[INFO] cloning repository https://github.com/davidhollis/cardboard-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/davidhollis/cardboard-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdavidhollis%2Fcardboard-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdavidhollis%2Fcardboard-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a07d73d0ff0dffb17f8bb290be5a3537699af06d
[INFO] checking davidhollis/cardboard-rs against 1.55.0 for beta-1.56-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdavidhollis%2Fcardboard-rs" "/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/davidhollis/cardboard-rs 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] removed /workspace/builds/worker-10/source/rust-toolchain.toml
[INFO] started tweaking git repo https://github.com/davidhollis/cardboard-rs
[INFO] finished tweaking git repo https://github.com/davidhollis/cardboard-rs
[INFO] tweaked toml for git repo https://github.com/davidhollis/cardboard-rs written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] crate git repo https://github.com/davidhollis/cardboard-rs 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]  Downloading crates ...
[INFO] [stderr]   Downloaded schemafy_lib v0.5.2
[INFO] [stderr]   Downloaded yansi-term v0.1.2
[INFO] [stderr]   Downloaded gazebo_derive v0.4.1
[INFO] [stderr]   Downloaded schemafy v0.5.2
[INFO] [stderr]   Downloaded gazebo v0.4.1
[INFO] [stderr]   Downloaded gazebo v0.2.2
[INFO] [stderr]   Downloaded lalrpop v0.19.6
[INFO] [stderr]   Downloaded annotate-snippets v0.9.1
[INFO] [stderr]   Downloaded lalrpop-util v0.19.6
[INFO] [stderr]   Downloaded debugserver-types v0.5.0
[INFO] [stderr]   Downloaded rustyline v7.1.0
[INFO] [stderr]   Downloaded utf8parse v0.2.0
[INFO] [stderr]   Downloaded starlark_derive v0.5.0
[INFO] [stderr]   Downloaded smawk v0.3.1
[INFO] [stderr]   Downloaded schemafy_core v0.5.2
[INFO] [stderr]   Downloaded gazebo_derive v0.1.1
[INFO] [stderr]   Downloaded starlark v0.5.0
[INFO] [stderr]   Downloaded unicode-linebreak v0.1.2
[INFO] [stderr]   Downloaded ena v0.14.0
[INFO] [stderr]   Downloaded ascii-canvas v3.0.0
[INFO] [stderr]   Downloaded lsp-server v0.5.2
[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] fc276c4940ff74c75a94b782acc7b5dea7728df4c54faf16089d2fce9e861787
[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" "fc276c4940ff74c75a94b782acc7b5dea7728df4c54faf16089d2fce9e861787", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fc276c4940ff74c75a94b782acc7b5dea7728df4c54faf16089d2fce9e861787", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fc276c4940ff74c75a94b782acc7b5dea7728df4c54faf16089d2fce9e861787", kill_on_drop: false }`
[INFO] [stdout] fc276c4940ff74c75a94b782acc7b5dea7728df4c54faf16089d2fce9e861787
[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" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8cf57bb0f4186ffcb3be95f9ddb1ff80891c8c10c71af89f3728fcd1522a117a
[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" "8cf57bb0f4186ffcb3be95f9ddb1ff80891c8c10c71af89f3728fcd1522a117a", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.77
[INFO] [stderr]    Compiling once_cell v1.8.0
[INFO] [stderr]    Compiling pico-args v0.4.2
[INFO] [stderr]    Compiling beef v0.4.4
[INFO] [stderr]     Checking yansi-term v0.1.2
[INFO] [stderr]     Checking smawk v0.3.1
[INFO] [stderr]     Checking bumpalo v3.7.1
[INFO] [stderr]    Compiling itertools v0.10.1
[INFO] [stderr]    Compiling string_cache v0.8.1
[INFO] [stderr]    Compiling getrandom v0.2.3
[INFO] [stderr]    Compiling dirs-sys-next v0.1.2
[INFO] [stderr]    Compiling ena v0.14.0
[INFO] [stderr]     Checking nix v0.19.1
[INFO] [stderr]     Checking fs2 v0.4.3
[INFO] [stderr]     Checking ahash v0.7.4
[INFO] [stderr]    Compiling lalrpop-util v0.19.6
[INFO] [stderr]    Compiling Inflector v0.11.4
[INFO] [stderr]    Compiling unicode-linebreak v0.1.2
[INFO] [stderr]     Checking dirs-next v2.0.0
[INFO] [stderr]     Checking annotate-snippets v0.9.1
[INFO] [stderr]     Checking hashbrown v0.11.2
[INFO] [stderr]    Compiling term v0.7.0
[INFO] [stderr]    Compiling ascii-canvas v3.0.0
[INFO] [stderr]     Checking rustyline v7.1.0
[INFO] [stderr]     Checking textwrap v0.14.2
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling serde_derive v1.0.130
[INFO] [stderr]    Compiling serde_repr v0.1.7
[INFO] [stderr]    Compiling gazebo_derive v0.1.1
[INFO] [stderr]    Compiling logos-derive v0.11.5
[INFO] [stderr]    Compiling structopt-derive v0.4.16
[INFO] [stderr]    Compiling gazebo_derive v0.4.1
[INFO] [stderr]    Compiling thiserror-impl v1.0.29
[INFO] [stderr]    Compiling derive_more v0.99.16
[INFO] [stderr]    Compiling derivative v2.2.0
[INFO] [stderr]    Compiling gazebo v0.2.2
[INFO] [stderr]     Checking gazebo v0.4.1
[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/gazebo-0.4.1/src/lib.rs:10:49
[INFO] [stdout]    |
[INFO] [stdout] 10 | #![cfg_attr(feature = "str_pattern_extensions", feature(pattern))]
[INFO] [stdout]    |                                                 ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[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/gazebo-0.4.1/src/lib.rs:11:49
[INFO] [stdout]    |
[INFO] [stdout] 11 | #![cfg_attr(feature = "str_pattern_extensions", feature(associated_type_bounds))]
[INFO] [stdout]    |                                                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[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/gazebo-0.2.2/src/lib.rs:10:49
[INFO] [stdout]    |
[INFO] [stdout] 10 | #![cfg_attr(feature = "str_pattern_extensions", feature(pattern))]
[INFO] [stdout]    |                                                 ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[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/gazebo-0.2.2/src/lib.rs:11:49
[INFO] [stdout]    |
[INFO] [stdout] 11 | #![cfg_attr(feature = "str_pattern_extensions", feature(associated_type_bounds))]
[INFO] [stdout]    |                                                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 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 `gazebo` due to 3 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "8cf57bb0f4186ffcb3be95f9ddb1ff80891c8c10c71af89f3728fcd1522a117a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8cf57bb0f4186ffcb3be95f9ddb1ff80891c8c10c71af89f3728fcd1522a117a", kill_on_drop: false }`
[INFO] [stdout] 8cf57bb0f4186ffcb3be95f9ddb1ff80891c8c10c71af89f3728fcd1522a117a
