[INFO] cloning repository https://github.com/douglasryanadams/connect-proxy-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/douglasryanadams/connect-proxy-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdouglasryanadams%2Fconnect-proxy-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdouglasryanadams%2Fconnect-proxy-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f794f2244ccaf4b68ccb387d6e0a4fbc550e692e
[INFO] checking douglasryanadams/connect-proxy-rs against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdouglasryanadams%2Fconnect-proxy-rs" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/douglasryanadams/connect-proxy-rs on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/douglasryanadams/connect-proxy-rs
[INFO] finished tweaking git repo https://github.com/douglasryanadams/connect-proxy-rs
[INFO] tweaked toml for git repo https://github.com/douglasryanadams/connect-proxy-rs written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/douglasryanadams/connect-proxy-rs 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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded arc-swap v0.4.7
[INFO] [stderr]   Downloaded enum-as-inner v0.3.2
[INFO] [stderr]   Downloaded miow v0.3.5
[INFO] [stderr]   Downloaded data-encoding v2.2.1
[INFO] [stderr]   Downloaded addr2line v0.13.0
[INFO] [stderr]   Downloaded miniz_oxide v0.4.0
[INFO] [stderr]   Downloaded backtrace v0.3.50
[INFO] [stderr]   Downloaded object v0.20.0
[INFO] [stderr]   Downloaded trust-dns-proto v0.19.5
[INFO] [stderr]   Downloaded loom v0.3.4
[INFO] [stderr]   Downloaded bytes v0.5.5
[INFO] [stderr]   Downloaded trust-dns-client v0.19.5
[INFO] [stderr]   Downloaded generator v0.6.21
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7db9a184bf34d4a71dac1f0ebfc53027a97fc026dd9767479a5a3085f6481180
[INFO] running `Command { std: "docker" "start" "-a" "7db9a184bf34d4a71dac1f0ebfc53027a97fc026dd9767479a5a3085f6481180", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7db9a184bf34d4a71dac1f0ebfc53027a97fc026dd9767479a5a3085f6481180", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7db9a184bf34d4a71dac1f0ebfc53027a97fc026dd9767479a5a3085f6481180", kill_on_drop: false }`
[INFO] [stdout] 7db9a184bf34d4a71dac1f0ebfc53027a97fc026dd9767479a5a3085f6481180
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f4282b4c1a6b1c9136bc563c5880e218507811d18de7d6338e202b133ba06a74
[INFO] running `Command { std: "docker" "start" "-a" "f4282b4c1a6b1c9136bc563c5880e218507811d18de7d6338e202b133ba06a74", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.72
[INFO] [stderr]    Compiling proc-macro2 v1.0.18
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.33
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling pin-project-internal v0.4.22
[INFO] [stderr]     Checking futures-core v0.3.5
[INFO] [stderr]    Compiling proc-macro-nested v0.1.6
[INFO] [stderr]    Compiling proc-macro-hack v0.5.16
[INFO] [stderr]     Checking futures-sink v0.3.5
[INFO] [stderr]     Checking once_cell v1.4.0
[INFO] [stderr]     Checking futures-task v0.3.5
[INFO] [stderr]     Checking futures-channel v0.3.5
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]     Checking tinyvec v0.3.3
[INFO] [stderr]     Checking futures-io v0.3.5
[INFO] [stderr]     Checking unicode-bidi v0.3.4
[INFO] [stderr]    Compiling num-integer v0.1.43
[INFO] [stderr]    Compiling unicode-segmentation v1.6.0
[INFO] [stderr]     Checking arc-swap v0.4.7
[INFO] [stderr]     Checking unicode-normalization v0.1.13
[INFO] [stderr]     Checking gimli v0.22.0
[INFO] [stderr]     Checking adler v0.2.3
[INFO] [stderr]     Checking ppv-lite86 v0.2.8
[INFO] [stderr]     Checking miniz_oxide v0.4.0
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]     Checking net2 v0.2.34
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking getrandom v0.1.14
