[INFO] fetching crate pgp 0.7.1...
[INFO] checking pgp-0.7.1 against beta for pr-78714
[INFO] extracting crate pgp 0.7.1 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate pgp 0.7.1 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 pgp 0.7.1
[INFO] finished tweaking crates.io crate pgp 0.7.1
[INFO] tweaked toml for crates.io crate pgp 0.7.1 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "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" "fetch" "--locked" "--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-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "metadata" "--no-deps" "--format-version=1", 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] 0b7de0f071f7c3fc1ea72136ec3161b6fdcc84c0d78c99cc3885d4ce828953f8
[INFO] running `Command { std: "docker" "start" "-a" "0b7de0f071f7c3fc1ea72136ec3161b6fdcc84c0d78c99cc3885d4ce828953f8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0b7de0f071f7c3fc1ea72136ec3161b6fdcc84c0d78c99cc3885d4ce828953f8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0b7de0f071f7c3fc1ea72136ec3161b6fdcc84c0d78c99cc3885d4ce828953f8", kill_on_drop: false }`
[INFO] [stdout] 0b7de0f071f7c3fc1ea72136ec3161b6fdcc84c0d78c99cc3885d4ce828953f8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "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] c855bb8916d6065af5f97f061dd9cfd199ae7451fe34057e5e9df2aee55bd933
[INFO] running `Command { std: "docker" "start" "-a" "c855bb8916d6065af5f97f061dd9cfd199ae7451fe34057e5e9df2aee55bd933", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling syn v1.0.48
[INFO] [stderr]     Checking opaque-debug v0.3.0
[INFO] [stderr]     Checking block-padding v0.2.1
[INFO] [stderr]     Checking spin v0.5.2
[INFO] [stderr]     Checking subtle v2.3.0
[INFO] [stderr]    Compiling libm v0.2.1
[INFO] [stderr]     Checking cpuid-bool v0.1.2
[INFO] [stderr]     Checking signature v1.2.2
[INFO] [stderr]     Checking smallvec v1.4.2
[INFO] [stderr]    Compiling crc24 v0.1.6
[INFO] [stderr]     Checking once_cell v1.5.2
[INFO] [stderr]     Checking safemem v0.3.3
[INFO] [stderr]     Checking keccak v0.1.0
[INFO] [stderr]     Checking circular v0.3.0
[INFO] [stderr]     Checking difference v2.0.0
[INFO] [stderr]     Checking hex v0.4.2
[INFO] [stderr]     Checking glob v0.3.0
[INFO] [stderr]    Compiling hex-literal v0.3.1
[INFO] [stderr]     Checking try_from v0.3.2
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling clear_on_drop v0.2.4
[INFO] [stderr]    Compiling num-bigint-dig v0.6.0
[INFO] [stderr]     Checking humantime v1.3.0
[INFO] [stderr]     Checking ed25519 v1.0.3
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking pretty_assertions v0.6.1
[INFO] [stderr]     Checking buf_redux v0.8.4
[INFO] [stderr]     Checking num-traits v0.2.14
[INFO] [stderr]     Checking nom v4.2.3
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]     Checking block-cipher v0.8.0
[INFO] [stderr]     Checking block-buffer v0.9.0
[INFO] [stderr]     Checking flate2 v1.0.19
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking sha2 v0.9.2
[INFO] [stderr]     Checking ripemd160 v0.9.1
[INFO] [stderr]     Checking sha3 v0.9.1
[INFO] [stderr]     Checking sha-1 v0.9.2
[INFO] [stderr]     Checking md-5 v0.9.1
[INFO] [stderr]     Checking stream-cipher v0.7.1
[INFO] [stderr]     Checking aes-soft v0.5.0
[INFO] [stderr]     Checking twofish v0.4.0
[INFO] [stderr]     Checking des v0.5.0
[INFO] [stderr]     Checking block-modes v0.6.1
[INFO] [stderr]     Checking cast5 v0.8.0
[INFO] [stderr]     Checking blowfish v0.6.0
[INFO] [stderr]     Checking regex v1.4.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking cfb-mode v0.5.0
[INFO] [stderr]     Checking aes v0.5.0
[INFO] [stderr]     Checking num-iter v0.1.42
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking num-bigint v0.2.6
[INFO] [stderr]     Checking pem v0.8.1
[INFO] [stderr]     Checking env_logger v0.7.1
[INFO] [stderr]     Checking pretty_env_logger v0.4.0
[INFO] [stderr]     Checking simple_asn1 v0.4.1
[INFO] [stderr]    Compiling synstructure v0.12.4
[INFO] [stderr]    Compiling darling_core v0.10.2
[INFO] [stderr]    Compiling zeroize_derive v1.0.1
[INFO] [stderr]    Compiling serde_derive v1.0.117
[INFO] [stderr]    Compiling thiserror-impl v1.0.22
[INFO] [stderr]    Compiling num-derive v0.3.3
[INFO] [stderr]    Compiling darling_macro v0.10.2
[INFO] [stderr]     Checking zeroize v1.1.1
[INFO] [stderr]     Checking curve25519-dalek v3.0.0
[INFO] [stderr]     Checking thiserror v1.0.22
[INFO] [stderr]     Checking x25519-dalek v1.1.0
[INFO] [stderr]    Compiling darling v0.10.2
[INFO] [stderr]    Compiling derive_builder_core v0.9.0
[INFO] [stderr]    Compiling derive_builder v0.9.0
[INFO] [stderr]     Checking serde v1.0.117
[INFO] [stderr]     Checking ed25519-dalek v1.0.1
[INFO] [stderr]     Checking serde_json v1.0.59
[INFO] [stderr]     Checking rsa v0.3.0
[INFO] [stderr]     Checking pgp v0.7.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> benches/pgp_benches.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(test)]
[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 `pgp`
[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] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "c855bb8916d6065af5f97f061dd9cfd199ae7451fe34057e5e9df2aee55bd933", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c855bb8916d6065af5f97f061dd9cfd199ae7451fe34057e5e9df2aee55bd933", kill_on_drop: false }`
[INFO] [stdout] c855bb8916d6065af5f97f061dd9cfd199ae7451fe34057e5e9df2aee55bd933