[INFO] crate symtern 0.1.0 is already in cache
[INFO] documenting symtern-0.1.0 against try#66dfc4e010913fbed0c4ea91fc2c010004b0f441 for pr-73566
[INFO] extracting crate symtern 0.1.0 into /workspace/builds/worker-12/source
[INFO] validating manifest of crates.io crate symtern 0.1.0 on toolchain 66dfc4e010913fbed0c4ea91fc2c010004b0f441
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+66dfc4e010913fbed0c4ea91fc2c010004b0f441" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-12/source/.cargo/config
[INFO] started tweaking crates.io crate symtern 0.1.0
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate symtern 0.1.0
[INFO] tweaked toml for crates.io crate symtern 0.1.0 written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+66dfc4e010913fbed0c4ea91fc2c010004b0f441" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+66dfc4e010913fbed0c4ea91fc2c010004b0f441" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:819119df93c0f5eca3f29186f14981ef29945a311854d7222af07488600a2584" "/opt/rustwide/cargo-home/bin/cargo" "+66dfc4e010913fbed0c4ea91fc2c010004b0f441" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 996c31eb12d7c017ad7e8cee6dce5ac6643c101d1a31cf6ab11fe9e7ce578c12
[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" "996c31eb12d7c017ad7e8cee6dce5ac6643c101d1a31cf6ab11fe9e7ce578c12", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "996c31eb12d7c017ad7e8cee6dce5ac6643c101d1a31cf6ab11fe9e7ce578c12", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "996c31eb12d7c017ad7e8cee6dce5ac6643c101d1a31cf6ab11fe9e7ce578c12", kill_on_drop: false }`
[INFO] [stdout] 996c31eb12d7c017ad7e8cee6dce5ac6643c101d1a31cf6ab11fe9e7ce578c12
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:819119df93c0f5eca3f29186f14981ef29945a311854d7222af07488600a2584" "/opt/rustwide/cargo-home/bin/cargo" "+66dfc4e010913fbed0c4ea91fc2c010004b0f441" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f509086a2113771489d8751a2d230a7619ca50cb38dce5e154d97362549f2daa
[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" "f509086a2113771489d8751a2d230a7619ca50cb38dce5e154d97362549f2daa", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.0
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]     Checking num-traits v0.1.43
[INFO] [stderr]  Documenting symtern v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unknown attribute `compile-fail`. Did you mean `compile_fail`?
[INFO] [stdout]    --> src/traits.rs:8:1
[INFO] [stdout]     |
[INFO] [stdout] 8   | / //! Traits that define the interface for all string-interning implementations.
[INFO] [stdout] 9   | | //!
[INFO] [stdout] 10  | | //! Interners are used to provide trivially-comparable stand-ins for values
[INFO] [stdout] 11  | | //! that are not trivially comparable, and to later retrieve the value
[INFO] [stdout] ...   |
[INFO] [stdout] 161 | | //! [Resolve::Input]: trait.Resolve.html#associatedtype.Input
[INFO] [stdout] 162 | | //! [Scala's path-dependent types]: http://danielwestheide.com/blog/2013/02/13/the-neophytes-guide-to-scala-part-13-path-dependent-types.html
[INFO] [stdout]     | |_____________________________________________________________________________________________________________________________________________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(invalid_codeblock_attribute)]` on by default
[INFO] [stdout]     = help: the code block will either not be tested if not marked as a rust one or won't fail if it compiles successfully
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unknown attribute `compile-fail`. Did you mean `compile_fail`?
[INFO] [stdout]   --> src/adaptors/mod.rs:8:1
[INFO] [stdout]    |
[INFO] [stdout] 8  | / //! # Interner Adaptors
[INFO] [stdout] 9  | | //!
[INFO] [stdout] 10 | | //! Each type in this module provides some additional functionality beyond that
[INFO] [stdout] 11 | | //! of Symtern's basic interner.
[INFO] [stdout] ...  |
[INFO] [stdout] 97 | | //! [`Luma`]: struct.Luma.html
[INFO] [stdout] 98 | | //! [`Inline`]: struct.Inline.html
[INFO] [stdout]    | |__________________________________^
[INFO] [stdout]    |
[INFO] [stdout]    = help: the code block will either not be tested if not marked as a rust one or won't fail if it compiles successfully
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unknown attribute `compile-fail`. Did you mean `compile_fail`?
[INFO] [stdout]   --> src/adaptors/luma.rs:59:1
[INFO] [stdout]    |
[INFO] [stdout] 59 | / /// "Lifetime-safe" interner adaptor.
[INFO] [stdout] 60 | | ///
[INFO] [stdout] 61 | | /// This adaptor's symbols are treated as references to their source pool
[INFO] [stdout] 62 | | /// — which, thanks to Rust's borrow-checker, prevents us from dropping
[INFO] [stdout] ...  |
[INFO] [stdout] 95 | | /// let _ = pool.intern("bar").expect("failed to intern a value"); //~ PANIC already borrowed: BorrowMutError
[INFO] [stdout] 96 | | /// ```
[INFO] [stdout]    | |_______^
[INFO] [stdout]    |
[INFO] [stdout]    = help: the code block will either not be tested if not marked as a rust one or won't fail if it compiles successfully
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.94s
[INFO] running `Command { std: "docker" "inspect" "f509086a2113771489d8751a2d230a7619ca50cb38dce5e154d97362549f2daa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f509086a2113771489d8751a2d230a7619ca50cb38dce5e154d97362549f2daa", kill_on_drop: false }`
[INFO] [stdout] f509086a2113771489d8751a2d230a7619ca50cb38dce5e154d97362549f2daa