[INFO] fetching crate fdt-rs 0.4.2...
[INFO] checking fdt-rs-0.4.2 against master#c5fbcd35a8217a17f6b63a22217ace06cf8f5f02 for pr-86194
[INFO] extracting crate fdt-rs 0.4.2 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate fdt-rs 0.4.2 on toolchain c5fbcd35a8217a17f6b63a22217ace06cf8f5f02
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c5fbcd35a8217a17f6b63a22217ace06cf8f5f02" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate fdt-rs 0.4.2
[INFO] finished tweaking crates.io crate fdt-rs 0.4.2
[INFO] tweaked toml for crates.io crate fdt-rs 0.4.2 written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c5fbcd35a8217a17f6b63a22217ace06cf8f5f02" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c5fbcd35a8217a17f6b63a22217ace06cf8f5f02" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+c5fbcd35a8217a17f6b63a22217ace06cf8f5f02" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] beef1e229b29b003351387f33402d7fb85d5cca123fdff09d46207d3ac3fdecd
[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" "beef1e229b29b003351387f33402d7fb85d5cca123fdff09d46207d3ac3fdecd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "beef1e229b29b003351387f33402d7fb85d5cca123fdff09d46207d3ac3fdecd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "beef1e229b29b003351387f33402d7fb85d5cca123fdff09d46207d3ac3fdecd", kill_on_drop: false }`
[INFO] [stdout] beef1e229b29b003351387f33402d7fb85d5cca123fdff09d46207d3ac3fdecd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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=forbid" "-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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+c5fbcd35a8217a17f6b63a22217ace06cf8f5f02" "check" "--frozen" "--all" "--all-targets" "--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] e275c75c29cbbd2c3b5073b0273bb11465a740fcd283af4854d8f29e46b21d26
[INFO] running `Command { std: "docker" "start" "-a" "e275c75c29cbbd2c3b5073b0273bb11465a740fcd283af4854d8f29e46b21d26", kill_on_drop: false }`
[INFO] [stderr]     Checking unsafe_unwrap v0.1.0
[INFO] [stderr]     Checking endian-type-rs v0.1.4
[INFO] [stderr]     Checking static_assertions v1.1.0
[INFO] [stderr]     Checking fallible-iterator v0.2.0
[INFO] [stderr]    Compiling memoffset v0.5.6
[INFO] [stderr]    Compiling fdt-rs v0.4.2 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling syn v1.0.73
[INFO] [stderr]    Compiling num-derive v0.3.3
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]   --> src/lib.rs:27:39
[INFO] [stdout]    |
[INFO] [stdout] 27 | #![cfg_attr(RUSTC_IS_NIGHTLY, feature(external_doc))]
[INFO] [stdout]    |                                       ^^^^^^^^^^^^ feature has been removed
[INFO] [stdout]    |
[INFO] [stdout]    = note: use #[doc = include_str!("filename")] instead, which handles macro invocations
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]   --> src/lib.rs:27:39
[INFO] [stdout]    |
[INFO] [stdout] 27 | #![cfg_attr(RUSTC_IS_NIGHTLY, feature(external_doc))]
[INFO] [stdout]    |                                       ^^^^^^^^^^^^ feature has been removed
[INFO] [stdout]    |
[INFO] [stdout]    = note: use #[doc = include_str!("filename")] instead, which handles macro invocations
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0557`.
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0557`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `fdt-rs`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "e275c75c29cbbd2c3b5073b0273bb11465a740fcd283af4854d8f29e46b21d26", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e275c75c29cbbd2c3b5073b0273bb11465a740fcd283af4854d8f29e46b21d26", kill_on_drop: false }`
[INFO] [stdout] e275c75c29cbbd2c3b5073b0273bb11465a740fcd283af4854d8f29e46b21d26