[INFO] cloning repository https://github.com/sisshiki1969/ruruby [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/sisshiki1969/ruruby" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsisshiki1969%2Fruruby", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsisshiki1969%2Fruruby'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] b3941208eb6603e71c9a6a6eec0ad2d125355c88 [INFO] testing sisshiki1969/ruruby against 1.55.0 for beta-1.56-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsisshiki1969%2Fruruby" "/workspace/builds/worker-10/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-10/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/sisshiki1969/ruruby 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/sisshiki1969/ruruby [INFO] finished tweaking git repo https://github.com/sisshiki1969/ruruby [INFO] tweaked toml for git repo https://github.com/sisshiki1969/ruruby written to /workspace/builds/worker-10/source/Cargo.toml [INFO] crate git repo https://github.com/sisshiki1969/ruruby 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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] d7ab716fa626758c49bd0c3ecf252d9ee7118364c6a4676179e89b65c880951d [INFO] running `Command { std: "docker" "start" "-a" "d7ab716fa626758c49bd0c3ecf252d9ee7118364c6a4676179e89b65c880951d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "d7ab716fa626758c49bd0c3ecf252d9ee7118364c6a4676179e89b65c880951d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "d7ab716fa626758c49bd0c3ecf252d9ee7118364c6a4676179e89b65c880951d", kill_on_drop: false }` [INFO] [stdout] d7ab716fa626758c49bd0c3ecf252d9ee7118364c6a4676179e89b65c880951d [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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] d82d67e9bdf441633e7a5450290501d853b0de05f2b0c1f6ae1a6115c545f6f4 [INFO] running `Command { std: "docker" "start" "-a" "d82d67e9bdf441633e7a5450290501d853b0de05f2b0c1f6ae1a6115c545f6f4", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.99 [INFO] [stderr] Compiling memchr v2.4.0 [INFO] [stderr] Compiling syn v1.0.74 [INFO] [stderr] Compiling regex-syntax v0.6.25 [INFO] [stderr] Compiling endian-type v0.1.2 [INFO] [stderr] Compiling bit-vec v0.6.3 [INFO] [stderr] Compiling utf8parse v0.2.0 [INFO] [stderr] Compiling ruruby v0.3.1 (/opt/rustwide/workdir) [INFO] [stderr] Compiling divrem v1.0.0 [INFO] [stderr] Compiling ansi_term v0.12.1 [INFO] [stderr] Compiling num-traits v0.2.14 [INFO] [stderr] Compiling num-integer v0.1.44 [INFO] [stderr] Compiling memoffset v0.6.4 [INFO] [stderr] Compiling num-bigint v0.4.0 [INFO] [stderr] Compiling num-iter v0.1.42 [INFO] [stderr] Compiling num-rational v0.4.0 [INFO] [stderr] Compiling nibble_vec v0.1.0 [INFO] [stderr] Compiling fxhash v0.2.1 [INFO] [stderr] Compiling arraystring v0.3.0 [INFO] [stderr] Compiling radix_trie v0.2.1 [INFO] [stderr] Compiling bit-set v0.5.2 [INFO] [stderr] Compiling aho-corasick v0.7.18 [INFO] [stderr] Compiling num-complex v0.4.0 [INFO] [stderr] Compiling regex v1.5.3 [INFO] [stderr] Compiling getrandom v0.2.2 [INFO] [stderr] Compiling dirs-sys-next v0.1.2 [INFO] [stderr] Compiling atty v0.2.14 [INFO] [stderr] Compiling nix v0.22.1 [INFO] [stderr] Compiling terminal_size v0.1.16 [INFO] [stderr] Compiling dirs-sys v0.3.6 [INFO] [stderr] Compiling fd-lock v3.0.0 [INFO] [stderr] Compiling time v0.1.43 [INFO] [stderr] Compiling region v3.0.0 [INFO] [stderr] Compiling dirs v3.0.2 [INFO] [stderr] Compiling clap v2.33.3 [INFO] [stderr] Compiling dirs-next v2.0.0 [INFO] [stderr] Compiling rand_core v0.6.2 [INFO] [stderr] Compiling rand_chacha v0.3.0 [INFO] [stderr] Compiling chrono v0.4.19 [INFO] [stderr] Compiling rand v0.8.3 [INFO] [stderr] Compiling enum-iterator-derive v0.7.0 [INFO] [stderr] Compiling fancy-regex v0.7.0 [INFO] [stderr] Compiling console v0.14.1 [INFO] [stderr] Compiling enum-iterator v0.7.0 [INFO] [stderr] Compiling num v0.4.0 [INFO] [stderr] Compiling rustyline v9.0.0 [INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel [INFO] [stdout] --> src/lib.rs:1:1 [INFO] [stdout] | [INFO] [stdout] 1 | #![feature(box_patterns)] [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel [INFO] [stdout] --> src/lib.rs:2:1 [INFO] [stdout] | [INFO] [stdout] 2 | #![feature(pattern)] [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel [INFO] [stdout] --> src/lib.rs:3:1 [INFO] [stdout] | [INFO] [stdout] 3 | #![feature(asm, naked_functions)] [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel [INFO] [stdout] --> src/lib.rs:4:1 [INFO] [stdout] | [INFO] [stdout] 4 | #![feature(once_cell)] [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 4 previous errors [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0554`. [INFO] [stdout] [INFO] [stderr] error: could not compile `ruruby` due to 5 previous errors [INFO] running `Command { std: "docker" "inspect" "d82d67e9bdf441633e7a5450290501d853b0de05f2b0c1f6ae1a6115c545f6f4", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "d82d67e9bdf441633e7a5450290501d853b0de05f2b0c1f6ae1a6115c545f6f4", kill_on_drop: false }` [INFO] [stdout] d82d67e9bdf441633e7a5450290501d853b0de05f2b0c1f6ae1a6115c545f6f4