[INFO] fetching crate fourleaf 0.1.1...
[INFO] documenting fourleaf-0.1.1 against beta-2020-08-29 for beta-1.47-rustdoc-1
[INFO] extracting crate fourleaf 0.1.1 into /workspace/builds/worker-9/source
[INFO] validating manifest of crates.io crate fourleaf 0.1.1 on toolchain beta-2020-08-29
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate fourleaf 0.1.1
[INFO] finished tweaking crates.io crate fourleaf 0.1.1
[INFO] tweaked toml for crates.io crate fourleaf 0.1.1 written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "+beta-2020-08-29" "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] 5cadcf3cbfbfaeb11a1a30b26c5d1f822a25fce2ea1de1e727f29e4fdd7fbe90
[INFO] running `Command { std: "docker" "start" "-a" "5cadcf3cbfbfaeb11a1a30b26c5d1f822a25fce2ea1de1e727f29e4fdd7fbe90", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5cadcf3cbfbfaeb11a1a30b26c5d1f822a25fce2ea1de1e727f29e4fdd7fbe90", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5cadcf3cbfbfaeb11a1a30b26c5d1f822a25fce2ea1de1e727f29e4fdd7fbe90", kill_on_drop: false }`
[INFO] [stdout] 5cadcf3cbfbfaeb11a1a30b26c5d1f822a25fce2ea1de1e727f29e4fdd7fbe90
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "+beta-2020-08-29" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 722c54be87ff6b9bb497c23ef7fed13ef24b976b8e703cfa77230a9d7cb28dc1
[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" "722c54be87ff6b9bb497c23ef7fed13ef24b976b8e703cfa77230a9d7cb28dc1", kill_on_drop: false }`
[INFO] [stderr]  Documenting fourleaf v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/sugar.rs:453:11
[INFO] [stdout]     |
[INFO] [stdout] 453 |           )*;
[INFO] [stdout]     |             ^ help: remove this semicolon
[INFO] [stdout]     | 
[INFO] [stdout]    ::: src/retrofit.rs:20:1
[INFO] [stdout]     |
[INFO] [stdout] 20  | / fourleaf_retrofit!(struct Ipv4Addr : {} {} {
[INFO] [stdout] 21  | |     |_context, this|
[INFO] [stdout] 22  | |     (*) octets: [u8;4] = this.octets(),
[INFO] [stdout] 23  | |     { Ok(Ipv4Addr::new(octets[0], octets[1], octets[2], octets[3])) }
[INFO] [stdout] 24  | | });
[INFO] [stdout]     | |___- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/sugar.rs:453:11
[INFO] [stdout]     |
[INFO] [stdout] 453 |           )*;
[INFO] [stdout]     |             ^ help: remove this semicolon
[INFO] [stdout]     | 
[INFO] [stdout]    ::: src/retrofit.rs:27:1
[INFO] [stdout]     |
[INFO] [stdout] 27  | / fourleaf_retrofit!(struct Ipv6Addr : {} {} {
[INFO] [stdout] 28  | |     |_context, this|
[INFO] [stdout] 29  | |     (*) octets: [u8;16] = this.octets(),
[INFO] [stdout] 30  | |     { {
[INFO] [stdout] ...   |
[INFO] [stdout] 38  | |     } }
[INFO] [stdout] 39  | | });
[INFO] [stdout]     | |___- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/sugar.rs:453:11
[INFO] [stdout]     |
[INFO] [stdout] 453 |           )*;
[INFO] [stdout]     |             ^ help: remove this semicolon
[INFO] [stdout]     | 
[INFO] [stdout]    ::: src/retrofit.rs:41:1
[INFO] [stdout]     |
[INFO] [stdout] 41  | / fourleaf_retrofit!(enum IpAddr : {} {} {
[INFO] [stdout] 42  | |     |_context|
[INFO] [stdout] 43  | |     [4] IpAddr::V4(ip) => {
[INFO] [stdout] 44  | |         (*) ip: Ipv4Addr = ip,
[INFO] [stdout] ...   |
[INFO] [stdout] 50  | |     },
[INFO] [stdout] 51  | | });
[INFO] [stdout]     | |___- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/sugar.rs:453:11
[INFO] [stdout]     |
[INFO] [stdout] 453 |           )*;
[INFO] [stdout]     |             ^ help: remove this semicolon
[INFO] [stdout]     | 
[INFO] [stdout]    ::: src/retrofit.rs:41:1
[INFO] [stdout]     |
[INFO] [stdout] 41  | / fourleaf_retrofit!(enum IpAddr : {} {} {
[INFO] [stdout] 42  | |     |_context|
[INFO] [stdout] 43  | |     [4] IpAddr::V4(ip) => {
[INFO] [stdout] 44  | |         (*) ip: Ipv4Addr = ip,
[INFO] [stdout] ...   |
[INFO] [stdout] 50  | |     },
[INFO] [stdout] 51  | | });
[INFO] [stdout]     | |___- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/sugar.rs:453:11
[INFO] [stdout]     |
[INFO] [stdout] 453 |           )*;
[INFO] [stdout]     |             ^ help: remove this semicolon
[INFO] [stdout]     | 
[INFO] [stdout]    ::: src/retrofit.rs:53:1
[INFO] [stdout]     |
[INFO] [stdout] 53  | / fourleaf_retrofit!(struct Duration : {} {} {
[INFO] [stdout] 54  | |     |context, this|
[INFO] [stdout] 55  | |     [1] secs: u64 = this.as_secs(),
