[INFO] cloning repository https://github.com/pmalmgren/iou-http
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/pmalmgren/iou-http" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpmalmgren%2Fiou-http", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpmalmgren%2Fiou-http'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 2b22654c53f29f400e8da1c82373761a3e02ab9e
[INFO] testing pmalmgren/iou-http against try#ce59db7a1b1b012fb2793c4641c1bdecad7a128b for pr-85530
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpmalmgren%2Fiou-http" "/workspace/builds/worker-12/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-12/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/pmalmgren/iou-http on toolchain ce59db7a1b1b012fb2793c4641c1bdecad7a128b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/pmalmgren/iou-http
[INFO] finished tweaking git repo https://github.com/pmalmgren/iou-http
[INFO] tweaked toml for git repo https://github.com/pmalmgren/iou-http written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate git repo https://github.com/pmalmgren/iou-http already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded io-uring v0.5.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "metadata" "--no-deps" "--format-version=1", 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] fe1873b39e8fb1b24cf6d85f284120d692d2100f9f725000c2e0eebdbb86567c
[INFO] running `Command { std: "docker" "start" "-a" "fe1873b39e8fb1b24cf6d85f284120d692d2100f9f725000c2e0eebdbb86567c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fe1873b39e8fb1b24cf6d85f284120d692d2100f9f725000c2e0eebdbb86567c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fe1873b39e8fb1b24cf6d85f284120d692d2100f9f725000c2e0eebdbb86567c", kill_on_drop: false }`
[INFO] [stdout] fe1873b39e8fb1b24cf6d85f284120d692d2100f9f725000c2e0eebdbb86567c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 164f80d8a4f68937898acec975becb03699e6be397594a0bf4fb0f0a923cbeab
[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" "164f80d8a4f68937898acec975becb03699e6be397594a0bf4fb0f0a923cbeab", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.94
[INFO] [stderr]    Compiling proc-macro2 v1.0.26
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling syn v1.0.72
[INFO] [stderr]    Compiling regex-syntax v0.6.25
[INFO] [stderr]    Compiling quick-error v1.2.3
[INFO] [stderr]    Compiling unicode-width v0.1.8
[INFO] [stderr]    Compiling httparse v1.4.1
[INFO] [stderr]    Compiling termcolor v1.1.2
[INFO] [stderr]    Compiling io-uring v0.5.1
[INFO] [stderr]    Compiling bytes v1.0.1
[INFO] [stderr]    Compiling vec_map v0.8.2
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling humantime v1.3.0
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling http v0.2.4
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling nix v0.20.0
[INFO] [stderr]    Compiling clap v2.33.3
[INFO] [stderr]    Compiling regex v1.5.4
[INFO] [stderr]    Compiling env_logger v0.7.1
[INFO] [stderr]    Compiling thiserror-impl v1.0.24
[INFO] [stderr]    Compiling pretty_env_logger v0.4.0
[INFO] [stderr]    Compiling thiserror v1.0.24
[INFO] [stderr]    Compiling iou-httpserver v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0658]: async closures are unstable
[INFO] [stdout]   --> src/main.rs:25:43
[INFO] [stdout]    |
[INFO] [stdout] 25 |     let mut server = Server::new(address, async move |_request| {
[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]    = help: to use an async block, remove the `||`: `async {`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Context`, `Waker`, `pin::Pin`
[INFO] [stdout]  --> src/server.rs:8:12
[INFO] [stdout]   |
[INFO] [stdout] 8 |     task::{Context, Poll, Waker},
[INFO] [stdout]   |            ^^^^^^^        ^^^^^
[INFO] [stdout] 9 |     pin::Pin,
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `poll` found for type parameter `F` in the current scope
[INFO] [stdout]    --> src/server.rs:252:35
[INFO] [stdout]     |
[INFO] [stdout] 252 |                 match task.future.poll() {
[INFO] [stdout]     |                                   ^^^^ method not found in `F`
[INFO] [stdout]     |
[INFO] [stdout] help: consider wrapping the receiver expression with the appropriate type
[INFO] [stdout]     |
[INFO] [stdout] 252 |                 match Pin::new(&mut task.future).poll() {
[INFO] [stdout]     |                       ^^^^^^^^^^^^^            ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0599, E0658.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0599`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `iou-httpserver`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "164f80d8a4f68937898acec975becb03699e6be397594a0bf4fb0f0a923cbeab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "164f80d8a4f68937898acec975becb03699e6be397594a0bf4fb0f0a923cbeab", kill_on_drop: false }`
[INFO] [stdout] 164f80d8a4f68937898acec975becb03699e6be397594a0bf4fb0f0a923cbeab