[INFO] cloning repository https://github.com/1000teslas/sparse_matrix
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/1000teslas/sparse_matrix" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F1000teslas%2Fsparse_matrix", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F1000teslas%2Fsparse_matrix'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0d6392c07191d574255def33d253576b9a94c9bf
[INFO] documenting 1000teslas/sparse_matrix against beta-2020-10-09 for beta-1.48-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F1000teslas%2Fsparse_matrix" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/1000teslas/sparse_matrix on toolchain beta-2020-10-09
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-10-09" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/1000teslas/sparse_matrix
[INFO] finished tweaking git repo https://github.com/1000teslas/sparse_matrix
[INFO] tweaked toml for git repo https://github.com/1000teslas/sparse_matrix written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/1000teslas/sparse_matrix already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-10-09" "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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded scopeguard v1.1.0
[INFO] [stderr]   Downloaded wasm-bindgen-shared v0.2.68
[INFO] [stderr]   Downloaded half v1.6.0
[INFO] [stderr]   Downloaded num-iter v0.1.41
[INFO] [stderr]   Downloaded unicode-width v0.1.8
[INFO] [stderr]   Downloaded crossbeam-utils v0.7.2
[INFO] [stderr]   Downloaded syn v1.0.40
[INFO] [stderr]   Downloaded js-sys v0.3.45
[INFO] [stderr]   Downloaded semver v0.9.0
[INFO] [stderr]   Downloaded wasm-bindgen-macro v0.2.68
[INFO] [stderr]   Downloaded textwrap v0.11.0
[INFO] [stderr]   Downloaded atty v0.2.14
[INFO] [stderr]   Downloaded serde v1.0.116
[INFO] [stderr]   Downloaded itertools v0.9.0
[INFO] [stderr]   Downloaded num v0.3.0
[INFO] [stderr]   Downloaded tinytemplate v1.1.0
[INFO] [stderr]   Downloaded num-rational v0.3.0
[INFO] [stderr]   Downloaded wasm-bindgen v0.2.68
[INFO] [stderr]   Downloaded same-file v1.0.6
[INFO] [stderr]   Downloaded serde_json v1.0.57
[INFO] [stderr]   Downloaded criterion v0.3.3
[INFO] [stderr]   Downloaded num-complex v0.3.0
[INFO] [stderr]   Downloaded winapi-util v0.1.5
[INFO] [stderr]   Downloaded memoffset v0.5.5
[INFO] [stderr]   Downloaded clap v2.33.3
[INFO] [stderr]   Downloaded rayon v1.4.0
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[INFO] [stderr]   Downloaded bstr v0.2.13
[INFO] [stderr]   Downloaded num-bigint v0.3.0
[INFO] [stderr]   Downloaded crossbeam-channel v0.4.4
[INFO] [stderr]   Downloaded crossbeam-epoch v0.8.2
[INFO] [stderr]   Downloaded num_cpus v1.13.0
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[INFO] [stderr]   Downloaded semver-parser v0.7.0
[INFO] [stderr]   Downloaded rustc_version v0.2.3
[INFO] [stderr]   Downloaded cast v0.2.3
[INFO] [stderr]   Downloaded web-sys v0.3.45
[INFO] [stderr]   Downloaded byteorder v1.3.4
[INFO] [stderr]   Downloaded csv-core v0.1.10
[INFO] [stderr]   Downloaded oorandom v11.1.2
[INFO] [stderr]   Downloaded wasm-bindgen-backend v0.2.68
[INFO] [stderr]   Downloaded wasm-bindgen-macro-support v0.2.68
[INFO] [stderr]   Downloaded serde_cbor v0.11.1
[INFO] [stderr]   Downloaded csv v1.1.3
[INFO] [stderr]   Downloaded serde_derive v1.0.116
[INFO] [stderr]   Downloaded itoa v0.4.6
[INFO] [stderr]   Downloaded walkdir v2.3.1
[INFO] [stderr]   Downloaded plotters v0.2.15
[INFO] [stderr]   Downloaded num-integer v0.1.43
[INFO] [stderr]   Downloaded num-traits v0.2.12
[INFO] [stderr]   Downloaded hermit-abi v0.1.15
[INFO] [stderr]   Downloaded ryu v1.0.5
[INFO] [stderr]   Downloaded rayon-core v1.8.0
[INFO] [stderr]   Downloaded either v1.6.0
[INFO] [stderr]   Downloaded winapi v0.3.9
[INFO] [stderr]   Downloaded maybe-uninit v2.0.0
[INFO] [stderr]   Downloaded crossbeam-deque v0.7.3
[INFO] [stderr]   Downloaded autocfg v1.0.1
[INFO] [stderr]   Downloaded criterion-plot v0.4.3
[INFO] [stderr]   Downloaded winapi-i686-pc-windows-gnu v0.4.0
[INFO] [stderr]   Downloaded winapi-x86_64-pc-windows-gnu v0.4.0
[INFO] [stderr]   Downloaded regex-automata v0.1.9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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-2020-10-09" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 10df832ad957a6762631f5723cedfc76bcc57ed5350796eff305897daeee425f
[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" "10df832ad957a6762631f5723cedfc76bcc57ed5350796eff305897daeee425f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "10df832ad957a6762631f5723cedfc76bcc57ed5350796eff305897daeee425f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "10df832ad957a6762631f5723cedfc76bcc57ed5350796eff305897daeee425f", kill_on_drop: false }`
[INFO] [stdout] 10df832ad957a6762631f5723cedfc76bcc57ed5350796eff305897daeee425f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-10-09" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5dc20496582d843c8e0a123295d61bd53b872ebe756e5b4e2d8fcbd5b12e7691
[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" "5dc20496582d843c8e0a123295d61bd53b872ebe756e5b4e2d8fcbd5b12e7691", kill_on_drop: false }`
[INFO] [stderr]     Checking env_logger v0.7.1
[INFO] [stderr]     Checking num-complex v0.3.0
[INFO] [stderr]     Checking num-bigint v0.3.0
[INFO] [stderr]     Checking num-iter v0.1.41
[INFO] [stderr]     Checking rayon-core v1.8.0
[INFO] [stderr]     Checking quickcheck v0.9.2
[INFO] [stderr]     Checking rayon v1.4.0
[INFO] [stderr]     Checking num-rational v0.3.0
[INFO] [stderr]     Checking num v0.3.0
[INFO] [stderr]  Documenting sparse_matrix v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.62s
[INFO] running `Command { std: "docker" "inspect" "5dc20496582d843c8e0a123295d61bd53b872ebe756e5b4e2d8fcbd5b12e7691", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5dc20496582d843c8e0a123295d61bd53b872ebe756e5b4e2d8fcbd5b12e7691", kill_on_drop: false }`
[INFO] [stdout] 5dc20496582d843c8e0a123295d61bd53b872ebe756e5b4e2d8fcbd5b12e7691