[INFO] crate bulls-and-cows 1.0.13 is already in cache
[INFO] testing bulls-and-cows-1.0.13 against try#41997647ba6a77908f6ef64401414feb00bccf16 for pr-71274
[INFO] extracting crate bulls-and-cows 1.0.13 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate bulls-and-cows 1.0.13 on toolchain 41997647ba6a77908f6ef64401414feb00bccf16
[INFO] running `"/workspace/cargo-home/bin/cargo" "+41997647ba6a77908f6ef64401414feb00bccf16" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate bulls-and-cows 1.0.13
[INFO] finished tweaking crates.io crate bulls-and-cows 1.0.13
[INFO] tweaked toml for crates.io crate bulls-and-cows 1.0.13 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate crates.io crate bulls-and-cows 1.0.13 already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+41997647ba6a77908f6ef64401414feb00bccf16" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-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" "+41997647ba6a77908f6ef64401414feb00bccf16" "build" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] f0e1c9f35be419841b57e731fcd1544c7887531a0358ddfbd192ac7125eb0fb3
[INFO] running `"docker" "start" "-a" "f0e1c9f35be419841b57e731fcd1544c7887531a0358ddfbd192ac7125eb0fb3"`
[INFO] [stderr]    Compiling libc v0.2.67
[INFO] [stderr]    Compiling memchr v2.3.2
[INFO] [stderr]    Compiling regex-syntax v0.6.14
[INFO] [stderr]    Compiling debug-helper v0.3.8
[INFO] [stderr]    Compiling permutohedron v0.2.4
[INFO] [stderr]    Compiling c2-chacha v0.2.3
[INFO] [stderr]    Compiling thread_local v1.0.1
[INFO] [stderr]    Compiling aho-corasick v0.7.8
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling rand_chacha v0.2.1
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling random-integer v1.0.5
[INFO] [stderr]    Compiling random-pick v1.2.7
[INFO] [stderr]    Compiling regex v1.3.4
[INFO] [stderr]    Compiling bulls-and-cows v1.0.13 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 20.38s
[INFO] running `"docker" "inspect" "f0e1c9f35be419841b57e731fcd1544c7887531a0358ddfbd192ac7125eb0fb3"`
[INFO] running `"docker" "rm" "-f" "f0e1c9f35be419841b57e731fcd1544c7887531a0358ddfbd192ac7125eb0fb3"`
[INFO] [stdout] f0e1c9f35be419841b57e731fcd1544c7887531a0358ddfbd192ac7125eb0fb3
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-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" "+41997647ba6a77908f6ef64401414feb00bccf16" "test" "--frozen" "--no-run"`
[INFO] [stdout] ba0f4fbcbb67273ed0f8259efd9cbdcc8db35a64e0a7e88534030991d9234bfe
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "ba0f4fbcbb67273ed0f8259efd9cbdcc8db35a64e0a7e88534030991d9234bfe"`
[INFO] [stderr]    Compiling bulls-and-cows v1.0.13 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unnecessary braces around block return value
[INFO] [stderr]   --> examples/custom_2_players.rs:15:38
[INFO] [stderr]    |
[INFO] [stderr] 15 |     static ref AB_PARSER: ABParser = { ABParser::new() };
[INFO] [stderr]    |                                      ^^^^^^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_braces)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 3.35s
[INFO] running `"docker" "inspect" "ba0f4fbcbb67273ed0f8259efd9cbdcc8db35a64e0a7e88534030991d9234bfe"`
[INFO] running `"docker" "rm" "-f" "ba0f4fbcbb67273ed0f8259efd9cbdcc8db35a64e0a7e88534030991d9234bfe"`
[INFO] [stdout] ba0f4fbcbb67273ed0f8259efd9cbdcc8db35a64e0a7e88534030991d9234bfe
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-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" "+41997647ba6a77908f6ef64401414feb00bccf16" "test" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] c932cf8503ac5d85ceba90954e6416984806ce1043b6ee21a827101f1c511e96
[INFO] running `"docker" "start" "-a" "c932cf8503ac5d85ceba90954e6416984806ce1043b6ee21a827101f1c511e96"`
[INFO] [stderr] warning: unnecessary braces around block return value
[INFO] [stderr]   --> examples/custom_2_players.rs:15:38
[INFO] [stderr]    |
[INFO] [stderr] 15 |     static ref AB_PARSER: ABParser = { ABParser::new() };
[INFO] [stderr]    |                                      ^^^^^^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_braces)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.11s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/bulls_and_cows-fb038e21241f7f87
[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]      Running /opt/rustwide/target/debug/deps/ab_parser-0cfc9950f82586f9
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test parse_xayb ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/host-54ef7ee421fdca29
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test known_answer ... ok
[INFO] [stdout] test random_answer ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests bulls-and-cows
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs -  (line 13) ... 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" "c932cf8503ac5d85ceba90954e6416984806ce1043b6ee21a827101f1c511e96"`
[INFO] running `"docker" "rm" "-f" "c932cf8503ac5d85ceba90954e6416984806ce1043b6ee21a827101f1c511e96"`
[INFO] [stdout] c932cf8503ac5d85ceba90954e6416984806ce1043b6ee21a827101f1c511e96