[INFO] updating cached repository huangqian/rust-in-action
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/huangqian/rust-in-action
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/huangqian/rust-in-action" "work/ex/pr-59199/sources/master#bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7/gh/huangqian/rust-in-action"`
[INFO] [stderr] Cloning into 'work/ex/pr-59199/sources/master#bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7/gh/huangqian/rust-in-action'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/huangqian/rust-in-action" "work/ex/pr-59199/sources/try#68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b/gh/huangqian/rust-in-action"`
[INFO] [stderr] Cloning into 'work/ex/pr-59199/sources/try#68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b/gh/huangqian/rust-in-action'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 49e3c5a8876783f2632e7f565664dafc93617b99
[INFO] sha for GitHub repo huangqian/rust-in-action: 49e3c5a8876783f2632e7f565664dafc93617b99
[INFO] validating manifest of huangqian/rust-in-action on toolchain master#bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of huangqian/rust-in-action on toolchain try#68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing huangqian/rust-in-action
[INFO] removed 0 missing examples
[INFO] finished frobbing huangqian/rust-in-action
[INFO] frobbed toml for huangqian/rust-in-action written to work/ex/pr-59199/sources/master#bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7/gh/huangqian/rust-in-action/Cargo.toml
[INFO] started frobbing huangqian/rust-in-action
[INFO] removed 0 missing examples
[INFO] finished frobbing huangqian/rust-in-action
[INFO] frobbed toml for huangqian/rust-in-action written to work/ex/pr-59199/sources/try#68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b/gh/huangqian/rust-in-action/Cargo.toml
[INFO] crate huangqian/rust-in-action already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking huangqian/rust-in-action against try#68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b for pr-59199
[INFO] running `"docker" "create" "-v" "/mnt/crater-raid/crater/work/local/target-dirs/pr-59199/worker-3/try#68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b:/opt/crater/target:rw,Z" "-v" "/mnt/crater-raid/crater/work/ex/pr-59199/sources/try#68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b/gh/huangqian/rust-in-action:/opt/crater/workdir:ro,Z" "-v" "/mnt/crater-raid/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/crater-raid/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 3c8428b9a4d058a74939bb35fbad84fa6a7f9ccebd2d8ad0aaeabf32d007f548
[INFO] running `"docker" "start" "-a" "3c8428b9a4d058a74939bb35fbad84fa6a7f9ccebd2d8ad0aaeabf32d007f548"`
[INFO] [stderr] warning: An explicit [[example]] section is specified in Cargo.toml which currently
[INFO] [stderr] disables Cargo from automatically inferring other example targets.
[INFO] [stderr] This inference behavior will change in the Rust 2018 edition and the following
[INFO] [stderr] files will be included as a example target:
[INFO] [stderr] 
[INFO] [stderr] * /opt/crater/workdir/examples/orm-diesel-mysql.rs
[INFO] [stderr] 
[INFO] [stderr] This is likely to break cargo build or cargo test as these files may not be
[INFO] [stderr] ready to be compiled as a example target today. You can future-proof yourself
[INFO] [stderr] and disable this warning by adding `autoexamples = false` to your [package]
[INFO] [stderr] section. You may also move the files to a location where Cargo would not
[INFO] [stderr] automatically infer them to be a target, such as in subfolders.
[INFO] [stderr] 
[INFO] [stderr] For more information on this warning you can consult
[INFO] [stderr] https://github.com/rust-lang/cargo/issues/5330
[INFO] [stderr]     Checking tokio-io v0.1.10
[INFO] [stderr]     Checking parking_lot_core v0.3.1
[INFO] [stderr]     Checking aho-corasick v0.6.9
[INFO] [stderr]     Checking combine v3.5.2
[INFO] [stderr]     Checking parking_lot v0.6.4
[INFO] [stderr]     Checking regex v1.0.6
[INFO] [stderr]     Checking tokio-codec v0.1.1
[INFO] [stderr]     Checking tokio-reactor v0.1.6
[INFO] [stderr]     Checking tokio-tcp v0.1.2
[INFO] [stderr]     Checking mysql_common v0.9.2
[INFO] [stderr]     Checking mysql v14.1.1
[INFO] [stderr]     Checking redis v0.9.1
[INFO] [stderr]     Checking rust-in-action v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: enum is never used: `IpAddrKind`
[INFO] [stderr]  --> examples/enums.rs:7:1
[INFO] [stderr]   |
[INFO] [stderr] 7 | enum IpAddrKind{
[INFO] [stderr]   | ^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `user1`
[INFO] [stderr]   --> src/main.rs:63:9
[INFO] [stderr]    |
[INFO] [stderr] 63 |     let user1 = User{
[INFO] [stderr]    |         ^^^^^ help: consider prefixing with an underscore: `_user1`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `User`
[INFO] [stderr]   --> src/main.rs:55:1
[INFO] [stderr]    |
