[INFO] fetching crate noria-mir 0.6.0...
[INFO] documenting noria-mir-0.6.0 against beta-2021-08-01 for beta-1.55-rustdoc-1
[INFO] extracting crate noria-mir 0.6.0 into /workspace/builds/worker-94/source
[INFO] validating manifest of crates.io crate noria-mir 0.6.0 on toolchain beta-2021-08-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate noria-mir 0.6.0
[INFO] finished tweaking crates.io crate noria-mir 0.6.0
[INFO] tweaked toml for crates.io crate noria-mir 0.6.0 written to /workspace/builds/worker-94/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "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-2021-08-01" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded hashbag v0.1.3
[INFO] [stderr]   Downloaded left-right v0.11.4
[INFO] [stderr]   Downloaded evmap v11.0.0-alpha.7
[INFO] [stderr]   Downloaded arccstr v1.3.1
[INFO] [stderr]   Downloaded noria v0.6.1
[INFO] [stderr]   Downloaded zookeeper v0.5.10
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-94/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-94/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" "+beta-2021-08-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5f6c812252729abb548c7de925a81b885563bc2b37159751f6399a2cf399915c
[INFO] running `Command { std: "docker" "start" "-a" "5f6c812252729abb548c7de925a81b885563bc2b37159751f6399a2cf399915c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5f6c812252729abb548c7de925a81b885563bc2b37159751f6399a2cf399915c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5f6c812252729abb548c7de925a81b885563bc2b37159751f6399a2cf399915c", kill_on_drop: false }`
[INFO] [stdout] 5f6c812252729abb548c7de925a81b885563bc2b37159751f6399a2cf399915c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-94/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-94/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" "RUSTDOCFLAGS=--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" "+beta-2021-08-01" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 63cebc15f05808c550e6ca32bcfaa987a2dbcd03c2234577ae05059e8360fc78
[INFO] running `Command { std: "docker" "start" "-a" "63cebc15f05808c550e6ca32bcfaa987a2dbcd03c2234577ae05059e8360fc78", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling syn v1.0.74
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling serde v1.0.127
[INFO] [stderr]    Compiling pin-project-internal v0.4.28
[INFO] [stderr]    Compiling radium v0.5.3
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[INFO] [stderr]    Compiling lexical-core v0.7.6
[INFO] [stderr]    Compiling tap v1.0.1
[INFO] [stderr]    Compiling wyz v0.2.0
[INFO] [stderr]    Compiling funty v1.1.0
[INFO] [stderr]     Checking arrayvec v0.5.2
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[INFO] [stderr]     Checking static_assertions v1.1.0
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[INFO] [stderr]     Checking tower-layer v0.3.1
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[INFO] [stderr]    Compiling futures-util v0.3.16
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[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
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[INFO] [stderr]    Compiling memoffset v0.5.6
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[INFO] [stderr]     Checking num_cpus v1.13.0
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[INFO] [stderr]    Compiling bitflags v1.2.1
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[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking itertools v0.9.0
[INFO] [stderr]     Checking mio-extras v2.0.6
[INFO] [stderr]     Checking block-buffer v0.7.3
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]    Compiling clang-sys v1.2.0
[INFO] [stderr]     Checking sha2 v0.8.2
[INFO] [stderr]    Compiling aho-corasick v0.7.15
[INFO] [stderr]    Compiling jobserver v0.1.23
[INFO] [stderr]     Checking tokio v0.2.25
[INFO] [stderr]    Compiling bitvec v0.19.5
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand_pcg v0.2.1
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]    Compiling cc v1.0.69
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking rand v0.8.4
[INFO] [stderr]    Compiling const-random-macro v0.1.13
[INFO] [stderr]     Checking regex v1.4.6
[INFO] [stderr]     Checking const-random v0.1.13
[INFO] [stderr]     Checking crossbeam-queue v0.2.3
[INFO] [stderr]     Checking crossbeam-channel v0.4.4
[INFO] [stderr]     Checking ahash v0.3.8
[INFO] [stderr]     Checking evmap v11.0.0-alpha.7
[INFO] [stderr]     Checking twox-hash v1.6.1
[INFO] [stderr]     Checking tempfile v3.2.0
[INFO] [stderr]    Compiling backtrace v0.3.59
[INFO] [stderr]    Compiling libz-sys v1.1.3
[INFO] [stderr]    Compiling jemalloc-sys v0.3.2
[INFO] [stderr]     Checking crossbeam-deque v0.7.4
[INFO] [stderr]     Checking crossbeam v0.7.3
[INFO] [stderr]     Checking lexical v5.2.2
[INFO] [stderr]     Checking flate2 v1.0.20
[INFO] [stderr]     Checking addr2line v0.15.2
[INFO] [stderr]     Checking assert_infrequent v0.1.0
[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/assert_infrequent-0.1.0/src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(test)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking tokio-util v0.3.1
[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 `assert_infrequent` 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" "63cebc15f05808c550e6ca32bcfaa987a2dbcd03c2234577ae05059e8360fc78", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "63cebc15f05808c550e6ca32bcfaa987a2dbcd03c2234577ae05059e8360fc78", kill_on_drop: false }`
[INFO] [stdout] 63cebc15f05808c550e6ca32bcfaa987a2dbcd03c2234577ae05059e8360fc78
