[INFO] cloning repository https://github.com/gomel-tdl1/rust-sandbox [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/gomel-tdl1/rust-sandbox" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgomel-tdl1%2Frust-sandbox", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgomel-tdl1%2Frust-sandbox'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 150bef27e4e71cb0db86e0f7fff76be9afd6de01 [INFO] checking gomel-tdl1/rust-sandbox against try#db4e1d23234d93b5e96ecc768b35d9090c32cddf for pr-149901 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgomel-tdl1%2Frust-sandbox" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'... [INFO] [stderr] done. [INFO] started tweaking git repo https://github.com/gomel-tdl1/rust-sandbox [INFO] finished tweaking git repo https://github.com/gomel-tdl1/rust-sandbox [INFO] tweaked toml for git repo https://github.com/gomel-tdl1/rust-sandbox written to /workspace/builds/worker-7-tc2/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/gomel-tdl1/rust-sandbox on toolchain db4e1d23234d93b5e96ecc768b35d9090c32cddf [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+db4e1d23234d93b5e96ecc768b35d9090c32cddf" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate git repo https://github.com/gomel-tdl1/rust-sandbox 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" "+db4e1d23234d93b5e96ecc768b35d9090c32cddf" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+db4e1d23234d93b5e96ecc768b35d9090c32cddf" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 897771159ecf6d817bae3ce5d6db9941015cc417d22d85f18ae095af305a35cd [INFO] running `Command { std: "docker" "start" "-a" "897771159ecf6d817bae3ce5d6db9941015cc417d22d85f18ae095af305a35cd", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "897771159ecf6d817bae3ce5d6db9941015cc417d22d85f18ae095af305a35cd", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "897771159ecf6d817bae3ce5d6db9941015cc417d22d85f18ae095af305a35cd", kill_on_drop: false }` [INFO] [stdout] 897771159ecf6d817bae3ce5d6db9941015cc417d22d85f18ae095af305a35cd [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+db4e1d23234d93b5e96ecc768b35d9090c32cddf" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] c465aa6000593988edb2f513934abfa6e940a324d57d548a0337fdfa5d9e2db1 [INFO] running `Command { std: "docker" "start" "-a" "c465aa6000593988edb2f513934abfa6e940a324d57d548a0337fdfa5d9e2db1", kill_on_drop: false }` [INFO] [stderr] Checking exercises v0.0.0 (/opt/rustwide/workdir) [INFO] [stdout] error[E0308]: mismatched types [INFO] [stdout] --> exercises/09_strings/strings3.rs:1:28 [INFO] [stdout] | [INFO] [stdout] 1 | fn trim_me(input: &str) -> &str { [INFO] [stdout] | ------- ^^^^ expected `&str`, found `()` [INFO] [stdout] | | [INFO] [stdout] | implicitly returns `()` as its body has no tail or `return` expression [INFO] [stdout] | [INFO] [stdout] help: consider returning the local binding `input` [INFO] [stdout] | [INFO] [stdout] 1 | fn trim_me(input: &str) -> &str { [INFO] [stdout] 2 ~ input [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0308]: mismatched types [INFO] [stdout] --> exercises/09_strings/strings3.rs:5:31 [INFO] [stdout] | [INFO] [stdout] 5 | fn compose_me(input: &str) -> String { [INFO] [stdout] | ---------- ^^^^^^ expected `String`, found `()` [INFO] [stdout] | | [INFO] [stdout] | implicitly returns `()` as its body has no tail or `return` expression [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0308]: mismatched types [INFO] [stdout] --> exercises/09_strings/strings3.rs:9:31 [INFO] [stdout] | [INFO] [stdout] 9 | fn replace_me(input: &str) -> String { [INFO] [stdout] | ---------- ^^^^^^ expected `String`, found `()` [INFO] [stdout] | | [INFO] [stdout] | implicitly returns `()` as its body has no tail or `return` expression [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0425]: cannot find value `v` in this scope [INFO] [stdout] --> exercises/05_vecs/vecs1.rs:8:9 [INFO] [stdout] | [INFO] [stdout] 8 | (a, v) [INFO] [stdout] | ^ [INFO] [stdout] | [INFO] [stdout] help: a local variable with a similar name exists [INFO] [stdout] | [INFO] [stdout] 8 - (a, v) [INFO] [stdout] 8 + (a, a) [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0308]: mismatched types [INFO] [stdout] --> exercises/06_move_semantics/move_semantics5.rs:13:12 [INFO] [stdout] | [INFO] [stdout] 12 | fn string_uppercase(mut data: &String) { [INFO] [stdout] | ------- expected due to this parameter type [INFO] [stdout] 13 | data = data.to_uppercase(); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ expected `&String`, found `String` [INFO] [stdout] | [INFO] [stdout] help: you might have meant to mutate the pointed at value being passed in, instead of changing the reference in the local binding [INFO] [stdout] | [INFO] [stdout] 12 ~ fn string_uppercase(data: &mut String) { [INFO] [stdout] 13 ~ *data = data.to_uppercase(); [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0308`. [INFO] [stdout] [INFO] [stdout] error[E0308]: mismatched types [INFO] [stdout] --> exercises/23_conversions/try_from_into.rs:31:44 [INFO] [stdout] | [INFO] [stdout] 31 | fn try_from(tuple: (i16, i16, i16)) -> Result {} [INFO] [stdout] | -------- ^^^^^^^^^^^^^^^^^^^^^^^^^ expected `Result`, found `()` [INFO] [stdout] | | [INFO] [stdout] | implicitly returns `()` as its body has no tail or `return` expression [INFO] [stdout] | [INFO] [stdout] = note: expected enum `Result` [INFO] [stdout] found unit type `()` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0425`. [INFO] [stdout] [INFO] [stdout] error[E0382]: borrow of moved value: `data` [INFO] [stdout] --> exercises/06_move_semantics/move_semantics5.rs:23:22 [INFO] [stdout] | [INFO] [stdout] 19 | let data = "Rust is great!".to_string(); [INFO] [stdout] | ---- move occurs because `data` has type `String`, which does not implement the `Copy` trait [INFO] [stdout] 20 | [INFO] [stdout] 21 | get_char(data); [INFO] [stdout] | ---- value moved here [INFO] [stdout] 22 | [INFO] [stdout] 23 | string_uppercase(&data); [INFO] [stdout] | ^^^^^ value borrowed here after move [INFO] [stdout] | [INFO] [stdout] note: consider changing this parameter type in function `get_char` to borrow instead if owning the value isn't necessary [INFO] [stdout] --> exercises/06_move_semantics/move_semantics5.rs:7:19 [INFO] [stdout] | [INFO] [stdout] 7 | fn get_char(data: String) -> char { [INFO] [stdout] | -------- ^^^^^^ this parameter takes ownership of the value [INFO] [stdout] | | [INFO] [stdout] | in this function [INFO] [stdout] help: consider cloning the value if the performance cost is acceptable [INFO] [stdout] | [INFO] [stdout] 21 | get_char(data.clone()); [INFO] [stdout] | ++++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] Some errors have detailed explanations: E0308, E0382. [INFO] [stdout] [INFO] [stdout] For more information about an error, try `rustc --explain E0308`. [INFO] [stdout] [INFO] [stdout] error[E0308]: mismatched types [INFO] [stdout] --> exercises/23_conversions/try_from_into.rs:38:35 [INFO] [stdout] | [INFO] [stdout] 38 | fn try_from(arr: [i16; 3]) -> Result {} [INFO] [stdout] | -------- ^^^^^^^^^^^^^^^^^^^^^^^^^ expected `Result`, found `()` [INFO] [stdout] | | [INFO] [stdout] | implicitly returns `()` as its body has no tail or `return` expression [INFO] [stdout] | [INFO] [stdout] = note: expected enum `Result` [INFO] [stdout] found unit type `()` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0308]: mismatched types [INFO] [stdout] --> exercises/23_conversions/try_from_into.rs:46:35 [INFO] [stdout] | [INFO] [stdout] 46 | fn try_from(slice: &[i16]) -> Result {} [INFO] [stdout] | -------- ^^^^^^^^^^^^^^^^^^^^^^^^^ expected `Result`, found `()` [INFO] [stdout] | | [INFO] [stdout] | implicitly returns `()` as its body has no tail or `return` expression [INFO] [stdout] | [INFO] [stdout] = note: expected enum `Result` [INFO] [stdout] found unit type `()` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0308`. [INFO] [stdout] [INFO] [stderr] error: could not compile `exercises` (bin "move_semantics5") due to 2 previous errors [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stderr] error: could not compile `exercises` (bin "vecs1" test) due to 1 previous error [INFO] [stderr] error: could not compile `exercises` (bin "strings3" test) due to 3 previous errors [INFO] [stderr] error: could not compile `exercises` (bin "try_from_into") due to 3 previous errors [INFO] [stdout] error[E0308]: mismatched types [INFO] [stdout] --> exercises/quizzes/quiz3.rs:55:20 [INFO] [stdout] | [INFO] [stdout] 55 | grade: "A+", [INFO] [stdout] | ^^^^ expected `f32`, found `&str` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0308`. [INFO] [stdout] [INFO] [stderr] error: could not compile `exercises` (bin "quiz3" test) due to 1 previous error [INFO] running `Command { std: "docker" "inspect" "c465aa6000593988edb2f513934abfa6e940a324d57d548a0337fdfa5d9e2db1", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "c465aa6000593988edb2f513934abfa6e940a324d57d548a0337fdfa5d9e2db1", kill_on_drop: false }` [INFO] [stdout] c465aa6000593988edb2f513934abfa6e940a324d57d548a0337fdfa5d9e2db1