[INFO] cloning repository https://github.com/YanLong-111/RustLearning-RustScopes [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/YanLong-111/RustLearning-RustScopes" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FYanLong-111%2FRustLearning-RustScopes", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FYanLong-111%2FRustLearning-RustScopes'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 6d786425ec071a2a55367d3aade7d36907e31fb4 [INFO] checking YanLong-111/RustLearning-RustScopes/6d786425ec071a2a55367d3aade7d36907e31fb4 against master#f609b7e0586f81fefb3523e3e17adf779ac416be for pr-129466-2 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FYanLong-111%2FRustLearning-RustScopes" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/YanLong-111/RustLearning-RustScopes on toolchain f609b7e0586f81fefb3523e3e17adf779ac416be [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f609b7e0586f81fefb3523e3e17adf779ac416be" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/YanLong-111/RustLearning-RustScopes [INFO] finished tweaking git repo https://github.com/YanLong-111/RustLearning-RustScopes [INFO] tweaked toml for git repo https://github.com/YanLong-111/RustLearning-RustScopes written to /workspace/builds/worker-5-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/YanLong-111/RustLearning-RustScopes 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" "+f609b7e0586f81fefb3523e3e17adf779ac416be" "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@sha256:6252d7ea7fb8caaf7af6d800c5fb250a9cd862b9a7f9508afb3c54fa7fe1102e" "/opt/rustwide/cargo-home/bin/cargo" "+f609b7e0586f81fefb3523e3e17adf779ac416be" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 4e4b096f49932b27ee77442abbbbfbdf87b955934463d9dfec3e166fb5b40cfa [INFO] running `Command { std: "docker" "start" "-a" "4e4b096f49932b27ee77442abbbbfbdf87b955934463d9dfec3e166fb5b40cfa", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "4e4b096f49932b27ee77442abbbbfbdf87b955934463d9dfec3e166fb5b40cfa", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "4e4b096f49932b27ee77442abbbbfbdf87b955934463d9dfec3e166fb5b40cfa", kill_on_drop: false }` [INFO] [stdout] 4e4b096f49932b27ee77442abbbbfbdf87b955934463d9dfec3e166fb5b40cfa [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@sha256:6252d7ea7fb8caaf7af6d800c5fb250a9cd862b9a7f9508afb3c54fa7fe1102e" "/opt/rustwide/cargo-home/bin/cargo" "+f609b7e0586f81fefb3523e3e17adf779ac416be" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] b66a9a2ced2cc60deb27c3bf784f42b12bdb1f2c8c558d7bc46ef78506968987 [INFO] running `Command { std: "docker" "start" "-a" "b66a9a2ced2cc60deb27c3bf784f42b12bdb1f2c8c558d7bc46ef78506968987", kill_on_drop: false }` [INFO] [stderr] Checking Scpoes v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] error[E0106]: missing lifetime specifier [INFO] [stdout] --> src/main.rs:123:16 [INFO] [stdout] | [INFO] [stdout] 123 | fn dangle() -> &String { // 此处将会报错！！！ [INFO] [stdout] | ^ expected named lifetime parameter [INFO] [stdout] | [INFO] [stdout] = help: this function's return type contains a borrowed value, but there is no value for it to be borrowed from [INFO] [stdout] help: consider using the `'static` lifetime, but this is uncommon unless you're returning a borrowed value from a `const` or a `static` [INFO] [stdout] | [INFO] [stdout] 123 | fn dangle() -> &'static String { // 此处将会报错！！！ [INFO] [stdout] | +++++++ [INFO] [stdout] help: instead, you are more likely to want to return an owned value [INFO] [stdout] | [INFO] [stdout] 123 - fn dangle() -> &String { // 此处将会报错！！！ [INFO] [stdout] 123 + fn dangle() -> String { // 此处将会报错！！！ [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0106]: missing lifetime specifier [INFO] [stdout] --> src/main.rs:123:16 [INFO] [stdout] | [INFO] [stdout] 123 | fn dangle() -> &String { // 此处将会报错！！！ [INFO] [stdout] | ^ expected named lifetime parameter [INFO] [stdout] | [INFO] [stdout] = help: this function's return type contains a borrowed value, but there is no value for it to be borrowed from [INFO] [stdout] help: consider using the `'static` lifetime, but this is uncommon unless you're returning a borrowed value from a `const` or a `static` [INFO] [stdout] | [INFO] [stdout] 123 | fn dangle() -> &'static String { // 此处将会报错！！！ [INFO] [stdout] | +++++++ [INFO] [stdout] help: instead, you are more likely to want to return an owned value [INFO] [stdout] | [INFO] [stdout] 123 - fn dangle() -> &String { // 此处将会报错！！！ [INFO] [stdout] 123 + fn dangle() -> String { // 此处将会报错！！！ [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0599]: no function or associated item named `foem` found for struct `String` in the current scope [INFO] [stdout] --> src/main.rs:45:21 [INFO] [stdout] | [INFO] [stdout] 45 | let h = String::foem("hello");//h进入作用域 [INFO] [stdout] | ^^^^ function or associated item not found in `String` [INFO] [stdout] | [INFO] [stdout] note: if you're trying to build a new `String` consider using one of the following associated functions: [INFO] [stdout] String::new [INFO] [stdout] String::with_capacity [INFO] [stdout] String::try_with_capacity [INFO] [stdout] String::from_utf8 [INFO] [stdout] and 9 others [INFO] [stdout] --> /rustc/f609b7e0586f81fefb3523e3e17adf779ac416be/library/alloc/src/string.rs:445:5 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0599]: no function or associated item named `foem` found for struct `String` in the current scope [INFO] [stdout] --> src/main.rs:45:21 [INFO] [stdout] | [INFO] [stdout] 45 | let h = String::foem("hello");//h进入作用域 [INFO] [stdout] | ^^^^ function or associated item not found in `String` [INFO] [stdout] | [INFO] [stdout] note: if you're trying to build a new `String` consider using one of the following associated functions: [INFO] [stdout] String::new [INFO] [stdout] String::with_capacity [INFO] [stdout] String::try_with_capacity [INFO] [stdout] String::from_utf8 [INFO] [stdout] and 9 others [INFO] [stdout] --> /rustc/f609b7e0586f81fefb3523e3e17adf779ac416be/library/alloc/src/string.rs:445:5 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0599]: no function or associated item named `foem` found for struct `String` in the current scope [INFO] [stdout] --> src/main.rs:55:25 [INFO] [stdout] | [INFO] [stdout] 55 | let mut j = String::foem("hello");//j进入作用域 [INFO] [stdout] | ^^^^ function or associated item not found in `String` [INFO] [stdout] | [INFO] [stdout] note: if you're trying to build a new `String` consider using one of the following associated functions: [INFO] [stdout] String::new [INFO] [stdout] String::with_capacity [INFO] [stdout] String::try_with_capacity [INFO] [stdout] String::from_utf8 [INFO] [stdout] and 9 others [INFO] [stdout] --> /rustc/f609b7e0586f81fefb3523e3e17adf779ac416be/library/alloc/src/string.rs:445:5 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0599]: no function or associated item named `foem` found for struct `String` in the current scope [INFO] [stdout] --> src/main.rs:55:25 [INFO] [stdout] | [INFO] [stdout] 55 | let mut j = String::foem("hello");//j进入作用域 [INFO] [stdout] | ^^^^ function or associated item not found in `String` [INFO] [stdout] | [INFO] [stdout] note: if you're trying to build a new `String` consider using one of the following associated functions: [INFO] [stdout] String::new [INFO] [stdout] String::with_capacity [INFO] [stdout] String::try_with_capacity [INFO] [stdout] String::from_utf8 [INFO] [stdout] and 9 others [INFO] [stdout] --> /rustc/f609b7e0586f81fefb3523e3e17adf779ac416be/library/alloc/src/string.rs:445:5 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0615]: attempted to take value of method `len` on type `String` [INFO] [stdout] --> src/main.rs:104:20 [INFO] [stdout] | [INFO] [stdout] 104 | let length = s.len;//获取到传入字符串的长度 [INFO] [stdout] | ^^^ method, not a field [INFO] [stdout] | [INFO] [stdout] help: use parentheses to call the method [INFO] [stdout] | [INFO] [stdout] 104 | let length = s.len();//获取到传入字符串的长度 [INFO] [stdout] | ++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0615]: attempted to take value of method `len` on type `String` [INFO] [stdout] --> src/main.rs:104:20 [INFO] [stdout] | [INFO] [stdout] 104 | let length = s.len;//获取到传入字符串的长度 [INFO] [stdout] | ^^^ method, not a field [INFO] [stdout] | [INFO] [stdout] help: use parentheses to call the method [INFO] [stdout] | [INFO] [stdout] 104 | let length = s.len();//获取到传入字符串的长度 [INFO] [stdout] | ++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0515]: cannot return reference to local variable `k` [INFO] [stdout] --> src/main.rs:125:5 [INFO] [stdout] | [INFO] [stdout] 125 | &k//返回k的引用，但是已经出了k的作用域，所以引用将会指向一个已经被释放的内存 [INFO] [stdout] | ^^ returns a reference to data owned by the current function [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0515]: cannot return reference to local variable `k` [INFO] [stdout] --> src/main.rs:125:5 [INFO] [stdout] | [INFO] [stdout] 125 | &k//返回k的引用，但是已经出了k的作用域，所以引用将会指向一个已经被释放的内存 [INFO] [stdout] | ^^ returns a reference to data owned by the current function [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 5 previous errors [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] Some errors have detailed explanations: E0106, E0515, E0599, E0615. [INFO] [stdout] [INFO] [stdout] For more information about an error, try `rustc --explain E0106`. [INFO] [stdout] [INFO] [stdout] error: aborting due to 5 previous errors [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] Some errors have detailed explanations: E0106, E0515, E0599, E0615. [INFO] [stdout] [INFO] [stdout] For more information about an error, try `rustc --explain E0106`. [INFO] [stdout] [INFO] [stderr] error: could not compile `Scpoes` (bin "Scpoes") due to 6 previous errors [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stderr] error: could not compile `Scpoes` (bin "Scpoes" test) due to 6 previous errors [INFO] running `Command { std: "docker" "inspect" "b66a9a2ced2cc60deb27c3bf784f42b12bdb1f2c8c558d7bc46ef78506968987", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "b66a9a2ced2cc60deb27c3bf784f42b12bdb1f2c8c558d7bc46ef78506968987", kill_on_drop: false }` [INFO] [stdout] b66a9a2ced2cc60deb27c3bf784f42b12bdb1f2c8c558d7bc46ef78506968987