[INFO] fetching crate pprof 0.3.18...
[INFO] documenting pprof-0.3.18 against beta-2020-08-29 for beta-1.47-rustdoc-1
[INFO] extracting crate pprof 0.3.18 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate pprof 0.3.18 on toolchain beta-2020-08-29
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate pprof 0.3.18
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate pprof 0.3.18
[INFO] tweaked toml for crates.io crate pprof 0.3.18 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate crates.io crate pprof 0.3.18 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "fetch" "--locked" "--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 str_stack v0.1.0
[INFO] [stderr]   Downloaded const-random-macro v0.1.8
[INFO] [stderr]   Downloaded loom v0.3.4
[INFO] [stderr]   Downloaded proc-macro-hack v0.5.16
[INFO] [stderr]   Downloaded multimap v0.8.1
[INFO] [stderr]   Downloaded const-random v0.1.8
[INFO] [stderr]   Downloaded ahash v0.3.8
[INFO] [stderr]   Downloaded rgb v0.8.18
[INFO] [stderr]   Downloaded inferno v0.10.0
[INFO] [stderr]   Downloaded symbolic-common v7.4.0
[INFO] [stderr]   Downloaded cpp_demangle v0.3.0
[INFO] [stderr]   Downloaded cc v1.0.57
[INFO] [stderr]   Downloaded generator v0.6.21
[INFO] [stderr]   Downloaded bytes v0.5.5
[INFO] [stderr]   Downloaded prost v0.6.1
[INFO] [stderr]   Downloaded prost-types v0.6.1
[INFO] [stderr]   Downloaded num-format v0.4.0
[INFO] [stderr]   Downloaded msvc-demangler v0.8.0
[INFO] [stderr]   Downloaded prost-build v0.6.1
[INFO] [stderr]   Downloaded petgraph v0.5.1
[INFO] [stderr]   Downloaded miniz_oxide v0.3.7
[INFO] [stderr]   Downloaded symbolic-demangle v7.4.0
[INFO] [stderr]   Downloaded uuid v0.8.1
[INFO] [stderr]   Downloaded debugid v0.7.2
[INFO] [stderr]   Downloaded memmap v0.7.0
[INFO] [stderr]   Downloaded backtrace v0.3.49
[INFO] [stderr]   Downloaded lock_api v0.4.0
[INFO] [stderr]   Downloaded prost-derive v0.6.1
[INFO] [stderr]   Downloaded addr2line v0.12.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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-2020-08-29" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 478c64099d2c693f4921fdd041e9edf6ac74b1d5529da11eae4b3519749a27b7
[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" "478c64099d2c693f4921fdd041e9edf6ac74b1d5529da11eae4b3519749a27b7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "478c64099d2c693f4921fdd041e9edf6ac74b1d5529da11eae4b3519749a27b7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "478c64099d2c693f4921fdd041e9edf6ac74b1d5529da11eae4b3519749a27b7", kill_on_drop: false }`
[INFO] [stdout] 478c64099d2c693f4921fdd041e9edf6ac74b1d5529da11eae4b3519749a27b7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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-2020-08-29" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f5db99a60aaca257c4cc10d08ed2d4103b6f7de60102697b30c1cea5f62086d6
[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" "f5db99a60aaca257c4cc10d08ed2d4103b6f7de60102697b30c1cea5f62086d6", 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]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.71
[INFO] [stderr]    Compiling syn v1.0.33
[INFO] [stderr]     Checking adler32 v1.1.0
[INFO] [stderr]     Checking gimli v0.21.0
[INFO] [stderr]     Checking uuid v0.8.1
[INFO] [stderr]    Compiling cc v1.0.57
[INFO] [stderr]    Compiling pprof v0.3.18 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling cpp_demangle v0.3.0
[INFO] [stderr]     Checking lock_api v0.4.0
[INFO] [stderr]     Checking msvc-demangler v0.8.0
[INFO] [stderr]     Checking miniz_oxide v0.3.7
[INFO] [stderr]     Checking debugid v0.7.2
[INFO] [stderr]    Compiling symbolic-demangle v7.4.0
[INFO] [stderr]     Checking getrandom v0.1.14
[INFO] [stderr]     Checking memmap v0.7.0
[INFO] [stderr]     Checking parking_lot_core v0.8.0
[INFO] [stderr]     Checking nix v0.17.0
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking parking_lot v0.11.0
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking addr2line v0.12.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking backtrace v0.3.49
[INFO] [stderr]     Checking tempfile v3.1.0
[INFO] [stderr]    Compiling synstructure v0.12.4
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]    Compiling thiserror-impl v1.0.20
[INFO] [stderr]     Checking failure v0.1.8
[INFO] [stderr]     Checking symbolic-common v7.4.0
[INFO] [stderr]     Checking thiserror v1.0.20
[INFO] [stderr]  Documenting pprof v0.3.18 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 42.66s
[INFO] running `Command { std: "docker" "inspect" "f5db99a60aaca257c4cc10d08ed2d4103b6f7de60102697b30c1cea5f62086d6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f5db99a60aaca257c4cc10d08ed2d4103b6f7de60102697b30c1cea5f62086d6", kill_on_drop: false }`
[INFO] [stdout] f5db99a60aaca257c4cc10d08ed2d4103b6f7de60102697b30c1cea5f62086d6