[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 1.47.0 for beta-1.48-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Feuank%2Fchrony-rs" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/euank/chrony-rs 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 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-4/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" "+1.47.0" "fetch" "--locked" "--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-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] 862ad9b7ad6c0f3f970495c7d5d30b2e37658e4525433b939222d69bea9c1eae
[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" "862ad9b7ad6c0f3f970495c7d5d30b2e37658e4525433b939222d69bea9c1eae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "862ad9b7ad6c0f3f970495c7d5d30b2e37658e4525433b939222d69bea9c1eae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "862ad9b7ad6c0f3f970495c7d5d30b2e37658e4525433b939222d69bea9c1eae", kill_on_drop: false }`
[INFO] [stdout] 862ad9b7ad6c0f3f970495c7d5d30b2e37658e4525433b939222d69bea9c1eae
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 250a0153b66e3d07d0e5bd6128a62436760da4a37714a1f88c90f460bd178e91
[INFO] running `Command { std: "docker" "start" "-a" "250a0153b66e3d07d0e5bd6128a62436760da4a37714a1f88c90f460bd178e91", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.66
[INFO] [stderr]    Compiling memchr v2.3.2
[INFO] [stderr]    Compiling nix v0.17.0
[INFO] [stderr]     Checking c2rust-asm-casts v0.1.1
[INFO] [stderr]    Compiling error-chain v0.12.2
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]     Checking aho-corasick v0.7.8
[INFO] [stderr]     Checking regex v1.3.4
[INFO] [stderr]     Checking getrandom v0.1.14
[INFO] [stderr]     Checking errno v0.2.4
[INFO] [stderr]     Checking atty v0.2.14
[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: the legacy LLVM-style asm! syntax is no longer supported
[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]      |  _____________________help: replace with: `llvm_asm!`
[INFO] [stdout]      | |
[INFO] [stdout] 1070 | |                          (fresh5) : "{ax}" (0 as libc::c_int), "0"
[INFO] [stdout] 1071 | |                          (c2rust_asm_casts::AsmCast::cast_in(fresh2, fresh6)),
[INFO] [stdout] 1072 | |                          "1"
[INFO] [stdout] 1073 | |                          (c2rust_asm_casts::AsmCast::cast_in(fresh4, fresh7))
[INFO] [stdout] 1074 | |                          : "memory" : "volatile");
[INFO] [stdout]      | |__________________________________________________^
[INFO] [stdout]      |
[INFO] [stdout]      = note: consider migrating to the new asm! syntax specified in RFC 2873
[INFO] [stdout]      = note: alternatively, switch to llvm_asm! to keep your code working as it is
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: the legacy LLVM-style asm! syntax is no longer supported
[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]      |  _____________________help: replace with: `llvm_asm!`
[INFO] [stdout]      | |
[INFO] [stdout] 1112 | |                          (fresh11) : "{ax}" (0 as libc::c_int), "0"
[INFO] [stdout] 1113 | |                          (c2rust_asm_casts::AsmCast::cast_in(fresh8, fresh12)),
[INFO] [stdout] 1114 | |                          "1"
[INFO] [stdout] 1115 | |                          (c2rust_asm_casts::AsmCast::cast_in(fresh10, fresh13))
[INFO] [stdout] 1116 | |                          : "memory" : "volatile");
[INFO] [stdout]      | |__________________________________________________^
[INFO] [stdout]      |
[INFO] [stdout]      = note: consider migrating to the new asm! syntax specified in RFC 2873
[INFO] [stdout]      = note: alternatively, switch to llvm_asm! to keep your code working as it is
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: the legacy LLVM-style asm! syntax is no longer supported
[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]      |  _____________________help: replace with: `llvm_asm!`
[INFO] [stdout]      | |
[INFO] [stdout] 1154 | |                          (fresh17) : "{ax}" (0 as libc::c_int), "0"
[INFO] [stdout] 1155 | |                          (c2rust_asm_casts::AsmCast::cast_in(fresh14, fresh18)),
[INFO] [stdout] 1156 | |                          "1"
[INFO] [stdout] 1157 | |                          (c2rust_asm_casts::AsmCast::cast_in(fresh16, fresh19))
[INFO] [stdout] 1158 | |                          : "memory" : "volatile");
[INFO] [stdout]      | |__________________________________________________^
[INFO] [stdout]      |
[INFO] [stdout]      = note: consider migrating to the new asm! syntax specified in RFC 2873
[INFO] [stdout]      = note: alternatively, switch to llvm_asm! to keep your code working as it is
[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] error: Compilation failed, aborting rustdoc
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 5 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 `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 --document-private-items -L dependency=/opt/rustwide/target/debug/deps --extern anyhow=/opt/rustwide/target/debug/deps/libanyhow-7ae3de6afc6348c5.rmeta --extern c2rust_asm_casts=/opt/rustwide/target/debug/deps/libc2rust_asm_casts-55dab0d3392a13d3.rmeta --extern c2rust_bitfields=/opt/rustwide/target/debug/deps/libc2rust_bitfields-4ace658fd201d83c.rmeta --extern caps=/opt/rustwide/target/debug/deps/libcaps-48adcee310c93aad.rmeta --extern env_logger=/opt/rustwide/target/debug/deps/libenv_logger-df418f7e88306fb6.rmeta --extern libc=/opt/rustwide/target/debug/deps/liblibc-3347da72e917eb44.rmeta --extern log=/opt/rustwide/target/debug/deps/liblog-1b53669f640bf8d7.rmeta --extern nix=/opt/rustwide/target/debug/deps/libnix-bd75ebeb23146f32.rmeta --extern rand=/opt/rustwide/target/debug/deps/librand-5acbee2eb6cf3a51.rmeta --cap-lints=warn --crate-version 0.1.0` (exit code: 1)
[INFO] running `Command { std: "docker" "inspect" "250a0153b66e3d07d0e5bd6128a62436760da4a37714a1f88c90f460bd178e91", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "250a0153b66e3d07d0e5bd6128a62436760da4a37714a1f88c90f460bd178e91", kill_on_drop: false }`
[INFO] [stdout] 250a0153b66e3d07d0e5bd6128a62436760da4a37714a1f88c90f460bd178e91
