[INFO] updating cached repository https://github.com/r31oad3d/rust_by_example [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] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] 57432d1a97ea28a3f410bddd4b42eec7e8dc9b5a [INFO] checking r31oad3d/rust_by_example against try#1a608893c03d7722effeb0058e82770bd36b4b3c for pr-66504-1 [INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fr31oad3d%2Frust_by_example" "/workspace/builds/worker-5/source"` [INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/r31oad3d/rust_by_example on toolchain 1a608893c03d7722effeb0058e82770bd36b4b3c [INFO] running `"/workspace/cargo-home/bin/cargo" "+1a608893c03d7722effeb0058e82770bd36b4b3c" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started tweaking git repo https://github.com/r31oad3d/rust_by_example [INFO] finished tweaking git repo https://github.com/r31oad3d/rust_by_example [INFO] tweaked toml for git repo https://github.com/r31oad3d/rust_by_example written to /workspace/builds/worker-5/source/Cargo.toml [INFO] crate git repo https://github.com/r31oad3d/rust_by_example already has a lockfile, it will not be regenerated [INFO] running `"/workspace/cargo-home/bin/cargo" "+1a608893c03d7722effeb0058e82770bd36b4b3c" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "+1a608893c03d7722effeb0058e82770bd36b4b3c" "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] 874dd72740f1876149bcd8b1482e153a330748082393e9fd240b87915835406b [INFO] running `"docker" "start" "-a" "874dd72740f1876149bcd8b1482e153a330748082393e9fd240b87915835406b"` [INFO] [stderr] Checking rust_by_example v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] warning: unused import: `std::any::Any` [INFO] [stderr] --> src/mods/mod7.rs:1:5 [INFO] [stderr] | [INFO] [stderr] 1 | use std::any::Any; [INFO] [stderr] | ^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::any::Any` [INFO] [stderr] --> src/dao/test1.rs:3:5 [INFO] [stderr] | [INFO] [stderr] 3 | use std::any::Any; [INFO] [stderr] | ^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `core::cmp` [INFO] [stderr] --> src/main.rs:13:5 [INFO] [stderr] | [INFO] [stderr] 13 | use core::cmp; [INFO] [stderr] | ^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: `...` range patterns are deprecated [INFO] [stderr] --> src/main.rs:196:14 [INFO] [stderr] | [INFO] [stderr] 196 | n @ 1...12 => println!("I'm a child of age {:?}", n), [INFO] [stderr] | ^^^ help: use `..=` for an inclusive range [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(ellipsis_inclusive_range_patterns)]` on by default [INFO] [stderr] [INFO] [stderr] warning: `...` range patterns are deprecated [INFO] [stderr] --> src/main.rs:197:15 [INFO] [stderr] | [INFO] [stderr] 197 | n @ 13...19 => println!("I'm a teen of age {:?}", n), [INFO] [stderr] | ^^^ help: use `..=` for an inclusive range [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::any::Any` [INFO] [stderr] --> src/mods/mod7.rs:1:5 [INFO] [stderr] | [INFO] [stderr] 1 | use std::any::Any; [INFO] [stderr] | ^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::any::Any` [INFO] [stderr] --> src/dao/test1.rs:3:5 [INFO] [stderr] | [INFO] [stderr] 3 | use std::any::Any; [INFO] [stderr] | ^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `core::cmp` [INFO] [stderr] --> src/main.rs:13:5 [INFO] [stderr] | [INFO] [stderr] 13 | use core::cmp; [INFO] [stderr] | ^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: `...` range patterns are deprecated [INFO] [stderr] --> src/main.rs:196:14 [INFO] [stderr] | [INFO] [stderr] 196 | n @ 1...12 => println!("I'm a child of age {:?}", n), [INFO] [stderr] | ^^^ help: use `..=` for an inclusive range [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(ellipsis_inclusive_range_patterns)]` on by default [INFO] [stderr] [INFO] [stderr] warning: `...` range patterns are deprecated [INFO] [stderr] --> src/main.rs:197:15 [INFO] [stderr] | [INFO] [stderr] 197 | n @ 13...19 => println!("I'm a teen of age {:?}", n), [INFO] [stderr] | ^^^ help: use `..=` for an inclusive range [INFO] [stderr] [INFO] [stderr] warning: unused variable: `nanosecond` [INFO] [stderr] --> src/main.rs:85:9 [INFO] [stderr] | [INFO] [stderr] 85 | let nanosecond: NanoSecond = 6 as aa; [INFO] [stderr] | ^^^^^^^^^^ help: consider prefixing with an underscore: `_nanosecond` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `ss1` [INFO] [stderr] --> src/mods/mod6.rs:54:13 [INFO] [stderr] | [INFO] [stderr] 54 | let ss1 = S1 {a}; [INFO] [stderr] | ^^^ help: consider prefixing with an underscore: `_ss1` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `p` [INFO] [stderr] --> src/dao/test1.rs:9:9 [INFO] [stderr] | [INFO] [stderr] 9 | let p = &mut x; [INFO] [stderr] | ^ help: consider prefixing with an underscore: `_p` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `hbooks` [INFO] [stderr] --> src/dao/test1.rs:81:13 [INFO] [stderr] | [INFO] [stderr] 81 | let mut hbooks = std::collections::HashSet::::new(); [INFO] [stderr] | ^^^^^^ help: consider prefixing with an underscore: `_hbooks` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `bbooks` [INFO] [stderr] --> src/dao/test1.rs:82:13 [INFO] [stderr] | [INFO] [stderr] 82 | let mut bbooks = std::collections::BTreeSet::::new(); [INFO] [stderr] | ^^^^^^ help: consider prefixing with an underscore: `_bbooks` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `nanosecond` [INFO] [stderr] --> src/main.rs:85:9 [INFO] [stderr] | [INFO] [stderr] 85 | let nanosecond: NanoSecond = 6 as aa; [INFO] [stderr] | ^^^^^^^^^^ help: consider prefixing with an underscore: `_nanosecond` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `ss1` [INFO] [stderr] --> src/mods/mod6.rs:54:13 [INFO] [stderr] | [INFO] [stderr] 54 | let ss1 = S1 {a}; [INFO] [stderr] | ^^^ help: consider prefixing with an underscore: `_ss1` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `p` [INFO] [stderr] --> src/dao/test1.rs:9:9 [INFO] [stderr] | [INFO] [stderr] 9 | let p = &mut x; [INFO] [stderr] | ^ help: consider prefixing with an underscore: `_p` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `hbooks` [INFO] [stderr] --> src/dao/test1.rs:81:13 [INFO] [stderr] | [INFO] [stderr] 81 | let mut hbooks = std::collections::HashSet::::new(); [INFO] [stderr] | ^^^^^^ help: consider prefixing with an underscore: `_hbooks` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `bbooks` [INFO] [stderr] --> src/dao/test1.rs:82:13 [INFO] [stderr] | [INFO] [stderr] 82 | let mut bbooks = std::collections::BTreeSet::::new(); [INFO] [stderr] | ^^^^^^ help: consider prefixing with an underscore: `_bbooks` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/dao/test1.rs:81:9 [INFO] [stderr] | [INFO] [stderr] 81 | let mut hbooks = std::collections::HashSet::::new(); [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: variable does not need to be mutable [INFO] [stderr] --> src/dao/test1.rs:82:9 [INFO] [stderr] | [INFO] [stderr] 82 | let mut bbooks = std::collections::BTreeSet::::new(); [INFO] [stderr] | ----^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: field is never read: `a` [INFO] [stderr] --> src/mods/mod6.rs:51:13 [INFO] [stderr] | [INFO] [stderr] 51 | a: &'a i32, [INFO] [stderr] | ^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: function is never used: `get_a_number` [INFO] [stderr] --> src/dao/test1.rs:36:8 [INFO] [stderr] | [INFO] [stderr] 36 | fn get_a_number() -> Option { [INFO] [stderr] | ^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: type alias is never used: `Inch` [INFO] [stderr] --> src/main.rs:81:5 [INFO] [stderr] | [INFO] [stderr] 81 | type Inch = u64; [INFO] [stderr] | ^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: the feature `never_type` has been stable since 1.41.0 and no longer requires an attribute to enable [INFO] [stderr] --> src/main.rs:1:12 [INFO] [stderr] | [INFO] [stderr] 1 | #![feature(never_type)] [INFO] [stderr] | ^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(stable_features)]` on by default [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/dao/test1.rs:81:9 [INFO] [stderr] | [INFO] [stderr] 81 | let mut hbooks = std::collections::HashSet::::new(); [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: variable does not need to be mutable [INFO] [stderr] --> src/dao/test1.rs:82:9 [INFO] [stderr] | [INFO] [stderr] 82 | let mut bbooks = std::collections::BTreeSet::::new(); [INFO] [stderr] | ----^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: field is never read: `a` [INFO] [stderr] --> src/mods/mod6.rs:51:13 [INFO] [stderr] | [INFO] [stderr] 51 | a: &'a i32, [INFO] [stderr] | ^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: function is never used: `get_a_number` [INFO] [stderr] --> src/dao/test1.rs:36:8 [INFO] [stderr] | [INFO] [stderr] 36 | fn get_a_number() -> Option { [INFO] [stderr] | ^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: the feature `never_type` has been stable since 1.41.0 and no longer requires an attribute to enable [INFO] [stderr] --> src/main.rs:1:12 [INFO] [stderr] | [INFO] [stderr] 1 | #![feature(never_type)] [INFO] [stderr] | ^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(stable_features)]` on by default [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 1.91s [INFO] running `"docker" "inspect" "874dd72740f1876149bcd8b1482e153a330748082393e9fd240b87915835406b"` [INFO] running `"docker" "rm" "-f" "874dd72740f1876149bcd8b1482e153a330748082393e9fd240b87915835406b"` [INFO] [stdout] 874dd72740f1876149bcd8b1482e153a330748082393e9fd240b87915835406b