[INFO] fetching crate quinn 0.6.1...
[INFO] testing quinn-0.6.1 against 1.47.0 for beta-1.48-1
[INFO] extracting crate quinn 0.6.1 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate quinn 0.6.1 on toolchain 1.47.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate quinn 0.6.1
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate quinn 0.6.1
[INFO] tweaked toml for crates.io crate quinn 0.6.1 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate crates.io crate quinn 0.6.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 94d69e63784031535034ef5e1e570521a6de8b0c2fff316716eada913d175d01
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "94d69e63784031535034ef5e1e570521a6de8b0c2fff316716eada913d175d01", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "94d69e63784031535034ef5e1e570521a6de8b0c2fff316716eada913d175d01", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "94d69e63784031535034ef5e1e570521a6de8b0c2fff316716eada913d175d01", kill_on_drop: false }`
[INFO] [stdout] 94d69e63784031535034ef5e1e570521a6de8b0c2fff316716eada913d175d01
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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=warn" "-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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 4426cd21c33900faea27bfeaa9997ba4edd7c799832563d7cc582792560de73d
[INFO] running `Command { std: "docker" "start" "-a" "4426cd21c33900faea27bfeaa9997ba4edd7c799832563d7cc582792560de73d", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.17
[INFO] [stderr]    Compiling cc v1.0.50
[INFO] [stderr]    Compiling version_check v0.9.1
[INFO] [stderr]    Compiling untrusted v0.7.0
[INFO] [stderr]    Compiling rustversion v1.0.2
[INFO] [stderr]    Compiling proc-macro-nested v0.1.4
[INFO] [stderr]    Compiling futures-sink v0.3.4
[INFO] [stderr]    Compiling proc-macro-hack v0.5.15
[INFO] [stderr]    Compiling futures-core v0.3.4
[INFO] [stderr]    Compiling futures-io v0.3.4
[INFO] [stderr]    Compiling futures-task v0.3.4
[INFO] [stderr]    Compiling pin-project-lite v0.1.4
[INFO] [stderr]    Compiling tracing-core v0.1.10
[INFO] [stderr]    Compiling net2 v0.2.33
[INFO] [stderr]    Compiling iovec v0.1.4
[INFO] [stderr]    Compiling futures-channel v0.3.4
[INFO] [stderr]    Compiling proc-macro-error-attr v0.4.12
[INFO] [stderr]    Compiling proc-macro-error v0.4.12
[INFO] [stderr]    Compiling mio v0.6.21
[INFO] [stderr]    Compiling ring v0.16.12
[INFO] [stderr]    Compiling sct v0.6.0
[INFO] [stderr]    Compiling webpki v0.21.2
[INFO] [stderr]    Compiling ct-logs v0.6.0
[INFO] [stderr]    Compiling rustls v0.17.0
[INFO] [stderr]    Compiling syn-mid v0.5.0
[INFO] [stderr]    Compiling synstructure v0.12.3
[INFO] [stderr]    Compiling rustls-native-certs v0.3.0
[INFO] [stderr]    Compiling futures-macro v0.3.4
[INFO] [stderr]    Compiling tracing-attributes v0.1.7
[INFO] [stderr]    Compiling tokio-macros v0.2.5
[INFO] [stderr]    Compiling err-derive v0.2.3
[INFO] [stderr]    Compiling tokio v0.2.16
[INFO] [stderr]    Compiling futures-util v0.3.4
[INFO] [stderr]    Compiling tracing v0.1.13
[INFO] [stderr]    Compiling quinn-proto v0.6.1
[INFO] [stderr]    Compiling futures-executor v0.3.4
[INFO] [stderr]    Compiling futures v0.3.4
[INFO] [stderr]    Compiling quinn v0.6.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/connection.rs:225:13
[INFO] [stdout]     |
[INFO] [stdout] 225 |     fn poll(mut self: Pin<&mut Self>, cx: &mut Context) -> Poll<Self::Output> {
