[INFO] cloning repository https://github.com/AiziChen/wland
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/AiziChen/wland" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAiziChen%2Fwland", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAiziChen%2Fwland'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 07ad2633fa8013b51b9ac765de26e39212274e69
[INFO] checking AiziChen/wland against master#36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923 for pr-81863
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAiziChen%2Fwland" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/AiziChen/wland on toolchain 36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/AiziChen/wland
[INFO] finished tweaking git repo https://github.com/AiziChen/wland
[INFO] tweaked toml for git repo https://github.com/AiziChen/wland written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/AiziChen/wland already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 423feb34c239a0024703d37e7903530f8473ca4ba074c07036e2bc5301d7c6d0
[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" "423feb34c239a0024703d37e7903530f8473ca4ba074c07036e2bc5301d7c6d0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "423feb34c239a0024703d37e7903530f8473ca4ba074c07036e2bc5301d7c6d0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "423feb34c239a0024703d37e7903530f8473ca4ba074c07036e2bc5301d7c6d0", kill_on_drop: false }`
[INFO] [stdout] 423feb34c239a0024703d37e7903530f8473ca4ba074c07036e2bc5301d7c6d0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "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] f12a1eaccf6be78dfef5a60744cb5585643930b65c7a0be4b3d11059bcacbe31
[INFO] running `Command { std: "docker" "start" "-a" "f12a1eaccf6be78dfef5a60744cb5585643930b65c7a0be4b3d11059bcacbe31", kill_on_drop: false }`
[INFO] [stderr]     Checking wland-client v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::str::Chars`
[INFO] [stdout]  --> src/lib.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::str::Chars;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::str::Chars`
[INFO] [stdout]  --> src/lib.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::str::Chars;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::fs`
[INFO] [stdout]  --> src/bin/main.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::fs;
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::io::Bytes`
[INFO] [stdout]  --> src/bin/main.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::io::Bytes;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::thread`
[INFO] [stdout]  --> src/bin/main.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::thread;
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::time::Duration`
[INFO] [stdout]  --> src/bin/main.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use std::time::Duration;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]   --> src/bin/main.rs:31:5
[INFO] [stdout]    |
[INFO] [stdout] 31 | /     /**
[INFO] [stdout] 32 | |     * get `client` request header
[INFO] [stdout] 33 | |     */
[INFO] [stdout]    | |______^
[INFO] [stdout] 34 | /     let cdata = {
[INFO] [stdout] 35 | |         let mut buff = [0; HAS_READ];
[INFO] [stdout] 36 | |         let mut size = HAS_READ;
[INFO] [stdout] 37 | |         let mut col = Vec::new();
[INFO] [stdout] ...  |
[INFO] [stdout] 42 | |         col
[INFO] [stdout] 43 | |     };
[INFO] [stdout]    | |______- rustdoc does not generate documentation for statements
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_doc_comments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]   --> src/bin/main.rs:45:5
[INFO] [stdout]    |
[INFO] [stdout] 45 | /     /**
[INFO] [stdout] 46 | |      * get ci
[INFO] [stdout] 47 | |      */
[INFO] [stdout]    | |_______^
[INFO] [stdout] 48 | /     let ci = {
[INFO] [stdout] 49 | |         let mut ci = 0;
[INFO] [stdout] 50 | |         let mut i = 0;
[INFO] [stdout] 51 | |         for c in &cdata {
[INFO] [stdout] ...  |
[INFO] [stdout] 64 | |         }
[INFO] [stdout] 65 | |     };
[INFO] [stdout]    | |______- rustdoc does not generate documentation for statements
