[INFO] fetching crate nimble-host 0.0.17-dev...
[INFO] checking nimble-host-0.0.17-dev against try#93086cfebfccb79083c59d0d3b2052944bba643c for pr-146440-1
[INFO] extracting crate nimble-host 0.0.17-dev into /workspace/builds/worker-6-tc2/source
[INFO] started tweaking crates.io crate nimble-host 0.0.17-dev
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate nimble-host 0.0.17-dev
[INFO] tweaked toml for crates.io crate nimble-host 0.0.17-dev written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate nimble-host 0.0.17-dev on toolchain 93086cfebfccb79083c59d0d3b2052944bba643c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+93086cfebfccb79083c59d0d3b2052944bba643c" "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" "+93086cfebfccb79083c59d0d3b2052944bba643c" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 61 packages to latest compatible versions
[INFO] [stderr]       Adding monotonic-time-rs v0.0.5 (available: v0.0.10)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+93086cfebfccb79083c59d0d3b2052944bba643c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+93086cfebfccb79083c59d0d3b2052944bba643c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4294d95c2c2d96ad0b55c677c22888c4553976a0e2aab780887958b88470861f
[INFO] running `Command { std: "docker" "start" "-a" "4294d95c2c2d96ad0b55c677c22888c4553976a0e2aab780887958b88470861f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4294d95c2c2d96ad0b55c677c22888c4553976a0e2aab780887958b88470861f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4294d95c2c2d96ad0b55c677c22888c4553976a0e2aab780887958b88470861f", kill_on_drop: false }`
[INFO] [stdout] 4294d95c2c2d96ad0b55c677c22888c4553976a0e2aab780887958b88470861f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+93086cfebfccb79083c59d0d3b2052944bba643c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1c182b7748c83c85713595a9226604f2f326263100b4b6dd3527719e036f83f0
[INFO] running `Command { std: "docker" "start" "-a" "1c182b7748c83c85713595a9226604f2f326263100b4b6dd3527719e036f83f0", kill_on_drop: false }`
[INFO] [stderr]     Checking log v0.4.31
[INFO] [stderr]     Checking flood-rs v0.0.12
[INFO] [stderr]    Compiling proc-macro2 v1.0.106
[INFO] [stderr]    Compiling autocfg v1.5.1
[INFO] [stderr]     Checking monotonic-time-rs v0.0.5
[INFO] [stderr]     Checking tick-id v0.0.9
[INFO] [stderr]    Compiling unicode-ident v1.0.24
[INFO] [stderr]    Compiling quote v1.0.45
[INFO] [stderr]     Checking err-rs v0.0.4
[INFO] [stderr]     Checking seq-map v0.0.2
[INFO] [stderr]     Checking utf8parse v0.2.2
[INFO] [stderr]     Checking bit-array-rs v0.0.3
[INFO] [stderr]     Checking colorchoice v1.0.5
[INFO] [stderr]     Checking anstyle v1.0.14
[INFO] [stderr]     Checking app-version v0.0.2
[INFO] [stderr]     Checking is_terminal_polyfill v1.70.2
[INFO] [stderr]     Checking anstyle-query v1.1.5
[INFO] [stderr]     Checking tick-queue v0.0.2
[INFO] [stderr]     Checking nimble-participant v0.0.17-dev
[INFO] [stderr]     Checking nimble-ordered-datagram v0.0.17-dev
[INFO] [stderr]     Checking nimble-step v0.0.17-dev
[INFO] [stderr]     Checking freelist-rs v0.0.4
[INFO] [stderr]     Checking anstyle-parse v1.0.0
[INFO] [stderr]     Checking anstream v1.0.0
[INFO] [stderr]     Checking nimble-step-map v0.0.17-dev
[INFO] [stderr]     Checking hexify v0.0.3
[INFO] [stderr]     Checking nimble-blob-stream v0.0.17-dev
[INFO] [stderr]     Checking env_filter v1.0.1
[INFO] [stderr]     Checking nimble-sample-step v0.0.17-dev
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]     Checking env_logger v0.11.10
[INFO] [stderr]     Checking nimble-protocol v0.0.17-dev
[INFO] [stderr]     Checking datagram-chunker v0.0.2
[INFO] [stderr]     Checking nimble-host-logic v0.0.17-dev
[INFO] [stderr]    Compiling syn v2.0.117
[INFO] [stderr]     Checking metricator v0.0.6
[INFO] [stderr]     Checking nimble-layer v0.0.17-dev
[INFO] [stderr]     Checking nimble-host v0.0.17-dev (/opt/rustwide/workdir)
[INFO] [stdout] error: struct `ConnectionId` is never constructed
[INFO] [stdout]   --> src/lib.rs:55:12
[INFO] [stdout]    |
[INFO] [stdout] 55 | pub struct ConnectionId(u8);
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `pub` struct has private fields, no public constructor, and is not otherwise reachable through the external API, so consider providing a public constructor or removing it
[INFO] [stdout]    = note: `#[deny(unused_unconstructable_pub_structs)]` (part of `#[deny(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `nimble-host` (lib) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "1c182b7748c83c85713595a9226604f2f326263100b4b6dd3527719e036f83f0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1c182b7748c83c85713595a9226604f2f326263100b4b6dd3527719e036f83f0", kill_on_drop: false }`
[INFO] [stdout] 1c182b7748c83c85713595a9226604f2f326263100b4b6dd3527719e036f83f0
