[INFO] updating cached repository lrssnn/words [INFO] running `"git" "fetch" "--all"` [INFO] [stdout] Fetching origin [INFO] [stderr] From git://github.com/lrssnn/words [INFO] [stderr] * branch HEAD -> FETCH_HEAD [INFO] running `"git" "clone" "work/cache/sources/gh/lrssnn/words" "work/ex/beta-1.37-6/sources/1.36.0/gh/lrssnn/words"` [INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/lrssnn/words'... [INFO] [stderr] done. [INFO] running `"git" "clone" "work/cache/sources/gh/lrssnn/words" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/lrssnn/words"` [INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/lrssnn/words'... [INFO] [stderr] done. [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] c9bbf2f364bd2055d3ab2e554ea030f55e787800 [INFO] sha for GitHub repo lrssnn/words: c9bbf2f364bd2055d3ab2e554ea030f55e787800 [INFO] validating manifest of lrssnn/words on toolchain 1.36.0 [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] validating manifest of lrssnn/words on toolchain beta-2019-07-23 [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started frobbing lrssnn/words [INFO] finished frobbing lrssnn/words [INFO] frobbed toml for lrssnn/words written to work/ex/beta-1.37-6/sources/1.36.0/gh/lrssnn/words/Cargo.toml [INFO] started frobbing lrssnn/words [INFO] finished frobbing lrssnn/words [INFO] frobbed toml for lrssnn/words written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/lrssnn/words/Cargo.toml [INFO] crate lrssnn/words already has a lockfile, it will not be regenerated [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] testing lrssnn/words against beta-2019-07-23 for beta-1.37-6 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-5/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/lrssnn/words:/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=warn" "-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" "+beta-2019-07-23" "build" "--frozen"` [INFO] [stdout] bb50b108f7c6a48cbab309fcbce2695b437e32222abdef4db208aa931d1cddc6 [INFO] running `"docker" "start" "-a" "bb50b108f7c6a48cbab309fcbce2695b437e32222abdef4db208aa931d1cddc6"` [INFO] [stderr] Compiling hunspell v0.1.2 [INFO] [stderr] Compiling words v0.1.0 (/opt/crater/workdir) [INFO] [stderr] warning: unknown lint: `needless_range_loop` [INFO] [stderr] --> src/board.rs:1:10 [INFO] [stderr] | [INFO] [stderr] 1 | #![allow(needless_range_loop)] [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unknown_lints)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::fmt` [INFO] [stderr] --> src/board.rs:6:5 [INFO] [stderr] | [INFO] [stderr] 6 | use std::fmt; [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_imports)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused import: `super::letter` [INFO] [stderr] --> src/board.rs:9:5 [INFO] [stderr] | [INFO] [stderr] 9 | use super::letter; [INFO] [stderr] | ^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused variable: `i` [INFO] [stderr] --> src/board.rs:69:14 [INFO] [stderr] | [INFO] [stderr] 69 | for (i, row) in self.rows.iter().enumerate() { [INFO] [stderr] | ^ help: consider prefixing with an underscore: `_i` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_variables)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `j` [INFO] [stderr] --> src/board.rs:70:18 [INFO] [stderr] | [INFO] [stderr] 70 | for (j, &letter) in row.iter().enumerate() { [INFO] [stderr] | ^ help: consider prefixing with an underscore: `_j` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:9:10 [INFO] [stderr] | [INFO] [stderr] 9 | let (mut board, letters) = Board::new_from_file("board.dat"); [INFO] [stderr] | ----^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_mut)] on by default [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:28:9 [INFO] [stderr] | [INFO] [stderr] 28 | let mut moves = moves.split_off(len - split); [INFO] [stderr] | ----^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/board.rs:50:13 [INFO] [stderr] | [INFO] [stderr] 50 | let mut lines = string.lines(); [INFO] [stderr] | ----^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: method is never used: `place` [INFO] [stderr] --> src/board.rs:105:5 [INFO] [stderr] | [INFO] [stderr] 105 | pub fn place(&mut self, i: usize, j: usize, letter: char) { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(dead_code)] on by default [INFO] [stderr] [INFO] [stderr] warning: function is never used: `dot` [INFO] [stderr] --> src/board.rs:598:1 [INFO] [stderr] | [INFO] [stderr] 598 | fn dot() { [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `new` [INFO] [stderr] --> src/letter.rs:21:5 [INFO] [stderr] | [INFO] [stderr] 21 | pub fn new(letter: char) -> Letter { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/board.rs:46:9 [INFO] [stderr] | [INFO] [stderr] 46 | file.read_to_string(&mut string); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_must_use)] on by default [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/board.rs:177:17 [INFO] [stderr] | [INFO] [stderr] 