[INFO] fetching crate gron 0.4.0...
[INFO] checking gron-0.4.0 against try#f47dd4da3ae8c32c9e65d307bfe640b143e674df for pr-77526
[INFO] extracting crate gron 0.4.0 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate gron 0.4.0 on toolchain f47dd4da3ae8c32c9e65d307bfe640b143e674df
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate gron 0.4.0
[INFO] finished tweaking crates.io crate gron 0.4.0
[INFO] tweaked toml for crates.io crate gron 0.4.0 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "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-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 74a22b60eb3b6d00e966cf3d1a361fb63d70e770cf43502fd0b0456b634ff4fa
[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" "74a22b60eb3b6d00e966cf3d1a361fb63d70e770cf43502fd0b0456b634ff4fa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "74a22b60eb3b6d00e966cf3d1a361fb63d70e770cf43502fd0b0456b634ff4fa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "74a22b60eb3b6d00e966cf3d1a361fb63d70e770cf43502fd0b0456b634ff4fa", kill_on_drop: false }`
[INFO] [stdout] 74a22b60eb3b6d00e966cf3d1a361fb63d70e770cf43502fd0b0456b634ff4fa
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "RUSTFLAGS=--cap-lints=forbid" "-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" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 01fd5af571b028fc266830bfdc8aca5f2112219f1ef78b1ebf3809cb6d4ff996
[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" "01fd5af571b028fc266830bfdc8aca5f2112219f1ef78b1ebf3809cb6d4ff996", kill_on_drop: false }`
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling serde v1.0.116
[INFO] [stderr]    Compiling serde_json v1.0.58
[INFO] [stderr]     Checking itoa v0.4.6
[INFO] [stderr]     Checking rustc-serialize v0.3.24
[INFO] [stderr]     Checking gron v0.4.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/for_rustc_serialize.rs:27:33
[INFO] [stdout]    |
[INFO] [stdout] 27 |             Json::I64(value) => try!(writeln!(out, "{} = {}", namebuf, value)),
[INFO] [stdout]    |                                 ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/for_rustc_serialize.rs:28:33
[INFO] [stdout]    |
[INFO] [stdout] 28 |             Json::U64(value) => try!(writeln!(out, "{} = {}", namebuf, value)),
[INFO] [stdout]    |                                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/for_rustc_serialize.rs:29:33
[INFO] [stdout]    |
[INFO] [stdout] 29 |             Json::F64(value) => try!(writeln!(out, "{} = {}", namebuf, value)),
[INFO] [stdout]    |                                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/for_rustc_serialize.rs:31:17
[INFO] [stdout]    |
[INFO] [stdout] 31 |                 try!(writeln!(out, "{} = {:?}", namebuf, value));
[INFO] [stdout]    |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/for_rustc_serialize.rs:33:37
[INFO] [stdout]    |
[INFO] [stdout] 33 |             Json::Boolean(value) => try!(writeln!(out, "{} = {}", namebuf, value)),
[INFO] [stdout]    |                                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/for_rustc_serialize.rs:35:17
[INFO] [stdout]    |
[INFO] [stdout] 35 |                 try!(writeln!(out, "{} = []", namebuf));
[INFO] [stdout]    |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/for_rustc_serialize.rs:39:17
[INFO] [stdout]    |
[INFO] [stdout] 39 |                 try!(writeln!(out, "{} = {{}}", namebuf));
[INFO] [stdout]    |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/for_rustc_serialize.rs:42:27
[INFO] [stdout]    |
[INFO] [stdout] 42 |             Json::Null => try!(writeln!(out, "{} = null", namebuf)),
[INFO] [stdout]    |                           ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/for_rustc_serialize.rs:56:29
[INFO] [stdout]    |
[INFO] [stdout] 56 | ...                   try!(writeln!(out, "{}.{} = {}",
[INFO] [stdout]    |                       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/for_rustc_serialize.rs:60:29
[INFO] [stdout]    |
[INFO] [stdout] 60 | ...                   try!(writeln!(out, "{}.{} = {}",
[INFO] [stdout]    |                       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/for_rustc_serialize.rs:64:29
[INFO] [stdout]    |
