[INFO] cloning repository https://github.com/bookinstock/rust_example [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/bookinstock/rust_example" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbookinstock%2Frust_example", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbookinstock%2Frust_example'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] c83d144f2d500cd60a59da5019b4bc5ca7d2d36f [INFO] checking bookinstock/rust_example against master#195ad4830e11a544391abe296b146450dea8411b for pr-82781 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbookinstock%2Frust_example" "/workspace/builds/worker-7/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/bookinstock/rust_example on toolchain 195ad4830e11a544391abe296b146450dea8411b [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+195ad4830e11a544391abe296b146450dea8411b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/bookinstock/rust_example [INFO] finished tweaking git repo https://github.com/bookinstock/rust_example [INFO] tweaked toml for git repo https://github.com/bookinstock/rust_example written to /workspace/builds/worker-7/source/Cargo.toml [INFO] crate git repo https://github.com/bookinstock/rust_example already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+195ad4830e11a544391abe296b146450dea8411b" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "rustops/crates-build-env@sha256:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+195ad4830e11a544391abe296b146450dea8411b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 8df2c8d5aebf94f18b010491999100d44f739aebd7937dd80111a2f460de12f5 [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "8df2c8d5aebf94f18b010491999100d44f739aebd7937dd80111a2f460de12f5", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "8df2c8d5aebf94f18b010491999100d44f739aebd7937dd80111a2f460de12f5", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "8df2c8d5aebf94f18b010491999100d44f739aebd7937dd80111a2f460de12f5", kill_on_drop: false }` [INFO] [stdout] 8df2c8d5aebf94f18b010491999100d44f739aebd7937dd80111a2f460de12f5 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+195ad4830e11a544391abe296b146450dea8411b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 69eb2e605a45e50e084a0cd27216f691797f083f5c9bf2a25fc87bd9cd6c93e1 [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "69eb2e605a45e50e084a0cd27216f691797f083f5c9bf2a25fc87bd9cd6c93e1", kill_on_drop: false }` [INFO] [stderr] Checking rust_example v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] error[E0601]: `main` function not found in crate `test` [INFO] [stdout] --> src/bin/test.rs:13:4 [INFO] [stdout] | [INFO] [stdout] 13 | */ [INFO] [stdout] | ^ consider adding a `main` function to `src/bin/test.rs` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to previous error [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0601`. [INFO] [stdout] [INFO] [stderr] error: could not compile `rust_example` [INFO] [stderr] [INFO] [stderr] To learn more, run the command again with --verbose. [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stdout] error[E0601]: `main` function not found in crate `other` [INFO] [stdout] --> src/bin/other.rs:1:2 [INFO] [stdout] | [INFO] [stdout] 1 | [INFO] [stdout] | ^ consider adding a `main` function to `src/bin/other.rs` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to previous error [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0601`. [INFO] [stdout] [INFO] [stdout] warning: function is never used: `test_literal` [INFO] [stdout] --> src/bin/pattern_matching.rs:113:4 [INFO] [stdout] | [INFO] [stdout] 113 | fn test_literal() {} [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `test_array` [INFO] [stdout] --> src/bin/pattern_matching.rs:115:4 [INFO] [stdout] | [INFO] [stdout] 115 | fn test_array() {} [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `test_enum` [INFO] [stdout] --> src/bin/pattern_matching.rs:117:4 [INFO] [stdout] | [INFO] [stdout] 117 | fn test_enum() {} [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `test_stuct` [INFO] [stdout] --> src/bin/pattern_matching.rs:119:4 [INFO] [stdout] | [INFO] [stdout] 119 | fn test_stuct() {} [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `test_variable` [INFO] [stdout] --> src/bin/pattern_matching.rs:137:4 [INFO] [stdout] | [INFO] [stdout] 137 | fn test_variable() {} [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `test_wildcard` [INFO] [stdout] --> src/bin/pattern_matching.rs:139:4 [INFO] [stdout] | [INFO] [stdout] 139 | fn test_wildcard() {} [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `test_placeholder` [INFO] [stdout] --> src/bin/pattern_matching.rs:141:4 [INFO] [stdout] | [INFO] [stdout] 141 | fn test_placeholder() {} [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0601]: `main` function not found in crate `macro` [INFO] [stdout] --> src/bin/macro.rs:21:4 [INFO] [stdout] | [INFO] [stdout] 21 | */ [INFO] [stdout] | ^ consider adding a `main` function to `src/bin/macro.rs` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to previous error [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0601`. [INFO] [stdout] [INFO] [stdout] error[E0601]: `main` function not found in crate `std` [INFO] [stdout] --> src/bin/std.rs:64:4 [INFO] [stdout] | [INFO] [stdout] 64 | */ [INFO] [stdout] | ^ consider adding a `main` function to `src/bin/std.rs` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to previous error [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0601`. [INFO] [stdout] [INFO] [stdout] warning: 7 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `noisy_unused_variable` [INFO] [stdout] --> src/bin/var_binding.rs:26:9 [INFO] [stdout] | [INFO] [stdout] 26 | let noisy_unused_variable = 2u32; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_noisy_unused_variable` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `x` [INFO] [stdout] --> src/bin/scope.rs:88:9 [INFO] [stdout] | [INFO] [stdout] 88 | let x = ToDrop; [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: `ref_x` [INFO] [stdout] --> src/bin/scope.rs:401:13 [INFO] [stdout] | [INFO] [stdout] 401 | let ref_x = &x; [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_ref_x` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0601]: `main` function not found in crate `error` [INFO] [stdout] --> src/bin/error.rs:41:4 [INFO] [stdout] | [INFO] [stdout] 41 | */ [INFO] [stdout] | ^ consider adding a `main` function to `src/bin/error.rs` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to previous error [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0601`. [INFO] [stdout] [INFO] [stdout] warning: unused variable: `vec2` [INFO] [stdout] --> src/bin/function.rs:391:9 [INFO] [stdout] | [INFO] [stdout] 391 | let vec2 = vec![4, 5, 6]; [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_vec2` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/bin/scope.rs:405:13 [INFO] [stdout] | [INFO] [stdout] 405 | let mut ref_x = &mut x; [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: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `ps_ref` [INFO] [stdout] --> src/bin/scope.rs:444:4 [INFO] [stdout] | [INFO] [stdout] 444 | fn ps_ref() { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: this method call currently resolves to `<&[T; N] as IntoIterator>::into_iter` (due to autoref coercions), but that might change in the future when `IntoIterator` impls for arrays are added. [INFO] [stdout] --> src/bin/function.rs:431:16 [INFO] [stdout] | [INFO] [stdout] 431 | array2.into_iter().find(|&&x| x == 2) [INFO] [stdout] | ^^^^^^^^^ help: use `.iter()` instead of `.into_iter()` to avoid ambiguity: `iter` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(array_into_iter)]` on by default [INFO] [stdout] = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! [INFO] [stdout] = note: for more information, see issue #66145 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `vec2` [INFO] [stdout] --> src/bin/function.rs:391:9 [INFO] [stdout] | [INFO] [stdout] 391 | let vec2 = vec![4, 5, 6]; [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_vec2` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: this method call currently resolves to `<&[T; N] as IntoIterator>::into_iter` (due to autoref coercions), but that might change in the future when `IntoIterator` impls for arrays are added. [INFO] [stdout] --> src/bin/function.rs:431:16 [INFO] [stdout] | [INFO] [stdout] 431 | array2.into_iter().find(|&&x| x == 2) [INFO] [stdout] | ^^^^^^^^^ help: use `.iter()` instead of `.into_iter()` to avoid ambiguity: `iter` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(array_into_iter)]` on by default [INFO] [stdout] = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! [INFO] [stdout] = note: for more information, see issue #66145 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: build failed [INFO] running `Command { std: "docker" "inspect" "69eb2e605a45e50e084a0cd27216f691797f083f5c9bf2a25fc87bd9cd6c93e1", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "69eb2e605a45e50e084a0cd27216f691797f083f5c9bf2a25fc87bd9cd6c93e1", kill_on_drop: false }` [INFO] [stdout] 69eb2e605a45e50e084a0cd27216f691797f083f5c9bf2a25fc87bd9cd6c93e1