[INFO] cloning repository https://github.com/fzyzcjy/experiment_backtrace
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/fzyzcjy/experiment_backtrace" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffzyzcjy%2Fexperiment_backtrace", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffzyzcjy%2Fexperiment_backtrace'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4da22c72bb46fe9a28191c19be6392a15e22cd94
[INFO] documenting fzyzcjy/experiment_backtrace against 1.61.0 for beta-1.62-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffzyzcjy%2Fexperiment_backtrace" "/workspace/builds/worker-34/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-34/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/fzyzcjy/experiment_backtrace 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 git repo https://github.com/fzyzcjy/experiment_backtrace
[INFO] finished tweaking git repo https://github.com/fzyzcjy/experiment_backtrace
[INFO] tweaked toml for git repo https://github.com/fzyzcjy/experiment_backtrace written to /workspace/builds/worker-34/source/Cargo.toml
[INFO] crate git repo https://github.com/fzyzcjy/experiment_backtrace already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-34/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-34/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] [stdout] bb9a972f9645d7d2fa63baee5373e553dcb90590aee9fdf67d59ae2c52222d26
[INFO] running `Command { std: "docker" "start" "-a" "bb9a972f9645d7d2fa63baee5373e553dcb90590aee9fdf67d59ae2c52222d26", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bb9a972f9645d7d2fa63baee5373e553dcb90590aee9fdf67d59ae2c52222d26", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bb9a972f9645d7d2fa63baee5373e553dcb90590aee9fdf67d59ae2c52222d26", kill_on_drop: false }`
[INFO] [stdout] bb9a972f9645d7d2fa63baee5373e553dcb90590aee9fdf67d59ae2c52222d26
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-34/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-34/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] 780c7fe260ba3f976603ab658df22ccc20b29c26b882711228c556f0c0a257ac
[INFO] running `Command { std: "docker" "start" "-a" "780c7fe260ba3f976603ab658df22ccc20b29c26b882711228c556f0c0a257ac", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.103
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]     Checking gimli v0.25.0
[INFO] [stderr]    Compiling anyhow v1.0.44
[INFO] [stderr]     Checking rustc-demangle v0.1.21
[INFO] [stderr]    Compiling backtrace v0.3.61
[INFO] [stderr]     Checking object v0.26.2
[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]     Checking addr2line v0.16.0
[INFO] [stderr]  Documenting experiment_backtrace v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.69s
[INFO] running `Command { std: "docker" "inspect" "780c7fe260ba3f976603ab658df22ccc20b29c26b882711228c556f0c0a257ac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "780c7fe260ba3f976603ab658df22ccc20b29c26b882711228c556f0c0a257ac", kill_on_drop: false }`
[INFO] [stdout] 780c7fe260ba3f976603ab658df22ccc20b29c26b882711228c556f0c0a257ac