[INFO] cloning repository https://github.com/itssaptarshi/rust_book [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/itssaptarshi/rust_book" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fitssaptarshi%2Frust_book", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fitssaptarshi%2Frust_book'... [INFO] [stderr] error: copy-fd: write returned: No space left on device [INFO] [stderr] fatal: cannot copy '/usr/share/git-core/templates/info/exclude' to '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fitssaptarshi%2Frust_book/info/exclude': No space left on device [WARN] Retrying crate fetch in 3 seconds (attempt 1) [INFO] cloning repository https://github.com/itssaptarshi/rust_book [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/itssaptarshi/rust_book" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fitssaptarshi%2Frust_book", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fitssaptarshi%2Frust_book'... [INFO] [stderr] error: failed to write new configuration file /workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fitssaptarshi%2Frust_book/config.lock [INFO] [stderr] fatal: could not set 'core.repositoryformatversion' to '0' [WARN] Retrying crate fetch in 3 seconds (attempt 2) [INFO] cloning repository https://github.com/itssaptarshi/rust_book [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/itssaptarshi/rust_book" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fitssaptarshi%2Frust_book", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fitssaptarshi%2Frust_book'... [INFO] [stderr] error: copy-fd: write returned: No space left on device [INFO] [stderr] fatal: cannot copy '/usr/share/git-core/templates/hooks/pre-rebase.sample' to '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fitssaptarshi%2Frust_book/hooks/pre-rebase.sample': No space left on device [WARN] Retrying crate fetch in 3 seconds (attempt 3) [INFO] cloning repository https://github.com/itssaptarshi/rust_book [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/itssaptarshi/rust_book" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fitssaptarshi%2Frust_book", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fitssaptarshi%2Frust_book'... [INFO] [stderr] error: copy-fd: write returned: No space left on device [INFO] [stderr] fatal: cannot copy '/usr/share/git-core/templates/hooks/pre-applypatch.sample' to '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fitssaptarshi%2Frust_book/hooks/pre-applypatch.sample': No space left on device [WARN] Retrying crate fetch in 3 seconds (attempt 4) [INFO] cloning repository https://github.com/itssaptarshi/rust_book [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/itssaptarshi/rust_book" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fitssaptarshi%2Frust_book", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fitssaptarshi%2Frust_book'... [INFO] [stderr] /workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fitssaptarshi%2Frust_book: No space left on device [WARN] Retrying crate fetch in 3 seconds (attempt 5) [INFO] cloning repository https://github.com/itssaptarshi/rust_book [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/itssaptarshi/rust_book" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fitssaptarshi%2Frust_book", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fitssaptarshi%2Frust_book'... [INFO] [stderr] /workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fitssaptarshi%2Frust_book: No space left on device [WARN] Retrying crate fetch in 3 seconds (attempt 6) [INFO] cloning repository https://github.com/itssaptarshi/rust_book [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/itssaptarshi/rust_book" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fitssaptarshi%2Frust_book", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fitssaptarshi%2Frust_book'... [INFO] [stderr] /workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fitssaptarshi%2Frust_book: No space left on device [WARN] Retrying crate fetch in 3 seconds (attempt 7) [INFO] cloning repository https://github.com/itssaptarshi/rust_book [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/itssaptarshi/rust_book" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fitssaptarshi%2Frust_book", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fitssaptarshi%2Frust_book'... [INFO] [stderr] /workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fitssaptarshi%2Frust_book: No space left on device [WARN] Retrying crate fetch in 3 seconds (attempt 8) [INFO] cloning repository https://github.com/itssaptarshi/rust_book [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/itssaptarshi/rust_book" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fitssaptarshi%2Frust_book", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fitssaptarshi%2Frust_book'... [INFO] [stderr] /workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fitssaptarshi%2Frust_book: No space left on device [WARN] Retrying crate fetch in 3 seconds (attempt 9) [INFO] cloning repository https://github.com/itssaptarshi/rust_book [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/itssaptarshi/rust_book" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fitssaptarshi%2Frust_book", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fitssaptarshi%2Frust_book'... [INFO] [stderr] /workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fitssaptarshi%2Frust_book: No space left on device [WARN] Retrying crate fetch in 3 seconds (attempt 10) [INFO] cloning repository https://github.com/itssaptarshi/rust_book [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/itssaptarshi/rust_book" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fitssaptarshi%2Frust_book", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fitssaptarshi%2Frust_book'... [INFO] [stderr] /workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fitssaptarshi%2Frust_book: No space left on device [WARN] Retrying crate fetch in 3 seconds (attempt 11) [INFO] cloning repository https://github.com/itssaptarshi/rust_book [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/itssaptarshi/rust_book" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fitssaptarshi%2Frust_book", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fitssaptarshi%2Frust_book'... [INFO] [stderr] /workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fitssaptarshi%2Frust_book: No space left on device [WARN] Retrying crate fetch in 3 seconds (attempt 12) [INFO] cloning repository https://github.com/itssaptarshi/rust_book [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/itssaptarshi/rust_book" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fitssaptarshi%2Frust_book", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fitssaptarshi%2Frust_book'... [INFO] [stderr] /workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fitssaptarshi%2Frust_book: No space left on device [WARN] Retrying crate fetch in 3 seconds (attempt 13) [INFO] cloning repository https://github.com/itssaptarshi/rust_book [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/itssaptarshi/rust_book" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fitssaptarshi%2Frust_book", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fitssaptarshi%2Frust_book'... [INFO] [stderr] /workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fitssaptarshi%2Frust_book: No space left on device [WARN] Retrying crate fetch in 3 seconds (attempt 14) [INFO] cloning repository https://github.com/itssaptarshi/rust_book [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/itssaptarshi/rust_book" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fitssaptarshi%2Frust_book", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fitssaptarshi%2Frust_book'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] f87db7b5877336b0b1cef66d52c1f5ad72d296f8 [INFO] checking itssaptarshi/rust_book against master#a9e7b30487235621751cc628f170c0f15fb215c4 for pr-136539 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fitssaptarshi%2Frust_book" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/itssaptarshi/rust_book on toolchain a9e7b30487235621751cc628f170c0f15fb215c4 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a9e7b30487235621751cc628f170c0f15fb215c4" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/itssaptarshi/rust_book [INFO] finished tweaking git repo https://github.com/itssaptarshi/rust_book [INFO] tweaked toml for git repo https://github.com/itssaptarshi/rust_book written to /workspace/builds/worker-2-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/itssaptarshi/rust_book 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" "+a9e7b30487235621751cc628f170c0f15fb215c4" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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" "+a9e7b30487235621751cc628f170c0f15fb215c4" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] acb43a7d7133d76b09d2f320a0aa0aba9b51b3ac452c43bb15fbd0638fcc7e6f [INFO] running `Command { std: "docker" "start" "-a" "acb43a7d7133d76b09d2f320a0aa0aba9b51b3ac452c43bb15fbd0638fcc7e6f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "acb43a7d7133d76b09d2f320a0aa0aba9b51b3ac452c43bb15fbd0638fcc7e6f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "acb43a7d7133d76b09d2f320a0aa0aba9b51b3ac452c43bb15fbd0638fcc7e6f", kill_on_drop: false }` [INFO] [stdout] acb43a7d7133d76b09d2f320a0aa0aba9b51b3ac452c43bb15fbd0638fcc7e6f [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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" "+a9e7b30487235621751cc628f170c0f15fb215c4" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] cd897bbf074b4bc812d952091f4f72e272431c27a1d4b49fc1644e23150af173 [INFO] running `Command { std: "docker" "start" "-a" "cd897bbf074b4bc812d952091f4f72e272431c27a1d4b49fc1644e23150af173", kill_on_drop: false }` [INFO] [stderr] Compiling rustix v0.38.8 [INFO] [stderr] Checking bitflags v2.4.0 [INFO] [stderr] Compiling libc v0.2.147 [INFO] [stderr] Checking linux-raw-sys v0.4.5 [INFO] [stderr] Checking rand_core v0.4.2 [INFO] [stderr] Checking lazy_static v1.4.0 [INFO] [stderr] Checking rand_core v0.3.1 [INFO] [stderr] Checking rand v0.5.6 [INFO] [stderr] Checking is-terminal v0.4.9 [INFO] [stderr] Checking colored v2.0.4 [INFO] [stderr] Checking rust_book v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] error[E0583]: file not found for module `ownership` [INFO] [stdout] --> src/main.rs:3:1 [INFO] [stdout] | [INFO] [stdout] 3 | mod ownership; [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: to create the module `ownership`, create file "src/ownership.rs" or "src/ownership/mod.rs" [INFO] [stdout] = note: if there is a `mod ownership` elsewhere in the crate already, import it with `use crate::...` instead [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0583]: file not found for module `ownership` [INFO] [stdout] --> src/main.rs:3:1 [INFO] [stdout] | [INFO] [stdout] 3 | mod ownership; [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: to create the module `ownership`, create file "src/ownership.rs" or "src/ownership/mod.rs" [INFO] [stdout] = note: if there is a `mod ownership` elsewhere in the crate already, import it with `use crate::...