[INFO] [stdout] 64 | ...                   try!(writeln!(out, "{}.{} = {}",
[INFO] [stdout]    |                       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/for_rustc_serialize.rs:68:29
[INFO] [stdout]    |
[INFO] [stdout] 68 | ...                   try!(writeln!(out, "{}.{} = {:?}",
[INFO] [stdout]    |                       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/for_rustc_serialize.rs:72:29
[INFO] [stdout]    |
[INFO] [stdout] 72 | ...                   try!(writeln!(out, "{}.{} = {}",
[INFO] [stdout]    |                       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/for_rustc_serialize.rs:76:29
[INFO] [stdout]    |
[INFO] [stdout] 76 | ...                   try!(writeln!(out, "{}.{} = null",
[INFO] [stdout]    |                       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/for_rustc_serialize.rs:82:29
[INFO] [stdout]    |
[INFO] [stdout] 82 | ...                   try!(writeln!(out, "{} = []", namebuf));
[INFO] [stdout]    |                       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/for_rustc_serialize.rs:90:29
[INFO] [stdout]    |
[INFO] [stdout] 90 | ...                   try!(writeln!(out, "{} = {{}}", namebuf));
[INFO] [stdout]    |                       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/for_rustc_serialize.rs:103:29
[INFO] [stdout]     |
[INFO] [stdout] 103 | ...                   try!(writeln!(out, "{}[{}] = {}",
[INFO] [stdout]     |                       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/for_rustc_serialize.rs:107:29
[INFO] [stdout]     |
[INFO] [stdout] 107 | ...                   try!(writeln!(out, "{}[{}] = {}",
[INFO] [stdout]     |                       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/for_rustc_serialize.rs:111:29
[INFO] [stdout]     |
[INFO] [stdout] 111 | ...                   try!(writeln!(out, "{}[{}] = {}",
[INFO] [stdout]     |                       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/for_rustc_serialize.rs:115:29
[INFO] [stdout]     |
[INFO] [stdout] 115 | ...                   try!(writeln!(out, "{}[{}] = {:?}",
[INFO] [stdout]     |                       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/for_rustc_serialize.rs:119:29
[INFO] [stdout]     |
[INFO] [stdout] 119 | ...                   try!(writeln!(out, "{}[{}] = {}",
[INFO] [stdout]     |                       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/for_rustc_serialize.rs:123:29
[INFO] [stdout]     |
[INFO] [stdout] 123 | ...                   try!(writeln!(out, "{}[{}] = null",
[INFO] [stdout]     |                       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/for_rustc_serialize.rs:129:29
[INFO] [stdout]     |
[INFO] [stdout] 129 | ...                   try!(writeln!(out, "{} = []", namebuf));
[INFO] [stdout]     |                       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/for_rustc_serialize.rs:137:29
[INFO] [stdout]     |
[INFO] [stdout] 137 | ...                   try!(writeln!(out, "{} = {{}}", namebuf));
[INFO] [stdout]     |                       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/for_serde.rs:26:41
[INFO] [stdout]    |
[INFO] [stdout] 26 |             Value::Number(ref value) => try!(writeln!(out, "{} = {}", namebuf, value)),
[INFO] [stdout]    |                                         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/for_serde.rs:28:17
[INFO] [stdout]    |
[INFO] [stdout] 28 |                 try!(writeln!(out, "{} = {:?}", namebuf, value));
[INFO] [stdout]    |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/for_serde.rs:30:35
[INFO] [stdout]    |
[INFO] [stdout] 30 |             Value::Bool(value) => try!(writeln!(out, "{} = {}", namebuf, value)),
[INFO] [stdout]    |                                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/for_serde.rs:32:17
[INFO] [stdout]    |
[INFO] [stdout] 32 |                 try!(writeln!(out, "{} = []", namebuf));
[INFO] [stdout]    |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/for_serde.rs:36:17
[INFO] [stdout]    |
[INFO] [stdout] 36 |                 try!(writeln!(out, "{} = {{}}", namebuf));
[INFO] [stdout]    |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/for_serde.rs:39:28
