[INFO] fetching crate bunt-macros 0.2.5...
[INFO] documenting bunt-macros-0.2.5 against 1.61.0 for beta-1.62-rustdoc-1
[INFO] extracting crate bunt-macros 0.2.5 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate bunt-macros 0.2.5 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 bunt-macros 0.2.5
[INFO] finished tweaking crates.io crate bunt-macros 0.2.5
[INFO] tweaked toml for crates.io crate bunt-macros 0.2.5 written to /workspace/builds/worker-2/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]  Downloading crates ...
[INFO] [stderr]   Downloaded litrs v0.2.3
[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" "+1.61.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1e44f0bc931685582a654f195a8d8c35ef2682f8b28429eb073bdfcfc8a7b15c
[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" "1e44f0bc931685582a654f195a8d8c35ef2682f8b28429eb073bdfcfc8a7b15c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1e44f0bc931685582a654f195a8d8c35ef2682f8b28429eb073bdfcfc8a7b15c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1e44f0bc931685582a654f195a8d8c35ef2682f8b28429eb073bdfcfc8a7b15c", kill_on_drop: false }`
[INFO] [stdout] 1e44f0bc931685582a654f195a8d8c35ef2682f8b28429eb073bdfcfc8a7b15c
[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" "+1.61.0" "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] 8369d6f30f0ffdf26c5026e567783d5b63f6aaff16db1a2fa6f87041d0010ad9
[INFO] running `Command { std: "docker" "start" "-a" "8369d6f30f0ffdf26c5026e567783d5b63f6aaff16db1a2fa6f87041d0010ad9", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.39
[INFO] [stderr]     Checking unicode-ident v1.0.0
[INFO] [stderr]     Checking unicode-xid v0.2.3
[INFO] [stderr]     Checking litrs v0.2.3
[INFO] [stderr]     Checking quote v1.0.18
[INFO] [stderr]  Documenting bunt-macros v0.2.5 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.23s
[INFO] running `Command { std: "docker" "inspect" "8369d6f30f0ffdf26c5026e567783d5b63f6aaff16db1a2fa6f87041d0010ad9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8369d6f30f0ffdf26c5026e567783d5b63f6aaff16db1a2fa6f87041d0010ad9", kill_on_drop: false }`
[INFO] [stdout] 8369d6f30f0ffdf26c5026e567783d5b63f6aaff16db1a2fa6f87041d0010ad9
[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" "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" "--" "-Z" "unstable-options" "--document-private-items", kill_on_drop: false }`
[INFO] [stdout] b4be39747942381c2971c4a7ca39289bd95abac5ee4a74eeb73d5af7458eb284
[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" "b4be39747942381c2971c4a7ca39289bd95abac5ee4a74eeb73d5af7458eb284", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.39
[INFO] [stderr]     Checking unicode-ident v1.0.0
[INFO] [stderr]     Checking unicode-xid v0.2.3
[INFO] [stderr]     Checking quote v1.0.18
[INFO] [stderr]     Checking litrs v0.2.3
[INFO] [stdout] error[E0599]: no method named `unwrap` found for struct `proc_macro2::Span` in the current scope
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/litrs-0.2.3/src/err.rs:23:31
[INFO] [stdout]    |
[INFO] [stdout] 23 |             Span::Two(s) => s.unwrap(),
[INFO] [stdout]    |                               ^^^^^^ method not found in `proc_macro2::Span`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/litrs-0.2.3/src/err.rs:47:53
[INFO] [stdout]    |
[INFO] [stdout] 47 |             Span::One(s) => proc_macro2::Span::from(s),
[INFO] [stdout]    |                                                     ^ expected struct `proc_macro2::Span`, found struct `proc_macro::Span`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0308, E0599.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `litrs` due to 3 previous errors
[INFO] running `Command { std: "docker" "inspect" "b4be39747942381c2971c4a7ca39289bd95abac5ee4a74eeb73d5af7458eb284", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b4be39747942381c2971c4a7ca39289bd95abac5ee4a74eeb73d5af7458eb284", kill_on_drop: false }`
[INFO] [stdout] b4be39747942381c2971c4a7ca39289bd95abac5ee4a74eeb73d5af7458eb284