[INFO] fetching crate criterion-perf-events 0.2.0...
[INFO] documenting criterion-perf-events-0.2.0 against beta-2022-05-20 for beta-1.62-rustdoc-1
[INFO] extracting crate criterion-perf-events 0.2.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate criterion-perf-events 0.2.0 on toolchain beta-2022-05-20
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-05-20" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-4/source/rust-toolchain
[INFO] started tweaking crates.io crate criterion-perf-events 0.2.0
[INFO] finished tweaking crates.io crate criterion-perf-events 0.2.0
[INFO] tweaked toml for crates.io crate criterion-perf-events 0.2.0 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate crates.io crate criterion-perf-events 0.2.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-05-20" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: file found to be present in multiple build targets: /workspace/builds/worker-4/source/examples/fibo_bench.rs
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-05-20" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c3a110e012eac1521db2e80345109a39b91d643820c0d04db9723f6fa6bbba2d
[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" "c3a110e012eac1521db2e80345109a39b91d643820c0d04db9723f6fa6bbba2d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c3a110e012eac1521db2e80345109a39b91d643820c0d04db9723f6fa6bbba2d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c3a110e012eac1521db2e80345109a39b91d643820c0d04db9723f6fa6bbba2d", kill_on_drop: false }`
[INFO] [stdout] c3a110e012eac1521db2e80345109a39b91d643820c0d04db9723f6fa6bbba2d
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-05-20" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 89176f09768fe544016c5ed44d387b25a2177e6c8f787eff5000bbc10cd07fa8
[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" "89176f09768fe544016c5ed44d387b25a2177e6c8f787eff5000bbc10cd07fa8", kill_on_drop: false }`
[INFO] [stderr] warning: file found to be present in multiple build targets: /opt/rustwide/workdir/examples/fibo_bench.rs
[INFO] [stderr]    Compiling libc v0.2.119
[INFO] [stderr]    Compiling serde v1.0.136
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling serde_json v1.0.79
[INFO] [stderr]    Compiling crossbeam-utils v0.8.7
[INFO] [stderr]    Compiling ppv-lite86 v0.2.16
[INFO] [stderr]    Compiling semver v1.0.6
[INFO] [stderr]    Compiling siphasher v0.3.10
[INFO] [stderr]    Compiling ryu v1.0.9
[INFO] [stderr]    Compiling proc-macro2 v1.0.36
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.7
[INFO] [stderr]    Compiling regex-automata v0.1.10
[INFO] [stderr]    Compiling rayon-core v1.9.1
[INFO] [stderr]    Compiling itoa v0.4.8
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]     Checking bitflags v1.3.2
[INFO] [stderr]    Compiling itoa v1.0.1
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]    Compiling version_check v0.1.5
[INFO] [stderr]     Checking either v1.6.1
[INFO] [stderr]    Compiling syn v1.0.86
[INFO] [stderr]     Checking plotters-backend v0.3.2
[INFO] [stderr]    Compiling serde_derive v1.0.136
[INFO] [stderr]     Checking same-file v1.0.6
[INFO] [stderr]     Checking libc v0.1.12
[INFO] [stderr]     Checking regex-syntax v0.6.25
[INFO] [stderr]     Checking bit_field v0.10.1
[INFO] [stderr]     Checking half v1.8.2
[INFO] [stderr]     Checking oorandom v11.1.3
[INFO] [stderr]    Compiling memoffset v0.6.5
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling rayon v1.5.1
[INFO] [stderr]     Checking raw-cpuid v10.2.0
[INFO] [stderr]    Compiling phf_shared v0.9.0
[INFO] [stderr]     Checking itertools v0.10.3
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking walkdir v2.3.2
[INFO] [stderr]     Checking plotters-svg v0.3.1
[INFO] [stderr]     Checking clap v2.34.0
[INFO] [stderr]    Compiling nom v4.2.3
[INFO] [stderr]     Checking phf v0.9.0
[INFO] [stderr]     Checking crossbeam-channel v0.5.2
[INFO] [stderr]    Compiling rustc_version v0.4.0
[INFO] [stderr]     Checking csv-core v0.1.10
[INFO] [stderr]    Compiling quote v1.0.15
[INFO] [stderr]    Compiling getrandom v0.2.5
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking num_cpus v1.13.1
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking regex v1.5.5
[INFO] [stderr]    Compiling rand_core v0.6.3
[INFO] [stderr]    Compiling cast v0.2.7
[INFO] [stderr]     Checking crossbeam-deque v0.8.1
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]     Checking tempdir v0.3.7
[INFO] [stderr]     Checking mmap v0.1.1
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]     Checking plotters v0.3.1
[INFO] [stderr]     Checking criterion-plot v0.4.4
[INFO] [stderr]    Compiling phf_generator v0.9.1
[INFO] [stderr]    Compiling phf_codegen v0.9.0
[INFO] [stderr]     Checking bstr v0.2.17
[INFO] [stderr]     Checking serde_cbor v0.11.2
[INFO] [stderr]     Checking csv v1.1.6
[INFO] [stderr]     Checking tinytemplate v1.2.1
