[INFO] fetching crate msf-ice 0.2.1...
[INFO] checking msf-ice-0.2.1 against try#23ffd2897cbb44320ca18dfe4d05dbacb37d55e0 for pr-115950
[INFO] extracting crate msf-ice 0.2.1 into /workspace/builds/worker-0-tc2/source
[INFO] validating manifest of crates.io crate msf-ice 0.2.1 on toolchain 23ffd2897cbb44320ca18dfe4d05dbacb37d55e0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+23ffd2897cbb44320ca18dfe4d05dbacb37d55e0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate msf-ice 0.2.1
[INFO] finished tweaking crates.io crate msf-ice 0.2.1
[INFO] tweaked toml for crates.io crate msf-ice 0.2.1 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+23ffd2897cbb44320ca18dfe4d05dbacb37d55e0" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+23ffd2897cbb44320ca18dfe4d05dbacb37d55e0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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@sha256:4f8da3c744d2da974e54ce020a79f4ad54313e914ebeaab8fc086f07e8d8b066" "/opt/rustwide/cargo-home/bin/cargo" "+23ffd2897cbb44320ca18dfe4d05dbacb37d55e0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a18f4fe65025d8b0a76a65620da85c977d479b639c32de1d835764d435a4e455
[INFO] running `Command { std: "docker" "start" "-a" "a18f4fe65025d8b0a76a65620da85c977d479b639c32de1d835764d435a4e455", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a18f4fe65025d8b0a76a65620da85c977d479b639c32de1d835764d435a4e455", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a18f4fe65025d8b0a76a65620da85c977d479b639c32de1d835764d435a4e455", kill_on_drop: false }`
[INFO] [stdout] a18f4fe65025d8b0a76a65620da85c977d479b639c32de1d835764d435a4e455
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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@sha256:4f8da3c744d2da974e54ce020a79f4ad54313e914ebeaab8fc086f07e8d8b066" "/opt/rustwide/cargo-home/bin/cargo" "+23ffd2897cbb44320ca18dfe4d05dbacb37d55e0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f0686396da26068e4ec5b0a4ece6f49e23495ccc3c4435b28d93d205c692f5fb
[INFO] running `Command { std: "docker" "start" "-a" "f0686396da26068e4ec5b0a4ece6f49e23495ccc3c4435b28d93d205c692f5fb", kill_on_drop: false }`
[INFO] [stderr]    Compiling futures-core v0.3.28
[INFO] [stderr]    Compiling futures-task v0.3.28
[INFO] [stderr]    Compiling futures-channel v0.3.28
[INFO] [stderr]    Compiling futures-util v0.3.28
[INFO] [stderr]    Compiling slab v0.4.9
[INFO] [stderr]     Checking futures-sink v0.3.28
[INFO] [stderr]     Checking subtle v2.5.0
[INFO] [stderr]     Checking pin-project-lite v0.2.13
[INFO] [stderr]     Checking futures-io v0.3.28
[INFO] [stderr]     Checking crc-catalog v1.1.1
[INFO] [stderr]     Checking cpufeatures v0.2.9
[INFO] [stderr]     Checking mio v0.8.8
[INFO] [stderr]     Checking socket2 v0.5.4
[INFO] [stderr]     Checking crypto-common v0.1.6
[INFO] [stderr]    Compiling syn v2.0.37
[INFO] [stderr]     Checking crc v2.1.0
[INFO] [stderr]     Checking digest v0.10.7
[INFO] [stderr]     Checking sha-1 v0.10.1
[INFO] [stderr]     Checking hmac v0.12.1
[INFO] [stderr]     Checking tokio v1.32.0
[INFO] [stderr]     Checking msf-stun v0.1.0
[INFO] [stderr]    Compiling futures-macro v0.3.28
[INFO] [stderr]     Checking futures-executor v0.3.28
[INFO] [stderr]     Checking futures v0.3.28
[INFO] [stderr]     Checking msf-ice v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] error: captured variable cannot escape `FnMut` closure body
[INFO] [stdout]    --> src/socket.rs:542:17
[INFO] [stdout]     |
[INFO] [stdout] 525 |       async fn get_reflexive_addr<I>(&mut self, stun_servers: I) -> Option<(SocketAddr, SocketAddr)>
[INFO] [stdout]     |                                      --------- variable defined here
[INFO] [stdout] ...
[INFO] [stdout] 539 |               .map(|stun_server| {
[INFO] [stdout]     |                                - inferred to be a `FnMut` closure
[INFO] [stdout] 540 |                   let request = self.new_binding_request(stun_server, RC);
[INFO] [stdout]     |                                 ---- variable captured here
[INFO] [stdout] 541 |
[INFO] [stdout] 542 | /                 async move {
[INFO] [stdout] 543 | |                     if let Ok(reflexive_addr) = request.await {
[INFO] [stdout] 544 | |                         Some((reflexive_addr, stun_server))
[INFO] [stdout] 545 | |                     } else {
[INFO] [stdout] 546 | |                         None
[INFO] [stdout] 547 | |                     }
[INFO] [stdout] 548 | |                 }
[INFO] [stdout]     | |_________________^ returns an `async` block that contains a reference to a captured variable, which then escapes the closure body
[INFO] [stdout]     |
[INFO] [stdout]     = note: `FnMut` closures only have access to their captured variables while they are executing...
[INFO] [stdout]     = note: ...therefore, they cannot allow references to captured variables to escape
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: captured variable cannot escape `FnMut` closure body
[INFO] [stdout]    --> src/socket.rs:542:17
[INFO] [stdout]     |
[INFO] [stdout] 525 |       async fn get_reflexive_addr<I>(&mut self, stun_servers: I) -> Option<(SocketAddr, SocketAddr)>
[INFO] [stdout]     |                                      --------- variable defined here
[INFO] [stdout] ...
[INFO] [stdout] 539 |               .map(|stun_server| {
[INFO] [stdout]     |                                - inferred to be a `FnMut` closure
[INFO] [stdout] 540 |                   let request = self.new_binding_request(stun_server, RC);
[INFO] [stdout]     |                                 ---- variable captured here
[INFO] [stdout] 541 |
[INFO] [stdout] 542 | /                 async move {
[INFO] [stdout] 543 | |                     if let Ok(reflexive_addr) = request.await {
[INFO] [stdout] 544 | |                         Some((reflexive_addr, stun_server))
[INFO] [stdout] 545 | |                     } else {
[INFO] [stdout] 546 | |                         None
[INFO] [stdout] 547 | |                     }
[INFO] [stdout] 548 | |                 }
[INFO] [stdout]     | |_________________^ returns an `async` block that contains a reference to a captured variable, which then escapes the closure body
[INFO] [stdout]     |
[INFO] [stdout]     = note: `FnMut` closures only have access to their captured variables while they are executing...
[INFO] [stdout]     = note: ...therefore, they cannot allow references to captured variables to escape
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `msf-ice` (lib test) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `msf-ice` (lib) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "f0686396da26068e4ec5b0a4ece6f49e23495ccc3c4435b28d93d205c692f5fb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f0686396da26068e4ec5b0a4ece6f49e23495ccc3c4435b28d93d205c692f5fb", kill_on_drop: false }`
[INFO] [stdout] f0686396da26068e4ec5b0a4ece6f49e23495ccc3c4435b28d93d205c692f5fb