[INFO] fetching crate jrpc-macro 1.0.0...
[INFO] checking jrpc-macro-1.0.0 against try#8de4b308b608cded0ebccf658a0fc719bce87d4e for pr-89056
[INFO] extracting crate jrpc-macro 1.0.0 into /workspace/builds/worker-82/source
[INFO] validating manifest of crates.io crate jrpc-macro 1.0.0 on toolchain 8de4b308b608cded0ebccf658a0fc719bce87d4e
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate jrpc-macro 1.0.0
[INFO] finished tweaking crates.io crate jrpc-macro 1.0.0
[INFO] tweaked toml for crates.io crate jrpc-macro 1.0.0 written to /workspace/builds/worker-82/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "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" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "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-82/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-82/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a6f31e6af954f8c5d016f9c12938c2b3fe92033398d99b355a509e1f47797e91
[INFO] running `Command { std: "docker" "start" "-a" "a6f31e6af954f8c5d016f9c12938c2b3fe92033398d99b355a509e1f47797e91", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a6f31e6af954f8c5d016f9c12938c2b3fe92033398d99b355a509e1f47797e91", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a6f31e6af954f8c5d016f9c12938c2b3fe92033398d99b355a509e1f47797e91", kill_on_drop: false }`
[INFO] [stdout] a6f31e6af954f8c5d016f9c12938c2b3fe92033398d99b355a509e1f47797e91
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-82/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-82/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 67052be0206a9500fd8f94255672d749833e88acd3523ca475cbbba4d8414680
[INFO] running `Command { std: "docker" "start" "-a" "67052be0206a9500fd8f94255672d749833e88acd3523ca475cbbba4d8414680", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking unicode-xid v0.2.2
[INFO] [stderr]    Compiling syn v1.0.76
[INFO] [stderr]     Checking aho-corasick v0.7.18
[INFO] [stderr]     Checking proc-macro2 v1.0.29
[INFO] [stderr]     Checking quote v1.0.9
[INFO] [stderr]     Checking regex v1.5.4
[INFO] [stderr]     Checking Inflector v0.11.4
[INFO] [stderr]     Checking jrpc-macro v1.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `attrs`
[INFO] [stdout]    --> src/lib.rs:533:35
[INFO] [stdout]     |
[INFO] [stdout] 533 | fn rpc_param_name(pat: &syn::Pat, attrs: &[syn::Attribute]) -> syn::parse::Result<String> {
[INFO] [stdout]     |                                   ^^^^^ help: if this is intentional, prefix it with an underscore: `_attrs`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `attrs`
[INFO] [stdout]    --> src/lib.rs:533:35
[INFO] [stdout]     |
[INFO] [stdout] 533 | fn rpc_param_name(pat: &syn::Pat, attrs: &[syn::Attribute]) -> syn::parse::Result<String> {
[INFO] [stdout]     |                                   ^^^^^ help: if this is intentional, prefix it with an underscore: `_attrs`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 9.29s
[INFO] running `Command { std: "docker" "inspect" "67052be0206a9500fd8f94255672d749833e88acd3523ca475cbbba4d8414680", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "67052be0206a9500fd8f94255672d749833e88acd3523ca475cbbba4d8414680", kill_on_drop: false }`
[INFO] [stdout] 67052be0206a9500fd8f94255672d749833e88acd3523ca475cbbba4d8414680