[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<Self, Self::Error> {}
[INFO] [stdout]    |        --------                            ^^^^^^^^^^^^^^^^^^^^^^^^^ expected `Result<Color, IntoColorError>`, found `()`
[INFO] [stdout]    |        |
[INFO] [stdout]    |        implicitly returns `()` as its body has no tail or `return` expression
[INFO] [stdout]    |
[INFO] [stdout]    = note:   expected enum `Result<Color, IntoColorError>`
[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<Self, Self::Error> {}
[INFO] [stdout]    |        --------                   ^^^^^^^^^^^^^^^^^^^^^^^^^ expected `Result<Color, IntoColorError>`, found `()`
[INFO] [stdout]    |        |
[INFO] [stdout]    |        implicitly returns `()` as its body has no tail or `return` expression
[INFO] [stdout]    |
[INFO] [stdout]    = note:   expected enum `Result<Color, IntoColorError>`
[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<Self, Self::Error> {}
[INFO] [stdout]    |        --------                   ^^^^^^^^^^^^^^^^^^^^^^^^^ expected `Result<Color, IntoColorError>`, found `()`
[INFO] [stdout]    |        |
[INFO] [stdout]    |        implicitly returns `()` as its body has no tail or `return` expression
[INFO] [stdout]    |
[INFO] [stdout]    = note:   expected enum `Result<Color, IntoColorError>`
[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
