[INFO] updating cached repository https://github.com/Geal/grad [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] 995c8051062e924283d41bf79c65aa244c376a22 [INFO] testing Geal/grad against beta-2020-06-03 for beta-1.45-1 [INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FGeal%2Fgrad" "/workspace/builds/worker-6/source"` [INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/Geal/grad on toolchain beta-2020-06-03 [INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "read-manifest" "--manifest-path" "Cargo.toml"` [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-6/source/Cargo.toml [INFO] crate git repo https://github.com/Geal/grad already has a lockfile, it will not be regenerated [INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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=warn" "-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" "+beta-2020-06-03" "build" "--frozen"` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] 05d1de92dd75e670f6707785adec1fc9ca5b29ac6cd9b79fb23e6f89de369ba4 [INFO] running `"docker" "start" "-a" "05d1de92dd75e670f6707785adec1fc9ca5b29ac6cd9b79fb23e6f89de369ba4"` [INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted [INFO] [stderr] Compiling futures v0.1.23 [INFO] [stderr] Compiling crossbeam-utils v0.5.0 [INFO] [stderr] Compiling slab v0.4.1 [INFO] [stderr] Compiling unicode-normalization v0.1.7 [INFO] [stderr] Compiling httparse v1.3.2 [INFO] [stderr] Compiling serde v1.0.75 [INFO] [stderr] Compiling proc-macro2 v0.4.13 [INFO] [stderr] Compiling regex v1.0.4 [INFO] [stderr] Compiling utf8-ranges v1.0.1 [INFO] [stderr] Compiling string v0.1.1 [INFO] [stderr] Compiling termcolor v1.0.2 [INFO] [stderr] Compiling utf-8 v0.7.4 [INFO] [stderr] Compiling iovec v0.1.2 [INFO] [stderr] Compiling unicase v1.4.2 [INFO] [stderr] Compiling net2 v0.2.33 [INFO] [stderr] Compiling unicase v2.1.0 [INFO] [stderr] Compiling memchr v2.0.2 [INFO] [stderr] Compiling base64 v0.9.2 [INFO] [stderr] Compiling regex-syntax v0.6.2 [INFO] [stderr] Compiling humantime v1.1.1 [INFO] [stderr] Compiling bytes v0.4.9 [INFO] [stderr] Compiling smallvec v0.6.5 [INFO] [stderr] Compiling lock_api v0.1.3 [INFO] [stderr] Compiling aho-corasick v0.6.8 [INFO] [stderr] Compiling nom v4.0.0 [INFO] [stderr] Compiling mio v0.6.15 [INFO] [stderr] Compiling crossbeam-epoch v0.5.2 [INFO] [stderr] Compiling digest v0.7.5 [INFO] [stderr] Compiling parking_lot_core v0.2.14 [INFO] [stderr] Compiling mime v0.3.9 [INFO] [stderr] Compiling phf_shared v0.7.23 [INFO] [stderr] Compiling sha-1 v0.7.0 [INFO] [stderr] Compiling phf_generator v0.7.23 [INFO] [stderr] Compiling phf v0.7.23 [INFO] [stderr] Compiling http v0.1.10 [INFO] [stderr] Compiling input_buffer v0.2.0 [INFO] [stderr] Compiling crossbeam-deque v0.6.1 [INFO] [stderr] Compiling phf_codegen v0.7.23 [INFO] [stderr] Compiling tokio-executor v0.1.4 [INFO] [stderr] Compiling tokio-io v0.1.8 [INFO] [stderr] Compiling want v0.0.6 [INFO] [stderr] Compiling futures-cpupool v0.1.8 [INFO] [stderr] Compiling quote v0.6.8 [INFO] [stderr] Compiling parking_lot v0.6.3 [INFO] [stderr] Compiling mio-uds v0.6.6 [INFO] [stderr] Compiling mime_guess v2.0.0-alpha.6 [INFO] [stderr] Compiling tokio-threadpool v0.1.6 [INFO] [stderr] Compiling tokio-timer v0.2.6 [INFO] [stderr] Compiling tokio-current-thread v0.1.1 [INFO] [stderr] Compiling syn v0.14.9 [INFO] [stderr] Compiling tokio-reactor v0.1.4 [INFO] [stderr] Compiling tokio-codec v0.1.0 [INFO] [stderr] Compiling idna v0.1.5 [INFO] [stderr] Compiling tokio-udp v0.1.2 [INFO] [stderr] Compiling tokio-tcp v0.1.1 [INFO] [stderr] Compiling tokio-uds v0.2.1 [INFO] [stderr] Compiling tokio-fs v0.1.3 [INFO] [stderr] Compiling tokio v0.1.8 [INFO] [stderr] Compiling url v1.7.1 [INFO] [stderr] Compiling h2 v0.1.12 [INFO] [stderr] Compiling tungstenite v0.6.0 [INFO] [stderr] Compiling env_logger v0.5.13 [INFO] [stderr] Compiling pretty_env_logger v0.2.4 [INFO] [stderr] Compiling serde_derive v1.0.75 [INFO] [stderr] Compiling hyper v0.12.8 [INFO] [stderr] Compiling serde_json v1.0.26 [INFO] [stderr] Compiling serde_urlencoded v0.5.3 [INFO] [stderr] Compiling warp v0.1.2 [INFO] [stderr] Compiling grad v0.1.0 (/opt/rustwide/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: variable does not need to be mutable [INFO] [stderr] --> src/metrics/mod.rs:44:15 [INFO] [stderr] | [INFO] [stderr] 44 | let mut agg = SumAggregator::from( [INFO] [stderr] | ----^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_mut)]` on by default [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/metrics/mod.rs:61:15 [INFO] [stderr] | [INFO] [stderr] 61 | let mut agg = MeanAggregator::from( [INFO] [stderr] | ----^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `from` [INFO] [stderr] --> src/metrics/mod.rs:177:10 [INFO] [stderr] | [INFO] [stderr] 177 | pub fn from(iterator: T) -> Self { [INFO] [stderr] | ^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: function is never used: `send_test` [INFO] [stderr] --> src/main.rs:90:4 [INFO] [stderr] | [INFO] [stderr] 90 | fn send_test() -> Result { [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 warning originates