[INFO] fetching crate bench-rs 0.2.4...
[INFO] documenting bench-rs-0.2.4 against beta-2022-05-20 for beta-1.62-rustdoc-1
[INFO] extracting crate bench-rs 0.2.4 into /workspace/builds/worker-10/source
[INFO] validating manifest of crates.io crate bench-rs 0.2.4 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 bench-rs 0.2.4
[INFO] finished tweaking crates.io crate bench-rs 0.2.4
[INFO] tweaked toml for crates.io crate bench-rs 0.2.4 written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-05-20" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-05-20" "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-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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] 504d4e210e450b23d4aa5b35d16f140a4136f39ed987855f3023b94ab7e93cdd
[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" "504d4e210e450b23d4aa5b35d16f140a4136f39ed987855f3023b94ab7e93cdd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "504d4e210e450b23d4aa5b35d16f140a4136f39ed987855f3023b94ab7e93cdd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "504d4e210e450b23d4aa5b35d16f140a4136f39ed987855f3023b94ab7e93cdd", kill_on_drop: false }`
[INFO] [stdout] 504d4e210e450b23d4aa5b35d16f140a4136f39ed987855f3023b94ab7e93cdd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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] 49dacc56df8feb818259433cce41cdc24abb4ae21169826beac916474e5136ae
[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" "49dacc56df8feb818259433cce41cdc24abb4ae21169826beac916474e5136ae", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.95
[INFO] [stderr]    Compiling strsim v0.9.3
[INFO] [stderr]    Compiling serde_derive v1.0.137
[INFO] [stderr]    Compiling pin-project-internal v0.4.29
[INFO] [stderr]    Compiling unicode-xid v0.2.3
[INFO] [stderr]    Compiling serde v1.0.137
[INFO] [stderr]     Checking termcolor v1.1.3
[INFO] [stderr]    Compiling litrs v0.2.3
[INFO] [stderr]    Compiling bunt-macros v0.2.5
[INFO] [stderr]     Checking bunt v0.2.6
[INFO] [stderr]    Compiling darling_core v0.10.2
[INFO] [stderr]    Compiling darling_macro v0.10.2
[INFO] [stderr]    Compiling darling v0.10.2
[INFO] [stderr]     Checking pin-project v0.4.29
[INFO] [stderr]    Compiling bencher-macro v0.1.1
[INFO] [stderr]  Documenting bench-rs v0.2.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 57.23s
[INFO] running `Command { std: "docker" "inspect" "49dacc56df8feb818259433cce41cdc24abb4ae21169826beac916474e5136ae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "49dacc56df8feb818259433cce41cdc24abb4ae21169826beac916474e5136ae", kill_on_drop: false }`
[INFO] [stdout] 49dacc56df8feb818259433cce41cdc24abb4ae21169826beac916474e5136ae
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "DOCS_RS=1" "-e" "RUSTC_BOOTSTRAP=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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 55b2365e4cb482a603ca45fb3bd301958a548d048e5176946c91372cc812baec
[INFO] running `Command { std: "docker" "start" "-a" "55b2365e4cb482a603ca45fb3bd301958a548d048e5176946c91372cc812baec", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.39
[INFO] [stderr]    Compiling unicode-ident v1.0.0
[INFO] [stderr]    Compiling syn v1.0.95
[INFO] [stderr]    Compiling ident_case v1.0.1
[INFO] [stderr]    Compiling strsim v0.9.3
[INFO] [stderr]    Compiling fnv v1.0.7
[INFO] [stderr]    Compiling pin-project-internal v0.4.29
[INFO] [stderr]    Compiling serde_derive v1.0.137
[INFO] [stderr]    Compiling serde v1.0.137
[INFO] [stderr]    Compiling unicode-xid v0.2.3
[INFO] [stderr]     Checking termcolor v1.1.3
[INFO] [stderr]    Compiling quote v1.0.18
[INFO] [stderr]    Compiling 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]     |                             arguments to this function are incorrect
[INFO] [stdout]     |
[INFO] [stdout] note: associated function defined here
[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] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "55b2365e4cb482a603ca45fb3bd301958a548d048e5176946c91372cc812baec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "55b2365e4cb482a603ca45fb3bd301958a548d048e5176946c91372cc812baec", kill_on_drop: false }`
[INFO] [stdout] 55b2365e4cb482a603ca45fb3bd301958a548d048e5176946c91372cc812baec