[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-63247/sources/master#452087b4bf18cece2d52d7cd8c9147195e5404bf/gh/Nalleyer/rust_99_problem"` [INFO] [stderr] Cloning into 'work/ex/pr-63247/sources/master#452087b4bf18cece2d52d7cd8c9147195e5404bf/gh/Nalleyer/rust_99_problem'... [INFO] [stderr] done. [INFO] running `"git" "clone" "work/cache/sources/gh/Nalleyer/rust_99_problem" "work/ex/pr-63247/sources/try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab/gh/Nalleyer/rust_99_problem"` [INFO] [stderr] Cloning into 'work/ex/pr-63247/sources/try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab/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#452087b4bf18cece2d52d7cd8c9147195e5404bf [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+452087b4bf18cece2d52d7cd8c9147195e5404bf-alt" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] validating manifest of Nalleyer/rust_99_problem on toolchain try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+757dacae0a9f1b46b3ab58a1f1232332e8fc7dab-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-63247/sources/master#452087b4bf18cece2d52d7cd8c9147195e5404bf/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-63247/sources/try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab/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" "+452087b4bf18cece2d52d7cd8c9147195e5404bf-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+757dacae0a9f1b46b3ab58a1f1232332e8fc7dab-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] checking Nalleyer/rust_99_problem against master#452087b4bf18cece2d52d7cd8c9147195e5404bf for pr-63247 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-63247/worker-3/master#452087b4bf18cece2d52d7cd8c9147195e5404bf:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-63247/sources/master#452087b4bf18cece2d52d7cd8c9147195e5404bf/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" "+452087b4bf18cece2d52d7cd8c9147195e5404bf-alt" "check" "--frozen" "--all" "--all-targets"` [INFO] [stdout] 8a6052cab281823dde7d385a19f7d74eb49121ff41d2019333a37436c4aca97b [INFO] running `"docker" "start" "-a" "8a6052cab281823dde7d385a19f7d74eb49121ff41d2019333a37436c4aca97b"` [INFO] [stderr] Compiling memchr v2.2.0 [INFO] [stderr] Compiling libc v0.2.50 [INFO] [stderr] Compiling proc-macro2 v0.4.27 [INFO] [stderr] Compiling autocfg v0.1.2 [INFO] [stderr] Checking rand_core v0.4.0 [INFO] [stderr] Compiling regex v1.1.2 [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 utf8-ranges v1.0.2 [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 rand_core v0.3.1 [INFO] [stderr] Checking rand_jitter v0.1.3 [INFO] [stderr] Checking rand_isaac v0.1.1 [INFO] [stderr] Checking rand_xorshift v0.1.1 [INFO] [stderr] Checking rand_hc v0.1.0 [INFO] [stderr] Compiling rand_pcg v0.1.2 [INFO] [stderr] Compiling rand_chacha v0.1.1 [INFO] [stderr] Compiling rand v0.6.5 [INFO] [stderr] Checking aho-corasick v0.6.10 [INFO] [stderr] Compiling quote v0.6.11 [INFO] [stderr] Checking rand_os v0.1.3 [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: 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] Finished dev [unoptimized + debuginfo] target(s) in 36.36s [INFO] running `"docker" "inspect" "8a6052cab281823dde7d385a19f7d74eb49121ff41d2019333a37436c4aca97b"` [INFO] running `"docker" "rm" "-f" "8a6052cab281823dde7d385a19f7d74eb49121ff41d2019333a37436c4aca97b"` [INFO] [stdout] 8a6052cab281823dde7d385a19f7d74eb49121ff41d2019333a37436c4aca97b