[INFO] cloning repository https://github.com/go-jar/quinn_demo
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/go-jar/quinn_demo" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgo-jar%2Fquinn_demo", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgo-jar%2Fquinn_demo'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a33330cecffb33db37063a5c063d505acff802cf
[INFO] checking go-jar/quinn_demo against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgo-jar%2Fquinn_demo" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/go-jar/quinn_demo on toolchain ceab6128fa48a616bfd3e3adf4bc80133b8ee223
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/go-jar/quinn_demo
[INFO] finished tweaking git repo https://github.com/go-jar/quinn_demo
[INFO] tweaked toml for git repo https://github.com/go-jar/quinn_demo written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/go-jar/quinn_demo 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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating git repository `https://github.com/stepancheg/rust-protobuf`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded quinn v0.8.1
[INFO] [stderr]   Downloaded yasna v0.5.0
[INFO] [stderr]   Downloaded pem v1.0.2
[INFO] [stderr]   Downloaded redox_syscall v0.2.11
[INFO] [stderr]   Downloaded rustls-native-certs v0.6.1
[INFO] [stderr]   Downloaded quinn-udp v0.1.1
[INFO] [stderr]   Downloaded anyhow v1.0.55
[INFO] [stderr]   Downloaded rcgen v0.9.2
[INFO] [stderr]   Downloaded quinn-proto v0.8.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 40bcd4d417ece237d0eec8b0f2f6ca309e568e6223137a7470287442e2c422ea
[INFO] running `Command { std: "docker" "start" "-a" "40bcd4d417ece237d0eec8b0f2f6ca309e568e6223137a7470287442e2c422ea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "40bcd4d417ece237d0eec8b0f2f6ca309e568e6223137a7470287442e2c422ea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "40bcd4d417ece237d0eec8b0f2f6ca309e568e6223137a7470287442e2c422ea", kill_on_drop: false }`
[INFO] [stdout] 40bcd4d417ece237d0eec8b0f2f6ca309e568e6223137a7470287442e2c422ea
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cb89ccff09e48c4b657cdc55eecb0a803a6d67dc147c207fdf8c6bd12448c656
[INFO] running `Command { std: "docker" "start" "-a" "cb89ccff09e48c4b657cdc55eecb0a803a6d67dc147c207fdf8c6bd12448c656", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.119
[INFO] [stderr]    Compiling proc-macro2 v1.0.36
[INFO] [stderr]    Compiling syn v1.0.86
[INFO] [stderr]     Checking once_cell v1.9.0
[INFO] [stderr]    Compiling cc v1.0.73
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]     Checking pin-project-lite v0.2.8
[INFO] [stderr]    Compiling futures-core v0.3.21
[INFO] [stderr]     Checking untrusted v0.7.1
[INFO] [stderr]     Checking spin v0.5.2
[INFO] [stderr]    Compiling parking_lot_core v0.9.1
[INFO] [stderr]     Checking smallvec v1.8.0
[INFO] [stderr]     Checking base64 v0.13.0
[INFO] [stderr]    Compiling futures-channel v0.3.21
[INFO] [stderr]     Checking lock_api v0.4.6
[INFO] [stderr]     Checking futures-sink v0.3.21
[INFO] [stderr]     Checking bytes v1.1.0
[INFO] [stderr]    Compiling futures-task v0.3.21
[INFO] [stderr]     Checking slab v0.4.5
[INFO] [stderr]    Compiling futures-util v0.3.21
[INFO] [stderr]     Checking futures-io v0.3.21
[INFO] [stderr]    Compiling rustls v0.20.4
[INFO] [stderr]     Checking ppv-lite86 v0.2.16
[INFO] [stderr]     Checking pin-utils v0.1.0
[INFO] [stderr]     Checking tracing-core v0.1.22
