[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#b20a093d9fb1ffaa04ae9852cb034864a992bafd for pr-85073
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fspacemeowx2%2Fuit" "/workspace/builds/worker-3/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/spacemeowx2/uit on toolchain b20a093d9fb1ffaa04ae9852cb034864a992bafd
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b20a093d9fb1ffaa04ae9852cb034864a992bafd" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[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-3/source/Cargo.toml
[INFO] crate git repo https://github.com/spacemeowx2/uit already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b20a093d9fb1ffaa04ae9852cb034864a992bafd" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded const-random-macro v0.1.12
[INFO] [stderr]   Downloaded const-random v0.1.12
[INFO] [stderr]   Downloaded env_logger v0.8.2
[INFO] [stderr]   Downloaded mio v0.7.3
[INFO] [stderr]   Downloaded tokio-macros v0.3.0
[INFO] [stderr]   Downloaded tokio-util v0.5.0
[INFO] [stderr]   Downloaded tokio v0.3.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "+b20a093d9fb1ffaa04ae9852cb034864a992bafd" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 552e59d2f74d0d271fd00e4a9d70fef282497931b8c2df840232732325342c02
[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" "552e59d2f74d0d271fd00e4a9d70fef282497931b8c2df840232732325342c02", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "552e59d2f74d0d271fd00e4a9d70fef282497931b8c2df840232732325342c02", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "552e59d2f74d0d271fd00e4a9d70fef282497931b8c2df840232732325342c02", kill_on_drop: false }`
[INFO] [stdout] 552e59d2f74d0d271fd00e4a9d70fef282497931b8c2df840232732325342c02
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "+b20a093d9fb1ffaa04ae9852cb034864a992bafd" "check" "--frozen" "--all" "--all-targets" "--message-format=json", 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] 398f01603506085ab9fc4fbbaf11cb35b39fa02027a1e2e673e497e1ee8e08ba
[INFO] running `Command { std: "docker" "start" "-a" "398f01603506085ab9fc4fbbaf11cb35b39fa02027a1e2e673e497e1ee8e08ba", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.79
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling proc-macro-hack v0.5.19
[INFO] [stderr]    Compiling getrandom v0.2.0
[INFO] [stderr]    Compiling serde_derive v1.0.117
[INFO] [stderr]     Checking smallvec v1.4.2
[INFO] [stderr]    Compiling serde v1.0.117
[INFO] [stderr]     Checking ppv-lite86 v0.2.10
[INFO] [stderr]     Checking regex-syntax v0.6.21
[INFO] [stderr]    Compiling anyhow v1.0.33
[INFO] [stderr]     Checking pin-project-lite v0.1.10
[INFO] [stderr]     Checking humantime v2.0.1
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]     Checking instant v0.1.7
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]     Checking lock_api v0.4.1
[INFO] [stderr]     Checking futures-channel v0.3.8
[INFO] [stderr]     Checking aho-corasick v0.7.15
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]     Checking getrandom v0.1.15
[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 mio v0.7.3
[INFO] [stderr]     Checking signal-hook-registry v1.2.1
[INFO] [stderr]     Checking regex v1.4.2
[INFO] [stderr]    Compiling syn v1.0.45
[INFO] [stderr]    Compiling const-random-macro v0.1.12
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking parking_lot v0.11.0
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking const-random v0.1.12
[INFO] [stderr]     Checking ahash v0.3.8
[INFO] [stderr]     Checking env_logger v0.8.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking dashmap v3.11.10
[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 pin-project v1.0.2
[INFO] [stderr]     Checking structopt v0.3.20
[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: associated function is never used: `new`
[INFO] [stdout]   --> src/mux.rs:18:12
[INFO] [stdout]    |
[INFO] [stdout] 18 |     pub fn new() -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[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: associated function is never used: `new`
[INFO] [stdout]   --> src/mux.rs:18:12
[INFO] [stdout]    |
[INFO] [stdout] 18 |     pub fn new() -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 50.37s
[INFO] running `Command { std: "docker" "inspect" "398f01603506085ab9fc4fbbaf11cb35b39fa02027a1e2e673e497e1ee8e08ba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "398f01603506085ab9fc4fbbaf11cb35b39fa02027a1e2e673e497e1ee8e08ba", kill_on_drop: false }`
[INFO] [stdout] 398f01603506085ab9fc4fbbaf11cb35b39fa02027a1e2e673e497e1ee8e08ba