[INFO] updating cached repository selvaa89/rust-poc
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/selvaa89/rust-poc
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/selvaa89/rust-poc" "work/ex/beta-1.38-1/sources/1.37.0/gh/selvaa89/rust-poc"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/selvaa89/rust-poc'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/selvaa89/rust-poc" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/selvaa89/rust-poc"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/selvaa89/rust-poc'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] dc35085c8fbe029b67b95ba3506c4f30a6ca504c
[INFO] sha for GitHub repo selvaa89/rust-poc: dc35085c8fbe029b67b95ba3506c4f30a6ca504c
[INFO] validating manifest of selvaa89/rust-poc 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 selvaa89/rust-poc 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 selvaa89/rust-poc
[INFO] finished frobbing selvaa89/rust-poc
[INFO] frobbed toml for selvaa89/rust-poc written to work/ex/beta-1.38-1/sources/1.37.0/gh/selvaa89/rust-poc/Cargo.toml
[INFO] started frobbing selvaa89/rust-poc
[INFO] finished frobbing selvaa89/rust-poc
[INFO] frobbed toml for selvaa89/rust-poc written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/selvaa89/rust-poc/Cargo.toml
[INFO] crate selvaa89/rust-poc 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] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing selvaa89/rust-poc against beta-2019-08-13 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-0/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/selvaa89/rust-poc:/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-2019-08-13" "build" "--frozen"`
[INFO] [stdout] 039b0a3ebd52524db62d8b04ca2a17daf00a027c97baf2f713f7940977d241cc
[INFO] running `"docker" "start" "-a" "039b0a3ebd52524db62d8b04ca2a17daf00a027c97baf2f713f7940977d241cc"`
[INFO] [stderr]    Compiling guessing_game v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `third`
[INFO] [stderr]   --> src/main.rs:40:9
[INFO] [stderr]    |
[INFO] [stderr] 40 |     let third: &u32 = &v1[2];
[INFO] [stderr]    |         ^^^^^ help: consider prefixing with an underscore: `_third`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `rec2`
[INFO] [stderr]    --> src/main.rs:126:8
[INFO] [stderr]     |
[INFO] [stderr] 126 | fn inc(rec2 : &mut Rectangle) {
[INFO] [stderr]     |        ^^^^ help: consider prefixing with an underscore: `_rec2`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `v3`
[INFO] [stderr]    --> src/main.rs:134:15
[INFO] [stderr]     |
[INFO] [stderr] 134 | fn updateVec (v3 : &mut Vec<u32>) {
[INFO] [stderr]     |               ^^ help: consider prefixing with an underscore: `_v3`
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `CSE`
[INFO] [stderr]   --> src/main.rs:16:5
[INFO] [stderr]    |
[INFO] [stderr] 16 |     CSE,
[INFO] [stderr]    |     ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `ECE`
[INFO] [stderr]   --> src/main.rs:17:5
[INFO] [stderr]    |
[INFO] [stderr] 17 |     ECE,
[INFO] [stderr]    |     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `EEE`
[INFO] [stderr]   --> src/main.rs:18:5
[INFO] [stderr]    |
[INFO] [stderr] 18 |     EEE
[INFO] [stderr]    |     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `inc`
[INFO] [stderr]    --> src/main.rs:126:1
[INFO] [stderr]     |
[INFO] [stderr] 126 | fn inc(rec2 : &mut Rectangle) {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `updateVec`
[INFO] [stderr]    --> src/main.rs:134:1
[INFO] [stderr]     |
[INFO] [stderr] 134 | fn updateVec (v3 : &mut Vec<u32>) {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `updateVec` should have a snake case name
[INFO] [stderr]    --> src/main.rs:134:4
[INFO] [stderr]     |
[INFO] [stderr] 134 | fn updateVec (v3 : &mut Vec<u32>) {
[INFO] [stderr]     |    ^^^^^^^^^ help: convert the identifier to snake case: `update_vec`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.78s
