[INFO] crate guessing_number 0.1.0 is already in cache
[INFO] testing guessing_number-0.1.0 against 1.38.0 for beta-1.39-1
[INFO] extracting crate guessing_number 0.1.0 into work/builds/worker-1/source
[INFO] validating manifest of crates.io crate guessing_number 0.1.0 on toolchain 1.38.0
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate guessing_number 0.1.0
[INFO] finished tweaking crates.io crate guessing_number 0.1.0
[INFO] tweaked toml for crates.io crate guessing_number 0.1.0 written to work/builds/worker-1/source/Cargo.toml
[INFO] crate crates.io crate guessing_number 0.1.0 already has a lockfile, it will not be regenerated
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-1/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.38.0" "build" "--frozen"`
[INFO] [stdout] 6420e010a1d67663e11adb4802b084100f957ed9475672658115879daa791bac
[INFO] running `"docker" "start" "-a" "6420e010a1d67663e11adb4802b084100f957ed9475672658115879daa791bac"`
[INFO] [stderr]    Compiling guessing_number v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: function is never used: `internal_adder`
[INFO] [stderr]    --> src/lib.rs:138:1
[INFO] [stderr]     |
[INFO] [stderr] 138 | fn internal_adder(a: i32, b: i32) -> i32 {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Rectangle`
[INFO] [stderr]    --> src/lib.rs:149:1
[INFO] [stderr]     |
[INFO] [stderr] 149 | struct Rectangle {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `can_hold`
[INFO] [stderr]    --> src/lib.rs:155:5
[INFO] [stderr]     |
[INFO] [stderr] 155 |     fn can_hold(&self, other: &Rectangle) -> bool {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `f`
[INFO] [stderr]    --> src/main.rs:150:9
[INFO] [stderr]     |
[INFO] [stderr] 150 |     let f = match f {
[INFO] [stderr]     |         ^ help: consider prefixing with an underscore: `_f`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:91:9
[INFO] [stderr]    |
[INFO] [stderr] 91 |     let mut scores: HashMap<_, _> = teams.iter().zip(initial_scores.iter()).collect();
[INFO] [stderr]    |         ----^^^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `guess_num`
[INFO] [stderr]  --> src/main.rs:5:1
[INFO] [stderr]   |
[INFO] [stderr] 5 | fn guess_num(){
[INFO] [stderr]   | ^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.26s
[INFO] running `"docker" "inspect" "6420e010a1d67663e11adb4802b084100f957ed9475672658115879daa791bac"`
[INFO] running `"docker" "rm" "-f" "6420e010a1d67663e11adb4802b084100f957ed9475672658115879daa791bac"`
[INFO] [stdout] 6420e010a1d67663e11adb4802b084100f957ed9475672658115879daa791bac
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-1/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.38.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] d3404f75d0565fe2920880f27e9556518a6ed33de44f7c779c0114f34c0db35f
[INFO] running `"docker" "start" "-a" "d3404f75d0565fe2920880f27e9556518a6ed33de44f7c779c0114f34c0db35f"`
[INFO] [stderr]    Compiling guessing_number v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused variable: `f`
[INFO] [stderr]    --> src/main.rs:150:9
[INFO] [stderr]     |
[INFO] [stderr] 150 |     let f = match f {
[INFO] [stderr]     |         ^ help: consider prefixing with an underscore: `_f`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:91:9
[INFO] [stderr]    |
[INFO] [stderr] 91 |     let mut scores: HashMap<_, _> = teams.iter().zip(initial_scores.iter()).collect();
[INFO] [stderr]    |         ----^^^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `guess_num`
[INFO] [stderr]  --> src/main.rs:5:1
[INFO] [stderr]   |
[INFO] [stderr] 5 | fn guess_num(){
[INFO] [stderr]   | ^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.45s
[INFO] running `"docker" "inspect" "d3404f75d0565fe2920880f27e9556518a6ed33de44f7c779c0114f34c0db35f"`
[INFO] running `"docker" "rm" "-f" "d3404f75d0565fe2920880f27e9556518a6ed33de44f7c779c0114f34c0db35f"`
[INFO] [stdout] d3404f75d0565fe2920880f27e9556518a6ed33de44f7c779c0114f34c0db35f
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-1/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.38.0" "test" "--frozen"`
[INFO] [stdout] 6c6e51b7d18712d2f38a3c69a0f018049936027195134bfdd6b045ba2bfd6da7
[INFO] running `"docker" "start" "-a" "6c6e51b7d18712d2f38a3c69a0f018049936027195134bfdd6b045ba2bfd6da7"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/guessing_number-b3b3d15b0e2898d5
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test tests::do_cmd ... ok
[INFO] [stdout] test tests::internal ... ok
[INFO] [stdout] test tests::do_holder ... ok
[INFO] [stdout] test tests::it_works ... ok
[INFO] [stdout] test tests::test_add ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/guessing_number-e5ee1e72d6ec9499
[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] [stderr]    Doc-tests guessing_number
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - add_one (line 80) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "6c6e51b7d18712d2f38a3c69a0f018049936027195134bfdd6b045ba2bfd6da7"`
[INFO] running `"docker" "rm" "-f" "6c6e51b7d18712d2f38a3c69a0f018049936027195134bfdd6b045ba2bfd6da7"`
[INFO] [stdout] 6c6e51b7d18712d2f38a3c69a0f018049936027195134bfdd6b045ba2bfd6da7