[INFO] updating cached repository https://github.com/takluyver/calcurust
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] a1f264bdac56c1bf45cd3cec9f49610f0cf0b9d6
[INFO] checking takluyver/calcurust against try#ea663bba38739867a4b75ac820991b4f5d093c3b for pr-62262-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftakluyver%2Fcalcurust" "/workspace/builds/worker-2/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/takluyver/calcurust on toolchain ea663bba38739867a4b75ac820991b4f5d093c3b
[INFO] running `"/workspace/cargo-home/bin/cargo" "+ea663bba38739867a4b75ac820991b4f5d093c3b" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/takluyver/calcurust
[INFO] finished tweaking git repo https://github.com/takluyver/calcurust
[INFO] tweaked toml for git repo https://github.com/takluyver/calcurust written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/takluyver/calcurust already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+ea663bba38739867a4b75ac820991b4f5d093c3b" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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=forbid" "-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" "/opt/rustwide/cargo-home/bin/cargo" "+ea663bba38739867a4b75ac820991b4f5d093c3b" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 055151fa90ab81268991826d39523d8b0a12499fdea408e8e2d48dfd4c36fc02
[INFO] running `"docker" "start" "-a" "055151fa90ab81268991826d39523d8b0a12499fdea408e8e2d48dfd4c36fc02"`
[INFO] [stderr]    Compiling libc v0.2.20
[INFO] [stderr]    Compiling unicode-xid v0.0.4
[INFO] [stderr]    Compiling toml v0.2.1
[INFO] [stderr]    Compiling error-chain v0.7.2
[INFO] [stderr]    Compiling pkg-config v0.3.9
[INFO] [stderr]    Compiling rustc-serialize v0.3.22
[INFO] [stderr]    Compiling log v0.3.6
[INFO] [stderr]    Compiling term v0.4.5
[INFO] [stderr]     Checking num-traits v0.1.36
[INFO] [stderr]    Compiling bitflags v0.7.0
[INFO] [stderr]    Compiling quote v0.3.12
[INFO] [stderr]     Checking serde v0.9.7
[INFO] [stderr]    Compiling gcc v0.3.43
[INFO] [stderr]     Checking itoa v0.3.1
[INFO] [stderr]     Checking dtoa v0.4.1
[INFO] [stderr]     Checking time v0.1.36
[INFO] [stderr]     Checking rand v0.3.15
[INFO] [stderr]    Compiling metadeps v1.1.1
[INFO] [stderr]    Compiling syn v0.10.8
[INFO] [stderr]     Checking num-integer v0.1.32
[INFO] [stderr]    Compiling rust-crypto v0.2.36
[INFO] [stderr]     Checking num-iter v0.1.32
[INFO] [stderr]    Compiling zmq-sys v0.8.1
[INFO] [stderr]     Checking num v0.1.36
[INFO] [stderr]    Compiling zmq v0.8.1
[INFO] [stderr]    Compiling syntex_pos v0.54.0
[INFO] [stderr]    Compiling serde_codegen_internals v0.11.3
[INFO] [stderr]    Compiling syntex_errors v0.54.0
[INFO] [stderr]     Checking uuid v0.4.0
[INFO] [stderr]     Checking serde_json v0.9.6
[INFO] [stderr]     Checking chrono v0.3.0
[INFO] [stderr]    Compiling syntex_syntax v0.54.0
[INFO] [stderr]    Compiling syntex v0.54.0
[INFO] [stderr]    Compiling serde_codegen v0.9.0
[INFO] [stderr]    Compiling calcurust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> /opt/rustwide/target/debug/build/calcurust-fd796e56bea29f6d/out/serde_types.rs:99:35
[INFO] [stderr]    |
[INFO] [stderr] 99 | ...                   match try!(visitor . visit :: < String > (  )) {
[INFO] [stderr]    |                             ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> /opt/rustwide/target/debug/build/calcurust-fd796e56bea29f6d/out/serde_types.rs:107:35
[INFO] [stderr]     |
[INFO] [stderr] 107 | ...                   match try!(visitor . visit :: < String > (  )) {
[INFO] [stderr]     |                             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> /opt/rustwide/target/debug/build/calcurust-fd796e56bea29f6d/out/serde_types.rs:115:35
[INFO] [stderr]     |
[INFO] [stderr] 115 | ...                   match try!(visitor . visit :: < String > (  )) {
[INFO] [stderr]     |                             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> /opt/rustwide/target/debug/build/calcurust-fd796e56bea29f6d/out/serde_types.rs:123:35
[INFO] [stderr]     |
[INFO] [stderr] 123 | ...                   match try!(visitor . visit :: < String > (  )) {
[INFO] [stderr]     |                             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> /opt/rustwide/target/debug/build/calcurust-fd796e56bea29f6d/out/serde_types.rs:131:35
[INFO] [stderr]     |
[INFO] [stderr] 131 | ...                   match try!(visitor . visit :: < String > (  )) {
[INFO] [stderr]     |                             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> /opt/rustwide/target/debug/build/calcurust-fd796e56bea29f6d/out/serde_types.rs:139:35
[INFO] [stderr]     |
[INFO] [stderr] 139 | ...                   match try!(visitor . visit :: < u16 > (  )) {
[INFO] [stderr]     |                             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> /opt/rustwide/target/debug/build/calcurust-fd796e56bea29f6d/out/serde_types.rs:147:35
[INFO] [stderr]     |
[INFO] [stderr] 147 | ...                   match try!(visitor . visit :: < u16 > (  )) {
[INFO] [stderr]     |                             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> /opt/rustwide/target/debug/build/calcurust-fd796e56bea29f6d/out/serde_types.rs:155:35
[INFO] [stderr]     |
[INFO] [stderr] 155 | ...                   match try!(visitor . visit :: < u16 > (  )) {
[INFO] [stderr]     |                             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> /opt/rustwide/target/debug/build/calcurust-fd796e56bea29f6d/out/serde_types.rs:163:35
[INFO] [stderr]     |
[INFO] [stderr] 163 | ...                   match try!(visitor . visit :: < u16 > (  )) {
