[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 try#ce59db7a1b1b012fb2793c4641c1bdecad7a128b for pr-85530 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmodulitos%2Fprogramming-rust-book" "/workspace/builds/worker-0/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/modulitos/programming-rust-book on toolchain ce59db7a1b1b012fb2793c4641c1bdecad7a128b [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", 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-0/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" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 19b47ef2986887a0d370270fc152429a877265a0fbdd682ba161950bddef2a2b [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" "19b47ef2986887a0d370270fc152429a877265a0fbdd682ba161950bddef2a2b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "19b47ef2986887a0d370270fc152429a877265a0fbdd682ba161950bddef2a2b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "19b47ef2986887a0d370270fc152429a877265a0fbdd682ba161950bddef2a2b", kill_on_drop: false }` [INFO] [stdout] 19b47ef2986887a0d370270fc152429a877265a0fbdd682ba161950bddef2a2b [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] e03f4f973235854b1944fd4e904c4e3c981d7359dec04e742c0934bb1a5d6bdd [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" "e03f4f973235854b1944fd4e904c4e3c981d7359dec04e742c0934bb1a5d6bdd", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [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 0.72s [INFO] running `Command { std: "docker" "inspect" "e03f4f973235854b1944fd4e904c4e3c981d7359dec04e742c0934bb1a5d6bdd", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e03f4f973235854b1944fd4e904c4e3c981d7359dec04e742c0934bb1a5d6bdd", kill_on_drop: false }` [INFO] [stdout] e03f4f973235854b1944fd4e904c4e3c981d7359dec04e742c0934bb1a5d6bdd [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] aa92440c05528f6922ffdec10836b5d6ba69b5650fb9ca44ac124c09be7c1325 [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" "aa92440c05528f6922ffdec10836b5d6ba69b5650fb9ca44ac124c09be7c1325", 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 0.44s [INFO] running `Command { std: "docker" "inspect" "aa92440c05528f6922ffdec10836b5d6ba69b5650fb9ca44ac124c09be7c1325", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "aa92440c05528f6922ffdec10836b5d6ba69b5650fb9ca44ac124c09be7c1325", kill_on_drop: false }` [INFO] [stdout] aa92440c05528f6922ffdec10836b5d6ba69b5650fb9ca44ac124c09be7c1325 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] 3b5730a0e88607817aeefb7988da2143cdeb1f27e9b5a066a599e77e490b590f [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" "3b5730a0e88607817aeefb7988da2143cdeb1f27e9b5a066a599e77e490b590f", kill_on_drop: false }` [INFO] [stdout] [INFO] [stderr] warning: unused variable: `words` [INFO] [stdout] running 0 tests [INFO] [stderr] --> src/ch_11.rs:53:9 [INFO] [stdout] [INFO] [stderr] | [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stderr] 53 | let words: Vec = line [INFO] [stdout] [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 0.01s [INFO] [stderr] Running unittests (/opt/rustwide/target/debug/deps/programming_rust_book-976c0f1d656bac0a) [INFO] running `Command { std: "docker" "inspect" "3b5730a0e88607817aeefb7988da2143cdeb1f27e9b5a066a599e77e490b590f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "3b5730a0e88607817aeefb7988da2143cdeb1f27e9b5a066a599e77e490b590f", kill_on_drop: false }` [INFO] [stdout] 3b5730a0e88607817aeefb7988da2143cdeb1f27e9b5a066a599e77e490b590f