[INFO] cloning repository https://github.com/shantanoo-desai/rust-by-example [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/shantanoo-desai/rust-by-example" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fshantanoo-desai%2Frust-by-example", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fshantanoo-desai%2Frust-by-example'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 510332e4912427b5f684f7ba492370b036fd209d [INFO] testing shantanoo-desai/rust-by-example against beta-2022-02-22 for beta-1.60-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fshantanoo-desai%2Frust-by-example" "/workspace/builds/worker-74/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-74/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/shantanoo-desai/rust-by-example on toolchain beta-2022-02-22 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/shantanoo-desai/rust-by-example [INFO] finished tweaking git repo https://github.com/shantanoo-desai/rust-by-example [INFO] tweaked toml for git repo https://github.com/shantanoo-desai/rust-by-example written to /workspace/builds/worker-74/source/Cargo.toml [INFO] crate git repo https://github.com/shantanoo-desai/rust-by-example already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "fetch" "--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-74/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-74/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] bcd11a9de384c924781e6dbb0c44a952fc9ae0f3a7c5a6757a2b8e7540b9506b [INFO] running `Command { std: "docker" "start" "-a" "bcd11a9de384c924781e6dbb0c44a952fc9ae0f3a7c5a6757a2b8e7540b9506b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "bcd11a9de384c924781e6dbb0c44a952fc9ae0f3a7c5a6757a2b8e7540b9506b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "bcd11a9de384c924781e6dbb0c44a952fc9ae0f3a7c5a6757a2b8e7540b9506b", kill_on_drop: false }` [INFO] [stdout] bcd11a9de384c924781e6dbb0c44a952fc9ae0f3a7c5a6757a2b8e7540b9506b [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-74/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-74/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 1569205a9b6e05d8915271aeccb5fef6e6b5feaa7f7631ff097425e90c2fff94 [INFO] running `Command { std: "docker" "start" "-a" "1569205a9b6e05d8915271aeccb5fef6e6b5feaa7f7631ff097425e90c2fff94", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Compiling rust-by-example v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: field is never read: `name` [INFO] [stdout] --> src/chapter1/formatted_debug.rs:13:5 [INFO] [stdout] | [INFO] [stdout] 13 | name: &'a str, [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] note: `Person` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] --> src/chapter1/formatted_debug.rs:11:10 [INFO] [stdout] | [INFO] [stdout] 11 | #[derive(Debug)] [INFO] [stdout] | ^^^^^ [INFO] [stdout] = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `age` [INFO] [stdout] --> src/chapter1/formatted_debug.rs:14:5 [INFO] [stdout] | [INFO] [stdout] 14 | age: u8, [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] note: `Person` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] --> src/chapter1/formatted_debug.rs:11:10 [INFO] [stdout] | [INFO] [stdout] 11 | #[derive(Debug)] [INFO] [stdout] | ^^^^^ [INFO] [stdout] = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `name` [INFO] [stdout] --> src/chapter3/structures.rs:6:5 [INFO] [stdout] | [INFO] [stdout] 6 | name: String, [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] note: `Person` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] --> src/chapter3/structures.rs:4:10 [INFO] [stdout] | [INFO] [stdout] 4 | #[derive(Debug)] [INFO] [stdout] | ^^^^^ [INFO] [stdout] = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `age` [INFO] [stdout] --> src/chapter3/structures.rs:7:5 [INFO] [stdout] | [INFO] [stdout] 7 | age: u8, [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] note: `Person` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] --> src/chapter3/structures.rs:4:10 [INFO] [stdout] | [INFO] [stdout] 4 | #[derive(Debug)] [INFO] [stdout] | ^^^^^ [INFO] [stdout] = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 36.32s [INFO] running `Command { std: "docker" "inspect" "1569205a9b6e05d8915271aeccb5fef6e6b5feaa7f7631ff097425e90c2fff94", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "1569205a9b6e05d8915271aeccb5fef6e6b5feaa7f7631ff097425e90c2fff94", kill_on_drop: false }` [INFO] [stdout] 1569205a9b6e05d8915271aeccb5fef6e6b5feaa7f7631ff097425e90c2fff94 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-74/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-74/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 939ed496842a61f2d03b3e139094f6c17ee962115cd978371184e57dcbab2799 [INFO] running `Command { std: "docker" "start" "-a" "939ed496842a61f2d03b3e139094f6c17ee962115cd978371184e57dcbab2799", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Compiling rust-by-example v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: field is