[INFO] fetching crate xrs 0.0.1...
[INFO] testing xrs-0.0.1 against 1.90.0 for beta-1.91-3
[INFO] extracting crate xrs 0.0.1 into /workspace/builds/worker-1-tc1/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-1-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate xrs 0.0.1 on toolchain 1.90.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "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" "+1.90.0" "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" "+1.90.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded xrb v0.0.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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" "+1.90.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 28469c35a2094da77f94ae5756ff86d675e323f739d61543889b33f54964540e
[INFO] running `Command { std: "docker" "start" "-a" "28469c35a2094da77f94ae5756ff86d675e323f739d61543889b33f54964540e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "28469c35a2094da77f94ae5756ff86d675e323f739d61543889b33f54964540e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "28469c35a2094da77f94ae5756ff86d675e323f739d61543889b33f54964540e", kill_on_drop: false }`
[INFO] [stdout] 28469c35a2094da77f94ae5756ff86d675e323f739d61543889b33f54964540e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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" "+1.90.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3af1b0c6e198a3634bc81e972dcfbc0aa7c68d406aef021aaa94622f3c37d7b5
[INFO] running `Command { std: "docker" "start" "-a" "3af1b0c6e198a3634bc81e972dcfbc0aa7c68d406aef021aaa94622f3c37d7b5", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]    Compiling xrb v0.0.0
[INFO] [stderr]    Compiling xrs v0.0.1 (/opt/rustwide/workdir)
[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)]` 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 `dev` profile [unoptimized + debuginfo] target(s) in 0.59s
[INFO] running `Command { std: "docker" "inspect" "3af1b0c6e198a3634bc81e972dcfbc0aa7c68d406aef021aaa94622f3c37d7b5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3af1b0c6e198a3634bc81e972dcfbc0aa7c68d406aef021aaa94622f3c37d7b5", kill_on_drop: false }`
[INFO] [stdout] 3af1b0c6e198a3634bc81e972dcfbc0aa7c68d406aef021aaa94622f3c37d7b5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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" "+1.90.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8b0bea5b84fec84c88a5dad4e0b20b3a39b656ea7b8ff2827681d38ebe3c8688
[INFO] running `Command { std: "docker" "start" "-a" "8b0bea5b84fec84c88a5dad4e0b20b3a39b656ea7b8ff2827681d38ebe3c8688", kill_on_drop: false }`
[INFO] [stderr]    Compiling xrs v0.0.1 (/opt/rustwide/workdir)
[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)]` 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] [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)]` 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 0.13s
[INFO] running `Command { std: "docker" "inspect" "8b0bea5b84fec84c88a5dad4e0b20b3a39b656ea7b8ff2827681d38ebe3c8688", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8b0bea5b84fec84c88a5dad4e0b20b3a39b656ea7b8ff2827681d38ebe3c8688", kill_on_drop: false }`
[INFO] [stdout] 8b0bea5b84fec84c88a5dad4e0b20b3a39b656ea7b8ff2827681d38ebe3c8688
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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" "+1.90.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 0eb3b0ad39b9846cb98fd49781b4746c13e9139cdc81d8bf1081d79705559485
[INFO] running `Command { std: "docker" "start" "-a" "0eb3b0ad39b9846cb98fd49781b4746c13e9139cdc81d8bf1081d79705559485", kill_on_drop: false }`
[INFO] [stderr] warning: unused variable: `event`
[INFO] [stderr]   --> src/connection.rs:10:17
[INFO] [stderr]    |
[INFO] [stderr] 10 |     pub fn send(event: impl Event) {}
[INFO] [stderr]    |                 ^^^^^ help: if this is intentional, prefix it with an underscore: `_event`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `display_server`
[INFO] [stderr]   --> src/connection.rs:39:16
[INFO] [stderr]    |
[INFO] [stderr] 39 | pub fn connect(display_server: DisplayServer) -> Connection {
[INFO] [stderr]    |                ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_display_server`
[INFO] [stderr] 
[INFO] [stderr] warning: `xrs` (lib) generated 2 warnings
[INFO] [stderr] warning: `xrs` (lib test) generated 2 warnings (2 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/xrs-65e5aee7f368202f)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests xrs
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test src/connection.rs - connection::connect (line 35) ... ok
[INFO] [stdout] test src/connection.rs - connection::connect (line 31) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.10s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "0eb3b0ad39b9846cb98fd49781b4746c13e9139cdc81d8bf1081d79705559485", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0eb3b0ad39b9846cb98fd49781b4746c13e9139cdc81d8bf1081d79705559485", kill_on_drop: false }`
[INFO] [stdout] 0eb3b0ad39b9846cb98fd49781b4746c13e9139cdc81d8bf1081d79705559485