[INFO] fetching crate internode 1.0.0...
[INFO] checking internode-1.0.0 against try#998b6603a58e47f42ccce7a67943234e96b6839e for pr-143170
[INFO] extracting crate internode 1.0.0 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate internode 1.0.0
[INFO] finished tweaking crates.io crate internode 1.0.0
[INFO] tweaked toml for crates.io crate internode 1.0.0 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate internode 1.0.0 on toolchain 998b6603a58e47f42ccce7a67943234e96b6839e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "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" "+998b6603a58e47f42ccce7a67943234e96b6839e" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 2 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] eef4dd3ef5f5e55b02f83626b3a6491c39a2be89a5c566fb6915c03ea4545e3a
[INFO] running `Command { std: "docker" "start" "-a" "eef4dd3ef5f5e55b02f83626b3a6491c39a2be89a5c566fb6915c03ea4545e3a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "eef4dd3ef5f5e55b02f83626b3a6491c39a2be89a5c566fb6915c03ea4545e3a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eef4dd3ef5f5e55b02f83626b3a6491c39a2be89a5c566fb6915c03ea4545e3a", kill_on_drop: false }`
[INFO] [stdout] eef4dd3ef5f5e55b02f83626b3a6491c39a2be89a5c566fb6915c03ea4545e3a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 851163a67ff0fdc79fb194736da957e18b1d50b412b249d625588f3feb0ad2cc
[INFO] running `Command { std: "docker" "start" "-a" "851163a67ff0fdc79fb194736da957e18b1d50b412b249d625588f3feb0ad2cc", kill_on_drop: false }`
[INFO] [stderr]     Checking genawaiter-macro v0.99.1
[INFO] [stderr]     Checking genawaiter v0.99.1
[INFO] [stderr]     Checking internode v1.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `guard` is never read
[INFO] [stdout]   --> src/internode_mutex_guard.rs:48:2
[INFO] [stdout]    |
[INFO] [stdout] 47 | struct InternodeMutexGuardIterOutgoing<'a, T: Neighbors> {
[INFO] [stdout]    |        ------------------------------- field in this struct
[INFO] [stdout] 48 |     guard: MutexGuard<'a, Option<T>>,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `guard` is never read
[INFO] [stdout]   --> src/internode_mutex_guard.rs:66:2
[INFO] [stdout]    |
[INFO] [stdout] 65 | struct InternodeMutexGuardIterIncoming<'a, T: Neighbors> {
[INFO] [stdout]    |        ------------------------------- field in this struct
[INFO] [stdout] 66 |     guard: MutexGuard<'a, Option<T>>,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `guard` is never read
[INFO] [stdout]   --> src/internode_mutex_guard.rs:48:2
[INFO] [stdout]    |
[INFO] [stdout] 47 | struct InternodeMutexGuardIterOutgoing<'a, T: Neighbors> {
[INFO] [stdout]    |        ------------------------------- field in this struct
[INFO] [stdout] 48 |     guard: MutexGuard<'a, Option<T>>,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `guard` is never read
[INFO] [stdout]   --> src/internode_mutex_guard.rs:66:2
[INFO] [stdout]    |
[INFO] [stdout] 65 | struct InternodeMutexGuardIterIncoming<'a, T: Neighbors> {
[INFO] [stdout]    |        ------------------------------- field in this struct
[INFO] [stdout] 66 |     guard: MutexGuard<'a, Option<T>>,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.56s
[INFO] running `Command { std: "docker" "inspect" "851163a67ff0fdc79fb194736da957e18b1d50b412b249d625588f3feb0ad2cc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "851163a67ff0fdc79fb194736da957e18b1d50b412b249d625588f3feb0ad2cc", kill_on_drop: false }`
[INFO] [stdout] 851163a67ff0fdc79fb194736da957e18b1d50b412b249d625588f3feb0ad2cc