[INFO] cloning repository https://github.com/Cretezy/i3-back
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Cretezy/i3-back" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCretezy%2Fi3-back", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCretezy%2Fi3-back'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 500ce9b16a4ad13464850c6fde87cac6b34187f8
[INFO] testing Cretezy/i3-back against 1.75.0 for beta-1.76-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCretezy%2Fi3-back" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Cretezy/i3-back on toolchain 1.75.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.75.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Cretezy/i3-back
[INFO] finished tweaking git repo https://github.com/Cretezy/i3-back
[INFO] tweaked toml for git repo https://github.com/Cretezy/i3-back written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/Cretezy/i3-back 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" "+1.75.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 25a8c70465ad633b80532c877c7a8a8400b1ad87ffad96d4c6ceb94f52af622b
[INFO] running `Command { std: "docker" "start" "-a" "25a8c70465ad633b80532c877c7a8a8400b1ad87ffad96d4c6ceb94f52af622b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "25a8c70465ad633b80532c877c7a8a8400b1ad87ffad96d4c6ceb94f52af622b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "25a8c70465ad633b80532c877c7a8a8400b1ad87ffad96d4c6ceb94f52af622b", kill_on_drop: false }`
[INFO] [stdout] 25a8c70465ad633b80532c877c7a8a8400b1ad87ffad96d4c6ceb94f52af622b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] af4feb0339b235b3a7d9f874f6172ca785a9c7d332913716bb38931a30501659
[INFO] running `Command { std: "docker" "start" "-a" "af4feb0339b235b3a7d9f874f6172ca785a9c7d332913716bb38931a30501659", kill_on_drop: false }`
[INFO] [stderr]    Compiling version_check v0.9.4
[INFO] [stderr]    Compiling proc-macro2 v1.0.51
[INFO] [stderr]    Compiling libc v0.2.139
[INFO] [stderr]    Compiling quote v1.0.23
[INFO] [stderr]    Compiling unicode-ident v1.0.6
[INFO] [stderr]    Compiling io-lifetimes v1.0.5
[INFO] [stderr]    Compiling bitflags v1.3.2
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling serde v1.0.152
[INFO] [stderr]    Compiling rustix v0.36.8
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling serde_json v1.0.93
[INFO] [stderr]    Compiling linux-raw-sys v0.1.4
[INFO] [stderr]    Compiling itoa v1.0.5
[INFO] [stderr]    Compiling ryu v1.0.12
[INFO] [stderr]    Compiling heck v0.4.1
[INFO] [stderr]    Compiling static_assertions v1.1.0
[INFO] [stderr]    Compiling os_str_bytes v6.4.1
[INFO] [stderr]    Compiling anyhow v1.0.69
[INFO] [stderr]    Compiling byteorder v1.4.3
[INFO] [stderr]    Compiling strsim v0.10.0
[INFO] [stderr]    Compiling termcolor v1.2.0
[INFO] [stderr]    Compiling clap_lex v0.3.2
[INFO] [stderr]    Compiling once_cell v1.17.1
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling nix v0.26.2
[INFO] [stderr]    Compiling ctrlc v3.2.5
[INFO] [stderr]    Compiling is-terminal v0.4.4
[INFO] [stderr]    Compiling clap_derive v4.1.0
[INFO] [stderr]    Compiling i3ipc v0.10.1
[INFO] [stderr]    Compiling clap v4.1.6
[INFO] [stderr]    Compiling i3-back v0.3.2 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/main.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(let_chains)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `i3-back` (bin "i3-back") due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "af4feb0339b235b3a7d9f874f6172ca785a9c7d332913716bb38931a30501659", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "af4feb0339b235b3a7d9f874f6172ca785a9c7d332913716bb38931a30501659", kill_on_drop: false }`
[INFO] [stdout] af4feb0339b235b3a7d9f874f6172ca785a9c7d332913716bb38931a30501659
