[INFO] cloning repository https://github.com/Afizullah/rustlings
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Afizullah/rustlings" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAfizullah%2Frustlings", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAfizullah%2Frustlings'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 30d2d7bb7639965c03528ada24a86af0d53c7e68
[INFO] checking Afizullah/rustlings against try#73ffebff6f34db7eb167bf9edcf2afa19c3073e9 for pr-147841
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAfizullah%2Frustlings" "/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/Afizullah/rustlings
[INFO] finished tweaking git repo https://github.com/Afizullah/rustlings
[INFO] tweaked toml for git repo https://github.com/Afizullah/rustlings written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/Afizullah/rustlings on toolchain 73ffebff6f34db7eb167bf9edcf2afa19c3073e9
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+73ffebff6f34db7eb167bf9edcf2afa19c3073e9" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+73ffebff6f34db7eb167bf9edcf2afa19c3073e9" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+73ffebff6f34db7eb167bf9edcf2afa19c3073e9" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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_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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+73ffebff6f34db7eb167bf9edcf2afa19c3073e9" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 061ea2f57add22b2d90ba2436941226d3607a5382dd902494e8afd2b02065122
[INFO] running `Command { std: "docker" "start" "-a" "061ea2f57add22b2d90ba2436941226d3607a5382dd902494e8afd2b02065122", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "061ea2f57add22b2d90ba2436941226d3607a5382dd902494e8afd2b02065122", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "061ea2f57add22b2d90ba2436941226d3607a5382dd902494e8afd2b02065122", kill_on_drop: false }`
[INFO] [stdout] 061ea2f57add22b2d90ba2436941226d3607a5382dd902494e8afd2b02065122
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+73ffebff6f34db7eb167bf9edcf2afa19c3073e9" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e1ed6b7f892947dbf46363129566df7f8cf3c8ec2e0e504c3a156c67f85d6883
[INFO] running `Command { std: "docker" "start" "-a" "e1ed6b7f892947dbf46363129566df7f8cf3c8ec2e0e504c3a156c67f85d6883", kill_on_drop: false }`
[INFO] [stderr]     Checking exercises v0.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> exercises/23_conversions/from_into.rs:37:25
[INFO] [stdout]    |
[INFO] [stdout] 37 |     fn from(s: &str) -> Self {}
[INFO] [stdout]    |        ----             ^^^^ expected `Person`, found `()`
[INFO] [stdout]    |        |
[INFO] [stdout]    |        implicitly returns `()` as its body has no tail or `return` expression
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `exercises` (bin "from_into") due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] For more information about this error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] [stdout] error[E0382]: use of moved value: `tx`
[INFO] [stdout]   --> exercises/20_threads/threads3.rs:28:19
[INFO] [stdout]    |
[INFO] [stdout] 17 | fn send_tx(q: Queue, tx: mpsc::Sender<u32>) {
[INFO] [stdout]    |                      -- move occurs because `tx` has type `std::sync::mpsc::Sender<u32>`, which does not implement the `Copy` trait
[INFO] [stdout] ...
[INFO] [stdout] 20 |     thread::spawn(move || {
[INFO] [stdout]    |                   ------- value moved into closure here
[INFO] [stdout] 21 |         for val in q.first_half {
[INFO] [stdout]    |         ----------------------- inside of this loop
[INFO] [stdout] 22 |             println!("Sending {val:?}");
[INFO] [stdout] 23 |             tx.send(val).unwrap();
[INFO] [stdout]    |             -- variable moved due to use in closure
[INFO] [stdout] ...
[INFO] [stdout] 28 |     thread::spawn(move || {
[INFO] [stdout]    |                   ^^^^^^^ value used here after move
[INFO] [stdout] ...
[INFO] [stdout] 31 |             tx.send(val).unwrap();
[INFO] [stdout]    |             -- use occurs due to use in closure
[INFO] [stdout]    |
[INFO] [stdout] help: consider moving the expression out of the loop so it is only moved once
[INFO] [stdout]    |
[INFO] [stdout] 21 ~         let mut value = tx.send(val);
[INFO] [stdout] 22 ~         for val in q.first_half {
[INFO] [stdout] 23 |             println!("Sending {val:?}");
[INFO] [stdout] 24 ~             value.unwrap();
[INFO] [stdout]    |
[INFO] [stdout] help: consider cloning the value before moving it into the closure
[INFO] [stdout]    |
[INFO] [stdout] 20 ~     let value = tx.clone();
[INFO] [stdout] 21 ~     thread::spawn(move || {
[INFO] [stdout] 22 |         for val in q.first_half {
[INFO] [stdout] 23 |             println!("Sending {val:?}");
[INFO] [stdout] 24 ~             value.send(val).unwrap();
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0382`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `exercises` (bin "threads3" test) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "e1ed6b7f892947dbf46363129566df7f8cf3c8ec2e0e504c3a156c67f85d6883", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e1ed6b7f892947dbf46363129566df7f8cf3c8ec2e0e504c3a156c67f85d6883", kill_on_drop: false }`
[INFO] [stdout] e1ed6b7f892947dbf46363129566df7f8cf3c8ec2e0e504c3a156c67f85d6883
