[INFO] fetching crate frcds 0.1.0...
[INFO] checking frcds-0.1.0 against try#9cfe725f0995b018340c519db1b2f3cf8a7e0631 for pr-81174
[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 9cfe725f0995b018340c519db1b2f3cf8a7e0631
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9cfe725f0995b018340c519db1b2f3cf8a7e0631" "read-manifest" "--manifest-path" "Cargo.toml", 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" "+9cfe725f0995b018340c519db1b2f3cf8a7e0631" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9cfe725f0995b018340c519db1b2f3cf8a7e0631" "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" "rustops/crates-build-env@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+9cfe725f0995b018340c519db1b2f3cf8a7e0631" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] c4e4703c834a17b5bd697d567e9238c51800d5d5f1ebeca4551b02172d0b790f
[INFO] running `Command { std: "docker" "start" "-a" "c4e4703c834a17b5bd697d567e9238c51800d5d5f1ebeca4551b02172d0b790f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c4e4703c834a17b5bd697d567e9238c51800d5d5f1ebeca4551b02172d0b790f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c4e4703c834a17b5bd697d567e9238c51800d5d5f1ebeca4551b02172d0b790f", kill_on_drop: false }`
[INFO] [stdout] c4e4703c834a17b5bd697d567e9238c51800d5d5f1ebeca4551b02172d0b790f
[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" "rustops/crates-build-env@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+9cfe725f0995b018340c519db1b2f3cf8a7e0631" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] b87f7a0088e8dab3a6b31fd0c9bec92cd539b4d54b4e9e7c30e1fc162cfd289b
[INFO] running `Command { std: "docker" "start" "-a" "b87f7a0088e8dab3a6b31fd0c9bec92cd539b4d54b4e9e7c30e1fc162cfd289b", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling syn v1.0.60
[INFO] [stderr]    Compiling miniz_oxide v0.4.3
[INFO] [stderr]     Checking backtrace v0.3.56
[INFO] [stderr]    Compiling synstructure v0.12.4
[INFO] [stderr]    Compiling failure_derive v0.1.8
[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: 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: 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: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 14.80s
[INFO] running `Command { std: "docker" "inspect" "b87f7a0088e8dab3a6b31fd0c9bec92cd539b4d54b4e9e7c30e1fc162cfd289b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b87f7a0088e8dab3a6b31fd0c9bec92cd539b4d54b4e9e7c30e1fc162cfd289b", kill_on_drop: false }`
[INFO] [stdout] b87f7a0088e8dab3a6b31fd0c9bec92cd539b4d54b4e9e7c30e1fc162cfd289b