[INFO] fetching crate hnsw 0.6.1...
[INFO] checking hnsw-0.6.1 against beta-2020-07-24 for pr-75494-beta
[INFO] extracting crate hnsw 0.6.1 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate hnsw 0.6.1 on toolchain beta-2020-07-24
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-1/source/.cargo/config
[INFO] started tweaking crates.io crate hnsw 0.6.1
[INFO] finished tweaking crates.io crate hnsw 0.6.1
[INFO] tweaked toml for crates.io crate hnsw 0.6.1 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate crates.io crate hnsw 0.6.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "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] 964e0aae0b748ed2b11e1f5226e6bedf929e7a87d350d45b3332498be9b47f02
[INFO] running `Command { std: "docker" "start" "-a" "964e0aae0b748ed2b11e1f5226e6bedf929e7a87d350d45b3332498be9b47f02", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "964e0aae0b748ed2b11e1f5226e6bedf929e7a87d350d45b3332498be9b47f02", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "964e0aae0b748ed2b11e1f5226e6bedf929e7a87d350d45b3332498be9b47f02", kill_on_drop: false }`
[INFO] [stdout] 964e0aae0b748ed2b11e1f5226e6bedf929e7a87d350d45b3332498be9b47f02
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "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] 3cf2bbfe2f5ab08e3e7fae0b5c68aa76373b6ca5d8614f3dd2555069c31322bb
[INFO] running `Command { std: "docker" "start" "-a" "3cf2bbfe2f5ab08e3e7fae0b5c68aa76373b6ca5d8614f3dd2555069c31322bb", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.67
[INFO] [stderr]    Compiling autocfg v1.0.0
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]    Compiling proc-macro2 v1.0.9
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling syn v1.0.16
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling maybe-uninit v2.0.0
[INFO] [stderr]    Compiling serde v1.0.104
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling ryu v1.0.2
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]     Checking ppv-lite86 v0.2.6
[INFO] [stderr]     Checking unicode-width v0.1.7
[INFO] [stderr]    Compiling packed_simd v0.3.3
[INFO] [stderr]     Checking itoa v0.4.5
[INFO] [stderr]    Compiling typenum v1.11.2
[INFO] [stderr]    Compiling rayon-core v1.7.0
[INFO] [stderr]     Checking either v1.5.3
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]     Checking rand_core v0.4.2
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking vec_map v0.8.1
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]    Compiling unicode-segmentation v1.6.0
[INFO] [stderr]    Compiling libm v0.2.1
[INFO] [stderr]     Checking quick-error v1.2.3
[INFO] [stderr]     Checking same-file v1.0.6
[INFO] [stderr]     Checking rustc-hash v1.1.0
[INFO] [stderr]     Checking hamming-heap v0.4.1
[INFO] [stderr]     Checking float-ord v0.2.0
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]     Checking itertools v0.8.2
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]     Checking c2-chacha v0.2.3
[INFO] [stderr]     Checking humantime v1.3.0
[INFO] [stderr]     Checking walkdir v2.3.1
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]     Checking easybench v0.1.4
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]     Checking csv-core v0.1.10
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking num_cpus v1.12.0
[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]    Compiling quote v1.0.3
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling crossbeam-epoch v0.8.2
[INFO] [stderr]    Compiling num-traits v0.2.11
[INFO] [stderr]    Compiling hashbrown v0.7.0
[INFO] [stderr]     Checking rand_chacha v0.2.1
[INFO] [stderr]     Checking rand_pcg v0.2.1
[INFO] [stderr]     Checking regex-automata v0.1.8
[INFO] [stderr]     Checking rand_xoshiro v0.1.0
[INFO] [stderr]     Checking gnuplot v0.0.34
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]    Compiling memoffset v0.5.3
[INFO] [stderr]    Compiling cast v0.2.3
[INFO] [stderr]     Checking generic-array v0.13.2
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/packed_simd-0.3.3/src/lib.rs:202:1
[INFO] [stdout]     |
[INFO] [stdout] 202 | / #![feature(
[INFO] [stdout] 203 | |     repr_simd,
[INFO] [stdout] 204 | |     const_fn,
[INFO] [stdout] 205 | |     platform_intrinsics,
[INFO] [stdout] ...   |
[INFO] [stdout] 215 | |     custom_inner_attributes
[INFO] [stdout] 216 | | )]
[INFO] [stdout]     | |__^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking crossbeam-queue v0.2.1
[INFO] [stderr]     Checking criterion-plot v0.3.1
[INFO] [stderr]     Checking crossbeam-deque v0.7.3
[INFO] [stderr]     Checking rand_distr v0.2.2
[INFO] [stderr]     Checking rayon v1.3.0
[INFO] [stderr]     Checking bstr v0.2.11
[INFO] [stderr]     Checking serde_json v1.0.48
[INFO] [stderr]    Compiling structopt-derive v0.2.18
[INFO] [stderr]     Checking csv v1.1.3
[INFO] [stderr]     Checking tinytemplate v1.0.3
[INFO] [stderr]    Compiling proc-macro-hack v0.5.11
[INFO] [stderr]    Compiling serde_derive v1.0.104
[INFO] [stderr]     Checking structopt v0.2.18
[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 `packed_simd`.
[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" "3cf2bbfe2f5ab08e3e7fae0b5c68aa76373b6ca5d8614f3dd2555069c31322bb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3cf2bbfe2f5ab08e3e7fae0b5c68aa76373b6ca5d8614f3dd2555069c31322bb", kill_on_drop: false }`
[INFO] [stdout] 3cf2bbfe2f5ab08e3e7fae0b5c68aa76373b6ca5d8614f3dd2555069c31322bb