[INFO] [stderr]     |                             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> /opt/rustwide/target/debug/build/calcurust-fd796e56bea29f6d/out/serde_types.rs:171:35
[INFO] [stderr]     |
[INFO] [stderr] 171 | ...                   match try!(visitor . visit :: < u16 > (  )) {
[INFO] [stderr]     |                             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> /opt/rustwide/target/debug/build/calcurust-fd796e56bea29f6d/out/serde_types.rs:204:35
[INFO] [stderr]     |
[INFO] [stderr] 204 | ...                   try!(visitor . visit_key :: < __Field > (
[INFO] [stderr]     |                       ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> /opt/rustwide/target/debug/build/calcurust-fd796e56bea29f6d/out/serde_types.rs:213:46
[INFO] [stderr]     |
[INFO] [stderr] 213 | ...                   Some(try!(visitor . visit_value :: <
[INFO] [stderr]     |                            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> /opt/rustwide/target/debug/build/calcurust-fd796e56bea29f6d/out/serde_types.rs:222:46
[INFO] [stderr]     |
[INFO] [stderr] 222 | ...                   Some(try!(visitor . visit_value :: <
[INFO] [stderr]     |                            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> /opt/rustwide/target/debug/build/calcurust-fd796e56bea29f6d/out/serde_types.rs:231:46
[INFO] [stderr]     |
[INFO] [stderr] 231 | ...                   Some(try!(visitor . visit_value :: <
[INFO] [stderr]     |                            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> /opt/rustwide/target/debug/build/calcurust-fd796e56bea29f6d/out/serde_types.rs:240:46
[INFO] [stderr]     |
[INFO] [stderr] 240 | ...                   Some(try!(visitor . visit_value :: <
[INFO] [stderr]     |                            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> /opt/rustwide/target/debug/build/calcurust-fd796e56bea29f6d/out/serde_types.rs:249:46
[INFO] [stderr]     |
[INFO] [stderr] 249 | ...                   Some(try!(visitor . visit_value :: <
[INFO] [stderr]     |                            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> /opt/rustwide/target/debug/build/calcurust-fd796e56bea29f6d/out/serde_types.rs:258:46
[INFO] [stderr]     |
[INFO] [stderr] 258 | ...                   Some(try!(visitor . visit_value :: <
[INFO] [stderr]     |                            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> /opt/rustwide/target/debug/build/calcurust-fd796e56bea29f6d/out/serde_types.rs:267:46
[INFO] [stderr]     |
[INFO] [stderr] 267 | ...                   Some(try!(visitor . visit_value :: <
[INFO] [stderr]     |                            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> /opt/rustwide/target/debug/build/calcurust-fd796e56bea29f6d/out/serde_types.rs:276:46
[INFO] [stderr]     |
[INFO] [stderr] 276 | ...                   Some(try!(visitor . visit_value :: <
[INFO] [stderr]     |                            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> /opt/rustwide/target/debug/build/calcurust-fd796e56bea29f6d/out/serde_types.rs:285:46
[INFO] [stderr]     |
[INFO] [stderr] 285 | ...                   Some(try!(visitor . visit_value :: <
[INFO] [stderr]     |                            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> /opt/rustwide/target/debug/build/calcurust-fd796e56bea29f6d/out/serde_types.rs:294:46
[INFO] [stderr]     |
[INFO] [stderr] 294 | ...                   Some(try!(visitor . visit_value :: <
[INFO] [stderr]     |                            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> /opt/rustwide/target/debug/build/calcurust-fd796e56bea29f6d/out/serde_types.rs:299:41
[INFO] [stderr]     |
[INFO] [stderr] 299 | ...                   try!(visitor . visit_value :: < _serde
[INFO] [stderr]     |                       ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> /opt/rustwide/target/debug/build/calcurust-fd796e56bea29f6d/out/serde_types.rs:309:33
[INFO] [stderr]     |
[INFO] [stderr] 309 | ...                   try!(_serde :: de :: private :: missing_field
[INFO] [stderr]     |                       ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> /opt/rustwide/target/debug/build/calcurust-fd796e56bea29f6d/out/serde_types.rs:316:33
[INFO] [stderr]     |
[INFO] [stderr] 316 | ...                   try!(_serde :: de :: private :: missing_field
[INFO] [stderr]     |                       ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> /opt/rustwide/target/debug/build/calcurust-fd796e56bea29f6d/out/serde_types.rs:323:33
[INFO] [stderr]     |
[INFO] [stderr] 323 | ...                   try!(_serde :: de :: private :: missing_field
[INFO] [stderr]     |                       ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> /opt/rustwide/target/debug/build/calcurust-fd796e56bea29f6d/out/serde_types.rs:330:33
[INFO] [stderr]     |
[INFO] [stderr] 330 | ...                   try!(_serde :: de :: private :: missing_field
[INFO] [stderr]     |                       ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> /opt/rustwide/target/debug/build/calcurust-fd796e56bea29f6d/out/serde_types.rs:337:33
[INFO] [stderr]     |
[INFO] [stderr] 337 | ...                   try!(_serde :: de :: private :: missing_field
[INFO] [stderr]     |                       ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> /opt/rustwide/target/debug/build/calcurust-fd796e56bea29f6d/out/serde_types.rs:344:33
[INFO] [stderr]     |
[INFO] [stderr] 344 | ...                   try!(_serde :: de :: private :: missing_field
[INFO] [stderr]     |                       ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> /opt/rustwide/target/debug/build/calcurust-fd796e56bea29f6d/out/serde_types.rs:351:33
[INFO] [stderr]     |
