[INFO] cloning repository https://github.com/Guilucand/counter-stats
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Guilucand/counter-stats" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FGuilucand%2Fcounter-stats", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FGuilucand%2Fcounter-stats'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] cf030095ca28f5e76aa537551b9c97b1e575ace1
[INFO] testing Guilucand/counter-stats against beta-2022-04-10 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FGuilucand%2Fcounter-stats" "/workspace/builds/worker-88/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-88/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Guilucand/counter-stats on toolchain beta-2022-04-10
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Guilucand/counter-stats
[INFO] finished tweaking git repo https://github.com/Guilucand/counter-stats
[INFO] tweaked toml for git repo https://github.com/Guilucand/counter-stats written to /workspace/builds/worker-88/source/Cargo.toml
[INFO] crate git repo https://github.com/Guilucand/counter-stats already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-88/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-88/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 42ffaaaedb0e41d82095ddb3ba2abd5422ab986245531f2bbbf861e9180249c9
[INFO] running `Command { std: "docker" "start" "-a" "42ffaaaedb0e41d82095ddb3ba2abd5422ab986245531f2bbbf861e9180249c9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "42ffaaaedb0e41d82095ddb3ba2abd5422ab986245531f2bbbf861e9180249c9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "42ffaaaedb0e41d82095ddb3ba2abd5422ab986245531f2bbbf861e9180249c9", kill_on_drop: false }`
[INFO] [stdout] 42ffaaaedb0e41d82095ddb3ba2abd5422ab986245531f2bbbf861e9180249c9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-88/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-88/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=warn" "-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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] dc3988dd7f33ad8e21c355616558f59ec6e1de5b99754aef3536bfe502a55406
[INFO] running `Command { std: "docker" "start" "-a" "dc3988dd7f33ad8e21c355616558f59ec6e1de5b99754aef3536bfe502a55406", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.119
[INFO] [stderr]    Compiling parking_lot_core v0.9.1
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling scopeguard v1.1.0
[INFO] [stderr]    Compiling smallvec v1.8.0
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling bytesize v1.1.0
[INFO] [stderr]    Compiling json v0.12.4
[INFO] [stderr]    Compiling lock_api v0.4.6
[INFO] [stderr]    Compiling parking_lot v0.12.0
[INFO] [stderr]    Compiling counter-stats v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `RwLock`
[INFO] [stdout]  --> src/counter.rs:3:26
[INFO] [stdout]   |
[INFO] [stdout] 3 | use parking_lot::{Mutex, RwLock};
[INFO] [stdout]   |                          ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Arc`
[INFO] [stdout]  --> src/counter.rs:8:17
[INFO] [stdout]   |
[INFO] [stdout] 8 | use std::sync::{Arc, Weak};
[INFO] [stdout]   |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::thread_local`
[INFO] [stdout]  --> src/counter.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use std::thread_local;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `parking_lot::lock_api::RawMutex`
[INFO] [stdout]  --> src/counter.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use parking_lot::lock_api::RawMutex;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/counter.rs:243:9
[INFO] [stdout]     |
[INFO] [stdout] 243 |     let mut counter = if is_average {
[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: unused `Result` that must be used
[INFO] [stdout]   --> src/logging.rs:60:13
[INFO] [stdout]    |
[INFO] [stdout] 60 |             writeln!(file, "{}", json_values);
[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 the macro `writeln` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 21.87s
[INFO] running `Command { std: "docker" "inspect" "dc3988dd7f33ad8e21c355616558f59ec6e1de5b99754aef3536bfe502a55406", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dc3988dd7f33ad8e21c355616558f59ec6e1de5b99754aef3536bfe502a55406", kill_on_drop: false }`
[INFO] [stdout] dc3988dd7f33ad8e21c355616558f59ec6e1de5b99754aef3536bfe502a55406
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-88/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-88/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=warn" "-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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cc0d05ee0793436b32cbf51af901a661e28706bcee2f3a95d57ae5f9c48e2c71
[INFO] running `Command { std: "docker" "start" "-a" "cc0d05ee0793436b32cbf51af901a661e28706bcee2f3a95d57ae5f9c48e2c71", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling counter-stats v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `RwLock`
[INFO] [stdout]  --> src/counter.rs:3:26
[INFO] [stdout]   |
[INFO] [stdout] 3 | use parking_lot::{Mutex, RwLock};
[INFO] [stdout]   |                          ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Arc`
[INFO] [stdout]  --> src/counter.rs:8:17
[INFO] [stdout]   |
[INFO] [stdout] 8 | use std::sync::{Arc, Weak};
[INFO] [stdout]   |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::thread_local`
[INFO] [stdout]  --> src/counter.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use std::thread_local;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `parking_lot::lock_api::RawMutex`
[INFO] [stdout]  --> src/counter.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use parking_lot::lock_api::RawMutex;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/counter.rs:243:9
[INFO] [stdout]     |
[INFO] [stdout] 243 |     let mut counter = if is_average {
[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: unused `Result` that must be used
[INFO] [stdout]   --> src/logging.rs:60:13
[INFO] [stdout]    |
[INFO] [stdout] 60 |             writeln!(file, "{}", json_values);
[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 the macro `writeln` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `RwLock`
[INFO] [stdout]  --> src/counter.rs:3:26
[INFO] [stdout]   |
[INFO] [stdout] 3 | use parking_lot::{Mutex, RwLock};
[INFO] [stdout]   |                          ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Arc`
[INFO] [stdout]  --> src/counter.rs:8:17
[INFO] [stdout]   |
[INFO] [stdout] 8 | use std::sync::{Arc, Weak};
[INFO] [stdout]   |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::thread_local`
[INFO] [stdout]  --> src/counter.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use std::thread_local;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `parking_lot::lock_api::RawMutex`
[INFO] [stdout]  --> src/counter.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use parking_lot::lock_api::RawMutex;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `sum_counter`
[INFO] [stdout]    --> src/counter.rs:258:13
[INFO] [stdout]     |
[INFO] [stdout] 258 |         let sum_counter = declare_counter_i64!("test_counter", SumMode, false);
[INFO] [stdout]     |             ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_sum_counter`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/counter.rs:243:9
[INFO] [stdout]     |
[INFO] [stdout] 243 |     let mut counter = if is_average {
[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/counter.rs:21:29
[INFO] [stdout]     |
[INFO] [stdout] 21  | ...                   let mut cvec = list.entry($name.to_string()).or_insert((Vec::new(), 0, <$crate::counter::AtomicCounter<$mode> as $c...
