[INFO] cloning repository https://github.com/siph/mywm
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/siph/mywm" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsiph%2Fmywm", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsiph%2Fmywm'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ff650f3859a184642293129b644d7971a80e747a
[INFO] checking siph/mywm 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%2Fsiph%2Fmywm" "/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/siph/mywm
[INFO] finished tweaking git repo https://github.com/siph/mywm
[INFO] tweaked toml for git repo https://github.com/siph/mywm written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/siph/mywm 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/siph/mywm 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] [stderr]     Blocking waiting for file lock on package cache
[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] 891b32ede2dceecf94efbbdcbd4017ca5cb02675ef0758f22cbf7c27f7c57411
[INFO] running `Command { std: "docker" "start" "-a" "891b32ede2dceecf94efbbdcbd4017ca5cb02675ef0758f22cbf7c27f7c57411", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "891b32ede2dceecf94efbbdcbd4017ca5cb02675ef0758f22cbf7c27f7c57411", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "891b32ede2dceecf94efbbdcbd4017ca5cb02675ef0758f22cbf7c27f7c57411", kill_on_drop: false }`
[INFO] [stdout] 891b32ede2dceecf94efbbdcbd4017ca5cb02675ef0758f22cbf7c27f7c57411
[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] 4202a37a9e317159c6dd6296e7c3f1e134790de437ab25a30456b135d123d767
[INFO] running `Command { std: "docker" "start" "-a" "4202a37a9e317159c6dd6296e7c3f1e134790de437ab25a30456b135d123d767", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.38
[INFO] [stderr]    Compiling unicode-xid v0.2.3
[INFO] [stderr]    Compiling syn v1.0.94
[INFO] [stderr]    Compiling unicode-segmentation v1.9.0
[INFO] [stderr]    Compiling serde v1.0.137
[INFO] [stderr]    Compiling strum v0.18.0
[INFO] [stderr]    Compiling version-compare v0.0.10
[INFO] [stderr]    Compiling libc v0.2.125
[INFO] [stderr]    Compiling futures-task v0.3.21
[INFO] [stderr]    Compiling futures-util v0.3.21
[INFO] [stderr]    Compiling anyhow v1.0.57
[INFO] [stderr]     Checking slab v0.4.6
[INFO] [stderr]    Compiling either v1.6.1
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling itertools v0.9.0
[INFO] [stderr]     Checking once_cell v1.10.0
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling cairo-rs v0.9.1
[INFO] [stderr]    Compiling rustversion v1.0.6
[INFO] [stderr]    Compiling pango v0.9.1
[INFO] [stderr]    Compiling indexmap v1.8.1
[INFO] [stderr]    Compiling pangocairo v0.10.0
[INFO] [stderr]     Checking tracing-core v0.1.26
[INFO] [stderr]     Checking os_str_bytes v6.0.1
[INFO] [stderr]     Checking hashbrown v0.11.2
[INFO] [stderr]     Checking textwrap v0.15.0
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]     Checking clap_lex v0.2.0
[INFO] [stderr]    Compiling quote v1.0.18
[INFO] [stderr]    Compiling xcb v0.9.0
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]     Checking nix v0.20.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking simplelog v0.8.0
[INFO] [stderr]    Compiling toml v0.5.9
[INFO] [stderr]    Compiling proc-macro-crate v0.1.5
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling thiserror-impl v1.0.31
[INFO] [stderr]    Compiling strum_macros v0.18.0
[INFO] [stderr]    Compiling futures-macro v0.3.21
[INFO] [stderr]    Compiling strum_macros v0.20.1
[INFO] [stderr]    Compiling glib-macros v0.10.1
[INFO] [stderr]    Compiling tracing-attributes v0.1.21
[INFO] [stderr]    Compiling clap_derive v3.1.18
[INFO] [stderr]     Checking tracing v0.1.34
[INFO] [stderr]    Compiling thiserror v1.0.31
[INFO] [stderr]    Compiling strum v0.20.0
[INFO] [stderr]    Compiling penrose_keysyms v0.1.1
[INFO] [stderr]     Checking clap v3.1.18
[INFO] [stderr]    Compiling penrose_proc v0.1.3
[INFO] [stderr]    Compiling system-deps v1.3.2
[INFO] [stderr]    Compiling glib-sys v0.10.1
[INFO] [stderr]    Compiling gobject-sys v0.10.0
[INFO] [stderr]    Compiling cairo-sys-rs v0.10.0
[INFO] [stderr]    Compiling pango-sys v0.10.0
[INFO] [stderr]    Compiling pangocairo-sys v0.11.0