[INFO] [stdout]    |
[INFO] [stdout] 39 |             Value::Null => try!(writeln!(out, "{} = null", namebuf)),
[INFO] [stdout]    |                            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/for_serde.rs:53:29
[INFO] [stdout]    |
[INFO] [stdout] 53 | ...                   try!(writeln!(out, "{}.{} = {}",
[INFO] [stdout]    |                       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/for_serde.rs:57:29
[INFO] [stdout]    |
[INFO] [stdout] 57 | ...                   try!(writeln!(out, "{}.{} = {:?}",
[INFO] [stdout]    |                       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/for_serde.rs:61:29
[INFO] [stdout]    |
[INFO] [stdout] 61 | ...                   try!(writeln!(out, "{}.{} = {}",
[INFO] [stdout]    |                       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/for_serde.rs:65:29
[INFO] [stdout]    |
[INFO] [stdout] 65 | ...                   try!(writeln!(out, "{}.{} = null",
[INFO] [stdout]    |                       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/for_serde.rs:71:29
[INFO] [stdout]    |
[INFO] [stdout] 71 | ...                   try!(writeln!(out, "{} = []", namebuf));
[INFO] [stdout]    |                       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/for_serde.rs:79:29
[INFO] [stdout]    |
[INFO] [stdout] 79 | ...                   try!(writeln!(out, "{} = {{}}", namebuf));
[INFO] [stdout]    |                       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/for_serde.rs:92:29
[INFO] [stdout]    |
[INFO] [stdout] 92 | ...                   try!(writeln!(out, "{}[{}] = {}",
[INFO] [stdout]    |                       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/for_serde.rs:96:29
[INFO] [stdout]    |
[INFO] [stdout] 96 | ...                   try!(writeln!(out, "{}[{}] = {:?}",
[INFO] [stdout]    |                       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/for_serde.rs:100:29
[INFO] [stdout]     |
[INFO] [stdout] 100 | ...                   try!(writeln!(out, "{}[{}] = {}",
[INFO] [stdout]     |                       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/for_serde.rs:104:29
[INFO] [stdout]     |
[INFO] [stdout] 104 | ...                   try!(writeln!(out, "{}[{}] = null",
[INFO] [stdout]     |                       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/for_serde.rs:110:29
[INFO] [stdout]     |
[INFO] [stdout] 110 | ...                   try!(writeln!(out, "{} = []", namebuf));
[INFO] [stdout]     |                       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/for_serde.rs:118:29
[INFO] [stdout]     |
[INFO] [stdout] 118 | ...                   try!(writeln!(out, "{} = {{}}", namebuf));
[INFO] [stdout]     |                       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/for_rustc_serialize.rs:27:33
[INFO] [stdout]    |
[INFO] [stdout] 27 |             Json::I64(value) => try!(writeln!(out, "{} = {}", namebuf, value)),
[INFO] [stdout]    |                                 ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/for_rustc_serialize.rs:28:33
[INFO] [stdout]    |
[INFO] [stdout] 28 |             Json::U64(value) => try!(writeln!(out, "{} = {}", namebuf, value)),
[INFO] [stdout]    |                                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/for_rustc_serialize.rs:29:33
[INFO] [stdout]    |
[INFO] [stdout] 29 |             Json::F64(value) => try!(writeln!(out, "{} = {}", namebuf, value)),
[INFO] [stdout]    |                                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/for_rustc_serialize.rs:31:17
[INFO] [stdout]    |
[INFO] [stdout] 31 |                 try!(writeln!(out, "{} = {:?}", namebuf, value));
[INFO] [stdout]    |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/for_rustc_serialize.rs:33:37
[INFO] [stdout]    |
[INFO] [stdout] 33 |             Json::Boolean(value) => try!(writeln!(out, "{} = {}", namebuf, value)),
[INFO] [stdout]    |                                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/for_rustc_serialize.rs:35:17
[INFO] [stdout]    |
[INFO] [stdout] 35 |                 try!(writeln!(out, "{} = []", namebuf));
[INFO] [stdout]    |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/for_rustc_serialize.rs:39:17
