[INFO] fetching crate tdn_permission 0.2.0...
[INFO] testing tdn_permission-0.2.0 against 1.54.0 for beta-1.55-1
[INFO] extracting crate tdn_permission 0.2.0 into /workspace/builds/worker-28/source
[INFO] validating manifest of crates.io crate tdn_permission 0.2.0 on toolchain 1.54.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "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-28/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" "+1.54.0" "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-28/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a8b3fec7aaacafe4d833431fe15884ffb60768cf60649a4a96dabb7f190d7ecd
[INFO] running `Command { std: "docker" "start" "-a" "a8b3fec7aaacafe4d833431fe15884ffb60768cf60649a4a96dabb7f190d7ecd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a8b3fec7aaacafe4d833431fe15884ffb60768cf60649a4a96dabb7f190d7ecd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a8b3fec7aaacafe4d833431fe15884ffb60768cf60649a4a96dabb7f190d7ecd", kill_on_drop: false }`
[INFO] [stdout] a8b3fec7aaacafe4d833431fe15884ffb60768cf60649a4a96dabb7f190d7ecd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8ca50af50fa0ebb11fbddee43b1054f30f8208c256d3322d8f0b563cef8cbd5d
[INFO] running `Command { std: "docker" "start" "-a" "8ca50af50fa0ebb11fbddee43b1054f30f8208c256d3322d8f0b563cef8cbd5d", 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 unicode-xid v0.2.0
[INFO] [stderr]    Compiling syn v1.0.41
[INFO] [stderr]    Compiling typenum v1.12.0
[INFO] [stderr]    Compiling version_check v0.9.2
[INFO] [stderr]    Compiling serde v1.0.104
[INFO] [stderr]    Compiling libc v0.2.77
[INFO] [stderr]    Compiling ryu v1.0.2
[INFO] [stderr]    Compiling cache-padded v1.1.1
[INFO] [stderr]    Compiling block-padding v0.2.1
[INFO] [stderr]    Compiling futures-core v0.3.5
[INFO] [stderr]    Compiling event-listener v2.4.0
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling opaque-debug v0.3.0
[INFO] [stderr]    Compiling itoa v0.4.4
[INFO] [stderr]    Compiling keccak v0.1.0
[INFO] [stderr]    Compiling postcard-cobs v0.1.5-pre
[INFO] [stderr]    Compiling concurrent-queue v1.2.2
[INFO] [stderr]    Compiling generic-array v0.14.4
[INFO] [stderr]    Compiling async-channel v1.4.2
[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 digest v0.9.0
[INFO] [stderr]    Compiling block-buffer v0.9.0
[INFO] [stderr]    Compiling sha3 v0.9.1
[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 stable 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`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "8ca50af50fa0ebb11fbddee43b1054f30f8208c256d3322d8f0b563cef8cbd5d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8ca50af50fa0ebb11fbddee43b1054f30f8208c256d3322d8f0b563cef8cbd5d", kill_on_drop: false }`
[INFO] [stdout] 8ca50af50fa0ebb11fbddee43b1054f30f8208c256d3322d8f0b563cef8cbd5d
