[INFO] updating cached repository https://github.com/Nalleyer/rust_99_problem [INFO] running `Command { std: "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", kill_on_drop: false }` [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 963a80b26b71b2cb375922c8d99b1096e715d0e5 [INFO] checking Nalleyer/rust_99_problem against master#1557fb031b272b4c5bfcc7de5df7eddc7b36a584 for pr-73166 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNalleyer%2Frust_99_problem" "/workspace/builds/worker-8/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/Nalleyer/rust_99_problem on toolchain 1557fb031b272b4c5bfcc7de5df7eddc7b36a584 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1557fb031b272b4c5bfcc7de5df7eddc7b36a584" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/Nalleyer/rust_99_problem [INFO] finished tweaking git repo https://github.com/Nalleyer/rust_99_problem [INFO] tweaked toml for git repo https://github.com/Nalleyer/rust_99_problem written to /workspace/builds/worker-8/source/Cargo.toml [INFO] crate git repo https://github.com/Nalleyer/rust_99_problem already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1557fb031b272b4c5bfcc7de5df7eddc7b36a584" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+1557fb031b272b4c5bfcc7de5df7eddc7b36a584" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 22528927cace8fc1e5ccd896ed0f6acb4f339f6a563096c1d7a6bdae9be30ef2 [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" "22528927cace8fc1e5ccd896ed0f6acb4f339f6a563096c1d7a6bdae9be30ef2", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "22528927cace8fc1e5ccd896ed0f6acb4f339f6a563096c1d7a6bdae9be30ef2", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "22528927cace8fc1e5ccd896ed0f6acb4f339f6a563096c1d7a6bdae9be30ef2", kill_on_drop: false }` [INFO] [stdout] 22528927cace8fc1e5ccd896ed0f6acb4f339f6a563096c1d7a6bdae9be30ef2 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+1557fb031b272b4c5bfcc7de5df7eddc7b36a584" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] ce8d0b9f039ce452a588ebab9142bbfe10507f281d7c1fd34d32d2bfab70ae42 [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" "ce8d0b9f039ce452a588ebab9142bbfe10507f281d7c1fd34d32d2bfab70ae42", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.50 [INFO] [stderr] Compiling regex v1.1.2 [INFO] [stderr] Compiling syn v0.15.29 [INFO] [stderr] Checking thread_local v0.3.6 [INFO] [stderr] Checking regex-syntax v0.6.5 [INFO] [stderr] Compiling proc-macro2 v0.4.27 [INFO] [stderr] Compiling quote v0.6.11 [INFO] [stderr] Checking rand_os v0.1.3 [INFO] [stderr] Checking rand v0.6.5 [INFO] [stderr] Checking env_logger v0.6.1 [INFO] [stderr] Checking quickcheck v0.8.2 [INFO] [stderr] Compiling quickcheck_macros v0.8.0 [INFO] [stderr] Checking rust_99_problem v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused `#[macro_use]` import [INFO] [stdout] --> src/main.rs:4:13 [INFO] [stdout] | [INFO] [stdout] 4 | #[macro_use(quickcheck)] [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `x` [INFO] [stdout] --> src/solves/p7.rs:14:24 [INFO] [stdout] | [INFO] [stdout] 14 | Node::Item(x) => vec!(node.clone()), [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: `is_item` [INFO] [stdout] --> src/common.rs:14:13 [INFO] [stdout] | [INFO] [stdout] 14 | let is_item: bool = g.gen(); [INFO] [stdout] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_is_item` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `x` [INFO] [stdout] --> src/solves/p7.rs:14:24 [INFO] [stdout] | [INFO] [stdout] 14 | Node::Item(x) => vec!(node.clone()), [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: `is_item` [INFO] [stdout] --> src/common.rs:14:13 [INFO] [stdout] | [INFO] [stdout] 14 | let is_item: bool = g.gen(); [INFO] [stdout] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_is_item` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `flat` [INFO] [stdout] --> src/solves/p7.rs:11:8 [INFO] [stdout] | [INFO] [stdout] 11 | pub fn flat(ls: &List) -> List { [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 26.02s [INFO] running `Command { std: "docker" "inspect" "ce8d0b9f039ce452a588ebab9142bbfe10507f281d7c1fd34d32d2bfab70ae42", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "ce8d0b9f039ce452a588ebab9142bbfe10507f281d7c1fd34d32d2bfab70ae42", kill_on_drop: false }` [INFO] [stdout] ce8d0b9f039ce452a588ebab9142bbfe10507f281d7c1fd34d32d2bfab70ae42