[INFO] [stdout]    |
[INFO] [stdout] 39 |                 try!(writeln!(out, "{} = {{}}", namebuf));
[INFO] [stdout]    |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/for_rustc_serialize.rs:42:27
[INFO] [stdout]    |
[INFO] [stdout] 42 |             Json::Null => try!(writeln!(out, "{} = null", namebuf)),
[INFO] [stdout]    |                           ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/for_rustc_serialize.rs:56:29
[INFO] [stdout]    |
[INFO] [stdout] 56 | ...                   try!(writeln!(out, "{}.{} = {}",
[INFO] [stdout]    |                       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/for_rustc_serialize.rs:60:29
[INFO] [stdout]    |
[INFO] [stdout] 60 | ...                   try!(writeln!(out, "{}.{} = {}",
[INFO] [stdout]    |                       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/for_rustc_serialize.rs:64:29
[INFO] [stdout]    |
[INFO] [stdout] 64 | ...                   try!(writeln!(out, "{}.{} = {}",
[INFO] [stdout]    |                       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/for_rustc_serialize.rs:68:29
[INFO] [stdout]    |
[INFO] [stdout] 68 | ...                   try!(writeln!(out, "{}.{} = {:?}",
[INFO] [stdout]    |                       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/for_rustc_serialize.rs:72:29
[INFO] [stdout]    |
[INFO] [stdout] 72 | ...                   try!(writeln!(out, "{}.{} = {}",
[INFO] [stdout]    |                       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/for_rustc_serialize.rs:76:29
[INFO] [stdout]    |
[INFO] [stdout] 76 | ...                   try!(writeln!(out, "{}.{} = null",
[INFO] [stdout]    |                       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/for_rustc_serialize.rs:82:29
[INFO] [stdout]    |
[INFO] [stdout] 82 | ...                   try!(writeln!(out, "{} = []", namebuf));
[INFO] [stdout]    |                       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/for_rustc_serialize.rs:90:29
[INFO] [stdout]    |
[INFO] [stdout] 90 | ...                   try!(writeln!(out, "{} = {{}}", namebuf));
[INFO] [stdout]    |                       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/for_rustc_serialize.rs:103:29
[INFO] [stdout]     |
[INFO] [stdout] 103 | ...                   try!(writeln!(out, "{}[{}] = {}",
[INFO] [stdout]     |                       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/for_rustc_serialize.rs:107:29
[INFO] [stdout]     |
[INFO] [stdout] 107 | ...                   try!(writeln!(out, "{}[{}] = {}",
[INFO] [stdout]     |                       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/for_rustc_serialize.rs:111:29
[INFO] [stdout]     |
[INFO] [stdout] 111 | ...                   try!(writeln!(out, "{}[{}] = {}",
[INFO] [stdout]     |                       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/for_rustc_serialize.rs:115:29
[INFO] [stdout]     |
[INFO] [stdout] 115 | ...                   try!(writeln!(out, "{}[{}] = {:?}",
[INFO] [stdout]     |                       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/for_rustc_serialize.rs:119:29
[INFO] [stdout]     |
[INFO] [stdout] 119 | ...                   try!(writeln!(out, "{}[{}] = {}",
[INFO] [stdout]     |                       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/for_rustc_serialize.rs:123:29
[INFO] [stdout]     |
[INFO] [stdout] 123 | ...                   try!(writeln!(out, "{}[{}] = null",
[INFO] [stdout]     |                       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/for_rustc_serialize.rs:129:29
[INFO] [stdout]     |
[INFO] [stdout] 129 | ...                   try!(writeln!(out, "{} = []", namebuf));
[INFO] [stdout]     |                       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/for_rustc_serialize.rs:137:29
[INFO] [stdout]     |
[INFO] [stdout] 137 | ...                   try!(writeln!(out, "{} = {{}}", namebuf));
[INFO] [stdout]     |                       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/for_serde.rs:26:41
[INFO] [stdout]    |
[INFO] [stdout] 26 |             Value::Number(ref value) => try!(writeln!(out, "{} = {}", namebuf, value)),