[INFO] [stderr]     Checking mio v0.6.22
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking signal-hook-registry v1.2.0
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]     Checking idna v0.2.0
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking aho-corasick v0.7.13
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[INFO] [stderr]     Checking rustc-demangle v0.1.16
[INFO] [stderr]     Checking mio-uds v0.6.8
[INFO] [stderr]     Checking object v0.20.0
[INFO] [stderr]     Checking regex-syntax v0.6.18
[INFO] [stderr]     Checking bytes v0.5.5
[INFO] [stderr]     Checking url v2.1.1
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking time v0.1.43
[INFO] [stderr]     Checking nibble_vec v0.0.4
[INFO] [stderr]     Checking data-encoding v2.2.1
[INFO] [stderr]     Checking smallvec v1.4.1
[INFO] [stderr]     Checking termcolor v1.1.0
[INFO] [stderr]     Checking chrono v0.4.13
[INFO] [stderr]     Checking radix_trie v0.1.6
[INFO] [stderr]     Checking addr2line v0.13.0
[INFO] [stderr]     Checking regex v1.3.9
[INFO] [stderr]     Checking backtrace v0.3.50
[INFO] [stderr]     Checking env_logger v0.7.1
[INFO] [stderr]     Checking pretty_env_logger v0.4.0
[INFO] [stderr]    Compiling futures-macro v0.3.5
[INFO] [stderr]    Compiling thiserror-impl v1.0.20
[INFO] [stderr]    Compiling tokio-macros v0.2.5
[INFO] [stderr]    Compiling async-trait v0.1.36
[INFO] [stderr]    Compiling enum-as-inner v0.3.2
[INFO] [stderr]     Checking tokio v0.2.21
[INFO] [stderr]     Checking thiserror v1.0.20
[INFO] [stderr]     Checking pin-project v0.4.22
[INFO] [stderr]     Checking futures-util v0.3.5
[INFO] [stderr]     Checking futures-executor v0.3.5
[INFO] [stderr]     Checking futures v0.3.5
[INFO] [stderr]     Checking trust-dns-proto v0.19.5
[INFO] [stderr]     Checking trust-dns-client v0.19.5
[INFO] [stderr]     Checking connect-proxy-rs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]   --> src/main.rs:89:17
[INFO] [stdout]    |
[INFO] [stdout] 89 |                 &target_port.push(listener_buffer[counter]);
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 89 |                 let _ = &target_port.push(listener_buffer[counter]);
[INFO] [stdout]    |                 +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]   --> src/main.rs:91:17
[INFO] [stdout]    |
[INFO] [stdout] 91 |                 &target_domain.push(listener_buffer[counter]);
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]    |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 91 |                 let _ = &target_domain.push(listener_buffer[counter]);
[INFO] [stdout]    |                 +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]   --> src/main.rs:89:17
[INFO] [stdout]    |
[INFO] [stdout] 89 |                 &target_port.push(listener_buffer[counter]);
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 89 |                 let _ = &target_port.push(listener_buffer[counter]);
[INFO] [stdout]    |                 +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]   --> src/main.rs:91:17
[INFO] [stdout]    |
[INFO] [stdout] 91 |                 &target_domain.push(listener_buffer[counter]);
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]    |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 91 |                 let _ = &target_domain.push(listener_buffer[counter]);
[INFO] [stdout]    |                 +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 32.54s
[INFO] running `Command { std: "docker" "inspect" "f4282b4c1a6b1c9136bc563c5880e218507811d18de7d6338e202b133ba06a74", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f4282b4c1a6b1c9136bc563c5880e218507811d18de7d6338e202b133ba06a74", kill_on_drop: false }`
[INFO] [stdout] f4282b4c1a6b1c9136bc563c5880e218507811d18de7d6338e202b133ba06a74