[INFO] updating cached repository EdenCao/rust_learning [INFO] running `"git" "fetch" "--all"` [INFO] [stdout] Fetching origin [INFO] [stderr] From git://github.com/EdenCao/rust_learning [INFO] [stderr] * branch HEAD -> FETCH_HEAD [INFO] running `"git" "clone" "work/cache/sources/gh/EdenCao/rust_learning" "work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/EdenCao/rust_learning"` [INFO] [stderr] Cloning into 'work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/EdenCao/rust_learning'... [INFO] [stderr] done. [INFO] running `"git" "clone" "work/cache/sources/gh/EdenCao/rust_learning" "work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/EdenCao/rust_learning"` [INFO] [stderr] Cloning into 'work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/EdenCao/rust_learning'... [INFO] [stderr] done. [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] 3b85aa524f292dd7b9939ed7d5de8b6456618f9f [INFO] sha for GitHub repo EdenCao/rust_learning: 3b85aa524f292dd7b9939ed7d5de8b6456618f9f [INFO] validating manifest of EdenCao/rust_learning on toolchain master#60960a260f7b5c695fd0717311d72ce62dd4eb43 [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+60960a260f7b5c695fd0717311d72ce62dd4eb43-alt" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] validating manifest of EdenCao/rust_learning on toolchain try#266783e4e09e4e9d5307c1c8e695659c58bbcac7 [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started frobbing EdenCao/rust_learning [INFO] finished frobbing EdenCao/rust_learning [INFO] frobbed toml for EdenCao/rust_learning written to work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/EdenCao/rust_learning/Cargo.toml [INFO] started frobbing EdenCao/rust_learning [INFO] finished frobbing EdenCao/rust_learning [INFO] frobbed toml for EdenCao/rust_learning written to work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/EdenCao/rust_learning/Cargo.toml [INFO] crate EdenCao/rust_learning already has a lockfile, it will not be regenerated [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+60960a260f7b5c695fd0717311d72ce62dd4eb43-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] checking EdenCao/rust_learning against try#266783e4e09e4e9d5307c1c8e695659c58bbcac7 for pr-63376 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-63376/worker-2/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/EdenCao/rust_learning:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "check" "--frozen" "--all" "--all-targets"` [INFO] [stdout] baf1e47e294dba58c55c64e7003043646d24377325599b8f400fe883511dfc0f [INFO] running `"docker" "start" "-a" "baf1e47e294dba58c55c64e7003043646d24377325599b8f400fe883511dfc0f"` [INFO] [stderr] Checking rust_learning v0.1.0 (/opt/crater/workdir) [INFO] [stderr] warning: unused variable: `s6` [INFO] [stderr] --> src/owner.rs:19:7 [INFO] [stderr] | [INFO] [stderr] 19 | let s6 = s5; [INFO] [stderr] | ^^ help: consider prefixing with an underscore: `_s6` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: function is never used: `gives_ownership` [INFO] [stderr] --> src/owner.rs:37:1 [INFO] [stderr] | [INFO] [stderr] 37 | fn gives_ownership() -> String { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `integer` [INFO] [stderr] --> src/generics.rs:14:7 [INFO] [stderr] | [INFO] [stderr] 14 | let integer = Point { [INFO] [stderr] | ^^^^^^^ help: consider prefixing with an underscore: `_integer` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: field is never used: `y` [INFO] [stderr] --> src/generics.rs:3:3 [INFO] [stderr] | [INFO] [stderr] 3 | y: T [INFO] [stderr] | ^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused doc comment [INFO] [stderr] --> src/struct_ex.rs:17:3 [INFO] [stderr] | [INFO] [stderr] 17 | /// [INFO] [stderr] | ^^^ [INFO] [stderr] 18 | let rect1 = (30, 50); [INFO] [stderr] | --------------------- rustdoc does not generate documentation for statements [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_doc_comments)]` on by default [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/blog.rs:2:21 [INFO] [stderr] | [INFO] [stderr] 2 | state: Option>, [INFO] [stderr] | ^^^^^ help: use `dyn`: `dyn State` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/blog.rs:33:45 [INFO] [stderr] | [INFO] [stderr] 33 | fn request_review(self: Box) -> Box; [INFO] [stderr] | ^^^^^ help: use `dyn`: `dyn State` [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/blog.rs:34:38 [INFO] [stderr] | [INFO] [stderr] 34 | fn approve(self: Box) -> Box; [INFO] [stderr] | ^^^^^ help: use `dyn`: `dyn State` [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/blog.rs:40:45 [INFO] [stderr] | [INFO] [stderr] 40 | fn request_review(self: Box) -> Box { [INFO] [stderr] | ^^^^^ help: use `dyn`: `dyn State` [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/blog.rs:44:38 [INFO] [stderr] | [INFO] [stderr] 44 | fn approve(self: Box) -> Box { [INFO] [stderr] | ^^^^^ help: use `dyn`: `dyn State` [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/blog.rs:52:45 [INFO] [stderr] | [INFO] [stderr] 52 | fn request_review(self: Box) -> Box { [INFO] [stderr] | ^^^^^ help: use `dyn`: `dyn State` [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/blog.rs:56:38 [INFO] [stderr] | [INFO] [stderr] 56 | fn approve(self: Box) -> Box { [INFO] [stderr] | ^^^^^ help: use `dyn`: `dyn State` [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/blog.rs:64:45 [INFO] [stderr] | [INFO] [stderr] 64 | fn request_review(self: Box) -> Box { [INFO] [stderr] | ^^^^^ help: use `dyn`: `dyn State` [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/blog.rs:68:38 [INFO] [stderr] | [INFO] [stderr] 68 | fn approve(self: Box) -> Box { [INFO] [stderr] | ^^^^^ help: use `dyn`: `dyn State` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `post` [INFO] [stderr] --> src/blog.rs:30:25 [INFO] [stderr] | [INFO] [stderr] 30 | fn content<'a>(&self, post: &'a Post) -> &'a str { [INFO] [stderr] | ^^^^ help: consider prefixing with an underscore: `_post` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `user2` [INFO] [stderr] --> src/struct.rs:14:7 [INFO] [stderr] | [INFO] [stderr] 14 | let user2 = User { [INFO] [stderr] | ^^^^^ help: consider prefixing with an underscore: `_user2` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `black` [INFO] [stderr] --> src/struct.rs:20:7 [INFO] [stderr] | [INFO] [stderr] 20 | let black = Color(0, 0, 0); [INFO] [stderr] | ^^^^^ help: consider prefixing with an underscore: `_black` [INFO] [stderr] [INFO] [stderr] warning: field is never used: `username` [INFO] [stderr] --> src/struct.rs:2:3 [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 used: `email` [INFO] [stderr] --> src/struct.rs:3:3 [INFO] [stderr] | [INFO] [stderr] 3 | email: String, [INFO] [stderr] | ^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: field is never used: `sign_in_count` [INFO] [stderr] --> src/struct.rs:4:3 [INFO] [stderr] | [INFO] [stderr] 4 | sign_in_count: u64, [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: field is never used: `active` [INFO] [stderr] --> src/struct.rs:5:3 [INFO] [stderr] | [INFO] [stderr] 5 | active: bool [INFO] [stderr] | ^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: variable `count` is assigned to, but never used [INFO] [stderr] --> src/iflet.rs:20:11 [INFO] [stderr] | [INFO] [stderr] 20 | let mut count = 0; [INFO] [stderr] | ^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] = note: consider using `_count` instead [INFO] [stderr] [INFO] [stderr] warning: value assigned to `count` is never read [INFO] [stderr] --> src/iflet.rs:25:5 [INFO] [stderr] | [INFO] [stderr] 25 | count += 1; [INFO] [stderr] | ^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_assignments)]` on by default [INFO] [stderr] = help: maybe it is overwritten before being read? [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `Penny` [INFO] [stderr] --> src/iflet.rs:2:3 [INFO] [stderr] | [INFO] [stderr] 2 | Penny, [INFO] [stderr] | ^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `Nickel` [INFO] [stderr] --> src/iflet.rs:3:3 [INFO] [stderr] | [INFO] [stderr] 3 | Nickel, [INFO] [stderr] | ^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `Dime` [INFO] [stderr] --> src/iflet.rs:4:3 [INFO] [stderr] | [INFO] [stderr] 4 | Dime, [INFO] [stderr] | ^^^^ [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `Alabama` [INFO] [stderr] --> src/iflet.rs:10:3 [INFO] [stderr] | [INFO] [stderr] 10 | Alabama, [INFO] [stderr] | ^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused variable: `s6` [INFO] [stderr] --> src/owner.rs:19:7 [INFO] [stderr] | [INFO] [stderr] 19 | let s6 = s5; [INFO] [stderr] | ^^ help: consider prefixing with an underscore: `_s6` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: function is never used: `gives_ownership` [INFO] [stderr] --> src/owner.rs:37:1 [INFO] [stderr] | [INFO] [stderr] 37 | fn gives_ownership() -> String { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] error[E0601]: `main` function not found in crate `refcall` [INFO] [stderr] | [INFO] [stderr] = note: consider adding a `main` function to `src/refcall.rs` [INFO] [stderr] [INFO] [stderr] error: aborting due to previous error [INFO] [stderr] [INFO] [stderr] For more information about this error, try `rustc --explain E0601`. [INFO] [stderr] error: Could not compile `rust_learning`. [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stderr] warning: unused import: `std::rc::Rc` [INFO] [stderr] --> src/shared_mem.rs:1:5 [INFO] [stderr] | [INFO] [stderr] 1 | use std::rc::Rc; [INFO] [stderr] | ^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/slice.rs:2:7 [INFO] [stderr] | [INFO] [stderr] 2 | let mut s = String::from("hello world"); [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: unused variable: `six` [INFO] [stderr] --> src/enum.rs:20:7 [INFO] [stderr] | [INFO] [stderr] 20 | let six = IpAddrKind::V6; [INFO] [stderr] | ^^^ help: consider prefixing with an underscore: `_six` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `home` [INFO] [stderr] --> src/enum.rs:27:7 [INFO] [stderr] | [INFO] [stderr] 27 | let home = IpAddr { [INFO] [stderr] | ^^^^ help: consider prefixing with an underscore: `_home` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `op_type` [INFO] [stderr] --> src/enum.rs:35:10 [INFO] [stderr] | [INFO] [stderr] 35 | fn route(op_type: IpAddrKind) { } [INFO] [stderr] | ^^^^^^^ help: consider prefixing with an underscore: `_op_type` [INFO] [stderr] [INFO] [stderr] warning: field is never used: `kind` [INFO] [stderr] --> src/enum.rs:14:3 [INFO] [stderr] | [INFO] [stderr] 14 | kind: IpAddrKind, [INFO] [stderr] | ^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: field is never used: `address` [INFO] [stderr] --> src/enum.rs:15:3 [INFO] [stderr] | [INFO] [stderr] 15 | address: String [INFO] [stderr] | ^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/blog.rs:2:21 [INFO] [stderr] | [INFO] [stderr] 2 | state: Option>, [INFO] [stderr] | ^^^^^ help: use `dyn`: `dyn State` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/blog.rs:33:45 [INFO] [stderr] | [INFO] [stderr] 33 | fn request_review(self: Box) -> Box; [INFO] [stderr] | ^^^^^ help: use `dyn`: `dyn State` [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/blog.rs:34:38 [INFO] [stderr] | [INFO] [stderr] 34 | fn approve(self: Box) -> Box; [INFO] [stderr] | ^^^^^ help: use `dyn`: `dyn State` [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/blog.rs:40:45 [INFO] [stderr] | [INFO] [stderr] 40 | fn request_review(self: Box) -> Box { [INFO] [stderr] | ^^^^^ help: use `dyn`: `dyn State` [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/blog.rs:44:38 [INFO] [stderr] | [INFO] [stderr] 44 | fn approve(self: Box) -> Box { [INFO] [stderr] | ^^^^^ help: use `dyn`: `dyn State` [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/blog.rs:52:45 [INFO] [stderr] | [INFO] [stderr] 52 | fn request_review(self: Box) -> Box { [INFO] [stderr] | ^^^^^ help: use `dyn`: `dyn State` [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/blog.rs:56:38 [INFO] [stderr] | [INFO] [stderr] 56 | fn approve(self: Box) -> Box { [INFO] [stderr] | ^^^^^ help: use `dyn`: `dyn State` [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/blog.rs:64:45 [INFO] [stderr] | [INFO] [stderr] 64 | fn request_review(self: Box) -> Box { [INFO] [stderr] | ^^^^^ help: use `dyn`: `dyn State` [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/blog.rs:68:38 [INFO] [stderr] | [INFO] [stderr] 68 | fn approve(self: Box) -> Box { [INFO] [stderr] | ^^^^^ help: use `dyn`: `dyn State` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `post` [INFO] [stderr] --> src/blog.rs:30:25 [INFO] [stderr] | [INFO] [stderr] 30 | fn content<'a>(&self, post: &'a Post) -> &'a str { [INFO] [stderr] | ^^^^ help: consider prefixing with an underscore: `_post` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] error: build failed [INFO] running `"docker" "inspect" "baf1e47e294dba58c55c64e7003043646d24377325599b8f400fe883511dfc0f"` [INFO] running `"docker" "rm" "-f" "baf1e47e294dba58c55c64e7003043646d24377325599b8f400fe883511dfc0f"` [INFO] [stdout] baf1e47e294dba58c55c64e7003043646d24377325599b8f400fe883511dfc0f