[INFO] cloning repository https://github.com/modulitos/programming-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/modulitos/programming-rust-book" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmodulitos%2Fprogramming-rust-book", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmodulitos%2Fprogramming-rust-book'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 1df18938c89c4f63579528fb8fddba6a20ae2082 [INFO] testing modulitos/programming-rust-book against 1.49.0 for beta-1.50-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmodulitos%2Fprogramming-rust-book" "/workspace/builds/worker-4/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/modulitos/programming-rust-book on toolchain 1.49.0 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/modulitos/programming-rust-book [INFO] finished tweaking git repo https://github.com/modulitos/programming-rust-book [INFO] tweaked toml for git repo https://github.com/modulitos/programming-rust-book written to /workspace/builds/worker-4/source/Cargo.toml [INFO] crate git repo https://github.com/modulitos/programming-rust-book already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "fetch" "--locked" "--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-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 6ccd8a079981af1e205195c4389215fdff7f73c8e8a3328e12b6f6c3fa87113f [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" "6ccd8a079981af1e205195c4389215fdff7f73c8e8a3328e12b6f6c3fa87113f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "6ccd8a079981af1e205195c4389215fdff7f73c8e8a3328e12b6f6c3fa87113f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "6ccd8a079981af1e205195c4389215fdff7f73c8e8a3328e12b6f6c3fa87113f", kill_on_drop: false }` [INFO] [stdout] 6ccd8a079981af1e205195c4389215fdff7f73c8e8a3328e12b6f6c3fa87113f [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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=warn" "-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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] e8f06893fd5520c5d21c8174c9cb88359b74afcb6d388c06ca59078274ac7259 [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" "e8f06893fd5520c5d21c8174c9cb88359b74afcb6d388c06ca59078274ac7259", kill_on_drop: false }` [INFO] [stderr] Compiling programming_rust_book v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused variable: `words` [INFO] [stdout] --> src/ch_11.rs:53:9 [INFO] [stdout] | [INFO] [stdout] 53 | let words: Vec = line [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_words` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `other` [INFO] [stdout] --> src/ch_11.rs:11:22 [INFO] [stdout] | [INFO] [stdout] 11 | fn splice(&self, other: &Self) -> Self { [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_other` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `other` [INFO] [stdout] --> src/ch_11.rs:20:22 [INFO] [stdout] | [INFO] [stdout] 20 | fn splice(&self, other: &Self) -> Self { [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_other` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `other` [INFO] [stdout] --> src/ch_11.rs:37:22 [INFO] [stdout] | [INFO] [stdout] 37 | fn splice(&self, other: &dyn MegaSpliceable) -> Box { [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_other` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `other` [INFO] [stdout] --> src/ch_11.rs:44:22 [INFO] [stdout] | [INFO] [stdout] 44 | fn splice(&self, other: &dyn MegaSpliceable) -> Box { [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_other` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `test_fqmc` [INFO] [stdout] --> src/ch_11.rs:51:4 [INFO] [stdout] | [INFO] [stdout] 51 | fn test_fqmc() { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `dump` [INFO] [stdout] --> src/ch_11.rs:74:4 [INFO] [stdout] | [INFO] [stdout] 74 | fn dump(iter: I) [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 7 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.88s [INFO] running `Command { std: "docker" "inspect" "e8f06893fd5520c5d21c8174c9cb88359b74afcb6d388c06ca59078274ac7259", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e8f06893fd5520c5d21c8174c9cb88359b74afcb6d388c06ca59078274ac7259", kill_on_drop: false }` [INFO] [stdout] e8f06893fd5520c5d21c8174c9cb88359b74afcb6d388c06ca59078274ac7259 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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=warn" "-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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 35c507351b3cff0f70da71f0f1d0421f2c00ffd05be6deba478b95fb2a73aaea [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" "35c507351b3cff0f70da71f0f1d0421f2c00ffd05be6deba478b95fb2a73aaea", kill_on_drop: