[INFO] cloning repository https://github.com/samwho/rust-debugger [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/samwho/rust-debugger" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsamwho%2Frust-debugger", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsamwho%2Frust-debugger'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] b0a245dcfa8023e0d7778c516e473c64dcb2e724 [INFO] testing samwho/rust-debugger against 1.55.0 for beta-1.56-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsamwho%2Frust-debugger" "/workspace/builds/worker-35/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-35/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/samwho/rust-debugger 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/samwho/rust-debugger [INFO] finished tweaking git repo https://github.com/samwho/rust-debugger [INFO] tweaked toml for git repo https://github.com/samwho/rust-debugger written to /workspace/builds/worker-35/source/Cargo.toml [INFO] crate git repo https://github.com/samwho/rust-debugger 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 elf v0.0.10 [INFO] [stderr] Downloaded gimli v0.20.0 [INFO] [stderr] Downloaded wasmparser v0.51.4 [INFO] [stderr] Downloaded object v0.18.0 [INFO] [stderr] Downloaded rustyline v6.1.2 [INFO] [stderr] Downloaded iced-x86 v1.1.0 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-35/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-35/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] 66722bf0138e4dc9bbabe4f76340a3b0cc81b5416b0811ea25a2e5bede22afdc [INFO] running `Command { std: "docker" "start" "-a" "66722bf0138e4dc9bbabe4f76340a3b0cc81b5416b0811ea25a2e5bede22afdc", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "66722bf0138e4dc9bbabe4f76340a3b0cc81b5416b0811ea25a2e5bede22afdc", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "66722bf0138e4dc9bbabe4f76340a3b0cc81b5416b0811ea25a2e5bede22afdc", kill_on_drop: false }` [INFO] [stdout] 66722bf0138e4dc9bbabe4f76340a3b0cc81b5416b0811ea25a2e5bede22afdc [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-35/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-35/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] 891162544d435941c600d551c2f2f2be1eb28eeae8a35380aeda37b3429907b4 [INFO] running `Command { std: "docker" "start" "-a" "891162544d435941c600d551c2f2f2be1eb28eeae8a35380aeda37b3429907b4", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.68 [INFO] [stderr] Compiling proc-macro2 v1.0.10 [INFO] [stderr] Compiling crc32fast v1.2.0 [INFO] [stderr] Compiling syn v1.0.17 [INFO] [stderr] Compiling serde v1.0.106 [INFO] [stderr] Compiling log v0.4.8 [INFO] [stderr] Compiling regex-syntax v0.6.17 [INFO] [stderr] Compiling nix v0.17.0 [INFO] [stderr] Compiling byteorder v1.3.4 [INFO] [stderr] Compiling adler32 v1.0.4 [INFO] [stderr] Compiling target-lexicon v0.10.0 [INFO] [stderr] Compiling quick-error v1.2.3 [INFO] [stderr] Compiling void v1.0.2 [INFO] [stderr] Compiling either v1.5.3 [INFO] [stderr] Compiling numtoa v0.1.0 [INFO] [stderr] Compiling termcolor v1.1.0 [INFO] [stderr] Compiling rustc-demangle v0.1.16 [INFO] [stderr] Compiling arrayvec v0.5.1 [INFO] [stderr] Compiling stable_deref_trait v1.1.1 [INFO] [stderr] Compiling cassowary v0.3.0 [INFO] [stderr] Compiling utf8parse v0.2.0 [INFO] [stderr] Compiling smallvec v1.3.0 [INFO] [stderr] Compiling static_assertions v0.3.4 [INFO] [stderr] Compiling fallible-iterator v0.2.0 [INFO] [stderr] Compiling byteorder v0.5.3 [INFO] [stderr] Compiling wasmparser v0.51.4 [INFO] [stderr] Compiling backtrace-sys v0.1.35 [INFO] [stderr] Compiling iced-x86 v1.1.0 [INFO] [stderr] Compiling indexmap v1.3.2 [INFO] [stderr] Compiling humantime v1.3.0 [INFO] [stderr] Compiling miniz_oxide v0.3.6 [INFO] [stderr] Compiling elf v0.0.10 [INFO] [stderr] Compiling itertools v0.9.0 [INFO] [stderr] Compiling gimli v0.20.0 [INFO] [stderr] Compiling quote v1.0.3 [INFO] [stderr] Compiling getrandom v0.1.14 [INFO] [stderr] Compiling dirs-sys v0.3.4 [INFO] [stderr] Compiling flate2 v1.0.14 [INFO] [stderr] Compiling atty v0.2.14 [INFO] [stderr] Compiling termion v1.5.5 [INFO] [stderr] Compiling memmap v0.7.0 [INFO] [stderr] Compiling backtrace v0.3.46 [INFO] [stderr] Compiling regex v1.3.6 [INFO] [stderr] Compiling dirs v2.0.2 [INFO] [stderr] Compiling rand_core v0.5.1 [INFO] [stderr] Compiling tui v0.9.1 [INFO] [stderr] Compiling object v0.18.0 [INFO] [stderr] Compiling rand_chacha v0.2.2 [INFO] [stderr] Compiling rand v0.7.3 [INFO] [stderr] Compiling os_type v2.2.0 [INFO] [stderr] Compiling env_logger v0.7.1 [INFO] [stderr] Compiling uuid v0.8.1 [INFO] [stderr] Compiling toml v0.5.6 [INFO] [stderr] Compiling serde_derive v1.0.106 [INFO] [stderr] Compiling rustyline v6.1.2 [INFO] [stderr] Compiling human-panic v1.0.3 [INFO] [stderr] Compiling rust-debugger v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel [INFO] [stdout] --> src/main.rs:2:1 [INFO] [stdout] | [INFO] [stdout] 2 | #![feature(str_strip)] [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 `rust-debugger` due to 2 previous errors [INFO] running `Command { std: "docker" "inspect" "891162544d435941c600d551c2f2f2be1eb28eeae8a35380aeda37b3429907b4", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "891162544d435941c600d551c2f2f2be1eb28eeae8a35380aeda37b3429907b4", kill_on_drop: false }` [INFO] [stdout] 891162544d435941c600d551c2f2f2be1eb28eeae8a35380aeda37b3429907b4