[INFO] fetching crate tetsy-jsonrpc-tcp-server 15.1.0...
[INFO] checking tetsy-jsonrpc-tcp-server-15.1.0 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] extracting crate tetsy-jsonrpc-tcp-server 15.1.0 into /workspace/builds/worker-1-tc1/source
[INFO] validating manifest of crates.io crate tetsy-jsonrpc-tcp-server 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-tcp-server 15.1.0
[INFO] finished tweaking crates.io crate tetsy-jsonrpc-tcp-server 15.1.0
[INFO] tweaked toml for crates.io crate tetsy-jsonrpc-tcp-server 15.1.0 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] crate crates.io crate tetsy-jsonrpc-tcp-server 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 tetsy-jsonrpc-core v15.1.0
[INFO] [stderr]   Downloaded tetsy-jsonrpc-server-utils v15.1.0
[INFO] [stderr]   Downloaded globset v0.4.6
[INFO] [stderr]   Downloaded syn v1.0.63
[INFO] [stderr]   Downloaded regex-syntax v0.6.23
[INFO] [stderr]   Downloaded regex v1.4.4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 53404c2d3006b6e725717ebb29e6e5a759420279a3f6b2ab303a85d6279c6c8a
[INFO] running `Command { std: "docker" "start" "-a" "53404c2d3006b6e725717ebb29e6e5a759420279a3f6b2ab303a85d6279c6c8a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "53404c2d3006b6e725717ebb29e6e5a759420279a3f6b2ab303a85d6279c6c8a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "53404c2d3006b6e725717ebb29e6e5a759420279a3f6b2ab303a85d6279c6c8a", kill_on_drop: false }`
[INFO] [stdout] 53404c2d3006b6e725717ebb29e6e5a759420279a3f6b2ab303a85d6279c6c8a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] bffecc345dd9b92c7a9f9a7ac60bc1797e6683a0249f095558dd3e01a4c0e27d
[INFO] running `Command { std: "docker" "start" "-a" "bffecc345dd9b92c7a9f9a7ac60bc1797e6683a0249f095558dd3e01a4c0e27d", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.88
[INFO] [stderr]     Checking futures v0.1.31
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling memoffset v0.5.6
[INFO] [stderr]     Checking lock_api v0.3.4
[INFO] [stderr]    Compiling crossbeam-epoch v0.8.2
[INFO] [stderr]    Compiling syn v1.0.63
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling serde v1.0.124
[INFO] [stderr]    Compiling serde_json v1.0.64
[INFO] [stderr]    Compiling parking_lot_core v0.6.2
[INFO] [stderr]     Checking smallvec v0.6.14
[INFO] [stderr]    Compiling parking_lot v0.9.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling serde_derive v1.0.124
[INFO] [stderr]    Compiling version_check v0.9.2
[INFO] [stderr]     Checking regex-syntax v0.6.23
[INFO] [stderr]     Checking itoa v0.4.7
[INFO] [stderr]     Checking smallvec v1.6.1
[INFO] [stderr]    Compiling unicase v2.6.0
[INFO] [stderr]     Checking aho-corasick v0.7.15
[INFO] [stderr]     Checking bstr v0.2.15
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking crossbeam-queue v0.2.3
[INFO] [stderr]     Checking tokio-executor v0.1.10
[INFO] [stderr]     Checking tokio-sync v0.1.8
[INFO] [stderr]     Checking tokio-service v0.1.0
[INFO] [stderr]     Checking crossbeam-deque v0.7.3
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking net2 v0.2.37
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking parking_lot_core v0.7.2
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking tokio-current-thread v0.1.7
[INFO] [stderr]     Checking tokio-timer v0.2.13
[INFO] [stderr]     Checking bytes v0.4.12
[INFO] [stderr]     Checking parking_lot v0.10.2
[INFO] [stderr]     Checking tokio-threadpool v0.1.18
[INFO] [stderr]     Checking tokio-io v0.1.13
[INFO] [stderr]     Checking mio v0.6.23
[INFO] [stderr]     Checking tokio-codec v0.1.2
[INFO] [stderr]     Checking tokio-fs v0.1.7
[INFO] [stderr]     Checking regex v1.4.4
[INFO] [stderr]     Checking tokio-reactor v0.1.12
[INFO] [stderr]     Checking mio-uds v0.6.8
[INFO] [stderr]     Checking tokio-uds v0.2.7
[INFO] [stderr]     Checking tokio-tcp v0.1.4
[INFO] [stderr]     Checking tokio-udp v0.1.6
[INFO] [stderr]     Checking tokio v0.1.22
[INFO] [stderr]     Checking globset v0.4.6
[INFO] [stderr]     Checking env_logger v0.7.1
[INFO] [stderr]     Checking tetsy-jsonrpc-core v15.1.0
[INFO] [stderr]     Checking tetsy-jsonrpc-server-utils v15.1.0
[INFO] [stderr]     Checking tetsy-jsonrpc-tcp-server v15.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `std` is imported redundantly
[INFO] [stdout]  --> src/dispatch.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std;
[INFO] [stdout]   |     ^^^ the item `std` 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 `std` is imported redundantly
[INFO] [stdout]  --> src/server.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std;
[INFO] [stdout]   |     ^^^ the item `std` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `tokio_service` is imported redundantly
[INFO] [stdout]  --> src/service.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use tokio_service;
[INFO] [stdout]   |     ^^^^^^^^^^^^^ the item `tokio_service` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `std` is imported redundantly
[INFO] [stdout]  --> src/dispatch.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std;
[INFO] [stdout]   |     ^^^ the item `std` 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 `std` is imported redundantly
[INFO] [stdout]  --> src/server.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std;
[INFO] [stdout]   |     ^^^ the item `std` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `tokio_service` is imported redundantly
[INFO] [stdout]  --> src/service.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use tokio_service;
[INFO] [stdout]   |     ^^^^^^^^^^^^^ the item `tokio_service` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `env_logger` is imported redundantly
[INFO] [stdout]  --> examples/tcp.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use env_logger;
[INFO] [stdout]   |     ^^^^^^^^^^ the item `env_logger` 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: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 12.39s
[INFO] running `Command { std: "docker" "inspect" "bffecc345dd9b92c7a9f9a7ac60bc1797e6683a0249f095558dd3e01a4c0e27d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bffecc345dd9b92c7a9f9a7ac60bc1797e6683a0249f095558dd3e01a4c0e27d", kill_on_drop: false }`
[INFO] [stdout] bffecc345dd9b92c7a9f9a7ac60bc1797e6683a0249f095558dd3e01a4c0e27d