` instead [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `a` [INFO] [stdout] --> src/common_programming_concepts.rs:18:9 [INFO] [stdout] | [INFO] [stdout] 18 | let a = 5; [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_a` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `b` [INFO] [stdout] --> src/common_programming_concepts.rs:19:9 [INFO] [stdout] | [INFO] [stdout] 19 | let b = 2.5; [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_b` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `c` [INFO] [stdout] --> src/common_programming_concepts.rs:20:9 [INFO] [stdout] | [INFO] [stdout] 20 | let c = 0xff; [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_c` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `sum` [INFO] [stdout] --> src/common_programming_concepts.rs:22:9 [INFO] [stdout] | [INFO] [stdout] 22 | let sum = 5 + 10; [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_sum` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `sub` [INFO] [stdout] --> src/common_programming_concepts.rs:23:9 [INFO] [stdout] | [INFO] [stdout] 23 | let sub = 10 - 5; [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_sub` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `mul` [INFO] [stdout] --> src/common_programming_concepts.rs:24:9 [INFO] [stdout] | [INFO] [stdout] 24 | let mul = 10 * 5; [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_mul` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `div` [INFO] [stdout] --> src/common_programming_concepts.rs:25:9 [INFO] [stdout] | [INFO] [stdout] 25 | let div = 10 / 5; [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_div` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `char` [INFO] [stdout] --> src/common_programming_concepts.rs:27:9 [INFO] [stdout] | [INFO] [stdout] 27 | let char = 'a'; [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_char` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `stringb` [INFO] [stdout] --> src/common_programming_concepts.rs:28:9 [INFO] [stdout] | [INFO] [stdout] 28 | let stringb = "hello"; [INFO] [stdout] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_stringb` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `age` [INFO] [stdout] --> src/common_programming_concepts.rs:33:9 [INFO] [stdout] | [INFO] [stdout] 33 | let age = tup.1; [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_age` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0583`. [INFO] [stdout] [INFO] [stderr] error: could not compile `rust_book` (bin "rust_book") due to 1 previous error; 10 warnings emitted [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stdout] warning: unused variable: `a` [INFO] [stdout] --> src/common_programming_concepts.rs:18:9 [INFO] [stdout] | [INFO] [stdout] 18 | let a = 5; [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_a` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `b` [INFO] [stdout] --> src/common_programming_concepts.rs:19:9 [INFO] [stdout] | [INFO] [stdout] 19 | let b = 2.5; [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_b` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `c` [INFO] [stdout] --> src/common_programming_concepts.rs:20:9 [INFO] [stdout] | [INFO] [stdout] 20 | let c = 0xff; [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_c` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `sum` [INFO] [stdout] --> src/common_programming_concepts.rs:22:9 [INFO] [stdout] | [INFO] [stdout] 22 | let sum = 5 + 10; [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_sum` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `sub` [INFO] [stdout] --> src/common_programming_concepts.rs:23:9 [INFO] [stdout] | [INFO] [stdout] 23 | let sub = 10 - 5; [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_sub` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `mul` [INFO] [stdout] --> src/common_programming_concepts.rs:24:9 [INFO] [stdout] | [INFO] [stdout] 24 | let mul = 10 * 5; [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_mul` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `div` [INFO] [stdout] --> src/common_programming_concepts.rs:25:9 [INFO] [stdout] | [INFO] [stdout] 25 | let div = 10 / 5; [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_div` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `char` [INFO] [stdout] --> src/common_programming_concepts.rs:27:9 [INFO] [stdout] | [INFO] [stdout] 27 | let char = 'a'; [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_char` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `stringb` [INFO] [stdout] --> src/common_programming_concepts.rs:28:9 [INFO] [stdout] | [INFO] [stdout] 28 | let stringb = "hello"; [INFO] [stdout] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_stringb` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `age` [INFO] [stdout] --> src/common_programming_concepts.rs:33:9 [INFO] [stdout] | [INFO] [stdout] 33 | let age = tup.1; [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_age` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0583`. [INFO] [stdout] [INFO] [stderr] error: could not compile `rust_book` (bin "rust_book" test) due to 1 previous error; 10 warnings emitted [INFO] running `Command { std: "docker" "inspect" "cd897bbf074b4bc812d952091f4f72e272431c27a1d4b49fc1644e23150af173", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "cd897bbf074b4bc812d952091f4f72e272431c27a1d4b49fc1644e23150af173", kill_on_drop: false }` [INFO] [stdout] cd897bbf074b4bc812d952091f4f72e272431c27a1d4b49fc1644e23150af173