[INFO] cloning repository https://github.com/fnick851/rust-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/fnick851/rust-the-book" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffnick851%2Frust-the-book", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffnick851%2Frust-the-book'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 89593b4179cbb581f9f7fe49ad516af2d35f0ab7 [INFO] testing fnick851/rust-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%2Ffnick851%2Frust-the-book" "/workspace/builds/worker-19/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-19/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/fnick851/rust-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/fnick851/rust-the-book [INFO] finished tweaking git repo https://github.com/fnick851/rust-the-book [INFO] tweaked toml for git repo https://github.com/fnick851/rust-the-book written to /workspace/builds/worker-19/source/Cargo.toml [INFO] crate git repo https://github.com/fnick851/rust-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] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-19/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-19/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] cc8c29068fb0e2a84bcae2fc17e3bceeb4a8b7c49eb554f989975e14b47ed7bb [INFO] running `Command { std: "docker" "start" "-a" "cc8c29068fb0e2a84bcae2fc17e3bceeb4a8b7c49eb554f989975e14b47ed7bb", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "cc8c29068fb0e2a84bcae2fc17e3bceeb4a8b7c49eb554f989975e14b47ed7bb", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "cc8c29068fb0e2a84bcae2fc17e3bceeb4a8b7c49eb554f989975e14b47ed7bb", kill_on_drop: false }` [INFO] [stdout] cc8c29068fb0e2a84bcae2fc17e3bceeb4a8b7c49eb554f989975e14b47ed7bb [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-19/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-19/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] 2c8956a703996cff867fa122d2e8e2d2d0937e8e119f929176fab60da621eafa [INFO] running `Command { std: "docker" "start" "-a" "2c8956a703996cff867fa122d2e8e2d2d0937e8e119f929176fab60da621eafa", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.65 [INFO] [stderr] Compiling cc v1.0.46 [INFO] [stderr] Compiling bitflags v1.2.1 [INFO] [stderr] Compiling rustc-demangle v0.1.16 [INFO] [stderr] Compiling unicode-width v0.1.6 [INFO] [stderr] Compiling smallvec v0.4.5 [INFO] [stderr] Compiling textwrap v0.11.0 [INFO] [stderr] Compiling backtrace-sys v0.1.32 [INFO] [stderr] Compiling atty v0.2.13 [INFO] [stderr] Compiling rand v0.4.6 [INFO] [stderr] Compiling clap v2.33.0 [INFO] [stderr] Compiling rand v0.3.23 [INFO] [stderr] Compiling backtrace v0.3.40 [INFO] [stderr] Compiling error-chain v0.10.0 [INFO] [stderr] Compiling ferris-says v0.1.1 [INFO] [stderr] Compiling hello_rust v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/bin/vector.rs:2:9 [INFO] [stdout] | [INFO] [stdout] 2 | let mut v = vec![1, 2, 3, 4, 5]; [INFO] [stdout] | ----^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `state` [INFO] [stdout] --> src/bin/enum.rs:29:26 [INFO] [stdout] | [INFO] [stdout] 29 | if let Coin::Quarter(state) = some_value { [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_state` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `s` [INFO] [stdout] --> src/bin/ownership.rs:5:13 [INFO] [stdout] | [INFO] [stdout] 5 | let s = "hello"; // s is valid from this point forward [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_s` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `s1` [INFO] [stdout] --> src/bin/ownership.rs:50:17 [INFO] [stdout] | [INFO] [stdout] 50 | let s1 = gives_ownership(); // gives_ownership moves its return [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_s1` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `s3` [INFO] [stdout] --> src/bin/ownership.rs:55:17 [INFO] [stdout] | [INFO] [stdout] 55 | let s3 = takes_and_gives_back(s2); // s2 is moved into [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_s3` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `Alaska` [INFO] [stdout] --> src/bin/enum.rs:5:9 [INFO] [stdout] | [INFO] [stdout] 5 | Alaska, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] note: `UsState` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] --> src/bin/enum.rs:2:14 [INFO] [stdout] | [INFO] [stdout] 2 | #[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: variant is never constructed: `Penny` [INFO] [stdout] --> src/bin/enum.rs:8:9 [INFO] [stdout] | [INFO] [stdout] 8 | Penny, [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `Nickel` [INFO] [stdout] --> src/bin/enum.rs:9:9 [INFO] [stdout] | [INFO] [stdout] 9 | Nickel, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `Dime` [INFO] [stdout] --> src/bin/enum.rs:10:9 [INFO] [stdout] | [INFO] [stdout] 10 | Dime, [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `seasonal_fruit` [INFO] [stdout] --> src/bin/super_path.rs:14:9 [INFO] [stdout] | [INFO] [stdout] 14 | seasonal_fruit: String, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `f` [INFO] [stdout] --> src/bin/result.rs:9:9 [INFO] [stdout] | [INFO] [stdout] 9 | let f = match f { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_f` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/bin/result.rs:20:5 [INFO] [stdout] | [INFO] [stdout] 20 | read_username_from_file(); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `seat_at_table` [INFO] [stdout] --> src/bin/restrt_lib.rs:6:12 [INFO] [stdout] | [INFO] [stdout] 6 | fn seat_at_table() {} [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `take_order` [INFO] [stdout] --> src/bin/restrt_lib.rs:10:12 [INFO] [stdout] | [INFO] [stdout] 10 | fn take_order() {} [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `serve_order` [INFO] [stdout] --> src/bin/restrt_lib.rs:12:12 [INFO] [stdout] | [INFO] [stdout] 12 | fn serve_order() {} [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `take_payment` [INFO] [stdout] --> src/bin/restrt_lib.rs:14:12 [INFO] [stdout] | [INFO] [stdout] 14 | fn take_payment() {} [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 5 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 4m 11s [INFO] running `Command { std: "docker" "inspect" "2c8956a703996cff867fa122d2e8e2d2d0937e8e119f929176fab60da621eafa", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "2c8956a703996cff867fa122d2e8e2d2d0937e8e119f929176fab60da621eafa", kill_on_drop: false }` [INFO] [stdout] 2c8956a703996cff867fa122d2e8e2d2d0937e8e119f929176fab60da621eafa [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-19/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-19/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] c1334d0e792f2528551c81edd92e1c2b5f62ba25be767dd98996cb8d45d8e8b3 [INFO] running `Command { std: "docker" "start" "-a" "c1334d0e792f2528551c81edd92e1c2b5f62ba25be767dd98996cb8d45d8e8b3", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Compiling hello_rust v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused variable: `f` [INFO] [stdout] --> src/bin/result.rs:9:9 [INFO] [stdout] | [INFO] [stdout] 9 | let f = match f { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_f` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/bin/result.rs:20:5 [INFO] [stdout] | [INFO] [stdout] 20 | read_username_from_file(); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `s` [INFO] [stdout] --> src/bin/ownership.rs:5:13 [INFO] [stdout] | [INFO] [stdout] 5 | let s = "hello"; // s is valid from this point forward [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_s` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `s1` [INFO] [stdout] --> src/bin/ownership.rs:50:17 [INFO] [stdout] | [INFO] [stdout] 50 | let s1 = gives_ownership(); // gives_ownership moves its return [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_s1` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `s3` [INFO] [stdout] --> src/bin/ownership.rs:55:17 [INFO] [stdout] | [INFO] [stdout] 55 | let s3 = takes_and_gives_back(s2); // s2 is moved into [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_s3` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `state` [INFO] [stdout] --> src/bin/enum.rs:29:26 [INFO] [stdout] | [INFO] [stdout] 29 | if let Coin::Quarter(state) = some_value { [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_state` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `seasonal_fruit` [INFO] [stdout] --> src/bin/super_path.rs:14:9 [INFO] [stdout] | [INFO] [stdout] 14 | seasonal_fruit: String, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `seat_at_table` [INFO] [stdout] --> src/bin/restrt_lib.rs:6:12 [INFO] [stdout] | [INFO] [stdout] 6 | fn