[INFO] crate bert 0.1.0 is already in cache
[INFO] testing bert-0.1.0 against beta-2020-07-24 for beta-1.46-1
[INFO] extracting crate bert 0.1.0 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate bert 0.1.0 on toolchain beta-2020-07-24
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate bert 0.1.0
[INFO] finished tweaking crates.io crate bert 0.1.0
[INFO] tweaked toml for crates.io crate bert 0.1.0 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 15188f9a3d9fbaf064abe197c95858fff22b316d07d2715b7606220640961130
[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" "15188f9a3d9fbaf064abe197c95858fff22b316d07d2715b7606220640961130", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "15188f9a3d9fbaf064abe197c95858fff22b316d07d2715b7606220640961130", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "15188f9a3d9fbaf064abe197c95858fff22b316d07d2715b7606220640961130", kill_on_drop: false }`
[INFO] [stdout] 15188f9a3d9fbaf064abe197c95858fff22b316d07d2715b7606220640961130
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8e1d6c72002046c411b1a9d3b6180ccd57b7de8f182f97bb04f2f9aa18eadec3
[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" "8e1d6c72002046c411b1a9d3b6180ccd57b7de8f182f97bb04f2f9aa18eadec3", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.0
[INFO] [stderr]    Compiling libc v0.2.74
[INFO] [stderr]    Compiling rustc-serialize v0.3.24
[INFO] [stderr]    Compiling serde v0.8.23
[INFO] [stderr]    Compiling byteorder v0.5.3
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling num-integer v0.1.43
[INFO] [stderr]    Compiling num-iter v0.1.41
[INFO] [stderr]    Compiling rand v0.4.6
[INFO] [stderr]    Compiling num-bigint v0.1.44
[INFO] [stderr]    Compiling num-complex v0.1.43
[INFO] [stderr]    Compiling num-rational v0.1.42
[INFO] [stderr]    Compiling num v0.1.42
[INFO] [stderr]    Compiling bert v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]    --> src/serializers.rs:130:13
[INFO] [stdout]     |
[INFO] [stdout] 130 |             try!(self.writer.write_all(&[*byte]))
[INFO] [stdout]     |             ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]    --> src/serializers.rs:478:17
[INFO] [stdout]     |
[INFO] [stdout] 478 |                 try!(self.writer.write_all(bert_nil_tuple.as_slice()));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]    --> src/serializers.rs:484:17
[INFO] [stdout]     |
[INFO] [stdout] 484 |                 try!(self.writer.write_all(header.as_slice()));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]    --> src/serializers.rs:505:17
[INFO] [stdout]     |
[INFO] [stdout] 505 |                 try!(self.writer.write_all(nil.as_slice()));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]    --> src/serializers.rs:767:9
[INFO] [stdout]     |
[INFO] [stdout] 767 |         try!(self.writer.write_all(header.as_slice()));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]    --> src/serializers.rs:770:13
[INFO] [stdout]     |
[INFO] [stdout] 770 |             try!(self.writer.write_all(&[*byte]))
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]    --> src/serializers.rs:815:17
[INFO] [stdout]     |
[INFO] [stdout] 815 |                 try!(self.writer.write_all(header.as_slice()));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]    --> src/serializers.rs:818:17
[INFO] [stdout]     |
[INFO] [stdout] 818 |                 try!(self.writer.write_all(structure_name_atom.as_slice()));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]    --> src/serializers.rs:831:9
[INFO] [stdout]     |
[INFO] [stdout] 831 |         try!(self.writer.write_all(header.as_slice()));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]    --> src/serializers.rs:834:9
[INFO] [stdout]     |
[INFO] [stdout] 834 |         try!(self.writer.write_all(enum_atom.as_slice()));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]    --> src/serializers.rs:837:9
[INFO] [stdout]     |
[INFO] [stdout] 837 |         try!(self.writer.write_all(variant_header.as_slice()));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]    --> src/serializers.rs:840:9
[INFO] [stdout]     |
[INFO] [stdout] 840 |         try!(self.writer.write_all(variant_atom.as_slice()));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]    --> src/serializers.rs:862:17
[INFO] [stdout]     |
[INFO] [stdout] 862 |                 try!(self.writer.write_all(bert_nil_tuple.as_slice()));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]    --> src/serializers.rs:868:17
[INFO] [stdout]     |
[INFO] [stdout] 868 |                 try!(self.writer.write_all(header.as_slice()));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]    --> src/serializers.rs:889:17
[INFO] [stdout]     |
[INFO] [stdout] 889 |                 try!(self.writer.write_all(nil.as_slice()));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]    --> src/serializers.rs:905:17
[INFO] [stdout]     |
[INFO] [stdout] 905 |                 try!(self.writer.write_all(empty_tuple.as_slice()));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]    --> src/serializers.rs:910:17
[INFO] [stdout]     |
