[INFO] cloning repository https://github.com/itmo/cura
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/itmo/cura" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fitmo%2Fcura", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fitmo%2Fcura'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 494e63241e74f9545af4cfa2735f38bc41137f4d
[INFO] checking itmo/cura against master#42f4793e5a514858221b07ac379029d90353913e for pr-148952
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fitmo%2Fcura" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/itmo/cura
[INFO] finished tweaking git repo https://github.com/itmo/cura
[INFO] tweaked toml for git repo https://github.com/itmo/cura written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/itmo/cura on toolchain 42f4793e5a514858221b07ac379029d90353913e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+42f4793e5a514858221b07ac379029d90353913e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/itmo/cura already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+42f4793e5a514858221b07ac379029d90353913e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+42f4793e5a514858221b07ac379029d90353913e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d0fcc5921aa2492269b6ced3fccf0695f585eb351e93d069d8d9260de58a6198
[INFO] running `Command { std: "docker" "start" "-a" "d0fcc5921aa2492269b6ced3fccf0695f585eb351e93d069d8d9260de58a6198", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d0fcc5921aa2492269b6ced3fccf0695f585eb351e93d069d8d9260de58a6198", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d0fcc5921aa2492269b6ced3fccf0695f585eb351e93d069d8d9260de58a6198", kill_on_drop: false }`
[INFO] [stdout] d0fcc5921aa2492269b6ced3fccf0695f585eb351e93d069d8d9260de58a6198
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+42f4793e5a514858221b07ac379029d90353913e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 117265a41fa3f28111462adc166410279b95ae0c5c4163da8a47151d2e807aca
[INFO] running `Command { std: "docker" "start" "-a" "117265a41fa3f28111462adc166410279b95ae0c5c4163da8a47151d2e807aca", kill_on_drop: false }`
[INFO] [stderr]     Checking cura v0.8.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/lib.rs:849:26
[INFO] [stdout]     |
[INFO] [stdout] 849 |         impl Foo for FF{};
[INFO] [stdout]     |                          ^ help: remove this semicolon
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(redundant_semicolons)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `current_time` is never used
[INFO] [stdout]    --> src/lib.rs:626:4
[INFO] [stdout]     |
[INFO] [stdout] 626 | fn current_time()->u128{
[INFO] [stdout]     |    ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `sleep` is never used
[INFO] [stdout]    --> src/lib.rs:635:4
[INFO] [stdout]     |
[INFO] [stdout] 635 | fn sleep(millis:u32){
[INFO] [stdout]     |    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lib.rs:208:17
[INFO] [stdout]     |
[INFO] [stdout] 208 |     pub fn read(&self)->ReadGuard<T>
[INFO] [stdout]     |                 ^^^^^   ^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 208 |     pub fn read(&self)->ReadGuard<'_, T>
[INFO] [stdout]     |                                   +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lib.rs:254:18
[INFO] [stdout]     |
[INFO] [stdout] 254 |     pub fn write(&self)->Guard<T>
[INFO] [stdout]     |                  ^^^^^   ^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                  |
[INFO] [stdout]     |                  the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 254 |     pub fn write(&self)->Guard<'_, T>
[INFO] [stdout]     |                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `f`
[INFO] [stdout]    --> src/lib.rs:781:13
[INFO] [stdout]     |
[INFO] [stdout] 781 |         let f=Bar{tt:tt};
[INFO] [stdout]     |             ^ help: if this is intentional, prefix it with an underscore: `_f`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `t`
[INFO] [stdout]    --> src/lib.rs:754:20
[INFO] [stdout]     |
[INFO] [stdout] 754 |         fn test<T>(t:T)
[INFO] [stdout]     |                    ^ help: if this is intentional, prefix it with an underscore: `_t`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `current_time` is never used
[INFO] [stdout]    --> src/lib.rs:626:4
[INFO] [stdout]     |
[INFO] [stdout] 626 | fn current_time()->u128{
[INFO] [stdout]     |    ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `id` is never read
[INFO] [stdout]    --> src/lib.rs:684:13
[INFO] [stdout]     |
[INFO] [stdout] 683 |         struct Foo{
[INFO] [stdout]     |                --- field in this struct
[INFO] [stdout] 684 |             id:u16,
[INFO] [stdout]     |             ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `testing` and `id` are never used
[INFO] [stdout]    --> src/lib.rs:690:20
[INFO] [stdout]     |
[INFO] [stdout] 686 |         impl Foo {
[INFO] [stdout]     |         -------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 690 |             pub fn testing(&mut self,id:u16) {
[INFO] [stdout]     |                    ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 693 |             pub fn id(&self)->u16
[INFO] [stdout]     |                    ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `EE` is never used
[INFO] [stdout]    --> src/lib.rs:759:14
[INFO] [stdout]     |
[INFO] [stdout] 759 |         enum EE
[INFO] [stdout]     |              ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `get` is never used
[INFO] [stdout]    --> src/lib.rs:766:16
[INFO] [stdout]     |
[INFO] [stdout] 764 |         trait Foo:Send+Sync
[INFO] [stdout]     |               --- method in this trait
[INFO] [stdout] 765 |         {
[INFO] [stdout] 766 |             fn get(&self)->EE
[INFO] [stdout]     |                ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `tt` is never read
[INFO] [stdout]    --> src/lib.rs:779:13
[INFO] [stdout]     |
[INFO] [stdout] 777 |         struct Bar<T:Sync+Send+?Sized>
[INFO] [stdout]     |                --- field in this struct
[INFO] [stdout] 778 |         {
[INFO] [stdout] 779 |             tt:Cura<T>,
[INFO] [stdout]     |             ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Bong` is never constructed
[INFO] [stdout]    --> src/lib.rs:817:13
[INFO] [stdout]     |
[INFO] [stdout] 814 |         enum Foo
[INFO] [stdout]     |              --- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 817 |             Bong,
[INFO] [stdout]     |             ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Foo` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Bong` is never constructed
[INFO] [stdout]    --> src/lib.rs:839:13
[INFO] [stdout]     |
[INFO] [stdout] 836 |         enum EE
[INFO] [stdout]     |              -- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 839 |             Bong,
[INFO] [stdout]     |             ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `EE` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lib.rs:208:17
[INFO] [stdout]     |
[INFO] [stdout] 208 |     pub fn read(&self)->ReadGuard<T>
[INFO] [stdout]     |                 ^^^^^   ^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 208 |     pub fn read(&self)->ReadGuard<'_, T>
[INFO] [stdout]     |                                   +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lib.rs:254:18
[INFO] [stdout]     |
[INFO] [stdout] 254 |     pub fn write(&self)->Guard<T>
[INFO] [stdout]     |                  ^^^^^   ^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                  |
[INFO] [stdout]     |                  the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 254 |     pub fn write(&self)->Guard<'_, T>
[INFO] [stdout]     |                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.31s
[INFO] running `Command { std: "docker" "inspect" "117265a41fa3f28111462adc166410279b95ae0c5c4163da8a47151d2e807aca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "117265a41fa3f28111462adc166410279b95ae0c5c4163da8a47151d2e807aca", kill_on_drop: false }`
[INFO] [stdout] 117265a41fa3f28111462adc166410279b95ae0c5c4163da8a47151d2e807aca