seat_at_table() {} [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `take_order` [INFO] [stdout] --> src/bin/restrt_lib.rs:10:12 [INFO] [stdout] | [INFO] [stdout] 10 | fn take_order() {} [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `serve_order` [INFO] [stdout] --> src/bin/restrt_lib.rs:12:12 [INFO] [stdout] | [INFO] [stdout] 12 | fn serve_order() {} [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `take_payment` [INFO] [stdout] --> src/bin/restrt_lib.rs:14:12 [INFO] [stdout] | [INFO] [stdout] 14 | fn take_payment() {} [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/bin/vector.rs:2:9 [INFO] [stdout] | [INFO] [stdout] 2 | let mut v = vec![1, 2, 3, 4, 5]; [INFO] [stdout] | ----^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 5.44s [INFO] [stderr] Executable unittests src/lib.rs (/opt/rustwide/target/debug/deps/hello_rust-a11c9efd9a319f7a) [INFO] [stderr] Executable unittests src/bin/control_flow.rs (/opt/rustwide/target/debug/deps/control_flow-2375b7e8e0d1d35e) [INFO] [stderr] Executable unittests src/bin/enum.rs (/opt/rustwide/target/debug/deps/enum-2eb8f14f810e29dd) [INFO] [stderr] Executable unittests src/bin/external_file.rs (/opt/rustwide/target/debug/deps/external_file-6aae6eefb2a18835) [INFO] [stderr] Executable unittests src/bin/ferris_hello.rs (/opt/rustwide/target/debug/deps/ferris_hello-51789fd53f2e35b5) [INFO] [stderr] Executable unittests src/bin/functions.rs (/opt/rustwide/target/debug/deps/functions-6619895e34425a85) [INFO] [stderr] Executable unittests src/bin/generics.rs (/opt/rustwide/target/debug/deps/generics-4a937a5d28b1ade8) [INFO] [stderr] Executable unittests src/bin/guessing_game.rs (/opt/rustwide/target/debug/deps/guessing_game-6c7260d7f0b423d8) [INFO] [stderr] Executable unittests src/bin/hash_map.rs (/opt/rustwide/target/debug/deps/hash_map-b6857772d44c50bd) [INFO] [stderr] Executable unittests src/main.rs (/opt/rustwide/target/debug/deps/hello_rust-087164ebc4430b4a) [INFO] [stderr] Executable unittests src/bin/lifetime.rs (/opt/rustwide/target/debug/deps/lifetime-e58edeb87d910672) [INFO] [stderr] Executable unittests src/bin/mutability.rs (/opt/rustwide/target/debug/deps/mutability-9406f22259d7c1ad) [INFO] [stderr] Executable unittests src/bin/ownership.rs (/opt/rustwide/target/debug/deps/ownership-a0ad38d71566514d) [INFO] [stderr] Executable unittests src/bin/panic.rs (/opt/rustwide/target/debug/deps/panic-12ce5b1a07a9790f) [INFO] [stderr] Executable unittests src/bin/ref_borrow.rs (/opt/rustwide/target/debug/deps/ref_borrow-11f907673bfe1615) [INFO] [stderr] Executable unittests src/bin/restrt_lib.rs (/opt/rustwide/target/debug/deps/restrt_lib-65305c810710a235) [INFO] [stderr] Executable unittests src/bin/result.rs (/opt/rustwide/target/debug/deps/result-0e3eb2625f16a054) [INFO] [stderr] Executable unittests src/bin/slice.rs (/opt/rustwide/target/debug/deps/slice-6827a5013c228f92) [INFO] [stderr] Executable unittests src/bin/str.rs (/opt/rustwide/target/debug/deps/str-9fdf1746632e1e92) [INFO] [stderr] Executable unittests src/bin/struct.rs (/opt/rustwide/target/debug/deps/struct-0a9f59c6219b2a7a) [INFO] [stderr] Executable unittests src/bin/super_path.rs (/opt/rustwide/target/debug/deps/super_path-e81835b23623217e) [INFO] [stderr] Executable unittests src/bin/trait.rs (/opt/rustwide/target/debug/deps/trait-8e572bc612cb7126) [INFO] [stderr] Executable unittests src/bin/trait2.rs (/opt/rustwide/target/debug/deps/trait2-17b70490decb786b) [INFO] [stderr] Executable unittests src/bin/trait3.rs (/opt/rustwide/target/debug/deps/trait3-2c7338bc8ec6edcf) [INFO] [stderr] Executable unittests src/bin/types.rs (/opt/rustwide/target/debug/deps/types-04c8333c505ebb97) [INFO] [stderr] Executable unittests src/bin/use.rs (/opt/rustwide/target/debug/deps/use-18a11cd3ce54484c) [INFO] [stderr] Executable unittests src/bin/vector.rs (/opt/rustwide/target/debug/deps/vector-287546b393323345) [INFO] running `Command { std: "docker" "inspect" "c1334d0e792f2528551c81edd92e1c2b5f62ba25be767dd98996cb8d45d8e8b3", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "c1334d0e792f2528551c81edd92e1c2b5f62ba25be767dd98996cb8d45d8e8b3", kill_on_drop: false }` [INFO] [stdout] c1334d0e792f2528551c81edd92e1c2b5f62ba25be767dd98996cb8d45d8e8b3 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-19/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-19/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] 