[INFO] cloning repository https://github.com/sindreij/network-test-harness
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/sindreij/network-test-harness" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsindreij%2Fnetwork-test-harness", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsindreij%2Fnetwork-test-harness'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9319a804a10da74c56d886d4b02e9e18950d544b
[INFO] checking sindreij/network-test-harness against master#39b841dfe36f90a7cd111e7f0c55f32594f6e578 for pr-77035
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsindreij%2Fnetwork-test-harness" "/workspace/builds/worker-13/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-13/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/sindreij/network-test-harness on toolchain 39b841dfe36f90a7cd111e7f0c55f32594f6e578
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+39b841dfe36f90a7cd111e7f0c55f32594f6e578" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/sindreij/network-test-harness
[INFO] finished tweaking git repo https://github.com/sindreij/network-test-harness
[INFO] tweaked toml for git repo https://github.com/sindreij/network-test-harness written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] crate git repo https://github.com/sindreij/network-test-harness already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+39b841dfe36f90a7cd111e7f0c55f32594f6e578" "fetch" "--locked" "--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-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+39b841dfe36f90a7cd111e7f0c55f32594f6e578" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6ce40da6c7b954ea27c019358790e36d872a40b1badb1c9848859ac117a5f1f6
[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" "6ce40da6c7b954ea27c019358790e36d872a40b1badb1c9848859ac117a5f1f6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6ce40da6c7b954ea27c019358790e36d872a40b1badb1c9848859ac117a5f1f6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6ce40da6c7b954ea27c019358790e36d872a40b1badb1c9848859ac117a5f1f6", kill_on_drop: false }`
[INFO] [stdout] 6ce40da6c7b954ea27c019358790e36d872a40b1badb1c9848859ac117a5f1f6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+39b841dfe36f90a7cd111e7f0c55f32594f6e578" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0b4d73dcbc9a1faf749020bce36e331c0ca38bd67ba185ef8a09ce28e6773a67
[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" "0b4d73dcbc9a1faf749020bce36e331c0ca38bd67ba185ef8a09ce28e6773a67", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking rand_core v0.4.0
[INFO] [stderr]     Checking slab v0.4.2
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[INFO] [stderr]     Checking futures-core-preview v0.3.0-alpha.16
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[INFO] [stderr]    Compiling proc-macro-hack v0.5.7
[INFO] [stderr]    Compiling snafu-derive v0.4.1
[INFO] [stderr]    Compiling structopt-derive v0.2.15
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[INFO] [stderr]     Checking structopt v0.2.15
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[INFO] [stdout] error[E0658]: async closures are unstable
[INFO] [stdout]   --> src/modes/never_body.rs:34:9
[INFO] [stdout]    |
[INFO] [stdout] 34 |         async move |()| -> Option<(Result<Vec<u8>, Error>, ())> {
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #62290 <https://github.com/rust-lang/rust/issues/62290> for more information
[INFO] [stdout]    = help: add `#![feature(async_closure)]` to the crate attributes to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: async closures are unstable
[INFO] [stdout]   --> src/modes/random.rs:37:9
[INFO] [stdout]    |
[INFO] [stdout] 37 |         async move |mut rng| -> Option<(Result<Vec<u8>, Error>, StdRng)> {
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #62290 <https://github.com/rust-lang/rust/issues/62290> for more information
[INFO] [stdout]    = help: add `#![feature(async_closure)]` to the crate attributes to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: async closures are unstable
[INFO] [stdout]   --> src/modes/random_text.rs:37:9
[INFO] [stdout]    |
[INFO] [stdout] 37 |         async move |mut rng| -> Option<(Result<String, Error>, StdRng)> {
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #62290 <https://github.com/rust-lang/rust/issues/62290> for more information
[INFO] [stdout]    = help: add `#![feature(async_closure)]` to the crate attributes to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: async closures are unstable
[INFO] [stdout]   --> src/modes/slow_body.rs:42:9
[INFO] [stdout]    |
[INFO] [stdout] 42 |         async move |mut data| -> Option<(Result<Vec<u8>, Error>, VecDeque<u8>)> {
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #62290 <https://github.com/rust-lang/rust/issues/62290> for more information
[INFO] [stdout]    = help: add `#![feature(async_closure)]` to the crate attributes to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: async closures are unstable
[INFO] [stdout]   --> src/modes/never_body.rs:34:9
[INFO] [stdout]    |
[INFO] [stdout] 34 |         async move |()| -> Option<(Result<Vec<u8>, Error>, ())> {
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #62290 <https://github.com/rust-lang/rust/issues/62290> for more information
[INFO] [stdout]    = help: add `#![feature(async_closure)]` to the crate attributes to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: async closures are unstable
[INFO] [stdout]   --> src/modes/random.rs:37:9
[INFO] [stdout]    |
[INFO] [stdout] 37 |         async move |mut rng| -> Option<(Result<Vec<u8>, Error>, StdRng)> {
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #62290 <https://github.com/rust-lang/rust/issues/62290> for more information
[INFO] [stdout]    = help: add `#![feature(async_closure)]` to the crate attributes to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: async closures are unstable
[INFO] [stdout]   --> src/modes/random_text.rs:37:9
[INFO] [stdout]    |
[INFO] [stdout] 37 |         async move |mut rng| -> Option<(Result<String, Error>, StdRng)> {
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #62290 <https://github.com/rust-lang/rust/issues/62290> for more information
[INFO] [stdout]    = help: add `#![feature(async_closure)]` to the crate attributes to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: async closures are unstable
[INFO] [stdout]   --> src/modes/slow_body.rs:42:9
[INFO] [stdout]    |
[INFO] [stdout] 42 |         async move |mut data| -> Option<(Result<Vec<u8>, Error>, VecDeque<u8>)> {
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #62290 <https://github.com/rust-lang/rust/issues/62290> for more information
[INFO] [stdout]    = help: add `#![feature(async_closure)]` to the crate attributes to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 4 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0658`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `crucio`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: aborting due to 4 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0658`.
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "0b4d73dcbc9a1faf749020bce36e331c0ca38bd67ba185ef8a09ce28e6773a67", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0b4d73dcbc9a1faf749020bce36e331c0ca38bd67ba185ef8a09ce28e6773a67", kill_on_drop: false }`
[INFO] [stdout] 0b4d73dcbc9a1faf749020bce36e331c0ca38bd67ba185ef8a09ce28e6773a67