[INFO] cloning repository https://github.com/AirborneEngineering/blethrs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/AirborneEngineering/blethrs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAirborneEngineering%2Fblethrs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAirborneEngineering%2Fblethrs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3851267ecea56179aeaf4ec485609b7fcbcf1a5c
[INFO] checking AirborneEngineering/blethrs against try#8b72f65b805cbe4c261de45030d663f524f27376 for pr-78991
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAirborneEngineering%2Fblethrs" "/workspace/builds/worker-3/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/AirborneEngineering/blethrs on toolchain 8b72f65b805cbe4c261de45030d663f524f27376
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8b72f65b805cbe4c261de45030d663f524f27376" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-3/source/.cargo/config
[INFO] started tweaking git repo https://github.com/AirborneEngineering/blethrs
[INFO] finished tweaking git repo https://github.com/AirborneEngineering/blethrs
[INFO] tweaked toml for git repo https://github.com/AirborneEngineering/blethrs written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/AirborneEngineering/blethrs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8b72f65b805cbe4c261de45030d663f524f27376" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded git2 v0.11.0
[INFO] [stderr]   Downloaded cargo-lock v4.0.1
[INFO] [stderr]   Downloaded smoltcp v0.6.0
[INFO] [stderr]   Downloaded built v0.4.0
[INFO] [stderr]   Downloaded managed v0.7.1
[INFO] [stderr]   Downloaded libgit2-sys v0.10.0
[INFO] [stderr]   Downloaded stm32f4 v0.10.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+8b72f65b805cbe4c261de45030d663f524f27376" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] cdb564ed21f559139dfeb2fc7c955198a11534f466918cb171fffc68c3fea61c
[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" "cdb564ed21f559139dfeb2fc7c955198a11534f466918cb171fffc68c3fea61c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cdb564ed21f559139dfeb2fc7c955198a11534f466918cb171fffc68c3fea61c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cdb564ed21f559139dfeb2fc7c955198a11534f466918cb171fffc68c3fea61c", kill_on_drop: false }`
[INFO] [stdout] cdb564ed21f559139dfeb2fc7c955198a11534f466918cb171fffc68c3fea61c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+8b72f65b805cbe4c261de45030d663f524f27376" "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] 611692cabf7e0344e79ec539b929752a62492428866838653ed187a14dbead40
[INFO] running `Command { std: "docker" "start" "-a" "611692cabf7e0344e79ec539b929752a62492428866838653ed187a14dbead40", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.17
[INFO] [stderr]    Compiling serde v1.0.106
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling pkg-config v0.3.17
[INFO] [stderr]    Compiling autocfg v1.0.0
[INFO] [stderr]    Compiling typenum v1.12.0
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling smallvec v1.3.0
[INFO] [stderr]    Compiling cortex-m v0.6.2
[INFO] [stderr]    Compiling percent-encoding v2.1.0
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]     Checking stable_deref_trait v1.1.1
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling cortex-m-rt v0.6.12
[INFO] [stderr]    Compiling proc-macro-hack v0.5.15
[INFO] [stderr]     Checking r0 v0.2.2
[INFO] [stderr]    Compiling cortex-m-semihosting v0.3.5
[INFO] [stderr]    Compiling stm32f4 v0.10.0
[INFO] [stderr]     Checking managed v0.7.1
[INFO] [stderr]     Checking panic-halt v0.2.0
[INFO] [stderr]    Compiling unicode-normalization v0.1.12
[INFO] [stderr]    Compiling proc-macro2 v1.0.10
[INFO] [stderr]    Compiling libc v0.2.69
[INFO] [stderr]    Compiling num-traits v0.2.11
[INFO] [stderr]    Compiling num-integer v0.1.42
[INFO] [stderr]     Checking smoltcp v0.6.0
[INFO] [stderr]    Compiling quote v1.0.3
[INFO] [stderr]    Compiling jobserver v0.1.21
[INFO] [stderr]    Compiling time v0.1.42
[INFO] [stderr]    Compiling cc v1.0.50
[INFO] [stderr]    Compiling idna v0.2.0
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/smoltcp-0.6.0/src/socket/mod.rs:132:34
[INFO] [stdout]     |
[INFO] [stdout] 132 |     pub(crate) fn meta(&self) -> &SocketMeta {
[INFO] [stdout]     |                   ----           ^^^^^^^^^^^ expected `&Meta`, found `()`
[INFO] [stdout]     |                   |
[INFO] [stdout]     |                   implicitly returns `()` as its body has no tail or `return` expression
[INFO] [stdout] 133 |         dispatch_socket!(self, |socket| &socket.meta)
[INFO] [stdout]     |                                                     - help: consider removing this semicolon
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/smoltcp-0.6.0/src/socket/mod.rs:136:42
[INFO] [stdout]     |
[INFO] [stdout] 136 |     pub(crate) fn meta_mut(&mut self) -> &mut SocketMeta {
[INFO] [stdout]     |                   --------               ^^^^^^^^^^^^^^^ expected `&mut Meta`, found `()`
[INFO] [stdout]     |                   |
[INFO] [stdout]     |                   implicitly returns `()` as its body has no tail or `return` expression
[INFO] [stdout] 137 |         dispatch_socket!(mut self, |socket| &mut socket.meta)
[INFO] [stdout]     |                                                             - help: consider removing this semicolon
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/smoltcp-0.6.0/src/socket/mod.rs:140:37
[INFO] [stdout]     |
[INFO] [stdout] 140 |     pub(crate) fn poll_at(&self) -> PollAt {
[INFO] [stdout]     |                   -------           ^^^^^^ expected enum `PollAt`, found `()`
[INFO] [stdout]     |                   |
[INFO] [stdout]     |                   implicitly returns `()` as its body has no tail or `return` expression
[INFO] [stdout] 141 |         dispatch_socket!(self, |socket| socket.poll_at())
[INFO] [stdout]     |                                                         - help: consider removing this semicolon
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking generic-array v0.12.3
[INFO] [stderr]     Checking generic-array v0.13.2
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `smoltcp`
[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" "611692cabf7e0344e79ec539b929752a62492428866838653ed187a14dbead40", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "611692cabf7e0344e79ec539b929752a62492428866838653ed187a14dbead40", kill_on_drop: false }`
[INFO] [stdout] 611692cabf7e0344e79ec539b929752a62492428866838653ed187a14dbead40