[INFO] cloning repository https://github.com/duysmile/learn-rust [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/duysmile/learn-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fduysmile%2Flearn-rust", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fduysmile%2Flearn-rust'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] b9bcfee8e3ff1db749c854a1a7a6731ea2b45eb1 [INFO] checking duysmile/learn-rust against try#5fee451ebd94296ea05214e819c311e164b30af6 for pr-139042 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fduysmile%2Flearn-rust" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/duysmile/learn-rust on toolchain 5fee451ebd94296ea05214e819c311e164b30af6 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+5fee451ebd94296ea05214e819c311e164b30af6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/duysmile/learn-rust [INFO] finished tweaking git repo https://github.com/duysmile/learn-rust [INFO] tweaked toml for git repo https://github.com/duysmile/learn-rust written to /workspace/builds/worker-2-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/duysmile/learn-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" "+5fee451ebd94296ea05214e819c311e164b30af6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:4b26683ee3c49f365255c425c23003cbf4366de097804722c29c5bbbee3624d2" "/opt/rustwide/cargo-home/bin/cargo" "+5fee451ebd94296ea05214e819c311e164b30af6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 700bd28b7f09dd055d40b3e6265114ad9f4ce5732a9452d7115ed3aa31ed2e7b [INFO] running `Command { std: "docker" "start" "-a" "700bd28b7f09dd055d40b3e6265114ad9f4ce5732a9452d7115ed3aa31ed2e7b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "700bd28b7f09dd055d40b3e6265114ad9f4ce5732a9452d7115ed3aa31ed2e7b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "700bd28b7f09dd055d40b3e6265114ad9f4ce5732a9452d7115ed3aa31ed2e7b", kill_on_drop: false }` [INFO] [stdout] 700bd28b7f09dd055d40b3e6265114ad9f4ce5732a9452d7115ed3aa31ed2e7b [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:4b26683ee3c49f365255c425c23003cbf4366de097804722c29c5bbbee3624d2" "/opt/rustwide/cargo-home/bin/cargo" "+5fee451ebd94296ea05214e819c311e164b30af6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 168ade320e6883317b3417cf85faf9a25507a84bd9fb6fb3cd007df446efaf90 [INFO] running `Command { std: "docker" "start" "-a" "168ade320e6883317b3417cf85faf9a25507a84bd9fb6fb3cd007df446efaf90", kill_on_drop: false }` [INFO] [stderr] Checking rust_exercises v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: trait `AppendBar` is never used [INFO] [stdout] --> src/lession4/ex3.rs:7:7 [INFO] [stdout] | [INFO] [stdout] 7 | trait AppendBar { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `diff2` [INFO] [stdout] --> src/lession2/ex1.rs:38:9 [INFO] [stdout] | [INFO] [stdout] 38 | let diff2 = vec_diff(&diff, &v1); [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_diff2` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `objetive` [INFO] [stdout] --> src/lession2/ex2.rs:10:9 [INFO] [stdout] | [INFO] [stdout] 10 | let objetive = 3126.59; [INFO] [stdout] | ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_objetive` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `values_index_max` [INFO] [stdout] --> src/lession2/ex2.rs:20:9 [INFO] [stdout] | [INFO] [stdout] 20 | let values_index_max = values_number - 1; [INFO] [stdout] | ^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_values_index_max` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `saltar` [INFO] [stdout] --> src/lession2/ex2.rs:28:17 [INFO] [stdout] | [INFO] [stdout] 28 | let mut saltar: i32 = 0; [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_saltar` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `p` [INFO] [stdout] --> src/lession3/ex1.rs:15:9 [INFO] [stdout] | [INFO] [stdout] 15 | let p = Point{x: 5, y : "hello".to_string()}; [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_p` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/lession2/ex2.rs:22:9 [INFO] [stdout] | [INFO] [stdout] 22 | let mut additions: &Vec = &vec![0]; [INFO] [stdout] | ----^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/lession2/ex2.rs:28:13 [INFO] [stdout] | [INFO] [stdout] 28 | let mut saltar: i32 = 