[INFO] [stderr]     Checking rustls-pemfile v0.2.1
[INFO] [stderr]     Checking tinyvec_macros v0.1.0
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]     Checking openssl-probe v0.1.5
[INFO] [stderr]     Checking tinyvec v1.5.1
[INFO] [stderr]     Checking num_threads v0.1.3
[INFO] [stderr]     Checking rustls-native-certs v0.6.1
[INFO] [stderr]    Compiling protobuf v3.0.0-alpha.8 (https://github.com/stepancheg/rust-protobuf#e207ffe2)
[INFO] [stderr]    Compiling anyhow v1.0.55
[INFO] [stderr]     Checking pem v1.0.2
[INFO] [stderr]     Checking rustls-pemfile v0.3.0
[INFO] [stderr]     Checking fxhash v0.2.1
[INFO] [stderr]    Compiling ring v0.16.20
[INFO] [stderr]    Compiling quote v1.0.15
[INFO] [stderr]     Checking socket2 v0.4.4
[INFO] [stderr]     Checking num_cpus v1.13.1
[INFO] [stderr]     Checking mio v0.8.0
[INFO] [stderr]     Checking getrandom v0.2.5
[INFO] [stderr]     Checking signal-hook-registry v1.4.0
[INFO] [stderr]     Checking mio v0.7.14
[INFO] [stderr]     Checking time v0.3.7
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking parking_lot v0.12.0
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking yasna v0.5.0
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking webpki v0.22.0
[INFO] [stderr]     Checking sct v0.7.0
[INFO] [stderr]     Checking rcgen v0.9.2
[INFO] [stderr]    Compiling tokio-macros v1.7.0
[INFO] [stderr]    Compiling futures-macro v0.3.21
[INFO] [stderr]    Compiling thiserror-impl v1.0.30
[INFO] [stderr]    Compiling tracing-attributes v0.1.19
[INFO] [stderr]     Checking tokio v1.17.0
[INFO] [stderr]     Checking thiserror v1.0.30
[INFO] [stderr]     Checking tracing v0.1.31
[INFO] [stderr]     Checking quinn-proto v0.8.1
[INFO] [stderr]     Checking futures-executor v0.3.21
[INFO] [stderr]     Checking futures v0.3.21
[INFO] [stderr]     Checking quinn-udp v0.1.1
[INFO] [stderr]     Checking tokio-stream v0.1.8
[INFO] [stderr]     Checking tokio-util v0.6.9
[INFO] [stderr]     Checking tokio-rustls v0.23.2
[INFO] [stderr]     Checking quinn v0.8.1
[INFO] [stderr]     Checking quinn_demo v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `tokio` is imported redundantly
[INFO] [stdout]   --> src/quic.rs:18:13
[INFO] [stdout]    |
[INFO] [stdout] 18 | use tokio::{self, sync::mpsc};
[INFO] [stdout]    |             ^^^^ the item `tokio` 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 `StreamExt` is imported redundantly
[INFO] [stdout]    --> src/quic.rs:438:9
[INFO] [stdout]     |
[INFO] [stdout] 437 |     use super::*;
[INFO] [stdout]     |         -------- the item `StreamExt` is already imported here
[INFO] [stdout] 438 |     use futures_util::StreamExt;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `SocketAddr` is imported redundantly
[INFO] [stdout]    --> src/quic.rs:439:29
[INFO] [stdout]     |
[INFO] [stdout] 437 |     use super::*;
[INFO] [stdout]     |         -------- the item `SocketAddr` is already imported here
[INFO] [stdout] 438 |     use futures_util::StreamExt;
[INFO] [stdout] 439 |     use std::{error::Error, net::SocketAddr};
[INFO] [stdout]     |                             ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.91s
[INFO] running `Command { std: "docker" "inspect" "cb89ccff09e48c4b657cdc55eecb0a803a6d67dc147c207fdf8c6bd12448c656", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cb89ccff09e48c4b657cdc55eecb0a803a6d67dc147c207fdf8c6bd12448c656", kill_on_drop: false }`
[INFO] [stdout] cb89ccff09e48c4b657cdc55eecb0a803a6d67dc147c207fdf8c6bd12448c656