[INFO] fetching crate pretty_backtrace 0.1.2...
[INFO] documenting pretty_backtrace-0.1.2 against 1.61.0 for beta-1.62-rustdoc-1
[INFO] extracting crate pretty_backtrace 0.1.2 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate pretty_backtrace 0.1.2 on toolchain 1.61.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate pretty_backtrace 0.1.2
[INFO] finished tweaking crates.io crate pretty_backtrace 0.1.2
[INFO] tweaked toml for crates.io crate pretty_backtrace 0.1.2 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "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" "+1.61.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded intervaltree v0.2.7
[INFO] [stderr]   Downloaded cpp_demangle v0.2.16
[INFO] [stderr]   Downloaded clang-sys v0.23.0
[INFO] [stderr]   Downloaded findshlibs v0.4.1
[INFO] [stderr]   Downloaded bindgen v0.39.0
[INFO] [stderr]   Downloaded goblin v0.0.22
[INFO] [stderr]   Downloaded parity-wasm v0.38.0
[INFO] [stderr]   Downloaded object v0.12.0
[INFO] [stderr]   Downloaded proc-macro2 v0.3.5
[INFO] [stderr]   Downloaded plist v0.4.2
[INFO] [stderr]   Downloaded gimli v0.18.0
[INFO] [stderr]   Downloaded addr2line v0.9.0
[INFO] [stderr]   Downloaded onig v4.3.3
[INFO] [stderr]   Downloaded syntect v3.2.0
[INFO] [stderr]   Downloaded onig_sys v69.1.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+1.61.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] c7a2e8cf9c26444781e062df40343fdaefb39ff5b545045803eb8437abedf112
[INFO] running `Command { std: "docker" "start" "-a" "c7a2e8cf9c26444781e062df40343fdaefb39ff5b545045803eb8437abedf112", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c7a2e8cf9c26444781e062df40343fdaefb39ff5b545045803eb8437abedf112", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c7a2e8cf9c26444781e062df40343fdaefb39ff5b545045803eb8437abedf112", kill_on_drop: false }`
[INFO] [stdout] c7a2e8cf9c26444781e062df40343fdaefb39ff5b545045803eb8437abedf112
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+1.61.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3bb124129217b5dcb3f560894c8e5c7556e056f2dea8a1a2e1e752e363ae0ba6
[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" "3bb124129217b5dcb3f560894c8e5c7556e056f2dea8a1a2e1e752e363ae0ba6", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling proc-macro2 v1.0.39
[INFO] [stderr]    Compiling unicode-ident v1.0.0
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling serde v1.0.137
[INFO] [stderr]    Compiling syn v1.0.95
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling glob v0.3.0
[INFO] [stderr]    Compiling libc v0.2.126
[INFO] [stderr]    Compiling serde_json v1.0.81
[INFO] [stderr]     Checking plain v0.2.3
[INFO] [stderr]    Compiling serde_derive v1.0.137
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]     Checking ryu v1.0.10
[INFO] [stderr]     Checking xml-rs v0.8.4
[INFO] [stderr]     Checking itoa v1.0.2
[INFO] [stderr]     Checking parity-wasm v0.38.0
[INFO] [stderr]     Checking regex-syntax v0.6.26
[INFO] [stderr]     Checking uuid v0.7.4
[INFO] [stderr]     Checking same-file v1.0.6
[INFO] [stderr]    Compiling onig_sys v69.1.0
[INFO] [stderr]    Compiling indexmap v1.8.2
[INFO] [stderr]     Checking line-wrap v0.1.1
[INFO] [stderr]    Compiling findshlibs v0.4.1
[INFO] [stderr]     Checking intervaltree v0.2.7
[INFO] [stderr]     Checking base64 v0.10.1
[INFO] [stderr]     Checking walkdir v2.3.2
[INFO] [stderr]    Compiling scroll v0.9.2
[INFO] [stderr]     Checking flate2 v1.0.24
[INFO] [stderr]     Checking object v0.28.4
[INFO] [stderr]     Checking aho-corasick v0.7.18
[INFO] [stderr]     Checking smallvec v0.6.14
[INFO] [stderr]    Compiling cpp_demangle v0.2.16
[INFO] [stderr]    Compiling quote v1.0.18
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]     Checking gimli v0.18.0
[INFO] [stderr]     Checking regex v1.5.6
[INFO] [stderr]    Compiling scroll_derive v0.9.5
[INFO] [stderr]     Checking plist v0.4.2
[INFO] [stderr]     Checking bincode v1.3.3
[INFO] [stderr]     Checking backtrace v0.3.65
[INFO] [stderr]     Checking onig v4.3.3
[INFO] [stderr]     Checking goblin v0.0.22
[INFO] [stderr]    Compiling rental-impl v0.5.5
[INFO] [stderr]     Checking object v0.12.0
[INFO] [stderr]     Checking addr2line v0.9.0
[INFO] [stderr]     Checking syntect v3.2.0
[INFO] [stderr]     Checking rental v0.5.6
[INFO] [stderr]  Documenting pretty_backtrace v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 42s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: rental v0.5.6
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 4`
