[INFO] fetching crate xrs 0.0.1...
[INFO] building xrs-0.0.1 against try#d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6 for pr-146237-1
[INFO] extracting crate xrs 0.0.1 into /workspace/builds/worker-3-tc2/source
[INFO] started tweaking crates.io crate xrs 0.0.1
[INFO] finished tweaking crates.io crate xrs 0.0.1
[INFO] tweaked toml for crates.io crate xrs 0.0.1 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate xrs 0.0.1 on toolchain d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "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" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 8 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d1bd46bc2bd752f91ec546ac893aeaffa39c5195e353a6970a85ef426c7f17e9
[INFO] running `Command { std: "docker" "start" "-a" "d1bd46bc2bd752f91ec546ac893aeaffa39c5195e353a6970a85ef426c7f17e9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d1bd46bc2bd752f91ec546ac893aeaffa39c5195e353a6970a85ef426c7f17e9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d1bd46bc2bd752f91ec546ac893aeaffa39c5195e353a6970a85ef426c7f17e9", kill_on_drop: false }`
[INFO] [stdout] d1bd46bc2bd752f91ec546ac893aeaffa39c5195e353a6970a85ef426c7f17e9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ebef9929e02482a74663212b125e2897b3e298399cd4b03442b502e8f0c30b03
[INFO] running `Command { std: "docker" "start" "-a" "ebef9929e02482a74663212b125e2897b3e298399cd4b03442b502e8f0c30b03", kill_on_drop: false }`
[INFO] [stderr]    Compiling xrb v0.0.0
[INFO] [stderr]    Compiling xrs v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `display_server`
[INFO] [stdout]   --> src/connection.rs:39:16
[INFO] [stdout]    |
[INFO] [stdout] 39 | pub fn connect(display_server: DisplayServer) -> Connection {
[INFO] [stdout]    |                ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_display_server`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `event`
[INFO] [stdout]   --> src/connection.rs:10:17
[INFO] [stdout]    |
[INFO] [stdout] 10 |     pub fn send(event: impl Event) {}
[INFO] [stdout]    |                 ^^^^^ help: if this is intentional, prefix it with an underscore: `_event`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.27s
[INFO] running `Command { std: "docker" "inspect" "ebef9929e02482a74663212b125e2897b3e298399cd4b03442b502e8f0c30b03", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ebef9929e02482a74663212b125e2897b3e298399cd4b03442b502e8f0c30b03", kill_on_drop: false }`
[INFO] [stdout] ebef9929e02482a74663212b125e2897b3e298399cd4b03442b502e8f0c30b03
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9be54e5a3a66d0bcb226c828ff8e162c89a0a02c819b3b90c34df76508ac720b
[INFO] running `Command { std: "docker" "start" "-a" "9be54e5a3a66d0bcb226c828ff8e162c89a0a02c819b3b90c34df76508ac720b", kill_on_drop: false }`
[INFO] [stderr]    Compiling xrs v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `display_server`
[INFO] [stdout]   --> src/connection.rs:39:16
[INFO] [stdout]    |
[INFO] [stdout] 39 | pub fn connect(display_server: DisplayServer) -> Connection {
[INFO] [stdout]    |                ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_display_server`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `event`
[INFO] [stdout]   --> src/connection.rs:10:17
[INFO] [stdout]    |
[INFO] [stdout] 10 |     pub fn send(event: impl Event) {}
[INFO] [stdout]    |                 ^^^^^ help: if this is intentional, prefix it with an underscore: `_event`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `event`
[INFO] [stdout]   --> src/connection.rs:10:17
[INFO] [stdout]    |
[INFO] [stdout] 10 |     pub fn send(event: impl Event) {}
[INFO] [stdout]    |                 ^^^^^ help: if this is intentional, prefix it with an underscore: `_event`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `display_server`
[INFO] [stdout]   --> src/connection.rs:39:16
[INFO] [stdout]    |
[INFO] [stdout] 39 | pub fn connect(display_server: DisplayServer) -> Connection {
[INFO] [stdout]    |                ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_display_server`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.64s
[INFO] running `Command { std: "docker" "inspect" "9be54e5a3a66d0bcb226c828ff8e162c89a0a02c819b3b90c34df76508ac720b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9be54e5a3a66d0bcb226c828ff8e162c89a0a02c819b3b90c34df76508ac720b", kill_on_drop: false }`
[INFO] [stdout] 9be54e5a3a66d0bcb226c828ff8e162c89a0a02c819b3b90c34df76508ac720b