[INFO] [stderr]    Compiling x86 v0.47.0
[INFO] [stderr]     Checking criterion v0.3.5
[INFO] [stderr]     Checking perfcnt v0.8.0
[INFO] [stderr]  Documenting criterion-perf-events v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2m 21s
[INFO] running `Command { std: "docker" "inspect" "89176f09768fe544016c5ed44d387b25a2177e6c8f787eff5000bbc10cd07fa8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "89176f09768fe544016c5ed44d387b25a2177e6c8f787eff5000bbc10cd07fa8", kill_on_drop: false }`
[INFO] [stdout] 89176f09768fe544016c5ed44d387b25a2177e6c8f787eff5000bbc10cd07fa8
[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" "RUSTFLAGS=--cap-lints=warn" "-e" "DOCS_RS=1" "-e" "RUSTC_BOOTSTRAP=1" "-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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-05-20" "rustdoc" "--lib" "-Zrustdoc-map" "--frozen" "--message-format=json" "--" "-Z" "unstable-options" "--document-private-items", kill_on_drop: false }`
[INFO] [stdout] 9518c529fcfae0b3e14eb96f97d17bffc376bd2fa00013bdda36dd044eb6e3f2
[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" "9518c529fcfae0b3e14eb96f97d17bffc376bd2fa00013bdda36dd044eb6e3f2", kill_on_drop: false }`
[INFO] [stderr] warning: file found to be present in multiple build targets: /opt/rustwide/workdir/examples/fibo_bench.rs
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.119
[INFO] [stderr]    Compiling serde v1.0.136
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling serde_json v1.0.79
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling semver v1.0.6
[INFO] [stderr]    Compiling crossbeam-utils v0.8.7
[INFO] [stderr]    Compiling ppv-lite86 v0.2.16
[INFO] [stderr]    Compiling siphasher v0.3.10
[INFO] [stderr]    Compiling ryu v1.0.9
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.7
[INFO] [stderr]    Compiling proc-macro2 v1.0.36
[INFO] [stderr]    Compiling regex-automata v0.1.10
[INFO] [stderr]    Compiling rayon-core v1.9.1
[INFO] [stderr]    Compiling itoa v0.4.8
[INFO] [stderr]     Checking bitflags v1.3.2
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]    Compiling itoa v1.0.1
[INFO] [stderr]    Compiling syn v1.0.86
[INFO] [stderr]    Compiling version_check v0.1.5
[INFO] [stderr]     Checking either v1.6.1
[INFO] [stderr]    Compiling serde_derive v1.0.136
[INFO] [stderr]     Checking unicode-width v0.1.9
[INFO] [stderr]     Checking plotters-backend v0.3.2
[INFO] [stderr]     Checking remove_dir_all v0.5.3
[INFO] [stderr]     Checking regex-syntax v0.6.25
[INFO] [stderr]     Checking libc v0.1.12
[INFO] [stderr]     Checking same-file v1.0.6
[INFO] [stderr]     Checking bit_field v0.10.1
[INFO] [stderr]     Checking half v1.8.2
[INFO] [stderr]     Checking oorandom v11.1.3
[INFO] [stderr]    Compiling phf_shared v0.9.0
[INFO] [stderr]     Checking raw-cpuid v10.2.0
[INFO] [stderr]     Checking itertools v0.10.3
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking walkdir v2.3.2
[INFO] [stderr]    Compiling memoffset v0.6.5
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling rayon v1.5.1
[INFO] [stderr]     Checking plotters-svg v0.3.1
[INFO] [stderr]    Compiling nom v4.2.3
[INFO] [stderr]     Checking clap v2.34.0
[INFO] [stderr]     Checking phf v0.9.0
[INFO] [stderr]     Checking crossbeam-channel v0.5.2
[INFO] [stderr]     Checking csv-core v0.1.10
[INFO] [stderr]    Compiling rustc_version v0.4.0
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking num_cpus v1.13.1
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]    Compiling getrandom v0.2.5
[INFO] [stderr]    Compiling quote v1.0.15
[INFO] [stderr]     Checking regex v1.5.5
[INFO] [stderr]    Compiling rand_core v0.6.3
[INFO] [stderr]    Compiling cast v0.2.7
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]     Checking crossbeam-deque v0.8.1
[INFO] [stderr]     Checking tempdir v0.3.7
[INFO] [stderr]     Checking mmap v0.1.1
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]     Checking plotters v0.3.1
[INFO] [stderr]     Checking criterion-plot v0.4.4
[INFO] [stderr]    Compiling phf_generator v0.9.1
[INFO] [stderr]    Compiling phf_codegen v0.9.0
[INFO] [stderr]     Checking bstr v0.2.17
[INFO] [stderr]     Checking serde_cbor v0.11.2
[INFO] [stderr]     Checking csv v1.1.6
[INFO] [stderr]     Checking tinytemplate v1.2.1
[INFO] [stderr]    Compiling x86 v0.47.0
[INFO] [stderr]     Checking criterion v0.3.5
[INFO] [stderr]     Checking perfcnt v0.8.0
[INFO] [stderr]  Documenting criterion-perf-events v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2m 06s
[INFO] running `Command { std: "docker" "inspect" "9518c529fcfae0b3e14eb96f97d17bffc376bd2fa00013bdda36dd044eb6e3f2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9518c529fcfae0b3e14eb96f97d17bffc376bd2fa00013bdda36dd044eb6e3f2", kill_on_drop: false }`
[INFO] [stdout] 9518c529fcfae0b3e14eb96f97d17bffc376bd2fa00013bdda36dd044eb6e3f2