[INFO] updating cached repository tompko/arendil
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/tompko/arendil
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/tompko/arendil" "work/ex/pr-59199/sources/master#bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7/gh/tompko/arendil"`
[INFO] [stderr] Cloning into 'work/ex/pr-59199/sources/master#bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7/gh/tompko/arendil'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/tompko/arendil" "work/ex/pr-59199/sources/try#68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b/gh/tompko/arendil"`
[INFO] [stderr] Cloning into 'work/ex/pr-59199/sources/try#68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b/gh/tompko/arendil'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 170f67cb23d1c60c11b9ef5be11f6d56558cb351
[INFO] sha for GitHub repo tompko/arendil: 170f67cb23d1c60c11b9ef5be11f6d56558cb351
[INFO] validating manifest of tompko/arendil on toolchain master#bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of tompko/arendil on toolchain try#68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing tompko/arendil
[INFO] finished frobbing tompko/arendil
[INFO] frobbed toml for tompko/arendil written to work/ex/pr-59199/sources/master#bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7/gh/tompko/arendil/Cargo.toml
[INFO] started frobbing tompko/arendil
[INFO] finished frobbing tompko/arendil
[INFO] frobbed toml for tompko/arendil written to work/ex/pr-59199/sources/try#68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b/gh/tompko/arendil/Cargo.toml
[INFO] crate tompko/arendil already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr] error: the lock file /mnt/crater-raid/crater/work/ex/pr-59199/sources/master#bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7/gh/tompko/arendil/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] the lockfile is outdated, regenerating it
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking tompko/arendil against try#68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b for pr-59199
[INFO] running `"docker" "create" "-v" "/mnt/crater-raid/crater/work/local/target-dirs/pr-59199/worker-6/try#68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b:/opt/crater/target:rw,Z" "-v" "/mnt/crater-raid/crater/work/ex/pr-59199/sources/try#68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b/gh/tompko/arendil:/opt/crater/workdir:ro,Z" "-v" "/mnt/crater-raid/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/crater-raid/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" "+68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 3079140f16f5401ae37f37617a5b86906fcfcb8fcaf25f81a8d4c8a7a8d44239
[INFO] running `"docker" "start" "-a" "3079140f16f5401ae37f37617a5b86906fcfcb8fcaf25f81a8d4c8a7a8d44239"`
[INFO] [stderr]     Checking arendil v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `Cursor`
[INFO] [stderr]  --> src/epd.rs:1:35
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::io::{BufReader, BufRead, Cursor, Read};
[INFO] [stderr]   |                                   ^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Cursor`
[INFO] [stderr]  --> src/epd.rs:1:35
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::io::{BufReader, BufRead, Cursor, Read};
[INFO] [stderr]   |                                   ^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `BufRead`, `BufReader`, `Read`
[INFO] [stderr]   --> src/epd.rs:51:19
[INFO] [stderr]    |
[INFO] [stderr] 51 |     use std::io::{BufReader, BufRead, Cursor, Read};
[INFO] [stderr]    |                   ^^^^^^^^^  ^^^^^^^          ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `line`
[INFO] [stderr]   --> src/epd.rs:43:16
[INFO] [stderr]    |
[INFO] [stderr] 43 |     pub fn new(line: String) -> Result<Self, String> {
[INFO] [stderr]    |                ^^^^ help: consider prefixing with an underscore: `_line`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `epd`
[INFO] [stderr]  --> src/perft.rs:3:13
[INFO] [stderr]   |
[INFO] [stderr] 3 | pub fn test(epd: &EpdReader) -> Result<(), String> {
[INFO] [stderr]   |             ^^^ help: consider prefixing with an underscore: `_epd`
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `EpdOperand`
[INFO] [stderr]  --> src/epd.rs:3:1
[INFO] [stderr]   |
[INFO] [stderr] 3 | pub enum EpdOperand {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Epd`
[INFO] [stderr]   --> src/epd.rs:11:1
[INFO] [stderr]    |
[INFO] [stderr] 11 | pub struct Epd {
[INFO] [stderr]    | ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `reader`
[INFO] [stderr]   --> src/epd.rs:17:5
[INFO] [stderr]    |
[INFO] [stderr] 17 |     reader: &'a mut Read,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `decode`
[INFO] [stderr]   --> src/epd.rs:25:5
[INFO] [stderr]    |
[INFO] [stderr] 25 |     pub fn decode(&mut self) -> Result<Vec<Epd>, String> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/epd.rs:43:5
[INFO] [stderr]    |
[INFO] [stderr] 43 |     pub fn new(line: String) -> Result<Self, String> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `line`
[INFO] [stderr]   --> src/epd.rs:43:16
[INFO] [stderr]    |
[INFO] [stderr] 43 |     pub fn new(line: String) -> Result<Self, String> {
[INFO] [stderr]    |                ^^^^ help: consider prefixing with an underscore: `_line`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `epd`
[INFO] [stderr]  --> src/perft.rs:3:13
[INFO] [stderr]   |
[INFO] [stderr] 3 | pub fn test(epd: &EpdReader) -> Result<(), String> {
[INFO] [stderr]   |             ^^^ help: consider prefixing with an underscore: `_epd`
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Str`
[INFO] [stderr]  --> src/epd.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 |     Str(String),
[INFO] [stderr]   |     ^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Move`
[INFO] [stderr]  --> src/epd.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 |     Move(String),
[INFO] [stderr]   |     ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Unsigned`
[INFO] [stderr]  --> src/epd.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 |     Unsigned(u32),
[INFO] [stderr]   |     ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Integer`
[INFO] [stderr]  --> src/epd.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 |     Integer(i32),
[INFO] [stderr]   |     ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Float`
[INFO] [stderr]  --> src/epd.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 |     Float(f32)
[INFO] [stderr]   |     ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `fen_string`
[INFO] [stderr]   --> src/epd.rs:12:5
[INFO] [stderr]    |
[INFO] [stderr] 12 |     fen_string: String,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `operations`
[INFO] [stderr]   --> src/epd.rs:13:5
[INFO] [stderr]    |
[INFO] [stderr] 13 |     operations: Vec<EpdOperand>
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.32s
[INFO] running `"docker" "inspect" "3079140f16f5401ae37f37617a5b86906fcfcb8fcaf25f81a8d4c8a7a8d44239"`
[INFO] running `"docker" "rm" "-f" "3079140f16f5401ae37f37617a5b86906fcfcb8fcaf25f81a8d4c8a7a8d44239"`
[INFO] [stdout] 3079140f16f5401ae37f37617a5b86906fcfcb8fcaf25f81a8d4c8a7a8d44239