[INFO] fetching crate testing 0.12.0...
[INFO] documenting testing-0.12.0 against 1.54.0 for beta-1.55-rustdoc-1
[INFO] extracting crate testing 0.12.0 into /workspace/builds/worker-74/source
[INFO] validating manifest of crates.io crate testing 0.12.0 on toolchain 1.54.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate testing 0.12.0
[INFO] finished tweaking crates.io crate testing 0.12.0
[INFO] tweaked toml for crates.io crate testing 0.12.0 written to /workspace/builds/worker-74/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "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-74/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-74/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] cedd0f73ae2c96351b1d96f19b1f6e5b2b0f74dc2a137e846781273250fdc96d
[INFO] running `Command { std: "docker" "start" "-a" "cedd0f73ae2c96351b1d96f19b1f6e5b2b0f74dc2a137e846781273250fdc96d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cedd0f73ae2c96351b1d96f19b1f6e5b2b0f74dc2a137e846781273250fdc96d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cedd0f73ae2c96351b1d96f19b1f6e5b2b0f74dc2a137e846781273250fdc96d", kill_on_drop: false }`
[INFO] [stdout] cedd0f73ae2c96351b1d96f19b1f6e5b2b0f74dc2a137e846781273250fdc96d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-74/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-74/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 20b63a5983be25a5392983851e24b73d81cb363dc2b9afa98f4153259001187a
[INFO] running `Command { std: "docker" "start" "-a" "20b63a5983be25a5392983851e24b73d81cb363dc2b9afa98f4153259001187a", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.65
[INFO] [stderr]    Compiling memchr v2.4.0
[INFO] [stderr]    Compiling strsim v0.9.3
[INFO] [stderr]    Compiling libc v0.2.98
[INFO] [stderr]    Compiling ident_case v1.0.1
[INFO] [stderr]    Compiling fnv v1.0.7
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]     Checking siphasher v0.3.6
[INFO] [stderr]     Checking either v1.6.1
[INFO] [stderr]     Checking new_debug_unreachable v1.0.4
[INFO] [stderr]     Checking precomputed-hash v0.1.1
[INFO] [stderr]     Checking stable_deref_trait v1.2.0
[INFO] [stderr]    Compiling glob v0.3.0
[INFO] [stderr]     Checking difference v2.0.0
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]    Compiling relative-path v1.5.0
[INFO] [stderr]     Checking ansi_term v0.12.1
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling num-bigint v0.2.6
[INFO] [stderr]     Checking humantime v1.3.0
[INFO] [stderr]     Checking fxhash v0.2.1
[INFO] [stderr]    Compiling anyhow v1.0.42
[INFO] [stderr]     Checking owning_ref v0.4.1
[INFO] [stderr]     Checking phf_shared v0.8.0
[INFO] [stderr]     Checking pretty_assertions v0.6.1
[INFO] [stderr]     Checking aho-corasick v0.7.18
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]    Compiling regex v1.5.4
[INFO] [stderr]    Compiling pmutil v0.5.3
[INFO] [stderr]    Compiling darling_core v0.10.2
[INFO] [stderr]    Compiling swc_macros_common v0.3.3
[INFO] [stderr]     Checking env_logger v0.7.1
[INFO] [stderr]    Compiling Inflector v0.11.4
[INFO] [stderr]    Compiling serde_derive v1.0.127
[INFO] [stderr]    Compiling from_variant v0.1.3
[INFO] [stderr]    Compiling swc_eq_ignore_macros v0.1.0
[INFO] [stderr]    Compiling swc_visit_macros v0.2.3
[INFO] [stderr]    Compiling testing_macros v0.2.1
[INFO] [stderr]    Compiling darling_macro v0.10.2
[INFO] [stderr]    Compiling darling v0.10.2
[INFO] [stderr]    Compiling ast_node v0.7.3
[INFO] [stderr]     Checking swc_visit v0.2.5
[INFO] [stderr]     Checking serde v1.0.127
[INFO] [stderr]     Checking string_cache v0.8.1
[INFO] [stderr]     Checking swc_common v0.11.4
[INFO] [stderr]  Documenting testing v0.12.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(test)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: Compilation failed, aborting rustdoc
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not document `testing`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type lib --crate-name testing src/lib.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi --document-private-items -L dependency=/opt/rustwide/target/debug/deps --extern ansi_term=/opt/rustwide/target/debug/deps/libansi_term-fd7abddf7181542f.rmeta --extern difference=/opt/rustwide/target/debug/deps/libdifference-cb994b442a2f4f36.rmeta --extern env_logger=/opt/rustwide/target/debug/deps/libenv_logger-05278d9a8f10c56e.rmeta --extern log=/opt/rustwide/target/debug/deps/liblog-f8abb66ffc16068c.rmeta --extern once_cell=/opt/rustwide/target/debug/deps/libonce_cell-1b80003de675d828.rmeta --extern pretty_assertions=/opt/rustwide/target/debug/deps/libpretty_assertions-a7b2b7fd466aa9e8.rmeta --extern regex=/opt/rustwide/target/debug/deps/libregex-46bf5b535d6b6b09.rmeta --extern swc_common=/opt/rustwide/target/debug/deps/libswc_common-be7953eb237fe004.rmeta --extern testing_macros=/opt/rustwide/target/debug/deps/libtesting_macros-3575b705609d7156.so --cap-lints=warn --crate-version 0.12.0` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "20b63a5983be25a5392983851e24b73d81cb363dc2b9afa98f4153259001187a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "20b63a5983be25a5392983851e24b73d81cb363dc2b9afa98f4153259001187a", kill_on_drop: false }`
[INFO] [stdout] 20b63a5983be25a5392983851e24b73d81cb363dc2b9afa98f4153259001187a