never read: `name` [INFO] [stdout] --> src/chapter1/formatted_debug.rs:13:5 [INFO] [stdout] | [INFO] [stdout] 13 | name: &'a str, [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] note: `Person` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] --> src/chapter1/formatted_debug.rs:11:10 [INFO] [stdout] | [INFO] [stdout] 11 | #[derive(Debug)] [INFO] [stdout] | ^^^^^ [INFO] [stdout] = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `age` [INFO] [stdout] --> src/chapter1/formatted_debug.rs:14:5 [INFO] [stdout] | [INFO] [stdout] 14 | age: u8, [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] note: `Person` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] --> src/chapter1/formatted_debug.rs:11:10 [INFO] [stdout] | [INFO] [stdout] 11 | #[derive(Debug)] [INFO] [stdout] | ^^^^^ [INFO] [stdout] = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `name` [INFO] [stdout] --> src/chapter3/structures.rs:6:5 [INFO] [stdout] | [INFO] [stdout] 6 | name: String, [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] note: `Person` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] --> src/chapter3/structures.rs:4:10 [INFO] [stdout] | [INFO] [stdout] 4 | #[derive(Debug)] [INFO] [stdout] | ^^^^^ [INFO] [stdout] = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `age` [INFO] [stdout] --> src/chapter3/structures.rs:7:5 [INFO] [stdout] | [INFO] [stdout] 7 | age: u8, [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] note: `Person` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] --> src/chapter3/structures.rs:4:10 [INFO] [stdout] | [INFO] [stdout] 4 | #[derive(Debug)] [INFO] [stdout] | ^^^^^ [INFO] [stdout] = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 21.15s [INFO] running `Command { std: "docker" "inspect" "939ed496842a61f2d03b3e139094f6c17ee962115cd978371184e57dcbab2799", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "939ed496842a61f2d03b3e139094f6c17ee962115cd978371184e57dcbab2799", kill_on_drop: false }` [INFO] [stdout] 939ed496842a61f2d03b3e139094f6c17ee962115cd978371184e57dcbab2799 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-74/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-74/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] 97c327f3d6d88f8b5138c5f60ebe97606770318e10a671c62b81e7bdaf5dc49e [INFO] running `Command { std: "docker" "start" "-a" "97c327f3d6d88f8b5138c5f60ebe97606770318e10a671c62b81e7bdaf5dc49e", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] warning: field is never read: `name` [INFO] [stderr] --> src/chapter1/formatted_debug.rs:13:5 [INFO] [stderr] | [INFO] [stderr] 13 | name: &'a str, [INFO] [stderr] | ^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] note: `Person` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stderr] --> src/chapter1/formatted_debug.rs:11:10 [INFO] [stderr] | [INFO] [stderr] 11 | #[derive(Debug)] [INFO] [stderr] | ^^^^^ [INFO] [stderr] = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] warning: field is never read: `age` [INFO] [stderr] --> src/chapter1/formatted_debug.rs:14:5 [INFO] [stderr] | [INFO] [stderr] 14 | age: u8, [INFO] [stderr] | ^^^^^^^ [INFO] [stderr] | [INFO] [stderr] note: `Person` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stderr] --> src/chapter1/formatted_debug.rs:11:10 [INFO] [stderr] | [INFO] [stderr] 11 | #[derive(Debug)] [INFO] [stderr] | ^^^^^ [INFO] [stderr] = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] warning: field is never read: `name` [INFO] [stderr] --> src/chapter3/structures.rs:6:5 [INFO] [stderr] | [INFO] [stderr] 6 | name: String, [INFO] [stderr] | ^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] note: `Person` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stderr] --> src/chapter3/structures.rs:4:10 [INFO] [stderr] | [INFO] [stderr] 4 | #[derive(Debug)] [INFO] [stderr] | ^^^^^ [INFO] [stderr] = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] warning: field is never read: `age` [INFO] [stderr] --> src/chapter3/structures.rs:7:5 [INFO] [stderr] | [INFO] [stderr] 7 | age: u8, [INFO] [stderr] | ^^^^^^^ [INFO] [stderr] | [INFO] [stderr] note: `Person` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stderr] --> src/chapter3/structures.rs:4:10 [INFO] [stderr] | [INFO] [stderr] 4 | #[derive(Debug)] [INFO] [stderr] | ^^^^^ [INFO] [stderr] = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] warning: `rust-by-example` (bin "rust-by-example" test) generated 4 warnings [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 1.83s [INFO] [stderr] Running unittests (/opt/rustwide/target/debug/deps/rust_by_example-8f66b44072806835) [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; finished in 0.00s [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "97c327f3d6d88f8b5138c5f60ebe97606770318e10a671c62b81e7bdaf5dc49e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "97c327f3d6d88f8b5138c5f60ebe97606770318e10a671c62b81e7bdaf5dc49e", kill_on_drop: false }` [INFO] [stdout] 97c327f3d6d88f8b5138c5f60ebe97606770318e10a671c62b81e7bdaf5dc49e