[INFO] fetching crate tdn_permission 0.2.0...
[INFO] checking tdn_permission-0.2.0 against 1.55.0 for beta-1.56-3
[INFO] extracting crate tdn_permission 0.2.0 into /workspace/builds/worker-45/source
[INFO] validating manifest of crates.io crate tdn_permission 0.2.0 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] 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-45/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" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] [stderr]   Downloaded parking v2.0.0
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[INFO] [stderr]   Downloaded tdn v0.2.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-45/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-45/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] a6a3d187ad9385464f8dc918af4969219f151061b88ba80e1aa1297d2815a875
[INFO] running `Command { std: "docker" "start" "-a" "a6a3d187ad9385464f8dc918af4969219f151061b88ba80e1aa1297d2815a875", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a6a3d187ad9385464f8dc918af4969219f151061b88ba80e1aa1297d2815a875", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a6a3d187ad9385464f8dc918af4969219f151061b88ba80e1aa1297d2815a875", kill_on_drop: false }`
[INFO] [stdout] a6a3d187ad9385464f8dc918af4969219f151061b88ba80e1aa1297d2815a875
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-45/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-45/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] 5b79b061c9524b696688d3d74510425c83ba20f668e8b084ff8b5d50d5440116
[INFO] running `Command { std: "docker" "start" "-a" "5b79b061c9524b696688d3d74510425c83ba20f668e8b084ff8b5d50d5440116", 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 libc v0.2.77
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling syn v1.0.41
[INFO] [stderr]    Compiling typenum v1.12.0
[INFO] [stderr]     Checking futures-core v0.3.5
[INFO] [stderr]    Compiling version_check v0.9.2
[INFO] [stderr]    Compiling byteorder v1.3.2
[INFO] [stderr]     Checking event-listener v2.4.0
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]     Checking once_cell v1.4.1
[INFO] [stderr]     Checking futures-io v0.3.5
[INFO] [stderr]     Checking cache-padded v1.1.1
[INFO] [stderr]    Compiling serde v1.0.104
[INFO] [stderr]    Compiling getrandom v0.1.15
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]     Checking parking v2.0.0
[INFO] [stderr]     Checking waker-fn v1.1.0
[INFO] [stderr]     Checking fastrand v1.3.5
[INFO] [stderr]     Checking pin-project-lite v0.1.7
[INFO] [stderr]    Compiling pin-project-internal v0.4.23
[INFO] [stderr]    Compiling proc-macro-nested v0.1.6
[INFO] [stderr]     Checking futures-sink v0.3.5
[INFO] [stderr]    Compiling proc-macro-hack v0.5.18
[INFO] [stderr]     Checking itoa v0.4.4
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[INFO] [stderr]    Compiling httparse v1.3.4
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[INFO] [stderr]     Checking lock_api v0.4.1
[INFO] [stderr]     Checking ed25519 v1.0.2
[INFO] [stderr]     Checking concurrent-queue v1.2.2
[INFO] [stderr]     Checking futures-channel v0.3.5
[INFO] [stderr]     Checking futures-task v0.3.5
[INFO] [stderr]     Checking unicode-normalization v0.1.13
[INFO] [stderr]     Checking async-channel v1.4.2
[INFO] [stderr]     Checking async-mutex v1.3.0
[INFO] [stderr]     Checking async-semaphore v1.1.0
[INFO] [stderr]     Checking input_buffer v0.3.1
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[INFO] [stderr]    Compiling generic-array v0.14.4
[INFO] [stderr]     Checking async-barrier v1.0.1
[INFO] [stderr]     Checking async-rwlock v1.1.0
[INFO] [stderr]     Checking crossbeam-epoch v0.8.2
[INFO] [stderr]     Checking polling v1.0.2
[INFO] [stderr]     Checking signal-hook-registry v1.2.1
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[INFO] [stderr]     Checking parking_lot_core v0.8.0
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[INFO] [stderr]    Compiling quote v1.0.2
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[INFO] [stderr]     Checking dirs v2.0.2
[INFO] [stderr]     Checking signal-hook v0.1.16
[INFO] [stderr]     Checking parking_lot v0.11.0
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking idna v0.2.0
[INFO] [stderr]     Checking generic-array v0.12.3
[INFO] [stderr]     Checking async-io v1.1.1
[INFO] [stderr]     Checking blocking v1.0.0
[INFO] [stderr]     Checking async-executor v1.1.1
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking sled v0.34.4
[INFO] [stderr]     Checking url v2.1.1
[INFO] [stderr]     Checking async-fs v1.3.0
[INFO] [stderr]     Checking digest v0.8.1
[INFO] [stderr]     Checking block-buffer v0.7.3
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking async-process v1.0.0
[INFO] [stderr]     Checking async-net v1.3.0
[INFO] [stderr]     Checking digest v0.9.0
[INFO] [stderr]     Checking block-buffer v0.9.0
[INFO] [stderr]     Checking block-cipher v0.8.0
[INFO] [stderr]     Checking sha3 v0.8.2
[INFO] [stderr]     Checking sha-1 v0.8.2
[INFO] [stderr]     Checking block-modes v0.6.1
[INFO] [stderr]     Checking aes-soft v0.5.0
[INFO] [stderr]     Checking sha3 v0.9.1
[INFO] [stderr]     Checking sha2 v0.9.1
[INFO] [stderr]     Checking smol v1.0.1
[INFO] [stderr]     Checking tungstenite v0.10.1
[INFO] [stderr]    Compiling synstructure v0.12.3
[INFO] [stderr]    Compiling serde_derive v1.0.104
[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 x25519-dalek v1.1.0
[INFO] [stderr]     Checking pin-project v0.4.23
[INFO] [stderr]     Checking futures-util v0.3.5
[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 serde_json v1.0.44
[INFO] [stderr]     Checking bincode v1.3.1
[INFO] [stderr]     Checking postcard v0.5.1
[INFO] [stderr]     Checking ed25519-dalek v1.0.0
[INFO] [stderr]     Checking toml v0.5.6
[INFO] [stderr]     Checking rckad v0.0.6
[INFO] [stderr]     Checking chamomile v0.2.0
[INFO] [stderr]     Checking tdn_types v0.2.0
[INFO] [stderr]     Checking 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` due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "5b79b061c9524b696688d3d74510425c83ba20f668e8b084ff8b5d50d5440116", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5b79b061c9524b696688d3d74510425c83ba20f668e8b084ff8b5d50d5440116", kill_on_drop: false }`
[INFO] [stdout] 5b79b061c9524b696688d3d74510425c83ba20f668e8b084ff8b5d50d5440116