0; [INFO] [stdout] | ----^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `x` and `y` are never read [INFO] [stdout] --> src/lession3/ex1.rs:9:5 [INFO] [stdout] | [INFO] [stdout] 8 | struct Point { [INFO] [stdout] | ----- fields in this struct [INFO] [stdout] 9 | x: T, [INFO] [stdout] | ^ [INFO] [stdout] 10 | y: String, [INFO] [stdout] | ^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait `Price` is never used [INFO] [stdout] --> src/lession4/ex4.rs:13:7 [INFO] [stdout] | [INFO] [stdout] 13 | trait Price { [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Store` is never constructed [INFO] [stdout] --> src/lession4/ex4.rs:39:8 [INFO] [stdout] | [INFO] [stdout] 39 | struct Store { [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Item` is never constructed [INFO] [stdout] --> src/lession4/ex4.rs:45:8 [INFO] [stdout] | [INFO] [stdout] 45 | struct Item { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated items `new` and `add_item` are never used [INFO] [stdout] --> src/lession4/ex4.rs:51:8 [INFO] [stdout] | [INFO] [stdout] 50 | impl Store { [INFO] [stdout] | ---------- associated items in this implementation [INFO] [stdout] 51 | fn new(name: String) -> Store { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 58 | fn add_item(&mut self, item: Item) { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `build_store` is never used [INFO] [stdout] --> src/lession4/ex4.rs:74:4 [INFO] [stdout] | [INFO] [stdout] 74 | fn build_store() -> Store { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Factory` is never constructed [INFO] [stdout] --> src/lession4/ex4.rs:87:8 [INFO] [stdout] | [INFO] [stdout] 87 | struct Factory { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `build_factory` is never used [INFO] [stdout] --> src/lession4/ex4.rs:102:4 [INFO] [stdout] | [INFO] [stdout] 102 | fn build_factory() -> Factory { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `both` [INFO] [stdout] --> src/lession3/ex4.rs:21:9 [INFO] [stdout] | [INFO] [stdout] 21 | let both = d.get_both(); [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_both` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `x` [INFO] [stdout] --> src/lession3/ex4.rs:22:9 [INFO] [stdout] | [INFO] [stdout] 22 | let x = d.get_val1(); [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_x` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `y` [INFO] [stdout] --> src/lession3/ex4.rs:23:9 [INFO] [stdout] | [INFO] [stdout] 23 | let y = d.get_val2(); [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_y` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `name` is never read [INFO] [stdout] --> src/lession4/ex4.rs:40:5 [INFO] [stdout] | [INFO] [stdout] 39 | struct Store { [INFO] [stdout] | ----- field in this struct [INFO] [stdout] 40 | name: String, [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `objetive` [INFO] [stdout] --> src/lession2/ex2.rs:10:9 [INFO] [stdout] | [INFO] [stdout] 10 | let objetive = 3126.59; [INFO] [stdout] | ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_objetive` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `values_index_max` [INFO] [stdout] --> src/lession2/ex2.rs:20:9 [INFO] [stdout] | [INFO] [stdout] 20 | let values_index_max = values_number - 1; [INFO] [stdout] | ^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_values_index_max` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `saltar` [INFO] [stdout] --> src/lession2/ex2.rs:28:17 [INFO] [stdout] | [INFO] [stdout] 28 | let mut saltar: i32 = 0; [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_saltar` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/lession2/ex2.rs:22:9 [INFO] [stdout] | [INFO] [stdout] 22 | let mut additions: &Vec = &vec![0]; [INFO] [stdout] | ----^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/lession2/ex2.rs:28:13 [INFO] [stdout] | [INFO] [stdout] 28 | let mut saltar: i32 = 0; [INFO] [stdout] | ----^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `diff2` [INFO] [stdout] --> src/lession2/ex1.rs:38:9 [INFO] [stdout] | [INFO] [stdout] 38 | let diff2 = vec_diff(&diff, &v1); [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_diff2` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `p` [INFO] [stdout] --> src/lession3/ex1.rs:15:9 [INFO] [stdout] | [INFO] [stdout] 15 | let p = Point{x: 5, y : "hello".to_string()}; [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_p` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `x` and `y` are never read [INFO] [stdout] --> src/lession3/ex1.rs:9:5 [INFO] [stdout] | [INFO] [stdout] 8 | struct Point { [INFO] [stdout] | ----- fields in this struct [INFO] [stdout] 9 | x: T, [INFO] [stdout] | ^ [INFO] [stdout] 10 | y: String, [INFO] [stdout] | ^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `both` [INFO] [stdout] --> src/lession3/ex4.rs:21:9 [INFO] [stdout] | [INFO] [stdout] 21 | let both = d.get_both(); [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_both` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not parse/generate dep info at: /opt/rustwide/target/debug/deps/lession2_ex1-40ec35f5234f5e9e.d [INFO] [stderr] [INFO] [stderr] Caused by: [INFO] [stderr] failed to write `/opt/rustwide/target/debug/.fingerprint/rust_exercises-40ec35f5234f5e9e/dep-test-bin-lession2_ex1` [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/lession4_ex2-638672e1757f6fde.d [INFO] [stderr] [INFO] [stderr] Caused by: [INFO] [stderr] failed to write `/opt/rustwide/target/debug/.fingerprint/rust_exercises-638672e1757f6fde/dep-test-bin-lession4_ex2` [INFO] [stderr] [INFO] [stderr] Caused by: [INFO] [stderr] No space left on device (os error 28) [INFO] [stderr] error: could not parse/generate dep info at: /opt/rustwide/target/debug/deps/lession2_ex2-5652e7bba1f0961a.d [INFO] [stderr] [INFO] [stderr] Caused by: [INFO] [stderr] failed to write `/opt/rustwide/target/debug/.fingerprint/rust_exercises-5652e7bba1f0961a/dep-bin-lession2_ex2` [INFO] [stderr] [INFO] [stderr] Caused by: [INFO] [stderr] No space left on device (os error 28) [INFO] [stderr] error: could not compile `rust_exercises` (bin "lession3_ex1" test); 2 warnings emitted [INFO] [stderr] [INFO] [stderr] Caused by: [INFO] [stderr] No space left on device (os error 28) [INFO] [stderr] [INFO] [stderr] Caused by: [INFO] [stderr] failed to parse process output: `/opt/rustwide/rustup-home/toolchains/5fee451ebd94296ea05214e819c311e164b30af6/bin/rustc --crate-name lession3_ex1 --edition=2021 src/lession3/ex1.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --emit=dep-info,metadata -C embed-bitcode=no -C debuginfo=2 --test --check-cfg 'cfg(docsrs,test)' --check-cfg 'cfg(feature, values())' -C metadata=75fbd8a4d1355617 -C extra-filename=-db6a3ca3b90cd97e --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --cap-lints=forbid` (exit status: 1) [INFO] [stderr] error: could not compile `rust_exercises` (bin "lession3_ex4"); 1 warning emitted [INFO] [stderr] [INFO] [stderr] Caused by: [INFO] [stderr] No space left on device (os error 28) [INFO] [stderr] [INFO] [stderr] Caused by: [INFO] [stderr] failed to parse process output: `/opt/rustwide/rustup-home/toolchains/5fee451ebd94296ea05214e819c311e164b30af6/bin/rustc --crate-name lession3_ex4 --edition=2021 src/lession3/ex4.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --crate-type bin --emit=dep-info,metadata -C embed-bitcode=no -C debuginfo=2 --check-cfg 'cfg(docsrs,test)' --check-cfg 'cfg(feature, values())' -C metadata=2670122e4e741529 -C extra-filename=-7e39125b1a7c87ea --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --cap-lints=forbid` (exit status: 1) [INFO] [stdout] error: couldn't create a temp dir: No space left on device (os error 28) at path "/opt/rustwide/target/debug/deps/rmetaWSZh29" [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/rmetaZz16m5" [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `rust_exercises` (bin "sub_arr" test) due to 1 previous error [INFO] [stderr] error: could not compile `rust_exercises` (bin "learn" 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/rmetapd92Tp" [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `rust_exercises` (bin "lession3_ex2") due to 1 previous error [INFO] running `Command { std: "docker" "inspect" "168ade320e6883317b3417cf85faf9a25507a84bd9fb6fb3cd007df446efaf90", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "168ade320e6883317b3417cf85faf9a25507a84bd9fb6fb3cd007df446efaf90", kill_on_drop: false }` [INFO] [stdout] 168ade320e6883317b3417cf85faf9a25507a84bd9fb6fb3cd007df446efaf90