[INFO] fetching crate asciicker-rs 0.0.4...
[INFO] checking asciicker-rs-0.0.4 against master#8c32e313cccf7df531e2d49ffb8227bb92304aee for pr-145608-1
[INFO] extracting crate asciicker-rs 0.0.4 into /workspace/builds/worker-0-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-0-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate asciicker-rs 0.0.4 on toolchain 8c32e313cccf7df531e2d49ffb8227bb92304aee
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8c32e313cccf7df531e2d49ffb8227bb92304aee" "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" "+8c32e313cccf7df531e2d49ffb8227bb92304aee" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded tokio-tungstenite v0.16.1
[INFO] [stderr]   Downloaded macro_rules_attribute-proc_macro v0.0.2
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[INFO] [stderr]   Downloaded crossbeam-channel v0.5.2
[INFO] [stderr]   Downloaded tokio v1.16.1
[INFO] [stderr]   Downloaded libc v0.2.117
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+8c32e313cccf7df531e2d49ffb8227bb92304aee" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 459a33b5c18f183cc08921afb45620da32de75bcc6e48c8a73504c125da6bf92
[INFO] running `Command { std: "docker" "start" "-a" "459a33b5c18f183cc08921afb45620da32de75bcc6e48c8a73504c125da6bf92", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "459a33b5c18f183cc08921afb45620da32de75bcc6e48c8a73504c125da6bf92", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "459a33b5c18f183cc08921afb45620da32de75bcc6e48c8a73504c125da6bf92", kill_on_drop: false }`
[INFO] [stdout] 459a33b5c18f183cc08921afb45620da32de75bcc6e48c8a73504c125da6bf92
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+8c32e313cccf7df531e2d49ffb8227bb92304aee" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2a4d7bf896591b971098ee5be772caa758d75e1b7e99349130077221f1063e9a
[INFO] running `Command { std: "docker" "start" "-a" "2a4d7bf896591b971098ee5be772caa758d75e1b7e99349130077221f1063e9a", kill_on_drop: false }`
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[INFO] [stderr]    Compiling thiserror-impl v1.0.30
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[INFO] [stderr]     Checking tokio v1.16.1
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[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)]` 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)]` 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)]` 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 24.09s
[INFO] running `Command { std: "docker" "inspect" "2a4d7bf896591b971098ee5be772caa758d75e1b7e99349130077221f1063e9a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2a4d7bf896591b971098ee5be772caa758d75e1b7e99349130077221f1063e9a", kill_on_drop: false }`
[INFO] [stdout] 2a4d7bf896591b971098ee5be772caa758d75e1b7e99349130077221f1063e9a