[INFO] cloning repository https://github.com/Geal/grad
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Geal/grad" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FGeal%2Fgrad", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FGeal%2Fgrad'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 995c8051062e924283d41bf79c65aa244c376a22
[INFO] checking Geal/grad against beta-2020-07-24 for pr-75494-beta
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FGeal%2Fgrad" "/workspace/builds/worker-5/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Geal/grad on toolchain beta-2020-07-24
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Geal/grad
[INFO] finished tweaking git repo https://github.com/Geal/grad
[INFO] tweaked toml for git repo https://github.com/Geal/grad written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/Geal/grad already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 28ee74f206e970810e770b8f511ba2781995760e8193939d6e9199326b34e6f6
[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" "28ee74f206e970810e770b8f511ba2781995760e8193939d6e9199326b34e6f6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "28ee74f206e970810e770b8f511ba2781995760e8193939d6e9199326b34e6f6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "28ee74f206e970810e770b8f511ba2781995760e8193939d6e9199326b34e6f6", kill_on_drop: false }`
[INFO] [stdout] 28ee74f206e970810e770b8f511ba2781995760e8193939d6e9199326b34e6f6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 2d39bd32105117cee92260ccbba21f717235f3d3c21275d4c72ab0e00f791a33
[INFO] running `Command { std: "docker" "start" "-a" "2d39bd32105117cee92260ccbba21f717235f3d3c21275d4c72ab0e00f791a33", kill_on_drop: false }`
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[INFO] [stdout] warning: unused imports: `Response`, `StatusCode`
[INFO] [stdout]   --> src/main.rs:19:18
[INFO] [stdout]    |
[INFO] [stdout] 19 | use warp::http::{Response,StatusCode};
[INFO] [stdout]    |                  ^^^^^^^^ ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around method argument
[INFO] [stdout]   --> src/main.rs:87:29
[INFO] [stdout]    |
[INFO] [stdout] 87 |     warp::serve(routes).run((server));
[INFO] [stdout]    |                             ^^^^^^^^ help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Response`, `StatusCode`
[INFO] [stdout]   --> src/main.rs:19:18
[INFO] [stdout]    |
[INFO] [stdout] 19 | use warp::http::{Response,StatusCode};
[INFO] [stdout]    |                  ^^^^^^^^ ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around method argument
[INFO] [stdout]   --> src/main.rs:87:29
[INFO] [stdout]    |
[INFO] [stdout] 87 |     warp::serve(routes).run((server));
[INFO] [stdout]    |                             ^^^^^^^^ help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/metrics/mod.rs:44:15
[INFO] [stdout]    |
[INFO] [stdout] 44 |           let mut agg = SumAggregator::from(
[INFO] [stdout]    |               ----^^^
[INFO] [stdout]    |               |
[INFO] [stdout]    |               help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/metrics/mod.rs:61:15
[INFO] [stdout]    |
[INFO] [stdout] 61 |           let mut agg = MeanAggregator::from(
[INFO] [stdout]    |               ----^^^
[INFO] [stdout]    |               |
[INFO] [stdout]    |               help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/metrics/mod.rs:44:15
[INFO] [stdout]    |
[INFO] [stdout] 44 |           let mut agg = SumAggregator::from(
[INFO] [stdout]    |               ----^^^
[INFO] [stdout]    |               |
[INFO] [stdout]    |               help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/metrics/mod.rs:61:15
[INFO] [stdout]    |
[INFO] [stdout] 61 |           let mut agg = MeanAggregator::from(
[INFO] [stdout]    |               ----^^^
[INFO] [stdout]    |               |
[INFO] [stdout]    |               help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `from`
[INFO] [stdout]    --> src/metrics/mod.rs:177:10
[INFO] [stdout]     |
[INFO] [stdout] 177 |   pub fn from(iterator: T) -> Self {
[INFO] [stdout]     |          ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `send_test`
[INFO] [stdout]   --> src/main.rs:90:4
[INFO] [stdout]    |
[INFO] [stdout] 90 | fn send_test() -> Result<String, warp::Rejection> {
[INFO] [stdout]    |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/main.rs:125:3
[INFO] [stdout]     |
[INFO] [stdout] 125 |   write!(&mut s, "{} series, {} values\n", state.series.keys().count(), state.counter);
[INFO] [stdout]     |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/main.rs:128:7
[INFO] [stdout]     |
[INFO] [stdout] 128 |       write!(&mut s, "\n{}[{}]: {:?}", key, count, metric_type);
[INFO] [stdout]     |       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/main.rs:130:9
[INFO] [stdout]     |
[INFO] [stdout] 130 |         write!(&mut s, ", {}={}", tag.key, tag.value);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `from`
[INFO] [stdout]    --> src/metrics/mod.rs:177:10
[INFO] [stdout]     |
[INFO] [stdout] 177 |   pub fn from(iterator: T) -> Self {
[INFO] [stdout]     |          ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `send_test`
[INFO] [stdout]   --> src/main.rs:90:4
[INFO] [stdout]    |
[INFO] [stdout] 90 | fn send_test() -> Result<String, warp::Rejection> {
[INFO] [stdout]    |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/main.rs:125:3
[INFO] [stdout]     |
[INFO] [stdout] 125 |   write!(&mut s, "{} series, {} values\n", state.series.keys().count(), state.counter);
[INFO] [stdout]     |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/main.rs:128:7
[INFO] [stdout]     |
[INFO] [stdout] 128 |       write!(&mut s, "\n{}[{}]: {:?}", key, count, metric_type);
[INFO] [stdout]     |       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/main.rs:130:9
[INFO] [stdout]     |
[INFO] [stdout] 130 |         write!(&mut s, ", {}={}", tag.key, tag.value);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 55.65s
[INFO] running `Command { std: "docker" "inspect" "2d39bd32105117cee92260ccbba21f717235f3d3c21275d4c72ab0e00f791a33", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2d39bd32105117cee92260ccbba21f717235f3d3c21275d4c72ab0e00f791a33", kill_on_drop: false }`
[INFO] [stdout] 2d39bd32105117cee92260ccbba21f717235f3d3c21275d4c72ab0e00f791a33