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]   --> src/bin/main.rs:66:5
[INFO] [stdout]    |
[INFO] [stdout] 66 | /     /**
[INFO] [stdout] 67 | |      * DIY the `client` header
[INFO] [stdout] 68 | |      */
[INFO] [stdout]    | |_______^
[INFO] [stdout] 69 |       let cheader = String::from_utf8_lossy(&cdata[..ci]);
[INFO] [stdout]    |       ---------------------------------------------------- rustdoc does not generate documentation for statements
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]   --> src/bin/main.rs:86:5
[INFO] [stdout]    |
[INFO] [stdout] 86 | /     /**
[INFO] [stdout] 87 | |      * request forward to destination connection
[INFO] [stdout] 88 | |      */
[INFO] [stdout]    | |_______^
[INFO] [stdout] 89 |       let cdata = &cdata[ci..];
[INFO] [stdout]    |       ------------------------- rustdoc does not generate documentation for statements
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::fs`
[INFO] [stdout]  --> src/bin/main.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::fs;
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::io::Bytes`
[INFO] [stdout]  --> src/bin/main.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::io::Bytes;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::thread`
[INFO] [stdout]  --> src/bin/main.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::thread;
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::time::Duration`
[INFO] [stdout]  --> src/bin/main.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use std::time::Duration;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]   --> src/bin/main.rs:31:5
[INFO] [stdout]    |
[INFO] [stdout] 31 | /     /**
[INFO] [stdout] 32 | |     * get `client` request header
[INFO] [stdout] 33 | |     */
[INFO] [stdout]    | |______^
[INFO] [stdout] 34 | /     let cdata = {
[INFO] [stdout] 35 | |         let mut buff = [0; HAS_READ];
[INFO] [stdout] 36 | |         let mut size = HAS_READ;
[INFO] [stdout] 37 | |         let mut col = Vec::new();
[INFO] [stdout] ...  |
[INFO] [stdout] 42 | |         col
[INFO] [stdout] 43 | |     };
[INFO] [stdout]    | |______- rustdoc does not generate documentation for statements
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_doc_comments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]   --> src/bin/main.rs:45:5
[INFO] [stdout]    |
[INFO] [stdout] 45 | /     /**
[INFO] [stdout] 46 | |      * get ci
[INFO] [stdout] 47 | |      */
[INFO] [stdout]    | |_______^
[INFO] [stdout] 48 | /     let ci = {
[INFO] [stdout] 49 | |         let mut ci = 0;
[INFO] [stdout] 50 | |         let mut i = 0;
[INFO] [stdout] 51 | |         for c in &cdata {
[INFO] [stdout] ...  |
[INFO] [stdout] 64 | |         }
[INFO] [stdout] 65 | |     };
[INFO] [stdout]    | |______- rustdoc does not generate documentation for statements
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]   --> src/bin/main.rs:66:5
[INFO] [stdout]    |
[INFO] [stdout] 66 | /     /**
[INFO] [stdout] 67 | |      * DIY the `client` header
[INFO] [stdout] 68 | |      */
[INFO] [stdout]    | |_______^
[INFO] [stdout] 69 |       let cheader = String::from_utf8_lossy(&cdata[..ci]);
[INFO] [stdout]    |       ---------------------------------------------------- rustdoc does not generate documentation for statements
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]   --> src/bin/main.rs:86:5
[INFO] [stdout]    |
[INFO] [stdout] 86 | /     /**
[INFO] [stdout] 87 | |      * request forward to destination connection
[INFO] [stdout] 88 | |      */
[INFO] [stdout]    | |_______^
[INFO] [stdout] 89 |       let cdata = &cdata[ci..];
[INFO] [stdout]    |       ------------------------- rustdoc does not generate documentation for statements
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.81s
[INFO] running `Command { std: "docker" "inspect" "f12a1eaccf6be78dfef5a60744cb5585643930b65c7a0be4b3d11059bcacbe31", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f12a1eaccf6be78dfef5a60744cb5585643930b65c7a0be4b3d11059bcacbe31", kill_on_drop: false }`
[INFO] [stdout] f12a1eaccf6be78dfef5a60744cb5585643930b65c7a0be4b3d11059bcacbe31