[INFO] fetching crate creachadair-imath-sys 0.1.2...
[INFO] documenting creachadair-imath-sys-0.1.2 against beta-2022-05-20 for beta-1.62-rustdoc-1
[INFO] extracting crate creachadair-imath-sys 0.1.2 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate creachadair-imath-sys 0.1.2 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] started tweaking crates.io crate creachadair-imath-sys 0.1.2
[INFO] finished tweaking crates.io crate creachadair-imath-sys 0.1.2
[INFO] tweaked toml for crates.io crate creachadair-imath-sys 0.1.2 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-05-20" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-05-20" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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" "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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] c893cde9792b6b7638dc9316e9ed271ed96b815076f44ca0d3fa570907dd404a
[INFO] running `Command { std: "docker" "start" "-a" "c893cde9792b6b7638dc9316e9ed271ed96b815076f44ca0d3fa570907dd404a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c893cde9792b6b7638dc9316e9ed271ed96b815076f44ca0d3fa570907dd404a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c893cde9792b6b7638dc9316e9ed271ed96b815076f44ca0d3fa570907dd404a", kill_on_drop: false }`
[INFO] [stdout] c893cde9792b6b7638dc9316e9ed271ed96b815076f44ca0d3fa570907dd404a
[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" "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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] f8aebab34073cfffcff74c45975750572b5ea9b84e30badb98946aadf27e47dd
[INFO] running `Command { std: "docker" "start" "-a" "f8aebab34073cfffcff74c45975750572b5ea9b84e30badb98946aadf27e47dd", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling libc v0.2.126
[INFO] [stderr]    Compiling proc-macro2 v1.0.39
[INFO] [stderr]    Compiling unicode-ident v1.0.0
[INFO] [stderr]    Compiling bindgen v0.58.1
[INFO] [stderr]    Compiling regex-syntax v0.6.26
[INFO] [stderr]    Compiling dunce v1.0.2
[INFO] [stderr]    Compiling cc v1.0.73
[INFO] [stderr]    Compiling clang-sys v1.3.3
[INFO] [stderr]    Compiling nom v5.1.2
[INFO] [stderr]    Compiling quote v1.0.18
[INFO] [stderr]    Compiling regex v1.5.6
[INFO] [stderr]    Compiling cexpr v0.4.0
[INFO] [stderr]    Compiling creachadair-imath-sys v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr] warning: /opt/rustwide/workdir/vendor/imath/imath.c: In function 's_realloc':
[INFO] [stderr] warning: /opt/rustwide/workdir/vendor/imath/imath.c:1700:51: warning: unused parameter 'osize' [-Wunused-parameter]
[INFO] [stderr] warning:  1700 | static mp_digit *s_realloc(mp_digit *old, mp_size osize, mp_size nsize) {
[INFO] [stderr] warning:       |                                           ~~~~~~~~^~~~~
[INFO] [stderr]  Documenting creachadair-imath-sys v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 53.16s
[INFO] running `Command { std: "docker" "inspect" "f8aebab34073cfffcff74c45975750572b5ea9b84e30badb98946aadf27e47dd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f8aebab34073cfffcff74c45975750572b5ea9b84e30badb98946aadf27e47dd", kill_on_drop: false }`
[INFO] [stdout] f8aebab34073cfffcff74c45975750572b5ea9b84e30badb98946aadf27e47dd
[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" "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] 715c6df09c46243e57a8e49f7d384786c4d849530f8e7706a699c44dc6fcb1cb
[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" "715c6df09c46243e57a8e49f7d384786c4d849530f8e7706a699c44dc6fcb1cb", kill_on_drop: false }`
[INFO] [stderr]    Compiling glob v0.3.0
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling version_check v0.9.4
[INFO] [stderr]    Compiling proc-macro2 v1.0.39
[INFO] [stderr]    Compiling libc v0.2.126
[INFO] [stderr]    Compiling unicode-ident v1.0.0
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling regex-syntax v0.6.26
[INFO] [stderr]    Compiling bindgen v0.58.1
[INFO] [stderr]    Compiling bitflags v1.3.2
[INFO] [stderr]    Compiling shlex v1.1.0
[INFO] [stderr]    Compiling rustc-hash v1.1.0
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling peeking_take_while v0.1.2
[INFO] [stderr]    Compiling lazycell v1.3.0
[INFO] [stderr]    Compiling cc v1.0.73
[INFO] [stderr]    Compiling dunce v1.0.2
[INFO] [stderr]    Compiling libloading v0.7.3
[INFO] [stderr]    Compiling nom v5.1.2
[INFO] [stderr]    Compiling clang-sys v1.3.3
[INFO] [stderr]    Compiling quote v1.0.18
[INFO] [stderr]    Compiling regex v1.5.6
[INFO] [stderr]    Compiling cexpr v0.4.0
[INFO] [stderr]    Compiling creachadair-imath-sys v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr] warning: /opt/rustwide/workdir/vendor/imath/imath.c: In function 's_realloc':
[INFO] [stderr] warning: /opt/rustwide/workdir/vendor/imath/imath.c:1700:51: warning: unused parameter 'osize' [-Wunused-parameter]
[INFO] [stderr] warning:  1700 | static mp_digit *s_realloc(mp_digit *old, mp_size osize, mp_size nsize) {
[INFO] [stderr] warning:       |                                           ~~~~~~~~^~~~~
[INFO] [stderr]  Documenting creachadair-imath-sys v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 55.90s
[INFO] running `Command { std: "docker" "inspect" "715c6df09c46243e57a8e49f7d384786c4d849530f8e7706a699c44dc6fcb1cb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "715c6df09c46243e57a8e49f7d384786c4d849530f8e7706a699c44dc6fcb1cb", kill_on_drop: false }`
[INFO] [stdout] 715c6df09c46243e57a8e49f7d384786c4d849530f8e7706a699c44dc6fcb1cb