[INFO] cloning repository https://github.com/euank/chrony-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/euank/chrony-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Feuank%2Fchrony-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Feuank%2Fchrony-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 6836bcbb8c0f38e850a4e6dd0ab2a7628a1d0e78
[INFO] documenting euank/chrony-rs against 1.61.0 for beta-1.62-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Feuank%2Fchrony-rs" "/workspace/builds/worker-1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/euank/chrony-rs on toolchain 1.61.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/euank/chrony-rs
[INFO] finished tweaking git repo https://github.com/euank/chrony-rs
[INFO] tweaked toml for git repo https://github.com/euank/chrony-rs written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/euank/chrony-rs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded caps v0.3.4
[INFO] [stderr]   Downloaded c2rust-asm-casts v0.1.1
[INFO] [stderr]   Downloaded c2rust-bitfields-derive v0.2.0
[INFO] [stderr]   Downloaded c2rust-bitfields v0.3.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "+1.61.0" "metadata" "--no-deps" "--format-version=1", 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] 2bcc7861f7bbe2c6b0bc51d80e6e34fe3e3744548892cebe3db99451df4ce095
[INFO] running `Command { std: "docker" "start" "-a" "2bcc7861f7bbe2c6b0bc51d80e6e34fe3e3744548892cebe3db99451df4ce095", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2bcc7861f7bbe2c6b0bc51d80e6e34fe3e3744548892cebe3db99451df4ce095", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2bcc7861f7bbe2c6b0bc51d80e6e34fe3e3744548892cebe3db99451df4ce095", kill_on_drop: false }`
[INFO] [stdout] 2bcc7861f7bbe2c6b0bc51d80e6e34fe3e3744548892cebe3db99451df4ce095
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "+1.61.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--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] 6a71af71c05821142c4519bb2bae624408ac90a076d7182bc5732bc609236ab1
[INFO] running `Command { std: "docker" "start" "-a" "6a71af71c05821142c4519bb2bae624408ac90a076d7182bc5732bc609236ab1", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.66
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling memchr v2.3.2
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]     Checking regex-syntax v0.6.14
[INFO] [stderr]    Compiling anyhow v1.0.26
[INFO] [stderr]    Compiling nix v0.17.0
[INFO] [stderr]     Checking termcolor v1.1.0
[INFO] [stderr]     Checking c2rust-asm-casts v0.1.1
[INFO] [stderr]    Compiling error-chain v0.12.2
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]     Checking humantime v1.3.0
[INFO] [stderr]     Checking log v0.4.8
[INFO] [stderr]     Checking aho-corasick v0.7.8
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]     Checking regex v1.3.4
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking errno v0.2.4
[INFO] [stderr]     Checking caps v0.3.4
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_chacha v0.2.1
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking env_logger v0.7.1
[INFO] [stderr]    Compiling c2rust-bitfields-derive v0.2.0
[INFO] [stderr]     Checking c2rust-bitfields v0.3.0
[INFO] [stderr]  Documenting chrony-rs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]  --> src/main.rs:4:17
[INFO] [stdout]   |
[INFO] [stdout] 4 | #![feature(asm, const_raw_ptr_to_usize_cast, extern_types, label_break_value, main,
[INFO] [stdout]   |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^ feature has been removed
[INFO] [stdout]   |
[INFO] [stdout]   = note: at compile-time, pointers do not have an integer value, so these casts cannot be properly supported
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]  --> src/main.rs:4:79
[INFO] [stdout]   |
[INFO] [stdout] 4 | #![feature(asm, const_raw_ptr_to_usize_cast, extern_types, label_break_value, main,
[INFO] [stdout]   |                                                                               ^^^^ feature has been removed
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find macro `asm` in this scope
[INFO] [stdout]     --> src/sched.rs:1069:21
[INFO] [stdout]      |
[INFO] [stdout] 1069 |                     asm!("cld; rep; stosq" : "={cx}" (fresh3), "={di}"
