[INFO] updating cached repository https://github.com/VengeQ/rust_algo [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] 05a0eb756d4feeece07da28f53db9cc4dc9a2ced [INFO] checking VengeQ/rust_algo against master#45d050cde277b22a755847338f2acc2c7b834141 for pr-71393 [INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FVengeQ%2Frust_algo" "/workspace/builds/worker-9/source"` [INFO] [stderr] Cloning into '/workspace/builds/worker-9/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/VengeQ/rust_algo on toolchain 45d050cde277b22a755847338f2acc2c7b834141 [INFO] running `"/workspace/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started tweaking git repo https://github.com/VengeQ/rust_algo [INFO] removed path dependency graph from git repo https://github.com/VengeQ/rust_algo [INFO] removed path dependency sorts from git repo https://github.com/VengeQ/rust_algo [INFO] finished tweaking git repo https://github.com/VengeQ/rust_algo [INFO] tweaked toml for git repo https://github.com/VengeQ/rust_algo written to /workspace/builds/worker-9/source/Cargo.toml [INFO] crate git repo https://github.com/VengeQ/rust_algo already has a lockfile, it will not be regenerated [INFO] running `"/workspace/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] [stderr] warning: dependency (graph) specified without providing a local path, Git repository, or version to use. This will be considered an error in future versions [INFO] [stderr] warning: dependency (sorts) specified without providing a local path, Git repository, or version to use. This will be considered an error in future versions [INFO] [stderr] Updating crates.io index [INFO] [stderr] error: the lock file /workspace/builds/worker-9/source/Cargo.lock needs to be updated but --locked was passed to prevent this [INFO] [stderr] If you want to try to generate the lock file without accessing the network, use the --offline flag. [INFO] the lockfile is outdated, regenerating it [INFO] running `"/workspace/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"` [INFO] running `"/workspace/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] [stderr] warning: dependency (graph) specified without providing a local path, Git repository, or version to use. This will be considered an error in future versions [INFO] [stderr] warning: dependency (sorts) specified without providing a local path, Git repository, or version to use. This will be considered an error in future versions [INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "+45d050cde277b22a755847338f2acc2c7b834141" "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] f95b91000ba351940ad647f35e9b160572fe34c513a7e71cda9fd2757ecd1e31 [INFO] running `"docker" "start" "-a" "f95b91000ba351940ad647f35e9b160572fe34c513a7e71cda9fd2757ecd1e31"` [INFO] [stderr] warning: dependency (graph) specified without providing a local path, Git repository, or version to use. This will be considered an error in future versions [INFO] [stderr] warning: dependency (sorts) specified without providing a local path, Git repository, or version to use. This will be considered an error in future versions [INFO] [stderr] Compiling autocfg v1.0.0 [INFO] [stderr] Checking rpds v0.6.0 [INFO] [stderr] Checking graph v0.0.2 [INFO] [stderr] Checking sorts v0.6.1 [INFO] [stderr] Compiling num-traits v0.2.11 [INFO] [stderr] Checking rust_alghs v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] warning: unused import: `std::collections::VecDeque` [INFO] [stderr] --> src/main.rs:5:5 [INFO] [stderr] | [INFO] [stderr] 5 | use std::collections::VecDeque; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused import: `Stack` [INFO] [stderr] --> src/main.rs:6:20 [INFO] [stderr] | [INFO] [stderr] 6 | use rpds::{Vector, Stack}; [INFO] [stderr] | ^^^^^ [INFO] [stderr] [INFO] [stderr] warning: type `option_node` should have an upper camel case name [INFO] [stderr] --> src/main.rs:44:6 [INFO] [stderr] | [INFO] [stderr] 44 | type option_node = Option>>; [INFO] [stderr] | ^^^^^^^^^^^ help: convert the identifier to upper