[INFO] running `"docker" "inspect" "039b0a3ebd52524db62d8b04ca2a17daf00a027c97baf2f713f7940977d241cc"`
[INFO] running `"docker" "rm" "-f" "039b0a3ebd52524db62d8b04ca2a17daf00a027c97baf2f713f7940977d241cc"`
[INFO] [stdout] 039b0a3ebd52524db62d8b04ca2a17daf00a027c97baf2f713f7940977d241cc
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-0/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/selvaa89/rust-poc:/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-2019-08-13" "test" "--frozen" "--no-run"`
[INFO] [stdout] 980e7c40a1bc61dd65a5415bd40db44b33a6ba5d0ffd0cc38d757a148f8f798e
[INFO] running `"docker" "start" "-a" "980e7c40a1bc61dd65a5415bd40db44b33a6ba5d0ffd0cc38d757a148f8f798e"`
[INFO] [stderr]    Compiling guessing_game v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `third`
[INFO] [stderr]   --> src/main.rs:40:9
[INFO] [stderr]    |
[INFO] [stderr] 40 |     let third: &u32 = &v1[2];
[INFO] [stderr]    |         ^^^^^ help: consider prefixing with an underscore: `_third`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `rec2`
[INFO] [stderr]    --> src/main.rs:126:8
[INFO] [stderr]     |
[INFO] [stderr] 126 | fn inc(rec2 : &mut Rectangle) {
[INFO] [stderr]     |        ^^^^ help: consider prefixing with an underscore: `_rec2`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `v3`
[INFO] [stderr]    --> src/main.rs:134:15
[INFO] [stderr]     |
[INFO] [stderr] 134 | fn updateVec (v3 : &mut Vec<u32>) {
[INFO] [stderr]     |               ^^ help: consider prefixing with an underscore: `_v3`
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `CSE`
[INFO] [stderr]   --> src/main.rs:16:5
[INFO] [stderr]    |
[INFO] [stderr] 16 |     CSE,
[INFO] [stderr]    |     ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `ECE`
[INFO] [stderr]   --> src/main.rs:17:5
[INFO] [stderr]    |
[INFO] [stderr] 17 |     ECE,
[INFO] [stderr]    |     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `EEE`
[INFO] [stderr]   --> src/main.rs:18:5
[INFO] [stderr]    |
[INFO] [stderr] 18 |     EEE
[INFO] [stderr]    |     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `inc`
[INFO] [stderr]    --> src/main.rs:126:1
[INFO] [stderr]     |
[INFO] [stderr] 126 | fn inc(rec2 : &mut Rectangle) {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `updateVec`
[INFO] [stderr]    --> src/main.rs:134:1
[INFO] [stderr]     |
[INFO] [stderr] 134 | fn updateVec (v3 : &mut Vec<u32>) {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `updateVec` should have a snake case name
[INFO] [stderr]    --> src/main.rs:134:4
[INFO] [stderr]     |
[INFO] [stderr] 134 | fn updateVec (v3 : &mut Vec<u32>) {
[INFO] [stderr]     |    ^^^^^^^^^ help: convert the identifier to snake case: `update_vec`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.59s
[INFO] running `"docker" "inspect" "980e7c40a1bc61dd65a5415bd40db44b33a6ba5d0ffd0cc38d757a148f8f798e"`
[INFO] running `"docker" "rm" "-f" "980e7c40a1bc61dd65a5415bd40db44b33a6ba5d0ffd0cc38d757a148f8f798e"`
[INFO] [stdout] 980e7c40a1bc61dd65a5415bd40db44b33a6ba5d0ffd0cc38d757a148f8f798e
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-0/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/selvaa89/rust-poc:/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-2019-08-13" "test" "--frozen"`
[INFO] [stdout] db9b3b98d6394aebb4928defcde045afe9281d203eb00f2720b9d9809f149ae4
[INFO] running `"docker" "start" "-a" "db9b3b98d6394aebb4928defcde045afe9281d203eb00f2720b9d9809f149ae4"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/guessing_game-27ea0961b9015337
[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" "db9b3b98d6394aebb4928defcde045afe9281d203eb00f2720b9d9809f149ae4"`
[INFO] running `"docker" "rm" "-f" "db9b3b98d6394aebb4928defcde045afe9281d203eb00f2720b9d9809f149ae4"`
[INFO] [stdout] db9b3b98d6394aebb4928defcde045afe9281d203eb00f2720b9d9809f149ae4