[INFO] updating cached repository https://github.com/weiyinfu/learnRust [INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"` [INFO] [stderr] From https://github.com/weiyinfu/learnRust [INFO] [stderr] edd3014..4be6b23 master -> master [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] 4be6b23c0b3097521c6ec0ec304143ecc3f8ac70 [INFO] checking weiyinfu/learnRust against try#8a749131e7beb72f6edacefd2bdcbed3d67b2112 for pr-72331 [INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fweiyinfu%2FlearnRust" "/workspace/builds/worker-3/source"` [INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/weiyinfu/learnRust on toolchain 8a749131e7beb72f6edacefd2bdcbed3d67b2112 [INFO] running `"/workspace/cargo-home/bin/cargo" "+8a749131e7beb72f6edacefd2bdcbed3d67b2112" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started tweaking git repo https://github.com/weiyinfu/learnRust [INFO] finished tweaking git repo https://github.com/weiyinfu/learnRust [INFO] tweaked toml for git repo https://github.com/weiyinfu/learnRust written to /workspace/builds/worker-3/source/Cargo.toml [INFO] crate git repo https://github.com/weiyinfu/learnRust already has a lockfile, it will not be regenerated [INFO] running `"/workspace/cargo-home/bin/cargo" "+8a749131e7beb72f6edacefd2bdcbed3d67b2112" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+8a749131e7beb72f6edacefd2bdcbed3d67b2112" "check" "--frozen" "--all" "--all-targets"` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] 06c9b862e862474025c34399b7d57af4f4aa34b419118aa3c690a24bd11676d5 [INFO] running `"docker" "start" "-a" "06c9b862e862474025c34399b7d57af4f4aa34b419118aa3c690a24bd11676d5"` [INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted [INFO] [stderr] Compiling libc v0.2.69 [INFO] [stderr] Compiling proc-macro2 v1.0.12 [INFO] [stderr] Compiling log v0.4.8 [INFO] [stderr] Compiling syn v1.0.18 [INFO] [stderr] Checking futures-task v0.3.4 [INFO] [stderr] Checking pin-utils v0.1.0 [INFO] [stderr] Checking try-lock v0.2.2 [INFO] [stderr] Checking vec_map v0.8.1 [INFO] [stderr] Checking tower-service v0.3.0 [INFO] [stderr] Checking futures-channel v0.3.4 [INFO] [stderr] Checking http-body v0.3.1 [INFO] [stderr] Checking serde_json v1.0.52 [INFO] [stderr] Checking futures-util v0.3.4 [INFO] [stderr] Checking want v0.3.0 [INFO] [stderr] Compiling quote v1.0.4 [INFO] [stderr] Checking iovec v0.1.4 [INFO] [stderr] Checking net2 v0.2.34 [INFO] [stderr] Checking backtrace-sys v0.1.35 [INFO] [stderr] Checking atty v0.2.14 [INFO] [stderr] Checking time v0.1.43 [INFO] [stderr] Checking rand v0.4.6 [INFO] [stderr] Checking backtrace v0.3.46 [INFO] [stderr] Checking clap v2.33.0 [INFO] [stderr] Checking mio v0.6.22 [INFO] [stderr] Checking error-chain v0.10.0 [INFO] [stderr] Checking chrono v0.4.11 [INFO] [stderr] Checking rand v0.3.23 [INFO] [stderr] Checking tokio v0.2.20 [INFO] [stderr] Checking ferris-says v0.1.2 [INFO] [stderr] Checking tokio-util v0.3.1 [INFO] [stderr] Checking h2 v0.2.4 [INFO] [stderr] Compiling pin-project-internal v0.4.9 [INFO] [stderr] Compiling serde_derive v1.0.106 [INFO] [stderr] Checking pin-project v0.4.9 [INFO] [stderr] Checking hyper v0.13.5 [INFO] [stderr] Checking learnRust v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] warning: function is never used: `b` [INFO] [stderr] --> src/cnTest.rs:32:4 [INFO] [stderr] | [INFO] [stderr] 32 | fn b() {} [INFO] [stderr] | ^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: 1 warning emitted [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/abPrint.rs:111:17 [INFO] [stderr] | [INFO] [stderr] 111 | write!(f, "["); [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] = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/abPrint.rs:117:25 [INFO] [stderr] | [INFO] [stderr] 117 | write!(f, ","); [INFO] [stderr] | ^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/abPrint.rs:119:21 [INFO] [stderr] | [INFO] [stderr] 119 | write!