579bf1ff5627af80ed24d6828c1a0cd88c7c85d19c2b9749ae94ab203e9e1f75 [INFO] running `Command { std: "docker" "start" "-a" "579bf1ff5627af80ed24d6828c1a0cd88c7c85d19c2b9749ae94ab203e9e1f75", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] warning: field is never read: `seasonal_fruit` [INFO] [stderr] --> src/bin/super_path.rs:14:9 [INFO] [stderr] | [INFO] [stderr] 14 | seasonal_fruit: String, [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `f` [INFO] [stderr] --> src/bin/result.rs:9:9 [INFO] [stderr] | [INFO] [stderr] 9 | let f = match f { [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_f` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused `Result` that must be used [INFO] [stderr] --> src/bin/result.rs:20:5 [INFO] [stderr] | [INFO] [stderr] 20 | read_username_from_file(); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_must_use)]` on by default [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: unused variable: `state` [INFO] [stderr] --> src/bin/enum.rs:29:26 [INFO] [stderr] | [INFO] [stderr] 29 | if let Coin::Quarter(state) = some_value { [INFO] [stderr] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_state` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: function is never used: `seat_at_table` [INFO] [stderr] --> src/bin/restrt_lib.rs:6:12 [INFO] [stderr] | [INFO] [stderr] 6 | fn seat_at_table() {} [INFO] [stderr] | ^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: function is never used: `take_order` [INFO] [stderr] --> src/bin/restrt_lib.rs:10:12 [INFO] [stderr] | [INFO] [stderr] 10 | fn take_order() {} [INFO] [stderr] | ^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `serve_order` [INFO] [stderr] --> src/bin/restrt_lib.rs:12:12 [INFO] [stderr] | [INFO] [stderr] 12 | fn serve_order() {} [INFO] [stderr] | ^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `take_payment` [INFO] [stderr] --> src/bin/restrt_lib.rs:14:12 [INFO] [stderr] | [INFO] [stderr] 14 | fn take_payment() {} [INFO] [stderr] | ^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: `hello_rust` (bin "super_path" test) generated 1 warning [INFO] [stderr] warning: `hello_rust` (bin "result" test) generated 2 warnings [INFO] [stderr] warning: `hello_rust` (bin "enum" test) generated 1 warning [INFO] [stderr] warning: `hello_rust` (bin "restrt_lib" test) generated 4 warnings [INFO] [stderr] warning: unused variable: `s` [INFO] [stderr] --> src/bin/ownership.rs:5:13 [INFO] [stderr] | [INFO] [stderr] 5 | let s = "hello"; // s is valid from this point forward [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_s` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `s1` [INFO] [stderr] --> src/bin/ownership.rs:50:17 [INFO] [stderr] | [INFO] [stderr] 50 | let s1 = gives_ownership(); // gives_ownership moves its return [INFO] [stderr] | ^^ help: if this is intentional, prefix it with an underscore: `_s1` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `s3` [INFO] [stderr] --> src/bin/ownership.rs:55:17 [INFO] [stderr] | [INFO] [stderr] 55 | let s3 = takes_and_gives_back(s2); // s2 is moved into [INFO] [stderr] | ^^ help: if this is intentional, prefix it with an underscore: `_s3` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/bin/vector.rs:2:9 [INFO] [stderr] | [INFO] [stderr] 2 | let mut v = vec![1, 2, 3, 4, 5]; [INFO] [stderr] | ----^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_mut)]` on by default [INFO] [stderr] [INFO] [stderr] warning: `hello_rust` (bin "ownership" test) generated 3 warnings [INFO] [stderr] warning: `hello_rust` (bin "vector" test) generated 1 warning [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.12s [INFO] [stderr] Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/hello_rust-a11c9efd9a319f7a) [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] [stderr] Running unittests src/bin/control_flow.rs (/opt/rustwide/target/debug/deps/control_flow-2375b7e8e0d1d35e) [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] [stderr] Running unittests src/bin/enum.rs (/opt/rustwide/target/debug/deps/enum-2eb8f14f810e29dd) [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 0.03s [INFO] [stdout] [INFO] [stderr] Running unittests src/bin/external_file.rs (/opt/rustwide/target/debug/deps/external_file-6aae6eefb2a18835) [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] [stdout] [INFO] [stderr] Running