[INFO] fetching crate tetsy-jsonrpc-derive 15.1.0...
[INFO] checking tetsy-jsonrpc-derive-15.1.0 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] extracting crate tetsy-jsonrpc-derive 15.1.0 into /workspace/builds/worker-3-tc1/source
[INFO] validating manifest of crates.io crate tetsy-jsonrpc-derive 15.1.0 on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate tetsy-jsonrpc-derive 15.1.0
[INFO] finished tweaking crates.io crate tetsy-jsonrpc-derive 15.1.0
[INFO] tweaked toml for crates.io crate tetsy-jsonrpc-derive 15.1.0 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate crates.io crate tetsy-jsonrpc-derive 15.1.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded crossbeam-deque v0.7.3
[INFO] [stderr]   Downloaded syn v1.0.63
[INFO] [stderr]   Downloaded tinyvec v1.1.1
[INFO] [stderr]   Downloaded bstr v0.2.15
[INFO] [stderr]   Downloaded regex v1.4.4
[INFO] [stderr]   Downloaded tetsy-jsonrpc-core v15.1.0
[INFO] [stderr]   Downloaded tetsy-jsonrpc-server-utils v15.1.0
[INFO] [stderr]   Downloaded tetsy-jsonrpc-tcp-server v15.1.0
[INFO] [stderr]   Downloaded trybuild v1.0.41
[INFO] [stderr]   Downloaded tetsy-jsonrpc-core-client v15.1.0
[INFO] [stderr]   Downloaded tetsy-jsonrpc-client-transports v15.1.0
[INFO] [stderr]   Downloaded tetsy-jsonrpc-pubsub v15.1.0
[INFO] [stderr]   Downloaded libc v0.2.88
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 26b525132f02bd6d5f27b56b8be9507fe6d8039a6a3b781264931b27a3859457
[INFO] running `Command { std: "docker" "start" "-a" "26b525132f02bd6d5f27b56b8be9507fe6d8039a6a3b781264931b27a3859457", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "26b525132f02bd6d5f27b56b8be9507fe6d8039a6a3b781264931b27a3859457", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "26b525132f02bd6d5f27b56b8be9507fe6d8039a6a3b781264931b27a3859457", kill_on_drop: false }`
[INFO] [stdout] 26b525132f02bd6d5f27b56b8be9507fe6d8039a6a3b781264931b27a3859457
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4f7f4e9bbc32ace701a2040fa25bc29b3796d391f6ee52754f9d9ff9e3b3a840
[INFO] running `Command { std: "docker" "start" "-a" "4f7f4e9bbc32ace701a2040fa25bc29b3796d391f6ee52754f9d9ff9e3b3a840", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.88
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling unicode-xid v0.2.1
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[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling serde_derive v1.0.124
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[INFO] [stderr]    Compiling ryu v1.0.5
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[INFO] [stderr]    Compiling parking_lot_core v0.6.2
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[INFO] [stderr]     Checking tetsy-jsonrpc-derive v15.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking tetsy-jsonrpc-core v15.1.0
[INFO] [stderr]     Checking tetsy-jsonrpc-pubsub v15.1.0
[INFO] [stderr]     Checking tetsy-jsonrpc-server-utils v15.1.0
[INFO] [stderr]     Checking tetsy-jsonrpc-client-transports v15.1.0
[INFO] [stderr]     Checking tetsy-jsonrpc-tcp-server v15.1.0
[INFO] [stderr]     Checking tetsy-jsonrpc-core-client v15.1.0
[INFO] [stdout] warning: the item `serde_json` is imported redundantly
[INFO] [stdout]  --> tests/macros.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use serde_json;
[INFO] [stdout]   |     ^^^^^^^^^^ the item `serde_json` is already defined by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `serde_json` is imported redundantly
[INFO] [stdout]  --> tests/trailing.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use serde_json;
[INFO] [stdout]   |     ^^^^^^^^^^ the item `serde_json` is already defined by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `serde_json` is imported redundantly
[INFO] [stdout]  --> tests/pubsub-macros.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use serde_json;
[INFO] [stdout]   |     ^^^^^^^^^^ the item `serde_json` is already defined by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `futures` is imported redundantly
[INFO] [stdout]  --> examples/meta-macros.rs:5:26
[INFO] [stdout]   |
[INFO] [stdout] 5 | use tetsy_jsonrpc_core::{futures, Error, MetaIoHandler, Metadata, Result, Value};
[INFO] [stdout]   |                          ^^^^^^^ the item `futures` is already defined by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` 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] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 38.53s
[INFO] running `Command { std: "docker" "inspect" "4f7f4e9bbc32ace701a2040fa25bc29b3796d391f6ee52754f9d9ff9e3b3a840", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4f7f4e9bbc32ace701a2040fa25bc29b3796d391f6ee52754f9d9ff9e3b3a840", kill_on_drop: false }`
[INFO] [stdout] 4f7f4e9bbc32ace701a2040fa25bc29b3796d391f6ee52754f9d9ff9e3b3a840