[INFO] fetching crate redcon 0.1.2...
[INFO] testing redcon-0.1.2 against try#b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b for pr-145330-1
[INFO] extracting crate redcon 0.1.2 into /workspace/builds/worker-7-tc2/source
[INFO] started tweaking crates.io crate redcon 0.1.2
[INFO] finished tweaking crates.io crate redcon 0.1.2
[INFO] tweaked toml for crates.io crate redcon 0.1.2 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate redcon 0.1.2 on toolchain b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] cee1d2be3a10ced605e209478eaf4a92c1ea18570279ff5029d994453851e5a0
[INFO] running `Command { std: "docker" "start" "-a" "cee1d2be3a10ced605e209478eaf4a92c1ea18570279ff5029d994453851e5a0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cee1d2be3a10ced605e209478eaf4a92c1ea18570279ff5029d994453851e5a0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cee1d2be3a10ced605e209478eaf4a92c1ea18570279ff5029d994453851e5a0", kill_on_drop: false }`
[INFO] [stdout] cee1d2be3a10ced605e209478eaf4a92c1ea18570279ff5029d994453851e5a0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ba80ba0d007720bbafc1dd4d63371caa2e94ee7ed24d0a8f84acd4e749d991eb
[INFO] running `Command { std: "docker" "start" "-a" "ba80ba0d007720bbafc1dd4d63371caa2e94ee7ed24d0a8f84acd4e749d991eb", kill_on_drop: false }`
[INFO] [stderr]    Compiling redcon v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stdout]    --> src/lib.rs:437:5
[INFO] [stdout]     |
[INFO] [stdout] 437 |     drop(s);
[INFO] [stdout]     |     ^^^^^-^
[INFO] [stdout]     |          |
[INFO] [stdout]     |          argument has type `&mut Server<T>`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dropping_references)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]     |
[INFO] [stdout] 437 -     drop(s);
[INFO] [stdout] 437 +     let _ = s;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.44s
[INFO] running `Command { std: "docker" "inspect" "ba80ba0d007720bbafc1dd4d63371caa2e94ee7ed24d0a8f84acd4e749d991eb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ba80ba0d007720bbafc1dd4d63371caa2e94ee7ed24d0a8f84acd4e749d991eb", kill_on_drop: false }`
[INFO] [stdout] ba80ba0d007720bbafc1dd4d63371caa2e94ee7ed24d0a8f84acd4e749d991eb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 75bdb65f10d8c791388f930ba78a1983d6a9ceb45e8ce6b06f95a225b7a26a17
[INFO] running `Command { std: "docker" "start" "-a" "75bdb65f10d8c791388f930ba78a1983d6a9ceb45e8ce6b06f95a225b7a26a17", kill_on_drop: false }`
[INFO] [stderr]    Compiling redcon v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stdout]    --> src/lib.rs:437:5
[INFO] [stdout]     |
[INFO] [stdout] 437 |     drop(s);
[INFO] [stdout]     |     ^^^^^-^
[INFO] [stdout]     |          |
[INFO] [stdout]     |          argument has type `&mut Server<T>`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dropping_references)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]     |
[INFO] [stdout] 437 -     drop(s);
[INFO] [stdout] 437 +     let _ = s;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stdout]    --> src/lib.rs:437:5
[INFO] [stdout]     |
[INFO] [stdout] 437 |     drop(s);
[INFO] [stdout]     |     ^^^^^-^
[INFO] [stdout]     |          |
[INFO] [stdout]     |          argument has type `&mut Server<T>`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dropping_references)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]     |
[INFO] [stdout] 437 -     drop(s);
[INFO] [stdout] 437 +     let _ = s;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.70s
[INFO] running `Command { std: "docker" "inspect" "75bdb65f10d8c791388f930ba78a1983d6a9ceb45e8ce6b06f95a225b7a26a17", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "75bdb65f10d8c791388f930ba78a1983d6a9ceb45e8ce6b06f95a225b7a26a17", kill_on_drop: false }`
[INFO] [stdout] 75bdb65f10d8c791388f930ba78a1983d6a9ceb45e8ce6b06f95a225b7a26a17
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 31ad8a0a25a9f8da17851ddbd66d463e3a4a116a4e81e4908d22299bdaf3299c
[INFO] running `Command { std: "docker" "start" "-a" "31ad8a0a25a9f8da17851ddbd66d463e3a4a116a4e81e4908d22299bdaf3299c", kill_on_drop: false }`
[INFO] [stderr] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stderr]    --> src/lib.rs:437:5
[INFO] [stderr]     |
[INFO] [stderr] 437 |     drop(s);
[INFO] [stderr]     |     ^^^^^-^
[INFO] [stderr]     |          |
[INFO] [stderr]     |          argument has type `&mut Server<T>`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dropping_references)]` on by default
[INFO] [stderr] help: use `let _ = ...` to ignore the expression or result
[INFO] [stderr]     |
[INFO] [stderr] 437 -     drop(s);
[INFO] [stderr] 437 +     let _ = s;
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: `redcon` (lib) generated 1 warning
[INFO] [stderr] warning: `redcon` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/redcon-0d5eb6891dfc1083)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stderr]    Doc-tests redcon
[INFO] [stdout] test test::connections ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.17s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - listen (line 397) - compile ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.08s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "31ad8a0a25a9f8da17851ddbd66d463e3a4a116a4e81e4908d22299bdaf3299c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "31ad8a0a25a9f8da17851ddbd66d463e3a4a116a4e81e4908d22299bdaf3299c", kill_on_drop: false }`
[INFO] [stdout] 31ad8a0a25a9f8da17851ddbd66d463e3a4a116a4e81e4908d22299bdaf3299c