[INFO] cloning repository https://github.com/Kyllingene/onsite
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Kyllingene/onsite" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKyllingene%2Fonsite", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKyllingene%2Fonsite'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 57195150f5fcaeffa7350208c9d50ba2a1a4e52c
[INFO] testing Kyllingene/onsite against 1.90.0 for beta-1.91-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKyllingene%2Fonsite" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/Kyllingene/onsite
[INFO] finished tweaking git repo https://github.com/Kyllingene/onsite
[INFO] tweaked toml for git repo https://github.com/Kyllingene/onsite written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/Kyllingene/onsite on toolchain 1.90.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/Kyllingene/onsite 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" "+1.90.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded sarge v2.0.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d496a9e4b4ca6514b34ba9b6426ee8aaffca02ce3b3961324b18745b1c5af0c2
[INFO] running `Command { std: "docker" "start" "-a" "d496a9e4b4ca6514b34ba9b6426ee8aaffca02ce3b3961324b18745b1c5af0c2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d496a9e4b4ca6514b34ba9b6426ee8aaffca02ce3b3961324b18745b1c5af0c2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d496a9e4b4ca6514b34ba9b6426ee8aaffca02ce3b3961324b18745b1c5af0c2", kill_on_drop: false }`
[INFO] [stdout] d496a9e4b4ca6514b34ba9b6426ee8aaffca02ce3b3961324b18745b1c5af0c2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6d9569c0c4d986e051971d563167baad8972ea1acd1d338c9e38482c3f2c3b3b
[INFO] running `Command { std: "docker" "start" "-a" "6d9569c0c4d986e051971d563167baad8972ea1acd1d338c9e38482c3f2c3b3b", kill_on_drop: false }`
[INFO] [stderr]    Compiling sarge v2.0.3
[INFO] [stderr]    Compiling xml-rs v0.8.4
[INFO] [stderr]    Compiling onsite v1.0.5 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0658]: use of unstable library feature `path_file_prefix`
[INFO] [stdout]   --> src/main.rs:22:22
[INFO] [stdout]    |
[INFO] [stdout] 22 |     if clean && file.file_prefix().is_some() {
[INFO] [stdout]    |                      ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #86319 <https://github.com/rust-lang/rust/issues/86319> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature `path_file_prefix`
[INFO] [stdout]   --> src/main.rs:24:17
[INFO] [stdout]    |
[INFO] [stdout] 24 |         if file.file_prefix().unwrap() != "index" {
[INFO] [stdout]    |                 ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #86319 <https://github.com/rust-lang/rust/issues/86319> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0658`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `onsite` (bin "onsite") due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "6d9569c0c4d986e051971d563167baad8972ea1acd1d338c9e38482c3f2c3b3b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6d9569c0c4d986e051971d563167baad8972ea1acd1d338c9e38482c3f2c3b3b", kill_on_drop: false }`
[INFO] [stdout] 6d9569c0c4d986e051971d563167baad8972ea1acd1d338c9e38482c3f2c3b3b