[INFO] fetching crate zte 0.1.1...
[INFO] documenting zte-0.1.1 against 1.47.0 for beta-1.48-rustdoc-1
[INFO] extracting crate zte 0.1.1 into /workspace/builds/worker-11/source
[INFO] validating manifest of crates.io crate zte 0.1.1 on toolchain 1.47.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate zte 0.1.1
[INFO] finished tweaking crates.io crate zte 0.1.1
[INFO] tweaked toml for crates.io crate zte 0.1.1 written to /workspace/builds/worker-11/source/Cargo.toml
[INFO] crate crates.io crate zte 0.1.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b8f3c1470b46b4bdce2c0cb20dfaf343b30e8176ce421e0b7924b7f282b3f634
[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" "b8f3c1470b46b4bdce2c0cb20dfaf343b30e8176ce421e0b7924b7f282b3f634", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b8f3c1470b46b4bdce2c0cb20dfaf343b30e8176ce421e0b7924b7f282b3f634", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b8f3c1470b46b4bdce2c0cb20dfaf343b30e8176ce421e0b7924b7f282b3f634", kill_on_drop: false }`
[INFO] [stdout] b8f3c1470b46b4bdce2c0cb20dfaf343b30e8176ce421e0b7924b7f282b3f634
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bcf95d9f1bbaa1e207170239953293a445276ddf03fb71099011588d5821b51e
[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" "bcf95d9f1bbaa1e207170239953293a445276ddf03fb71099011588d5821b51e", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.59
[INFO] [stderr]    Compiling serde v1.0.94
[INFO] [stderr]    Compiling regex v1.1.9
[INFO] [stderr]    Compiling syn v0.15.39
[INFO] [stderr]    Compiling log v0.4.7
[INFO] [stderr]     Checking utf8parse v0.2.0
[INFO] [stderr]     Checking static_assertions v0.2.5
[INFO] [stderr]     Checking rust-ini v0.13.0
[INFO] [stderr]     Checking number_prefix v0.4.0
[INFO] [stderr]     Checking regex-syntax v0.6.8
[INFO] [stderr]    Compiling backtrace-sys v0.1.30
[INFO] [stderr]    Compiling vek v0.9.8
[INFO] [stderr]     Checking num-traits v0.1.43
[INFO] [stderr]    Compiling vte_generate_state_changes v0.1.1
[INFO] [stderr]     Checking aho-corasick v0.7.4
[INFO] [stderr]     Checking nom v4.2.3
[INFO] [stderr]     Checking vte v0.8.0
[INFO] [stderr]     Checking atty v0.2.11
[INFO] [stderr]     Checking dirs-sys v0.3.3
[INFO] [stderr]     Checking thread-id v3.3.0
[INFO] [stderr]     Checking termion v1.5.5
[INFO] [stderr]     Checking simple-logging v2.0.2
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]     Checking backtrace v0.3.32
[INFO] [stderr]     Checking directories v2.0.1
[INFO] [stderr]     Checking serde-hjson v0.8.2
[INFO] [stderr]    Compiling serde_derive v1.0.94
[INFO] [stderr]     Checking toml v0.4.10
[INFO] [stderr]     Checking serde_json v1.0.40
[INFO] [stderr]     Checking config v0.9.3
[INFO] [stderr]  Documenting zte v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/main.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(associated_type_defaults, or_patterns)]
[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 `zte`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type bin --crate-name zte src/main.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi --document-private-items -L dependency=/opt/rustwide/target/debug/deps --extern backtrace=/opt/rustwide/target/debug/deps/libbacktrace-05ffe5eb829009b4.rmeta --extern clap=/opt/rustwide/target/debug/deps/libclap-76227120153530c8.rmeta --extern config=/opt/rustwide/target/debug/deps/libconfig-cfa17e41f15bf172.rmeta --extern directories=/opt/rustwide/target/debug/deps/libdirectories-5361e86f9a538ccd.rmeta --extern lazy_static=/opt/rustwide/target/debug/deps/liblazy_static-038cd955f516928e.rmeta --extern log=/opt/rustwide/target/debug/deps/liblog-f03e73ac324ccf89.rmeta --extern number_prefix=/opt/rustwide/target/debug/deps/libnumber_prefix-a302ab988247bf14.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-76ba81d52e35409f.rmeta --extern serde_derive=/opt/rustwide/target/debug/deps/libserde_derive-74c6abd0821b0039.so --extern simple_logging=/opt/rustwide/target/debug/deps/libsimple_logging-96787f0c9252baa4.rmeta --extern termion=/opt/rustwide/target/debug/deps/libtermion-f9d09bb44a30246e.rmeta --extern vek=/opt/rustwide/target/debug/deps/libvek-5d0c138a32eb61a2.rmeta --extern vte=/opt/rustwide/target/debug/deps/libvte-4786b7eea705eb94.rmeta --cap-lints=warn --crate-version 0.1.1` (exit code: 1)
[INFO] running `Command { std: "docker" "inspect" "bcf95d9f1bbaa1e207170239953293a445276ddf03fb71099011588d5821b51e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bcf95d9f1bbaa1e207170239953293a445276ddf03fb71099011588d5821b51e", kill_on_drop: false }`
[INFO] [stdout] bcf95d9f1bbaa1e207170239953293a445276ddf03fb71099011588d5821b51e