[INFO] [stderr] 351 | ...                   try!(_serde :: de :: private :: missing_field
[INFO] [stderr]     |                       ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> /opt/rustwide/target/debug/build/calcurust-fd796e56bea29f6d/out/serde_types.rs:358:33
[INFO] [stderr]     |
[INFO] [stderr] 358 | ...                   try!(_serde :: de :: private :: missing_field
[INFO] [stderr]     |                       ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> /opt/rustwide/target/debug/build/calcurust-fd796e56bea29f6d/out/serde_types.rs:365:33
[INFO] [stderr]     |
[INFO] [stderr] 365 | ...                   try!(_serde :: de :: private :: missing_field
[INFO] [stderr]     |                       ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> /opt/rustwide/target/debug/build/calcurust-fd796e56bea29f6d/out/serde_types.rs:372:33
[INFO] [stderr]     |
[INFO] [stderr] 372 | ...                   try!(_serde :: de :: private :: missing_field
[INFO] [stderr]     |                       ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> /opt/rustwide/target/debug/build/calcurust-fd796e56bea29f6d/out/serde_types.rs:406:21
[INFO] [stderr]     |
[INFO] [stderr] 406 |                     try!(_serializer . serialize_struct (
[INFO] [stderr]     |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> /opt/rustwide/target/debug/build/calcurust-fd796e56bea29f6d/out/serde_types.rs:409:17
[INFO] [stderr]     |
[INFO] [stderr] 409 |                 try!(_serde :: ser :: SerializeStruct :: serialize_field (
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> /opt/rustwide/target/debug/build/calcurust-fd796e56bea29f6d/out/serde_types.rs:411:17
[INFO] [stderr]     |
[INFO] [stderr] 411 |                 try!(_serde :: ser :: SerializeStruct :: serialize_field (
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> /opt/rustwide/target/debug/build/calcurust-fd796e56bea29f6d/out/serde_types.rs:414:17
[INFO] [stderr]     |
[INFO] [stderr] 414 |                 try!(_serde :: ser :: SerializeStruct :: serialize_field (
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> /opt/rustwide/target/debug/build/calcurust-fd796e56bea29f6d/out/serde_types.rs:416:17
[INFO] [stderr]     |
[INFO] [stderr] 416 |                 try!(_serde :: ser :: SerializeStruct :: serialize_field (
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> /opt/rustwide/target/debug/build/calcurust-fd796e56bea29f6d/out/serde_types.rs:419:17
[INFO] [stderr]     |
[INFO] [stderr] 419 |                 try!(_serde :: ser :: SerializeStruct :: serialize_field (
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> /opt/rustwide/target/debug/build/calcurust-fd796e56bea29f6d/out/serde_types.rs:422:17
[INFO] [stderr]     |
[INFO] [stderr] 422 |                 try!(_serde :: ser :: SerializeStruct :: serialize_field (
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> /opt/rustwide/target/debug/build/calcurust-fd796e56bea29f6d/out/serde_types.rs:425:17
[INFO] [stderr]     |
[INFO] [stderr] 425 |                 try!(_serde :: ser :: SerializeStruct :: serialize_field (
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> /opt/rustwide/target/debug/build/calcurust-fd796e56bea29f6d/out/serde_types.rs:427:17
[INFO] [stderr]     |
[INFO] [stderr] 427 |                 try!(_serde :: ser :: SerializeStruct :: serialize_field (
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> /opt/rustwide/target/debug/build/calcurust-fd796e56bea29f6d/out/serde_types.rs:430:17
[INFO] [stderr]     |
[INFO] [stderr] 430 |                 try!(_serde :: ser :: SerializeStruct :: serialize_field (
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> /opt/rustwide/target/debug/build/calcurust-fd796e56bea29f6d/out/serde_types.rs:433:17
[INFO] [stderr]     |
[INFO] [stderr] 433 |                 try!(_serde :: ser :: SerializeStruct :: serialize_field (
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> /opt/rustwide/target/debug/build/calcurust-fd796e56bea29f6d/out/serde_types.rs:536:35
[INFO] [stderr]     |
[INFO] [stderr] 536 | ...                   match try!(visitor . visit :: < String > (  )) {
[INFO] [stderr]     |                             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> /opt/rustwide/target/debug/build/calcurust-fd796e56bea29f6d/out/serde_types.rs:544:35
[INFO] [stderr]     |
[INFO] [stderr] 544 | ...                   match try!(visitor . visit :: < String > (  )) {
[INFO] [stderr]     |                             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> /opt/rustwide/target/debug/build/calcurust-fd796e56bea29f6d/out/serde_types.rs:552:35
[INFO] [stderr]     |
[INFO] [stderr] 552 | ...                   match try!(visitor . visit :: < String > (  )) {
[INFO] [stderr]     |                             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> /opt/rustwide/target/debug/build/calcurust-fd796e56bea29f6d/out/serde_types.rs:560:35
[INFO] [stderr]     |
[INFO] [stderr] 560 | ...                   match try!(visitor . visit :: < Option < chrono ::
[INFO] [stderr]     |                             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> /opt/rustwide/target/debug/build/calcurust-fd796e56bea29f6d/out/serde_types.rs:569:35
[INFO] [stderr]     |
[INFO] [stderr] 569 | ...                   match try!(visitor . visit :: < String > (  )) {
[INFO] [stderr]     |                             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> /opt/rustwide/target/debug/build/calcurust-fd796e56bea29f6d/out/serde_types.rs:577:35
[INFO] [stderr]     |
[INFO] [stderr] 577 | ...                   match try!(visitor . visit :: < String > (  )) {
[INFO] [stderr]     |                             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> /opt/rustwide/target/debug/build/calcurust-fd796e56bea29f6d/out/serde_types.rs:604:35