unittests src/bin/ferris_hello.rs (/opt/rustwide/target/debug/deps/ferris_hello-51789fd53f2e35b5) [INFO] [stdout] running 0 tests [INFO] [stderr] Running unittests src/bin/functions.rs (/opt/rustwide/target/debug/deps/functions-6619895e34425a85) [INFO] [stdout] [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.02s [INFO] [stdout] [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] [stderr] Running unittests src/bin/generics.rs (/opt/rustwide/target/debug/deps/generics-4a937a5d28b1ade8) [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] [stderr] Running unittests src/bin/guessing_game.rs (/opt/rustwide/target/debug/deps/guessing_game-6c7260d7f0b423d8) [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] [stderr] Running unittests src/bin/hash_map.rs (/opt/rustwide/target/debug/deps/hash_map-b6857772d44c50bd) [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] [stderr] Running unittests src/main.rs (/opt/rustwide/target/debug/deps/hello_rust-087164ebc4430b4a) [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] [stderr] Running unittests src/bin/lifetime.rs (/opt/rustwide/target/debug/deps/lifetime-e58edeb87d910672) [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] [stderr] Running unittests src/bin/mutability.rs (/opt/rustwide/target/debug/deps/mutability-9406f22259d7c1ad) [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] [stderr] Running unittests src/bin/ownership.rs (/opt/rustwide/target/debug/deps/ownership-a0ad38d71566514d) [INFO] [stderr] Running unittests src/bin/panic.rs (/opt/rustwide/target/debug/deps/panic-12ce5b1a07a9790f) [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] [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] [stderr] Running unittests src/bin/ref_borrow.rs (/opt/rustwide/target/debug/deps/ref_borrow-11f907673bfe1615) [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] [stderr] Running unittests src/bin/restrt_lib.rs (/opt/rustwide/target/debug/deps/restrt_lib-65305c810710a235) [INFO] [stdout] [INFO] [stderr] Running unittests src/bin/result.rs (/opt/rustwide/target/debug/deps/result-0e3eb2625f16a054) [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] [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 0.06s [INFO] [stdout] [INFO] [stderr] Running unittests src/bin/slice.rs (/opt/rustwide/target/debug/deps/slice-6827a5013c228f92) [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] [stderr] Running unittests src/bin/str.rs (/opt/rustwide/target/debug/deps/str-9fdf1746632e1e92) [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] [stderr] Running unittests src/bin/struct.rs (/opt/rustwide/target/debug/deps/struct-0a9f59c6219b2a7a) [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] [stderr] Running unittests src/bin/super_path.rs (/opt/rustwide/target/debug/deps/super_path-e81835b23623217e) [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] [stderr] Running unittests src/bin/trait.rs (/opt/rustwide/target/debug/deps/trait-8e572bc612cb7126) [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] [stderr] Running unittests src/bin/trait2.rs (/opt/rustwide/target/debug/deps/trait2-17b70490decb786b) [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] [stderr] Running unittests src/bin/trait3.rs (/opt/rustwide/target/debug/deps/trait3-2c7338bc8ec6edcf) [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 0.01s [INFO] [stdout] [INFO] [stderr] Running unittests src/bin/types.rs (/opt/rustwide/target/debug/deps/types-04c8333c505ebb97) [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] [stderr] Running unittests src/bin/use.rs (/opt/rustwide/target/debug/deps/use-18a11cd3ce54484c) [INFO] [stdout] [INFO] [stdout] running 0 tests [INFO] [stdout] [INFO] [stderr] Running unittests src/bin/vector.rs (/opt/rustwide/target/debug/deps/vector-287546b393323345) [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.02s [INFO] [stderr] Doc-tests hello_rust [INFO] [stdout] [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] [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" "579bf1ff5627af80ed24d6828c1a0cd88c7c85d19c2b9749ae94ab203e9e1f75", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "579bf1ff5627af80ed24d6828c1a0cd88c7c85d19c2b9749ae94ab203e9e1f75", kill_on_drop: false }` [INFO] [stdout] 579bf1ff5627af80ed24d6828c1a0cd88c7c85d19c2b9749ae94ab203e9e1f75