[INFO] fetching crate cotton-ssdp 0.0.3...
[INFO] checking cotton-ssdp-0.0.3 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] extracting crate cotton-ssdp 0.0.3 into /workspace/builds/worker-5-tc1/source
[INFO] validating manifest of crates.io crate cotton-ssdp 0.0.3 on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate cotton-ssdp 0.0.3
[INFO] removed 0 missing examples
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate cotton-ssdp 0.0.3
[INFO] tweaked toml for crates.io crate cotton-ssdp 0.0.3 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] crate crates.io crate cotton-ssdp 0.0.3 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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded tokio-stream v0.1.14
[INFO] [stderr]   Downloaded mock_instant v0.3.1
[INFO] [stderr]   Downloaded neli-proc-macros v0.1.3
[INFO] [stderr]   Downloaded cotton-netif v0.0.4
[INFO] [stderr]   Downloaded neli v0.6.4
[INFO] [stderr]   Downloaded no-std-net v0.6.0
[INFO] [stderr]   Downloaded quote v1.0.31
[INFO] [stderr]   Downloaded serde v1.0.174
[INFO] [stderr]   Downloaded nix v0.26.2
[INFO] [stderr]   Downloaded serde_derive v1.0.174
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9313ce5852f4b2b59407789d0713e6176aacd1ce3fcd6b39644f35eb004f795e
[INFO] running `Command { std: "docker" "start" "-a" "9313ce5852f4b2b59407789d0713e6176aacd1ce3fcd6b39644f35eb004f795e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9313ce5852f4b2b59407789d0713e6176aacd1ce3fcd6b39644f35eb004f795e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9313ce5852f4b2b59407789d0713e6176aacd1ce3fcd6b39644f35eb004f795e", kill_on_drop: false }`
[INFO] [stdout] 9313ce5852f4b2b59407789d0713e6176aacd1ce3fcd6b39644f35eb004f795e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 027d1eb36ca5055bec53dfcba4f38669f2be29ba421ffea31f1ab7d15b65f158
[INFO] running `Command { std: "docker" "start" "-a" "027d1eb36ca5055bec53dfcba4f38669f2be29ba421ffea31f1ab7d15b65f158", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.66
[INFO] [stderr]    Compiling libc v0.2.147
[INFO] [stderr]    Compiling unicode-ident v1.0.11
[INFO] [stderr]    Compiling futures-core v0.3.28
[INFO] [stderr]     Checking pin-project-lite v0.2.10
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling futures-task v0.3.28
[INFO] [stderr]     Checking bytes v1.4.0
[INFO] [stderr]    Compiling serde v1.0.174
[INFO] [stderr]    Compiling serde_derive v1.0.174
[INFO] [stderr]    Compiling futures-util v0.3.28
[INFO] [stderr]     Checking futures-sink v0.3.28
[INFO] [stderr]    Compiling either v1.9.0
[INFO] [stderr]    Compiling tokio v1.29.1
[INFO] [stderr]    Compiling memoffset v0.7.1
[INFO] [stderr]    Compiling futures-channel v0.3.28
[INFO] [stderr]    Compiling slotmap v1.0.6
[INFO] [stderr]     Checking log v0.4.19
[INFO] [stderr]     Checking no-std-net v0.6.0
[INFO] [stderr]     Checking futures-io v0.3.28
[INFO] [stderr]     Checking mock_instant v0.3.1
[INFO] [stderr]    Compiling quote v1.0.31
[INFO] [stderr]    Compiling syn v2.0.27
[INFO] [stderr]     Checking socket2 v0.4.9
[INFO] [stderr]     Checking mio v0.8.8
[INFO] [stderr]     Checking getrandom v0.2.10
[INFO] [stderr]     Checking nix v0.26.2
[INFO] [stderr]     Checking socket2 v0.5.3
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking uuid v1.4.1
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]    Compiling tokio-macros v2.1.0
[INFO] [stderr]    Compiling async-stream-impl v0.3.5
[INFO] [stderr]    Compiling futures-macro v0.3.28
[INFO] [stderr]     Checking async-stream v0.3.5
[INFO] [stderr]    Compiling neli-proc-macros v0.1.3
[INFO] [stderr]     Checking futures v0.3.28
[INFO] [stderr]     Checking tokio-stream v0.1.14
[INFO] [stderr]     Checking neli v0.6.4
[INFO] [stderr]     Checking tokio-test v0.4.2
[INFO] [stderr]     Checking cotton-netif v0.0.4
[INFO] [stderr]     Checking cotton-ssdp v0.0.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `String` is imported redundantly
[INFO] [stdout]   --> src/lib.rs:65:5
[INFO] [stdout]    |
[INFO] [stdout] 65 | use alloc::string::String;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:144:13
[INFO] [stdout]    |
[INFO] [stdout]    = note: the item `String` is already defined here
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `String` is imported redundantly
[INFO] [stdout]  --> src/engine.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use alloc::string::String;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]  --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:144:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `String` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `ToString` is imported redundantly