[INFO] [stderr]     |
[INFO] [stderr] 604 | ...                   try!(visitor . visit_key :: < __Field > (
[INFO] [stderr]     |                       ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> /opt/rustwide/target/debug/build/calcurust-fd796e56bea29f6d/out/serde_types.rs:613:46
[INFO] [stderr]     |
[INFO] [stderr] 613 | ...                   Some(try!(visitor . visit_value :: <
[INFO] [stderr]     |                            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> /opt/rustwide/target/debug/build/calcurust-fd796e56bea29f6d/out/serde_types.rs:622:46
[INFO] [stderr]     |
[INFO] [stderr] 622 | ...                   Some(try!(visitor . visit_value :: <
[INFO] [stderr]     |                            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> /opt/rustwide/target/debug/build/calcurust-fd796e56bea29f6d/out/serde_types.rs:631:46
[INFO] [stderr]     |
[INFO] [stderr] 631 | ...                   Some(try!(visitor . visit_value :: <
[INFO] [stderr]     |                            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> /opt/rustwide/target/debug/build/calcurust-fd796e56bea29f6d/out/serde_types.rs:640:46
[INFO] [stderr]     |
[INFO] [stderr] 640 | ...                   Some(try!(visitor . visit_value :: <
[INFO] [stderr]     |                            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> /opt/rustwide/target/debug/build/calcurust-fd796e56bea29f6d/out/serde_types.rs:651:46
[INFO] [stderr]     |
[INFO] [stderr] 651 | ...                   Some(try!(visitor . visit_value :: <
[INFO] [stderr]     |                            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> /opt/rustwide/target/debug/build/calcurust-fd796e56bea29f6d/out/serde_types.rs:660:46
[INFO] [stderr]     |
[INFO] [stderr] 660 | ...                   Some(try!(visitor . visit_value :: <
[INFO] [stderr]     |                            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> /opt/rustwide/target/debug/build/calcurust-fd796e56bea29f6d/out/serde_types.rs:665:41
[INFO] [stderr]     |
[INFO] [stderr] 665 | ...                   try!(visitor . visit_value :: < _serde
[INFO] [stderr]     |                       ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> /opt/rustwide/target/debug/build/calcurust-fd796e56bea29f6d/out/serde_types.rs:675:33
[INFO] [stderr]     |
[INFO] [stderr] 675 | ...                   try!(_serde :: de :: private :: missing_field
[INFO] [stderr]     |                       ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> /opt/rustwide/target/debug/build/calcurust-fd796e56bea29f6d/out/serde_types.rs:682:33
[INFO] [stderr]     |
[INFO] [stderr] 682 | ...                   try!(_serde :: de :: private :: missing_field
[INFO] [stderr]     |                       ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> /opt/rustwide/target/debug/build/calcurust-fd796e56bea29f6d/out/serde_types.rs:689:33
[INFO] [stderr]     |
[INFO] [stderr] 689 | ...                   try!(_serde :: de :: private :: missing_field
[INFO] [stderr]     |                       ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> /opt/rustwide/target/debug/build/calcurust-fd796e56bea29f6d/out/serde_types.rs:696:33
[INFO] [stderr]     |
[INFO] [stderr] 696 | ...                   try!(_serde :: de :: private :: missing_field
[INFO] [stderr]     |                       ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> /opt/rustwide/target/debug/build/calcurust-fd796e56bea29f6d/out/serde_types.rs:703:33
[INFO] [stderr]     |
[INFO] [stderr] 703 | ...                   try!(_serde :: de :: private :: missing_field
[INFO] [stderr]     |                       ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> /opt/rustwide/target/debug/build/calcurust-fd796e56bea29f6d/out/serde_types.rs:710:33
[INFO] [stderr]     |
[INFO] [stderr] 710 | ...                   try!(_serde :: de :: private :: missing_field
[INFO] [stderr]     |                       ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> /opt/rustwide/target/debug/build/calcurust-fd796e56bea29f6d/out/serde_types.rs:739:21
[INFO] [stderr]     |
[INFO] [stderr] 739 |                     try!(_serializer . serialize_struct (
[INFO] [stderr]     |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> /opt/rustwide/target/debug/build/calcurust-fd796e56bea29f6d/out/serde_types.rs:741:17
[INFO] [stderr]     |
[INFO] [stderr] 741 |                 try!(_serde :: ser :: SerializeStruct :: serialize_field (
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> /opt/rustwide/target/debug/build/calcurust-fd796e56bea29f6d/out/serde_types.rs:743:17
[INFO] [stderr]     |
[INFO] [stderr] 743 |                 try!(_serde :: ser :: SerializeStruct :: serialize_field (
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> /opt/rustwide/target/debug/build/calcurust-fd796e56bea29f6d/out/serde_types.rs:745:17
[INFO] [stderr]     |
[INFO] [stderr] 745 |                 try!(_serde :: ser :: SerializeStruct :: serialize_field (
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> /opt/rustwide/target/debug/build/calcurust-fd796e56bea29f6d/out/serde_types.rs:747:17
[INFO] [stderr]     |
[INFO] [stderr] 747 |                 try!(_serde :: ser :: SerializeStruct :: serialize_field (
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> /opt/rustwide/target/debug/build/calcurust-fd796e56bea29f6d/out/serde_types.rs:749:17
[INFO] [stderr]     |
[INFO] [stderr] 749 |                 try!(_serde :: ser :: SerializeStruct :: serialize_field (
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> /opt/rustwide/target/debug/build/calcurust-fd796e56bea29f6d/out/serde_types.rs:751:17
[INFO] [stderr]     |
