[INFO] cloning 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" "clone" "--bare" "https://github.com/Nalleyer/rust_99_problem" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNalleyer%2Frust_99_problem", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNalleyer%2Frust_99_problem'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 963a80b26b71b2cb375922c8d99b1096e715d0e5 [INFO] checking Nalleyer/rust_99_problem against try#81275a1445c7502a974118e0c69b795ab60be991 for pr-80243 [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 81275a1445c7502a974118e0c69b795ab60be991 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+81275a1445c7502a974118e0c69b795ab60be991" "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" "+81275a1445c7502a974118e0c69b795ab60be991" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded thread_local v0.3.6 [INFO] [stderr] Downloaded rand_os v0.1.3 [INFO] [stderr] Downloaded lazy_static v1.3.0 [INFO] [stderr] Downloaded bitflags v1.0.4 [INFO] [stderr] Downloaded aho-corasick v0.6.10 [INFO] [stderr] Downloaded memchr v2.2.0 [INFO] [stderr] Downloaded fuchsia-cprng v0.1.1 [INFO] [stderr] Downloaded libc v0.2.50 [INFO] [stderr] Downloaded quickcheck_macros v0.8.0 [INFO] [stderr] Downloaded syn v0.15.29 [INFO] [stderr] Downloaded cfg-if v0.1.7 [INFO] [stderr] Downloaded env_logger v0.6.1 [INFO] [stderr] Downloaded rand_core v0.3.1 [INFO] [stderr] Downloaded autocfg v0.1.2 [INFO] [stderr] Downloaded quickcheck v0.8.2 [INFO] [stderr] Downloaded rand_isaac v0.1.1 [INFO] [stderr] Downloaded regex-syntax v0.6.5 [INFO] [stderr] Downloaded quote v0.6.11 [INFO] [stderr] Downloaded utf8-ranges v1.0.2 [INFO] [stderr] Downloaded log v0.4.6 [INFO] [stderr] Downloaded rand_core v0.4.0 [INFO] [stderr] Downloaded regex v1.1.2 [INFO] [stderr] Downloaded winapi v0.3.6 [INFO] [stderr] Downloaded ucd-util v0.1.3 [INFO] [stderr] Downloaded rand_chacha v0.1.1 [INFO] [stderr] Downloaded rand_jitter v0.1.3 [INFO] [stderr] Downloaded rand_hc v0.1.0 [INFO] [stderr] Downloaded rand_xorshift v0.1.1 [INFO] [stderr] Downloaded rand v0.6.5 [INFO] [stderr] Downloaded rdrand v0.4.0 [INFO] [stderr] Downloaded proc-macro2 v0.4.27 [INFO] [stderr] Downloaded rand_pcg v0.1.2 [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" "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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+81275a1445c7502a974118e0c69b795ab60be991" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 738d226ee94c26852d355020b44bc434aa7389d25caf640b35794cc611681002 [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" "738d226ee94c26852d355020b44bc434aa7389d25caf640b35794cc611681002", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "738d226ee94c26852d355020b44bc434aa7389d25caf640b35794cc611681002", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "738d226ee94c26852d355020b44bc434aa7389d25caf640b35794cc611681002", kill_on_drop: false }` [INFO] [stdout] 738d226ee94c26852d355020b44bc434aa7389d25caf640b35794cc611681002 [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" "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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+81275a1445c7502a974118e0c69b795ab60be991" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] cda5e42b2d7694f4ec9ec0d3cae96a8dab188bbfc55c84084cf33c05e42708c7 [INFO] running `Command { std: "docker" "start" "-a" "cda5e42b2d7694f4ec9ec0d3cae96a8dab188bbfc55c84084cf33c05e42708c7", kill_on_drop: false }` [INFO] [stderr] Compiling memchr v2.2.0 [INFO] [stderr] Compiling proc-macro2 v0.4.27 [INFO] [stderr] Compiling regex v1.1.2 [INFO] [stderr] Compiling unicode-xid v0.1.0 [INFO] [stderr] Checking lazy_static v1.3.0 [INFO] [stderr] Checking cfg-if v0.1.7 [INFO] [stderr] Compiling syn v0.15.29 [INFO] [stderr] Checking regex-syntax v0.6.5 [INFO] [stderr] Checking log v0.4.6 [INFO] [stderr] Checking thread_local v0.3.6 [INFO] [stderr] Checking aho-corasick v0.6.10 [INFO] [stderr] Compiling quote v0.6.11 [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: 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] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 27.49s [INFO] running `Command { std: "docker" "inspect" "cda5e42b2d7694f4ec9ec0d3cae96a8dab188bbfc55c84084cf33c05e42708c7", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "cda5e42b2d7694f4ec9ec0d3cae96a8dab188bbfc55c84084cf33c05e42708c7", kill_on_drop: false }` [INFO] [stdout] cda5e42b2d7694f4ec9ec0d3cae96a8dab188bbfc55c84084cf33c05e42708c7