[INFO] [stdout]     |             ----^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/endpoint.rs:183:13
[INFO] [stdout]     |
[INFO] [stdout] 183 |     fn poll(mut self: Pin<&mut Self>, cx: &mut Context) -> Poll<Self::Output> {
[INFO] [stdout]     |             ----^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/endpoint.rs:412:18
[INFO] [stdout]     |
[INFO] [stdout] 412 |     fn poll_next(mut self: Pin<&mut Self>, cx: &mut Context) -> Poll<Option<Self::Item>> {
[INFO] [stdout]     |                  ----^^^^
[INFO] [stdout]     |                  |
[INFO] [stdout]     |                  help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 06s
[INFO] running `Command { std: "docker" "inspect" "4426cd21c33900faea27bfeaa9997ba4edd7c799832563d7cc582792560de73d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4426cd21c33900faea27bfeaa9997ba4edd7c799832563d7cc582792560de73d", kill_on_drop: false }`
[INFO] [stdout] 4426cd21c33900faea27bfeaa9997ba4edd7c799832563d7cc582792560de73d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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=warn" "-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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] af0cf5ac927e3d63223ba23a4852d546381da1b0ba5d3a05e864cd4bd8ab7b06
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "af0cf5ac927e3d63223ba23a4852d546381da1b0ba5d3a05e864cd4bd8ab7b06", kill_on_drop: false }`
[INFO] [stderr]    Compiling smallvec v1.2.0
[INFO] [stderr]    Compiling build_const v0.2.1
[INFO] [stderr]    Compiling anyhow v1.0.28
[INFO] [stderr]    Compiling unwrap v1.2.1
[INFO] [stderr]    Compiling num-traits v0.2.11
[INFO] [stderr]    Compiling num-integer v0.1.42
[INFO] [stderr]    Compiling sharded-slab v0.0.8
[INFO] [stderr]    Compiling time v0.1.42
[INFO] [stderr]    Compiling dirs-sys v0.3.4
[INFO] [stderr]    Compiling clap v2.33.0
[INFO] [stderr]    Compiling pin-project-internal v0.4.8
[INFO] [stderr]    Compiling regex v1.3.6
[INFO] [stderr]    Compiling regex-automata v0.1.9
[INFO] [stderr]    Compiling structopt-derive v0.4.5
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/connection.rs:225:13
[INFO] [stdout]     |
[INFO] [stdout] 225 |     fn poll(mut self: Pin<&mut Self>, cx: &mut Context) -> Poll<Self::Output> {
[INFO] [stdout]     |             ----^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/endpoint.rs:183:13
[INFO] [stdout]     |
[INFO] [stdout] 183 |     fn poll(mut self: Pin<&mut Self>, cx: &mut Context) -> Poll<Self::Output> {
[INFO] [stdout]     |             ----^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/endpoint.rs:412:18
[INFO] [stdout]     |
[INFO] [stdout] 412 |     fn poll_next(mut self: Pin<&mut Self>, cx: &mut Context) -> Poll<Option<Self::Item>> {
[INFO] [stdout]     |                  ----^^^^
[INFO] [stdout]     |                  |
[INFO] [stdout]     |                  help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling directories v2.0.2
[INFO] [stderr]    Compiling crc v1.8.1
[INFO] [stderr]    Compiling unicode-normalization v0.1.12
[INFO] [stderr]    Compiling matchers v0.0.1
[INFO] [stderr]    Compiling idna v0.2.0
[INFO] [stderr]    Compiling pem v0.7.0
[INFO] [stderr]    Compiling chrono v0.4.11
[INFO] [stderr]    Compiling url v2.1.1
[INFO] [stderr]    Compiling yasna v0.3.1
[INFO] [stderr]    Compiling tracing-subscriber v0.2.3
[INFO] [stderr]    Compiling pin-project v0.4.8
[INFO] [stderr]    Compiling tracing-futures v0.2.3
[INFO] [stderr]    Compiling structopt v0.3.12
[INFO] [stderr]    Compiling rcgen v0.8.1
