[INFO] updating cached repository https://github.com/iamazy/rust-cookbook-code [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune", kill_on_drop: false }` [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] d28dd86c5b758e4dd1970ccf6c791dc72181e0ba [INFO] testing iamazy/rust-cookbook-code against 1.45.2 for beta-1.46-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fiamazy%2Frust-cookbook-code" "/workspace/builds/worker-3/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/iamazy/rust-cookbook-code on toolchain 1.45.2 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.45.2" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/iamazy/rust-cookbook-code [INFO] finished tweaking git repo https://github.com/iamazy/rust-cookbook-code [INFO] tweaked toml for git repo https://github.com/iamazy/rust-cookbook-code written to /workspace/builds/worker-3/source/Cargo.toml [INFO] crate git repo https://github.com/iamazy/rust-cookbook-code already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.45.2" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+1.45.2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] ecfdb1dedac1ae894cde21a642f5e26231a9b10eee595ba3aa25e8c117393de7 [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "ecfdb1dedac1ae894cde21a642f5e26231a9b10eee595ba3aa25e8c117393de7", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "ecfdb1dedac1ae894cde21a642f5e26231a9b10eee595ba3aa25e8c117393de7", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "ecfdb1dedac1ae894cde21a642f5e26231a9b10eee595ba3aa25e8c117393de7", kill_on_drop: false }` [INFO] [stdout] ecfdb1dedac1ae894cde21a642f5e26231a9b10eee595ba3aa25e8c117393de7 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+1.45.2" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] b37f9282a5f98f3e4c43e485b42b028aec32b4609f2e8532503b81e13a38bd70 [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "b37f9282a5f98f3e4c43e485b42b028aec32b4609f2e8532503b81e13a38bd70", kill_on_drop: false }` [INFO] [stderr] Compiling slog v2.5.2 [INFO] [stderr] Compiling protobuf v2.0.6 [INFO] [stderr] Compiling proc-macro2 v0.4.30 [INFO] [stderr] Compiling anyhow v1.0.26 [INFO] [stderr] Compiling crossbeam v0.2.12 [INFO] [stderr] Compiling data-encoding v2.2.0 [INFO] [stderr] Compiling num-rational v0.2.3 [INFO] [stderr] Compiling dirs-sys v0.3.4 [INFO] [stderr] Compiling atty v0.2.14 [INFO] [stderr] Compiling xattr v0.2.2 [INFO] [stderr] Compiling filetime v0.2.8 [INFO] [stderr] Compiling flate2 v1.0.13 [INFO] [stderr] Compiling num-complex v0.2.4 [INFO] [stderr] Compiling bytes v0.4.12 [INFO] [stderr] Compiling num-bigint v0.2.6 [INFO] [stderr] Compiling chrono v0.4.11 [INFO] [stderr] Compiling png v0.15.3 [INFO] [stderr] Compiling error-chain v0.12.2 [INFO] [stderr] Compiling dirs v2.0.2 [INFO] [stderr] Compiling tar v0.4.26 [INFO] [stderr] Compiling regex v1.3.6 [INFO] [stderr] Compiling crossbeam-epoch v0.8.2 [INFO] [stderr] Compiling rand_distr v0.2.2 [INFO] [stderr] Compiling term v0.6.1 [INFO] [stderr] Compiling crossbeam-deque v0.7.3 [INFO] [stderr] Compiling slog-scope v4.3.0 [INFO] [stderr] Compiling slog-term v2.5.0 [INFO] [stderr] Compiling slog-async v2.5.0 [INFO] [stderr] Compiling crossbeam v0.7.3 [INFO] [stderr] Compiling rayon-core v1.7.0 [INFO] [stderr] Compiling slog-stdlog v3.0.5 [INFO] [stderr] Compiling slog-stdlog v4.0.0 [INFO] [stderr] Compiling quote v0.6.13 [INFO] [stderr] Compiling syn v0.15.44 [INFO] [stderr] Compiling rayon v1.3.0 [INFO] [stderr] Compiling slog-envlogger v2.2.0 [INFO] [stderr] Compiling num v0.2.1 [INFO] [stderr] Compiling getset v0.0.7 [INFO] [stderr] Compiling jpeg-decoder