[INFO] cloning repository https://github.com/cmizzi/ibswm
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/cmizzi/ibswm" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcmizzi%2Fibswm", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcmizzi%2Fibswm'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c5820e3be93cbe78cf7a2072c61bfe82b5800fed
[INFO] checking cmizzi/ibswm against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcmizzi%2Fibswm" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/cmizzi/ibswm
[INFO] finished tweaking git repo https://github.com/cmizzi/ibswm
[INFO] tweaked toml for git repo https://github.com/cmizzi/ibswm written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/cmizzi/ibswm on toolchain 4f260f0f20b3133d20cfb50353c0221943af5796
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/cmizzi/ibswm already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6361ff71bd2f4156e957edb0e59053113fd9e0b85b8d0e1121fa6823faa4994f
[INFO] running `Command { std: "docker" "start" "-a" "6361ff71bd2f4156e957edb0e59053113fd9e0b85b8d0e1121fa6823faa4994f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6361ff71bd2f4156e957edb0e59053113fd9e0b85b8d0e1121fa6823faa4994f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6361ff71bd2f4156e957edb0e59053113fd9e0b85b8d0e1121fa6823faa4994f", kill_on_drop: false }`
[INFO] [stdout] 6361ff71bd2f4156e957edb0e59053113fd9e0b85b8d0e1121fa6823faa4994f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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 -Dunmustuse_in_always_ok" "-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8be7a49379171534665fffe718d0e905cec346d6cda679bf52f3631383dd6ec2
[INFO] running `Command { std: "docker" "start" "-a" "8be7a49379171534665fffe718d0e905cec346d6cda679bf52f3631383dd6ec2", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.77
[INFO] [stderr]    Compiling proc-macro2 v1.0.21
[INFO] [stderr]    Compiling syn v1.0.41
[INFO] [stderr]    Compiling unicode-segmentation v1.6.0
[INFO] [stderr]     Checking hashbrown v0.9.0
[INFO] [stderr]     Checking termcolor v1.1.0
[INFO] [stderr]     Checking regex-syntax v0.6.18
[INFO] [stderr]    Compiling proc-macro-error-attr v0.4.12
[INFO] [stderr]    Compiling proc-macro-error v0.4.12
[INFO] [stderr]    Compiling indexmap v1.6.0
[INFO] [stderr]     Checking humantime v1.3.0
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking os_str_bytes v2.3.2
[INFO] [stderr]     Checking aho-corasick v0.7.13
[INFO] [stderr]    Compiling nix v0.17.0
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking gethostname v0.2.1
[INFO] [stderr]     Checking nix v0.18.0
[INFO] [stderr]     Checking regex v1.3.9
[INFO] [stderr]     Checking env_logger v0.7.1
[INFO] [stderr]    Compiling syn-mid v0.5.0
[INFO] [stderr]     Checking x11rb v0.6.0
[INFO] [stderr]    Compiling clap_derive v3.0.0-beta.1
[INFO] [stderr]     Checking clap v3.0.0-beta.1
[INFO] [stderr]     Checking ibsc v0.1.0 (/opt/rustwide/workdir/cli)
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> cli/src/cli.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | /     #[clap(short, long, default_value = "/tmp/ibswm.sock")]
[INFO] [stdout] 13 | |     pub socket: String,
[INFO] [stdout]    | |______________________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> cli/src/cli.rs:36:5
[INFO] [stdout]    |
[INFO] [stdout] 36 | /     /// Apply configuration on a specific monitor.
[INFO] [stdout] 37 | |     #[clap(short, long)]
[INFO] [stdout] 38 | |     pub monitor: Option<String>,
[INFO] [stdout]    | |_______________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> cli/src/cli.rs:40:5
[INFO] [stdout]    |
[INFO] [stdout] 40 | /     /// Apply configuration on a specific monitor.
[INFO] [stdout] 41 | |     pub key: String,
[INFO] [stdout]    | |___________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> cli/src/cli.rs:43:5
[INFO] [stdout]    |
[INFO] [stdout] 43 | /     /// Apply configuration on a specific monitor.
[INFO] [stdout] 44 | |     pub value: Option<String>,
[INFO] [stdout]    | |_____________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> cli/src/cli.rs:49:5
[INFO] [stdout]    |
[INFO] [stdout] 49 | /     /// Monitor name.
[INFO] [stdout] 50 | |     pub monitor: String,
[INFO] [stdout]    | |_______________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> cli/src/cli.rs:52:5
[INFO] [stdout]    |
[INFO] [stdout] 52 | /     /// Custom monitor name.