[INFO] [stderr] 55 | struct User{
[INFO] [stderr]    | ^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `struct_example`
[INFO] [stderr]   --> src/main.rs:62:1
[INFO] [stderr]    |
[INFO] [stderr] 62 | fn struct_example(){
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `f2`
[INFO] [stderr]   --> examples/copy.rs:23:9
[INFO] [stderr]    |
[INFO] [stderr] 23 |     let f2 = f1;
[INFO] [stderr]    |         ^^ help: consider prefixing with an underscore: `_f2`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `user1`
[INFO] [stderr]   --> src/main.rs:63:9
[INFO] [stderr]    |
[INFO] [stderr] 63 |     let user1 = User{
[INFO] [stderr]    |         ^^^^^ help: consider prefixing with an underscore: `_user1`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `User`
[INFO] [stderr]   --> src/main.rs:55:1
[INFO] [stderr]    |
[INFO] [stderr] 55 | struct User{
[INFO] [stderr]    | ^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `struct_example`
[INFO] [stderr]   --> src/main.rs:62:1
[INFO] [stderr]    |
[INFO] [stderr] 62 | fn struct_example(){
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `while_case`
[INFO] [stderr]   --> examples/loop.rs:11:1
[INFO] [stderr]    |
[INFO] [stderr] 11 | fn while_case(){
[INFO] [stderr]    | ^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `while_demo_2`
[INFO] [stderr]   --> examples/loop.rs:20:1
[INFO] [stderr]    |
[INFO] [stderr] 20 | fn while_demo_2(){
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `s2`
[INFO] [stderr]  --> examples/ownership.rs:8:9
[INFO] [stderr]   |
[INFO] [stderr] 8 |     let s2 = s1;
[INFO] [stderr]   |         ^^ help: consider prefixing with an underscore: `_s2`
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `black`
[INFO] [stderr]   --> examples/structs.rs:41:9
[INFO] [stderr]    |
[INFO] [stderr] 41 |     let black = Color(0, 0, 0);
[INFO] [stderr]    |         ^^^^^ help: consider prefixing with an underscore: `_black`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `origin`
[INFO] [stderr]   --> examples/structs.rs:42:9
[INFO] [stderr]    |
[INFO] [stderr] 42 |     let origin = Point(0, 0, 0);
[INFO] [stderr]    |         ^^^^^^ help: consider prefixing with an underscore: `_origin`
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `can_hold`
[INFO] [stderr]   --> examples/structs.rs:98:5
[INFO] [stderr]    |
[INFO] [stderr] 98 |     fn can_hold(&self, other: &Rectangle) -> bool{
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `one`
[INFO] [stderr]   --> examples/match.rs:18:9
[INFO] [stderr]    |
[INFO] [stderr] 18 |     let one = increment(None);
[INFO] [stderr]    |         ^^^ help: consider prefixing with an underscore: `_one`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Alabama`
[INFO] [stderr]   --> examples/match.rs:23:5
[INFO] [stderr]    |
[INFO] [stderr] 23 |     Alabama,
[INFO] [stderr]    |     ^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Nickel`
[INFO] [stderr]   --> examples/match.rs:29:5
[INFO] [stderr]    |
[INFO] [stderr] 29 |     Nickel,
[INFO] [stderr]    |     ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Dime`
[INFO] [stderr]   --> examples/match.rs:30:5
[INFO] [stderr]    |
[INFO] [stderr] 30 |     Dime,
[INFO] [stderr]    |     ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused `#[macro_use]` import
[INFO] [stderr]  --> examples/mysql.rs:2:1
[INFO] [stderr]   |
[INFO] [stderr] 2 | #[macro_use]
[INFO] [stderr]   | ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `Pool`, `Value`, `from_value`
[INFO] [stderr]  --> examples/mysql.rs:5:13
[INFO] [stderr]   |
[INFO] [stderr] 5 | use mysql::{Pool, Opts, OptsBuilder, from_value, Value};
[INFO] [stderr]   |             ^^^^                     ^^^^^^^^^^  ^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0277]: the trait bound `mysql::OptsBuilder: std::convert::AsRef<str>` is not satisfied
[INFO] [stderr]   --> examples/mysql.rs:42:13
[INFO] [stderr]    |
[INFO] [stderr] 42 |     builder.into()
[INFO] [stderr]    |             ^^^^ the trait `std::convert::AsRef<str>` is not implemented for `mysql::OptsBuilder`
[INFO] [stderr]    |
[INFO] [stderr]    = note: required because of the requirements on the impl of `std::convert::AsRef<str>` for `&mut mysql::OptsBuilder`
[INFO] [stderr]    = note: required because of the requirements on the impl of `std::convert::From<&mut mysql::OptsBuilder>` for `mysql::Opts`
[INFO] [stderr]    = note: required because of the requirements on the impl of `std::convert::Into<mysql::Opts>` for `&mut mysql::OptsBuilder`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0277`.
[INFO] [stderr] error: Could not compile `rust-in-action`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "3c8428b9a4d058a74939bb35fbad84fa6a7f9ccebd2d8ad0aaeabf32d007f548"`
[INFO] running `"docker" "rm" "-f" "3c8428b9a4d058a74939bb35fbad84fa6a7f9ccebd2d8ad0aaeabf32d007f548"`
[INFO] [stdout] 3c8428b9a4d058a74939bb35fbad84fa6a7f9ccebd2d8ad0aaeabf32d007f548