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[INFO] validating manifest of git repo https://github.com/amoghyermalkar123/rust-basics on toolchain ab869e094a907cc5d19b4080f22eccaf347f1f95 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/amoghyermalkar123/rust-basics [INFO] finished tweaking git repo https://github.com/amoghyermalkar123/rust-basics [INFO] tweaked toml for git repo https://github.com/amoghyermalkar123/rust-basics written to /workspace/builds/worker-5-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/amoghyermalkar123/rust-basics already has a lockfile, it will not be regenerated [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 19552d678880fe52f2d236040cc4c6ca46c389b0e13e4c704515bd721adb83c5 [INFO] running `Command { std: "docker" "start" "-a" "19552d678880fe52f2d236040cc4c6ca46c389b0e13e4c704515bd721adb83c5", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "19552d678880fe52f2d236040cc4c6ca46c389b0e13e4c704515bd721adb83c5", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "19552d678880fe52f2d236040cc4c6ca46c389b0e13e4c704515bd721adb83c5", kill_on_drop: false }` [INFO] [stdout] 19552d678880fe52f2d236040cc4c6ca46c389b0e13e4c704515bd721adb83c5 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 2bde6d8cc924e39a0be2b7601efb3217f733d1f8c7552033e3b2422e14dcb919 [INFO] running `Command { std: "docker" "start" "-a" "2bde6d8cc924e39a0be2b7601efb3217f733d1f8c7552033e3b2422e14dcb919", kill_on_drop: false }` [INFO] [stderr] Checking ownership v0.1.0 (/opt/rustwide/workdir/ownership) [INFO] [stderr] Checking about_match v0.1.0 (/opt/rustwide/workdir/about_match) [INFO] [stderr] Checking basics v0.1.0 (/opt/rustwide/workdir/basics) [INFO] [stderr] Checking generics v0.1.0 (/opt/rustwide/workdir/generics) [INFO] [stderr] Checking structs v0.1.0 (/opt/rustwide/workdir/structs) [INFO] [stderr] Checking traits v0.1.0 (/opt/rustwide/workdir/traits) [INFO] [stderr] Checking error_handling v0.1.0 (/opt/rustwide/workdir/error_handling) [INFO] [stderr] Checking enums v0.1.0 (/opt/rustwide/workdir/enums) [INFO] [stderr] Checking collections v0.1.0 (/opt/rustwide/workdir/collections) [INFO] [stdout] warning: unused variable: `data` [INFO] [stdout] --> generics/src/lib.rs:5:32 [INFO] [stdout] | [INFO] [stdout] 5 | pub fn err_generic_function(data: &mut T) /*-> T*/ { [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_data` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `y` is never read [INFO] [stdout] --> generics/src/lib.rs:37:5 [INFO] [stdout] | [INFO] [stdout] 35 | struct Point { [INFO] [stdout] | ----- field in this struct [INFO] [stdout] 36 | x: T, [INFO] [stdout] 37 | y: T, [INFO] [stdout] | ^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `y` is never used [INFO] [stdout] --> generics/src/lib.rs:53:8 [INFO] [stdout] | [INFO] [stdout] 47 | impl Point { [INFO] [stdout] | ---------------- method in this implementation [INFO] [stdout] ... [INFO] [stdout] 53 | fn y(&self) -> &T { [INFO] [stdout] | ^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `x` and `y` are never read [INFO] [stdout] --> generics/src/lib.rs:67:5 [INFO] [stdout] | [INFO] [stdout] 66 | struct PointTwo { [INFO] [stdout] | -------- fields in this struct [INFO] [stdout] 67 | x: T, [INFO] [stdout] | ^ [INFO] [stdout] 68 | y: U, [INFO] [stdout] | ^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `mixup` is never used [INFO] [stdout] --> generics/src/lib.rs:72:8 [INFO] [stdout] | [INFO] [stdout] 71 | impl PointTwo { [INFO] [stdout] | ------------------------- method in this implementation [INFO] [stdout] 72 | fn mixup(self, other: PointTwo) -> PointTwo { [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 5 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `SomeData` is never constructed [INFO] [stdout] --> traits/src/trait_bound.rs:77:8 [INFO] [stdout] | [INFO] [stdout] 77 | struct SomeData { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function `new` is never used [INFO] [stdout] --> traits/src/trait_bound.rs:83:8 [INFO] [stdout] | [INFO] [stdout] 82 | impl SomeData { [INFO] [stdout] | ------------------- associated function in this implementation [INFO] [stdout] 83 | fn new(x:T, y:T) -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `print_things` is never used [INFO] [stdout] --> traits/src/trait_bound.rs:89:8 [INFO] [stdout] | [INFO] [stdout] 88 | impl SomeData { [INFO] [stdout] | ----------------------------------------- method in this implementation [INFO] [stdout] 89 | fn print_things(&self){ [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `f` [INFO] [stdout] --> error_handling/src/lib.rs:6:9 [INFO] [stdout] | [INFO] [stdout] 6 | 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: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `int64` [INFO] [stdout] --> enums/src/lib.rs:28:9 [INFO] [stdout] | [INFO] [stdout] 28 | let int64 = RustTypes::IntVariants; [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_int64` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `loopback` [INFO] [stdout] --> enums/src/lib.rs:32:9 [INFO] [stdout] | [INFO] [stdout] 32 | let loopback = IpAddr::V6(String::from("::1")); [INFO] [stdout] | ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_loopback` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `loopback2` [INFO] [stdout] --> enums/src/lib.rs:36:9 [INFO] [stdout] | [INFO] [stdout] 36 | let loopback2 = IpAddr2::V6(String::from("::1")); [INFO] [stdout] | ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_loopback2` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `addr` [INFO] [stdout] --> enums/src/lib.rs:38:9 [INFO] [stdout] | [INFO] [stdout] 38 | let addr = IPs { [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_addr` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `x` [INFO] [stdout] --> basics/src/data_types.rs:34:10 [INFO] [stdout] | [INFO] [stdout] 