[INFO] cloning repository https://github.com/buxx/rollac
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/buxx/rollac" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbuxx%2Frollac", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbuxx%2Frollac'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 81962ddff70e355f78094bfee762b7f4870438c2
[INFO] checking buxx/rollac against try#b20a093d9fb1ffaa04ae9852cb034864a992bafd for pr-85073
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbuxx%2Frollac" "/workspace/builds/worker-9/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-9/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/buxx/rollac on toolchain b20a093d9fb1ffaa04ae9852cb034864a992bafd
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b20a093d9fb1ffaa04ae9852cb034864a992bafd" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/buxx/rollac
[INFO] finished tweaking git repo https://github.com/buxx/rollac
[INFO] tweaked toml for git repo https://github.com/buxx/rollac written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate git repo https://github.com/buxx/rollac already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b20a093d9fb1ffaa04ae9852cb034864a992bafd" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "+b20a093d9fb1ffaa04ae9852cb034864a992bafd" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 520a4d66e9350c06ae0995365b547f18a4cae207b9cf41df3840fb3093cd81c2
[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" "520a4d66e9350c06ae0995365b547f18a4cae207b9cf41df3840fb3093cd81c2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "520a4d66e9350c06ae0995365b547f18a4cae207b9cf41df3840fb3093cd81c2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "520a4d66e9350c06ae0995365b547f18a4cae207b9cf41df3840fb3093cd81c2", kill_on_drop: false }`
[INFO] [stdout] 520a4d66e9350c06ae0995365b547f18a4cae207b9cf41df3840fb3093cd81c2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "+b20a093d9fb1ffaa04ae9852cb034864a992bafd" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ac93a4ff9d02d30bb80f037172f6f790caca763bd201678725726b03d6d87c76
[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" "ac93a4ff9d02d30bb80f037172f6f790caca763bd201678725726b03d6d87c76", kill_on_drop: false }`
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[INFO] [stderr]     Checking tokio-util v0.3.1
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[INFO] [stderr]     Checking websocket v0.26.2
[INFO] [stderr]    Compiling pin-project-internal v1.0.2
[INFO] [stderr]    Compiling futures-macro v0.3.8
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[INFO] [stderr]    Compiling structopt-derive v0.4.14
[INFO] [stderr]    Compiling serde_derive v1.0.118
[INFO] [stderr]     Checking pin-project v0.4.27
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[INFO] [stderr]     Checking futures-executor v0.3.8
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[INFO] [stderr]     Checking hyper-tls v0.4.3
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[INFO] [stderr]     Checking rollac v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `ws_reader_handle`
[INFO] [stdout]   --> src/socket.rs:25:5
[INFO] [stdout]    |
[INFO] [stdout] 25 |     ws_reader_handle: Option<JoinHandle<()>>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `ws_sender_handle`
[INFO] [stdout]   --> src/socket.rs:27:5
[INFO] [stdout]    |
[INFO] [stdout] 27 |     ws_sender_handle: Option<JoinHandle<()>>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `closing`
[INFO] [stdout]   --> src/socket.rs:29:5
[INFO] [stdout]    |
[INFO] [stdout] 29 |     closing: bool,
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `close`
[INFO] [stdout]    --> src/socket.rs:181:18
[INFO] [stdout]     |
[INFO] [stdout] 181 |     pub async fn close(&mut self) -> Result<(), error::Error> {
[INFO] [stdout]     |                  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `tile_id`
[INFO] [stdout]   --> src/world.rs:49:12
[INFO] [stdout]    |
[INFO] [stdout] 49 |     pub fn tile_id(&self, row_i: i32, col_i: i32) -> Option<String> {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `ws_reader_handle`
[INFO] [stdout]   --> src/socket.rs:25:5
[INFO] [stdout]    |
[INFO] [stdout] 25 |     ws_reader_handle: Option<JoinHandle<()>>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `ws_sender_handle`
[INFO] [stdout]   --> src/socket.rs:27:5
[INFO] [stdout]    |
[INFO] [stdout] 27 |     ws_sender_handle: Option<JoinHandle<()>>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `closing`
[INFO] [stdout]   --> src/socket.rs:29:5
[INFO] [stdout]    |
[INFO] [stdout] 29 |     closing: bool,
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `close`
[INFO] [stdout]    --> src/socket.rs:181:18
[INFO] [stdout]     |
[INFO] [stdout] 181 |     pub async fn close(&mut self) -> Result<(), error::Error> {
[INFO] [stdout]     |                  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `tile_id`
[INFO] [stdout]   --> src/world.rs:49:12
[INFO] [stdout]    |
[INFO] [stdout] 49 |     pub fn tile_id(&self, row_i: i32, col_i: i32) -> Option<String> {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 45.35s
[INFO] running `Command { std: "docker" "inspect" "ac93a4ff9d02d30bb80f037172f6f790caca763bd201678725726b03d6d87c76", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ac93a4ff9d02d30bb80f037172f6f790caca763bd201678725726b03d6d87c76", kill_on_drop: false }`
[INFO] [stdout] ac93a4ff9d02d30bb80f037172f6f790caca763bd201678725726b03d6d87c76