[INFO] cloning repository https://github.com/insomnimus/mtag
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/insomnimus/mtag" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Finsomnimus%2Fmtag", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Finsomnimus%2Fmtag'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9d7e97cfc9e84c1681c1652ab2959a74ea1e8732
[INFO] documenting insomnimus/mtag against beta-2022-05-20 for beta-1.62-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Finsomnimus%2Fmtag" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/insomnimus/mtag 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 git repo https://github.com/insomnimus/mtag
[INFO] finished tweaking git repo https://github.com/insomnimus/mtag
[INFO] tweaked toml for git repo https://github.com/insomnimus/mtag written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/insomnimus/mtag 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] 62b7600fec5e3eadb631e9edb6dd44a50fa63d3b99d2bce966dea6b8cd2538a0
[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" "62b7600fec5e3eadb631e9edb6dd44a50fa63d3b99d2bce966dea6b8cd2538a0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "62b7600fec5e3eadb631e9edb6dd44a50fa63d3b99d2bce966dea6b8cd2538a0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "62b7600fec5e3eadb631e9edb6dd44a50fa63d3b99d2bce966dea6b8cd2538a0", kill_on_drop: false }`
[INFO] [stdout] 62b7600fec5e3eadb631e9edb6dd44a50fa63d3b99d2bce966dea6b8cd2538a0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] 64f75549989dab1ea4829d138c04d744fa98be7d85aa77d438035b996dfab1b1
[INFO] running `Command { std: "docker" "start" "-a" "64f75549989dab1ea4829d138c04d744fa98be7d85aa77d438035b996dfab1b1", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.97
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling hashbrown v0.11.2
[INFO] [stderr]    Compiling strsim v0.10.0
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling termcolor v1.1.2
[INFO] [stderr]    Compiling mp4ameta_proc v0.6.0
[INFO] [stderr]     Checking wild v2.0.4
[INFO] [stderr]    Compiling unicase v2.6.0
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling indexmap v1.7.0
[INFO] [stderr]     Checking mp4ameta v0.11.0
[INFO] [stderr]    Compiling os_str_bytes v6.0.0
[INFO] [stderr]     Checking terminal_size v0.1.17
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]    Compiling textwrap v0.14.2
[INFO] [stderr]     Checking clap v3.0.5
[INFO] [stderr]    Compiling clap_complete v3.0.2
[INFO] [stderr]    Compiling mtag v0.5.2 (/opt/rustwide/workdir)
[INFO] [stderr]  Documenting mtag v0.5.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 39.39s
[INFO] running `Command { std: "docker" "inspect" "64f75549989dab1ea4829d138c04d744fa98be7d85aa77d438035b996dfab1b1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "64f75549989dab1ea4829d138c04d744fa98be7d85aa77d438035b996dfab1b1", kill_on_drop: false }`
[INFO] [stdout] 64f75549989dab1ea4829d138c04d744fa98be7d85aa77d438035b996dfab1b1