[INFO] [stderr] 751 |                 try!(_serde :: ser :: SerializeStruct :: serialize_field (
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/main.rs:19:5
[INFO] [stderr]    |
[INFO] [stderr] 19 |     try!(stdout.write(prompt.as_bytes()));
[INFO] [stderr]    |     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/main.rs:20:5
[INFO] [stderr]    |
[INFO] [stderr] 20 |     try!(stdout.flush());
[INFO] [stderr]    |     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/main.rs:21:5
[INFO] [stderr]    |
[INFO] [stderr] 21 |     try!(std::io::stdin().read_line(&mut line));
[INFO] [stderr]    |     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> /opt/rustwide/target/debug/build/calcurust-fd796e56bea29f6d/out/serde_types.rs:99:35
[INFO] [stderr]    |
[INFO] [stderr] 99 | ...                   match try!(visitor . visit :: < String > (  )) {
[INFO] [stderr]    |                             ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> /opt/rustwide/target/debug/build/calcurust-fd796e56bea29f6d/out/serde_types.rs:107:35
[INFO] [stderr]     |
[INFO] [stderr] 107 | ...                   match try!(visitor . visit :: < String > (  )) {
[INFO] [stderr]     |                             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> /opt/rustwide/target/debug/build/calcurust-fd796e56bea29f6d/out/serde_types.rs:115:35
[INFO] [stderr]     |
[INFO] [stderr] 115 | ...                   match try!(visitor . visit :: < String > (  )) {
[INFO] [stderr]     |                             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> /opt/rustwide/target/debug/build/calcurust-fd796e56bea29f6d/out/serde_types.rs:123:35
[INFO] [stderr]     |
[INFO] [stderr] 123 | ...                   match try!(visitor . visit :: < String > (  )) {
[INFO] [stderr]     |                             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> /opt/rustwide/target/debug/build/calcurust-fd796e56bea29f6d/out/serde_types.rs:131:35
[INFO] [stderr]     |
[INFO] [stderr] 131 | ...                   match try!(visitor . visit :: < String > (  )) {
[INFO] [stderr]     |                             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> /opt/rustwide/target/debug/build/calcurust-fd796e56bea29f6d/out/serde_types.rs:139:35
[INFO] [stderr]     |
[INFO] [stderr] 139 | ...                   match try!(visitor . visit :: < u16 > (  )) {
[INFO] [stderr]     |                             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> /opt/rustwide/target/debug/build/calcurust-fd796e56bea29f6d/out/serde_types.rs:147:35
[INFO] [stderr]     |
[INFO] [stderr] 147 | ...                   match try!(visitor . visit :: < u16 > (  )) {
[INFO] [stderr]     |                             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> /opt/rustwide/target/debug/build/calcurust-fd796e56bea29f6d/out/serde_types.rs:155:35
[INFO] [stderr]     |
[INFO] [stderr] 155 | ...                   match try!(visitor . visit :: < u16 > (  )) {
[INFO] [stderr]     |                             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> /opt/rustwide/target/debug/build/calcurust-fd796e56bea29f6d/out/serde_types.rs:163:35
[INFO] [stderr]     |
[INFO] [stderr] 163 | ...                   match try!(visitor . visit :: < u16 > (  )) {
[INFO] [stderr]     |                             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> /opt/rustwide/target/debug/build/calcurust-fd796e56bea29f6d/out/serde_types.rs:171:35
[INFO] [stderr]     |
[INFO] [stderr] 171 | ...                   match try!(visitor . visit :: < u16 > (  )) {
[INFO] [stderr]     |                             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> /opt/rustwide/target/debug/build/calcurust-fd796e56bea29f6d/out/serde_types.rs:204:35
[INFO] [stderr]     |
[INFO] [stderr] 204 | ...                   try!(visitor . visit_key :: < __Field > (
[INFO] [stderr]     |                       ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> /opt/rustwide/target/debug/build/calcurust-fd796e56bea29f6d/out/serde_types.rs:213:46
[INFO] [stderr]     |
[INFO] [stderr] 213 | ...                   Some(try!(visitor . visit_value :: <
[INFO] [stderr]     |                            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> /opt/rustwide/target/debug/build/calcurust-fd796e56bea29f6d/out/serde_types.rs:222:46
[INFO] [stderr]     |
[INFO] [stderr] 222 | ...                   Some(try!(visitor . visit_value :: <
[INFO] [stderr]     |                            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> /opt/rustwide/target/debug/build/calcurust-fd796e56bea29f6d/out/serde_types.rs:231:46
[INFO] [stderr]     |
[INFO] [stderr] 231 | ...                   Some(try!(visitor . visit_value :: <
[INFO] [stderr]     |                            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> /opt/rustwide/target/debug/build/calcurust-fd796e56bea29f6d/out/serde_types.rs:240:46
[INFO] [stderr]     |
[INFO] [stderr] 240 | ...                   Some(try!(visitor . visit_value :: <
[INFO] [stderr]     |                            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> /opt/rustwide/target/debug/build/calcurust-fd796e56bea29f6d/out/serde_types.rs:249:46
[INFO] [stderr]     |
[INFO] [stderr] 249 | ...                   Some(try!(visitor . visit_value :: <
[INFO] [stderr]     |                            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> /opt/rustwide/target/debug/build/calcurust-fd796e56bea29f6d/out/serde_types.rs:258:46
[INFO] [stderr]     |
[INFO] [stderr] 258 | ...                   Some(try!(visitor . visit_value :: <
[INFO] [stderr]     |                            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> /opt/rustwide/target/debug/build/calcurust-fd796e56bea29f6d/out/serde_types.rs:267:46