in a macro (in Nightly builds, run with -Z 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 warning originates in a macro (in Nightly builds, run with -Z 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 warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] warning: 9 warnings emitted [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 1m 28s [INFO] running `"docker" "inspect" "05d1de92dd75e670f6707785adec1fc9ca5b29ac6cd9b79fb23e6f89de369ba4"` [INFO] running `"docker" "rm" "-f" "05d1de92dd75e670f6707785adec1fc9ca5b29ac6cd9b79fb23e6f89de369ba4"` [INFO] [stdout] 05d1de92dd75e670f6707785adec1fc9ca5b29ac6cd9b79fb23e6f89de369ba4 [INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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=warn" "-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" "+beta-2020-06-03" "test" "--frozen" "--no-run"` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] 8255e61206feb6ff500829425c444757deec14ed82df9e222c391bc516882660 [INFO] running `"docker" "start" "-a" "8255e61206feb6ff500829425c444757deec14ed82df9e222c391bc516882660"` [INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted [INFO] [stderr] Compiling grad v0.1.0 (/opt/rustwide/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: variable does not need to be mutable [INFO] [stderr] --> src/metrics/mod.rs:44:15 [INFO] [stderr] | [INFO] [stderr] 44 | let mut agg = SumAggregator::from( [INFO] [stderr] | ----^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_mut)]` on by default [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/metrics/mod.rs:61:15 [INFO] [stderr] | [INFO] [stderr] 61 | let mut agg = MeanAggregator::from( [INFO] [stderr] | ----^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `from` [INFO] [stderr] --> src/metrics/mod.rs:177:10 [INFO] [stderr] | [INFO] [stderr] 177 | pub fn from(iterator: T) -> Self { [INFO] [stderr] | ^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: function is never used: `send_test` [INFO] [stderr] --> src/main.rs:90:4 [INFO] [stderr] | [INFO] [stderr] 90 | fn send_test() -> Result { [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 warning originates in a macro (in Nightly builds, run with -Z 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 warning originates in a macro (in Nightly builds, run with -Z 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 warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] warning: 9 warnings emitted [INFO] [stderr] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 2.21s [INFO] running `"docker" "inspect" "8255e61206feb6ff500829425c444757deec14ed82df9e222c391bc516882660"` [INFO] running `"docker" "rm" "-f" "8255e61206feb6ff500829425c444757deec14ed82df9e222c391bc516882660"` [INFO] [stdout] 8255e61206feb6ff500829425c444757deec14ed82df9e222c391bc516882660 [INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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=warn" "-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" "+beta-2020-06-03" "test" "--frozen"` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] 82b2036100c2737f06eec5c1fab3dabf4a647c3e5110d079afaaf88b4dd6ab6a [INFO] running `"docker" "start" "-a" "82b2036100c2737f06eec5c1fab3dabf4a647c3e5110d079afaaf88b4dd6ab6a"` [INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted [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: variable does not need to be mutable [INFO] [stderr] --> src/metrics/mod.rs:44:15 [INFO] [stderr] | [INFO] [stderr] 44 | let mut agg = SumAggregator::from( [INFO] [stderr] | ----^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_mut)]` on by default [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/metrics/mod.rs:61:15 [INFO] [stderr] | [INFO] [stderr] 61 | let mut agg = MeanAggregator::from( [INFO] [stderr] | ----^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `from` [INFO] [stderr] --> src/metrics/mod.rs:177:10 [INFO] [stderr] | [INFO] [stderr] 177 | pub fn from(iterator: T) -> Self { [INFO] [stderr] | ^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: function is never used: `send_test` [INFO] [stderr] --> src/main.rs:90:4 [INFO] [stderr] | [INFO] [stderr] 90 | fn send_test() -> Result { [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 warning originates in a macro (in Nightly builds, run with -Z 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 warning originates in a macro (in Nightly builds, run with -Z 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 warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] warning: 9 warnings emitted [INFO] [stderr] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.44s [INFO] [stderr] Running /opt/rustwide/target/debug/deps/grad-0d564f850c0949d0 [INFO] [stdout] [INFO] [stdout] running 0 tests [INFO] [stdout] [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out [INFO] [stdout] [INFO] running `"docker" "inspect" "82b2036100c2737f06eec5c1fab3dabf4a647c3e5110d079afaaf88b4dd6ab6a"` [INFO] running `"docker" "rm" "-f" "82b2036100c2737f06eec5c1fab3dabf4a647c3e5110d079afaaf88b4dd6ab6a"` [INFO] [stdout] 82b2036100c2737f06eec5c1fab3dabf4a647c3e5110d079afaaf88b4dd6ab6a