[INFO] cloning repository https://github.com/devPav/Life-times--Generics--Traits
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/devPav/Life-times--Generics--Traits" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FdevPav%2FLife-times--Generics--Traits", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FdevPav%2FLife-times--Generics--Traits'...
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[INFO] [stdout] 644e7be7a9082ec43a8ba327d302d65f6cf6d816
[INFO] checking devPav/Life-times--Generics--Traits against try#4797991aa2efb6d658150f10425b3f3b5d10eceb for pr-143193
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FdevPav%2FLife-times--Generics--Traits" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/devPav/Life-times--Generics--Traits
[INFO] finished tweaking git repo https://github.com/devPav/Life-times--Generics--Traits
[INFO] tweaked toml for git repo https://github.com/devPav/Life-times--Generics--Traits written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/devPav/Life-times--Generics--Traits on toolchain 4797991aa2efb6d658150f10425b3f3b5d10eceb
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4797991aa2efb6d658150f10425b3f3b5d10eceb" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/devPav/Life-times--Generics--Traits 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" "+4797991aa2efb6d658150f10425b3f3b5d10eceb" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] [stderr]     Blocking waiting for file lock on package cache
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[INFO] [stdout] 5f10140d65e744ff179f7a6ccf08706799fb5ceb2243168d27551f3502e79040
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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:cf8efcab8866f2cf4285301c7418e2f4f2a9b088c91ba69c40d5b659f81557f7" "/opt/rustwide/cargo-home/bin/cargo" "+4797991aa2efb6d658150f10425b3f3b5d10eceb" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1886843ad4a2b2a503ea6420b5d19550479421adb613814269a631ac19ce7453
[INFO] running `Command { std: "docker" "start" "-a" "1886843ad4a2b2a503ea6420b5d19550479421adb613814269a631ac19ce7453", kill_on_drop: false }`
[INFO] [stderr]     Checking generics v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::fmt::Display`
[INFO] [stdout]  --> src/traits_test.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::fmt::Display;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout] help: if this is a test module, consider adding a `#[cfg(test)]` to the containing module
[INFO] [stdout]  --> src/main.rs:5:1
[INFO] [stdout]   |
[INFO] [stdout] 5 | mod traits_test;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::fmt::Display`
[INFO] [stdout]  --> src/traits_test.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::fmt::Display;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> src/life_times_test.rs:38:9
[INFO] [stdout]    |
[INFO] [stdout] 38 |     let i = ImportantExcerpt {
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s`
[INFO] [stdout]   --> src/life_times_test.rs:42:9
[INFO] [stdout]    |
[INFO] [stdout] 42 |     let s: &'static str = "I have static life time";
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `y`
[INFO] [stdout]   --> src/life_times_test.rs:51:33
[INFO] [stdout]    |
[INFO] [stdout] 51 | fn always_first<'a>(x: &'a str, y: &str) -> &'a str {
[INFO] [stdout]    |                                 ^ help: if this is intentional, prefix it with an underscore: `_y`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> src/life_times_test.rs:38:9
[INFO] [stdout]    |
[INFO] [stdout] 38 |     let i = ImportantExcerpt {
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s`
[INFO] [stdout]   --> src/life_times_test.rs:42:9
[INFO] [stdout]    |
[INFO] [stdout] 42 |     let s: &'static str = "I have static life time";
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `float`
[INFO] [stdout]   --> src/main.rs:55:9
[INFO] [stdout]    |
[INFO] [stdout] 55 |     let float = Point { x: 1.0, y: 4.0 };
[INFO] [stdout]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_float`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `y`
[INFO] [stdout]   --> src/life_times_test.rs:51:33
[INFO] [stdout]    |
[INFO] [stdout] 51 | fn always_first<'a>(x: &'a str, y: &str) -> &'a str {
[INFO] [stdout]    |                                 ^ help: if this is intentional, prefix it with an underscore: `_y`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `float`
[INFO] [stdout]   --> src/main.rs:55:9
[INFO] [stdout]    |
[INFO] [stdout] 55 |     let float = Point { x: 1.0, y: 4.0 };
[INFO] [stdout]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_float`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `item`
[INFO] [stdout]    --> src/main.rs:105:21
[INFO] [stdout]     |
[INFO] [stdout] 105 | pub fn notiy3<T, U>(item: T, item2: U) -> i32 
[INFO] [stdout]     |                     ^^^^ help: if this is intentional, prefix it with an underscore: `_item`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `item2`
[INFO] [stdout]    --> src/main.rs:105:30
[INFO] [stdout]     |
[INFO] [stdout] 105 | pub fn notiy3<T, U>(item: T, item2: U) -> i32 
[INFO] [stdout]     |                              ^^^^^ help: if this is intentional, prefix it with an underscore: `_item2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `distance_from_origin` is never used
[INFO] [stdout]   --> src/main.rs:18:8
[INFO] [stdout]    |
[INFO] [stdout] 17 | impl Point<f32, f32> {
[INFO] [stdout]    | -------------------- method in this implementation
[INFO] [stdout] 18 |     fn distance_from_origin(&self) -> f32 {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `headline`, `location`, and `content` are never read
[INFO] [stdout]   --> src/traits_test.rs:10:9
[INFO] [stdout]    |
[INFO] [stdout] 9  | pub struct NewsArticle {
[INFO] [stdout]    |            ----------- fields in this struct
[INFO] [stdout] 10 |     pub headline: String,