[INFO] [stdout]     |                           ----^^^^
[INFO] [stdout]     |                           |
[INFO] [stdout]     |                           help: remove this `mut`
[INFO] [stdout] ...
[INFO] [stdout] 258 | ...   let sum_counter = declare_counter_i64!("test_counter", SumMode, false);
[INFO] [stdout]     |                         ---------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `$crate::declare_counter_i64_impl` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/logging.rs:60:13
[INFO] [stdout]    |
[INFO] [stdout] 60 |             writeln!(file, "{}", json_values);
[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 the macro `writeln` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.81s
[INFO] [stderr]   Executable unittests src/lib.rs (/opt/rustwide/target/debug/deps/counter_stats-931a201fec3ade7d)
[INFO] running `Command { std: "docker" "inspect" "cc0d05ee0793436b32cbf51af901a661e28706bcee2f3a95d57ae5f9c48e2c71", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cc0d05ee0793436b32cbf51af901a661e28706bcee2f3a95d57ae5f9c48e2c71", kill_on_drop: false }`
[INFO] [stdout] cc0d05ee0793436b32cbf51af901a661e28706bcee2f3a95d57ae5f9c48e2c71
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-88/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-88/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=warn" "-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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] ffa65adc72097eb5974ea976fda322ede22f9e59974a581391e41da545fba909
[INFO] running `Command { std: "docker" "start" "-a" "ffa65adc72097eb5974ea976fda322ede22f9e59974a581391e41da545fba909", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `RwLock`
[INFO] [stderr]  --> src/counter.rs:3:26
[INFO] [stderr]   |
[INFO] [stderr] 3 | use parking_lot::{Mutex, RwLock};
[INFO] [stderr]   |                          ^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Arc`
[INFO] [stderr]  --> src/counter.rs:8:17
[INFO] [stderr]   |
[INFO] [stderr] 8 | use std::sync::{Arc, Weak};
[INFO] [stderr]   |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::thread_local`
[INFO] [stderr]  --> src/counter.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 | use std::thread_local;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `parking_lot::lock_api::RawMutex`
[INFO] [stderr]  --> src/counter.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use parking_lot::lock_api::RawMutex;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/counter.rs:243:9
[INFO] [stderr]     |
[INFO] [stderr] 243 |     let mut counter = if is_average {
[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: unused `Result` that must be used
[INFO] [stderr]   --> src/logging.rs:60:13
[INFO] [stderr]    |
[INFO] [stderr] 60 |             writeln!(file, "{}", json_values);
[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 the macro `writeln` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `sum_counter`
[INFO] [stderr]    --> src/counter.rs:258:13
[INFO] [stderr]     |
[INFO] [stderr] 258 |         let sum_counter = declare_counter_i64!("test_counter", SumMode, false);
[INFO] [stderr]     |             ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_sum_counter`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/counter.rs:21:29
[INFO] [stderr]     |
[INFO] [stderr] 21  | ...                   let mut cvec = list.entry($name.to_string()).or_insert((Vec::new(), 0, <$crate::counter::AtomicCounter<$mode> as $c...
[INFO] [stderr]     |                           ----^^^^
[INFO] [stderr]     |                           |
[INFO] [stderr]     |                           help: remove this `mut`
[INFO] [stderr] ...
[INFO] [stderr] 258 | ...   let sum_counter = declare_counter_i64!("test_counter", SumMode, false);
[INFO] [stderr]     |                         ---------------------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in the macro `$crate::declare_counter_i64_impl` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: `counter-stats` (lib) generated 6 warnings
[INFO] [stderr] warning: `counter-stats` (lib test) generated 8 warnings (6 duplicates)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/counter_stats-931a201fec3ade7d)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test counter::tests::alloc_test ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests counter-stats
[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; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "ffa65adc72097eb5974ea976fda322ede22f9e59974a581391e41da545fba909", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ffa65adc72097eb5974ea976fda322ede22f9e59974a581391e41da545fba909", kill_on_drop: false }`
[INFO] [stdout] ffa65adc72097eb5974ea976fda322ede22f9e59974a581391e41da545fba909