[INFO] updating cached repository Geal/grad
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/Geal/grad
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/Geal/grad" "work/ex/pr-58592/sources/master#f66e4697ae286985ddefc53c3a047614568458bb/gh/Geal/grad"`
[INFO] [stderr] Cloning into 'work/ex/pr-58592/sources/master#f66e4697ae286985ddefc53c3a047614568458bb/gh/Geal/grad'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/Geal/grad" "work/ex/pr-58592/sources/try#c3b22200e6f5b70eb1f99ae6944d989ae17a458a/gh/Geal/grad"`
[INFO] [stderr] Cloning into 'work/ex/pr-58592/sources/try#c3b22200e6f5b70eb1f99ae6944d989ae17a458a/gh/Geal/grad'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 995c8051062e924283d41bf79c65aa244c376a22
[INFO] sha for GitHub repo Geal/grad: 995c8051062e924283d41bf79c65aa244c376a22
[INFO] validating manifest of Geal/grad on toolchain master#f66e4697ae286985ddefc53c3a047614568458bb
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+f66e4697ae286985ddefc53c3a047614568458bb-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of Geal/grad on toolchain try#c3b22200e6f5b70eb1f99ae6944d989ae17a458a
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c3b22200e6f5b70eb1f99ae6944d989ae17a458a-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing Geal/grad
[INFO] finished frobbing Geal/grad
[INFO] frobbed toml for Geal/grad written to work/ex/pr-58592/sources/master#f66e4697ae286985ddefc53c3a047614568458bb/gh/Geal/grad/Cargo.toml
[INFO] started frobbing Geal/grad
[INFO] finished frobbing Geal/grad
[INFO] frobbed toml for Geal/grad written to work/ex/pr-58592/sources/try#c3b22200e6f5b70eb1f99ae6944d989ae17a458a/gh/Geal/grad/Cargo.toml
[INFO] crate Geal/grad has a lockfile. skipping
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+f66e4697ae286985ddefc53c3a047614568458bb-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c3b22200e6f5b70eb1f99ae6944d989ae17a458a-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on the registry index
[INFO] [stderr]     Blocking waiting for file lock on the registry index
[INFO] checking Geal/grad against master#f66e4697ae286985ddefc53c3a047614568458bb for pr-58592
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-58592/worker-0/master#f66e4697ae286985ddefc53c3a047614568458bb:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-58592/sources/master#f66e4697ae286985ddefc53c3a047614568458bb/gh/Geal/grad:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/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" "+f66e4697ae286985ddefc53c3a047614568458bb-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 3464fd4ad72ca532c875afcbbed513cdc1a4a333f4a3412b52ff114b535659e3
[INFO] running `"docker" "start" "-a" "3464fd4ad72ca532c875afcbbed513cdc1a4a333f4a3412b52ff114b535659e3"`
[INFO] [stderr]     Blocking waiting for file lock on the registry index
[INFO] [stderr]     Checking nom v4.0.0
[INFO] [stderr]     Checking want v0.0.6
[INFO] [stderr]     Checking tokio-io v0.1.8
[INFO] [stderr]     Checking input_buffer v0.2.0
[INFO] [stderr]     Checking sha-1 v0.7.0
[INFO] [stderr]     Checking tokio-threadpool v0.1.6
[INFO] [stderr]     Checking pretty_env_logger v0.2.4
[INFO] [stderr]     Checking tungstenite v0.6.0
[INFO] [stderr]     Checking tokio-reactor v0.1.4
[INFO] [stderr]     Checking tokio-codec v0.1.0
[INFO] [stderr]     Checking h2 v0.1.12
[INFO] [stderr]     Checking tokio-fs v0.1.3
[INFO] [stderr]     Checking tokio-uds v0.2.1
[INFO] [stderr]     Checking tokio-udp v0.1.2
[INFO] [stderr]     Checking tokio-tcp v0.1.1
[INFO] [stderr]     Checking tokio v0.1.8
[INFO] [stderr]     Checking hyper v0.12.8
[INFO] [stderr]     Checking warp v0.1.2
[INFO] [stderr]     Checking grad v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused imports: `Response`, `StatusCode`
[INFO] [stderr]   --> src/main.rs:19:18
[INFO] [stderr]    |
[INFO] [stderr] 19 | use warp::http::{Response,StatusCode};
[INFO] [stderr]    |                  ^^^^^^^^ ^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around method argument
[INFO] [stderr]   --> src/main.rs:87:29
