[INFO] cloning repository https://github.com/Nazam-Kalsi/rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Nazam-Kalsi/rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNazam-Kalsi%2Frust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNazam-Kalsi%2Frust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 6cf7035db43552002ee5f0d8206ccbe456cf10cc
[INFO] checking Nazam-Kalsi/rust against 3154cc1a3e6424e44f438a95007d043ed5ceaaf6+rustflags=-Znext-solver=coherence for pr-133502-30
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNazam-Kalsi%2Frust" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/Nazam-Kalsi/rust
[INFO] finished tweaking git repo https://github.com/Nazam-Kalsi/rust
[INFO] tweaked toml for git repo https://github.com/Nazam-Kalsi/rust written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/Nazam-Kalsi/rust on toolchain 3154cc1a3e6424e44f438a95007d043ed5ceaaf6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3154cc1a3e6424e44f438a95007d043ed5ceaaf6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/Nazam-Kalsi/rust 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" "+3154cc1a3e6424e44f438a95007d043ed5ceaaf6" "fetch" "--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-6-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:77db811e55d90add9212f6832c23229e3de5f1c1f9905e8cb07319ea15df73ac" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] d6994b20b8a0ff853fb7e9c9e998484558c2cacaf56ac76de8c49d73cfe1ed5f
[INFO] running `Command { std: "docker" "start" "d6994b20b8a0ff853fb7e9c9e998484558c2cacaf56ac76de8c49d73cfe1ed5f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d6994b20b8a0ff853fb7e9c9e998484558c2cacaf56ac76de8c49d73cfe1ed5f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "d6994b20b8a0ff853fb7e9c9e998484558c2cacaf56ac76de8c49d73cfe1ed5f" "/opt/rustwide/cargo-home/bin/cargo" "+3154cc1a3e6424e44f438a95007d043ed5ceaaf6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d6994b20b8a0ff853fb7e9c9e998484558c2cacaf56ac76de8c49d73cfe1ed5f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid -Znext-solver=coherence" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-w" "/opt/rustwide/workdir" "--user" "0:0" "d6994b20b8a0ff853fb7e9c9e998484558c2cacaf56ac76de8c49d73cfe1ed5f" "/opt/rustwide/cargo-home/bin/cargo" "+3154cc1a3e6424e44f438a95007d043ed5ceaaf6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
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[INFO] [stdout] warning: unused variable: `no_summary`
[INFO] [stdout]   --> src/bin/trait2.rs:46:6
[INFO] [stdout]    |
[INFO] [stdout] 46 |  let no_summary = WithoutSummarizeTrait{
[INFO] [stdout]    |      ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_no_summary`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `u`
[INFO] [stdout]   --> src/bin/trait2.rs:65:33
[INFO] [stdout]    |
[INFO] [stdout] 65 | fn trait_as_argument<T:Summary>(u:T){
[INFO] [stdout]    |                                 ^ help: if this is intentional, prefix it with an underscore: `_u`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `item`
[INFO] [stdout]   --> src/bin/trait2.rs:70:34
[INFO] [stdout]    |
[INFO] [stdout] 70 | fn trait_as_argument_another_way(item:impl Summary){
[INFO] [stdout]    |                                  ^^^^ help: if this is intentional, prefix it with an underscore: `_item`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `name` and `age` are never read
[INFO] [stdout]   --> src/bin/trait2.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 15 | struct Test{
[INFO] [stdout]    |        ---- fields in this struct
[INFO] [stdout] 16 |     name:String,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 17 |     age:u32,
[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 `text` is never read
[INFO] [stdout]   --> src/bin/trait2.rs:21:5
[INFO] [stdout]    |
[INFO] [stdout] 20 | struct WithoutSummarizeTrait {
[INFO] [stdout]    |        --------------------- field in this struct
[INFO] [stdout] 21 |     text:String,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `trait_as_argument_another_way` is never used
[INFO] [stdout]   --> src/bin/trait2.rs:70:4
[INFO] [stdout]    |
[INFO] [stdout] 70 | fn trait_as_argument_another_way(item:impl Summary){
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0597]: `n` does not live long enough
[INFO] [stdout]   --> src/bin/struct_lifetime.rs:11:18
[INFO] [stdout]    |
[INFO] [stdout]  9 |         let n= "nazam".to_string();
[INFO] [stdout]    |             - binding `n` declared here
[INFO] [stdout] 10 |         u = User{
[INFO] [stdout] 11 |             name:&n
[INFO] [stdout]    |                  ^^ borrowed value does not live long enough
[INFO] [stdout] 12 |         };
[INFO] [stdout] 13 |     }
[INFO] [stdout]    |     - `n` dropped here while still borrowed
[INFO] [stdout] 14 |         println!("{}",u.name);
[INFO] [stdout]    |                       ------ borrow later used here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0597`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `l1` (bin "struct_lifetime" test) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: unused import: `std::time::Duration`
[INFO] [stdout]  --> src/bin/multithreading.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::time::Duration;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::string`
[INFO] [stdout]  --> src/bin/trait.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::string;
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0597]: `b` does not live long enough
[INFO] [stdout]   --> src/bin/lifetimes.rs:43:56
[INFO] [stdout]    |
[INFO] [stdout] 36 |         let b = "larger_string".to_string();
[INFO] [stdout]    |             - binding `b` declared here
[INFO] [stdout] ...
