[INFO] cloning repository https://github.com/spacemeowx2/uit
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/spacemeowx2/uit" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fspacemeowx2%2Fuit", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fspacemeowx2%2Fuit'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 6e88b594f62f4944b37059b686edec43163fb8c3
[INFO] checking spacemeowx2/uit against try#5de9e0e6cf775e94e0de2003f35e183f3f77bfe8 for pr-143808
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fspacemeowx2%2Fuit" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/spacemeowx2/uit
[INFO] finished tweaking git repo https://github.com/spacemeowx2/uit
[INFO] tweaked toml for git repo https://github.com/spacemeowx2/uit written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/spacemeowx2/uit on toolchain 5de9e0e6cf775e94e0de2003f35e183f3f77bfe8
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+5de9e0e6cf775e94e0de2003f35e183f3f77bfe8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/spacemeowx2/uit 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" "+5de9e0e6cf775e94e0de2003f35e183f3f77bfe8" "fetch" "--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-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:cf8efcab8866f2cf4285301c7418e2f4f2a9b088c91ba69c40d5b659f81557f7" "/opt/rustwide/cargo-home/bin/cargo" "+5de9e0e6cf775e94e0de2003f35e183f3f77bfe8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 00815a201cb9336eb0b23f9f6e3bed971b10add65e3a4cd911287f979f093344
[INFO] running `Command { std: "docker" "start" "-a" "00815a201cb9336eb0b23f9f6e3bed971b10add65e3a4cd911287f979f093344", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "00815a201cb9336eb0b23f9f6e3bed971b10add65e3a4cd911287f979f093344", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "00815a201cb9336eb0b23f9f6e3bed971b10add65e3a4cd911287f979f093344", kill_on_drop: false }`
[INFO] [stdout] 00815a201cb9336eb0b23f9f6e3bed971b10add65e3a4cd911287f979f093344
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:cf8efcab8866f2cf4285301c7418e2f4f2a9b088c91ba69c40d5b659f81557f7" "/opt/rustwide/cargo-home/bin/cargo" "+5de9e0e6cf775e94e0de2003f35e183f3f77bfe8" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1ef8db3beb2f1c50d01f6ffaa4830d088e11efbb8aabc0d9abfef56aecf29132
[INFO] running `Command { std: "docker" "start" "-a" "1ef8db3beb2f1c50d01f6ffaa4830d088e11efbb8aabc0d9abfef56aecf29132", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.79
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.45
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling proc-macro-hack v0.5.19
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling version_check v0.9.2
[INFO] [stderr]    Compiling crunchy v0.2.2
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]    Compiling tiny-keccak v2.0.2
[INFO] [stderr]    Compiling getrandom v0.1.15
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking futures-core v0.3.8
[INFO] [stderr]    Compiling getrandom v0.2.0
[INFO] [stderr]     Checking futures-sink v0.3.8
[INFO] [stderr]     Checking slab v0.4.2
[INFO] [stderr]    Compiling serde_derive v1.0.117
[INFO] [stderr]    Compiling proc-macro-nested v0.1.6
[INFO] [stderr]     Checking instant v0.1.7
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]    Compiling serde v1.0.117
[INFO] [stderr]     Checking once_cell v1.5.2
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]     Checking smallvec v1.4.2
[INFO] [stderr]     Checking lock_api v0.4.1
[INFO] [stderr]     Checking futures-task v0.3.8
[INFO] [stderr]     Checking futures-channel v0.3.8
[INFO] [stderr]     Checking unicode-width v0.1.8
[INFO] [stderr]    Compiling unicode-segmentation v1.7.1
[INFO] [stderr]     Checking pin-utils v0.1.0
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]     Checking futures-io v0.3.8
[INFO] [stderr]     Checking arc-swap v0.4.7
[INFO] [stderr]     Checking ppv-lite86 v0.2.10
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking aho-corasick v0.7.15
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]     Checking vec_map v0.8.2
[INFO] [stderr]    Compiling anyhow v1.0.33
[INFO] [stderr]     Checking pin-project-lite v0.1.10
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]     Checking bytes v0.5.6
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking regex-syntax v0.6.21
[INFO] [stderr]     Checking fnv v1.0.7
[INFO] [stderr]     Checking bytes v0.6.0
