[INFO] fetching crate tdn_permission 0.2.0...
[INFO] testing tdn_permission-0.2.0 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate tdn_permission 0.2.0 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate tdn_permission 0.2.0 on toolchain beta-2021-09-08
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate tdn_permission 0.2.0
[INFO] finished tweaking crates.io crate tdn_permission 0.2.0
[INFO] tweaked toml for crates.io crate tdn_permission 0.2.0 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate crates.io crate tdn_permission 0.2.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1835400a041a6f8fee315062643c982e41534b38a1c094d9733affeac1686912
[INFO] running `Command { std: "docker" "start" "-a" "1835400a041a6f8fee315062643c982e41534b38a1c094d9733affeac1686912", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1835400a041a6f8fee315062643c982e41534b38a1c094d9733affeac1686912", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1835400a041a6f8fee315062643c982e41534b38a1c094d9733affeac1686912", kill_on_drop: false }`
[INFO] [stdout] 1835400a041a6f8fee315062643c982e41534b38a1c094d9733affeac1686912
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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-2021-09-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bae0acd819faec773445243c8f94cb48436d2e6a5bb81ff8b63fde40287afc31
[INFO] running `Command { std: "docker" "start" "-a" "bae0acd819faec773445243c8f94cb48436d2e6a5bb81ff8b63fde40287afc31", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling proc-macro2 v1.0.21
[INFO] [stderr]    Compiling syn v1.0.41
[INFO] [stderr]    Compiling serde v1.0.104
[INFO] [stderr]    Compiling libc v0.2.77
[INFO] [stderr]    Compiling event-listener v2.4.0
[INFO] [stderr]    Compiling futures-core v0.3.5
[INFO] [stderr]    Compiling block-padding v0.2.1
[INFO] [stderr]    Compiling keccak v0.1.0
[INFO] [stderr]    Compiling postcard-cobs v0.1.5-pre
[INFO] [stderr]    Compiling digest v0.9.0
[INFO] [stderr]    Compiling block-buffer v0.9.0
[INFO] [stderr]    Compiling async-channel v1.4.2
[INFO] [stderr]    Compiling sha3 v0.9.1
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]    Compiling dirs-sys v0.3.4
[INFO] [stderr]    Compiling dirs v2.0.2
[INFO] [stderr]    Compiling serde_derive v1.0.104
[INFO] [stderr]    Compiling chamomile_types v0.2.0
[INFO] [stderr]    Compiling serde_json v1.0.44
[INFO] [stderr]    Compiling postcard v0.5.1
[INFO] [stderr]    Compiling tdn_types v0.2.0
[INFO] [stderr]    Compiling tdn_permission v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(associated_type_defaults)]
[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 `tdn_permission` due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "bae0acd819faec773445243c8f94cb48436d2e6a5bb81ff8b63fde40287afc31", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bae0acd819faec773445243c8f94cb48436d2e6a5bb81ff8b63fde40287afc31", kill_on_drop: false }`
[INFO] [stdout] bae0acd819faec773445243c8f94cb48436d2e6a5bb81ff8b63fde40287afc31