[INFO] fetching crate frcds 0.1.0...
[INFO] checking frcds-0.1.0 against try#7b3565da729099dbe807466fcd118fb2815986e0 for pr-81789
[INFO] extracting crate frcds 0.1.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate frcds 0.1.0 on toolchain 7b3565da729099dbe807466fcd118fb2815986e0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7b3565da729099dbe807466fcd118fb2815986e0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate frcds 0.1.0
[INFO] finished tweaking crates.io crate frcds 0.1.0
[INFO] tweaked toml for crates.io crate frcds 0.1.0 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7b3565da729099dbe807466fcd118fb2815986e0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7b3565da729099dbe807466fcd118fb2815986e0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+7b3565da729099dbe807466fcd118fb2815986e0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8c038ddde293ad657ae08c395a22a53ecf6097a1d9c9f0946d9881439506696e
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "8c038ddde293ad657ae08c395a22a53ecf6097a1d9c9f0946d9881439506696e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8c038ddde293ad657ae08c395a22a53ecf6097a1d9c9f0946d9881439506696e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8c038ddde293ad657ae08c395a22a53ecf6097a1d9c9f0946d9881439506696e", kill_on_drop: false }`
[INFO] [stdout] 8c038ddde293ad657ae08c395a22a53ecf6097a1d9c9f0946d9881439506696e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+7b3565da729099dbe807466fcd118fb2815986e0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 537e06fea4dd92e56f9bd6d41f199236442906454a6fbd48d26e7bd6896c3faf
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "537e06fea4dd92e56f9bd6d41f199236442906454a6fbd48d26e7bd6896c3faf", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]     Checking rustc-demangle v0.1.18
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]    Compiling syn v1.0.70
[INFO] [stderr]    Compiling miniz_oxide v0.4.4
[INFO] [stderr]     Checking backtrace v0.3.57
[INFO] [stderr]    Compiling synstructure v0.12.4
[INFO] [stderr]     Checking failure v0.1.8
[INFO] [stderr]     Checking frcds v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/ds_to_rio/udp/mod.rs:14:23
[INFO] [stdout]    |
[INFO] [stdout] 14 |     pub tags: Vec<Box<Tag>>,
[INFO] [stdout]    |                       ^^^ help: use `dyn`: `dyn Tag`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/ds_to_rio/udp/mod.rs:47:23
[INFO] [stdout]    |
[INFO] [stdout] 47 |         tags: Vec<Box<Tag>>,
[INFO] [stdout]    |                       ^^^ help: use `dyn`: `dyn Tag`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/rio_to_ds/udp/mod.rs:16:23
[INFO] [stdout]    |
[INFO] [stdout] 16 |     pub tags: Vec<Box<Tag>>,
[INFO] [stdout]    |                       ^^^ help: use `dyn`: `dyn Tag`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/ds_to_rio/udp/mod.rs:14:23
[INFO] [stdout]    |
[INFO] [stdout] 14 |     pub tags: Vec<Box<Tag>>,
[INFO] [stdout]    |                       ^^^ help: use `dyn`: `dyn Tag`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/ds_to_rio/udp/mod.rs:47:23
[INFO] [stdout]    |
[INFO] [stdout] 47 |         tags: Vec<Box<Tag>>,
[INFO] [stdout]    |                       ^^^ help: use `dyn`: `dyn Tag`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/rio_to_ds/udp/mod.rs:16:23
[INFO] [stdout]    |
[INFO] [stdout] 16 |     pub tags: Vec<Box<Tag>>,
[INFO] [stdout]    |                       ^^^ help: use `dyn`: `dyn Tag`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/ds_to_rio/tcp/tags.rs:12:9
[INFO] [stdout]    |
[INFO] [stdout] 12 |         vec.write_u16::<NetworkEndian>(buf.len() as u16);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/ds_to_rio/tcp/tags.rs:12:9
[INFO] [stdout]    |
[INFO] [stdout] 12 |         vec.write_u16::<NetworkEndian>(buf.len() as u16);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> examples/simple.rs:17:23
[INFO] [stdout]    |
[INFO] [stdout] 17 |     let tags: Vec<Box<Tag>> = vec!(Box::new(Countdown(35.00001)));//, Box::new(Joystick::new(vec!(-120, 110, 0),vec!(true, false, false, ...
[INFO] [stdout]    |                       ^^^ help: use `dyn`: `dyn Tag`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 16.11s
[INFO] running `Command { std: "docker" "inspect" "537e06fea4dd92e56f9bd6d41f199236442906454a6fbd48d26e7bd6896c3faf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "537e06fea4dd92e56f9bd6d41f199236442906454a6fbd48d26e7bd6896c3faf", kill_on_drop: false }`
[INFO] [stdout] 537e06fea4dd92e56f9bd6d41f199236442906454a6fbd48d26e7bd6896c3faf