[INFO] fetching crate smoltcp_null_modem 0.1.0-alpha4...
[INFO] testing smoltcp_null_modem-0.1.0-alpha4 against try#2440211fe03bc45c89b6dc1a3df18382ce91e32b for pr-146098-1
[INFO] extracting crate smoltcp_null_modem 0.1.0-alpha4 into /workspace/builds/worker-1-tc2/source
[INFO] started tweaking crates.io crate smoltcp_null_modem 0.1.0-alpha4
[INFO] finished tweaking crates.io crate smoltcp_null_modem 0.1.0-alpha4
[INFO] tweaked toml for crates.io crate smoltcp_null_modem 0.1.0-alpha4 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate smoltcp_null_modem 0.1.0-alpha4 on toolchain 2440211fe03bc45c89b6dc1a3df18382ce91e32b
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2440211fe03bc45c89b6dc1a3df18382ce91e32b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2440211fe03bc45c89b6dc1a3df18382ce91e32b" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 21 packages to latest compatible versions
[INFO] [stderr]       Adding heapless v0.8.0 (available: v0.9.1)
[INFO] [stderr]       Adding smoltcp v0.11.0 (available: v0.12.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2440211fe03bc45c89b6dc1a3df18382ce91e32b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+2440211fe03bc45c89b6dc1a3df18382ce91e32b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 34c5f3240f2a3b017b07798bdc7b20bfb92764e820e7da65530622112d58107a
[INFO] running `Command { std: "docker" "start" "-a" "34c5f3240f2a3b017b07798bdc7b20bfb92764e820e7da65530622112d58107a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "34c5f3240f2a3b017b07798bdc7b20bfb92764e820e7da65530622112d58107a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "34c5f3240f2a3b017b07798bdc7b20bfb92764e820e7da65530622112d58107a", kill_on_drop: false }`
[INFO] [stdout] 34c5f3240f2a3b017b07798bdc7b20bfb92764e820e7da65530622112d58107a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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" "RUSTDOCFLAGS=--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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+2440211fe03bc45c89b6dc1a3df18382ce91e32b" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 60b87f3f05d2e5363ba6389c4c833f9d96557154b774a68294d11b40bf09f150
[INFO] running `Command { std: "docker" "start" "-a" "60b87f3f05d2e5363ba6389c4c833f9d96557154b774a68294d11b40bf09f150", kill_on_drop: false }`
[INFO] [stderr]    Compiling heapless v0.8.0
[INFO] [stderr]    Compiling hash32 v0.3.1
[INFO] [stderr]    Compiling stable_deref_trait v1.2.0
[INFO] [stderr]    Compiling smoltcp v0.11.0
[INFO] [stderr]    Compiling cfg-if v1.0.3
[INFO] [stderr]    Compiling bitflags v1.3.2
[INFO] [stderr]    Compiling managed v0.8.0
[INFO] [stdout] error: You must enable at least one of the following features: proto-ipv4, proto-ipv6, proto-sixlowpan
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/smoltcp-0.11.0/src/lib.rs:99:1
[INFO] [stdout]    |
[INFO] [stdout] 99 | compile_error!("You must enable at least one of the following features: proto-ipv4, proto-ipv6, proto-sixlowpan");
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0004]: non-exhaustive patterns: type `&ip::Address` is non-empty
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/smoltcp-0.11.0/src/wire/ip.rs:113:15
[INFO] [stdout]     |
[INFO] [stdout] 113 |         match self {
[INFO] [stdout]     |               ^^^^
[INFO] [stdout]     |
[INFO] [stdout] note: `ip::Address` defined here
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/smoltcp-0.11.0/src/wire/ip.rs:88:10
[INFO] [stdout]     |
[INFO] [stdout]  88 | pub enum Address {
[INFO] [stdout]     |          ^^^^^^^
[INFO] [stdout]     = note: the matched value is of type `&ip::Address`
[INFO] [stdout]     = note: references are always considered inhabited
[INFO] [stdout] help: ensure that all possible cases are being handled by adding a match arm with a wildcard pattern as shown
[INFO] [stdout]     |
[INFO] [stdout] 113 ~         match self {
[INFO] [stdout] 114 +             _ => todo!(),
[INFO] [stdout] 115 +         }
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0004]: non-exhaustive patterns: type `&ip::Address` is non-empty
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/smoltcp-0.11.0/src/wire/ip.rs:123:15
[INFO] [stdout]     |
[INFO] [stdout] 123 |         match self {
[INFO] [stdout]     |               ^^^^
[INFO] [stdout]     |
[INFO] [stdout] note: `ip::Address` defined here
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/smoltcp-0.11.0/src/wire/ip.rs:88:10
[INFO] [stdout]     |
[INFO] [stdout]  88 | pub enum Address {
[INFO] [stdout]     |          ^^^^^^^
[INFO] [stdout]     = note: the matched value is of type `&ip::Address`
[INFO] [stdout]     = note: references are always considered inhabited
[INFO] [stdout] help: ensure that all possible cases are being handled by adding a match arm with a wildcard pattern as shown
[INFO] [stdout]     |
[INFO] [stdout] 123 ~         match self {
[INFO] [stdout] 124 +             _ => todo!(),
[INFO] [stdout] 125 +         }
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0004]: non-exhaustive patterns: type `&ip::Address` is non-empty
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/smoltcp-0.11.0/src/wire/ip.rs:133:15
