[INFO] cloning repository https://github.com/Artmari/rust-book-code-examples
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Artmari/rust-book-code-examples" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FArtmari%2Frust-book-code-examples", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FArtmari%2Frust-book-code-examples'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 031a4cb5bac95df8e65a7c5efd8df5232b0594ed
[INFO] testing Artmari/rust-book-code-examples against 1.60.0 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FArtmari%2Frust-book-code-examples" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Artmari/rust-book-code-examples on toolchain 1.60.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Artmari/rust-book-code-examples
[INFO] finished tweaking git repo https://github.com/Artmari/rust-book-code-examples
[INFO] tweaked toml for git repo https://github.com/Artmari/rust-book-code-examples written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/Artmari/rust-book-code-examples already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 408f86eb68e216efef0784dc1684e92c1e88091e472e878698fef3a06e35fae0
[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" "408f86eb68e216efef0784dc1684e92c1e88091e472e878698fef3a06e35fae0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "408f86eb68e216efef0784dc1684e92c1e88091e472e878698fef3a06e35fae0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "408f86eb68e216efef0784dc1684e92c1e88091e472e878698fef3a06e35fae0", kill_on_drop: false }`
[INFO] [stdout] 408f86eb68e216efef0784dc1684e92c1e88091e472e878698fef3a06e35fae0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] d7021ca66e06f411396af20de281be6ed24916b03a125515dd7a636cb1aa1f7e
[INFO] running `Command { std: "docker" "start" "-a" "d7021ca66e06f411396af20de281be6ed24916b03a125515dd7a636cb1aa1f7e", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.107
[INFO] [stderr]    Compiling ppv-lite86 v0.2.15
[INFO] [stderr]    Compiling getrandom v0.2.3
[INFO] [stderr]    Compiling rand_core v0.6.3
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.4
[INFO] [stderr]    Compiling first_rust_project v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `crate::ch2_programming_a_guessing_game::secret_number`
[INFO] [stdout]  --> src/main.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use crate::ch2_programming_a_guessing_game::secret_number;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::ch5_1_defining_structs::users_struct`
[INFO] [stdout]  --> src/main.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use crate::ch5_1_defining_structs::users_struct;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `secret_number`
[INFO] [stdout]  --> src/ch2_programming_a_guessing_game.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub fn secret_number() {
[INFO] [stdout]   |        ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `users_struct`
[INFO] [stdout]   --> src/ch5_1_defining_structs.rs:16:8
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub fn users_struct() {
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 10.42s
[INFO] running `Command { std: "docker" "inspect" "d7021ca66e06f411396af20de281be6ed24916b03a125515dd7a636cb1aa1f7e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d7021ca66e06f411396af20de281be6ed24916b03a125515dd7a636cb1aa1f7e", kill_on_drop: false }`
[INFO] [stdout] d7021ca66e06f411396af20de281be6ed24916b03a125515dd7a636cb1aa1f7e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 32daa6f6640d60258ffdbc7d177281b1596666ec986a2a8cdbfcea3958e0763a
[INFO] running `Command { std: "docker" "start" "-a" "32daa6f6640d60258ffdbc7d177281b1596666ec986a2a8cdbfcea3958e0763a", kill_on_drop: false }`
[INFO] [stderr]    Compiling first_rust_project v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `crate::ch2_programming_a_guessing_game::secret_number`
[INFO] [stdout]  --> src/main.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use crate::ch2_programming_a_guessing_game::secret_number;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::ch5_1_defining_structs::users_struct`
[INFO] [stdout]  --> src/main.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use crate::ch5_1_defining_structs::users_struct;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `secret_number`
[INFO] [stdout]  --> src/ch2_programming_a_guessing_game.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub fn secret_number() {
[INFO] [stdout]   |        ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `users_struct`
[INFO] [stdout]   --> src/ch5_1_defining_structs.rs:16:8
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub fn users_struct() {
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.94s
[INFO] running `Command { std: "docker" "inspect" "32daa6f6640d60258ffdbc7d177281b1596666ec986a2a8cdbfcea3958e0763a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "32daa6f6640d60258ffdbc7d177281b1596666ec986a2a8cdbfcea3958e0763a", kill_on_drop: false }`
[INFO] [stdout] 32daa6f6640d60258ffdbc7d177281b1596666ec986a2a8cdbfcea3958e0763a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] ad2c93f254338a2f0cec7093eb2ffa87d0bce147a9d1ee240ef5e00b6e849a19
[INFO] running `Command { std: "docker" "start" "-a" "ad2c93f254338a2f0cec7093eb2ffa87d0bce147a9d1ee240ef5e00b6e849a19", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `crate::ch2_programming_a_guessing_game::secret_number`
[INFO] [stdout] 
[INFO] [stderr]  --> src/main.rs:5:5
[INFO] [stdout] running 0 tests
[INFO] [stderr]   |
[INFO] [stdout] 
[INFO] [stderr] 5 | use crate::ch2_programming_a_guessing_game::secret_number;
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::ch5_1_defining_structs::users_struct`
[INFO] [stderr]  --> src/main.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 | use crate::ch5_1_defining_structs::users_struct;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `secret_number`
[INFO] [stderr]  --> src/ch2_programming_a_guessing_game.rs:5:8
[INFO] [stderr]   |
[INFO] [stderr] 5 | pub fn secret_number() {
[INFO] [stderr]   |        ^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `users_struct`
[INFO] [stderr]   --> src/ch5_1_defining_structs.rs:16:8
[INFO] [stderr]    |
[INFO] [stderr] 16 | pub fn users_struct() {
[INFO] [stderr]    |        ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `first_rust_project` (bin "first_rust_project" test) generated 4 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/first_rust_project-57c91a785e37fd0b)
[INFO] running `Command { std: "docker" "inspect" "ad2c93f254338a2f0cec7093eb2ffa87d0bce147a9d1ee240ef5e00b6e849a19", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ad2c93f254338a2f0cec7093eb2ffa87d0bce147a9d1ee240ef5e00b6e849a19", kill_on_drop: false }`
[INFO] [stdout] ad2c93f254338a2f0cec7093eb2ffa87d0bce147a9d1ee240ef5e00b6e849a19