[INFO] [stderr]     |
[INFO] [stderr] 267 | ...                   Some(try!(visitor . visit_value :: <
[INFO] [stderr]     |                            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> /opt/rustwide/target/debug/build/calcurust-fd796e56bea29f6d/out/serde_types.rs:276:46
[INFO] [stderr]     |
[INFO] [stderr] 276 | ...                   Some(try!(visitor . visit_value :: <
[INFO] [stderr]     |                            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> /opt/rustwide/target/debug/build/calcurust-fd796e56bea29f6d/out/serde_types.rs:285:46
[INFO] [stderr]     |
[INFO] [stderr] 285 | ...                   Some(try!(visitor . visit_value :: <
[INFO] [stderr]     |                            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> /opt/rustwide/target/debug/build/calcurust-fd796e56bea29f6d/out/serde_types.rs:294:46
[INFO] [stderr]     |
[INFO] [stderr] 294 | ...                   Some(try!(visitor . visit_value :: <
[INFO] [stderr]     |                            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> /opt/rustwide/target/debug/build/calcurust-fd796e56bea29f6d/out/serde_types.rs:299:41
[INFO] [stderr]     |
[INFO] [stderr] 299 | ...                   try!(visitor . visit_value :: < _serde
[INFO] [stderr]     |                       ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> /opt/rustwide/target/debug/build/calcurust-fd796e56bea29f6d/out/serde_types.rs:309:33
[INFO] [stderr]     |
[INFO] [stderr] 309 | ...                   try!(_serde :: de :: private :: missing_field
[INFO] [stderr]     |                       ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> /opt/rustwide/target/debug/build/calcurust-fd796e56bea29f6d/out/serde_types.rs:316:33
[INFO] [stderr]     |
[INFO] [stderr] 316 | ...                   try!(_serde :: de :: private :: missing_field
[INFO] [stderr]     |                       ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> /opt/rustwide/target/debug/build/calcurust-fd796e56bea29f6d/out/serde_types.rs:323:33
[INFO] [stderr]     |
[INFO] [stderr] 323 | ...                   try!(_serde :: de :: private :: missing_field
[INFO] [stderr]     |                       ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> /opt/rustwide/target/debug/build/calcurust-fd796e56bea29f6d/out/serde_types.rs:330:33
[INFO] [stderr]     |
[INFO] [stderr] 330 | ...                   try!(_serde :: de :: private :: missing_field
[INFO] [stderr]     |                       ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> /opt/rustwide/target/debug/build/calcurust-fd796e56bea29f6d/out/serde_types.rs:337:33
[INFO] [stderr]     |
[INFO] [stderr] 337 | ...                   try!(_serde :: de :: private :: missing_field
[INFO] [stderr]     |                       ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> /opt/rustwide/target/debug/build/calcurust-fd796e56bea29f6d/out/serde_types.rs:344:33
[INFO] [stderr]     |
[INFO] [stderr] 344 | ...                   try!(_serde :: de :: private :: missing_field
[INFO] [stderr]     |                       ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> /opt/rustwide/target/debug/build/calcurust-fd796e56bea29f6d/out/serde_types.rs:351:33
[INFO] [stderr]     |
[INFO] [stderr] 351 | ...                   try!(_serde :: de :: private :: missing_field
[INFO] [stderr]     |                       ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> /opt/rustwide/target/debug/build/calcurust-fd796e56bea29f6d/out/serde_types.rs:358:33
[INFO] [stderr]     |
[INFO] [stderr] 358 | ...                   try!(_serde :: de :: private :: missing_field
[INFO] [stderr]     |                       ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> /opt/rustwide/target/debug/build/calcurust-fd796e56bea29f6d/out/serde_types.rs:365:33
[INFO] [stderr]     |
[INFO] [stderr] 365 | ...                   try!(_serde :: de :: private :: missing_field
[INFO] [stderr]     |                       ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> /opt/rustwide/target/debug/build/calcurust-fd796e56bea29f6d/out/serde_types.rs:372:33
[INFO] [stderr]     |
[INFO] [stderr] 372 | ...                   try!(_serde :: de :: private :: missing_field
[INFO] [stderr]     |                       ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> /opt/rustwide/target/debug/build/calcurust-fd796e56bea29f6d/out/serde_types.rs:406:21
[INFO] [stderr]     |
[INFO] [stderr] 406 |                     try!(_serializer . serialize_struct (
[INFO] [stderr]     |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> /opt/rustwide/target/debug/build/calcurust-fd796e56bea29f6d/out/serde_types.rs:409:17
[INFO] [stderr]     |
[INFO] [stderr] 409 |                 try!(_serde :: ser :: SerializeStruct :: serialize_field (
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> /opt/rustwide/target/debug/build/calcurust-fd796e56bea29f6d/out/serde_types.rs:411:17
[INFO] [stderr]     |
[INFO] [stderr] 411 |                 try!(_serde :: ser :: SerializeStruct :: serialize_field (
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> /opt/rustwide/target/debug/build/calcurust-fd796e56bea29f6d/out/serde_types.rs:414:17
[INFO] [stderr]     |
[INFO] [stderr] 414 |                 try!(_serde :: ser :: SerializeStruct :: serialize_field (
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> /opt/rustwide/target/debug/build/calcurust-fd796e56bea29f6d/out/serde_types.rs:416:17
[INFO] [stderr]     |
[INFO] [stderr] 416 |                 try!(_serde :: ser :: SerializeStruct :: serialize_field (
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> /opt/rustwide/target/debug/build/calcurust-fd796e56bea29f6d/out/serde_types.rs:419:17