[INFO] [stdout]  --> src/engine.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use alloc::string::ToString;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]  --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:144:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `ToString` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Vec` is imported redundantly
[INFO] [stdout]  --> src/engine.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use alloc::vec::Vec;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout]  --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:144:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `Vec` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `String` is imported redundantly
[INFO] [stdout]  --> src/message.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use alloc::string::String;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]  --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:144:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `String` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `String` is imported redundantly
[INFO] [stdout]  --> src/engine.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use alloc::string::String;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]  --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:144:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `String` is already defined here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `ToString` is imported redundantly
[INFO] [stdout]  --> src/engine.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use alloc::string::ToString;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]  --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:144:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `ToString` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `SocketAddrV4` is imported redundantly
[INFO] [stdout]    --> src/engine.rs:573:32
[INFO] [stdout]     |
[INFO] [stdout] 571 |     use super::*;
[INFO] [stdout]     |         -------- the item `SocketAddrV4` is already imported here
[INFO] [stdout] 572 |     use crate::message::parse;
[INFO] [stdout] 573 |     use no_std_net::{Ipv6Addr, SocketAddrV4};
[INFO] [stdout]     |                                ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `ToString` is imported redundantly
[INFO] [stdout]    --> src/message.rs:229:9
[INFO] [stdout]     |
[INFO] [stdout] 229 |     use alloc::string::ToString;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:144:13
[INFO] [stdout]     |
[INFO] [stdout]     = note: the item `ToString` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `setsockopt` is imported redundantly
[INFO] [stdout]    --> src/udp/std.rs:205:9
[INFO] [stdout]     |
[INFO] [stdout] 204 |     use super::*;
[INFO] [stdout]     |         -------- the item `setsockopt` is already imported here
[INFO] [stdout] 205 |     use nix::sys::socket::setsockopt;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Ipv4PacketInfo` is imported redundantly
[INFO] [stdout]    --> src/udp/std.rs:206:9
[INFO] [stdout]     |
[INFO] [stdout] 204 |     use super::*;
[INFO] [stdout]     |         -------- the item `Ipv4PacketInfo` is already imported here
[INFO] [stdout] 205 |     use nix::sys::socket::setsockopt;
[INFO] [stdout] 206 |     use nix::sys::socket::sockopt::Ipv4PacketInfo;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `ToString` is imported redundantly
[INFO] [stdout]    --> src/udp.rs:157:9
[INFO] [stdout]     |
[INFO] [stdout] 157 |     use alloc::string::ToString;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:144:13
[INFO] [stdout]     |
[INFO] [stdout]     = note: the item `ToString` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `ToString` is imported redundantly
[INFO] [stdout]    --> src/lib.rs:147:9
[INFO] [stdout]     |
[INFO] [stdout] 147 |     use alloc::string::ToString;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:144:13
[INFO] [stdout]     |
[INFO] [stdout]     = note: the item `ToString` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `maximum_wait_sec` is never read
[INFO] [stdout]   --> src/message.rs:19:9
[INFO] [stdout]    |
[INFO] [stdout] 17 |     Search {
[INFO] [stdout]    |     ------ field in this variant
[INFO] [stdout] 18 |         search_target: String,
[INFO] [stdout] 19 |         maximum_wait_sec: u8,
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 15.68s
[INFO] running `Command { std: "docker" "inspect" "027d1eb36ca5055bec53dfcba4f38669f2be29ba421ffea31f1ab7d15b65f158", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "027d1eb36ca5055bec53dfcba4f38669f2be29ba421ffea31f1ab7d15b65f158", kill_on_drop: false }`
[INFO] [stdout] 027d1eb36ca5055bec53dfcba4f38669f2be29ba421ffea31f1ab7d15b65f158