[INFO] fetching crate cardgames 0.2.0...
[INFO] checking cardgames-0.2.0 against master#a609fb45efad59dfd459c76e50899be9f0583b5a for pr-80579
[INFO] extracting crate cardgames 0.2.0 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate cardgames 0.2.0 on toolchain a609fb45efad59dfd459c76e50899be9f0583b5a
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate cardgames 0.2.0
[INFO] finished tweaking crates.io crate cardgames 0.2.0
[INFO] tweaked toml for crates.io crate cardgames 0.2.0 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 65ae6474fc6435b294c99b5c74adf8eba1f73c1f438b20479ebea65e42575cc7
[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" "65ae6474fc6435b294c99b5c74adf8eba1f73c1f438b20479ebea65e42575cc7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "65ae6474fc6435b294c99b5c74adf8eba1f73c1f438b20479ebea65e42575cc7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "65ae6474fc6435b294c99b5c74adf8eba1f73c1f438b20479ebea65e42575cc7", kill_on_drop: false }`
[INFO] [stdout] 65ae6474fc6435b294c99b5c74adf8eba1f73c1f438b20479ebea65e42575cc7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "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] 53386caae5c6f4d186bb3f595d1c9014ca5274d4f244024b4d4e22bcf0586d06
[INFO] running `Command { std: "docker" "start" "-a" "53386caae5c6f4d186bb3f595d1c9014ca5274d4f244024b4d4e22bcf0586d06", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.81
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling syn v1.0.56
[INFO] [stderr]    Compiling serde_derive v1.0.118
[INFO] [stderr]     Checking ppv-lite86 v0.2.10
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling num-bigint v0.2.6
[INFO] [stderr]    Compiling num-complex v0.2.4
[INFO] [stderr]    Compiling num-rational v0.2.4
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]     Checking itertools v0.9.0
[INFO] [stderr]    Compiling quote v1.0.8
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking num v0.2.1
[INFO] [stderr]     Checking fraction v0.6.3
[INFO] [stderr]     Checking serde v1.0.118
[INFO] [stderr]     Checking cardgames v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `message`
[INFO] [stdout]    --> src/games/briscola.rs:209:30
[INFO] [stdout]     |
[INFO] [stdout] 209 |     fn handle_message(&self, message: String, from: Player) -> Vec<GameStatus> {
[INFO] [stdout]     |                              ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_message`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `from`
[INFO] [stdout]    --> src/games/briscola.rs:209:47
[INFO] [stdout]     |
[INFO] [stdout] 209 |     fn handle_message(&self, message: String, from: Player) -> Vec<GameStatus> {
[INFO] [stdout]     |                                               ^^^^ help: if this is intentional, prefix it with an underscore: `_from`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `message`
[INFO] [stdout]    --> src/games/beccaccino.rs:219:30
[INFO] [stdout]     |
[INFO] [stdout] 219 |     fn handle_message(&self, message: String, from: Player) -> Vec<GameStatus> {
[INFO] [stdout]     |                              ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_message`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `from`
[INFO] [stdout]    --> src/games/beccaccino.rs:219:47
[INFO] [stdout]     |
[INFO] [stdout] 219 |     fn handle_message(&self, message: String, from: Player) -> Vec<GameStatus> {
[INFO] [stdout]     |                                               ^^^^ help: if this is intentional, prefix it with an underscore: `_from`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `message`
[INFO] [stdout]    --> src/games/briscola.rs:209:30
[INFO] [stdout]     |
[INFO] [stdout] 209 |     fn handle_message(&self, message: String, from: Player) -> Vec<GameStatus> {
[INFO] [stdout]     |                              ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_message`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `from`
[INFO] [stdout]    --> src/games/briscola.rs:209:47
[INFO] [stdout]     |
[INFO] [stdout] 209 |     fn handle_message(&self, message: String, from: Player) -> Vec<GameStatus> {
[INFO] [stdout]     |                                               ^^^^ help: if this is intentional, prefix it with an underscore: `_from`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `message`
[INFO] [stdout]    --> src/games/beccaccino.rs:219:30
[INFO] [stdout]     |
[INFO] [stdout] 219 |     fn handle_message(&self, message: String, from: Player) -> Vec<GameStatus> {
[INFO] [stdout]     |                              ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_message`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `from`
[INFO] [stdout]    --> src/games/beccaccino.rs:219:47
[INFO] [stdout]     |
[INFO] [stdout] 219 |     fn handle_message(&self, message: String, from: Player) -> Vec<GameStatus> {
[INFO] [stdout]     |                                               ^^^^ help: if this is intentional, prefix it with an underscore: `_from`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 45.79s
[INFO] running `Command { std: "docker" "inspect" "53386caae5c6f4d186bb3f595d1c9014ca5274d4f244024b4d4e22bcf0586d06", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "53386caae5c6f4d186bb3f595d1c9014ca5274d4f244024b4d4e22bcf0586d06", kill_on_drop: false }`
[INFO] [stdout] 53386caae5c6f4d186bb3f595d1c9014ca5274d4f244024b4d4e22bcf0586d06