[INFO] cloning repository https://github.com/CreatorsDAO/rust-co-learn [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/CreatorsDAO/rust-co-learn" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCreatorsDAO%2Frust-co-learn", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCreatorsDAO%2Frust-co-learn'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 02a2a2141c7fcc577d410c161831138f3ec45bfb [INFO] checking CreatorsDAO/rust-co-learn against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCreatorsDAO%2Frust-co-learn" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/CreatorsDAO/rust-co-learn on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/CreatorsDAO/rust-co-learn [INFO] finished tweaking git repo https://github.com/CreatorsDAO/rust-co-learn [INFO] tweaked toml for git repo https://github.com/CreatorsDAO/rust-co-learn written to /workspace/builds/worker-6-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/CreatorsDAO/rust-co-learn 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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] warning: virtual workspace defaulting to `resolver = "1"` despite one or more workspace members being on edition 2021 which implies `resolver = "2"` [INFO] [stderr] note: to keep the current resolver, specify `workspace.resolver = "1"` in the workspace root's manifest [INFO] [stderr] note: to use the edition 2021 resolver, specify `workspace.resolver = "2"` in the workspace root's manifest [INFO] [stderr] note: for more details see https://doc.rust-lang.org/cargo/reference/resolver.html#resolver-versions [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded serde_derive v1.0.168 [INFO] [stderr] Downloaded serde v1.0.168 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] ae83cecf67c66a916e666f74b5734d2f6a9cdcaf3f2cd8ed70305860ea0c4d46 [INFO] running `Command { std: "docker" "start" "-a" "ae83cecf67c66a916e666f74b5734d2f6a9cdcaf3f2cd8ed70305860ea0c4d46", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "ae83cecf67c66a916e666f74b5734d2f6a9cdcaf3f2cd8ed70305860ea0c4d46", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "ae83cecf67c66a916e666f74b5734d2f6a9cdcaf3f2cd8ed70305860ea0c4d46", kill_on_drop: false }` [INFO] [stdout] ae83cecf67c66a916e666f74b5734d2f6a9cdcaf3f2cd8ed70305860ea0c4d46 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 1519dcb83cc4762fae4e9f02d8c5d82accef1bdd67f93df28381143d6e979ec3 [INFO] running `Command { std: "docker" "start" "-a" "1519dcb83cc4762fae4e9f02d8c5d82accef1bdd67f93df28381143d6e979ec3", kill_on_drop: false }` [INFO] [stderr] warning: virtual workspace defaulting to `resolver = "1"` despite one or more workspace members being on edition 2021 which implies `resolver = "2"` [INFO] [stderr] note: to keep the current resolver, specify `workspace.resolver = "1"` in the workspace root's manifest [INFO] [stderr] note: to use the edition 2021 resolver, specify `workspace.resolver = "2"` in the workspace root's manifest [INFO] [stderr] note: for more details see https://doc.rust-lang.org/cargo/reference/resolver.html#resolver-versions [INFO] [stderr] Compiling proc-macro2 v1.0.63 [INFO] [stderr] Compiling quote v1.0.29 [INFO] [stderr] Compiling unicode-ident v1.0.8 [INFO] [stderr] Compiling libc v0.2.147 [INFO] [stderr] Compiling syn v1.0.109 [INFO] [stderr] Compiling cc v1.0.79 [INFO] [stderr] Compiling parking_lot_core v0.9.8 [INFO] [stderr] Checking pin-project-lite v0.2.10 [INFO] [stderr] Checking smallvec v1.11.0 [INFO] [stderr] Compiling lock_api v0.4.10 [INFO] [stderr] Compiling tokio v1.29.1 [INFO] [stderr] Checking itoa v1.0.8 [INFO] [stderr] Compiling openssl v0.10.55 [INFO] [stderr] Checking foreign-types-shared v0.1.1 [INFO] [stderr] Compiling futures-util v0.3.28 [INFO] [stderr] Checking tracing v0.1.37 [INFO] [stderr] Checking foreign-types v0.3.2 [INFO] [stderr] Checking tinyvec_macros v0.1.1 [INFO] [stderr] Compiling