[INFO] cloning repository https://github.com/semc-labs/salo [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/semc-labs/salo" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsemc-labs%2Fsalo", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsemc-labs%2Fsalo'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 734f789151848647aecc68dc1b9d410f5df5ab7a [INFO] testing semc-labs/salo against 1.55.0 for beta-1.56-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsemc-labs%2Fsalo" "/workspace/builds/worker-12/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-12/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/semc-labs/salo 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/semc-labs/salo [INFO] finished tweaking git repo https://github.com/semc-labs/salo [INFO] tweaked toml for git repo https://github.com/semc-labs/salo written to /workspace/builds/worker-12/source/Cargo.toml [INFO] crate git repo https://github.com/semc-labs/salo 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] Downloading crates ... [INFO] [stderr] Downloaded pico-args v0.4.2 [INFO] [stderr] Downloaded ascii-canvas v3.0.0 [INFO] [stderr] Downloaded lalrpop-util v0.19.6 [INFO] [stderr] Downloaded lalrpop v0.19.6 [INFO] [stderr] Downloaded mortal v0.2.2 [INFO] [stderr] Downloaded smallstr v0.2.0 [INFO] [stderr] Downloaded terminfo v0.7.3 [INFO] [stderr] Downloaded color-eyre v0.5.11 [INFO] [stderr] Downloaded siphasher v0.3.6 [INFO] [stderr] Downloaded aquamarine v0.1.10 [INFO] [stderr] Downloaded owo-colors v1.3.0 [INFO] [stderr] Downloaded typestate-proc-macro v0.8.0 [INFO] [stderr] Downloaded typestate v0.8.0 [INFO] [stderr] Downloaded ariadne v0.1.3 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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] 435a1206696e5583fc350f12d8e27fb0f71e92fd830c42868967aee7f352abe2 [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "435a1206696e5583fc350f12d8e27fb0f71e92fd830c42868967aee7f352abe2", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "435a1206696e5583fc350f12d8e27fb0f71e92fd830c42868967aee7f352abe2", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "435a1206696e5583fc350f12d8e27fb0f71e92fd830c42868967aee7f352abe2", kill_on_drop: false }` [INFO] [stdout] 435a1206696e5583fc350f12d8e27fb0f71e92fd830c42868967aee7f352abe2 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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] 951d4f5bc4237712258cf4664add91f8db7473ea736b70c13943a95de16bc5fb [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "951d4f5bc4237712258cf4664add91f8db7473ea736b70c13943a95de16bc5fb", kill_on_drop: false }` [INFO] [stderr] Compiling syn v1.0.74 [INFO] [stderr] Compiling siphasher v0.3.6 [INFO] [stderr] Compiling serde v1.0.127 [INFO] [stderr] Compiling serde_json v1.0.66 [INFO] [stderr] Compiling pico-args v0.4.2 [INFO] [stderr] Compiling eyre v0.6.5 [INFO] [stderr] Compiling gimli v0.25.0 [INFO] [stderr] Compiling indenter v0.3.3 [INFO] [stderr] Compiling owo-colors v1.3.0 [INFO] [stderr] Compiling regex-automata v0.1.10 [INFO] [stderr] Compiling itertools v0.10.1 [INFO] [stderr] Compiling smallstr v0.2.0 [INFO] [stderr] Compiling backtrace v0.3.61 [INFO] [stderr] Compiling ariadne v0.1.3 [INFO] [stderr] Compiling getrandom v0.1.16 [INFO] [stderr] Compiling dirs-sys-next v0.1.2 [INFO] [stderr] Compiling dirs-sys v0.3.6 [INFO] [stderr] Compiling dirs v1.0.5 [INFO] [stderr] Compiling ena v0.14.0 [INFO] [stderr] Compiling object v0.26.0 [INFO] [stderr] Compiling nom v5.1.2 [INFO] [stderr] Compiling idna v0.2.3 [INFO] [stderr] Compiling nix v0.17.0 [INFO] [stderr] Compiling phf_shared v0.8.0 [INFO] [stderr] Compiling dirs-next v2.0.0 [INFO] [stderr] Compiling rand_core v0.5.1 [INFO] [stderr] Compiling dirs v2.0.2 [INFO] [stderr] Compiling petgraph v0.5.1 [INFO] [stderr] Compiling lalrpop-util v0.19.6 [INFO] [stderr] Compiling term v0.7.0 [INFO] [stderr] Compiling string_cache v0.8.1 [INFO] [stderr] Compiling phf v0.8.0 [INFO] [stderr] Compiling chrono v0.4.19 [INFO] [stderr] Compiling rand_chacha v0.2.2 [INFO] [stderr] Compiling rand_pcg v0.2.1 [INFO] [stderr] Compiling url v2.2.2 [INFO] [stderr] Compiling matchers v0.0.1 [INFO] [stderr] Compiling rand v0.7.3 [INFO] [stderr] Compiling ascii-canvas v3.0.0 [INFO] [stderr] Compiling lalrpop v0.19.6 [INFO] [stderr] Compiling phf_generator v0.8.0 [INFO] [stderr] Compiling phf_codegen v0.8.0 [INFO] [stderr] Compiling addr2line v0.16.0 [INFO] [stderr] Compiling terminfo v0.7.3 [INFO] [stderr] Compiling tracing-serde v0.1.2 [INFO] [stderr] Compiling proc-macro-error v1.0.4 [INFO] [stderr] Compiling darling_core v0.13.0 [INFO] [stderr] Compiling tracing-attributes v0.1.15 [INFO] [stderr] Compiling clap_derive v3.0.0-beta.2 [INFO] [stderr] Compiling aquamarine v0.1.10 [INFO] [stderr] Compiling darling_macro v0.13.0 [INFO] [stderr] Compiling mortal v0.2.2 [INFO] [stderr] Compiling darling v0.13.0 [INFO] [stderr] Compiling tracing v0.1.26 [INFO] [stderr] Compiling typestate-proc-macro v0.8.0 [INFO] [stderr] Compiling tracing-subscriber v0.2.19 [INFO] [stderr] Compiling linefeed v0.6.0 [INFO] [stderr] Compiling clap v3.0.0-beta.2 [INFO] [stderr] Compiling tracing-error v0.1.2 [INFO] [stderr] Compiling color-spantrace v0.1.6 [INFO] [stderr] Compiling color-eyre v0.5.11 [INFO] [stderr] Compiling typestate v0.8.0 [INFO] [stderr] Compiling salo v0.0.0 (/opt/rustwide/workdir/crates/salo) [INFO] [stderr] Compiling saloc-lib v0.0.0 (/opt/rustwide/workdir/crates/saloc-lib) [INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel [INFO] [stdout] --> crates/saloc-lib/src/lib.rs:3:1 [INFO] [stdout] | [INFO] [stdout] 3 | #![feature(format_args_capture, crate_visibility_modifier, test)] [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 `saloc-lib` due to 2 previous errors [INFO] running `Command { std: "docker" "inspect" "951d4f5bc4237712258cf4664add91f8db7473ea736b70c13943a95de16bc5fb", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "951d4f5bc4237712258cf4664add91f8db7473ea736b70c13943a95de16bc5fb", kill_on_drop: false }` [INFO] [stdout] 951d4f5bc4237712258cf4664add91f8db7473ea736b70c13943a95de16bc5fb