[INFO] cloning repository https://github.com/datager/rustlings [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/datager/rustlings" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdatager%2Frustlings", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdatager%2Frustlings'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 0abf684aca5af13715de9c947c5442ab9a42519a [INFO] checking datager/rustlings against master#cb06d12710575a0d7ff71d6fe108f3bcff4f9195 for pr-128425-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdatager%2Frustlings" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'... [INFO] [stderr] done. 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[INFO] validating manifest of git repo https://github.com/datager/rustlings on toolchain cb06d12710575a0d7ff71d6fe108f3bcff4f9195 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cb06d12710575a0d7ff71d6fe108f3bcff4f9195" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/datager/rustlings [INFO] finished tweaking git repo https://github.com/datager/rustlings [INFO] tweaked toml for git repo https://github.com/datager/rustlings written to /workspace/builds/worker-7-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/datager/rustlings 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" "+cb06d12710575a0d7ff71d6fe108f3bcff4f9195" "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-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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@sha256:3959728d45483eb673ba100a951a6b9f5012970368db2a9e08e0ac9b67c8a5ad" "/opt/rustwide/cargo-home/bin/cargo" "+cb06d12710575a0d7ff71d6fe108f3bcff4f9195" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] e63eb38d74b9885f56056ef685d4fe7cf88971bb25589e4d754cc0de392c7c71 [INFO] running `Command { std: "docker" "start" "-a" "e63eb38d74b9885f56056ef685d4fe7cf88971bb25589e4d754cc0de392c7c71", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "e63eb38d74b9885f56056ef685d4fe7cf88971bb25589e4d754cc0de392c7c71", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e63eb38d74b9885f56056ef685d4fe7cf88971bb25589e4d754cc0de392c7c71", kill_on_drop: false }` [INFO] [stdout] e63eb38d74b9885f56056ef685d4fe7cf88971bb25589e4d754cc0de392c7c71 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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@sha256:3959728d45483eb673ba100a951a6b9f5012970368db2a9e08e0ac9b67c8a5ad" "/opt/rustwide/cargo-home/bin/cargo" "+cb06d12710575a0d7ff71d6fe108f3bcff4f9195" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 69656e08a6cd642b6d31056f3f0f3bfe9a918793a9ac2329b8731d449610ef6e [INFO] running `Command { std: "docker" "start" "-a" "69656e08a6cd642b6d31056f3f0f3bfe9a918793a9ac2329b8731d449610ef6e", kill_on_drop: false }` [INFO] [stderr] Checking exercises v0.0.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: struct `ReportCard` is never constructed [INFO] [stdout] --> solutions/quizzes/quiz3.rs:13:8 [INFO] [stdout] | [INFO] [stdout] 13 | struct ReportCard { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `print` is never used [INFO] [stdout] --> solutions/quizzes/quiz3.rs:24:8 [INFO] [stdout] | [INFO] [stdout] 22 | impl ReportCard { [INFO] [stdout] | ------------------------------ method in this implementation [INFO] [stdout] 23 | // ^^^^^^^ require that `T` implements `Display`. [INFO] [stdout] 24 | fn print(&self) -> String { [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `fill_vec` is never used [INFO] [stdout] --> solutions/06_move_semantics/move_semantics3.rs:1:4 [INFO] [stdout] | [INFO] [stdout] 1 | fn fill_vec(mut vec: Vec) -> Vec { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `bigger` is never used [INFO] [stdout] --> solutions/03_if/if1.rs:1:4 [INFO] [stdout] | [INFO] [stdout] 1 | fn bigger(a: i32, b: i32) -> i32 { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: enum `Fruit` is never used [INFO] [stdout] --> solutions/11_hashmaps/hashmaps2.rs:13:6 [INFO] [stdout] | [INFO] [stdout] 13 | enum Fruit { [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `fruit_basket` is never used [INFO] [stdout] --> solutions/11_hashmaps/hashmaps2.rs:21:4 [INFO] [stdout] | [INFO] [stdout] 21 | fn fruit_basket(basket: &mut HashMap) { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `animal_habitat` is never used [INFO] [stdout] --> solutions/03_if/if3.rs:1:4 [INFO] [stdout] | [INFO] [stdout] 1 | fn animal_habitat(animal: &str) -> &str { [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: enum `CreationError` is never used [INFO] [stdout] --> exercises/13_error_handling/errors6.rs:10:6 [INFO] [stdout] | [INFO] [stdout] 10 | enum CreationError { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: enum `ParsePosNonzeroError` is never used [INFO] [stdout] --> exercises/13_error_handling/errors6.rs:17:6 [INFO] [stdout] | [INFO] [stdout] 17 | enum ParsePosNonzeroError { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated functions `from_creation` and `from_parseint` are never used [INFO] [stdout] --> exercises/13_error_handling/errors6.rs:23:8 [INFO] [stdout] | [INFO] [stdout] 22 | impl ParsePosNonzeroError { [INFO] [stdout] | ------------------------- associated functions in this implementation [INFO] [stdout] 23 | fn from_creation(err: CreationError) -> Self { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 29 | fn from_parseint(err: ParseIntError) -> Self { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `PositiveNonzeroInteger` is never constructed [INFO] [stdout] --> exercises/13_error_handling/errors6.rs:35:8 [INFO] [stdout] | [INFO] [stdout] 35 | struct PositiveNonzeroInteger(u64); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated functions `new` and `parse` are never used [INFO] [stdout] --> exercises/13_error_handling/errors6.rs:38:8 [INFO] [stdout] | [INFO] [stdout] 37 | impl PositiveNonzeroInteger { [INFO] [stdout] | --------------------------- associated functions in this implementation [INFO] [stdout] 38 | fn new(value: i64) -> Result { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 46 | fn parse(s: &str) -> Result { [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `longest` is never used [INFO] [stdout] --> solutions/16_lifetimes/lifetimes1.rs:6:4 [INFO] [stdout] | [INFO] [stdout] 6 | fn longest<'a>(x: &'a str, y: &'a str) -> &'a str { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `name` and `age` are never read [INFO] [stdout] --> exercises/23_conversions/from_into.rs:8:5 [INFO] [stdout] | [INFO] [stdout] 7 | struct Person { [INFO] [stdout] | ------ fields in this struct [INFO] [stdout] 8 | name: String, [INFO] [stdout] | ^^^^ [INFO] [stdout] 9 | age: u8, [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Person` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `generate_nametag_text` is never used [INFO] [stdout] --> exercises/13_error_handling/errors1.rs:7:4 [INFO] [stdout] | [INFO] [stdout] 7 | fn generate_nametag_text(name: String) -> Result { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `power_of_2` is never used [INFO] [stdout] --> solutions/17_tests/tests2.rs:3:4 [INFO] [stdout] | [INFO] [stdout] 3 | fn power_of_2(n: u8) -> u64 { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `total_cost` is never used [INFO] [stdout] --> exercises/13_error_handling/errors2.rs:19:4 [INFO] [stdout] | [INFO] [stdout] 19 | fn total_cost(item_quantity: &str) -> Result { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Wrapper` is never constructed [INFO] [stdout] --> solutions/14_generics/generics2.rs:1:8 [INFO] [stdout] | [INFO] [stdout] 1 | struct Wrapper { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function `new` is never used [INFO] [stdout] --> solutions/14_generics/generics2.rs:6:8 [INFO] [stdout] | [INFO] [stdout] 5 | impl Wrapper { [INFO] [stdout] | ------------------ associated function in this implementation [INFO] [stdout] 6 | fn new(value: T) -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Team` is never constructed [INFO] [stdout] --> solutions/11_hashmaps/hashmaps3.rs:13:8 [INFO] [stdout] | [INFO] [stdout] 13 | struct Team { [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Team` has a derived impl for the trait `Default`, but this is intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `build_scores_table` is never used [INFO] [stdout] --> solutions/11_hashmaps/hashmaps3.rs:18:4 [INFO] [stdout] | [INFO] [stdout] 18 | fn build_scores_table(results: &str) -> HashMap<&str, Team> { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `array_and_vec` is never used [INFO] [stdout] --> solutions/05_vecs/vecs1.rs:1:4 [INFO] [stdout] | [INFO] [stdout] 1 | fn array_and_vec() -> ([i32; 4], Vec) { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `details` is never used [INFO] [stdout] --> exercises/19_smart_pointers/rc1.rs:25:8 [INFO] [stdout] | [INFO] [stdout] 