[INFO] fetching crate coca 0.3.0...
[INFO] checking coca-0.3.0 against master#e6e4f7ed1589e03bc2f6c5931c1a72e7947e8682 for beta-170-4
[INFO] extracting crate coca 0.3.0 into /workspace/builds/worker-6-tc2/source
[INFO] validating manifest of crates.io crate coca 0.3.0 on toolchain e6e4f7ed1589e03bc2f6c5931c1a72e7947e8682
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+e6e4f7ed1589e03bc2f6c5931c1a72e7947e8682" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate coca 0.3.0
[INFO] finished tweaking crates.io crate coca 0.3.0
[INFO] tweaked toml for crates.io crate coca 0.3.0 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] crate crates.io crate coca 0.3.0 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" "+e6e4f7ed1589e03bc2f6c5931c1a72e7947e8682" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:19e73879b68f455e41552ea35293514db52ea292d993f571636dbffedb77a1ee" "/opt/rustwide/cargo-home/bin/cargo" "+e6e4f7ed1589e03bc2f6c5931c1a72e7947e8682" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] bd727404b682e81b854d53ba6640ec9e13cc591d4b162b4f58a2b23a054cb4cc
[INFO] running `Command { std: "docker" "start" "-a" "bd727404b682e81b854d53ba6640ec9e13cc591d4b162b4f58a2b23a054cb4cc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bd727404b682e81b854d53ba6640ec9e13cc591d4b162b4f58a2b23a054cb4cc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bd727404b682e81b854d53ba6640ec9e13cc591d4b162b4f58a2b23a054cb4cc", kill_on_drop: false }`
[INFO] [stdout] bd727404b682e81b854d53ba6640ec9e13cc591d4b162b4f58a2b23a054cb4cc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:19e73879b68f455e41552ea35293514db52ea292d993f571636dbffedb77a1ee" "/opt/rustwide/cargo-home/bin/cargo" "+e6e4f7ed1589e03bc2f6c5931c1a72e7947e8682" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 382f385f7c0070e2133f821da00b1c784180a79766a315d2d8814074a215958b
[INFO] running `Command { std: "docker" "start" "-a" "382f385f7c0070e2133f821da00b1c784180a79766a315d2d8814074a215958b", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.81
[INFO] [stderr]    Compiling getrandom v0.2.0
[INFO] [stderr]     Checking ppv-lite86 v0.2.10
[INFO] [stderr]     Checking rustc-hash v1.1.0
[INFO] [stderr]     Checking coca v0.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: using `.borrow()` on a double reference, which returns `&&K` instead of borrowing the inner type
[INFO] [stdout]    --> src/collections/cache.rs:280:27
[INFO] [stdout]     |
[INFO] [stdout] 280 |             if my_key == k.borrow() {
[INFO] [stdout]     |                           ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(suspicious_double_ref_op)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: using `.borrow()` on a double reference, which returns `&&K` instead of borrowing the inner type
[INFO] [stdout]    --> src/collections/cache.rs:321:27
[INFO] [stdout]     |
[INFO] [stdout] 321 |             if my_key == k.borrow() {
[INFO] [stdout]     |                           ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking rand_core v0.6.0
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking rand_chacha v0.3.0
[INFO] [stderr]     Checking rand v0.8.0
[INFO] [stdout] warning: using `.borrow()` on a double reference, which returns `&&K` instead of borrowing the inner type
[INFO] [stdout]    --> src/collections/cache.rs:280:27
[INFO] [stdout]     |
[INFO] [stdout] 280 |             if my_key == k.borrow() {
[INFO] [stdout]     |                           ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(suspicious_double_ref_op)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: using `.borrow()` on a double reference, which returns `&&K` instead of borrowing the inner type
[INFO] [stdout]    --> src/collections/cache.rs:321:27
[INFO] [stdout]     |
[INFO] [stdout] 321 |             if my_key == k.borrow() {
[INFO] [stdout]     |                           ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.16s
[INFO] running `Command { std: "docker" "inspect" "382f385f7c0070e2133f821da00b1c784180a79766a315d2d8814074a215958b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "382f385f7c0070e2133f821da00b1c784180a79766a315d2d8814074a215958b", kill_on_drop: false }`
[INFO] [stdout] 382f385f7c0070e2133f821da00b1c784180a79766a315d2d8814074a215958b