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout] 11 |     pub location: String,
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout] 12 |     pub author: String,
[INFO] [stdout] 13 |     pub content: String,
[INFO] [stdout]    |         ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `content`, `reply`, and `retweet` are never read
[INFO] [stdout]   --> src/traits_test.rs:22:9
[INFO] [stdout]    |
[INFO] [stdout] 20 | pub struct Tweet {
[INFO] [stdout]    |            ----- fields in this struct
[INFO] [stdout] 21 |     pub username: String,
[INFO] [stdout] 22 |     pub content: String,
[INFO] [stdout]    |         ^^^^^^^
[INFO] [stdout] 23 |     pub reply: bool,
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout] 24 |     pub retweet: bool,
[INFO] [stdout]    |         ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `longest_with_an_announcement` is never used
[INFO] [stdout]  --> src/life_times_test.rs:2:4
[INFO] [stdout]   |
[INFO] [stdout] 2 | fn longest_with_an_announcement<'a, T>(x: &'a str, y: &'a str, ann: T) -> &'a str
[INFO] [stdout]   |    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `part` is never read
[INFO] [stdout]   --> src/life_times_test.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 14 | struct ImportantExcerpt<'a> {
[INFO] [stdout]    |        ---------------- field in this struct
[INFO] [stdout] 15 |     part: &'a str,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `level` and `announce_and_retur_part` are never used
[INFO] [stdout]   --> src/life_times_test.rs:18:8
[INFO] [stdout]    |
[INFO] [stdout] 17 | impl<'a> ImportantExcerpt<'a> {
[INFO] [stdout]    | ----------------------------- methods in this implementation
[INFO] [stdout] 18 |     fn level(&self) -> i32 {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 21 |     fn announce_and_retur_part(&self, announcement: &str) -> &str {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `always_first` is never used
[INFO] [stdout]   --> src/life_times_test.rs:51:4
[INFO] [stdout]    |
[INFO] [stdout] 51 | fn always_first<'a>(x: &'a str, y: &str) -> &'a str {
[INFO] [stdout]    |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `item`
[INFO] [stdout]    --> src/main.rs:105:21
[INFO] [stdout]     |
[INFO] [stdout] 105 | pub fn notiy3<T, U>(item: T, item2: U) -> i32 
[INFO] [stdout]     |                     ^^^^ help: if this is intentional, prefix it with an underscore: `_item`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `item2`
[INFO] [stdout]    --> src/main.rs:105:30
[INFO] [stdout]     |
[INFO] [stdout] 105 | pub fn notiy3<T, U>(item: T, item2: U) -> i32 
[INFO] [stdout]     |                              ^^^^^ help: if this is intentional, prefix it with an underscore: `_item2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `distance_from_origin` is never used
[INFO] [stdout]   --> src/main.rs:18:8
[INFO] [stdout]    |
[INFO] [stdout] 17 | impl Point<f32, f32> {
[INFO] [stdout]    | -------------------- method in this implementation
[INFO] [stdout] 18 |     fn distance_from_origin(&self) -> f32 {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `headline`, `location`, and `content` are never read
[INFO] [stdout]   --> src/traits_test.rs:10:9
[INFO] [stdout]    |
[INFO] [stdout] 9  | pub struct NewsArticle {
[INFO] [stdout]    |            ----------- fields in this struct
[INFO] [stdout] 10 |     pub headline: String,
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout] 11 |     pub location: String,
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout] 12 |     pub author: String,
[INFO] [stdout] 13 |     pub content: String,
[INFO] [stdout]    |         ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `content`, `reply`, and `retweet` are never read
[INFO] [stdout]   --> src/traits_test.rs:22:9
[INFO] [stdout]    |
[INFO] [stdout] 20 | pub struct Tweet {
[INFO] [stdout]    |            ----- fields in this struct
[INFO] [stdout] 21 |     pub username: String,
[INFO] [stdout] 22 |     pub content: String,
[INFO] [stdout]    |         ^^^^^^^
[INFO] [stdout] 23 |     pub reply: bool,
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout] 24 |     pub retweet: bool,
[INFO] [stdout]    |         ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `longest_with_an_announcement` is never used
[INFO] [stdout]  --> src/life_times_test.rs:2:4
[INFO] [stdout]   |
[INFO] [stdout] 2 | fn longest_with_an_announcement<'a, T>(x: &'a str, y: &'a str, ann: T) -> &'a str
[INFO] [stdout]   |    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `part` is never read
[INFO] [stdout]   --> src/life_times_test.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 14 | struct ImportantExcerpt<'a> {
[INFO] [stdout]    |        ---------------- field in this struct
[INFO] [stdout] 15 |     part: &'a str,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `level` and `announce_and_retur_part` are never used
[INFO] [stdout]   --> src/life_times_test.rs:18:8
[INFO] [stdout]    |
[INFO] [stdout] 17 | impl<'a> ImportantExcerpt<'a> {
[INFO] [stdout]    | ----------------------------- methods in this implementation
[INFO] [stdout] 18 |     fn level(&self) -> i32 {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 21 |     fn announce_and_retur_part(&self, announcement: &str) -> &str {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `always_first` is never used
[INFO] [stdout]   --> src/life_times_test.rs:51:4
[INFO] [stdout]    |
[INFO] [stdout] 51 | fn always_first<'a>(x: &'a str, y: &str) -> &'a str {
[INFO] [stdout]    |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.08s
[INFO] running `Command { std: "docker" "inspect" "1886843ad4a2b2a503ea6420b5d19550479421adb613814269a631ac19ce7453", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1886843ad4a2b2a503ea6420b5d19550479421adb613814269a631ac19ce7453", kill_on_drop: false }`
[INFO] [stdout] 1886843ad4a2b2a503ea6420b5d19550479421adb613814269a631ac19ce7453