[INFO] fetching crate qmc 2.20.0...
[INFO] documenting qmc-2.20.0 against beta-2022-05-20 for beta-1.62-rustdoc-1
[INFO] extracting crate qmc 2.20.0 into /workspace/builds/worker-19/source
[INFO] validating manifest of crates.io crate qmc 2.20.0 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] started tweaking crates.io crate qmc 2.20.0
[INFO] finished tweaking crates.io crate qmc 2.20.0
[INFO] tweaked toml for crates.io crate qmc 2.20.0 written to /workspace/builds/worker-19/source/Cargo.toml
[INFO] crate crates.io crate qmc 2.20.0 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-19/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-19/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] 66f180bd47e90fa20b2ff47af73c942b238231d569a7745981f95928353c8f2c
[INFO] running `Command { std: "docker" "start" "-a" "66f180bd47e90fa20b2ff47af73c942b238231d569a7745981f95928353c8f2c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "66f180bd47e90fa20b2ff47af73c942b238231d569a7745981f95928353c8f2c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "66f180bd47e90fa20b2ff47af73c942b238231d569a7745981f95928353c8f2c", kill_on_drop: false }`
[INFO] [stdout] 66f180bd47e90fa20b2ff47af73c942b238231d569a7745981f95928353c8f2c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-19/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-19/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] 9db614c3256b49e5d3132afe2b6652fcf6fc3a1b478dd64021dabb4283a4fabe
[INFO] running `Command { std: "docker" "start" "-a" "9db614c3256b49e5d3132afe2b6652fcf6fc3a1b478dd64021dabb4283a4fabe", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.104
[INFO] [stderr]     Checking ppv-lite86 v0.2.14
[INFO] [stderr]     Checking getrandom v0.2.3
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.4
[INFO] [stderr]  Documenting qmc v2.20.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.82s
[INFO] running `Command { std: "docker" "inspect" "9db614c3256b49e5d3132afe2b6652fcf6fc3a1b478dd64021dabb4283a4fabe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9db614c3256b49e5d3132afe2b6652fcf6fc3a1b478dd64021dabb4283a4fabe", kill_on_drop: false }`
[INFO] [stdout] 9db614c3256b49e5d3132afe2b6652fcf6fc3a1b478dd64021dabb4283a4fabe
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-19/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-19/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" "+beta-2022-05-20" "rustdoc" "--lib" "-Zrustdoc-map" "--frozen" "--message-format=json" "--" "-Z" "unstable-options" "--document-private-items", kill_on_drop: false }`
[INFO] [stdout] 3cd3cfa123017315a52b7d3b2a8e15040975f8090564be313f564229cd9d05ce
[INFO] running `Command { std: "docker" "start" "-a" "3cd3cfa123017315a52b7d3b2a8e15040975f8090564be313f564229cd9d05ce", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.104
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking ppv-lite86 v0.2.14
[INFO] [stderr]     Checking smallvec v1.7.0
[INFO] [stderr]     Checking getrandom v0.2.3
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.4
[INFO] [stderr]  Documenting qmc v2.20.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.04s
[INFO] running `Command { std: "docker" "inspect" "3cd3cfa123017315a52b7d3b2a8e15040975f8090564be313f564229cd9d05ce", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3cd3cfa123017315a52b7d3b2a8e15040975f8090564be313f564229cd9d05ce", kill_on_drop: false }`
[INFO] [stdout] 3cd3cfa123017315a52b7d3b2a8e15040975f8090564be313f564229cd9d05ce