[INFO] [stdout] 53 | |     #[clap(short, long)]
[INFO] [stdout] 54 | |     pub name: Option<String>,
[INFO] [stdout]    | |____________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> cli/src/cli.rs:56:5
[INFO] [stdout]    |
[INFO] [stdout] 56 | /     /// List of desktops to create.
[INFO] [stdout] 57 | |     #[clap(short, long)]
[INFO] [stdout] 58 | |     pub desktops: Vec<String>,
[INFO] [stdout]    | |_____________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> cli/src/cli.rs:63:5
[INFO] [stdout]    |
[INFO] [stdout] 63 | /     /// Default states to define on new application matching the <application> name.
[INFO] [stdout] 64 | |     #[clap(short, long)]
[INFO] [stdout] 65 | |     pub state: Option<Vec<String>>,
[INFO] [stdout]    | |__________________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> cli/src/cli.rs:67:5
[INFO] [stdout]    |
[INFO] [stdout] 67 | /     /// Default desktop to map new application matching the <application> name.
[INFO] [stdout] 68 | |     #[clap(short, long)]
[INFO] [stdout] 69 | |     pub desktop: Option<String>,
[INFO] [stdout]    | |_______________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> cli/src/cli.rs:71:5
[INFO] [stdout]    |
[INFO] [stdout] 71 | /     /// Application X11 name.
[INFO] [stdout] 72 | |     pub application: String,
[INFO] [stdout]    | |___________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `ibsc` (lib test) due to 10 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> cli/src/cli.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | /     #[clap(short, long, default_value = "/tmp/ibswm.sock")]
[INFO] [stdout] 13 | |     pub socket: String,
[INFO] [stdout]    | |______________________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> cli/src/cli.rs:36:5
[INFO] [stdout]    |
[INFO] [stdout] 36 | /     /// Apply configuration on a specific monitor.
[INFO] [stdout] 37 | |     #[clap(short, long)]
[INFO] [stdout] 38 | |     pub monitor: Option<String>,
[INFO] [stdout]    | |_______________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> cli/src/cli.rs:40:5
[INFO] [stdout]    |
[INFO] [stdout] 40 | /     /// Apply configuration on a specific monitor.
[INFO] [stdout] 41 | |     pub key: String,
[INFO] [stdout]    | |___________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> cli/src/cli.rs:43:5
[INFO] [stdout]    |
[INFO] [stdout] 43 | /     /// Apply configuration on a specific monitor.
[INFO] [stdout] 44 | |     pub value: Option<String>,
[INFO] [stdout]    | |_____________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> cli/src/cli.rs:49:5
[INFO] [stdout]    |
[INFO] [stdout] 49 | /     /// Monitor name.
[INFO] [stdout] 50 | |     pub monitor: String,
[INFO] [stdout]    | |_______________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> cli/src/cli.rs:52:5
[INFO] [stdout]    |
[INFO] [stdout] 52 | /     /// Custom monitor name.
[INFO] [stdout] 53 | |     #[clap(short, long)]
[INFO] [stdout] 54 | |     pub name: Option<String>,
[INFO] [stdout]    | |____________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> cli/src/cli.rs:56:5
[INFO] [stdout]    |
[INFO] [stdout] 56 | /     /// List of desktops to create.
[INFO] [stdout] 57 | |     #[clap(short, long)]
[INFO] [stdout] 58 | |     pub desktops: Vec<String>,
[INFO] [stdout]    | |_____________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> cli/src/cli.rs:63:5
[INFO] [stdout]    |
[INFO] [stdout] 63 | /     /// Default states to define on new application matching the <application> name.
[INFO] [stdout] 64 | |     #[clap(short, long)]
[INFO] [stdout] 65 | |     pub state: Option<Vec<String>>,
[INFO] [stdout]    | |__________________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> cli/src/cli.rs:67:5
[INFO] [stdout]    |
[INFO] [stdout] 67 | /     /// Default desktop to map new application matching the <application> name.
[INFO] [stdout] 68 | |     #[clap(short, long)]
[INFO] [stdout] 69 | |     pub desktop: Option<String>,
[INFO] [stdout]    | |_______________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> cli/src/cli.rs:71:5
[INFO] [stdout]    |
[INFO] [stdout] 71 | /     /// Application X11 name.
[INFO] [stdout] 72 | |     pub application: String,
[INFO] [stdout]    | |___________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `ibsc` (lib) due to 10 previous errors
[INFO] running `Command { std: "docker" "inspect" "8be7a49379171534665fffe718d0e905cec346d6cda679bf52f3631383dd6ec2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8be7a49379171534665fffe718d0e905cec346d6cda679bf52f3631383dd6ec2", kill_on_drop: false }`
[INFO] [stdout] 8be7a49379171534665fffe718d0e905cec346d6cda679bf52f3631383dd6ec2
