[INFO] updating cached repository Tmplt/d7018e-assignment3
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/Tmplt/d7018e-assignment3
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/Tmplt/d7018e-assignment3" "work/ex/beta-1.38-1/sources/1.37.0/gh/Tmplt/d7018e-assignment3"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/Tmplt/d7018e-assignment3'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/Tmplt/d7018e-assignment3" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Tmplt/d7018e-assignment3"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Tmplt/d7018e-assignment3'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 92eb630c6ba0be093107cea7c739824dfe819f43
[INFO] sha for GitHub repo Tmplt/d7018e-assignment3: 92eb630c6ba0be093107cea7c739824dfe819f43
[INFO] validating manifest of Tmplt/d7018e-assignment3 on toolchain 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of Tmplt/d7018e-assignment3 on toolchain beta-2019-08-13
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing Tmplt/d7018e-assignment3
[INFO] finished frobbing Tmplt/d7018e-assignment3
[INFO] frobbed toml for Tmplt/d7018e-assignment3 written to work/ex/beta-1.38-1/sources/1.37.0/gh/Tmplt/d7018e-assignment3/Cargo.toml
[INFO] started frobbing Tmplt/d7018e-assignment3
[INFO] finished frobbing Tmplt/d7018e-assignment3
[INFO] frobbed toml for Tmplt/d7018e-assignment3 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Tmplt/d7018e-assignment3/Cargo.toml
[INFO] crate Tmplt/d7018e-assignment3 already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing Tmplt/d7018e-assignment3 against 1.37.0 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/Tmplt/d7018e-assignment3:/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" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] 962baa0d7c357183555a8a227600d005594d2ff30746f1f481f1a520f52ee7b6
[INFO] running `"docker" "start" "-a" "962baa0d7c357183555a8a227600d005594d2ff30746f1f481f1a520f52ee7b6"`
[INFO] [stderr]    Compiling d7018e-assign3 v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `abc`
[INFO] [stderr]   --> src/main.rs:37:9
[INFO] [stderr]    |
[INFO] [stderr] 37 |     let abc: [u32; 4] = [
[INFO] [stderr]    |         ^^^ help: consider prefixing with an underscore: `_abc`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.02s
[INFO] running `"docker" "inspect" "962baa0d7c357183555a8a227600d005594d2ff30746f1f481f1a520f52ee7b6"`
[INFO] running `"docker" "rm" "-f" "962baa0d7c357183555a8a227600d005594d2ff30746f1f481f1a520f52ee7b6"`
[INFO] [stdout] 962baa0d7c357183555a8a227600d005594d2ff30746f1f481f1a520f52ee7b6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/Tmplt/d7018e-assignment3:/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" "+1.37.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] c4a451ccb3d5c4146a355724bc99cadc9e261a6dca72deea0c5b6d8d1fca5759
[INFO] running `"docker" "start" "-a" "c4a451ccb3d5c4146a355724bc99cadc9e261a6dca72deea0c5b6d8d1fca5759"`
[INFO] [stderr]    Compiling d7018e-assign3 v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `abc`
[INFO] [stderr]   --> src/main.rs:37:9
[INFO] [stderr]    |
[INFO] [stderr] 37 |     let abc: [u32; 4] = [
[INFO] [stderr]    |         ^^^ help: consider prefixing with an underscore: `_abc`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.51s
[INFO] running `"docker" "inspect" "c4a451ccb3d5c4146a355724bc99cadc9e261a6dca72deea0c5b6d8d1fca5759"`
[INFO] running `"docker" "rm" "-f" "c4a451ccb3d5c4146a355724bc99cadc9e261a6dca72deea0c5b6d8d1fca5759"`
[INFO] [stdout] c4a451ccb3d5c4146a355724bc99cadc9e261a6dca72deea0c5b6d8d1fca5759
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/Tmplt/d7018e-assignment3:/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" "+1.37.0" "test" "--frozen"`
[INFO] [stdout] 295459f40795537390c4c2e63f8db632fb9fbe594b503513c0180f1efae891b5
[INFO] running `"docker" "start" "-a" "295459f40795537390c4c2e63f8db632fb9fbe594b503513c0180f1efae891b5"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/d7018e_assign3-82f0d3bfa398d6aa
[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" "295459f40795537390c4c2e63f8db632fb9fbe594b503513c0180f1efae891b5"`
[INFO] running `"docker" "rm" "-f" "295459f40795537390c4c2e63f8db632fb9fbe594b503513c0180f1efae891b5"`
[INFO] [stdout] 295459f40795537390c4c2e63f8db632fb9fbe594b503513c0180f1efae891b5