[INFO] cloning repository https://github.com/6A/nixcfg [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/6A/nixcfg" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F6A%2Fnixcfg", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F6A%2Fnixcfg'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 79bf77f6e7cbe99a9774bf7988458b3350c41695 [INFO] testing 6A/nixcfg against 1.55.0 for beta-1.56-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F6A%2Fnixcfg" "/workspace/builds/worker-13/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-13/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/6A/nixcfg on toolchain 1.55.0 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/6A/nixcfg [INFO] finished tweaking git repo https://github.com/6A/nixcfg [INFO] tweaked toml for git repo https://github.com/6A/nixcfg written to /workspace/builds/worker-13/source/Cargo.toml [INFO] crate git repo https://github.com/6A/nixcfg already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [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 cc v1.0.24 [INFO] [stderr] Downloaded proc-macro2 v0.4.18 [INFO] [stderr] Downloaded arenatree v0.1.0 [INFO] [stderr] Downloaded smol_str v0.1.6 [INFO] [stderr] Downloaded rnix v0.4.0 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 9034acfbb0ace693113d881dc8dc42b3ae09d9e8a9f04122b15e82d9e250094a [INFO] running `Command { std: "docker" "start" "-a" "9034acfbb0ace693113d881dc8dc42b3ae09d9e8a9f04122b15e82d9e250094a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "9034acfbb0ace693113d881dc8dc42b3ae09d9e8a9f04122b15e82d9e250094a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "9034acfbb0ace693113d881dc8dc42b3ae09d9e8a9f04122b15e82d9e250094a", kill_on_drop: false }` [INFO] [stdout] 9034acfbb0ace693113d881dc8dc42b3ae09d9e8a9f04122b15e82d9e250094a [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 62b6b34fa6ab075069432bdc6d45e90e1b31b2feab144cc2160998b5b40c7f91 [INFO] running `Command { std: "docker" "start" "-a" "62b6b34fa6ab075069432bdc6d45e90e1b31b2feab144cc2160998b5b40c7f91", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Compiling proc-macro2 v0.4.18 [INFO] [stderr] Compiling unicode-xid v0.1.0 [INFO] [stderr] Compiling libc v0.2.43 [INFO] [stderr] Compiling cc v1.0.24 [INFO] [stderr] Compiling failure_derive v0.1.2 [INFO] [stderr] Compiling cfg-if v0.1.5 [INFO] [stderr] Compiling unicode-width v0.1.5 [INFO] [stderr] Compiling rustc-demangle v0.1.9 [INFO] [stderr] Compiling vec_map v0.8.1 [INFO] [stderr] Compiling strsim v0.7.0 [INFO] [stderr] Compiling bitflags v1.0.4 [INFO] [stderr] Compiling ansi_term v0.11.0 [INFO] [stderr] Compiling smol_str v0.1.6 [INFO] [stderr] Compiling arenatree v0.1.0 [INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/arenatree-0.1.0/src/lib.rs:1:1 [INFO] [stdout] | [INFO] [stdout] 1 | #![feature(nll)] [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 `arenatree` due to 2 previous errors [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stderr] error: build failed [INFO] running `Command { std: "docker" "inspect" "62b6b34fa6ab075069432bdc6d45e90e1b31b2feab144cc2160998b5b40c7f91", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "62b6b34fa6ab075069432bdc6d45e90e1b31b2feab144cc2160998b5b40c7f91", kill_on_drop: false }` [INFO] [stdout] 62b6b34fa6ab075069432bdc6d45e90e1b31b2feab144cc2160998b5b40c7f91