[INFO] cloning repository https://github.com/chasangchual/rust-data-structures-and-algorithms [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/chasangchual/rust-data-structures-and-algorithms" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fchasangchual%2Frust-data-structures-and-algorithms", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fchasangchual%2Frust-data-structures-and-algorithms'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 63101a29e41a583668f3cc8a3ff430d1a0d3a1b7 [INFO] checking chasangchual/rust-data-structures-and-algorithms against try#723ab942d877517caf445dafde0416803ef56501 for pr-143857 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fchasangchual%2Frust-data-structures-and-algorithms" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'... [INFO] [stderr] done. [INFO] started tweaking git repo https://github.com/chasangchual/rust-data-structures-and-algorithms [INFO] finished tweaking git repo https://github.com/chasangchual/rust-data-structures-and-algorithms [INFO] tweaked toml for git repo https://github.com/chasangchual/rust-data-structures-and-algorithms written to /workspace/builds/worker-0-tc2/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/chasangchual/rust-data-structures-and-algorithms on toolchain 723ab942d877517caf445dafde0416803ef56501 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+723ab942d877517caf445dafde0416803ef56501" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate git repo https://github.com/chasangchual/rust-data-structures-and-algorithms 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" "+723ab942d877517caf445dafde0416803ef56501" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+723ab942d877517caf445dafde0416803ef56501" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 54f1fd243795d5a68fe9478230a054a9e3e8c63ffa1156cdac5e1a24d38b0640 [INFO] running `Command { std: "docker" "start" "-a" "54f1fd243795d5a68fe9478230a054a9e3e8c63ffa1156cdac5e1a24d38b0640", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "54f1fd243795d5a68fe9478230a054a9e3e8c63ffa1156cdac5e1a24d38b0640", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "54f1fd243795d5a68fe9478230a054a9e3e8c63ffa1156cdac5e1a24d38b0640", kill_on_drop: false }` [INFO] [stdout] 54f1fd243795d5a68fe9478230a054a9e3e8c63ffa1156cdac5e1a24d38b0640 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+723ab942d877517caf445dafde0416803ef56501" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 0835183dd0fd4f0cf661e0f31f55b8556fa6d6f02a793afadce95cb888e76770 [INFO] running `Command { std: "docker" "start" "-a" "0835183dd0fd4f0cf661e0f31f55b8556fa6d6f02a793afadce95cb888e76770", kill_on_drop: false }` [INFO] [stderr] Checking rust-data-structures-and-algorithms v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `std::marker::PhantomData` [INFO] [stdout] --> src/data_structure/linked_list.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use std::marker::PhantomData; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::ops::Add` [INFO] [stdout] --> src/getting_started/credit_card_number_validator.rs:3:5 [INFO] [stdout] | [INFO] [stdout] 3 | use std::ops::Add; [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `heap_stack::structure::*` [INFO] [stdout] --> src/main.rs:5:5 [INFO] [stdout] | [INFO] [stdout] 5 | use heap_stack::structure::*; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::marker::PhantomData` [INFO] [stdout] --> src/data_structure/linked_list.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use std::marker::PhantomData; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `lh` [INFO] [stdout] --> src/getting_started/multiplication_table.rs:2:9 [INFO] [stdout] | [INFO] [stdout] 2 | let lh:i8 = 1; [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_lh` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `rh` [INFO] [stdout] --> src/getting_started/multiplication_table.rs:3:9 [INFO] [stdout] | [INFO] [stdout] 3 | let rh:i8 = 1; [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_rh` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `is_valid` is never read [INFO] [stdout] --> src/getting_started/credit_card_number_validator.rs:34:13 [INFO] [stdout] | [INFO] [stdout] 34 | let mut is_valid = false; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] = note: `#[warn(unused_assignments)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/getting_started/credit_card_number_validator.rs:32:9 [INFO] [stdout] | [INFO] [stdout] 32 | let mut numbers: Vec<_> = credit_card_number.chars().collect(); [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/getting_started/credit_card_number_validator.rs:121:17 [INFO] [stdout] | [INFO] [stdout] 121 | let mut is_valid = luhn_validation(&mut trimmed); [INFO] [stdout] | ----^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/getting_started/credit_card_number_validator.rs:130:17 [INFO] [stdout] | [INFO] [stdout] 130 | let mut is_valid = luhn_validation(&mut trimmed); [INFO] [stdout] | ----^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/getting_started/credit_card_number_validator.rs:139:17 [INFO] [stdout] | [INFO] [stdout] 139 | let mut is_valid = luhn_validation(&mut trimmed); [INFO] [stdout] | ----^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/getting_started/credit_card_number_validator.rs:148:17 [INFO] [stdout] | [INFO] [stdout] 148 | let mut is_valid = luhn_validation(&mut trimmed); [INFO] [stdout] | ----^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/getting_started/credit_card_number_validator.rs:158:17 [INFO] [stdout] | [INFO] [stdout] 158 | let mut is_valid = luhn_validation(&mut trimmed); [INFO] [stdout] | ----^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/getting_started/credit_card_number_validator.rs:167:17 [INFO] [stdout] | [INFO] [stdout] 167 | let mut is_valid = luhn_validation(&mut