serde v1.0.168 [INFO] [stderr] Compiling native-tls v0.2.11 [INFO] [stderr] Compiling futures-channel v0.3.28 [INFO] [stderr] Checking http v0.2.9 [INFO] [stderr] Compiling httparse v1.8.0 [INFO] [stderr] Checking tinyvec v1.6.0 [INFO] [stderr] Checking openssl-probe v0.1.5 [INFO] [stderr] Checking percent-encoding v2.3.0 [INFO] [stderr] Checking log v0.4.19 [INFO] [stderr] Checking try-lock v0.2.4 [INFO] [stderr] Checking want v0.3.1 [INFO] [stderr] Compiling serde_json v1.0.100 [INFO] [stderr] Compiling thiserror v1.0.40 [INFO] [stderr] Checking form_urlencoded v1.2.0 [INFO] [stderr] Checking tower-service v0.3.2 [INFO] [stderr] Checking httpdate v1.0.2 [INFO] [stderr] Checking ryu v1.0.14 [INFO] [stderr] Checking unicode-bidi v0.3.13 [INFO] [stderr] Checking encoding_rs v0.8.32 [INFO] [stderr] Checking base64 v0.21.2 [INFO] [stderr] Checking mime v0.3.17 [INFO] [stderr] Checking ipnet v2.8.0 [INFO] [stderr] Checking module-three v0.1.0 (/opt/rustwide/workdir/module-three) [INFO] [stderr] Checking module-two v0.1.0 (/opt/rustwide/workdir/module-two) [INFO] [stderr] Checking module_one v0.1.0 (/opt/rustwide/workdir/module-one) [INFO] [stdout] warning: function `add` is never used [INFO] [stdout] --> module-one/src/comment/comment.rs:11:4 [INFO] [stdout] | [INFO] [stdout] 11 | fn add(x: i32, y: i32) -> 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] [stdout] warning: unused variable: `s` [INFO] [stdout] --> module-three/examples/main.rs:63:9 [INFO] [stdout] | [INFO] [stdout] 63 | let s = "rust".to_string(); [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: `num` [INFO] [stdout] --> module-three/examples/main.rs:64:9 [INFO] [stdout] | [INFO] [stdout] 64 | let num = Box::new(100); [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_num` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `v` [INFO] [stdout] --> module-three/examples/main.rs:70:9 [INFO] [stdout] | [INFO] [stdout] 70 | let v = [1, 2, 3, 4]; [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_v` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `user` [INFO] [stdout] --> module-three/examples/main.rs:136:17 [INFO] [stdout] | [INFO] [stdout] 136 | let mut user = User { [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_user` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `ref_my_box` [INFO] [stdout] --> module-three/examples/main.rs:150:13 [INFO] [stdout] | [INFO] [stdout] 150 | let ref_my_box = *m; // 实现了 Deref trait的智能指针可以使用 * 直接解引用到内部的值, [INFO] [stdout] | ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_ref_my_box` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `ref_my_box` [INFO] [stdout] --> module-three/examples/main.rs:152:13 [INFO] [stdout] | [INFO] [stdout] 152 | let ref_my_box = *(m.deref()); [INFO] [stdout] | ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_ref_my_box` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> module-three/examples/main.rs:136:13 [INFO] [stdout] | [INFO] [stdout] 136 | let mut user = User { [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 `0` is never read [INFO] [stdout] --> module-three/examples/main.rs:15:14 [INFO] [stdout] | [INFO] [stdout] 15 | struct A(i32); [INFO] [stdout] | - ^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this struct [INFO] [stdout] | [INFO] [stdout] = note: `A` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [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] 15 | struct A(()); [INFO] [stdout] | ~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> module-three/examples/main.rs:36:14 [INFO] [stdout] | [INFO] [stdout] 36 | struct B(i32); [INFO] [stdout] | - ^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this struct [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] 36 | struct B(()); [INFO] [stdout] | ~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `name` and `age` are never read [INFO] [stdout] --> module-three/examples/main.rs:109:9 [INFO] [stdout] | [INFO] [stdout] 108 | struct User { [INFO] [stdout] | ---- fields in this struct [INFO] [stdout] 109 | name: String, [INFO] [stdout] | ^^^^ [INFO] [stdout] 110 | age: u32, [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: `User` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 10 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `add` is never used [INFO] [stdout] --> module-one/src/comment/comment.rs:11:4 [INFO] [stdout] | [INFO] [stdout] 11 | fn add(x: i32, y: i32) -> 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] Checking http-body v0.4.5 [INFO] [stderr] Compiling openssl-sys v0.9.90 [INFO] [stderr] Checking unicode-normalization v0.1.22 [INFO] [stderr] Compiling syn v2.0.22 [INFO] [stderr] Checking idna v0.4.0 [INFO] [stderr] Checking mio v0.8.8 [INFO] [stderr] Checking socket2 v0.4.9 [INFO] [stderr] Checking num_cpus v1.16.0 [INFO] [stderr] Checking signal-hook-registry v1.4.1 [INFO] [stderr] Checking parking_lot v0.12.1 [INFO] [stderr] Checking url v2.4.0 [INFO] [stderr] Checking derive-macro v0.1.0 (/opt/rustwide/workdir/derive-macro) [INFO] [stderr] Checking attribute-macro v0.1.0 (/opt/rustwide/workdir/attribute-macro) [INFO] [stderr] Checking function-like-macro v0.1.0 (/opt/rustwide/workdir/function-like-macro) [INFO] [stderr] Compiling tokio-macros v2.1.0 [INFO] [stderr] Compiling openssl-macros v0.1.1 [INFO] [stderr] Compiling serde_derive v1.0.168 [INFO] [stderr] Compiling thiserror-impl v1.0.40 [INFO] [stderr] Checking module-six v0.1.0 (/opt/rustwide/workdir/module-six) [INFO] [stderr] Checking module-four v0.1.0 (/opt/rustwide/workdir/module-four) [INFO] [stdout] warning: function `doc_test` is never used [INFO] [stdout] --> module-four/src/project_tests/doc_test.rs:13:4 [INFO] [stdout] | [INFO] [stdout] 13 | fn doc_test() {} [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] [stdout] warning: function `doc_test` is never used [INFO] [stdout] --> module-four/src/project_tests/doc_test.rs:13:4 [INFO] [stdout] | [INFO] [stdout] 13 | fn doc_test() {} [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] [stdout] warning: function `read_file` is never used [INFO] [stdout] --> module-four/examples/main.rs:14:4 [INFO] [stdout] | [INFO] [stdout] 14 | fn read_file(path: &str) -> Result { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Rectangle` is never constructed [INFO] [stdout] --> module-four/examples/main.rs:26:8 [INFO] [stdout] | [INFO] [stdout] 26 | struct Rectangle { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `can_hold` is never used [INFO] [stdout] --> module-four/examples/main.rs:32:8 [INFO] [stdout] | [INFO] [stdout] 31 | impl Rectangle { [INFO] [stdout] | -------------- method in this implementation [INFO] [stdout] 32 | fn can_hold(&self, other: &Rectangle) -> bool { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `value` is never read [INFO] [stdout] --> module-four/examples/main.rs:42:5 [INFO] [stdout] | [INFO] [stdout] 41 | pub struct Guess { [INFO] [stdout] | ----- field in this struct [INFO] [stdout] 42 | value: i32, [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking tokio-util v0.7.8 [INFO] [stderr] Checking tokio-native-tls v0.3.1 [INFO] [stderr] Checking h2 v0.3.20 [INFO] [stderr] Checking serde_urlencoded v0.7.1 [INFO] [stderr] Checking hyper v0.14.27 [INFO] [stderr] Checking hyper-tls v0.5.0 [INFO] [stderr] Checking reqwest v0.11.18 [INFO] [stderr] Checking module-five v0.1.0 (/opt/rustwide/workdir/module-five) [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 28.71s [INFO] running `Command { std: "docker" "inspect" "1519dcb83cc4762fae4e9f02d8c5d82accef1bdd67f93df28381143d6e979ec3", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "1519dcb83cc4762fae4e9f02d8c5d82accef1bdd67f93df28381143d6e979ec3", kill_on_drop: false }` [INFO] [stdout] 1519dcb83cc4762fae4e9f02d8c5d82accef1bdd67f93df28381143d6e979ec3