[INFO] fetching crate subgraph-matching 0.0.4...
[INFO] checking subgraph-matching-0.0.4 against beta-2021-10-15 for beta-1.56-3
[INFO] extracting crate subgraph-matching 0.0.4 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate subgraph-matching 0.0.4 on toolchain beta-2021-10-15
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-10-15" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate subgraph-matching 0.0.4
[INFO] finished tweaking crates.io crate subgraph-matching 0.0.4
[INFO] tweaked toml for crates.io crate subgraph-matching 0.0.4 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-10-15" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-10-15" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded fast-float v0.2.0
[INFO] [stderr]   Downloaded gdl v0.2.6
[INFO] [stderr]   Downloaded graph v0.1.5
[INFO] [stderr]   Downloaded trim-margin v0.1.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "+beta-2021-10-15" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d1762564fc8617ffbf58ef55f9405d3277027ca0770f970cdb4cbfadcb47345e
[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" "d1762564fc8617ffbf58ef55f9405d3277027ca0770f970cdb4cbfadcb47345e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d1762564fc8617ffbf58ef55f9405d3277027ca0770f970cdb4cbfadcb47345e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d1762564fc8617ffbf58ef55f9405d3277027ca0770f970cdb4cbfadcb47345e", kill_on_drop: false }`
[INFO] [stdout] d1762564fc8617ffbf58ef55f9405d3277027ca0770f970cdb4cbfadcb47345e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "+beta-2021-10-15" "check" "--frozen" "--all" "--all-targets" "--message-format=json", 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] b1ca75c85145e2fb6c064af843e263066e1fa5b0ac989f4dabd8524caa6d4087
[INFO] running `Command { std: "docker" "start" "-a" "b1ca75c85145e2fb6c064af843e263066e1fa5b0ac989f4dabd8524caa6d4087", kill_on_drop: false }`
[INFO] [stderr]     Checking byte-slice-cast v1.1.0
[INFO] [stderr]     Checking fast-float v0.2.0
[INFO] [stderr]     Checking trim-margin v0.1.0
[INFO] [stderr]     Checking arrayvec v0.4.12
[INFO] [stderr]     Checking page_size v0.4.2
[INFO] [stderr]     Checking linereader v0.4.0
[INFO] [stderr]     Checking memmap2 v0.3.1
[INFO] [stderr]     Checking atoi v0.4.0
[INFO] [stderr]     Checking plotters v0.3.1
[INFO] [stderr]    Compiling thiserror-impl v1.0.30
[INFO] [stderr]    Compiling delegate v0.6.1
[INFO] [stderr]     Checking csv v1.1.6
[INFO] [stderr]     Checking num-bigint v0.4.2
[INFO] [stderr]     Checking num-iter v0.1.42
[INFO] [stderr]     Checking num-format v0.4.0
[INFO] [stderr]     Checking criterion v0.3.5
[INFO] [stderr]     Checking num-rational v0.4.0
[INFO] [stderr]     Checking num v0.4.0
[INFO] [stderr]     Checking thiserror v1.0.30
[INFO] [stderr]     Checking gdl v0.2.6
[INFO] [stderr]     Checking graph v0.1.5
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/graph-0.1.5/src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(slice_partition_dedup)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/graph-0.1.5/src/lib.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(vec_spare_capacity)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/graph-0.1.5/src/lib.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![feature(maybe_uninit_write_slice)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/graph-0.1.5/src/lib.rs:4:1
[INFO] [stdout]   |
[INFO] [stdout] 4 | #![feature(maybe_uninit_slice)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/graph-0.1.5/src/lib.rs:5:1
[INFO] [stdout]   |
[INFO] [stdout] 5 | #![feature(step_trait)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/graph-0.1.5/src/lib.rs:6:1
[INFO] [stdout]   |
[INFO] [stdout] 6 | #![feature(new_uninit)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 6 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 `graph` due to 7 previous errors
[INFO] running `Command { std: "docker" "inspect" "b1ca75c85145e2fb6c064af843e263066e1fa5b0ac989f4dabd8524caa6d4087", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b1ca75c85145e2fb6c064af843e263066e1fa5b0ac989f4dabd8524caa6d4087", kill_on_drop: false }`
[INFO] [stdout] b1ca75c85145e2fb6c064af843e263066e1fa5b0ac989f4dabd8524caa6d4087