[INFO] [stdout] 910 |                 try!(self.writer.write_all(header.as_slice()));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]    --> src/serializers.rs:916:17
[INFO] [stdout]     |
[INFO] [stdout] 916 |                 try!(self.writer.write_all(header.as_slice()));
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]    --> src/serializers.rs:942:9
[INFO] [stdout]     |
[INFO] [stdout] 942 |         try!(self.writer.write_all(header.as_slice()));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]    --> src/serializers.rs:945:9
[INFO] [stdout]     |
[INFO] [stdout] 945 |         try!(self.writer.write_all(structure_name.as_slice()));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]    --> src/serializers.rs:970:9
[INFO] [stdout]     |
[INFO] [stdout] 970 |         try!(self.writer.write_all(header.as_slice()));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]    --> src/serializers.rs:973:9
[INFO] [stdout]     |
[INFO] [stdout] 973 |         try!(self.writer.write_all(enum_name.as_slice()));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]    --> src/serializers.rs:978:9
[INFO] [stdout]     |
[INFO] [stdout] 978 |         try!(self.writer.write_all(variant_header.as_slice()));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]    --> src/serializers.rs:981:9
[INFO] [stdout]     |
[INFO] [stdout] 981 |         try!(self.writer.write_all(variant_name.as_slice()));
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]     --> src/serializers.rs:1005:9
[INFO] [stdout]      |
[INFO] [stdout] 1005 |         try!(self.writer.write_all(header.as_slice()));
[INFO] [stdout]      |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]     --> src/serializers.rs:1006:9
[INFO] [stdout]      |
[INFO] [stdout] 1006 |         try!(self.writer.write_all(bert_atom.as_slice()));
[INFO] [stdout]      |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]     --> src/serializers.rs:1007:9
[INFO] [stdout]      |
[INFO] [stdout] 1007 |         try!(self.writer.write_all(dict_atom.as_slice()));
[INFO] [stdout]      |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]     --> src/serializers.rs:1023:9
[INFO] [stdout]      |
[INFO] [stdout] 1023 |         try!(self.writer.write_all(list_header.as_slice()));
[INFO] [stdout]      |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]     --> src/serializers.rs:1034:9
[INFO] [stdout]      |
[INFO] [stdout] 1034 |         try!(self.writer.write_all(tuple_header.as_slice()));
[INFO] [stdout]      |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]     --> src/serializers.rs:1049:13
[INFO] [stdout]      |
[INFO] [stdout] 1049 |             try!(self.writer.write_all(nil_atom.as_slice()));
[INFO] [stdout]      |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]     --> src/serializers.rs:1063:17
[INFO] [stdout]      |
[INFO] [stdout] 1063 |                 try!(self.writer.write_all(header.as_slice()));
[INFO] [stdout]      |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]     --> src/serializers.rs:1064:17
[INFO] [stdout]      |
[INFO] [stdout] 1064 |                 try!(self.writer.write_all(bert_atom.as_slice()));
[INFO] [stdout]      |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]     --> src/serializers.rs:1065:17
[INFO] [stdout]      |
[INFO] [stdout] 1065 |                 try!(self.writer.write_all(time_atom.as_slice()));
[INFO] [stdout]      |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]     --> src/serializers.rs:1071:17
[INFO] [stdout]      |
[INFO] [stdout] 1071 |                 try!(self.writer.write_all(header.as_slice()));
[INFO] [stdout]      |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]     --> src/serializers.rs:1072:17
[INFO] [stdout]      |
[INFO] [stdout] 1072 |                 try!(self.writer.write_all(bert_atom.as_slice()));
[INFO] [stdout]      |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]     --> src/serializers.rs:1073:17
[INFO] [stdout]      |
[INFO] [stdout] 1073 |                 try!(self.writer.write_all(regex_atom.as_slice()));
[INFO] [stdout]      |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]     --> src/serializers.rs:1079:17
[INFO] [stdout]      |
[INFO] [stdout] 1079 |                 try!(self.writer.write_all(header.as_slice()));
[INFO] [stdout]      |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]     --> src/serializers.rs:1082:17
[INFO] [stdout]      |
[INFO] [stdout] 1082 |                 try!(self.writer.write_all(structure_name_atom.as_slice()));
[INFO] [stdout]      |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]     --> src/serializers.rs:1095:9
[INFO] [stdout]      |
[INFO] [stdout] 1095 |         try!(self.writer.write_all(header.as_slice()));
[INFO] [stdout]      |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]     --> src/serializers.rs:1098:9
[INFO] [stdout]      |
[INFO] [stdout] 1098 |         try!(self.writer.write_all(field_atom.as_slice()));
[INFO] [stdout]      |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]     --> src/serializers.rs:1115:9
[INFO] [stdout]      |
[INFO] [stdout] 1115 |         try!(self.writer.write_all(header.as_slice()));