[INFO] [stderr]     Checking futures-executor v0.3.21
[INFO] [stderr]     Checking glib v0.10.3
[INFO] [stderr]     Checking penrose v0.2.1
[INFO] [stderr]     Checking mywm v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: constant `PURPLE` is never used
[INFO] [stdout]  --> src/styles/colors.rs:4:11
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub const PURPLE: &str = "#a020f0";
[INFO] [stdout]   |           ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `BLUE` is never used
[INFO] [stdout]  --> src/styles/colors.rs:5:11
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub const BLUE: &str = "#0000ff";
[INFO] [stdout]   |           ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `RED` is never used
[INFO] [stdout]  --> src/styles/colors.rs:6:11
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub const RED: &str = "#ff0000";
[INFO] [stdout]   |           ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `PURPLE` is never used
[INFO] [stdout]  --> src/styles/colors.rs:4:11
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub const PURPLE: &str = "#a020f0";
[INFO] [stdout]   |           ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `BLUE` is never used
[INFO] [stdout]  --> src/styles/colors.rs:5:11
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub const BLUE: &str = "#0000ff";
[INFO] [stdout]   |           ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `RED` is never used
[INFO] [stdout]  --> src/styles/colors.rs:6:11
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub const RED: &str = "#ff0000";
[INFO] [stdout]   |           ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, std::convert::Infallible>
[INFO] [stdout]  --> src/config.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | /     /// The default terminal that mywm will use
[INFO] [stdout] 7 | |     #[clap(long, env)]
[INFO] [stdout] 8 | |     pub mywm_terminal: 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<std::string::String, std::convert::Infallible>
[INFO] [stdout]   --> src/config.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | /     /// The default application launcher that mywm will use
[INFO] [stdout] 11 | |     #[clap(long, env)]
[INFO] [stdout] 12 | |     pub mywm_launcher: String,
[INFO] [stdout]    | |_____________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, std::convert::Infallible>
[INFO] [stdout]   --> src/config.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 | /     /// The path to the start script that mywm will use
[INFO] [stdout] 15 | |     #[clap(long, env)]
[INFO] [stdout] 16 | |     pub mywm_start_script: String,
[INFO] [stdout]    | |_________________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, std::convert::Infallible>
[INFO] [stdout]  --> src/config.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | /     /// The default terminal that mywm will use
[INFO] [stdout] 7 | |     #[clap(long, env)]
[INFO] [stdout] 8 | |     pub mywm_terminal: 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<std::string::String, std::convert::Infallible>
[INFO] [stdout]   --> src/config.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | /     /// The default application launcher that mywm will use
[INFO] [stdout] 11 | |     #[clap(long, env)]
[INFO] [stdout] 12 | |     pub mywm_launcher: String,
[INFO] [stdout]    | |_____________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, std::convert::Infallible>
[INFO] [stdout]   --> src/config.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 | /     /// The path to the start script that mywm will use
[INFO] [stdout] 15 | |     #[clap(long, env)]
[INFO] [stdout] 16 | |     pub mywm_start_script: String,
[INFO] [stdout]    | |_________________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `mywm` (bin "mywm") due to 3 previous errors; 3 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `mywm` (bin "mywm" test) due to 3 previous errors; 3 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "4202a37a9e317159c6dd6296e7c3f1e134790de437ab25a30456b135d123d767", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4202a37a9e317159c6dd6296e7c3f1e134790de437ab25a30456b135d123d767", kill_on_drop: false }`
[INFO] [stdout] 4202a37a9e317159c6dd6296e7c3f1e134790de437ab25a30456b135d123d767