[INFO] [stderr]     |
[INFO] [stderr] 419 |                 try!(_serde :: ser :: SerializeStruct :: serialize_field (
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> /opt/rustwide/target/debug/build/calcurust-fd796e56bea29f6d/out/serde_types.rs:422:17
[INFO] [stderr]     |
[INFO] [stderr] 422 |                 try!(_serde :: ser :: SerializeStruct :: serialize_field (
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> /opt/rustwide/target/debug/build/calcurust-fd796e56bea29f6d/out/serde_types.rs:425:17
[INFO] [stderr]     |
[INFO] [stderr] 425 |                 try!(_serde :: ser :: SerializeStruct :: serialize_field (
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> /opt/rustwide/target/debug/build/calcurust-fd796e56bea29f6d/out/serde_types.rs:427:17
[INFO] [stderr]     |
[INFO] [stderr] 427 |                 try!(_serde :: ser :: SerializeStruct :: serialize_field (
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> /opt/rustwide/target/debug/build/calcurust-fd796e56bea29f6d/out/serde_types.rs:430:17
[INFO] [stderr]     |
[INFO] [stderr] 430 |                 try!(_serde :: ser :: SerializeStruct :: serialize_field (
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> /opt/rustwide/target/debug/build/calcurust-fd796e56bea29f6d/out/serde_types.rs:433:17
[INFO] [stderr]     |
[INFO] [stderr] 433 |                 try!(_serde :: ser :: SerializeStruct :: serialize_field (
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> /opt/rustwide/target/debug/build/calcurust-fd796e56bea29f6d/out/serde_types.rs:536:35
[INFO] [stderr]     |
[INFO] [stderr] 536 | ...                   match try!(visitor . visit :: < String > (  )) {
[INFO] [stderr]     |                             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> /opt/rustwide/target/debug/build/calcurust-fd796e56bea29f6d/out/serde_types.rs:544:35
[INFO] [stderr]     |
[INFO] [stderr] 544 | ...                   match try!(visitor . visit :: < String > (  )) {
[INFO] [stderr]     |                             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> /opt/rustwide/target/debug/build/calcurust-fd796e56bea29f6d/out/serde_types.rs:552:35
[INFO] [stderr]     |
[INFO] [stderr] 552 | ...                   match try!(visitor . visit :: < String > (  )) {
[INFO] [stderr]     |                             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> /opt/rustwide/target/debug/build/calcurust-fd796e56bea29f6d/out/serde_types.rs:560:35
[INFO] [stderr]     |
[INFO] [stderr] 560 | ...                   match try!(visitor . visit :: < Option < chrono ::
[INFO] [stderr]     |                             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> /opt/rustwide/target/debug/build/calcurust-fd796e56bea29f6d/out/serde_types.rs:569:35
[INFO] [stderr]     |
[INFO] [stderr] 569 | ...                   match try!(visitor . visit :: < String > (  )) {
[INFO] [stderr]     |                             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> /opt/rustwide/target/debug/build/calcurust-fd796e56bea29f6d/out/serde_types.rs:577:35
[INFO] [stderr]     |
[INFO] [stderr] 577 | ...                   match try!(visitor . visit :: < String > (  )) {
[INFO] [stderr]     |                             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> /opt/rustwide/target/debug/build/calcurust-fd796e56bea29f6d/out/serde_types.rs:604:35
[INFO] [stderr]     |
[INFO] [stderr] 604 | ...                   try!(visitor . visit_key :: < __Field > (
[INFO] [stderr]     |                       ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> /opt/rustwide/target/debug/build/calcurust-fd796e56bea29f6d/out/serde_types.rs:613:46
[INFO] [stderr]     |
[INFO] [stderr] 613 | ...                   Some(try!(visitor . visit_value :: <
[INFO] [stderr]     |                            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> /opt/rustwide/target/debug/build/calcurust-fd796e56bea29f6d/out/serde_types.rs:622:46
[INFO] [stderr]     |
[INFO] [stderr] 622 | ...                   Some(try!(visitor . visit_value :: <
[INFO] [stderr]     |                            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> /opt/rustwide/target/debug/build/calcurust-fd796e56bea29f6d/out/serde_types.rs:631:46
[INFO] [stderr]     |
[INFO] [stderr] 631 | ...                   Some(try!(visitor . visit_value :: <
[INFO] [stderr]     |                            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> /opt/rustwide/target/debug/build/calcurust-fd796e56bea29f6d/out/serde_types.rs:640:46
[INFO] [stderr]     |
[INFO] [stderr] 640 | ...                   Some(try!(visitor . visit_value :: <
[INFO] [stderr]     |                            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> /opt/rustwide/target/debug/build/calcurust-fd796e56bea29f6d/out/serde_types.rs:651:46
[INFO] [stderr]     |
[INFO] [stderr] 651 | ...                   Some(try!(visitor . visit_value :: <
[INFO] [stderr]     |                            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> /opt/rustwide/target/debug/build/calcurust-fd796e56bea29f6d/out/serde_types.rs:660:46
[INFO] [stderr]     |
[INFO] [stderr] 660 | ...                   Some(try!(visitor . visit_value :: <
[INFO] [stderr]     |                            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> /opt/rustwide/target/debug/build/calcurust-fd796e56bea29f6d/out/serde_types.rs:665:41
[INFO] [stderr]     |
[INFO] [stderr] 665 | ...                   try!(visitor . visit_value :: < _serde
[INFO] [stderr]     |                       ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> /opt/rustwide/target/debug/build/calcurust-fd796e56bea29f6d/out/serde_types.rs:675:33
[INFO] [stderr]     |
