/issues/8813>, and please leave a comment if this will be a problem for your project.
[INFO] [stderr] warning: invalid character `]` in feature `soc_family:stm32f4[01]` in package embrs v0.1.0 (/opt/rustwide/workdir/embrs), characters must be Unicode XID characters, `+`, or `.` (numbers, `+`, `-`, `_`, `.`, or most letters)
[INFO] [stderr] This was previously accepted but is being phased out; it will become a hard error in a future release.
[INFO] [stderr] For more information, see issue #8813 <https://github.com/rust-lang/cargo/issues/8813>, and please leave a comment if this will be a problem for your project.
[INFO] [stderr]    Compiling bitflags v0.7.0
[INFO] [stderr]    Compiling embrs v0.1.0 (/opt/rustwide/workdir/embrs)
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]  --> embrs/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: expected type, found `"=&r"`
[INFO] [stdout]    --> embrs/src/arm_m/reg.rs:78:24
[INFO] [stdout]     |
[INFO] [stdout] 78  |                      : "=&r"(tmp)
[INFO] [stdout]     |                      - ^^^^^ expected type
[INFO] [stdout]     |                      |
[INFO] [stdout]     |                      tried to parse a type due to this
[INFO] [stdout] ...
[INFO] [stdout] 126 | ex_impl!(u32);
[INFO] [stdout]     | -------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `atomic_rmw` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: expected type, found `"=&r"`
[INFO] [stdout]    --> embrs/src/arm_m/reg.rs:78:24
[INFO] [stdout]     |
[INFO] [stdout] 78  |                      : "=&r"(tmp)
[INFO] [stdout]     |                      - ^^^^^ expected type
[INFO] [stdout]     |                      |
[INFO] [stdout]     |                      tried to parse a type due to this
[INFO] [stdout] ...
[INFO] [stdout] 126 | ex_impl!(u32);
[INFO] [stdout]     | -------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `atomic_rmw` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: expected type, found `"=&r"`
[INFO] [stdout]    --> embrs/src/arm_m/reg.rs:78:24
[INFO] [stdout]     |
[INFO] [stdout] 78  |                      : "=&r"(tmp)
[INFO] [stdout]     |                      - ^^^^^ expected type
[INFO] [stdout]     |                      |
[INFO] [stdout]     |                      tried to parse a type due to this
[INFO] [stdout] ...
[INFO] [stdout] 126 | ex_impl!(u32);
[INFO] [stdout]     | -------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `atomic_rmw` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: expected type, found `"=&r"`
[INFO] [stdout]    --> embrs/src/arm_m/reg.rs:78:24
[INFO] [stdout]     |
[INFO] [stdout] 78  |                      : "=&r"(tmp)
[INFO] [stdout]     |                      - ^^^^^ expected type
[INFO] [stdout]     |                      |
[INFO] [stdout]     |                      tried to parse a type due to this
[INFO] [stdout] ...
[INFO] [stdout] 127 | ex_impl!(u16);
[INFO] [stdout]     | -------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `atomic_rmw` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: expected type, found `"=&r"`
[INFO] [stdout]    --> embrs/src/arm_m/reg.rs:78:24
[INFO] [stdout]     |
[INFO] [stdout] 78  |                      : "=&r"(tmp)
[INFO] [stdout]     |                      - ^^^^^ expected type
[INFO] [stdout]     |                      |
[INFO] [stdout]     |                      tried to parse a type due to this
[INFO] [stdout] ...
[INFO] [stdout] 127 | ex_impl!(u16);
[INFO] [stdout]     | -------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `atomic_rmw` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: expected type, found `"=&r"`
[INFO] [stdout]    --> embrs/src/arm_m/reg.rs:78:24
[INFO] [stdout]     |
[INFO] [stdout] 78  |                      : "=&r"(tmp)
[INFO] [stdout]     |                      - ^^^^^ expected type
[INFO] [stdout]     |                      |
[INFO] [stdout]     |                      tried to parse a type due to this
[INFO] [stdout] ...
[INFO] [stdout] 127 | ex_impl!(u16);
[INFO] [stdout]     | -------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `atomic_rmw` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: expected type, found `"=&r"`
[INFO] [stdout]    --> embrs/src/arm_m/reg.rs:78:24
[INFO] [stdout]     |
[INFO] [stdout] 78  |                      : "=&r"(tmp)
[INFO] [stdout]     |                      - ^^^^^ expected type
[INFO] [stdout]     |                      |
[INFO] [stdout]     |                      tried to parse a type due to this
[INFO] [stdout] ...
