[INFO] updating cached repository DR-BoneZ/knowledge-engine-rs
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/DR-BoneZ/knowledge-engine-rs
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/DR-BoneZ/knowledge-engine-rs" "work/ex/pr-62507/sources/master#78ca1bda3522b14bc0336bc01dd1d49fdba2cda7/gh/DR-BoneZ/knowledge-engine-rs"`
[INFO] [stderr] Cloning into 'work/ex/pr-62507/sources/master#78ca1bda3522b14bc0336bc01dd1d49fdba2cda7/gh/DR-BoneZ/knowledge-engine-rs'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/DR-BoneZ/knowledge-engine-rs" "work/ex/pr-62507/sources/try#18481b65f318e0b4b20c0fc61340054701719d6c/gh/DR-BoneZ/knowledge-engine-rs"`
[INFO] [stderr] Cloning into 'work/ex/pr-62507/sources/try#18481b65f318e0b4b20c0fc61340054701719d6c/gh/DR-BoneZ/knowledge-engine-rs'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] af98fa45ed6061e5332bf155b2b7c5266e883aab
[INFO] sha for GitHub repo DR-BoneZ/knowledge-engine-rs: af98fa45ed6061e5332bf155b2b7c5266e883aab
[INFO] validating manifest of DR-BoneZ/knowledge-engine-rs 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 DR-BoneZ/knowledge-engine-rs 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 DR-BoneZ/knowledge-engine-rs
[INFO] finished frobbing DR-BoneZ/knowledge-engine-rs
[INFO] frobbed toml for DR-BoneZ/knowledge-engine-rs written to work/ex/pr-62507/sources/master#78ca1bda3522b14bc0336bc01dd1d49fdba2cda7/gh/DR-BoneZ/knowledge-engine-rs/Cargo.toml
[INFO] started frobbing DR-BoneZ/knowledge-engine-rs
[INFO] finished frobbing DR-BoneZ/knowledge-engine-rs
[INFO] frobbed toml for DR-BoneZ/knowledge-engine-rs written to work/ex/pr-62507/sources/try#18481b65f318e0b4b20c0fc61340054701719d6c/gh/DR-BoneZ/knowledge-engine-rs/Cargo.toml
[INFO] crate DR-BoneZ/knowledge-engine-rs 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] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+18481b65f318e0b4b20c0fc61340054701719d6c-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking DR-BoneZ/knowledge-engine-rs against try#18481b65f318e0b4b20c0fc61340054701719d6c for pr-62507
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-62507/worker-6/try#18481b65f318e0b4b20c0fc61340054701719d6c:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-62507/sources/try#18481b65f318e0b4b20c0fc61340054701719d6c/gh/DR-BoneZ/knowledge-engine-rs:/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" "+18481b65f318e0b4b20c0fc61340054701719d6c-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 27aa6eabcc6eda13da720cfc029611e1b75e94fb762824e68522fdd19db4f8d7
[INFO] running `"docker" "start" "-a" "27aa6eabcc6eda13da720cfc029611e1b75e94fb762824e68522fdd19db4f8d7"`
[INFO] [stderr]     Checking half v1.3.0
[INFO] [stderr]    Compiling clingo-sys v0.4.1
[INFO] [stderr]    Compiling pest_generator v2.1.0
[INFO] [stderr]     Checking Inflector v0.11.4
[INFO] [stderr]     Checking serde_cbor v0.9.0
[INFO] [stderr]    Compiling pest_derive v2.1.0
[INFO] [stderr]     Checking clingo v0.4.0
[INFO] [stderr]     Checking knowledge-engine-rs v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `HashMap`
[INFO] [stderr]   --> src/main.rs:13:24
[INFO] [stderr]    |
[INFO] [stderr] 13 | use std::collections::{HashMap, HashSet};
[INFO] [stderr]    |                        ^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `HashMap`
[INFO] [stderr]   --> src/main.rs:13:24
[INFO] [stderr]    |
[INFO] [stderr] 13 | use std::collections::{HashMap, HashSet};
[INFO] [stderr]    |                        ^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable pattern
[INFO] [stderr]    --> src/main.rs:221:13
[INFO] [stderr]     |
[INFO] [stderr] 221 |             _ => (),
[INFO] [stderr]     |             ^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unreachable_patterns)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable pattern
[INFO] [stderr]    --> src/main.rs:221:13
[INFO] [stderr]     |
[INFO] [stderr] 221 |             _ => (),
[INFO] [stderr]     |             ^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unreachable_patterns)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4m 47s
[INFO] running `"docker" "inspect" "27aa6eabcc6eda13da720cfc029611e1b75e94fb762824e68522fdd19db4f8d7"`
[INFO] running `"docker" "rm" "-f" "27aa6eabcc6eda13da720cfc029611e1b75e94fb762824e68522fdd19db4f8d7"`
[INFO] [stdout] 27aa6eabcc6eda13da720cfc029611e1b75e94fb762824e68522fdd19db4f8d7