[INFO] updating cached repository Nalleyer/rust_99_problem [INFO] running `"git" "fetch" "--all"` [INFO] [stdout] Fetching origin [INFO] [stderr] From git://github.com/Nalleyer/rust_99_problem [INFO] [stderr] * branch HEAD -> FETCH_HEAD [INFO] running `"git" "clone" "work/cache/sources/gh/Nalleyer/rust_99_problem" "work/ex/pr-62507/sources/master#78ca1bda3522b14bc0336bc01dd1d49fdba2cda7/gh/Nalleyer/rust_99_problem"` [INFO] [stderr] Cloning into 'work/ex/pr-62507/sources/master#78ca1bda3522b14bc0336bc01dd1d49fdba2cda7/gh/Nalleyer/rust_99_problem'... [INFO] [stderr] done. [INFO] running `"git" "clone" "work/cache/sources/gh/Nalleyer/rust_99_problem" "work/ex/pr-62507/sources/try#18481b65f318e0b4b20c0fc61340054701719d6c/gh/Nalleyer/rust_99_problem"` [INFO] [stderr] Cloning into 'work/ex/pr-62507/sources/try#18481b65f318e0b4b20c0fc61340054701719d6c/gh/Nalleyer/rust_99_problem'... [INFO] [stderr] done. [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] 963a80b26b71b2cb375922c8d99b1096e715d0e5 [INFO] sha for GitHub repo Nalleyer/rust_99_problem: 963a80b26b71b2cb375922c8d99b1096e715d0e5 [INFO] validating manifest of Nalleyer/rust_99_problem on toolchain master#78ca1bda3522b14bc0336bc01dd1d49fdba2cda7 [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+78ca1bda3522b14bc0336bc01dd1d49fdba2cda7-alt" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] validating manifest of Nalleyer/rust_99_problem on toolchain try#18481b65f318e0b4b20c0fc61340054701719d6c [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+18481b65f318e0b4b20c0fc61340054701719d6c-alt" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started frobbing Nalleyer/rust_99_problem [INFO] finished frobbing Nalleyer/rust_99_problem [INFO] frobbed toml for Nalleyer/rust_99_problem written to work/ex/pr-62507/sources/master#78ca1bda3522b14bc0336bc01dd1d49fdba2cda7/gh/Nalleyer/rust_99_problem/Cargo.toml [INFO] started frobbing Nalleyer/rust_99_problem [INFO] finished frobbing Nalleyer/rust_99_problem [INFO] frobbed toml for Nalleyer/rust_99_problem written to work/ex/pr-62507/sources/try#18481b65f318e0b4b20c0fc61340054701719d6c/gh/Nalleyer/rust_99_problem/Cargo.toml [INFO] crate Nalleyer/rust_99_problem already has a lockfile, it will not be regenerated [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+78ca1bda3522b14bc0336bc01dd1d49fdba2cda7-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+18481b65f318e0b4b20c0fc61340054701719d6c-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] checking Nalleyer/rust_99_problem against master#78ca1bda3522b14bc0336bc01dd1d49fdba2cda7 for pr-62507 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-62507/worker-7/master#78ca1bda3522b14bc0336bc01dd1d49fdba2cda7:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-62507/sources/master#78ca1bda3522b14bc0336bc01dd1d49fdba2cda7/gh/Nalleyer/rust_99_problem:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+78ca1bda3522b14bc0336bc01dd1d49fdba2cda7-alt" "check" "--frozen" "--all" "--all-targets"` [INFO] [stdout] 249b27b141b82bfc6005f1bb1b76598b0d667ee906bbcf21c0cec4246384813b [INFO] running `"docker" "start" "-a" "249b27b141b82bfc6005f1bb1b76598b0d667ee906bbcf21c0cec4246384813b"` [INFO] [stderr] Compiling memchr v2.2.0 [INFO] [stderr] Compiling libc v0.2.50 [INFO] [stderr] Compiling autocfg v0.1.2 [INFO] [stderr] Compiling proc-macro2 v0.4.27 [INFO] [stderr] Checking ucd-util v0.1.3 [INFO] [stderr] Compiling regex v1.1.2 [INFO] [stderr] Compiling unicode-xid v0.1.0 [INFO] [stderr] Checking utf8-ranges v1.0.2 [INFO] [stderr] Checking cfg-if v0.1.7 [INFO] [stderr] Compiling syn v0.15.29 [INFO] [stderr] Checking thread_local v0.3.6 [INFO] [stderr] Checking rand_jitter v0.1.3 [INFO] [stderr] Checking regex-syntax v0.6.5 [INFO] [stderr] Checking log v0.4.6 [INFO] [stderr] Compiling rand_chacha v0.1.1 [INFO] [stderr] Compiling rand_pcg v0.1.2 [INFO] [stderr] Compiling rand v0.6.5 [INFO] [stderr] Checking aho-corasick v0.6.10 [INFO] [stderr] Checking rand_os v0.1.3 [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/crater/workdir) [INFO] [stderr] warning: unused `#[macro_use]` import [INFO] [stderr] --> src/main.rs:4:13 [INFO] [stderr] | [INFO] [stderr] 4 | #[macro_use(quickcheck)] [INFO] [stderr] | ^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_imports)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `x` [INFO] [stderr] --> src/solves/p7.rs:14:24 [INFO] [stderr] | [INFO] [stderr] 14 | Node::Item(x) => vec!(node.clone()), [INFO] [stderr] | ^ help: consider prefixing with an underscore: `_x` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_variables)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `is_item` [INFO] [stderr] --> src/common.rs:14:13 [INFO] [stderr] | [INFO] [stderr] 14 | let is_item: bool = g.gen(); [INFO] [stderr] | ^^^^^^^ help: consider prefixing with an underscore: `_is_item` [INFO] [stderr] [INFO] [stderr] warning: function is never used: `flat` [INFO] [stderr] --> src/solves/p7.rs:11:1 [INFO] [stderr] | [INFO] [stderr] 11 | pub fn flat(ls: &List) -> List { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(dead_code)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `x` [INFO] [stderr] --> src/solves/p7.rs:14:24 [INFO] [stderr] | [INFO] [stderr] 14 | Node::Item(x) => vec!(node.clone()), [INFO] [stderr] | ^ help: consider prefixing with an underscore: `_x` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_variables)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `is_item` [INFO] [stderr] --> src/common.rs:14:13 [INFO] [stderr] | [INFO] [stderr] 14 | let is_item: bool = g.gen(); [INFO] [stderr] | ^^^^^^^ help: consider prefixing with an underscore: `_is_item` [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 21.85s [INFO] running `"docker" "inspect" "249b27b141b82bfc6005f1bb1b76598b0d667ee906bbcf21c0cec4246384813b"` [INFO] running `"docker" "rm" "-f" "249b27b141b82bfc6005f1bb1b76598b0d667ee906bbcf21c0cec4246384813b"` [INFO] [stdout] 249b27b141b82bfc6005f1bb1b76598b0d667ee906bbcf21c0cec4246384813b