[INFO] [stdout] 128 | ex_impl!(u8);
[INFO] [stdout]     | ------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `atomic_rmw` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: expected type, found `"=&r"`
[INFO] [stdout]    --> embrs/src/arm_m/reg.rs:78:24
[INFO] [stdout]     |
[INFO] [stdout] 78  |                      : "=&r"(tmp)
[INFO] [stdout]     |                      - ^^^^^ expected type
[INFO] [stdout]     |                      |
[INFO] [stdout]     |                      tried to parse a type due to this
[INFO] [stdout] ...
[INFO] [stdout] 128 | ex_impl!(u8);
[INFO] [stdout]     | ------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `atomic_rmw` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: expected type, found `"=&r"`
[INFO] [stdout]    --> embrs/src/arm_m/reg.rs:78:24
[INFO] [stdout]     |
[INFO] [stdout] 78  |                      : "=&r"(tmp)
[INFO] [stdout]     |                      - ^^^^^ expected type
[INFO] [stdout]     |                      |
[INFO] [stdout]     |                      tried to parse a type due to this
[INFO] [stdout] ...
[INFO] [stdout] 128 | ex_impl!(u8);
[INFO] [stdout]     | ------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `atomic_rmw` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: the legacy LLVM-style asm! syntax is no longer supported
[INFO] [stdout]   --> embrs/src/arm_m/mod.rs:14:9
[INFO] [stdout]    |
[INFO] [stdout] 14 |           asm!("msr PRIMASK, $0"
[INFO] [stdout]    |           ^---
[INFO] [stdout]    |           |
[INFO] [stdout]    |  _________help: replace with: `llvm_asm!`
[INFO] [stdout]    | |
[INFO] [stdout] 15 | |              :: "r"(val)
[INFO] [stdout] 16 | |              :: "volatile")
[INFO] [stdout]    | |___________________________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: consider migrating to the new asm! syntax specified in RFC 2873
[INFO] [stdout]    = note: alternatively, switch to llvm_asm! to keep your code working as it is
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: the legacy LLVM-style asm! syntax is no longer supported
[INFO] [stdout]   --> embrs/src/arm_m/mod.rs:24:9
[INFO] [stdout]    |
[INFO] [stdout] 24 |         asm!("isb" :::: "volatile")
[INFO] [stdout]    |         ----^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: replace with: `llvm_asm!`
[INFO] [stdout]    |
[INFO] [stdout]    = note: consider migrating to the new asm! syntax specified in RFC 2873
[INFO] [stdout]    = note: alternatively, switch to llvm_asm! to keep your code working as it is
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: the legacy LLVM-style asm! syntax is no longer supported
[INFO] [stdout]   --> embrs/src/arm_m/mod.rs:32:9
[INFO] [stdout]    |
[INFO] [stdout] 32 |         asm!("dsb" :::: "volatile")
[INFO] [stdout]    |         ----^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: replace with: `llvm_asm!`
[INFO] [stdout]    |
[INFO] [stdout]    = note: consider migrating to the new asm! syntax specified in RFC 2873
[INFO] [stdout]    = note: alternatively, switch to llvm_asm! to keep your code working as it is
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: the legacy LLVM-style asm! syntax is no longer supported
[INFO] [stdout]   --> embrs/src/arm_m/mod.rs:40:9
[INFO] [stdout]    |
[INFO] [stdout] 40 |         asm!("dmb" :::: "volatile")
[INFO] [stdout]    |         ----^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: replace with: `llvm_asm!`
[INFO] [stdout]    |
[INFO] [stdout]    = note: consider migrating to the new asm! syntax specified in RFC 2873
[INFO] [stdout]    = note: alternatively, switch to llvm_asm! to keep your code working as it is
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: the legacy LLVM-style asm! syntax is no longer supported
[INFO] [stdout]   --> embrs/src/arm_m/mod.rs:47:9
[INFO] [stdout]    |
[INFO] [stdout] 47 |         asm!("wfi" :::: "volatile")
[INFO] [stdout]    |         ----^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: replace with: `llvm_asm!`
[INFO] [stdout]    |
[INFO] [stdout]    = note: consider migrating to the new asm! syntax specified in RFC 2873
[INFO] [stdout]    = note: alternatively, switch to llvm_asm! to keep your code working as it is
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> embrs/src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(asm)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> embrs/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]  --> embrs/src/lib.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![feature(lang_items)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> embrs/src/lib.rs:4:1
[INFO] [stdout]   |
[INFO] [stdout] 4 | #![feature(naked_functions)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused macro definition
[INFO] [stdout]   --> embrs/src/arm_m/reg.rs:89:1
[INFO] [stdout]    |
[INFO] [stdout] 89 | / macro_rules! ex_suffix {
[INFO] [stdout] 90 | |     (u32) => { "" };
[INFO] [stdout] 91 | |     (i32) => { "" };
[INFO] [stdout] 92 | |     (u16) => { "h" };
[INFO] [stdout] ...  |
[INFO] [stdout] 95 | |     (i8) => { "b" };
[INFO] [stdout] 96 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_macros)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> embrs/src/stm32f4/dma.rs:91:1
[INFO] [stdout]     |
[INFO] [stdout] 91  | / bitflags! {
[INFO] [stdout] 92  | |     /// The set of interrupt bit flags that can appear for a given DMA stream.