177 | io::stdout().flush(); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/board.rs:600:5 [INFO] [stderr] | [INFO] [stderr] 600 | io::stdout().flush(); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] error: linking with `cc` failed: exit code: 1 [INFO] [stderr] | [INFO] [stderr] = note: "cc" "-Wl,--as-needed" "-Wl,-z,noexecstack" "-m64" "-L" "/opt/crater/rustup-home/toolchains/beta-2019-07-23-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "/opt/crater/target/debug/deps/words-fb7fba058ad8fd8b.words.dhwhuwhy-cgu.0.rcgu.o" "/opt/crater/target/debug/deps/words-fb7fba058ad8fd8b.words.dhwhuwhy-cgu.1.rcgu.o" "/opt/crater/target/debug/deps/words-fb7fba058ad8fd8b.words.dhwhuwhy-cgu.10.rcgu.o" "/opt/crater/target/debug/deps/words-fb7fba058ad8fd8b.words.dhwhuwhy-cgu.11.rcgu.o" "/opt/crater/target/debug/deps/words-fb7fba058ad8fd8b.words.dhwhuwhy-cgu.12.rcgu.o" "/opt/crater/target/debug/deps/words-fb7fba058ad8fd8b.words.dhwhuwhy-cgu.13.rcgu.o" "/opt/crater/target/debug/deps/words-fb7fba058ad8fd8b.words.dhwhuwhy-cgu.14.rcgu.o" "/opt/crater/target/debug/deps/words-fb7fba058ad8fd8b.words.dhwhuwhy-cgu.15.rcgu.o" "/opt/crater/target/debug/deps/words-fb7fba058ad8fd8b.words.dhwhuwhy-cgu.2.rcgu.o" "/opt/crater/target/debug/deps/words-fb7fba058ad8fd8b.words.dhwhuwhy-cgu.3.rcgu.o" "/opt/crater/target/debug/deps/words-fb7fba058ad8fd8b.words.dhwhuwhy-cgu.4.rcgu.o" "/opt/crater/target/debug/deps/words-fb7fba058ad8fd8b.words.dhwhuwhy-cgu.5.rcgu.o" "/opt/crater/target/debug/deps/words-fb7fba058ad8fd8b.words.dhwhuwhy-cgu.6.rcgu.o" "/opt/crater/target/debug/deps/words-fb7fba058ad8fd8b.words.dhwhuwhy-cgu.7.rcgu.o" "/opt/crater/target/debug/deps/words-fb7fba058ad8fd8b.words.dhwhuwhy-cgu.8.rcgu.o" "/opt/crater/target/debug/deps/words-fb7fba058ad8fd8b.words.dhwhuwhy-cgu.9.rcgu.o" "-o" "/opt/crater/target/debug/deps/words-fb7fba058ad8fd8b" "/opt/crater/target/debug/deps/words-fb7fba058ad8fd8b.4qplkz1hbarfc63r.rcgu.o" "-Wl,--gc-sections" "-pie" "-Wl,-zrelro" "-Wl,-znow" "-nodefaultlibs" "-L" "/opt/crater/target/debug/deps" "-L" "/opt/crater/rustup-home/toolchains/beta-2019-07-23-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-Wl,-Bstatic" "/opt/crater/target/debug/deps/libhunspell-a3acf5a3f434f037.rlib" "-Wl,--start-group" "/opt/crater/rustup-home/toolchains/beta-2019-07-23-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-a80a1e8e09cafef8.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-07-23-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libpanic_unwind-e0e6351da805c468.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-07-23-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libbacktrace-e04f54bafc95e331.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-07-23-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libbacktrace_sys-67901d3322495bd5.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-07-23-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_demangle-bd390b1abaceaec1.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-07-23-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libhashbrown-312dd37fdc7bedfc.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-07-23-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_alloc-8ed0e51d58d644a3.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-07-23-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libunwind-8a423c320a6c707f.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-07-23-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcfg_if-d6a95598e2238263.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-07-23-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liblibc-d231614b153016eb.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-07-23-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liballoc-3821619027f463e4.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-07-23-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_core-1cfd794d18771a44.rlib" "/opt/crater/rustup-home/toolchains/beta-2019-07-23-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcore-dcf33cf10c2452ef.rlib" "-Wl,--end-group" "/opt/crater/rustup-home/toolchains/beta-2019-07-23-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcompiler_builtins-c258fea34bf64bce.rlib" "-Wl,-Bdynamic" "-lhunspell" "-ldl" "-lrt" "-lpthread" "-lgcc_s" "-lc" "-lm" "-lrt" "-lpthread" "-lutil" "-lutil" [INFO] [stderr] = note: /usr/bin/ld: cannot find -lhunspell [INFO] [stderr] collect2: error: ld returned 1 exit status [INFO] [stderr] [INFO] [stderr] [INFO] [stderr] error: aborting due to previous error [INFO] [stderr] [INFO] [stderr] error: Could not compile `words`. [INFO] [stderr] [INFO] [stderr] To learn more, run the command again with --verbose. [INFO] running `"docker" "inspect" "bb50b108f7c6a48cbab309fcbce2695b437e32222abdef4db208aa931d1cddc6"` [INFO] running `"docker" "rm" "-f" "bb50b108f7c6a48cbab309fcbce2695b437e32222abdef4db208aa931d1cddc6"` [INFO] [stdout] bb50b108f7c6a48cbab309fcbce2695b437e32222abdef4db208aa931d1cddc6