[INFO] [stdout]      |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]     --> src/serializers.rs:1118:9
[INFO] [stdout]      |
[INFO] [stdout] 1118 |         try!(self.writer.write_all(enum_name.as_slice()));
[INFO] [stdout]      |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]     --> src/serializers.rs:1123:9
[INFO] [stdout]      |
[INFO] [stdout] 1123 |         try!(self.writer.write_all(variant_header.as_slice()));
[INFO] [stdout]      |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]     --> src/serializers.rs:1126:9
[INFO] [stdout]      |
[INFO] [stdout] 1126 |         try!(self.writer.write_all(variant_name.as_slice()));
[INFO] [stdout]      |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]     --> src/serializers.rs:1138:9
[INFO] [stdout]      |
[INFO] [stdout] 1138 |         try!(self.writer.write_all(header.as_slice()));
[INFO] [stdout]      |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]     --> src/serializers.rs:1141:9
[INFO] [stdout]      |
[INFO] [stdout] 1141 |         try!(self.writer.write_all(field_atom.as_slice()));
[INFO] [stdout]      |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]     --> src/serializers.rs:1159:5
[INFO] [stdout]      |
[INFO] [stdout] 1159 |     try!(value.serialize(&mut ser));
[INFO] [stdout]      |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]     --> src/serializers.rs:1168:5
[INFO] [stdout]      |
[INFO] [stdout] 1168 |     try!(to_writer(&mut writer, value));
[INFO] [stdout]      |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stdout]     --> src/serializers.rs:1179:16
[INFO] [stdout]      |
[INFO] [stdout] 1179 |     let data = try!(to_vec(value));
[INFO] [stdout]      |                ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/errors.rs:32:32
[INFO] [stdout]    |
[INFO] [stdout] 32 |     fn cause(&self) -> Option<&error::Error> {
[INFO] [stdout]    |                                ^^^^^^^^^^^^ help: use `dyn`: `dyn error::Error`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/serializers.rs:908:14
[INFO] [stdout]     |
[INFO] [stdout] 908 |             1...255 => {
[INFO] [stdout]     |              ^^^ help: use `..=` for an inclusive range
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(ellipsis_inclusive_range_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]   --> src/wrappers.rs:31:14
[INFO] [stdout]    |
[INFO] [stdout] 31 |             0...255 => {
[INFO] [stdout]    |              ^^^ help: use `..=` for an inclusive range
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stdout]   --> src/errors.rs:26:39
[INFO] [stdout]    |
[INFO] [stdout] 26 |             Error::Io(ref err) => err.description(),
[INFO] [stdout]    |                                       ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 53 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 17.76s
[INFO] running `Command { std: "docker" "inspect" "8e1d6c72002046c411b1a9d3b6180ccd57b7de8f182f97bb04f2f9aa18eadec3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8e1d6c72002046c411b1a9d3b6180ccd57b7de8f182f97bb04f2f9aa18eadec3", kill_on_drop: false }`
[INFO] [stdout] 8e1d6c72002046c411b1a9d3b6180ccd57b7de8f182f97bb04f2f9aa18eadec3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d1acdc4bb82be2d7ddfb6f0b789f95e1b18e79617a2732f7e23fea41e855557e
[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" "d1acdc4bb82be2d7ddfb6f0b789f95e1b18e79617a2732f7e23fea41e855557e", kill_on_drop: false }`
[INFO] [stderr]    Compiling aster v0.27.0
[INFO] [stderr]    Compiling serde_codegen v0.8.9
[INFO] [stderr]    Compiling serde_codegen_internals v0.8.9
[INFO] [stderr]    Compiling quasi v0.20.1
[INFO] [stdout] error[E0463]: can't find crate for `syntax`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/serde_codegen_internals-0.8.9/src/lib.rs:13:1
[INFO] [stdout]    |
[INFO] [stdout] 13 | extern crate syntax;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^ can't find crate
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `serde_codegen_internals`.
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0463`.
[INFO] [stdout] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error[E0463]: can't find crate for `syntax`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/quasi-0.20.1/src/lib.rs:23:1
[INFO] [stdout]    |
[INFO] [stdout] 23 | extern crate syntax;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^ can't find crate
[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 E0463`.
[INFO] [stdout] 
[INFO] [stdout] error[E0463]: can't find crate for `syntax`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/aster-0.27.0/src/lib.rs:10:1
[INFO] [stdout]    |
[INFO] [stdout] 10 | extern crate syntax;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^ can't find crate
[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 E0463`.
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "d1acdc4bb82be2d7ddfb6f0b789f95e1b18e79617a2732f7e23fea41e855557e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d1acdc4bb82be2d7ddfb6f0b789f95e1b18e79617a2732f7e23fea41e855557e", kill_on_drop: false }`
[INFO] [stdout] d1acdc4bb82be2d7ddfb6f0b789f95e1b18e79617a2732f7e23fea41e855557e