v0.1.18 [INFO] [stderr] Compiling protobuf-codegen v2.0.6 [INFO] [stderr] Compiling image v0.23.0 [INFO] [stderr] Compiling protobuf-build v0.8.0 [INFO] [stderr] Compiling raft-proto v0.6.0-alpha [INFO] [stderr] Compiling raft v0.6.0-alpha [INFO] [stderr] Compiling rust-cookbook-code v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `std::fs::create_dir_all` [INFO] [stdout] --> src/concurrency/parallel_tasks.rs:4:5 [INFO] [stdout] | [INFO] [stdout] 4 | use std::fs::create_dir_all; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `Error`, `bail` [INFO] [stdout] --> src/concurrency/parallel_tasks.rs:7:14 [INFO] [stdout] | [INFO] [stdout] 7 | use anyhow::{bail, Error, Result}; [INFO] [stdout] | ^^^^ ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `MatchOptions`, `glob_with` [INFO] [stdout] --> src/concurrency/parallel_tasks.rs:9:12 [INFO] [stdout] | [INFO] [stdout] 9 | use glob::{glob_with, MatchOptions}; [INFO] [stdout] | ^^^^^^^^^ ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around block return value [INFO] [stdout] --> src/concurrency/parallel_tasks.rs:76:17 [INFO] [stdout] | [INFO] [stdout] 76 | (x + y) [INFO] [stdout] | ^^^^^^^ help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_parens)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `error_chain::ChainedError` [INFO] [stdout] --> src/concurrency/parallel_tasks.rs:8:5 [INFO] [stdout] | [INFO] [stdout] 8 | use error_chain::ChainedError; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `decompress_tarball` [INFO] [stdout] --> src/compress/mod.rs:12:8 [INFO] [stdout] | [INFO] [stdout] 12 | pub fn decompress_tarball() -> Result<(), std::io::Error> { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `decompress_tarball2` [INFO] [stdout] --> src/compress/mod.rs:32:8 [INFO] [stdout] | [INFO] [stdout] 32 | pub fn decompress_tarball2() -> Result<()> { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `draw_fractal` [INFO] [stdout] --> src/concurrency/explicit_threads.rs:130:8 [INFO] [stdout] | [INFO] [stdout] 130 | pub fn draw_fractal() -> Result<(), RecvError> { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `julia` [INFO] [stdout] --> src/concurrency/explicit_threads.rs:159:4 [INFO] [stdout] | [INFO] [stdout] 159 | fn julia(c: Complex, x: u32, y: u32, width: u32, height: u32, max_iter: u32) -> u32 { [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `normalize` [INFO] [stdout] --> src/concurrency/explicit_threads.rs:179:4 [INFO] [stdout] | [INFO] [stdout] 179 | fn normalize(color: f32, factor: f32) -> u8 { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `wavelength_to_rgb` [INFO] [stdout] --> src/concurrency/explicit_threads.rs:183:4 [INFO] [stdout] | [INFO] [stdout] 183 | fn wavelength_to_rgb(wavelength: u32) -> Rgb { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `make_thumbnail` [INFO] [stdout] --> src/concurrency/parallel_tasks.rs:123:4 [INFO] [stdout] | [INFO] [stdout] 123 | fn make_thumbnail(original: PA, thumb_dir: PB, long_edge: u32) -> Result<()> [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 12 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 1m 15s [INFO] running `Command { std: "docker" "inspect" "b37f9282a5f98f3e4c43e485b42b028aec32b4609f2e8532503b81e13a38bd70", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "b37f9282a5f98f3e4c43e485b42b028aec32b4609f2e8532503b81e13a38bd70", kill_on_drop: false }` [INFO] [stdout] b37f9282a5f98f3e4c43e485b42b028aec32b4609f2e8532503b81e13a38bd70 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+1.45.2" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] c26ac53ecd0103b9f03efb21621a0ee136aa58d0cec51ddc813c678c005cc0cd [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "c26ac53ecd0103b9f03efb21621a0ee136aa58d0cec51ddc813c678c005cc0cd", kill_on_drop: false }` [INFO] [stderr] Compiling rust-cookbook-code v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `std::fs::create_dir_all` [INFO] [stdout] --> src/concurrency/parallel_tasks.rs:4:5 [INFO] [stdout] | [INFO] [stdout] 4 | use std::fs::create_dir_all; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `Error`, `bail` [INFO] [stdout] --> src/concurrency/parallel_tasks.rs:7:14 [INFO] [stdout] | [INFO] [stdout] 7 | use anyhow::{bail, Error, Result}; [INFO] [stdout] | ^^^^ ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `MatchOptions`, `glob_with` [INFO] [stdout] --> src/concurrency/parallel_tasks.rs:9:12 [INFO] [stdout] | [INFO] [stdout] 9 | use glob::{glob_with, MatchOptions}; [INFO] [stdout] | ^^^^^^^^^ ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around block return value [INFO] [stdout] --> src/concurrency/parallel_tasks.rs:76:17 [INFO] [stdout] | [INFO] [stdout] 76 | (x + y) [INFO] [stdout] | ^^^^^^^ help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_parens)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `error_chain::ChainedError` [INFO] [stdout] --> src/concurrency/parallel_tasks.rs:8:5 [INFO] [stdout] | [INFO] [stdout] 8 | use error_chain::ChainedError; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `decompress_tarball` [INFO] [stdout] --> src/compress/mod.rs:12:8 [INFO] [stdout] | [INFO] [stdout] 12 | pub fn decompress_tarball() -> Result<(), std::io::Error> { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `decompress_tarball2` [INFO] [stdout] --> src/compress/mod.rs:32:8 [INFO] [stdout] | [INFO] [stdout] 32 | pub fn decompress_tarball2() -> Result<()> { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `draw_fractal` [INFO] [stdout] --> src/concurrency/explicit_threads.rs:130:8 [INFO] [stdout] | [INFO] [stdout] 130 | pub fn draw_fractal() -> Result<(), RecvError> { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `julia` [INFO] [stdout] --> src/concurrency/explicit_threads.rs:159:4 [INFO] [stdout] | [INFO] [stdout] 159 | fn julia(c: Complex, x: u32, y: u32, width: u32, height: u32, max_iter: u32) -> u32 { [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `normalize` [INFO] [stdout] --> src/concurrency/explicit_threads.rs:179:4 [INFO] [stdout] | [INFO] [stdout] 179 | fn normalize(color: f32, factor: f32) -> u8 { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `wavelength_to_rgb` [INFO] [stdout] --> src/concurrency/explicit_threads.rs:183:4 [INFO] [stdout] | [INFO] [stdout] 183 | fn wavelength_to_rgb(wavelength: u32) -> Rgb { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `make_thumbnail` [INFO] [stdout] --> src/concurrency/parallel_tasks.rs:123:4 [INFO] [stdout] | [INFO] [stdout] 123 | fn make_thumbnail(original: PA, thumb_dir: PB, long_edge: u32) -> Result<()> [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 12 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 1.85s [INFO] running `Command { std: "docker" "inspect" "c26ac53ecd0103b9f03efb21621a0ee136aa58d0cec51ddc813c678c005cc0cd", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "c26ac53ecd0103b9f03efb21621a0ee136aa58d0cec51ddc813c678c005cc0cd", kill_on_drop: false }` [INFO] [stdout] c26ac53ecd0103b9f03efb21621a0ee136aa58d0cec51ddc813c678c005cc0cd [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+1.45.2" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] 0b2090eedc23049995c42c84775720a3745995e08059cdc34aa00341e4c752ab [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "0b2090eedc23049995c42c84775720a3745995e08059cdc34aa00341e4c752ab", kill_on_drop: false }` [INFO] [stderr] warning: unused import: `std::fs::create_dir_all` [INFO] [stderr] --> src/concurrency/parallel_tasks.rs:4:5 [INFO] [stderr] | [INFO] [stderr] 4 | use std::fs::create_dir_all; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused imports: `Error`, `bail` [INFO] [stderr] --> src/concurrency/parallel_tasks.rs:7:14 [INFO] [stderr] | [INFO] [stderr] 7 | use anyhow::{bail, Error, Result}; [INFO] [stderr] | ^^^^ ^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused imports: `MatchOptions`, `glob_with` [INFO] [stderr] --> src/concurrency/parallel_tasks.rs:9:12 [INFO] [stderr] | [INFO] [stderr] 9 | use glob::{glob_with, MatchOptions}; [INFO] [stderr] | ^^^^^^^^^ ^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unnecessary parentheses around block return value [INFO] [stderr] --> src/concurrency/parallel_tasks.rs:76:17 [INFO] [stderr] | [INFO] [stderr] 76 | (x + y) [INFO] [stderr] | ^^^^^^^ help: remove these parentheses [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_parens)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused import: `error_chain::ChainedError` [INFO] [stderr] --> src/concurrency/parallel_tasks.rs:8:5 [INFO] [stderr] | [INFO] [stderr] 8 | use error_chain::ChainedError; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `decompress_tarball` [INFO] [stderr] --> src/compress/mod.rs:12:8 [INFO] [stderr] | [INFO] [stderr] 12 | pub fn decompress_tarball() -> Result<(), std::io::Error> { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: function is never used: `decompress_tarball2` [INFO] [stderr] --> src/compress/mod.rs:32:8 [INFO] [stderr] | [INFO] [stderr] 32 | pub fn decompress_tarball2() -> Result<()> { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `draw_fractal` [INFO] [stderr] --> src/concurrency/explicit_threads.rs:130:8 [INFO] [stderr] | [INFO] [stderr] 130 | pub fn draw_fractal() -> Result<(), RecvError> { [INFO] [stderr] | ^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `julia` [INFO] [stderr] --> src/concurrency/explicit_threads.rs:159:4 [INFO] [stderr] | [INFO] [stderr] 159 | fn julia(c: Complex, x: u32, y: u32, width: u32, height: u32, max_iter: u32) -> u32 { [INFO] [stderr] | ^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `normalize` [INFO] [stderr] --> src/concurrency/explicit_threads.rs:179:4 [INFO] [stderr] | [INFO] [stderr] 179 | fn normalize(color: f32, factor: f32) -> u8 { [INFO] [stderr] | ^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `wavelength_to_rgb` [INFO] [stderr] --> src/concurrency/explicit_threads.rs:183:4 [INFO] [stderr] | [INFO] [stderr] 183 | fn wavelength_to_rgb(wavelength: u32) -> Rgb { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `make_thumbnail` [INFO] [stderr] --> src/concurrency/parallel_tasks.rs:123:4 [INFO] [stderr] | [INFO] [stderr] 123 | fn make_thumbnail(original: PA, thumb_dir: PB, long_edge: u32) -> Result<()> [INFO] [stderr] | ^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: 12 warnings emitted [INFO] [stderr] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.65s [INFO] [stderr] Running /opt/rustwide/target/debug/deps/rust_cookbook_code-6535f352f4434323 [INFO] [stdout] [INFO] [stdout] running 0 tests [INFO] [stdout] [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "0b2090eedc23049995c42c84775720a3745995e08059cdc34aa00341e4c752ab", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "0b2090eedc23049995c42c84775720a3745995e08059cdc34aa00341e4c752ab", kill_on_drop: false }` [INFO] [stdout] 0b2090eedc23049995c42c84775720a3745995e08059cdc34aa00341e4c752ab