[INFO] fetching crate asciicker-rs 0.0.4...
[INFO] checking asciicker-rs-0.0.4 against master#bca37a20bd376ce3fd138e7cdee7fe704e0f8814 for pr-139493-3
[INFO] extracting crate asciicker-rs 0.0.4 into /workspace/builds/worker-5-tc1/source
[INFO] started tweaking crates.io crate asciicker-rs 0.0.4
[INFO] finished tweaking crates.io crate asciicker-rs 0.0.4
[INFO] tweaked toml for crates.io crate asciicker-rs 0.0.4 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate asciicker-rs 0.0.4 on toolchain bca37a20bd376ce3fd138e7cdee7fe704e0f8814
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+bca37a20bd376ce3fd138e7cdee7fe704e0f8814" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate asciicker-rs 0.0.4 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" "+bca37a20bd376ce3fd138e7cdee7fe704e0f8814" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded concat-idents v1.1.3
[INFO] [stderr]   Downloaded macro_rules_attribute-proc_macro v0.0.2
[INFO] [stderr]   Downloaded macro_rules_attribute v0.0.2
[INFO] [stderr]   Downloaded tokio-tungstenite v0.16.1
[INFO] [stderr]   Downloaded crossbeam-queue v0.3.4
[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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+bca37a20bd376ce3fd138e7cdee7fe704e0f8814" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5999ff914d452c779135fa807dc1a06008477fd9a952f299a4d6dbd57ebc9e29
[INFO] running `Command { std: "docker" "start" "-a" "5999ff914d452c779135fa807dc1a06008477fd9a952f299a4d6dbd57ebc9e29", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5999ff914d452c779135fa807dc1a06008477fd9a952f299a4d6dbd57ebc9e29", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5999ff914d452c779135fa807dc1a06008477fd9a952f299a4d6dbd57ebc9e29", kill_on_drop: false }`
[INFO] [stdout] 5999ff914d452c779135fa807dc1a06008477fd9a952f299a4d6dbd57ebc9e29
[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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+bca37a20bd376ce3fd138e7cdee7fe704e0f8814" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ce29d1f7fff4d5effce7f89c22b0877f3a61531ecff461ed710249c2a60df8a4
[INFO] running `Command { std: "docker" "start" "-a" "ce29d1f7fff4d5effce7f89c22b0877f3a61531ecff461ed710249c2a60df8a4", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.86
[INFO] [stderr]    Compiling libc v0.2.117
[INFO] [stderr]    Compiling typenum v1.15.0
[INFO] [stderr]    Compiling crossbeam-utils v0.8.7
[INFO] [stderr]    Compiling futures-core v0.3.21
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.7
[INFO] [stderr]    Compiling generic-array v0.14.5
[INFO] [stderr]    Compiling futures-util v0.3.21
[INFO] [stderr]    Compiling crossbeam-queue v0.3.4
[INFO] [stderr]     Checking futures-sink v0.3.21
[INFO] [stderr]    Compiling macro_rules_attribute-proc_macro v0.0.2
[INFO] [stderr]     Checking macro_rules_attribute v0.0.2
[INFO] [stderr]     Checking crossbeam-channel v0.5.2
[INFO] [stderr]     Checking getrandom v0.2.4
[INFO] [stderr]     Checking mio v0.7.14
[INFO] [stderr]     Checking num_cpus v1.13.1
[INFO] [stderr]     Checking crossbeam-deque v0.8.1
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking crossbeam v0.8.1
[INFO] [stderr]     Checking block-buffer v0.9.0
[INFO] [stderr]     Checking digest v0.9.0
[INFO] [stderr]     Checking sha-1 v0.9.8
[INFO] [stderr]    Compiling thiserror-impl v1.0.30
[INFO] [stderr]    Compiling tokio-macros v1.7.0
[INFO] [stderr]    Compiling futures-macro v0.3.21
[INFO] [stderr]    Compiling concat-idents v1.1.3
[INFO] [stderr]     Checking tokio v1.16.1
[INFO] [stderr]     Checking thiserror v1.0.30
[INFO] [stderr]     Checking tungstenite v0.16.0
[INFO] [stderr]     Checking tokio-tungstenite v0.16.1
[INFO] [stderr]     Checking asciicker-rs v0.0.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/y6/bot.rs:204:17
[INFO] [stdout]     |
[INFO] [stdout] 204 |             let mut client = match world.clients.iter_mut().find(|c| c.id == pose_brc.id) {
[INFO] [stdout]     |                 ----^^^^^^
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/y6/bot.rs:204:17
[INFO] [stdout]     |
[INFO] [stdout] 204 |             let mut client = match world.clients.iter_mut().find(|c| c.id == pose_brc.id) {
[INFO] [stdout]     |                 ----^^^^^^
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> examples/y6_echo_bot.rs:25:5
[INFO] [stdout]    |
[INFO] [stdout] 25 |     sender.send(talk_brc.str.into_string().unwrap());
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 25 |     let _ = sender.send(talk_brc.str.into_string().unwrap());
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 13.40s
[INFO] running `Command { std: "docker" "inspect" "ce29d1f7fff4d5effce7f89c22b0877f3a61531ecff461ed710249c2a60df8a4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ce29d1f7fff4d5effce7f89c22b0877f3a61531ecff461ed710249c2a60df8a4", kill_on_drop: false }`
[INFO] [stdout] ce29d1f7fff4d5effce7f89c22b0877f3a61531ecff461ed710249c2a60df8a4