[INFO] [stderr]    Compiling quinn v0.6.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/connection.rs:225:13
[INFO] [stdout]     |
[INFO] [stdout] 225 |     fn poll(mut self: Pin<&mut Self>, cx: &mut Context) -> Poll<Self::Output> {
[INFO] [stdout]     |             ----^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/endpoint.rs:183:13
[INFO] [stdout]     |
[INFO] [stdout] 183 |     fn poll(mut self: Pin<&mut Self>, cx: &mut Context) -> Poll<Self::Output> {
[INFO] [stdout]     |             ----^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/endpoint.rs:412:18
[INFO] [stdout]     |
[INFO] [stdout] 412 |     fn poll_next(mut self: Pin<&mut Self>, cx: &mut Context) -> Poll<Option<Self::Item>> {
[INFO] [stdout]     |                  ----^^^^
[INFO] [stdout]     |                  |
[INFO] [stdout]     |                  help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `quinn`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name quinn --edition=2018 src/lib.rs --error-format=json --json=diagnostic-rendered-ansi --emit=dep-info,link -C embed-bitcode=no -C debuginfo=2 --test --cfg 'feature="certificate-transparency"' --cfg 'feature="default"' --cfg 'feature="native-certs"' --cfg 'feature="rustls"' --cfg 'feature="tls-rustls"' --cfg 'feature="webpki"' -C metadata=98a79f5fcdad0dfa -C extra-filename=-98a79f5fcdad0dfa --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern anyhow=/opt/rustwide/target/debug/deps/libanyhow-7bd260ac9773d942.rlib --extern bencher=/opt/rustwide/target/debug/deps/libbencher-dfb98151496a3340.rlib --extern bytes=/opt/rustwide/target/debug/deps/libbytes-db68a9932a33cb01.rlib --extern crc=/opt/rustwide/target/debug/deps/libcrc-e0ede9c0bac45539.rlib --extern directories=/opt/rustwide/target/debug/deps/libdirectories-eae77fe7979cc739.rlib --extern err_derive=/opt/rustwide/target/debug/deps/liberr_derive-4e746419655a60bf.so --extern futures=/opt/rustwide/target/debug/deps/libfutures-d71f8e68379f03cd.rlib --extern libc=/opt/rustwide/target/debug/deps/liblibc-6b9043bf2da5b6bc.rlib --extern mio=/opt/rustwide/target/debug/deps/libmio-b82ebb0f17c53f70.rlib --extern proto=/opt/rustwide/target/debug/deps/libquinn_proto-aaae0063d760a644.rlib --extern rand=/opt/rustwide/target/debug/deps/librand-90a4ee2d5c57d1b7.rlib --extern rcgen=/opt/rustwide/target/debug/deps/librcgen-8c2bccaca0fd346a.rlib --extern rustls=/opt/rustwide/target/debug/deps/librustls-d1d9993c56351619.rlib --extern structopt=/opt/rustwide/target/debug/deps/libstructopt-bd56b46c092ab3f3.rlib --extern tokio=/opt/rustwide/target/debug/deps/libtokio-b7bcce175f726285.rlib --extern tracing=/opt/rustwide/target/debug/deps/libtracing-4ce5f52fa1ed3eae.rlib --extern tracing_futures=/opt/rustwide/target/debug/deps/libtracing_futures-d28f4870df4898fd.rlib --extern tracing_subscriber=/opt/rustwide/target/debug/deps/libtracing_subscriber-77b2307694186fe8.rlib --extern unwrap=/opt/rustwide/target/debug/deps/libunwrap-f736f8f3cf7ae33d.rlib --extern url=/opt/rustwide/target/debug/deps/liburl-41bfe9783c8cbb17.rlib --extern webpki=/opt/rustwide/target/debug/deps/libwebpki-1c582045095cbd8c.rlib --cap-lints=warn -L native=/opt/rustwide/target/debug/build/ring-47842d924c890532/out` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "af0cf5ac927e3d63223ba23a4852d546381da1b0ba5d3a05e864cd4bd8ab7b06", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "af0cf5ac927e3d63223ba23a4852d546381da1b0ba5d3a05e864cd4bd8ab7b06", kill_on_drop: false }`
[INFO] [stdout] af0cf5ac927e3d63223ba23a4852d546381da1b0ba5d3a05e864cd4bd8ab7b06
