[INFO] fetching crate noria-common 0.6.0...
[INFO] testing noria-common-0.6.0 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate noria-common 0.6.0 into /workspace/builds/worker-19/source
[INFO] validating manifest of crates.io crate noria-common 0.6.0 on toolchain beta-2021-09-08
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate noria-common 0.6.0
[INFO] finished tweaking crates.io crate noria-common 0.6.0
[INFO] tweaked toml for crates.io crate noria-common 0.6.0 written to /workspace/builds/worker-19/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "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-2021-09-08" "fetch" "--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-19/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-19/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" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1522c55059dacc2307d409bf4f61711f10bc1a527a007989102628e39d70c383
[INFO] running `Command { std: "docker" "start" "-a" "1522c55059dacc2307d409bf4f61711f10bc1a527a007989102628e39d70c383", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1522c55059dacc2307d409bf4f61711f10bc1a527a007989102628e39d70c383", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1522c55059dacc2307d409bf4f61711f10bc1a527a007989102628e39d70c383", kill_on_drop: false }`
[INFO] [stdout] 1522c55059dacc2307d409bf4f61711f10bc1a527a007989102628e39d70c383
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-19/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-19/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" "+beta-2021-09-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5d05f625a5f77e149443a40a1e6f19f778431afa7cef7af2bc45d3f324d83544
[INFO] running `Command { std: "docker" "start" "-a" "5d05f625a5f77e149443a40a1e6f19f778431afa7cef7af2bc45d3f324d83544", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.101
[INFO] [stderr]    Compiling syn v1.0.76
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling proc-macro-hack v0.5.19
[INFO] [stderr]    Compiling bytes v0.5.6
[INFO] [stderr]    Compiling serde v1.0.130
[INFO] [stderr]    Compiling pin-project-lite v0.1.12
[INFO] [stderr]    Compiling cc v1.0.70
[INFO] [stderr]    Compiling tower-service v0.3.1
[INFO] [stderr]    Compiling pin-project-internal v0.4.28
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]    Compiling futures-task v0.3.17
[INFO] [stderr]    Compiling proc-macro-nested v0.1.7
[INFO] [stderr]    Compiling futures-sink v0.3.17
[INFO] [stderr]    Compiling typenum v1.14.0
[INFO] [stderr]    Compiling ppv-lite86 v0.2.10
[INFO] [stderr]    Compiling static_assertions v1.1.0
[INFO] [stderr]    Compiling crunchy v0.2.2
[INFO] [stderr]    Compiling arrayvec v0.5.2
[INFO] [stderr]    Compiling lexical-core v0.7.6
[INFO] [stderr]    Compiling hashbrown v0.11.2
[INFO] [stderr]    Compiling itoa v0.4.8
[INFO] [stderr]    Compiling bitflags v1.3.2
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[INFO] [stderr]    Compiling tiny-keccak v2.0.2
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[INFO] [stderr]    Compiling rustc-demangle v0.1.21
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[INFO] [stderr]    Compiling byte-tools v0.3.1
[INFO] [stderr]    Compiling futures-channel v0.3.17
[INFO] [stderr]    Compiling httparse v1.5.1
[INFO] [stderr]    Compiling tower-layer v0.3.1
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[INFO] [stderr]    Compiling lazycell v1.3.0
[INFO] [stderr]    Compiling opaque-debug v0.2.3
[INFO] [stderr]    Compiling slog v2.7.0
[INFO] [stderr]    Compiling sha1 v0.6.0
[INFO] [stderr]    Compiling httpdate v0.3.2
[INFO] [stderr]    Compiling uuid v0.8.2
[INFO] [stderr]    Compiling snowflake v1.3.0
[INFO] [stderr]    Compiling fixedbitset v0.2.0
[INFO] [stderr]    Compiling base64 v0.12.3
[INFO] [stderr]    Compiling bufstream v0.1.4
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling futures-macro v0.3.17
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling futures-util v0.3.17
[INFO] [stderr]    Compiling indexmap v1.7.0
[INFO] [stderr]    Compiling num-integer v0.1.44
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[INFO] [stderr]    Compiling time v0.2.27
[INFO] [stderr]    Compiling failure_derive v0.1.8
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[INFO] [stderr]    Compiling tower-make v0.3.0
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[INFO] [stderr]    Compiling want v0.3.0
[INFO] [stderr]    Compiling http v0.2.4
[INFO] [stderr]    Compiling object v0.26.2
[INFO] [stderr]    Compiling aho-corasick v0.7.18
[INFO] [stderr]    Compiling backtrace v0.3.61
[INFO] [stderr]    Compiling libz-sys v1.1.3
[INFO] [stderr]    Compiling iovec v0.1.4
[INFO] [stderr]    Compiling net2 v0.2.37
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling getrandom v0.2.3
[INFO] [stderr]    Compiling time v0.1.43
[INFO] [stderr]    Compiling socket2 v0.3.19
[INFO] [stderr]    Compiling crossbeam-queue v0.2.3
[INFO] [stderr]    Compiling crossbeam-channel v0.4.4
[INFO] [stderr]    Compiling rand_core v0.6.3
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling mio v0.6.23
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling const-random-macro v0.1.13
[INFO] [stderr]    Compiling crossbeam-deque v0.7.4
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling rand_pcg v0.2.1
[INFO] [stderr]    Compiling generic-array v0.12.4
[INFO] [stderr]    Compiling flate2 v1.0.21
[INFO] [stderr]    Compiling regex v1.5.4
[INFO] [stderr]    Compiling crossbeam v0.7.3
[INFO] [stderr]    Compiling rand v0.8.4
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling block-buffer v0.7.3
[INFO] [stderr]    Compiling digest v0.8.1
[INFO] [stderr]    Compiling mio-uds v0.6.8
[INFO] [stderr]    Compiling mio-extras v2.0.6
[INFO] [stderr]    Compiling lexical v5.2.2
[INFO] [stderr]    Compiling sha2 v0.8.2
[INFO] [stderr]    Compiling const-random v0.1.13
[INFO] [stderr]    Compiling tokio v0.2.25
[INFO] [stderr]    Compiling ahash v0.3.8
[INFO] [stderr]    Compiling twox-hash v1.6.1
[INFO] [stderr]    Compiling addr2line v0.16.0
[INFO] [stderr]    Compiling http-body v0.3.1
[INFO] [stderr]    Compiling synstructure v0.12.5
[INFO] [stderr]    Compiling 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] [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" "5d05f625a5f77e149443a40a1e6f19f778431afa7cef7af2bc45d3f324d83544", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5d05f625a5f77e149443a40a1e6f19f778431afa7cef7af2bc45d3f324d83544", kill_on_drop: false }`
[INFO] [stdout] 5d05f625a5f77e149443a40a1e6f19f778431afa7cef7af2bc45d3f324d83544