[INFO] [stderr] 675 | ...                   try!(_serde :: de :: private :: missing_field
[INFO] [stderr]     |                       ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> /opt/rustwide/target/debug/build/calcurust-fd796e56bea29f6d/out/serde_types.rs:682:33
[INFO] [stderr]     |
[INFO] [stderr] 682 | ...                   try!(_serde :: de :: private :: missing_field
[INFO] [stderr]     |                       ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> /opt/rustwide/target/debug/build/calcurust-fd796e56bea29f6d/out/serde_types.rs:689:33
[INFO] [stderr]     |
[INFO] [stderr] 689 | ...                   try!(_serde :: de :: private :: missing_field
[INFO] [stderr]     |                       ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> /opt/rustwide/target/debug/build/calcurust-fd796e56bea29f6d/out/serde_types.rs:696:33
[INFO] [stderr]     |
[INFO] [stderr] 696 | ...                   try!(_serde :: de :: private :: missing_field
[INFO] [stderr]     |                       ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> /opt/rustwide/target/debug/build/calcurust-fd796e56bea29f6d/out/serde_types.rs:703:33
[INFO] [stderr]     |
[INFO] [stderr] 703 | ...                   try!(_serde :: de :: private :: missing_field
[INFO] [stderr]     |                       ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> /opt/rustwide/target/debug/build/calcurust-fd796e56bea29f6d/out/serde_types.rs:710:33
[INFO] [stderr]     |
[INFO] [stderr] 710 | ...                   try!(_serde :: de :: private :: missing_field
[INFO] [stderr]     |                       ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> /opt/rustwide/target/debug/build/calcurust-fd796e56bea29f6d/out/serde_types.rs:739:21
[INFO] [stderr]     |
[INFO] [stderr] 739 |                     try!(_serializer . serialize_struct (
[INFO] [stderr]     |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> /opt/rustwide/target/debug/build/calcurust-fd796e56bea29f6d/out/serde_types.rs:741:17
[INFO] [stderr]     |
[INFO] [stderr] 741 |                 try!(_serde :: ser :: SerializeStruct :: serialize_field (
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> /opt/rustwide/target/debug/build/calcurust-fd796e56bea29f6d/out/serde_types.rs:743:17
[INFO] [stderr]     |
[INFO] [stderr] 743 |                 try!(_serde :: ser :: SerializeStruct :: serialize_field (
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> /opt/rustwide/target/debug/build/calcurust-fd796e56bea29f6d/out/serde_types.rs:745:17
[INFO] [stderr]     |
[INFO] [stderr] 745 |                 try!(_serde :: ser :: SerializeStruct :: serialize_field (
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> /opt/rustwide/target/debug/build/calcurust-fd796e56bea29f6d/out/serde_types.rs:747:17
[INFO] [stderr]     |
[INFO] [stderr] 747 |                 try!(_serde :: ser :: SerializeStruct :: serialize_field (
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> /opt/rustwide/target/debug/build/calcurust-fd796e56bea29f6d/out/serde_types.rs:749:17
[INFO] [stderr]     |
[INFO] [stderr] 749 |                 try!(_serde :: ser :: SerializeStruct :: serialize_field (
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> /opt/rustwide/target/debug/build/calcurust-fd796e56bea29f6d/out/serde_types.rs:751:17
[INFO] [stderr]     |
[INFO] [stderr] 751 |                 try!(_serde :: ser :: SerializeStruct :: serialize_field (
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/main.rs:19:5
[INFO] [stderr]    |
[INFO] [stderr] 19 |     try!(stdout.write(prompt.as_bytes()));
[INFO] [stderr]    |     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/main.rs:20:5
[INFO] [stderr]    |
[INFO] [stderr] 20 |     try!(stdout.flush());
[INFO] [stderr]    |     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/main.rs:21:5
[INFO] [stderr]    |
[INFO] [stderr] 21 |     try!(std::io::stdin().read_line(&mut line));
[INFO] [stderr]    |     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Heartbeat`
[INFO] [stderr]   --> src/messaging.rs:91:5
[INFO] [stderr]    |
[INFO] [stderr] 91 |     Heartbeat,
[INFO] [stderr]    |     ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Control`
[INFO] [stderr]   --> src/messaging.rs:93:5
[INFO] [stderr]    |
[INFO] [stderr] 93 |     Control,
[INFO] [stderr]    |     ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `input_line`
[INFO] [stderr]   --> src/main.rs:16:1
[INFO] [stderr]    |
[INFO] [stderr] 16 | fn input_line(prompt: &str) -> Result<String, std::io::Error> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `main_cmdline`
[INFO] [stderr]   --> src/main.rs:68:1
[INFO] [stderr]    |
[INFO] [stderr] 68 | fn main_cmdline() {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Heartbeat`
[INFO] [stderr]   --> src/messaging.rs:91:5
[INFO] [stderr]    |
[INFO] [stderr] 91 |     Heartbeat,
[INFO] [stderr]    |     ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Control`
[INFO] [stderr]   --> src/messaging.rs:93:5
[INFO] [stderr]    |
[INFO] [stderr] 93 |     Control,
[INFO] [stderr]    |     ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `input_line`
[INFO] [stderr]   --> src/main.rs:16:1
[INFO] [stderr]    |
[INFO] [stderr] 16 | fn input_line(prompt: &str) -> Result<String, std::io::Error> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `main_cmdline`
[INFO] [stderr]   --> src/main.rs:68:1
[INFO] [stderr]    |
[INFO] [stderr] 68 | fn main_cmdline() {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 31s
[INFO] running `"docker" "inspect" "055151fa90ab81268991826d39523d8b0a12499fdea408e8e2d48dfd4c36fc02"`
[INFO] running `"docker" "rm" "-f" "055151fa90ab81268991826d39523d8b0a12499fdea408e8e2d48dfd4c36fc02"`
[INFO] [stdout] 055151fa90ab81268991826d39523d8b0a12499fdea408e8e2d48dfd4c36fc02