[INFO] [stdout]      |                     ^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: consider importing one of these items:
[INFO] [stdout]              std::arch::asm
[INFO] [stdout]              core::arch::asm
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find macro `asm` in this scope
[INFO] [stdout]     --> src/sched.rs:1111:21
[INFO] [stdout]      |
[INFO] [stdout] 1111 |                     asm!("cld; rep; stosq" : "={cx}" (fresh9), "={di}"
[INFO] [stdout]      |                     ^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: consider importing one of these items:
[INFO] [stdout]              std::arch::asm
[INFO] [stdout]              core::arch::asm
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find macro `asm` in this scope
[INFO] [stdout]     --> src/sched.rs:1153:21
[INFO] [stdout]      |
[INFO] [stdout] 1153 |                     asm!("cld; rep; stosq" : "={cx}" (fresh15), "={di}"
[INFO] [stdout]      |                     ^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: consider importing one of these items:
[INFO] [stdout]              std::arch::asm
[INFO] [stdout]              core::arch::asm
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find attribute `main` in this scope
[INFO] [stdout]     --> src/main.rs:1209:3
[INFO] [stdout]      |
[INFO] [stdout] 1209 | #[main]
[INFO] [stdout]      |   ^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: `main` is in scope, but it is a function, not an attribute
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/main.rs:4:1
[INFO] [stdout]   |
[INFO] [stdout] 4 | / #![feature(asm, const_raw_ptr_to_usize_cast, extern_types, label_break_value, main,
[INFO] [stdout] 5 | |            register_tool, ptr_wrapping_offset_from, c_variadic)]
[INFO] [stdout]   | |________________________________________________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> src/ntp_core.rs:2878:18
[INFO] [stdout]      |
[INFO] [stdout] 2878 |                  (if local_transmit.err > local_receive.err {
[INFO] [stdout]      |                  ^
[INFO] [stdout] 2879 |                       local_transmit.err
[INFO] [stdout] 2880 |                   } else { local_receive.err })
[INFO] [stdout]      |                                               ^
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout] 2878 ~                  if local_transmit.err > local_receive.err {
[INFO] [stdout] 2879 |                       local_transmit.err
[INFO] [stdout] 2880 ~                   } else { local_receive.err }
[INFO] [stdout]      |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: Compilation failed, aborting rustdoc
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 8 previous errors; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0554, E0557.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not document `chrony-rs`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type bin --crate-name chrony_rs src/main.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=4a41ba02bc2a750c -L dependency=/opt/rustwide/target/debug/deps --extern anyhow=/opt/rustwide/target/debug/deps/libanyhow-099fa5488c60d1e4.rmeta --extern c2rust_asm_casts=/opt/rustwide/target/debug/deps/libc2rust_asm_casts-375ab4b2328f38c1.rmeta --extern c2rust_bitfields=/opt/rustwide/target/debug/deps/libc2rust_bitfields-597eea1428200991.rmeta --extern caps=/opt/rustwide/target/debug/deps/libcaps-0221ec42816572c4.rmeta --extern env_logger=/opt/rustwide/target/debug/deps/libenv_logger-c6974b5423711a42.rmeta --extern libc=/opt/rustwide/target/debug/deps/liblibc-381ddf98af3411df.rmeta --extern log=/opt/rustwide/target/debug/deps/liblog-f115c091d543e6ab.rmeta --extern nix=/opt/rustwide/target/debug/deps/libnix-86a67270bf35e16d.rmeta --extern rand=/opt/rustwide/target/debug/deps/librand-b7ba172dff0bb247.rmeta --cap-lints=warn --crate-version 0.1.0` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "6a71af71c05821142c4519bb2bae624408ac90a076d7182bc5732bc609236ab1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6a71af71c05821142c4519bb2bae624408ac90a076d7182bc5732bc609236ab1", kill_on_drop: false }`
[INFO] [stdout] 6a71af71c05821142c4519bb2bae624408ac90a076d7182bc5732bc609236ab1