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]     Checking termcolor v1.1.2
[INFO] [stderr]     Checking humantime v2.0.1
[INFO] [stderr]     Checking parking_lot_core v0.8.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking signal-hook-registry v1.2.1
[INFO] [stderr]     Checking mio v0.7.3
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking parking_lot v0.11.0
[INFO] [stderr]     Checking dotenv v0.15.0
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]    Compiling const-random-macro v0.1.12
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking const-random v0.1.12
[INFO] [stderr]     Checking ahash v0.3.8
[INFO] [stderr]     Checking dashmap v3.11.10
[INFO] [stderr]     Checking regex v1.4.2
[INFO] [stderr]     Checking env_logger v0.8.2
[INFO] [stderr]    Compiling pin-project-internal v1.0.2
[INFO] [stderr]    Compiling futures-macro v0.3.8
[INFO] [stderr]    Compiling tokio-macros v0.3.0
[INFO] [stderr]    Compiling structopt-derive v0.4.13
[INFO] [stderr]     Checking tokio v0.3.0
[INFO] [stderr]     Checking structopt v0.3.20
[INFO] [stderr]     Checking pin-project v1.0.2
[INFO] [stderr]     Checking futures-util v0.3.8
[INFO] [stderr]     Checking tokio-util v0.5.0
[INFO] [stderr]     Checking futures-executor v0.3.8
[INFO] [stderr]     Checking futures v0.3.8
[INFO] [stderr]     Checking bincode v1.3.1
[INFO] [stderr]     Checking uuid v0.8.1
[INFO] [stderr]     Checking uit v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `recver`
[INFO] [stdout]   --> src/lib.rs:79:30
[INFO] [stdout]    |
[INFO] [stdout] 79 |                 let (sender, recver) = mpsc::unbounded();
[INFO] [stdout]    |                              ^^^^^^ help: if this is intentional, prefix it with an underscore: `_recver`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `result`
[INFO] [stdout]    --> src/lib.rs:113:36
[INFO] [stdout]     |
[INFO] [stdout] 113 |                     Either::Right((result, _)) => {
[INFO] [stdout]     |                                    ^^^^^^ help: if this is intentional, prefix it with an underscore: `_result`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `recver`
[INFO] [stdout]   --> src/lib.rs:79:30
[INFO] [stdout]    |
[INFO] [stdout] 79 |                 let (sender, recver) = mpsc::unbounded();
[INFO] [stdout]    |                              ^^^^^^ help: if this is intentional, prefix it with an underscore: `_recver`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `result`
[INFO] [stdout]    --> src/lib.rs:113:36
[INFO] [stdout]     |
[INFO] [stdout] 113 |                     Either::Right((result, _)) => {
[INFO] [stdout]     |                                    ^^^^^^ help: if this is intentional, prefix it with an underscore: `_result`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `SinkDemux` is never constructed
[INFO] [stdout]   --> src/mux.rs:11:12
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub struct SinkDemux<S> {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new` and `get_pinned` are never used
[INFO] [stdout]   --> src/mux.rs:18:12
[INFO] [stdout]    |
[INFO] [stdout] 17 | impl<S> SinkDemux<S> {
[INFO] [stdout]    | -------------------- associated items in this implementation
[INFO] [stdout] 18 |     pub fn new() -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 25 |     fn get_pinned(&mut self) -> Pin<&mut S>
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `SinkDemux` is never constructed
[INFO] [stdout]   --> src/mux.rs:11:12
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub struct SinkDemux<S> {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new` and `get_pinned` are never used
[INFO] [stdout]   --> src/mux.rs:18:12
[INFO] [stdout]    |
[INFO] [stdout] 17 | impl<S> SinkDemux<S> {
[INFO] [stdout]    | -------------------- associated items in this implementation
[INFO] [stdout] 18 |     pub fn new() -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 25 |     fn get_pinned(&mut self) -> Pin<&mut S>
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 18.76s
[INFO] running `Command { std: "docker" "inspect" "1ef8db3beb2f1c50d01f6ffaa4830d088e11efbb8aabc0d9abfef56aecf29132", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1ef8db3beb2f1c50d01f6ffaa4830d088e11efbb8aabc0d9abfef56aecf29132", kill_on_drop: false }`
[INFO] [stdout] 1ef8db3beb2f1c50d01f6ffaa4830d088e11efbb8aabc0d9abfef56aecf29132