[INFO] [stdout]     |
[INFO] [stdout] 133 |         match self {
[INFO] [stdout]     |               ^^^^
[INFO] [stdout]     |
[INFO] [stdout] note: `ip::Address` defined here
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/smoltcp-0.11.0/src/wire/ip.rs:88:10
[INFO] [stdout]     |
[INFO] [stdout]  88 | pub enum Address {
[INFO] [stdout]     |          ^^^^^^^
[INFO] [stdout]     = note: the matched value is of type `&ip::Address`
[INFO] [stdout]     = note: references are always considered inhabited
[INFO] [stdout] help: ensure that all possible cases are being handled by adding a match arm with a wildcard pattern as shown
[INFO] [stdout]     |
[INFO] [stdout] 133 ~         match self {
[INFO] [stdout] 134 +             _ => todo!(),
[INFO] [stdout] 135 +         }
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0004]: non-exhaustive patterns: type `&ip::Address` is non-empty
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/smoltcp-0.11.0/src/wire/ip.rs:143:15
[INFO] [stdout]     |
[INFO] [stdout] 143 |         match self {
[INFO] [stdout]     |               ^^^^
[INFO] [stdout]     |
[INFO] [stdout] note: `ip::Address` defined here
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/smoltcp-0.11.0/src/wire/ip.rs:88:10
[INFO] [stdout]     |
[INFO] [stdout]  88 | pub enum Address {
[INFO] [stdout]     |          ^^^^^^^
[INFO] [stdout]     = note: the matched value is of type `&ip::Address`
[INFO] [stdout]     = note: references are always considered inhabited
[INFO] [stdout] help: ensure that all possible cases are being handled by adding a match arm with a wildcard pattern as shown
[INFO] [stdout]     |
[INFO] [stdout] 143 ~         match self {
[INFO] [stdout] 144 +             _ => todo!(),
[INFO] [stdout] 145 +         }
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0004]: non-exhaustive patterns: type `&ip::Address` is non-empty
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/smoltcp-0.11.0/src/wire/ip.rs:153:15
[INFO] [stdout]     |
[INFO] [stdout] 153 |         match self {
[INFO] [stdout]     |               ^^^^
[INFO] [stdout]     |
[INFO] [stdout] note: `ip::Address` defined here
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/smoltcp-0.11.0/src/wire/ip.rs:88:10
[INFO] [stdout]     |
[INFO] [stdout]  88 | pub enum Address {
[INFO] [stdout]     |          ^^^^^^^
[INFO] [stdout]     = note: the matched value is of type `&ip::Address`
[INFO] [stdout]     = note: references are always considered inhabited
[INFO] [stdout] help: ensure that all possible cases are being handled by adding a match arm with a wildcard pattern as shown
[INFO] [stdout]     |
[INFO] [stdout] 153 ~         match self {
[INFO] [stdout] 154 +             _ => todo!(),
[INFO] [stdout] 155 +         }
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0004]: non-exhaustive patterns: type `&ip::Address` is non-empty
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/smoltcp-0.11.0/src/wire/ip.rs:163:15
[INFO] [stdout]     |
[INFO] [stdout] 163 |         match self {
[INFO] [stdout]     |               ^^^^
[INFO] [stdout]     |
[INFO] [stdout] note: `ip::Address` defined here
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/smoltcp-0.11.0/src/wire/ip.rs:88:10
[INFO] [stdout]     |
[INFO] [stdout]  88 | pub enum Address {
[INFO] [stdout]     |          ^^^^^^^
[INFO] [stdout]     = note: the matched value is of type `&ip::Address`
[INFO] [stdout]     = note: references are always considered inhabited
[INFO] [stdout] help: ensure that all possible cases are being handled by adding a match arm with a wildcard pattern as shown
[INFO] [stdout]     |
[INFO] [stdout] 163 ~         match self {
[INFO] [stdout] 164 +             _ => todo!(),
[INFO] [stdout] 165 +         }
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0004]: non-exhaustive patterns: type `&mut ip::Repr` is non-empty
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/smoltcp-0.11.0/src/wire/ip.rs:654:15
[INFO] [stdout]     |
[INFO] [stdout] 654 |         match self {
[INFO] [stdout]     |               ^^^^
[INFO] [stdout]     |
[INFO] [stdout] note: `ip::Repr` defined here
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/smoltcp-0.11.0/src/wire/ip.rs:546:10
[INFO] [stdout]     |
[INFO] [stdout] 546 | pub enum Repr {
[INFO] [stdout]     |          ^^^^
[INFO] [stdout]     = note: the matched value is of type `&mut ip::Repr`
[INFO] [stdout]     = note: references are always considered inhabited
[INFO] [stdout] help: ensure that all possible cases are being handled by adding a match arm with a wildcard pattern as shown
[INFO] [stdout]     |
[INFO] [stdout] 654 ~         match self {
[INFO] [stdout] 655 +             _ => todo!(),
[INFO] [stdout] 656 +         }
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0004`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `smoltcp` (lib) due to 8 previous errors
[INFO] running `Command { std: "docker" "inspect" "60b87f3f05d2e5363ba6389c4c833f9d96557154b774a68294d11b40bf09f150", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "60b87f3f05d2e5363ba6389c4c833f9d96557154b774a68294d11b40bf09f150", kill_on_drop: false }`
[INFO] [stdout] 60b87f3f05d2e5363ba6389c4c833f9d96557154b774a68294d11b40bf09f150