[INFO] cloning repository https://github.com/sundy-li/learn
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/sundy-li/learn" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsundy-li%2Flearn", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsundy-li%2Flearn'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 719d509ea572dd2056bb2b03c4196caeffe61571
[INFO] testing sundy-li/learn against beta-2021-08-01 for beta-1.55-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsundy-li%2Flearn" "/workspace/builds/worker-8/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/sundy-li/learn 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 git repo https://github.com/sundy-li/learn
[INFO] finished tweaking git repo https://github.com/sundy-li/learn
[INFO] tweaked toml for git repo https://github.com/sundy-li/learn written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/sundy-li/learn already has a lockfile, it will not be regenerated
[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]     Updating git repository `https://github.com/datafuse-extras/arrow2`
[INFO] [stderr]     Updating git submodule `https://github.com/apache/arrow-testing`
[INFO] [stderr]     Updating git submodule `https://github.com/apache/parquet-testing`
[INFO] [stderr]     Updating git repository `https://github.com/datafuse-extras/parquet2`
[INFO] [stderr]     Updating git submodule `https://github.com/apache/parquet-testing.git`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded zstd-safe v3.0.1+zstd.1.4.9
[INFO] [stderr]   Downloaded streaming-iterator v0.1.5
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[INFO] [stderr]   Downloaded pin-project-internal v1.0.8
[INFO] [stderr]   Downloaded prost-derive v0.7.0
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[INFO] [stderr]   Downloaded snap v1.0.5
[INFO] [stderr]   Downloaded symbolic-demangle v8.3.0
[INFO] [stderr]   Downloaded criterion v0.3.5
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[INFO] [stderr]   Downloaded multiversion-macros v0.6.1
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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] 6f288e35bc2347670f1324e231938039e4cabd7aff4a4b60b1428feb0b6d723c
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "6f288e35bc2347670f1324e231938039e4cabd7aff4a4b60b1428feb0b6d723c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6f288e35bc2347670f1324e231938039e4cabd7aff4a4b60b1428feb0b6d723c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6f288e35bc2347670f1324e231938039e4cabd7aff4a4b60b1428feb0b6d723c", kill_on_drop: false }`
[INFO] [stdout] 6f288e35bc2347670f1324e231938039e4cabd7aff4a4b60b1428feb0b6d723c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3c5e4ebc33070e170f426ccde60ddfd17ce34272af47c92ab8ca1fba50a5920b
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "3c5e4ebc33070e170f426ccde60ddfd17ce34272af47c92ab8ca1fba50a5920b", 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] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling proc-macro2 v1.0.28
[INFO] [stderr]    Compiling libc v0.2.98
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling syn v1.0.74
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling futures-core v0.3.16
[INFO] [stderr]    Compiling pin-project-lite v0.2.7
[INFO] [stderr]    Compiling proc-macro-hack v0.5.19
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling futures-sink v0.3.16
[INFO] [stderr]    Compiling futures-channel v0.3.16
[INFO] [stderr]    Compiling futures-task v0.3.16
[INFO] [stderr]    Compiling proc-macro-nested v0.1.7
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling serde_derive v1.0.127
[INFO] [stderr]    Compiling itoa v0.4.7
[INFO] [stderr]    Compiling slab v0.4.3
[INFO] [stderr]    Compiling bytes v1.0.1
[INFO] [stderr]    Compiling futures-io v0.3.16
[INFO] [stderr]    Compiling serde v1.0.127
[INFO] [stderr]    Compiling pin-utils v0.1.0
[INFO] [stderr]    Compiling hashbrown v0.11.2
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling version_check v0.9.3
[INFO] [stderr]    Compiling byteorder v1.4.3
[INFO] [stderr]    Compiling lexical-core v0.7.6
[INFO] [stderr]    Compiling zstd-safe v3.0.1+zstd.1.4.9
[INFO] [stderr]    Compiling crc32fast v1.2.1
[INFO] [stderr]    Compiling arrayvec v0.5.2
[INFO] [stderr]    Compiling static_assertions v1.1.0
[INFO] [stderr]    Compiling either v1.6.1
[INFO] [stderr]    Compiling ppv-lite86 v0.2.10
[INFO] [stderr]    Compiling crunchy v0.2.2
[INFO] [stderr]    Compiling alloc-no-stdlib v2.0.3
[INFO] [stderr]    Compiling fnv v1.0.7
[INFO] [stderr]    Compiling anyhow v1.0.42
[INFO] [stderr]    Compiling regex-automata v0.1.10
[INFO] [stderr]    Compiling adler v1.0.2