[INFO] running `Command { std: "docker" "inspect" "3bb124129217b5dcb3f560894c8e5c7556e056f2dea8a1a2e1e752e363ae0ba6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3bb124129217b5dcb3f560894c8e5c7556e056f2dea8a1a2e1e752e363ae0ba6", kill_on_drop: false }`
[INFO] [stdout] 3bb124129217b5dcb3f560894c8e5c7556e056f2dea8a1a2e1e752e363ae0ba6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "RUSTC_BOOTSTRAP=1" "-e" "DOCS_RS=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" "+1.61.0" "rustdoc" "--lib" "-Zrustdoc-map" "--frozen" "--message-format=json" "--" "-Z" "unstable-options" "--document-private-items", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] ec54882fba53a2226499b122d20dc153aa8bee756b7df8969cd8999ba282689c
[INFO] running `Command { std: "docker" "start" "-a" "ec54882fba53a2226499b122d20dc153aa8bee756b7df8969cd8999ba282689c", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling proc-macro2 v1.0.39
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling cc v1.0.73
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling unicode-ident v1.0.0
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]     Checking adler v1.0.2
[INFO] [stderr]    Compiling crc32fast v1.3.2
[INFO] [stderr]    Compiling syn v1.0.95
[INFO] [stderr]    Compiling serde v1.0.137
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling pkg-config v0.3.25
[INFO] [stderr]    Compiling arrayvec v0.4.12
[INFO] [stderr]    Compiling maybe-uninit v2.0.0
[INFO] [stderr]    Compiling libc v0.2.126
[INFO] [stderr]    Compiling glob v0.3.0
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]     Checking safemem v0.3.3
[INFO] [stderr]     Checking hashbrown v0.11.2
[INFO] [stderr]    Compiling serde_json v1.0.81
[INFO] [stderr]     Checking quick-error v1.2.3
[INFO] [stderr]     Checking nodrop v0.1.14
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking plain v0.2.3
[INFO] [stderr]    Compiling serde_derive v1.0.137
[INFO] [stderr]     Checking stable_deref_trait v1.2.0
[INFO] [stderr]     Checking bitflags v1.3.2
[INFO] [stderr]     Checking uuid v0.7.4
[INFO] [stderr]     Checking ryu v1.0.10
[INFO] [stderr]     Checking rustc-demangle v0.1.21
[INFO] [stderr]     Checking itoa v1.0.2
[INFO] [stderr]     Checking xml-rs v0.8.4
[INFO] [stderr]     Checking lazycell v1.3.0
[INFO] [stderr]     Checking same-file v1.0.6
[INFO] [stderr]     Checking gimli v0.26.1
[INFO] [stderr]     Checking linked-hash-map v0.5.4
[INFO] [stderr]     Checking fallible-iterator v0.2.0
[INFO] [stderr]     Checking smallvec v1.8.0
[INFO] [stderr]     Checking regex-syntax v0.6.26
[INFO] [stderr]     Checking parity-wasm v0.38.0
[INFO] [stderr]     Checking fnv v1.0.7
[INFO] [stderr]     Checking miniz_oxide v0.5.1
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]     Checking base64 v0.10.1
[INFO] [stderr]    Compiling findshlibs v0.4.1
[INFO] [stderr]     Checking line-wrap v0.1.1
[INFO] [stderr]     Checking humantime v1.3.0
[INFO] [stderr]    Compiling indexmap v1.8.2
[INFO] [stderr]     Checking walkdir v2.3.2
[INFO] [stderr]     Checking yaml-rust v0.4.5
[INFO] [stderr]     Checking intervaltree v0.2.7
[INFO] [stderr]    Compiling cpp_demangle v0.2.16
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]     Checking flate2 v1.0.24
[INFO] [stderr]     Checking smallvec v0.6.14
[INFO] [stderr]    Compiling quote v1.0.18
[INFO] [stderr]     Checking aho-corasick v0.7.18
[INFO] [stderr]     Checking object v0.28.4
[INFO] [stderr]    Compiling scroll v0.9.2
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]    Compiling onig_sys v69.1.0
[INFO] [stderr]    Compiling backtrace v0.3.65
[INFO] [stderr]     Checking gimli v0.18.0
[INFO] [stderr]     Checking regex v1.5.6
[INFO] [stderr]     Checking addr2line v0.17.0
[INFO] [stderr]     Checking plist v0.4.2
[INFO] [stderr]     Checking bincode v1.3.3
[INFO] [stderr]    Compiling scroll_derive v0.9.5
[INFO] [stderr]     Checking onig v4.3.3
[INFO] [stderr]     Checking goblin v0.0.22
[INFO] [stderr]    Compiling rental-impl v0.5.5
[INFO] [stderr]     Checking object v0.12.0
[INFO] [stderr]     Checking addr2line v0.9.0
[INFO] [stderr]     Checking syntect v3.2.0
[INFO] [stderr]     Checking rental v0.5.6
[INFO] [stderr]  Documenting pretty_backtrace v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2m 05s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: rental v0.5.6
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 5`
[INFO] running `Command { std: "docker" "inspect" "ec54882fba53a2226499b122d20dc153aa8bee756b7df8969cd8999ba282689c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ec54882fba53a2226499b122d20dc153aa8bee756b7df8969cd8999ba282689c", kill_on_drop: false }`
[INFO] [stdout] ec54882fba53a2226499b122d20dc153aa8bee756b7df8969cd8999ba282689c