[INFO] fetching crate xi-rpc 0.3.0...
[INFO] checking xi-rpc-0.3.0 against try#998b6603a58e47f42ccce7a67943234e96b6839e for pr-143170
[INFO] extracting crate xi-rpc 0.3.0 into /workspace/builds/worker-6-tc2/source
[INFO] started tweaking crates.io crate xi-rpc 0.3.0
[INFO] finished tweaking crates.io crate xi-rpc 0.3.0
[INFO] tweaked toml for crates.io crate xi-rpc 0.3.0 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate xi-rpc 0.3.0 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 30 packages to latest compatible versions
[INFO] [stderr]       Adding crossbeam v0.7.3 (available: v0.8.4)
[INFO] [stderr]       Adding wasi v0.10.0+wasi-snapshot-preview1 (available: v0.10.2+wasi-snapshot-preview1)
[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-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 66e49468feb8130094923bdf6d02e73738fb9c768a0ad4624b971cb383e61c4a
[INFO] running `Command { std: "docker" "start" "-a" "66e49468feb8130094923bdf6d02e73738fb9c768a0ad4624b971cb383e61c4a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "66e49468feb8130094923bdf6d02e73738fb9c768a0ad4624b971cb383e61c4a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "66e49468feb8130094923bdf6d02e73738fb9c768a0ad4624b971cb383e61c4a", kill_on_drop: false }`
[INFO] [stdout] 66e49468feb8130094923bdf6d02e73738fb9c768a0ad4624b971cb383e61c4a
[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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cb952a564fd36d190b9c0f03cd6d33eeb23128dfdb98041d7c515d59e8ea2cb3
[INFO] running `Command { std: "docker" "start" "-a" "cb952a564fd36d190b9c0f03cd6d33eeb23128dfdb98041d7c515d59e8ea2cb3", kill_on_drop: false }`
[INFO] [stderr]     Checking crossbeam-channel v0.4.4
[INFO] [stderr]     Checking xi-trace v0.2.0
[INFO] [stderr]     Checking crossbeam v0.7.3
[INFO] [stderr]     Checking xi-rpc v0.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait `IdleProc` is never used
[INFO] [stdout]    --> src/lib.rs:161:7
[INFO] [stdout]     |
[INFO] [stdout] 161 | trait IdleProc: Send {
[INFO] [stdout]     |       ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `IdleProc` is never used
[INFO] [stdout]    --> src/lib.rs:161:7
[INFO] [stdout]     |
[INFO] [stdout] 161 | trait IdleProc: Send {
[INFO] [stdout]     |       ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.32s
[INFO] running `Command { std: "docker" "inspect" "cb952a564fd36d190b9c0f03cd6d33eeb23128dfdb98041d7c515d59e8ea2cb3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cb952a564fd36d190b9c0f03cd6d33eeb23128dfdb98041d7c515d59e8ea2cb3", kill_on_drop: false }`
[INFO] [stdout] cb952a564fd36d190b9c0f03cd6d33eeb23128dfdb98041d7c515d59e8ea2cb3