trimmed); [INFO] [stdout] | ----^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `MyStructure` is never constructed [INFO] [stdout] --> src/heap_stack/structure.rs:3:8 [INFO] [stdout] | [INFO] [stdout] 3 | struct MyStructure { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `size_of_structure` is never used [INFO] [stdout] --> src/heap_stack/structure.rs:9:8 [INFO] [stdout] | [INFO] [stdout] 9 | pub fn size_of_structure() { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Node` is never constructed [INFO] [stdout] --> src/data_structure/linked_list.rs:5:8 [INFO] [stdout] | [INFO] [stdout] 5 | struct Node { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function `new` is never used [INFO] [stdout] --> src/data_structure/linked_list.rs:15:8 [INFO] [stdout] | [INFO] [stdout] 14 | impl Node { [INFO] [stdout] | --------------- associated function in this implementation [INFO] [stdout] 15 | fn new(t: T) -> Node { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `say_hello` is never used [INFO] [stdout] --> src/getting_started/hello_world.rs:1:8 [INFO] [stdout] | [INFO] [stdout] 1 | pub fn say_hello(hello: String) { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `rust-data-structures-and-algorithms` (bin "rust-data-structures-and-algorithms" test); 18 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/723ab942d877517caf445dafde0416803ef56501/bin/rustc --crate-name rust_data_structures_and_algorithms --edition=2021 src/main.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=2d4c1713ff182585 -C extra-filename=-4db133c42fbebece --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --cap-lints=forbid` (exit status: 1) [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stdout] warning: unused import: `std::ops::Add` [INFO] [stdout] --> src/getting_started/credit_card_number_validator.rs:3:5 [INFO] [stdout] | [INFO] [stdout] 3 | use std::ops::Add; [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `heap_stack::structure::*` [INFO] [stdout] --> src/main.rs:5:5 [INFO] [stdout] | [INFO] [stdout] 5 | use heap_stack::structure::*; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `lh` [INFO] [stdout] --> src/getting_started/multiplication_table.rs:2:9 [INFO] [stdout] | [INFO] [stdout] 2 | let lh:i8 = 1; [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_lh` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `rh` [INFO] [stdout] --> src/getting_started/multiplication_table.rs:3:9 [INFO] [stdout] | [INFO] [stdout] 3 | let rh:i8 = 1; [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_rh` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `is_valid` is never read [INFO] [stdout] --> src/getting_started/credit_card_number_validator.rs:34:13 [INFO] [stdout] | [INFO] [stdout] 34 | let mut is_valid = false; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] = note: `#[warn(unused_assignments)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/getting_started/credit_card_number_validator.rs:32:9 [INFO] [stdout] | [INFO] [stdout] 32 | let mut numbers: Vec<_> = credit_card_number.chars().collect(); [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: struct `MyStructure` is never constructed [INFO] [stdout] --> src/heap_stack/structure.rs:3:8 [INFO] [stdout] | [INFO] [stdout] 3 | struct MyStructure { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `size_of_structure` is never used [INFO] [stdout] --> src/heap_stack/structure.rs:9:8 [INFO] [stdout] | [INFO] [stdout] 9 | pub fn size_of_structure() { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Node` is never constructed [INFO] [stdout] --> src/data_structure/linked_list.rs:5:8 [INFO] [stdout] | [INFO] [stdout] 5 | struct Node { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function `new` is never used [INFO] [stdout] --> src/data_structure/linked_list.rs:15:8 [INFO] [stdout] | [INFO] [stdout] 14 | impl Node { [INFO] [stdout] | --------------- associated function in this implementation [INFO] [stdout] 15 | fn new(t: T) -> Node { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `say_hello` is never used [INFO] [stdout] --> src/getting_started/hello_world.rs:1:8 [INFO] [stdout] | [INFO] [stdout] 1 | pub fn say_hello(hello: String) { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `print_multiplication_table` is never used [INFO] [stdout] --> src/getting_started/multiplication_table.rs:1:8 [INFO] [stdout] | [INFO] [stdout] 1 | pub fn print_multiplication_table() { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/getting_started/credit_card_number_validator.rs:10:5 [INFO] [stdout] | [INFO] [stdout] 10 | stdout.write_all(b"Enter credit card number to validate: "); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 10 | let _ = stdout.write_all(b"Enter credit card number to validate: "); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `rust-data-structures-and-algorithms` (bin "rust-data-structures-and-algorithms") due to 1 previous error; 16 warnings emitted [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/getting_started/credit_card_number_validator.rs:11:5 [INFO] [stdout] | [INFO] [stdout] 11 | stdout.flush(); [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 11 | let _ = stdout.flush(); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/getting_started/credit_card_number_validator.rs:13:5 [INFO] [stdout] | [INFO] [stdout] 13 | stdin.read_line(&mut input); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 13 | let _ = stdin.read_line(&mut input); [INFO] [stdout] | +++++++ [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/rmetabRTj0I" [INFO] [stdout] [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "0835183dd0fd4f0cf661e0f31f55b8556fa6d6f02a793afadce95cb888e76770", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "0835183dd0fd4f0cf661e0f31f55b8556fa6d6f02a793afadce95cb888e76770", kill_on_drop: false }` [INFO] [stdout] 0835183dd0fd4f0cf661e0f31f55b8556fa6d6f02a793afadce95cb888e76770