[INFO] cloning repository https://github.com/Nov11/rust-pl [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Nov11/rust-pl" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNov11%2Frust-pl", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNov11%2Frust-pl'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 0a7cf494b601889c42daf4e23e78245e01117607 [INFO] testing Nov11/rust-pl 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%2FNov11%2Frust-pl" "/workspace/builds/worker-1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/Nov11/rust-pl 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/Nov11/rust-pl [INFO] finished tweaking git repo https://github.com/Nov11/rust-pl [INFO] tweaked toml for git repo https://github.com/Nov11/rust-pl written to /workspace/builds/worker-1/source/Cargo.toml [INFO] crate git repo https://github.com/Nov11/rust-pl 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-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", 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] a9cb04a2b6fe351a6cfe6f65cf216134203682ba08e1bd33277a6cddf04014ac [INFO] running `Command { std: "docker" "start" "-a" "a9cb04a2b6fe351a6cfe6f65cf216134203682ba08e1bd33277a6cddf04014ac", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "a9cb04a2b6fe351a6cfe6f65cf216134203682ba08e1bd33277a6cddf04014ac", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a9cb04a2b6fe351a6cfe6f65cf216134203682ba08e1bd33277a6cddf04014ac", kill_on_drop: false }` [INFO] [stdout] a9cb04a2b6fe351a6cfe6f65cf216134203682ba08e1bd33277a6cddf04014ac [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "+beta-2022-04-10" "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] f60edc0d82e4000ee48832c32c938d1be072b6709f488f9b1c435292cbf58910 [INFO] running `Command { std: "docker" "start" "-a" "f60edc0d82e4000ee48832c32c938d1be072b6709f488f9b1c435292cbf58910", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.65 [INFO] [stderr] Compiling autocfg v0.1.7 [INFO] [stderr] Compiling rustc-serialize v0.3.24 [INFO] [stderr] Compiling traitobject v0.1.0 [INFO] [stderr] Compiling log v0.4.8 [INFO] [stderr] Compiling typeable v0.1.2 [INFO] [stderr] Compiling safemem v0.3.3 [INFO] [stderr] Compiling modifier v0.1.0 [INFO] [stderr] Compiling lazy_static v0.2.11 [INFO] [stderr] Compiling rayon-core v1.6.0 [INFO] [stderr] Compiling dtoa v0.2.2 [INFO] [stderr] Compiling either v1.5.3 [INFO] [stderr] Compiling serde v0.8.23 [INFO] [stderr] Compiling itoa v0.1.1 [INFO] [stderr] Compiling adler32 v1.0.4 [INFO] [stderr] Compiling bitflags v0.7.0 [INFO] [stderr] Compiling color_quant v1.0.1 [INFO] [stderr] Compiling lzw v0.10.0 [INFO] [stderr] Compiling inflate v0.2.0 [INFO] [stderr] Compiling scoped_threadpool v0.1.9 [INFO] [stderr] Compiling route-recognizer v0.1.13 [INFO] [stderr] Compiling ch20 v0.1.0 (/opt/rustwide/workdir/ch20) [INFO] [stderr] Compiling minigrep v0.1.0 (/opt/rustwide/workdir/minigrep) [INFO] [stderr] Compiling state-pattern v0.1.0 (/opt/rustwide/workdir/state-pattern) [INFO] [stderr] Compiling crossbeam v0.2.12 [INFO] [stderr] Compiling ch19 v0.1.0 (/opt/rustwide/workdir/ch19) [INFO] [stdout] warning: unused variable: `post` [INFO] [stdout] --> state-pattern/src/lib.rs:38:27 [INFO] [stdout] | [INFO] [stdout] 38 | fn content<'a>(&self, post: &'a Post) -> &'a str { [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_post` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling ref-scope v0.1.0 (/opt/rustwide/workdir/ref-scope) [INFO] [stderr] Compiling add_two v0.1.0 (/opt/rustwide/workdir/add_two) [INFO] [stdout] warning: unused variable: `rhs` [INFO] [stdout] --> ch19/src/main.rs:18:18 [INFO] [stdout] | [INFO] [stdout] 18 | fn add(self, rhs: Self) -> Self::Output { [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_rhs` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `return_fn` [INFO] [stdout] --> ch19/src/main.rs:23:4 [INFO] [stdout] | [INFO] [stdout] 23 | fn return_fn() -> Box i32>{ [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling modules v0.1.0 (/opt/rustwide/workdir/modules) [INFO] [stderr] Compiling box-usage v0.1.0 (/opt/rustwide/workdir/box-usage) [INFO] [stderr] Compiling closures v0.1.0 (/opt/rustwide/workdir/closures) [INFO] [stderr] Compiling cmd v0.1.0 (/opt/rustwide/workdir/cmd) [INFO] [stdout] warning: unused variable: `v2` [INFO] [stdout] --> closures/src/main.rs:6:9 [INFO] [stdout] | [INFO] [stdout] 6 | let v2 = vec; [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_v2` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `plus_magic` [INFO] [stdout] --> closures/src/main.rs:19:9 [INFO] [stdout] | [INFO] [stdout] 19 | let plus_magic = |x: i32| x + magic_num; [INFO] [stdout] | ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_plus_magic` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `more_magic` [INFO] [stdout] --> closures/src/main.rs:20:9 [INFO] [stdout] | [INFO] [stdout] 20 | let more_magic = &mut magic_num; // Err! [INFO] [stdout] | ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_more_magic` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> closures/src/main.rs:4:9 [INFO] [stdout] | [INFO] [stdout] 4 | let mut vec = vec![1, 2, 3]; [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: field is never read: `number` [INFO] [stdout] --> closures/src/main.rs:13:5 [INFO] [stdout] | [INFO] [stdout] 13 | number: i32, [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] note: `Label` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis [INFO] [stdout] --> closures/src/main.rs:11:16 [INFO] [stdout] | [INFO] [stdout] 11 | #[derive(Copy, Clone)] [INFO] [stdout] | ^^^^^ [INFO] [stdout] = note: this warning originates in the derive macro `Clone` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `default_ref` [INFO] [stdout] --> closures/src/main.rs:16:4 [INFO] [stdout] | [INFO] [stdout] 16 | fn default_ref() { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `default_move` [INFO] [stdout] --> closures/src/main.rs:24:4 [INFO] [stdout] | [INFO] [stdout] 24 | fn default_move() { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: path statement drops value [INFO] [stdout] --> closures/src/main.rs:27:9 [INFO] [stdout] | [INFO] [stdout] 27 | numbers; [INFO] [stdout] | ^^^^^^^^ help: use `drop` to clarify the intent: `drop(numbers);` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(path_statements)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling unicase v1.4.2 [INFO] [stderr] Compiling crossbeam-utils v0.6.6 [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling unsafe-any v0.4.2 [INFO] [stderr] Compiling error v0.1.9 [INFO] [stdout] warning: unused variable: `list` [INFO] [stdout] --> box-usage/src/main.rs:7:9 [INFO] [stdout] | [INFO] [stdout] 7 | let list = List::Cons(1, Box::new(List::Nil)); [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_list` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling gif v0.9.2 [INFO] [stdout] warning: 8 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling num-traits v0.2.8 [INFO] [stderr] Compiling num-integer v0.1.41 [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling num-iter v0.1.39 [INFO] [stderr] Compiling typemap v0.3.3 [INFO] [stderr] Compiling base64 v0.9.3 [INFO] [stderr] Compiling deflate v0.7.20 [INFO] [stderr] Compiling memoffset v0.5.1 [INFO] [stderr] Compiling url v1.7.2 [INFO] [stderr] Compiling crossbeam-queue v0.1.2 [INFO] [stderr] Compiling plugin v0.2.6 [INFO] [stderr] Compiling log v0.3.9 [INFO] [stderr] Compiling mime v0.2.6 [INFO] [stderr] Compiling num_cpus v1.10.1 [INFO] [stderr] Compiling rand v0.4.6 [INFO] [stderr] Compiling time v0.1.42 [INFO] [stderr] Compiling rand v0.5.6 [INFO] [stderr] Compiling crossbeam-epoch v0.7.2 [INFO] [stderr] Compiling hyper v0.10.16 [INFO] [stderr] Compiling crossbeam-deque v0.7.1 [INFO] [stderr] Compiling conduit-mime-types v0.7.3 [INFO] [stderr] Compiling rand v0.3.23 [INFO] [stderr] Compiling rust-programming-language v0.1.0 (/opt/rustwide/workdir/ch01) [INFO] [stderr] Compiling add_one v0.1.0 (/opt/rustwide/workdir/add_one) [INFO] [stderr] Compiling num-traits v0.1.43 [INFO] [stderr] Compiling num-complex v0.1.43 [INFO] [stderr] Compiling rayon v1.2.0 [INFO] [stderr] Compiling serde_json v0.8.6 [INFO] [stderr] Compiling enum_primitive v0.1.1 [INFO] [stderr] Compiling adder v0.1.0 (/opt/rustwide/workdir/adder) [INFO] [stderr] Compiling guess-game v0.1.0 (/opt/rustwide/workdir/guess-game) [INFO] [stderr] Compiling num-bigint v0.1.44 [INFO] [stderr] Compiling png v0.7.0 [INFO] [stderr] Compiling iron v0.5.1 [INFO] [stderr] Compiling num-rational v0.1.42 [INFO] [stderr] Compiling persistent v0.3.0 [INFO] [stderr] Compiling router v0.5.1 [INFO] [stderr] Compiling bodyparser v0.5.0 [INFO] [stderr] Compiling urlencoded v0.5.0 [INFO] [stderr] Compiling num v0.1.42 [INFO] [stderr] Compiling jpeg-decoder v0.1.16 [INFO] [stderr] Compiling simple-web-server v0.1.0 (/opt/rustwide/workdir/simple-web-server) [INFO] [stderr] Compiling image v0.13.0 [INFO] [stderr] Compiling concurrency v0.1.0 (/opt/rustwide/workdir/concurrency) [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 1m 19s [INFO] running `Command { std: "docker" "inspect" "f60edc0d82e4000ee48832c32c938d1be072b6709f488f9b1c435292cbf58910", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "f60edc0d82e4000ee48832c32c938d1be072b6709f488f9b1c435292cbf58910", kill_on_drop: false }` [INFO] [stdout] f60edc0d82e4000ee48832c32c938d1be072b6709f488f9b1c435292cbf58910 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "+beta-2022-04-10" "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] 5ea9678aae2ccfe43b99ee7b8a92364ddd6d9f4834a799d566035c4e75043ece [INFO] running `Command { std: "docker" "start" "-a" "5ea9678aae2ccfe43b99ee7b8a92364ddd6d9f4834a799d566035c4e75043ece", kill_on_drop: false }` [INFO] [stdout] warning: unused variable: `post` [INFO] [stdout] --> state-pattern/src/lib.rs:38:27 [INFO] [stdout] | [INFO] [stdout] 38 | fn content<'a>(&self, post: &'a Post) -> &'a str { [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_post` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling modules v0.1.0 (/opt/rustwide/workdir/modules) [INFO] [stderr] Compiling closures v0.1.0 (/opt/rustwide/workdir/closures) [INFO] [stderr] Compiling state-pattern v0.1.0 (/opt/rustwide/workdir/state-pattern) [INFO] [stderr] Compiling ch20 v0.1.0 (/opt/rustwide/workdir/ch20) [INFO] [stderr] Compiling ref-scope v0.1.0 (/opt/rustwide/workdir/ref-scope) [INFO] [stderr] Compiling ch19 v0.1.0 (/opt/rustwide/workdir/ch19) [INFO] [stderr] Compiling minigrep v0.1.0 (/opt/rustwide/workdir/minigrep) [INFO] [stderr] Compiling cmd v0.1.0 (/opt/rustwide/workdir/cmd) [INFO] [stderr] Compiling box-usage v0.1.0 (/opt/rustwide/workdir/box-usage) [INFO] [stderr] Compiling add_two v0.1.0 (/opt/rustwide/workdir/add_two) [INFO] [stderr] Compiling add_one v0.1.0 (/opt/rustwide/workdir/add_one) [INFO] [stderr] Compiling guess-game v0.1.0 (/opt/rustwide/workdir/guess-game) [INFO] [stderr] Compiling rust-programming-language v0.1.0 (/opt/rustwide/workdir/ch01) [INFO] [stdout] warning: unused variable: `list` [INFO] [stdout] --> box-usage/src/main.rs:7:9 [INFO] [stdout] | [INFO] [stdout] 7 | let list = List::Cons(1, Box::new(List::Nil)); [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_list` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `v2` [INFO] [stdout] --> closures/src/main.rs:6:9 [INFO] [stdout] | [INFO] [stdout] 6 | let v2 = vec; [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_v2` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `plus_magic` [INFO] [stdout] --> closures/src/main.rs:19:9 [INFO] [stdout] | [INFO] [stdout] 19 | let plus_magic = |x: i32| x + magic_num; [INFO] [stdout] | ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_plus_magic` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `more_magic` [INFO] [stdout] --> closures/src/main.rs:20:9 [INFO] [stdout] | [INFO] [stdout] 20 | let more_magic = &mut magic_num; // Err! [INFO] [stdout] | ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_more_magic` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> closures/src/main.rs:4:9 [INFO] [stdout] | [INFO] [stdout] 4 | let mut vec = vec![1, 2, 3]; [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: field is never read: `number` [INFO] [stdout] --> closures/src/main.rs:13:5 [INFO] [stdout] | [INFO] [stdout] 13 | number: i32, [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] note: `Label` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis [INFO] [stdout] --> closures/src/main.rs:11:16 [INFO] [stdout] | [INFO] [stdout] 11 | #[derive(Copy, Clone)] [INFO] [stdout] | ^^^^^ [INFO] [stdout] = note: this warning originates in the derive macro `Clone` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `default_ref` [INFO] [stdout] --> closures/src/main.rs:16:4 [INFO] [stdout] | [INFO] [stdout] 16 | fn default_ref() { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `default_move` [INFO] [stdout] --> closures/src/main.rs:24:4 [INFO] [stdout] | [INFO] [stdout] 24 | fn default_move() { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: path statement drops value [INFO] [stdout] --> closures/src/main.rs:27:9 [INFO] [stdout] | [INFO] [stdout] 27 | numbers; [INFO] [stdout] | ^^^^^^^^ help: use `drop` to clarify the intent: `drop(numbers);` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(path_statements)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `post` [INFO] [stdout] --> state-pattern/src/lib.rs:38:27 [INFO] [stdout] | [INFO] [stdout] 38 | fn content<'a>(&self, post: &'a Post) -> &'a str { [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_post` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `rhs` [INFO] [stdout] --> ch19/src/main.rs:18:18 [INFO] [stdout] | [INFO] [stdout] 18 | fn add(self, rhs: Self) -> Self::Output { [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_rhs` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `return_fn` [INFO] [stdout] --> ch19/src/main.rs:23:4 [INFO] [stdout] | [INFO] [stdout] 23 | fn return_fn() -> Box i32>{ [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling adder v0.1.0 (/opt/rustwide/workdir/adder) [INFO] [stdout] warning: 8 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling simple-web-server v0.1.0 (/opt/rustwide/workdir/simple-web-server) [INFO] [stderr] Compiling concurrency v0.1.0 (/opt/rustwide/workdir/concurrency) [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 9.76s [INFO] [stderr] Executable unittests src/lib.rs (/opt/rustwide/target/debug/deps/add_one-d32ba3ba61f3fcbc) [INFO] [stderr] Executable unittests src/lib.rs (/opt/rustwide/target/debug/deps/add_two-89d410be9ba39938) [INFO] [stderr] Executable unittests src/main.rs (/opt/rustwide/target/debug/deps/adder-ce962820800f9ca7) [INFO] [stderr] Executable unittests src/main.rs (/opt/rustwide/target/debug/deps/box_usage-6c9a084cc0569463) [INFO] [stderr] Executable unittests src/main.rs (/opt/rustwide/target/debug/deps/ch19-5a9bd2d7bae97bb5) [INFO] [stderr] Executable unittests src/lib.rs (/opt/rustwide/target/debug/deps/ch20-5f1721f34e15e33f) [INFO] [stderr] Executable unittests src/bin/main.rs (/opt/rustwide/target/debug/deps/main-13166229952a9367) [INFO] [stderr] Executable unittests src/main.rs (/opt/rustwide/target/debug/deps/closures-6e105244063627d1) [INFO] [stderr] Executable unittests src/main.rs (/opt/rustwide/target/debug/deps/cmd-2c22dee3473cc8f9) [INFO] [stderr] Executable unittests src/main.rs (/opt/rustwide/target/debug/deps/concurrency-e88460a8a731b346) [INFO] [stderr] Executable unittests src/main.rs (/opt/rustwide/target/debug/deps/guess_game-adc6426dc11bcabe) [INFO] [stderr] Executable unittests src/lib.rs (/opt/rustwide/target/debug/deps/minigrep-8628b50a8241d538) [INFO] [stderr] Executable unittests src/main.rs (/opt/rustwide/target/debug/deps/minigrep-ccd698a8d3271240) [INFO] [stderr] Executable unittests src/main.rs (/opt/rustwide/target/debug/deps/modules-de73979ba6a72a2c) [INFO] [stderr] Executable unittests src/main.rs (/opt/rustwide/target/debug/deps/ref_scope-5a118aa837595f7b) [INFO] [stderr] Executable unittests src/main.rs (/opt/rustwide/target/debug/deps/rust_programming_language-c87d2a6fedf07163) [INFO] [stderr] Executable unittests src/main.rs (/opt/rustwide/target/debug/deps/simple_web_server-71664f367f6a7cdf) [INFO] [stderr] Executable unittests src/lib.rs (/opt/rustwide/target/debug/deps/state_pattern-6fa881e53346e1da) [INFO] [stderr] Executable unittests src/main.rs (/opt/rustwide/target/debug/deps/state_pattern-5207670c421c74e7) [INFO] running `Command { std: "docker" "inspect" "5ea9678aae2ccfe43b99ee7b8a92364ddd6d9f4834a799d566035c4e75043ece", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "5ea9678aae2ccfe43b99ee7b8a92364ddd6d9f4834a799d566035c4e75043ece", kill_on_drop: false }` [INFO] [stdout] 5ea9678aae2ccfe43b99ee7b8a92364ddd6d9f4834a799d566035c4e75043ece [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "+beta-2022-04-10" "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] 054a152b1c41f30c68c844308f95fc629bda9dc92a1d95045c58958b924919c4 [INFO] running `Command { std: "docker" "start" "-a" "054a152b1c41f30c68c844308f95fc629bda9dc92a1d95045c58958b924919c4", kill_on_drop: false }` [INFO] [stderr] warning: unused variable: `post` [INFO] [stderr] --> state-pattern/src/lib.rs:38:27 [INFO] [stderr] | [INFO] [stderr] 38 | fn content<'a>(&self, post: &'a Post) -> &'a str { [INFO] [stderr] | ^^^^ help: if this is intentional, prefix it with an underscore: `_post` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `rhs` [INFO] [stderr] --> ch19/src/main.rs:18:18 [INFO] [stderr] | [INFO] [stderr] 18 | fn add(self, rhs: Self) -> Self::Output { [INFO] [stderr] | ^^^ help: if this is intentional, prefix it with an underscore: `_rhs` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: function is never used: `return_fn` [INFO] [stderr] --> ch19/src/main.rs:23:4 [INFO] [stderr] | [INFO] [stderr] 23 | fn return_fn() -> Box i32>{ [INFO] [stderr] | ^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `list` [INFO] [stderr] --> box-usage/src/main.rs:7:9 [INFO] [stderr] | [INFO] [stderr] 7 | let list = List::Cons(1, Box::new(List::Nil)); [INFO] [stderr] | ^^^^ help: if this is intentional, prefix it with an underscore: `_list` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: `state-pattern` (lib) generated 1 warning [INFO] [stderr] warning: `ch19` (bin "ch19" test) generated 2 warnings [INFO] [stderr] warning: `box-usage` (bin "box-usage" test) generated 1 warning [INFO] [stderr] warning: `state-pattern` (lib test) generated 1 warning (1 duplicate) [INFO] [stderr] warning: unused variable: `v2` [INFO] [stderr] --> closures/src/main.rs:6:9 [INFO] [stderr] | [INFO] [stderr] 6 | let v2 = vec; [INFO] [stderr] | ^^ help: if this is intentional, prefix it with an underscore: `_v2` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `plus_magic` [INFO] [stderr] --> closures/src/main.rs:19:9 [INFO] [stderr] | [INFO] [stderr] 19 | let plus_magic = |x: i32| x + magic_num; [INFO] [stderr] | ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_plus_magic` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `more_magic` [INFO] [stderr] --> closures/src/main.rs:20:9 [INFO] [stderr] | [INFO] [stderr] 20 | let more_magic = &mut magic_num; // Err! [INFO] [stderr] | ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_more_magic` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> closures/src/main.rs:4:9 [INFO] [stderr] | [INFO] [stderr] 4 | let mut vec = vec![1, 2, 3]; [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: field is never read: `number` [INFO] [stderr] --> closures/src/main.rs:13:5 [INFO] [stderr] | [INFO] [stderr] 13 | number: i32, [INFO] [stderr] | ^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] note: `Label` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis [INFO] [stderr] --> closures/src/main.rs:11:16 [INFO] [stderr] | [INFO] [stderr] 11 | #[derive(Copy, Clone)] [INFO] [stderr] | ^^^^^ [INFO] [stderr] = note: this warning originates in the derive macro `Clone` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] warning: function is never used: `default_ref` [INFO] [stderr] --> closures/src/main.rs:16:4 [INFO] [stderr] | [INFO] [stderr] 16 | fn default_ref() { [INFO] [stderr] | ^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `default_move` [INFO] [stderr] --> closures/src/main.rs:24:4 [INFO] [stderr] | [INFO] [stderr] 24 | fn default_move() { [INFO] [stderr] | ^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: path statement drops value [INFO] [stderr] --> closures/src/main.rs:27:9 [INFO] [stderr] | [INFO] [stderr] 27 | numbers; [INFO] [stderr] | ^^^^^^^^ help: use `drop` to clarify the intent: `drop(numbers);` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(path_statements)]` on by default [INFO] [stderr] [INFO] [stderr] warning: `closures` (bin "closures" test) generated 8 warnings [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.20s [INFO] [stdout] [INFO] [stderr] Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/add_one-d32ba3ba61f3fcbc) [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] Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/add_two-89d410be9ba39938) [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] Running unittests src/main.rs (/opt/rustwide/target/debug/deps/adder-ce962820800f9ca7) [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/box_usage-6c9a084cc0569463) [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/ch19-5a9bd2d7bae97bb5) [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/lib.rs (/opt/rustwide/target/debug/deps/ch20-5f1721f34e15e33f) [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/main.rs (/opt/rustwide/target/debug/deps/main-13166229952a9367) [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/closures-6e105244063627d1) [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/cmd-2c22dee3473cc8f9) [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/concurrency-e88460a8a731b346) [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/guess_game-adc6426dc11bcabe) [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/lib.rs (/opt/rustwide/target/debug/deps/minigrep-8628b50a8241d538) [INFO] [stdout] [INFO] [stdout] running 2 tests [INFO] [stderr] Running unittests src/main.rs (/opt/rustwide/target/debug/deps/minigrep-ccd698a8d3271240) [INFO] [stdout] test tests::case_insensitive ... ok [INFO] [stdout] test tests::one_result ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s [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/main.rs (/opt/rustwide/target/debug/deps/modules-de73979ba6a72a2c) [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/ref_scope-5a118aa837595f7b) [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/rust_programming_language-c87d2a6fedf07163) [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/simple_web_server-71664f367f6a7cdf) [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/lib.rs (/opt/rustwide/target/debug/deps/state_pattern-6fa881e53346e1da) [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/main.rs (/opt/rustwide/target/debug/deps/state_pattern-5207670c421c74e7) [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] Doc-tests add_one [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] Doc-tests add_two [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] Doc-tests ch20 [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] Doc-tests minigrep [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] Doc-tests state-pattern [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" "054a152b1c41f30c68c844308f95fc629bda9dc92a1d95045c58958b924919c4", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "054a152b1c41f30c68c844308f95fc629bda9dc92a1d95045c58958b924919c4", kill_on_drop: false }` [INFO] [stdout] 054a152b1c41f30c68c844308f95fc629bda9dc92a1d95045c58958b924919c4