34 | let (x, y, z) = tup; [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_x` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `z` [INFO] [stdout] --> basics/src/data_types.rs:34:16 [INFO] [stdout] | [INFO] [stdout] 34 | let (x, y, z) = tup; [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_z` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `stats_and_exprs` is never used [INFO] [stdout] --> basics/src/functions.rs:1:8 [INFO] [stdout] | [INFO] [stdout] 1 | pub fn stats_and_exprs() { [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `compound_types` is never used [INFO] [stdout] --> basics/src/data_types.rs:23:8 [INFO] [stdout] | [INFO] [stdout] 23 | pub fn compound_types() { [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variants `Int`, `String`, `SmallStr`, `Boolean`, and `Generic` are never constructed [INFO] [stdout] --> enums/src/lib.rs:4:5 [INFO] [stdout] | [INFO] [stdout] 3 | enum RustTypes { [INFO] [stdout] | --------- variants in this enum [INFO] [stdout] 4 | Int, [INFO] [stdout] | ^^^ [INFO] [stdout] 5 | String, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] 6 | SmallStr, [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] 7 | Boolean, [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] 8 | Generic, [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `0`, `1`, `2`, and `3` are never read [INFO] [stdout] --> enums/src/lib.rs:18:8 [INFO] [stdout] | [INFO] [stdout] 18 | V4(u8, u8, u8, u8), [INFO] [stdout] | -- ^^ ^^ ^^ ^^ [INFO] [stdout] | | [INFO] [stdout] | fields in this variant [INFO] [stdout] | [INFO] [stdout] help: consider changing the fields to be of unit type to suppress this warning while preserving the field numbering, or remove the fields [INFO] [stdout] | [INFO] [stdout] 18 | V4((), (), (), ()), [INFO] [stdout] | ~~ ~~ ~~ ~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> enums/src/lib.rs:19:8 [INFO] [stdout] | [INFO] [stdout] 19 | V6(String), [INFO] [stdout] | -- ^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this variant [INFO] [stdout] | [INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field [INFO] [stdout] | [INFO] [stdout] 19 | V6(()), [INFO] [stdout] | ~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `address` and `address_two` are never read [INFO] [stdout] --> enums/src/lib.rs:23:5 [INFO] [stdout] | [INFO] [stdout] 22 | struct IPs { [INFO] [stdout] | --- fields in this struct [INFO] [stdout] 23 | address: IpAddr, [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] 24 | address_two : IpAddr2, [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `s1` [INFO] [stdout] --> ownership/src/ownership_basics.rs:101:9 [INFO] [stdout] | [INFO] [stdout] 101 | 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] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `s3` [INFO] [stdout] --> ownership/src/ownership_basics.rs:106:9 [INFO] [stdout] | [INFO] [stdout] 106 | 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: function `invalidation` is never used [INFO] [stdout] --> ownership/src/ownership_basics.rs:23:8 [INFO] [stdout] | [INFO] [stdout] 23 | pub fn invalidation() { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `copying` is never used [INFO] [stdout] --> ownership/src/ownership_basics.rs:47:8 [INFO] [stdout] | [INFO] [stdout] 47 | pub fn copying() { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `ownership` is never used [INFO] [stdout] --> ownership/src/ownership_basics.rs:83:8 [INFO] [stdout] | [INFO] [stdout] 83 | pub fn ownership() { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `takes_ownership` is never used [INFO] [stdout] --> ownership/src/ownership_basics.rs:92:8 [INFO] [stdout] | [INFO] [stdout] 92 | pub fn takes_ownership(some_string: String) { [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `makes_copy` is never used [INFO] [stdout] --> ownership/src/ownership_basics.rs:96:8 [INFO] [stdout] | [INFO] [stdout] 96 | pub fn makes_copy(number: u8) { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `give_and_take_main` is never used [INFO] [stdout] --> ownership/src/ownership_basics.rs:100:4 [INFO] [stdout] | [INFO] [stdout] 100 | fn give_and_take_main() { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `gives_ownership` is never used [INFO] [stdout] --> ownership/src/ownership_basics.rs:112:4 [INFO] [stdout] | [INFO] [stdout] 112 | fn gives_ownership() -> String { [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `takes_and_gives_back` is never used [INFO] [stdout] --> ownership/src/ownership_basics.rs:125:4 [INFO] [stdout] | [INFO] [stdout] 125 | fn takes_and_gives_back(a_string: String) -> String { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `mainer` is never used [INFO] [stdout] --> ownership/src/mutable_reference.rs:1:8 [INFO] [stdout] | [INFO] [stdout] 1 | pub fn mainer() { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `change` is never used [INFO] [stdout] --> ownership/src/mutable_reference.rs:8:4 [INFO] [stdout] | [INFO] [stdout] 8 | fn change(some_string: &mut String) { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `combine_types_of_references` is never used [INFO] [stdout] --> ownership/src/mutable_reference.rs:37:8 [INFO] [stdout] | [INFO] [stdout] 37 | pub fn combine_types_of_references() { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 8 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 13 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking rustbasics v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.39s [INFO] running `Command { std: "docker" "inspect" "2bde6d8cc924e39a0be2b7601efb3217f733d1f8c7552033e3b2422e14dcb919", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "2bde6d8cc924e39a0be2b7601efb3217f733d1f8c7552033e3b2422e14dcb919", kill_on_drop: false }` [INFO] [stdout] 2bde6d8cc924e39a0be2b7601efb3217f733d1f8c7552033e3b2422e14dcb919