[INFO] [stdout] 43 |         longer_with_lifespan = larger_len_lifespan(&a, &b);
[INFO] [stdout]    |                                                        ^^ borrowed value does not live long enough
[INFO] [stdout] 44 |     }
[INFO] [stdout]    |     - `b` dropped here while still borrowed
[INFO] [stdout] ...
[INFO] [stdout] 51 |     println!("{}", longer_with_lifespan);
[INFO] [stdout]    |                    -------------------- borrow later used here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0597`.
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `data`
[INFO] [stdout]   --> src/bin/message_passing.rs:59:10
[INFO] [stdout]    |
[INFO] [stdout] 59 |     let  data:Vec<i32> = vec![1,2,3,4,5].into_iter().filter(|x| x%2==0).collect();
[INFO] [stdout]    |          ^^^^ help: if this is intentional, prefix it with an underscore: `_data`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `c` is assigned to, but never used
[INFO] [stdout]  --> src/bin/multithreading.rs:9:13
[INFO] [stdout]   |
[INFO] [stdout] 9 |         let mut c = 11;
[INFO] [stdout]   |             ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: consider using `_c` instead
[INFO] [stdout]   = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> src/bin/multithreading.rs:10:13
[INFO] [stdout]    |
[INFO] [stdout] 10 |         for i in 1..100000 {
[INFO] [stdout]    |             ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `j`
[INFO] [stdout]   --> src/bin/multithreading.rs:11:17
[INFO] [stdout]    |
[INFO] [stdout] 11 |             for j in 0..1000000{
[INFO] [stdout]    |                 ^ help: if this is intentional, prefix it with an underscore: `_j`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `c` is never read
[INFO] [stdout]   --> src/bin/multithreading.rs:12:17
[INFO] [stdout]    |
[INFO] [stdout] 12 |                 c+=1;
[INFO] [stdout]    |                 ^^^^ this value is reassigned later and never used
[INFO] [stdout] 13 |                 c-=1;
[INFO] [stdout]    |                 ---- `c` is overwritten here before the previous value is read
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `c` is never read
[INFO] [stdout]   --> src/bin/multithreading.rs:13:17
[INFO] [stdout]    |
[INFO] [stdout] 13 |                 c-=1;
[INFO] [stdout]    |                 ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `c` is assigned to, but never used
[INFO] [stdout]   --> src/bin/multithreading.rs:28:9
[INFO] [stdout]    |
[INFO] [stdout] 28 |     let mut c = 12;
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: consider using `_c` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> src/bin/multithreading.rs:29:9
[INFO] [stdout]    |
[INFO] [stdout] 29 |     for i in 1..1000000 {
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `j`
[INFO] [stdout]   --> src/bin/multithreading.rs:30:13
[INFO] [stdout]    |
[INFO] [stdout] 30 |         for j in 0..1000000{
[INFO] [stdout]    |             ^ help: if this is intentional, prefix it with an underscore: `_j`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `c` is never read
[INFO] [stdout]   --> src/bin/multithreading.rs:31:17
[INFO] [stdout]    |
[INFO] [stdout] 31 |                 c+=1;
[INFO] [stdout]    |                 ^^^^ this value is reassigned later and never used
[INFO] [stdout] 32 |                 c-=1;
[INFO] [stdout]    |                 ---- `c` is overwritten here before the previous value is read
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `c` is never read
[INFO] [stdout]   --> src/bin/multithreading.rs:32:17
[INFO] [stdout]    |
[INFO] [stdout] 32 |                 c-=1;
[INFO] [stdout]    |                 ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `l1` (bin "lifetimes" test) due to 1 previous error
[INFO] [stdout] error[E0277]: the trait bound `User: Fix` is not satisfied
[INFO] [stdout]   --> src/bin/trait.rs:65:25
[INFO] [stdout]    |
[INFO] [stdout] 65 | println!("{}",need_impl(user));
[INFO] [stdout]    |               --------- ^^^^ unsatisfied trait bound
[INFO] [stdout]    |               |
[INFO] [stdout]    |               required by a bound introduced by this call
[INFO] [stdout]    |
[INFO] [stdout] help: the trait `Fix` is not implemented for `User`
[INFO] [stdout]   --> src/bin/trait.rs:15:1
[INFO] [stdout]    |
[INFO] [stdout] 15 | struct User {
[INFO] [stdout]    | ^^^^^^^^^^^
[INFO] [stdout] help: the trait `Fix` is implemented for `Admin`
[INFO] [stdout]   --> src/bin/trait.rs:26:1
[INFO] [stdout]    |
[INFO] [stdout] 26 | impl Fix for Admin {}
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] note: required by a bound in `need_impl`
[INFO] [stdout]   --> src/bin/trait.rs:41:24
[INFO] [stdout]    |
[INFO] [stdout] 41 | fn need_impl<T:Summary+Fix>(u:T) ->String{
[INFO] [stdout]    |                        ^^^ required by this bound in `need_impl`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0277`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `l1` (bin "trait") due to 1 previous error; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "d6994b20b8a0ff853fb7e9c9e998484558c2cacaf56ac76de8c49d73cfe1ed5f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d6994b20b8a0ff853fb7e9c9e998484558c2cacaf56ac76de8c49d73cfe1ed5f", kill_on_drop: false }`
[INFO] [stdout] d6994b20b8a0ff853fb7e9c9e998484558c2cacaf56ac76de8c49d73cfe1ed5f