[INFO] [stderr]    |
[INFO] [stderr] 87 |     warp::serve(routes).run((server));
[INFO] [stderr]    |                             ^^^^^^^^ help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_parens)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `Response`, `StatusCode`
[INFO] [stderr]   --> src/main.rs:19:18
[INFO] [stderr]    |
[INFO] [stderr] 19 | use warp::http::{Response,StatusCode};
[INFO] [stderr]    |                  ^^^^^^^^ ^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around method argument
[INFO] [stderr]   --> src/main.rs:87:29
[INFO] [stderr]    |
[INFO] [stderr] 87 |     warp::serve(routes).run((server));
[INFO] [stderr]    |                             ^^^^^^^^ help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_parens)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `NoneAggregator`
[INFO] [stderr]    --> src/metrics/mod.rs:172:1
[INFO] [stderr]     |
[INFO] [stderr] 172 | pub struct NoneAggregator<T: Iterator<Item=Value>> {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `from`
[INFO] [stderr]    --> src/metrics/mod.rs:177:3
[INFO] [stderr]     |
[INFO] [stderr] 177 |   pub fn from(iterator: T) -> Self {
[INFO] [stderr]     |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `send_test`
[INFO] [stderr]   --> src/main.rs:90:1
[INFO] [stderr]    |
[INFO] [stderr] 90 | fn send_test() -> Result<String, warp::Rejection> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/main.rs:125:3
[INFO] [stderr]     |
[INFO] [stderr] 125 |   write!(&mut s, "{} series, {} values\n", state.series.keys().count(), state.counter);
[INFO] [stderr]     |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_must_use)] on by default
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]     = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/main.rs:128:7
[INFO] [stderr]     |
[INFO] [stderr] 128 |       write!(&mut s, "\n{}[{}]: {:?}", key, count, metric_type);
[INFO] [stderr]     |       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]     = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/main.rs:130:9
[INFO] [stderr]     |
[INFO] [stderr] 130 |         write!(&mut s, ", {}={}", tag.key, tag.value);
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]     = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `NoneAggregator`
[INFO] [stderr]    --> src/metrics/mod.rs:172:1
[INFO] [stderr]     |
[INFO] [stderr] 172 | pub struct NoneAggregator<T: Iterator<Item=Value>> {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `from`
[INFO] [stderr]    --> src/metrics/mod.rs:177:3
[INFO] [stderr]     |
[INFO] [stderr] 177 |   pub fn from(iterator: T) -> Self {
[INFO] [stderr]     |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `send_test`
[INFO] [stderr]   --> src/main.rs:90:1
[INFO] [stderr]    |
[INFO] [stderr] 90 | fn send_test() -> Result<String, warp::Rejection> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/main.rs:125:3
[INFO] [stderr]     |
[INFO] [stderr] 125 |   write!(&mut s, "{} series, {} values\n", state.series.keys().count(), state.counter);
[INFO] [stderr]     |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_must_use)] on by default
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]     = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/main.rs:128:7
[INFO] [stderr]     |
[INFO] [stderr] 128 |       write!(&mut s, "\n{}[{}]: {:?}", key, count, metric_type);
[INFO] [stderr]     |       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]     = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/main.rs:130:9
[INFO] [stderr]     |
[INFO] [stderr] 130 |         write!(&mut s, ", {}={}", tag.key, tag.value);
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]     = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 25.38s
[INFO] running `"docker" "inspect" "3464fd4ad72ca532c875afcbbed513cdc1a4a333f4a3412b52ff114b535659e3"`
[INFO] running `"docker" "rm" "-f" "3464fd4ad72ca532c875afcbbed513cdc1a4a333f4a3412b52ff114b535659e3"`
[INFO] [stdout] 3464fd4ad72ca532c875afcbbed513cdc1a4a333f4a3412b52ff114b535659e3