(f, "{}", self.0[i]); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] warning: 3 warnings emitted [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `xNode` [INFO] [stderr] --> src/aeEnum.rs:59:13 [INFO] [stderr] | [INFO] [stderr] 59 | xNode(i32), [INFO] [stderr] | ^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: field is never read: `name` [INFO] [stderr] --> src/aeEnum.rs:60:20 [INFO] [stderr] | [INFO] [stderr] 60 | User { name: String, age: i32 }, [INFO] [stderr] | ^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: field is never read: `age` [INFO] [stderr] --> src/aeEnum.rs:60:34 [INFO] [stderr] | [INFO] [stderr] 60 | User { name: String, age: i32 }, [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `Move` [INFO] [stderr] --> src/aeEnum.rs:86:13 [INFO] [stderr] | [INFO] [stderr] 86 | Move { x: i32, y: i32 }, [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `Write` [INFO] [stderr] --> src/aeEnum.rs:87:13 [INFO] [stderr] | [INFO] [stderr] 87 | Write(String), [INFO] [stderr] | ^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `ChangeColor` [INFO] [stderr] --> src/aeEnum.rs:88:13 [INFO] [stderr] | [INFO] [stderr] 88 | ChangeColor(i32, i32, i32), [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: field is never read: `name` [INFO] [stderr] --> src/afStruct.rs:29:9 [INFO] [stderr] | [INFO] [stderr] 29 | name: String, [INFO] [stderr] | ^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `one` [INFO] [stderr] --> src/afStruct.rs:46:12 [INFO] [stderr] | [INFO] [stderr] 46 | fn one() { [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `two` [INFO] [stderr] --> src/afStruct.rs:49:12 [INFO] [stderr] | [INFO] [stderr] 49 | fn two(&self) { [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `four` [INFO] [stderr] --> src/afStruct.rs:55:12 [INFO] [stderr] | [INFO] [stderr] 55 | fn four(&mut self) { [INFO] [stderr] | ^^^^ [INFO] [stderr] [INFO] [stderr] warning: struct is never constructed: `Node` [INFO] [stderr] --> src/afStruct.rs:89:12 [INFO] [stderr] | [INFO] [stderr] 89 | struct Node; [INFO] [stderr] | ^^^^ [INFO] [stderr] [INFO] [stderr] warning: enum is never used: `No` [INFO] [stderr] --> src/afStruct.rs:90:10 [INFO] [stderr] | [INFO] [stderr] 90 | enum No {}; [INFO] [stderr] | ^^ [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `Red` [INFO] [stderr] --> src/apMatch.rs:52:13 [INFO] [stderr] | [INFO] [stderr] 52 | Red, [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `Blue` [INFO] [stderr] --> src/apMatch.rs:53:13 [INFO] [stderr] | [INFO] [stderr] 53 | Blue, [INFO] [stderr] | ^^^^ [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `Green` [INFO] [stderr] --> src/apMatch.rs:54:13 [INFO] [stderr] | [INFO] [stderr] 54 | Green, [INFO] [stderr] | ^^^^^ [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `HSV` [INFO] [stderr] --> src/apMatch.rs:57:13 [INFO] [stderr] | [INFO] [stderr] 57 | HSV(u32, u32, u32), [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `HSL` [INFO] [stderr] --> src/apMatch.rs:58:13 [INFO] [stderr] | [INFO] [stderr] 58 | HSL(u32, u32, u32), [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `CMY` [INFO] [stderr] --> src/apMatch.rs:59:13 [INFO] [stderr] | [INFO] [stderr] 59 | CMY(u32, u32, u32), [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `CMYK` [INFO] [stderr] --> src/apMatch.rs:60:13 [INFO] [stderr] | [INFO] [stderr] 60 | CMYK(u32, u32, u32, u32), [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: field is never read: `y` [INFO] [stderr] --> src/apMatch.rs:122:13 [INFO] [stderr] | [INFO] [stderr] 122 | y: i32, [INFO] [stderr] | ^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `Missing` [INFO] [stderr] --> src/apMatch.rs:133:13 [INFO] [stderr] | [INFO] [stderr] 133 | Missing, [INFO] [stderr] | ^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `Err` [INFO] [stderr] --> src/aqUsefulStruct.rs:70:9 [INFO] [stderr] | [INFO] [stderr] 70 | Err(E), [INFO] [stderr] | ^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `haha` [INFO] [stderr] --> src/caModule.rs:89:12 [INFO] [stderr] | [INFO] [stderr] 89 | fn haha() { [INFO] [stderr] | ^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `haha` [INFO] [stderr] --> src/caModule.rs:94:27 [INFO] [stderr] | [INFO] [stderr] 94 | pub(crate) fn haha() { [INFO] [stderr] | ^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `haha` [INFO] [stderr] --> src/caModule.rs:100:16 [INFO] [stderr] | [INFO] [stderr] 100 | fn haha() { [INFO] [stderr] | ^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `distance` [INFO] [stderr] --> src/ccInterface.rs:253:12 [INFO] [stderr] | [INFO] [stderr] 253 | fn distance>(graph: &G, start: &N, end: &N) -> u32 { [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `distance` [INFO] [stderr] --> src/ccInterface.rs:267:12 [INFO] [stderr] | [INFO] [stderr] 267 | fn distance(graph: &G, start: &G::N, end: &G::N) -> u32 { [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `Some` [INFO] [stderr] --> src/cdGeneric.rs:45:9 [INFO] [stderr] | [INFO] [stderr] 45 | Some(T), [INFO] [stderr] | ^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `None` [INFO] [stderr] --> src/cdGeneric.rs:46:9 [INFO] [stderr] | [INFO] [stderr] 46 | None, [INFO] [stderr] | ^^^^ [INFO] [stderr] [INFO] [stderr] warning: enum is never used: `Result` [INFO] [stderr] --> src/cdGeneric.rs:48:10 [INFO] [stderr] | [INFO] [stderr] 48 | enum Result { [INFO] [stderr] | ^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/abPrint.rs:111:17 [INFO] [stderr] | [INFO] [stderr] 111 | write!(f, "["); [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] = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/abPrint.rs:117:25 [INFO] [stderr] | [INFO] [stderr] 117 | write!(f, ","); [INFO] [stderr] | ^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/abPrint.rs:119:21 [INFO] [stderr] | [INFO] [stderr] 119 | write!(f, "{}", self.0[i]); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] warning: constant `x` should have an upper case name [INFO] [stderr] --> src/aeArray.rs:12:11 [INFO] [stderr] | [INFO] [stderr] 12 | const x: i32 = 3; [INFO] [stderr] | ^ help: convert the identifier to upper case (notice the capitalization): `X` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(non_upper_case_globals)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused arithmetic operation that must be used [INFO] [stderr] --> src/aoExpression.rs:19:13 [INFO] [stderr] | [INFO] [stderr] 19 | 2 * x; [INFO] [stderr] | ^^^^^ [INFO] [stderr] [INFO] [stderr] warning: path statement with no effect [INFO] [stderr] --> src/ckClosure.rs:192:13 [INFO] [stderr] | [INFO] [stderr] 192 | s; [INFO] [stderr] | ^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(path_statements)]` on by default [INFO] [stderr] [INFO] [stderr] warning: static variable `x` should have an upper case name [INFO] [stderr] --> src/daSingleton.rs:75:20 [INFO] [stderr] | [INFO] [stderr] 75 | static mut x: i32 = 0; [INFO] [stderr] | ^ help: convert the identifier to upper case (notice the capitalization): `X` [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/mcFile.rs:27:9 [INFO] [stderr] | [INFO] [stderr] 27 | file.read_to_string(&mut content); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: constant `n` should have an upper case name [INFO] [stderr] --> src/mhVec.rs:120:11 [INFO] [stderr] | [INFO] [stderr] 120 | const n: usize = 10; [INFO] [stderr] | ^ help: convert the identifier to upper case: `N` [INFO] [stderr] [INFO] [stderr] warning: 39 warnings emitted [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 1m 13s [INFO] running `"docker" "inspect" "06c9b862e862474025c34399b7d57af4f4aa34b419118aa3c690a24bd11676d5"` [INFO] running `"docker" "rm" "-f" "06c9b862e862474025c34399b7d57af4f4aa34b419118aa3c690a24bd11676d5"` [INFO] [stdout] 06c9b862e862474025c34399b7d57af4f4aa34b419118aa3c690a24bd11676d5