[INFO] updating cached repository Peternator7/cracker-barrel-rust
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/Peternator7/cracker-barrel-rust
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/Peternator7/cracker-barrel-rust" "work/ex/beta-1.37-6/sources/1.36.0/gh/Peternator7/cracker-barrel-rust"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/Peternator7/cracker-barrel-rust'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/Peternator7/cracker-barrel-rust" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/Peternator7/cracker-barrel-rust"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/Peternator7/cracker-barrel-rust'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] c745de53d1a7e569c0bf536d5363019b428b2084
[INFO] sha for GitHub repo Peternator7/cracker-barrel-rust: c745de53d1a7e569c0bf536d5363019b428b2084
[INFO] validating manifest of Peternator7/cracker-barrel-rust 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 Peternator7/cracker-barrel-rust 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 Peternator7/cracker-barrel-rust
[INFO] finished frobbing Peternator7/cracker-barrel-rust
[INFO] frobbed toml for Peternator7/cracker-barrel-rust written to work/ex/beta-1.37-6/sources/1.36.0/gh/Peternator7/cracker-barrel-rust/Cargo.toml
[INFO] started frobbing Peternator7/cracker-barrel-rust
[INFO] finished frobbing Peternator7/cracker-barrel-rust
[INFO] frobbed toml for Peternator7/cracker-barrel-rust written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/Peternator7/cracker-barrel-rust/Cargo.toml
[INFO] crate Peternator7/cracker-barrel-rust 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] [stderr]     Blocking waiting for file lock on package cache lock
[INFO] [stderr]     Blocking waiting for file lock on package cache lock
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing Peternator7/cracker-barrel-rust 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-1/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/Peternator7/cracker-barrel-rust:/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] d0f1acf575b01823db5f182c391ae103a437275302a0b3ddc705bca16f440b4e
[INFO] running `"docker" "start" "-a" "d0f1acf575b01823db5f182c391ae103a437275302a0b3ddc705bca16f440b4e"`
[INFO] [stderr]    Compiling triangle_problem v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: static variable `c` should have an upper case name
[INFO] [stderr]   --> src/graph.rs:10:8
[INFO] [stderr]    |
[INFO] [stderr] 10 | static c: Option<Piece> = None;
[INFO] [stderr]    |        ^ help: convert the identifier to upper case: `C`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(non_upper_case_globals)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.67s
[INFO] running `"docker" "inspect" "d0f1acf575b01823db5f182c391ae103a437275302a0b3ddc705bca16f440b4e"`
[INFO] running `"docker" "rm" "-f" "d0f1acf575b01823db5f182c391ae103a437275302a0b3ddc705bca16f440b4e"`
[INFO] [stdout] d0f1acf575b01823db5f182c391ae103a437275302a0b3ddc705bca16f440b4e
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-1/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/Peternator7/cracker-barrel-rust:/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" "test" "--frozen" "--no-run"`
[INFO] [stdout] 79a59d61fefdb9cbdc29c74c6e69101175d6adb36965b5fba1ef12efd7576418
[INFO] running `"docker" "start" "-a" "79a59d61fefdb9cbdc29c74c6e69101175d6adb36965b5fba1ef12efd7576418"`
[INFO] [stderr]    Compiling triangle_problem v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: static variable `c` should have an upper case name
[INFO] [stderr]   --> src/graph.rs:10:8
[INFO] [stderr]    |
[INFO] [stderr] 10 | static c: Option<Piece> = None;
[INFO] [stderr]    |        ^ help: convert the identifier to upper case: `C`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(non_upper_case_globals)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.72s
[INFO] running `"docker" "inspect" "79a59d61fefdb9cbdc29c74c6e69101175d6adb36965b5fba1ef12efd7576418"`
[INFO] running `"docker" "rm" "-f" "79a59d61fefdb9cbdc29c74c6e69101175d6adb36965b5fba1ef12efd7576418"`
[INFO] [stdout] 79a59d61fefdb9cbdc29c74c6e69101175d6adb36965b5fba1ef12efd7576418
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-1/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/Peternator7/cracker-barrel-rust:/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" "test" "--frozen"`
[INFO] [stdout] 2226e9abbf9441ff831e633849bbff12c809ab10f83fb6cb6f341c640e49bb89
[INFO] running `"docker" "start" "-a" "2226e9abbf9441ff831e633849bbff12c809ab10f83fb6cb6f341c640e49bb89"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/triangle_problem-54b99adbf40ccc60
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "2226e9abbf9441ff831e633849bbff12c809ab10f83fb6cb6f341c640e49bb89"`
[INFO] running `"docker" "rm" "-f" "2226e9abbf9441ff831e633849bbff12c809ab10f83fb6cb6f341c640e49bb89"`
[INFO] [stdout] 2226e9abbf9441ff831e633849bbff12c809ab10f83fb6cb6f341c640e49bb89