camel case: `OptionNode` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(non_camel_case_types)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::collections::VecDeque` [INFO] [stderr] --> src/main.rs:5:5 [INFO] [stderr] | [INFO] [stderr] 5 | use std::collections::VecDeque; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused import: `Stack` [INFO] [stderr] --> src/main.rs:6:20 [INFO] [stderr] | [INFO] [stderr] 6 | use rpds::{Vector, Stack}; [INFO] [stderr] | ^^^^^ [INFO] [stderr] [INFO] [stderr] warning: type `option_node` should have an upper camel case name [INFO] [stderr] --> src/main.rs:44:6 [INFO] [stderr] | [INFO] [stderr] 44 | type option_node = Option>>; [INFO] [stderr] | ^^^^^^^^^^^ help: convert the identifier to upper camel case: `OptionNode` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(non_camel_case_types)]` on by default [INFO] [stderr] [INFO] [stderr] warning: bounds on generic parameters are not enforced in type aliases [INFO] [stderr] --> src/main.rs:44:21 [INFO] [stderr] | [INFO] [stderr] 44 | type option_node = Option>>; [INFO] [stderr] | ^^^^^^^^^^ ^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(type_alias_bounds)]` on by default [INFO] [stderr] help: the bound will not be checked when the type alias is used, and should be removed [INFO] [stderr] | [INFO] [stderr] 44 | type option_node = Option>>; [INFO] [stderr] | -- [INFO] [stderr] [INFO] [stderr] warning: 4 warnings emitted [INFO] [stderr] [INFO] [stderr] warning: value assigned to `index` is never read [INFO] [stderr] --> tests/brackets_test.rs:15:21 [INFO] [stderr] | [INFO] [stderr] 15 | index = brackets.len(); [INFO] [stderr] | ^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_assignments)]` on by default [INFO] [stderr] = help: maybe it is overwritten before being read? [INFO] [stderr] [INFO] [stderr] warning: value assigned to `index` is never read [INFO] [stderr] --> tests/brackets_test.rs:22:29 [INFO] [stderr] | [INFO] [stderr] 22 | ... index = brackets.len(); [INFO] [stderr] | ^^^^^ [INFO] [stderr] | [INFO] [stderr] = help: maybe it is overwritten before being read? [INFO] [stderr] [INFO] [stderr] warning: field is never read: `a` [INFO] [stderr] --> tests/storing_efficiently.rs:9:5 [INFO] [stderr] | [INFO] [stderr] 9 | a: u32, [INFO] [stderr] | ^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: field is never read: `b` [INFO] [stderr] --> tests/storing_efficiently.rs:11:5 [INFO] [stderr] | [INFO] [stderr] 11 | b: u32, [INFO] [stderr] | ^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: field is never read: `c` [INFO] [stderr] --> tests/storing_efficiently.rs:13:5 [INFO] [stderr] | [INFO] [stderr] 13 | c: u16, //2 ??? [INFO] [stderr] | ^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: constant item is never used: `U16_ADD_DOUBLE_U32_SIZE` [INFO] [stderr] --> tests/storing_efficiently.rs:20:1 [INFO] [stderr] | [INFO] [stderr] 20 | const U16_ADD_DOUBLE_U32_SIZE: usize = 2 * mem::size_of::() + mem::size_of::(); //10 [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: bounds on generic parameters are not enforced in type aliases [INFO] [stderr] --> src/main.rs:44:21 [INFO] [stderr] | [INFO] [stderr] 44 | type option_node = Option>>; [INFO] [stderr] | ^^^^^^^^^^ ^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(type_alias_bounds)]` on by default [INFO] [stderr] help: the bound will not be checked when the type alias is used, and should be removed [INFO] [stderr] | [INFO] [stderr] 44 | type option_node = Option>>; [INFO] [stderr] | -- [INFO] [stderr] [INFO] [stderr] warning: 2 warnings emitted [INFO] [stderr] [INFO] [stderr] warning: 4 warnings emitted [INFO] [stderr] [INFO] [stderr] warning: 4 warnings emitted [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 6.18s [INFO] running `"docker" "inspect" "f95b91000ba351940ad647f35e9b160572fe34c513a7e71cda9fd2757ecd1e31"` [INFO] running `"docker" "rm" "-f" "f95b91000ba351940ad647f35e9b160572fe34c513a7e71cda9fd2757ecd1e31"` [INFO] [stdout] f95b91000ba351940ad647f35e9b160572fe34c513a7e71cda9fd2757ecd1e31