[INFO] [stdout] 56  | |     [2] nsecs: u32 = this.subsec_nanos(),
[INFO] [stdout] ...   |
[INFO] [stdout] 62  | |     } }
[INFO] [stdout] 63  | | });
[INFO] [stdout]     | |___- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/sugar.rs:453:11
[INFO] [stdout]     |
[INFO] [stdout] 453 |           )*;
[INFO] [stdout]     |             ^ help: remove this semicolon
[INFO] [stdout]     | 
[INFO] [stdout]    ::: src/retrofit.rs:65:1
[INFO] [stdout]     |
[INFO] [stdout] 65  | / fourleaf_retrofit!(struct SocketAddrV4 : {} {} {
[INFO] [stdout] 66  | |     |_context, this|
[INFO] [stdout] 67  | |     [1] ip: Ipv4Addr = this.ip(),
[INFO] [stdout] 68  | |     [2] port: u16 = this.port(),
[INFO] [stdout] 69  | |     { Ok(SocketAddrV4::new(ip, port)) }
[INFO] [stdout] 70  | | });
[INFO] [stdout]     | |___- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/sugar.rs:453:11
[INFO] [stdout]     |
[INFO] [stdout] 453 |           )*;
[INFO] [stdout]     |             ^ help: remove this semicolon
[INFO] [stdout]     | 
[INFO] [stdout]    ::: src/retrofit.rs:72:1
[INFO] [stdout]     |
[INFO] [stdout] 72  | / fourleaf_retrofit!(struct SocketAddrV6 : {} {} {
[INFO] [stdout] 73  | |     |_context, this|
[INFO] [stdout] 74  | |     [1] ip: Ipv6Addr = this.ip(),
[INFO] [stdout] 75  | |     [2] port: u16 = this.port(),
[INFO] [stdout] ...   |
[INFO] [stdout] 78  | |     { Ok(SocketAddrV6::new(ip, port, flowinfo, scope_id)) }
[INFO] [stdout] 79  | | });
[INFO] [stdout]     | |___- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/sugar.rs:453:11
[INFO] [stdout]     |
[INFO] [stdout] 453 |           )*;
[INFO] [stdout]     |             ^ help: remove this semicolon
[INFO] [stdout]     | 
[INFO] [stdout]    ::: src/retrofit.rs:81:1
[INFO] [stdout]     |
[INFO] [stdout] 81  | / fourleaf_retrofit!(enum SocketAddr : {} {} {
[INFO] [stdout] 82  | |     |_context|
[INFO] [stdout] 83  | |     [4] SocketAddr::V4(v4) => {
[INFO] [stdout] 84  | |         (*) v4: SocketAddrV4 = v4,
[INFO] [stdout] ...   |
[INFO] [stdout] 90  | |     },
[INFO] [stdout] 91  | | });
[INFO] [stdout]     | |___- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/sugar.rs:453:11
[INFO] [stdout]     |
[INFO] [stdout] 453 |           )*;
[INFO] [stdout]     |             ^ help: remove this semicolon
[INFO] [stdout]     | 
[INFO] [stdout]    ::: src/retrofit.rs:81:1
[INFO] [stdout]     |
[INFO] [stdout] 81  | / fourleaf_retrofit!(enum SocketAddr : {} {} {
[INFO] [stdout] 82  | |     |_context|
[INFO] [stdout] 83  | |     [4] SocketAddr::V4(v4) => {
[INFO] [stdout] 84  | |         (*) v4: SocketAddrV4 = v4,
[INFO] [stdout] ...   |
[INFO] [stdout] 90  | |     },
[INFO] [stdout] 91  | | });
[INFO] [stdout]     | |___- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/sugar.rs:453:11
[INFO] [stdout]     |
[INFO] [stdout] 453 |           )*;
[INFO] [stdout]     |             ^ help: remove this semicolon
[INFO] [stdout]     | 
[INFO] [stdout]    ::: src/retrofit.rs:93:1
[INFO] [stdout]     |
[INFO] [stdout] 93  | / fourleaf_retrofit!(enum Result : {
[INFO] [stdout] 94  | |     impl<T : ser::Serialize, E : ser::Serialize>
[INFO] [stdout] 95  | |     ser::Serialize for Result<T, E>
[INFO] [stdout] 96  | | } {
[INFO] [stdout] ...   |
[INFO] [stdout] 109 | |     },
[INFO] [stdout] 110 | | });
[INFO] [stdout]     | |___- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/sugar.rs:453:11
[INFO] [stdout]     |
[INFO] [stdout] 453 |           )*;
[INFO] [stdout]     |             ^ help: remove this semicolon
[INFO] [stdout]     | 
[INFO] [stdout]    ::: src/retrofit.rs:93:1
[INFO] [stdout]     |
[INFO] [stdout] 93  | / fourleaf_retrofit!(enum Result : {
[INFO] [stdout] 94  | |     impl<T : ser::Serialize, E : ser::Serialize>
[INFO] [stdout] 95  | |     ser::Serialize for Result<T, E>
[INFO] [stdout] 96  | | } {
[INFO] [stdout] ...   |
[INFO] [stdout] 109 | |     },
[INFO] [stdout] 110 | | });
[INFO] [stdout]     | |___- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 11 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.74s
[INFO] running `Command { std: "docker" "inspect" "722c54be87ff6b9bb497c23ef7fed13ef24b976b8e703cfa77230a9d7cb28dc1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "722c54be87ff6b9bb497c23ef7fed13ef24b976b8e703cfa77230a9d7cb28dc1", kill_on_drop: false }`
[INFO] [stdout] 722c54be87ff6b9bb497c23ef7fed13ef24b976b8e703cfa77230a9d7cb28dc1