[INFO] [stderr]    Compiling integer-encoding v1.1.7
[INFO] [stderr]    Compiling serde_json v1.0.66
[INFO] [stderr]    Compiling snap v1.0.5
[INFO] [stderr]    Compiling httparse v1.4.1
[INFO] [stderr]    Compiling radium v0.5.3
[INFO] [stderr]    Compiling try-lock v0.2.3
[INFO] [stderr]    Compiling regex-syntax v0.6.25
[INFO] [stderr]    Compiling async-trait v0.1.51
[INFO] [stderr]    Compiling streaming-iterator v0.1.5
[INFO] [stderr]    Compiling libm v0.1.4
[INFO] [stderr]    Compiling smallvec v1.6.1
[INFO] [stderr]    Compiling tower-service v0.3.1
[INFO] [stderr]    Compiling unicode-width v0.1.8
[INFO] [stderr]    Compiling tap v1.0.1
[INFO] [stderr]    Compiling httpdate v1.0.1
[INFO] [stderr]    Compiling tower-layer v0.3.1
[INFO] [stderr]    Compiling packed_simd_2 v0.3.5
[INFO] [stderr]    Compiling encode_unicode v0.3.6
[INFO] [stderr]    Compiling once_cell v1.8.0
[INFO] [stderr]    Compiling base64 v0.13.0
[INFO] [stderr]    Compiling wyz v0.2.0
[INFO] [stderr]    Compiling hex v0.4.3
[INFO] [stderr]    Compiling funty v1.1.0
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling percent-encoding v2.1.0
[INFO] [stderr]    Compiling hash_hasher v2.0.3
[INFO] [stderr]    Compiling bumpalo v3.7.0
[INFO] [stderr]    Compiling tracing-core v0.1.18
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling futures-macro v0.3.16
[INFO] [stderr]    Compiling futures-util v0.3.16
[INFO] [stderr]    Compiling indexmap v1.7.0
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling tokio v1.9.0
[INFO] [stderr]    Compiling num-bigint v0.4.0
[INFO] [stderr]    Compiling miniz_oxide v0.4.4
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]    Compiling num-rational v0.4.0
[INFO] [stderr]    Compiling itertools v0.9.0
[INFO] [stderr]    Compiling itertools v0.10.1
[INFO] [stderr]    Compiling alloc-stdlib v0.2.1
[INFO] [stderr]    Compiling http v0.2.4
[INFO] [stderr]    Compiling ahash v0.7.4
[INFO] [stderr]    Compiling nom v6.2.1
[INFO] [stderr]    Compiling allocate v0.1.0 (/opt/rustwide/workdir/allocate)
[INFO] [stdout] warning: field is never read: `cuteness`
[INFO] [stdout]  --> allocate/src/lib.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     cuteness: u64,
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `age`
[INFO] [stdout]  --> allocate/src/lib.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 |     age: u8,
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `scritches_required`
[INFO] [stdout]   --> allocate/src/lib.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 |     scritches_required: bool,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling brotli-decompressor v2.3.2
[INFO] [stderr]    Compiling want v0.3.0
[INFO] [stderr]    Compiling csv-core v0.1.10
[INFO] [stderr]    Compiling aho-corasick v0.7.15
[INFO] [stderr]    Compiling bitpacking v0.8.4
[INFO] [stderr]    Compiling bitvec v0.19.5
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling ordered-float v1.1.1
[INFO] [stderr]    Compiling num-complex v0.4.0
[INFO] [stderr]    Compiling brotli v3.3.2
[INFO] [stderr]    Compiling http-body v0.4.2
[INFO] [stderr] error: could not compile `regex-syntax`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name regex_syntax --edition=2018 /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/regex-syntax-0.6.25/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts --crate-type lib --emit=dep-info,metadata,link -C embed-bitcode=no -C debuginfo=2 --cfg 'feature="default"' --cfg 'feature="unicode"' --cfg 'feature="unicode-age"' --cfg 'feature="unicode-bool"' --cfg 'feature="unicode-case"' --cfg 'feature="unicode-gencat"' --cfg 'feature="unicode-perl"' --cfg 'feature="unicode-script"' --cfg 'feature="unicode-segment"' -C metadata=36a6befa84678a6a -C extra-filename=-36a6befa84678a6a --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --cap-lints allow --cap-lints=warn` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[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_2-0.3.5/src/lib.rs:214:1
[INFO] [stdout]     |
[INFO] [stdout] 214 | / #![feature(
[INFO] [stdout] 215 | |     const_generics,
[INFO] [stdout] 216 | |     repr_simd,
[INFO] [stdout] 217 | |     rustc_attrs,
[INFO] [stdout] ...   |
[INFO] [stdout] 227 | |     llvm_asm
[INFO] [stdout] 228 | | )]
[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: build failed
[INFO] running `Command { std: "docker" "inspect" "3c5e4ebc33070e170f426ccde60ddfd17ce34272af47c92ab8ca1fba50a5920b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3c5e4ebc33070e170f426ccde60ddfd17ce34272af47c92ab8ca1fba50a5920b", kill_on_drop: false }`
[INFO] [stdout] 3c5e4ebc33070e170f426ccde60ddfd17ce34272af47c92ab8ca1fba50a5920b
