[INFO] cloning repository https://github.com/rm1138/swaysome
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/rm1138/swaysome" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frm1138%2Fswaysome", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frm1138%2Fswaysome'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d75595f3e74cd2e4632746ad0a4bbc2403962482
[INFO] checking rm1138/swaysome against master#dfd7b8d03fb93d0e03147d28b3be6d93260fa94d for pr-87050
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frm1138%2Fswaysome" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/rm1138/swaysome on toolchain dfd7b8d03fb93d0e03147d28b3be6d93260fa94d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/rm1138/swaysome
[INFO] finished tweaking git repo https://github.com/rm1138/swaysome
[INFO] tweaked toml for git repo https://github.com/rm1138/swaysome written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/rm1138/swaysome already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4929842236d8a5611a018e4913876439169f68c3fa151eadf4a7864994c00868
[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" "4929842236d8a5611a018e4913876439169f68c3fa151eadf4a7864994c00868", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4929842236d8a5611a018e4913876439169f68c3fa151eadf4a7864994c00868", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4929842236d8a5611a018e4913876439169f68c3fa151eadf4a7864994c00868", kill_on_drop: false }`
[INFO] [stdout] 4929842236d8a5611a018e4913876439169f68c3fa151eadf4a7864994c00868
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "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] 0825f44002dfe8cbde41717d186ffeeaa2c1b25e9a8f1548a97418b5bb5acbcb
[INFO] running `Command { std: "docker" "start" "-a" "0825f44002dfe8cbde41717d186ffeeaa2c1b25e9a8f1548a97418b5bb5acbcb", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.123
[INFO] [stderr]     Checking serde_json v1.0.64
[INFO] [stderr]     Checking swaysome v1.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `output`
[INFO] [stdout]    --> src/util.rs:130:9
[INFO] [stdout]     |
[INFO] [stdout] 130 |     let output = get_current_output_name(stream);
[INFO] [stdout]     |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_output`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `workspaces`
[INFO] [stdout]    --> src/util.rs:132:9
[INFO] [stdout]     |
[INFO] [stdout] 132 |     let workspaces = get_workspaces(&stream);
[INFO] [stdout]     |         ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_workspaces`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `SUBSCRIBE`
[INFO] [stdout]  --> src/command.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub const SUBSCRIBE: u32 = 2;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `output`
[INFO] [stdout]    --> src/util.rs:130:9
[INFO] [stdout]     |
[INFO] [stdout] 130 |     let output = get_current_output_name(stream);
[INFO] [stdout]     |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_output`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `workspaces`
[INFO] [stdout]    --> src/util.rs:132:9
[INFO] [stdout]     |
[INFO] [stdout] 132 |     let workspaces = get_workspaces(&stream);
[INFO] [stdout]     |         ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_workspaces`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `SUBSCRIBE`
[INFO] [stdout]  --> src/command.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub const SUBSCRIBE: u32 = 2;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.80s
[INFO] running `Command { std: "docker" "inspect" "0825f44002dfe8cbde41717d186ffeeaa2c1b25e9a8f1548a97418b5bb5acbcb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0825f44002dfe8cbde41717d186ffeeaa2c1b25e9a8f1548a97418b5bb5acbcb", kill_on_drop: false }`
[INFO] [stdout] 0825f44002dfe8cbde41717d186ffeeaa2c1b25e9a8f1548a97418b5bb5acbcb