[INFO] [stdout] 93  | |     /// These are used to indicate stream status (in the Interrupt Status
[INFO] [stdout] 94  | |     /// Registers) and to change it (in the Interrupt Flag Clear Registers).
[INFO] [stdout] ...   |
[INFO] [stdout] 101 | |     }
[INFO] [stdout] 102 | | }
[INFO] [stdout]     | |_^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout]     = note: this warning originates in the macro `bitflags` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> embrs/src/stm32f4/dma.rs:91:1
[INFO] [stdout]     |
[INFO] [stdout] 91  | / bitflags! {
[INFO] [stdout] 92  | |     /// The set of interrupt bit flags that can appear for a given DMA stream.
[INFO] [stdout] 93  | |     /// These are used to indicate stream status (in the Interrupt Status
[INFO] [stdout] 94  | |     /// Registers) and to change it (in the Interrupt Flag Clear Registers).
[INFO] [stdout] ...   |
[INFO] [stdout] 101 | |     }
[INFO] [stdout] 102 | | }
[INFO] [stdout]     | |_^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `bitflags` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> embrs/src/stm32f4/gpio.rs:81:1
[INFO] [stdout]     |
[INFO] [stdout] 81  | / bitflags! {
[INFO] [stdout] 82  | |     /// Names a group of pins on a single GPIO port.  The STM32F4 GPIO is
[INFO] [stdout] 83  | |     /// designed so that most operations can be applied to any subset of pins
[INFO] [stdout] 84  | |     /// for the same cost as a single pin, so we expose that oddity here.
[INFO] [stdout] ...   |
[INFO] [stdout] 104 | |     }
[INFO] [stdout] 105 | | }
[INFO] [stdout]     | |_^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `bitflags` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> embrs/src/stm32f4/gpio.rs:81:1
[INFO] [stdout]     |
[INFO] [stdout] 81  | / bitflags! {
[INFO] [stdout] 82  | |     /// Names a group of pins on a single GPIO port.  The STM32F4 GPIO is
[INFO] [stdout] 83  | |     /// designed so that most operations can be applied to any subset of pins
[INFO] [stdout] 84  | |     /// for the same cost as a single pin, so we expose that oddity here.
[INFO] [stdout] ...   |
[INFO] [stdout] 104 | |     }
[INFO] [stdout] 105 | | }
[INFO] [stdout]     | |_^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `bitflags` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0522]: definition of an unknown language item: `panic_fmt`
[INFO] [stdout]  --> embrs/src/lang.rs:6:1
[INFO] [stdout]   |
[INFO] [stdout] 6 | #[lang = "panic_fmt"]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^ definition of unknown language item `panic_fmt`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 20 previous errors; 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0522, E0554, E0557.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0522`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `embrs`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "09757432791ac12ae01a6c2b97e62c1791d413849eed4a9bca81caa407c72d25", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "09757432791ac12ae01a6c2b97e62c1791d413849eed4a9bca81caa407c72d25", kill_on_drop: false }`
[INFO] [stdout] 09757432791ac12ae01a6c2b97e62c1791d413849eed4a9bca81caa407c72d25
