[INFO] fetching crate simple-matrix 0.1.2...
[INFO] documenting simple-matrix-0.1.2 against 1.61.0 for beta-1.62-rustdoc-1
[INFO] extracting crate simple-matrix 0.1.2 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate simple-matrix 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 simple-matrix 0.1.2
[INFO] finished tweaking crates.io crate simple-matrix 0.1.2
[INFO] tweaked toml for crates.io crate simple-matrix 0.1.2 written to /workspace/builds/worker-4/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] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: the cargo feature `edition` has been stabilized in the 1.31 release and is no longer necessary to be listed in the manifest
[INFO] [stderr]   See https://doc.rust-lang.org/cargo/reference/manifest.html#the-edition-field for more information about using this feature.
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded env_logger v0.5.13
[INFO] [stderr]   Downloaded quickcheck v0.6.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] 01f398d6018285eb1eef3cf6b6c557290b24364358f69d0031cc54d10830e075
[INFO] running `Command { std: "docker" "start" "-a" "01f398d6018285eb1eef3cf6b6c557290b24364358f69d0031cc54d10830e075", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "01f398d6018285eb1eef3cf6b6c557290b24364358f69d0031cc54d10830e075", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "01f398d6018285eb1eef3cf6b6c557290b24364358f69d0031cc54d10830e075", kill_on_drop: false }`
[INFO] [stdout] 01f398d6018285eb1eef3cf6b6c557290b24364358f69d0031cc54d10830e075
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] 06f25d9a77827db0af6b047eb1d4742e2706c165dd3de8cfaca8524e29c0e8b3
[INFO] running `Command { std: "docker" "start" "-a" "06f25d9a77827db0af6b047eb1d4742e2706c165dd3de8cfaca8524e29c0e8b3", kill_on_drop: false }`
[INFO] [stderr] warning: the cargo feature `edition` has been stabilized in the 1.31 release and is no longer necessary to be listed in the manifest
[INFO] [stderr]   See https://doc.rust-lang.org/cargo/reference/manifest.html#the-edition-field for more information about using this feature.
[INFO] [stderr]  Documenting simple-matrix v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.38s
[INFO] running `Command { std: "docker" "inspect" "06f25d9a77827db0af6b047eb1d4742e2706c165dd3de8cfaca8524e29c0e8b3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "06f25d9a77827db0af6b047eb1d4742e2706c165dd3de8cfaca8524e29c0e8b3", kill_on_drop: false }`
[INFO] [stdout] 06f25d9a77827db0af6b047eb1d4742e2706c165dd3de8cfaca8524e29c0e8b3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "--" "--edition=2018" "-Z" "unstable-options" "--document-private-items", kill_on_drop: false }`
[INFO] [stdout] d11de3bdb18bdd89daac2a89d527c3e1569685d1f38781daf23ab1260d7de3be
[INFO] running `Command { std: "docker" "start" "-a" "d11de3bdb18bdd89daac2a89d527c3e1569685d1f38781daf23ab1260d7de3be", kill_on_drop: false }`
[INFO] [stderr] warning: the cargo feature `edition` has been stabilized in the 1.31 release and is no longer necessary to be listed in the manifest
[INFO] [stderr]   See https://doc.rust-lang.org/nightly/cargo/reference/manifest.html#the-edition-field for more information about using this feature.
[INFO] [stderr]  Documenting simple-matrix v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr] error: Option 'edition' given more than once
[INFO] [stderr] 
[INFO] [stderr] error: could not document `simple-matrix`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type lib --crate-name simple_matrix src/lib.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --edition=2018 -Z unstable-options --document-private-items -C metadata=ec77180900e03e4d -L dependency=/opt/rustwide/target/debug/deps --crate-version 0.1.2` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "d11de3bdb18bdd89daac2a89d527c3e1569685d1f38781daf23ab1260d7de3be", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d11de3bdb18bdd89daac2a89d527c3e1569685d1f38781daf23ab1260d7de3be", kill_on_drop: false }`
[INFO] [stdout] d11de3bdb18bdd89daac2a89d527c3e1569685d1f38781daf23ab1260d7de3be