[INFO] cloning repository https://github.com/kuroega/rust_from_the_book [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/kuroega/rust_from_the_book" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkuroega%2Frust_from_the_book", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkuroega%2Frust_from_the_book'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] a7f81d228dbf4042d3a2e02a087c307a20373d0d [INFO] testing kuroega/rust_from_the_book against beta-2022-04-10 for beta-1.61-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkuroega%2Frust_from_the_book" "/workspace/builds/worker-7/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/kuroega/rust_from_the_book on toolchain beta-2022-04-10 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/kuroega/rust_from_the_book [INFO] finished tweaking git repo https://github.com/kuroega/rust_from_the_book [INFO] tweaked toml for git repo https://github.com/kuroega/rust_from_the_book written to /workspace/builds/worker-7/source/Cargo.toml [INFO] crate git repo https://github.com/kuroega/rust_from_the_book already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 229df78698f872ecca2bbf0e0436d915648ccdf493b3d3f0db1e3a8507e5efc1 [INFO] running `Command { std: "docker" "start" "-a" "229df78698f872ecca2bbf0e0436d915648ccdf493b3d3f0db1e3a8507e5efc1", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "229df78698f872ecca2bbf0e0436d915648ccdf493b3d3f0db1e3a8507e5efc1", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "229df78698f872ecca2bbf0e0436d915648ccdf493b3d3f0db1e3a8507e5efc1", kill_on_drop: false }` [INFO] [stdout] 229df78698f872ecca2bbf0e0436d915648ccdf493b3d3f0db1e3a8507e5efc1 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 6f30de13d5af3695ca1d52c1537887eb3e14d73abbe41f42ba1c9751bdf48824 [INFO] running `Command { std: "docker" "start" "-a" "6f30de13d5af3695ca1d52c1537887eb3e14d73abbe41f42ba1c9751bdf48824", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.51 [INFO] [stderr] Compiling rand v0.4.6 [INFO] [stderr] Compiling learn-rust v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 2.85s [INFO] running `Command { std: "docker" "inspect" "6f30de13d5af3695ca1d52c1537887eb3e14d73abbe41f42ba1c9751bdf48824", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "6f30de13d5af3695ca1d52c1537887eb3e14d73abbe41f42ba1c9751bdf48824", kill_on_drop: false }` [INFO] [stdout] 6f30de13d5af3695ca1d52c1537887eb3e14d73abbe41f42ba1c9751bdf48824 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 1b9e640bb93879e3e1c0233f33c2c95c8ba5fabf9e51936fe701337cc244739f [INFO] running `Command { std: "docker" "start" "-a" "1b9e640bb93879e3e1c0233f33c2c95c8ba5fabf9e51936fe701337cc244739f", kill_on_drop: false }` [INFO] [stderr] Compiling learn-rust v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: field is never read: `username` [INFO] [stdout] --> examples/struct_demo3.rs:2:5 [INFO] [stdout] | [INFO] [stdout] 2 | username: String, [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `active` [INFO] [stdout] --> examples/struct_demo3.rs:5:5 [INFO] [stdout] | [INFO] [stdout] 5 | active: bool, [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `name` [INFO] [stdout] --> examples/struc_demo2.rs:3:5 [INFO] [stdout] | [INFO] [stdout] 3 | 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] --> examples/struc_demo2.rs:1:10 [INFO] [stdout] | [INFO] [stdout] 1 | #[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] --> examples/struc_demo2.rs:4:5 [INFO] [stdout] | [INFO] [stdout] 4 | 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] --> examples/struc_demo2.rs:1:10 [INFO] [stdout] | [INFO] [stdout] 1 | #[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: unused variable: `s1` [INFO] [stdout] --> examples/ownership_demo.rs:16:9 [INFO] [stdout] | [INFO] [stdout] 16 | let s1 = gives_ownership(); [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_s1` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `s3` [INFO] [stdout] --> examples/ownership_demo.rs:18:9 [INFO] [stdout] | [INFO] [stdout] 18 | let s3 = takes_and_gives_back(s2); [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_s3` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.49s [INFO] [stderr] Executable unittests src/lib.rs (/opt/rustwide/target/debug/deps/learn_rust-aa4f6717f41cfd70) [INFO] running `Command { std: "docker" "inspect" "1b9e640bb93879e3e1c0233f33c2c95c8ba5fabf9e51936fe701337cc244739f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "1b9e640bb93879e3e1c0233f33c2c95c8ba5fabf9e51936fe701337cc244739f", kill_on_drop: false }` [INFO] [stdout] 1b9e640bb93879e3e1c0233f33c2c95c8ba5fabf9e51936fe701337cc244739f [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] 63bdded2d0c9cb4f5611c1757852bae81dbaeb162e27603aaef34394b15657cb [INFO] running `Command { std: "docker" "start" "-a" "63bdded2d0c9cb4f5611c1757852bae81dbaeb162e27603aaef34394b15657cb", kill_on_drop: false }` [INFO] [stderr] warning: field is never read: `username` [INFO] [stderr] --> examples/struct_demo3.rs:2:5 [INFO] [stderr] | [INFO] [stderr] 2 | username: String, [INFO] [stderr] | ^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: field is never read: `active` [INFO] [stderr] --> examples/struct_demo3.rs:5:5 [INFO] [stderr] | [INFO] [stderr] 5 | active: bool, [INFO] [stderr] | ^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: `learn-rust` (example "struct_demo3") generated 2 warnings [INFO] [stderr] warning: unused variable: `s1` [INFO] [stderr] --> examples/ownership_demo.rs:16:9 [INFO] [stderr] | [INFO] [stderr] 16 | let s1 = gives_ownership(); [INFO] [stderr] | ^^ help: if this is intentional, prefix it with an underscore: `_s1` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `s3` [INFO] [stderr] --> examples/ownership_demo.rs:18:9 [INFO] [stderr] | [INFO] [stderr] 18 | let s3 = takes_and_gives_back(s2); [INFO] [stderr] | ^^ help: if this is intentional, prefix it with an underscore: `_s3` [INFO] [stderr] [INFO] [stderr] warning: field is never read: `name` [INFO] [stderr] --> examples/struc_demo2.rs:3:5 [INFO] [stderr] | [INFO] [stderr] 3 | 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] --> examples/struc_demo2.rs:1:10 [INFO] [stderr] | [INFO] [stderr] 1 | #[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] --> examples/struc_demo2.rs:4:5 [INFO] [stderr] | [INFO] [stderr] 4 | 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] --> examples/struc_demo2.rs:1:10 [INFO] [stderr] | [INFO] [stderr] 1 | #[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: `learn-rust` (example "ownership_demo") generated 2 warnings [INFO] [stderr] warning: `learn-rust` (example "struc_demo2") generated 2 warnings [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.01s [INFO] [stderr] Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/learn_rust-aa4f6717f41cfd70) [INFO] [stdout] [INFO] [stdout] running 1 test [INFO] [stdout] test tests::it_works ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] [stderr] Doc-tests learn_rust [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" "63bdded2d0c9cb4f5611c1757852bae81dbaeb162e27603aaef34394b15657cb", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "63bdded2d0c9cb4f5611c1757852bae81dbaeb162e27603aaef34394b15657cb", kill_on_drop: false }` [INFO] [stdout] 63bdded2d0c9cb4f5611c1757852bae81dbaeb162e27603aaef34394b15657cb