[INFO] cloning repository https://github.com/zmpeg/learning_rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/zmpeg/learning_rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzmpeg%2Flearning_rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzmpeg%2Flearning_rust'...
[INFO] [stderr] /workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzmpeg%2Flearning_rust/branches/: No space left on device
[WARN] Retrying crate fetch in 3 seconds (attempt 1)
[INFO] cloning repository https://github.com/zmpeg/learning_rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/zmpeg/learning_rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzmpeg%2Flearning_rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzmpeg%2Flearning_rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9453401d644e178ab487422ee4feb983fd97e844
[INFO] testing zmpeg/learning_rust against 1.85.0 for beta-1.86-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzmpeg%2Flearning_rust" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/zmpeg/learning_rust on toolchain 1.85.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.85.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/zmpeg/learning_rust
[INFO] finished tweaking git repo https://github.com/zmpeg/learning_rust
[INFO] tweaked toml for git repo https://github.com/zmpeg/learning_rust written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/zmpeg/learning_rust 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" "+1.85.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded fern_macros v0.1.6
[INFO] [stderr]   Downloaded fern v0.1.12
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:3959728d45483eb673ba100a951a6b9f5012970368db2a9e08e0ac9b67c8a5ad" "/opt/rustwide/cargo-home/bin/cargo" "+1.85.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 51b0ef4bea00969e25288f2a2c1da26517e0b965fd6b3a3fbaf570802e24bfdc
[INFO] running `Command { std: "docker" "start" "-a" "51b0ef4bea00969e25288f2a2c1da26517e0b965fd6b3a3fbaf570802e24bfdc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "51b0ef4bea00969e25288f2a2c1da26517e0b965fd6b3a3fbaf570802e24bfdc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "51b0ef4bea00969e25288f2a2c1da26517e0b965fd6b3a3fbaf570802e24bfdc", kill_on_drop: false }`
[INFO] [stdout] 51b0ef4bea00969e25288f2a2c1da26517e0b965fd6b3a3fbaf570802e24bfdc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:3959728d45483eb673ba100a951a6b9f5012970368db2a9e08e0ac9b67c8a5ad" "/opt/rustwide/cargo-home/bin/cargo" "+1.85.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 140e52aebde179b842f35a5eb33dde30571bac36bfdba2c37cd749c05b6b7d07
[INFO] running `Command { std: "docker" "start" "-a" "140e52aebde179b842f35a5eb33dde30571bac36bfdba2c37cd749c05b6b7d07", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] [stderr]    Compiling fern v0.1.12
[INFO] [stdout] error: malformed `unstable` attribute input
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/fern-0.1.12/src/lib.rs:137:1
[INFO] [stdout]     |
[INFO] [stdout] 137 | #[unstable]
[INFO] [stdout]     | ^^^^^^^^^^^ help: must be of the form: `#[unstable(feature = "name", reason = "...", issue = "N")]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: malformed `unstable` attribute input
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/fern-0.1.12/src/local.rs:23:1
[INFO] [stdout]    |
[INFO] [stdout] 23 | #[unstable]
[INFO] [stdout]    | ^^^^^^^^^^^ help: must be of the form: `#[unstable(feature = "name", reason = "...", issue = "N")]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: malformed `unstable` attribute input
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/fern-0.1.12/src/local.rs:35:1
[INFO] [stdout]    |
[INFO] [stdout] 35 | #[unstable]
[INFO] [stdout]    | ^^^^^^^^^^^ help: must be of the form: `#[unstable(feature = "name", reason = "...", issue = "N")]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `fern` (lib) due to 3 previous errors
[INFO] running `Command { std: "docker" "inspect" "140e52aebde179b842f35a5eb33dde30571bac36bfdba2c37cd749c05b6b7d07", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "140e52aebde179b842f35a5eb33dde30571bac36bfdba2c37cd749c05b6b7d07", kill_on_drop: false }`
[INFO] [stdout] 140e52aebde179b842f35a5eb33dde30571bac36bfdba2c37cd749c05b6b7d07