24 | impl Planet { [INFO] [stdout] | ----------- method in this implementation [INFO] [stdout] 25 | fn details(&self) { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Wrapper` is never constructed [INFO] [stdout] --> exercises/14_generics/generics2.rs:3:8 [INFO] [stdout] | [INFO] [stdout] 3 | struct Wrapper { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function `new` is never used [INFO] [stdout] --> exercises/14_generics/generics2.rs:9:8 [INFO] [stdout] | [INFO] [stdout] 8 | impl Wrapper { [INFO] [stdout] | ------------------ associated function in this implementation [INFO] [stdout] 9 | fn new(value: T) -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `abs_all` is never used [INFO] [stdout] --> solutions/19_smart_pointers/cow1.rs:8:4 [INFO] [stdout] | [INFO] [stdout] 8 | fn abs_all(input: &mut Cow<[i32]>) { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: couldn't create a temp dir: No space left on device (os error 28) at path "/opt/rustwide/target/debug/deps/rmetaK3rPw7" [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not parse/generate dep info at: /opt/rustwide/target/debug/deps/enums2_sol-b0061e60e1294c66.d [INFO] [stderr] [INFO] [stderr] Caused by: [INFO] [stderr] failed to write `/opt/rustwide/target/debug/.fingerprint/exercises-b0061e60e1294c66/dep-bin-enums2_sol` [INFO] [stderr] [INFO] [stderr] Caused by: [INFO] [stderr] No space left on device (os error 28) [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stderr] error: could not parse/generate dep info at: /opt/rustwide/target/debug/deps/errors4_sol-acf551a2eccaf411.d [INFO] [stderr] [INFO] [stderr] Caused by: [INFO] [stderr] failed to write `/opt/rustwide/target/debug/.fingerprint/exercises-acf551a2eccaf411/dep-test-bin-errors4_sol` [INFO] [stderr] [INFO] [stderr] Caused by: [INFO] [stderr] No space left on device (os error 28) [INFO] [stderr] error: could not compile `exercises` (bin "functions1_sol") due to 1 previous error [INFO] [stdout] error: couldn't create a temp dir: No space left on device (os error 28) at path "/opt/rustwide/target/debug/deps/rmetarlOETL" [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: couldn't create a temp dir: No space left on device (os error 28) at path "/opt/rustwide/target/debug/deps/rmetafxVdco" [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `exercises` (bin "options1" test) due to 1 previous error [INFO] [stdout] error: couldn't create a temp dir: No space left on device (os error 28) at path "/opt/rustwide/target/debug/deps/rmetarJ8Swm" [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: couldn't create a temp dir: No space left on device (os error 28) at path "/opt/rustwide/target/debug/deps/rmetaXvoRsB" [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: couldn't create a temp dir: No space left on device (os error 28) at path "/opt/rustwide/target/debug/deps/rmeta7J4R2R" [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `abs_all` is never used [INFO] [stdout] --> exercises/19_smart_pointers/cow1.rs:8:4 [INFO] [stdout] | [INFO] [stdout] 8 | fn abs_all(input: &mut Cow<[i32]>) { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `exercises` (bin "iterators3_sol" test) due to 1 previous error [INFO] [stderr] error: could not compile `exercises` (bin "primitive_types4_sol") due to 1 previous error [INFO] [stdout] error: couldn't create a temp dir: No space left on device (os error 28) at path "/opt/rustwide/target/debug/deps/rmetak1kLVD" [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: couldn't create a temp dir: No space left on device (os error 28) at path "/opt/rustwide/target/debug/deps/rmetatzAVMf" [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `exercises` (bin "strings3_sol" test) due to 1 previous error [INFO] [stderr] error: could not compile `exercises` (bin "cow1") due to 1 previous error; 1 warning emitted [INFO] [stderr] error: could not compile `exercises` (bin "box1") due to 1 previous error [INFO] [stderr] error: could not compile `exercises` (bin "from_into_sol" test) due to 1 previous error [INFO] running `Command { std: "docker" "inspect" "69656e08a6cd642b6d31056f3f0f3bfe9a918793a9ac2329b8731d449610ef6e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "69656e08a6cd642b6d31056f3f0f3bfe9a918793a9ac2329b8731d449610ef6e", kill_on_drop: false }` [INFO] [stdout] 69656e08a6cd642b6d31056f3f0f3bfe9a918793a9ac2329b8731d449610ef6e