[INFO] [stdout]    |                                         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/for_serde.rs:28:17
[INFO] [stdout]    |
[INFO] [stdout] 28 |                 try!(writeln!(out, "{} = {:?}", namebuf, value));
[INFO] [stdout]    |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/for_serde.rs:30:35
[INFO] [stdout]    |
[INFO] [stdout] 30 |             Value::Bool(value) => try!(writeln!(out, "{} = {}", namebuf, value)),
[INFO] [stdout]    |                                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/for_serde.rs:32:17
[INFO] [stdout]    |
[INFO] [stdout] 32 |                 try!(writeln!(out, "{} = []", namebuf));
[INFO] [stdout]    |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/for_serde.rs:36:17
[INFO] [stdout]    |
[INFO] [stdout] 36 |                 try!(writeln!(out, "{} = {{}}", namebuf));
[INFO] [stdout]    |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/for_serde.rs:39:28
[INFO] [stdout]    |
[INFO] [stdout] 39 |             Value::Null => try!(writeln!(out, "{} = null", namebuf)),
[INFO] [stdout]    |                            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/for_serde.rs:53:29
[INFO] [stdout]    |
[INFO] [stdout] 53 | ...                   try!(writeln!(out, "{}.{} = {}",
[INFO] [stdout]    |                       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/for_serde.rs:57:29
[INFO] [stdout]    |
[INFO] [stdout] 57 | ...                   try!(writeln!(out, "{}.{} = {:?}",
[INFO] [stdout]    |                       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/for_serde.rs:61:29
[INFO] [stdout]    |
[INFO] [stdout] 61 | ...                   try!(writeln!(out, "{}.{} = {}",
[INFO] [stdout]    |                       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/for_serde.rs:65:29
[INFO] [stdout]    |
[INFO] [stdout] 65 | ...                   try!(writeln!(out, "{}.{} = null",
[INFO] [stdout]    |                       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/for_serde.rs:71:29
[INFO] [stdout]    |
[INFO] [stdout] 71 | ...                   try!(writeln!(out, "{} = []", namebuf));
[INFO] [stdout]    |                       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/for_serde.rs:79:29
[INFO] [stdout]    |
[INFO] [stdout] 79 | ...                   try!(writeln!(out, "{} = {{}}", namebuf));
[INFO] [stdout]    |                       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/for_serde.rs:92:29
[INFO] [stdout]    |
[INFO] [stdout] 92 | ...                   try!(writeln!(out, "{}[{}] = {}",
[INFO] [stdout]    |                       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/for_serde.rs:96:29
[INFO] [stdout]    |
[INFO] [stdout] 96 | ...                   try!(writeln!(out, "{}[{}] = {:?}",
[INFO] [stdout]    |                       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/for_serde.rs:100:29
[INFO] [stdout]     |
[INFO] [stdout] 100 | ...                   try!(writeln!(out, "{}[{}] = {}",
[INFO] [stdout]     |                       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/for_serde.rs:104:29
[INFO] [stdout]     |
[INFO] [stdout] 104 | ...                   try!(writeln!(out, "{}[{}] = null",
[INFO] [stdout]     |                       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/for_serde.rs:110:29
[INFO] [stdout]     |
[INFO] [stdout] 110 | ...                   try!(writeln!(out, "{} = []", namebuf));
[INFO] [stdout]     |                       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/for_serde.rs:118:29
[INFO] [stdout]     |
[INFO] [stdout] 118 | ...                   try!(writeln!(out, "{} = {{}}", namebuf));
[INFO] [stdout]     |                       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 42 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 42 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 13.60s
[INFO] running `Command { std: "docker" "inspect" "01fd5af571b028fc266830bfdc8aca5f2112219f1ef78b1ebf3809cb6d4ff996", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "01fd5af571b028fc266830bfdc8aca5f2112219f1ef78b1ebf3809cb6d4ff996", kill_on_drop: false }`
[INFO] [stdout] 01fd5af571b028fc266830bfdc8aca5f2112219f1ef78b1ebf3809cb6d4ff996