[INFO] fetching crate ekko 0.7.1...
[INFO] checking ekko-0.7.1 against try#c05ee43175e02d208faed1fcc0f436c56e48bba6 for pr-92413
[INFO] extracting crate ekko 0.7.1 into /workspace/builds/worker-20/source
[INFO] validating manifest of crates.io crate ekko 0.7.1 on toolchain c05ee43175e02d208faed1fcc0f436c56e48bba6
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c05ee43175e02d208faed1fcc0f436c56e48bba6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate ekko 0.7.1
[INFO] finished tweaking crates.io crate ekko 0.7.1
[INFO] tweaked toml for crates.io crate ekko 0.7.1 written to /workspace/builds/worker-20/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c05ee43175e02d208faed1fcc0f436c56e48bba6" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c05ee43175e02d208faed1fcc0f436c56e48bba6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/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:a429bb59b7a3b4e7270a4b4c243bb115fc561d8f62ec34ef63a0a36cabf65dfd" "/opt/rustwide/cargo-home/bin/cargo" "+c05ee43175e02d208faed1fcc0f436c56e48bba6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] afe98884c00614833e79f83f4438105ef33333e9d1b53ea97e340af882ebed34
[INFO] running `Command { std: "docker" "start" "-a" "afe98884c00614833e79f83f4438105ef33333e9d1b53ea97e340af882ebed34", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "afe98884c00614833e79f83f4438105ef33333e9d1b53ea97e340af882ebed34", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "afe98884c00614833e79f83f4438105ef33333e9d1b53ea97e340af882ebed34", kill_on_drop: false }`
[INFO] [stdout] afe98884c00614833e79f83f4438105ef33333e9d1b53ea97e340af882ebed34
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/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:a429bb59b7a3b4e7270a4b4c243bb115fc561d8f62ec34ef63a0a36cabf65dfd" "/opt/rustwide/cargo-home/bin/cargo" "+c05ee43175e02d208faed1fcc0f436c56e48bba6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1d3b5ef124cd532dbb3a417bd7e2a770c6f75ca32c3641e9974a8c0026a69fcd
[INFO] running `Command { std: "docker" "start" "-a" "1d3b5ef124cd532dbb3a417bd7e2a770c6f75ca32c3641e9974a8c0026a69fcd", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.112
[INFO] [stderr]    Compiling proc-macro2 v1.0.36
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling syn v1.0.85
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking ppv-lite86 v0.2.16
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]    Compiling quote v1.0.14
[INFO] [stderr]     Checking getrandom v0.2.3
[INFO] [stderr]     Checking socket2 v0.4.2
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.4
[INFO] [stderr]    Compiling thiserror-impl v1.0.30
[INFO] [stderr]     Checking thiserror v1.0.30
[INFO] [stderr]     Checking ekko v0.7.1 (/opt/rustwide/workdir)
[INFO] [stdout] error: lifetime parameter `'b` never used
[INFO] [stdout]    --> src/packets.rs:129:17
[INFO] [stdout]     |
[INFO] [stdout] 129 |     fn new_ipv6<'b>(buf: &'a mut [u8], pkt: (u16, u16), net: ([u16; 8], [u16; 8])) -> Result<EkkoPacket<'a>, EkkoError> {
[INFO] [stdout]     |                -^^- help: elide the unused lifetime
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[deny(unused_lifetimes)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: lifetime parameter `'b` never used
[INFO] [stdout]    --> src/packets.rs:129:17
[INFO] [stdout]     |
[INFO] [stdout] 129 |     fn new_ipv6<'b>(buf: &'a mut [u8], pkt: (u16, u16), net: ([u16; 8], [u16; 8])) -> Result<EkkoPacket<'a>, EkkoError> {
[INFO] [stdout]     |                -^^- help: elide the unused lifetime
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[deny(unused_lifetimes)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `ekko` due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "1d3b5ef124cd532dbb3a417bd7e2a770c6f75ca32c3641e9974a8c0026a69fcd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1d3b5ef124cd532dbb3a417bd7e2a770c6f75ca32c3641e9974a8c0026a69fcd", kill_on_drop: false }`
[INFO] [stdout] 1d3b5ef124cd532dbb3a417bd7e2a770c6f75ca32c3641e9974a8c0026a69fcd