[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 beta-2020-10-09 for beta-1.48-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsamwho%2Frust-debugger" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/samwho/rust-debugger on toolchain beta-2020-10-09
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-10-09" "read-manifest" "--manifest-path" "Cargo.toml", 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-7/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" "+beta-2020-10-09" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded rustyline v6.1.2
[INFO] [stderr]   Downloaded target-lexicon v0.10.0
[INFO] [stderr]   Downloaded gimli v0.20.0
[INFO] [stderr]   Downloaded object v0.18.0
[INFO] [stderr]   Downloaded elf v0.0.10
[INFO] [stderr]   Downloaded wasmparser v0.51.4
[INFO] [stderr]   Downloaded iced-x86 v1.1.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-10-09" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] e452aa8068d4eb15fbff52f934130726652a9e82e94aa3fb956a1c0778500173
[INFO] running `Command { std: "docker" "start" "-a" "e452aa8068d4eb15fbff52f934130726652a9e82e94aa3fb956a1c0778500173", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e452aa8068d4eb15fbff52f934130726652a9e82e94aa3fb956a1c0778500173", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e452aa8068d4eb15fbff52f934130726652a9e82e94aa3fb956a1c0778500173", kill_on_drop: false }`
[INFO] [stdout] e452aa8068d4eb15fbff52f934130726652a9e82e94aa3fb956a1c0778500173
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-10-09" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 229c18054d2d7c04acb57982394dd837497d7f1f10a831ab83e2364ea534835c
[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" "229c18054d2d7c04acb57982394dd837497d7f1f10a831ab83e2364ea534835c", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.68
[INFO] [stderr]    Compiling proc-macro2 v1.0.10
[INFO] [stderr]    Compiling serde v1.0.106
[INFO] [stderr]    Compiling syn v1.0.17
[INFO] [stderr]    Compiling regex-syntax v0.6.17
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling target-lexicon v0.10.0
[INFO] [stderr]    Compiling numtoa v0.1.0
[INFO] [stderr]    Compiling wasmparser v0.51.4
[INFO] [stderr]    Compiling stable_deref_trait v1.1.1
[INFO] [stderr]    Compiling fallible-iterator v0.2.0
[INFO] [stderr]    Compiling cassowary v0.3.0
[INFO] [stderr]    Compiling smallvec v1.3.0
[INFO] [stderr]    Compiling byteorder v0.5.3
[INFO] [stderr]    Compiling backtrace-sys v0.1.35
[INFO] [stderr]    Compiling miniz_oxide v0.3.6
[INFO] [stderr]    Compiling itertools v0.9.0
[INFO] [stderr]    Compiling elf v0.0.10
[INFO] [stderr]    Compiling iced-x86 v1.1.0
[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 nix v0.17.0
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling termion v1.5.5
[INFO] [stderr]    Compiling flate2 v1.0.14
[INFO] [stderr]    Compiling memmap v0.7.0
[INFO] [stderr]    Compiling backtrace v0.3.46
[INFO] [stderr]    Compiling dirs v2.0.2
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling regex v1.3.6
[INFO] [stderr]    Compiling tui v0.9.1
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling object v0.18.0
[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 serde_derive v1.0.106
[INFO] [stderr]    Compiling toml v0.5.6
[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 beta 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`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "229c18054d2d7c04acb57982394dd837497d7f1f10a831ab83e2364ea534835c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "229c18054d2d7c04acb57982394dd837497d7f1f10a831ab83e2364ea534835c", kill_on_drop: false }`
[INFO] [stdout] 229c18054d2d7c04acb57982394dd837497d7f1f10a831ab83e2364ea534835c
