[INFO] fetching crate tdn 0.2.0...
[INFO] checking tdn-0.2.0 against beta for pr-78714
[INFO] extracting crate tdn 0.2.0 into /workspace/builds/worker-10/source
[INFO] validating manifest of crates.io crate tdn 0.2.0 on toolchain beta
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate tdn 0.2.0
[INFO] finished tweaking crates.io crate tdn 0.2.0
[INFO] tweaked toml for crates.io crate tdn 0.2.0 written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] crate crates.io crate tdn 0.2.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0c82c6769f6027430af31f9d64026ff955d84d3cff354af5bb7bed0d3a72c30b
[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" "0c82c6769f6027430af31f9d64026ff955d84d3cff354af5bb7bed0d3a72c30b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0c82c6769f6027430af31f9d64026ff955d84d3cff354af5bb7bed0d3a72c30b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0c82c6769f6027430af31f9d64026ff955d84d3cff354af5bb7bed0d3a72c30b", kill_on_drop: false }`
[INFO] [stdout] 0c82c6769f6027430af31f9d64026ff955d84d3cff354af5bb7bed0d3a72c30b
[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=forbid" "-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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3000f364f2347e83971161c0fc03cfb10e8c33692de9f259da5cce08ddb29189
[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" "3000f364f2347e83971161c0fc03cfb10e8c33692de9f259da5cce08ddb29189", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling syn v1.0.41
[INFO] [stderr]    Compiling serde v1.0.116
[INFO] [stderr]     Checking bit-vec v0.6.2
[INFO] [stderr]     Checking postcard-cobs v0.1.5-pre
[INFO] [stderr]     Checking async-semaphore v1.1.0
[INFO] [stderr]     Checking ed25519 v1.0.2
[INFO] [stderr]     Checking async-rwlock v1.1.0
[INFO] [stderr]     Checking async-barrier v1.0.1
[INFO] [stderr]     Checking parking_lot_core v0.8.0
[INFO] [stderr]     Checking dirs-sys v0.3.5
[INFO] [stderr]     Checking fs2 v0.4.3
[INFO] [stderr]     Checking futures-lite v1.4.0
[INFO] [stderr]     Checking polling v1.0.2
[INFO] [stderr]     Checking signal-hook v0.1.16
[INFO] [stderr]     Checking sha2 v0.9.1
[INFO] [stderr]     Checking aes-soft v0.5.0
[INFO] [stderr]     Checking block-modes v0.6.1
[INFO] [stderr]     Checking sha-1 v0.8.2
[INFO] [stderr]     Checking sha3 v0.8.2
[INFO] [stderr]     Checking async-lock v2.1.3
[INFO] [stderr]     Checking dirs v2.0.2
[INFO] [stderr]     Checking tungstenite v0.10.1
[INFO] [stderr]     Checking parking_lot v0.11.0
[INFO] [stderr]     Checking sled v0.34.4
[INFO] [stderr]     Checking blocking v1.0.0
[INFO] [stderr]     Checking async-io v1.1.1
[INFO] [stderr]     Checking async-executor v1.1.1
[INFO] [stderr]     Checking async-fs v1.3.0
[INFO] [stderr]     Checking async-process v1.0.0
[INFO] [stderr]     Checking async-net v1.3.0
[INFO] [stderr]     Checking smol v1.0.1
[INFO] [stderr]    Compiling synstructure v0.12.4
[INFO] [stderr]    Compiling serde_derive v1.0.116
[INFO] [stderr]    Compiling pin-project-internal v0.4.23
[INFO] [stderr]    Compiling futures-macro v0.3.5
[INFO] [stderr]    Compiling zeroize_derive v1.0.1
[INFO] [stderr]     Checking zeroize v1.1.1
[INFO] [stderr]     Checking curve25519-dalek v3.0.0
[INFO] [stderr]     Checking pin-project v0.4.23
[INFO] [stderr]     Checking futures-util v0.3.5
[INFO] [stderr]     Checking x25519-dalek v1.1.0
[INFO] [stderr]     Checking futures-executor v0.3.5
[INFO] [stderr]     Checking async-tungstenite v0.4.2
[INFO] [stderr]     Checking futures v0.3.5
[INFO] [stderr]     Checking chamomile_types v0.2.0
[INFO] [stderr]     Checking bincode v1.3.1
[INFO] [stderr]     Checking toml v0.5.6
[INFO] [stderr]     Checking ed25519-dalek v1.0.0
[INFO] [stderr]     Checking serde_json v1.0.57
[INFO] [stderr]     Checking postcard v0.5.1
[INFO] [stderr]     Checking rckad v0.0.6
[INFO] [stderr]     Checking tdn_types v0.2.0
[INFO] [stderr]     Checking chamomile v0.2.0
[INFO] [stderr]     Checking tdn 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:12:1
[INFO] [stdout]    |
[INFO] [stdout] 12 | #![feature(associated_type_defaults)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]   --> src/lib.rs:12:1
[INFO] [stdout]    |
[INFO] [stdout] 12 | #![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`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[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: build failed
[INFO] running `Command { std: "docker" "inspect" "3000f364f2347e83971161c0fc03cfb10e8c33692de9f259da5cce08ddb29189", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3000f364f2347e83971161c0fc03cfb10e8c33692de9f259da5cce08ddb29189", kill_on_drop: false }`
[INFO] [stdout] 3000f364f2347e83971161c0fc03cfb10e8c33692de9f259da5cce08ddb29189