false }` [INFO] [stderr] Compiling programming_rust_book v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused variable: `words` [INFO] [stdout] --> src/ch_11.rs:53:9 [INFO] [stdout] | [INFO] [stdout] 53 | let words: Vec = line [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_words` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `other` [INFO] [stdout] --> src/ch_11.rs:11:22 [INFO] [stdout] | [INFO] [stdout] 11 | fn splice(&self, other: &Self) -> Self { [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_other` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `other` [INFO] [stdout] --> src/ch_11.rs:20:22 [INFO] [stdout] | [INFO] [stdout] 20 | fn splice(&self, other: &Self) -> Self { [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_other` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `other` [INFO] [stdout] --> src/ch_11.rs:37:22 [INFO] [stdout] | [INFO] [stdout] 37 | fn splice(&self, other: &dyn MegaSpliceable) -> Box { [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_other` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `other` [INFO] [stdout] --> src/ch_11.rs:44:22 [INFO] [stdout] | [INFO] [stdout] 44 | fn splice(&self, other: &dyn MegaSpliceable) -> Box { [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_other` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `test_fqmc` [INFO] [stdout] --> src/ch_11.rs:51:4 [INFO] [stdout] | [INFO] [stdout] 51 | fn test_fqmc() { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `dump` [INFO] [stdout] --> src/ch_11.rs:74:4 [INFO] [stdout] | [INFO] [stdout] 74 | fn dump(iter: I) [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 7 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.88s [INFO] running `Command { std: "docker" "inspect" "35c507351b3cff0f70da71f0f1d0421f2c00ffd05be6deba478b95fb2a73aaea", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "35c507351b3cff0f70da71f0f1d0421f2c00ffd05be6deba478b95fb2a73aaea", kill_on_drop: false }` [INFO] [stdout] 35c507351b3cff0f70da71f0f1d0421f2c00ffd05be6deba478b95fb2a73aaea [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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=warn" "-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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] ee8f4976ffec970806b19afafcefa1ddd7f379e7c1d2f8c8bb3432674b15d4af [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" "ee8f4976ffec970806b19afafcefa1ddd7f379e7c1d2f8c8bb3432674b15d4af", kill_on_drop: false }` [INFO] [stderr] warning: unused variable: `words` [INFO] [stderr] --> src/ch_11.rs:53:9 [INFO] [stderr] | [INFO] [stderr] 53 | let words: Vec = line [INFO] [stderr] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_words` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `other` [INFO] [stderr] --> src/ch_11.rs:11:22 [INFO] [stderr] | [INFO] [stderr] 11 | fn splice(&self, other: &Self) -> Self { [INFO] [stderr] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_other` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `other` [INFO] [stderr] --> src/ch_11.rs:20:22 [INFO] [stderr] | [INFO] [stderr] 20 | fn splice(&self, other: &Self) -> Self { [INFO] [stderr] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_other` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `other` [INFO] [stderr] --> src/ch_11.rs:37:22 [INFO] [stderr] | [INFO] [stderr] 37 | fn splice(&self, other: &dyn MegaSpliceable) -> Box { [INFO] [stderr] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_other` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `other` [INFO] [stderr] --> src/ch_11.rs:44:22 [INFO] [stderr] | [INFO] [stderr] 44 | fn splice(&self, other: &dyn MegaSpliceable) -> Box { [INFO] [stderr] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_other` [INFO] [stderr] [INFO] [stderr] warning: function is never used: `test_fqmc` [INFO] [stderr] --> src/ch_11.rs:51:4 [INFO] [stderr] | [INFO] [stderr] 51 | fn test_fqmc() { [INFO] [stderr] | ^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: function is never used: `dump` [INFO] [stderr] --> src/ch_11.rs:74:4 [INFO] [stderr] | [INFO] [stderr] 74 | fn dump(iter: I) [INFO] [stderr] | ^^^^ [INFO] [stderr] [INFO] [stderr] warning: 7 warnings emitted [INFO] [stderr] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.04s [INFO] [stderr] Running /opt/rustwide/target/debug/deps/programming_rust_book-b9729fe856d83c49 [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" "ee8f4976ffec970806b19afafcefa1ddd7f379e7c1d2f8c8bb3432674b15d4af", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "ee8f4976ffec970806b19afafcefa1ddd7f379e7c1d2f8c8bb3432674b15d4af", kill_on_drop: false }` [INFO] [stdout] ee8f4976ffec970806b19afafcefa1ddd7f379e7c1d2f8c8bb3432674b15d4af