[INFO] updating cached repository robert-wallis/rust-guessing-game
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/robert-wallis/rust-guessing-game
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/robert-wallis/rust-guessing-game" "work/ex/beta-1.38-1/sources/1.37.0/gh/robert-wallis/rust-guessing-game"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/robert-wallis/rust-guessing-game'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/robert-wallis/rust-guessing-game" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/robert-wallis/rust-guessing-game"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/robert-wallis/rust-guessing-game'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 1b4c65f9decaae81d8101f3a6b27711c88907ded
[INFO] sha for GitHub repo robert-wallis/rust-guessing-game: 1b4c65f9decaae81d8101f3a6b27711c88907ded
[INFO] validating manifest of robert-wallis/rust-guessing-game 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 robert-wallis/rust-guessing-game 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 robert-wallis/rust-guessing-game
[INFO] finished frobbing robert-wallis/rust-guessing-game
[INFO] frobbed toml for robert-wallis/rust-guessing-game written to work/ex/beta-1.38-1/sources/1.37.0/gh/robert-wallis/rust-guessing-game/Cargo.toml
[INFO] started frobbing robert-wallis/rust-guessing-game
[INFO] finished frobbing robert-wallis/rust-guessing-game
[INFO] frobbed toml for robert-wallis/rust-guessing-game written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/robert-wallis/rust-guessing-game/Cargo.toml
[INFO] crate robert-wallis/rust-guessing-game 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 robert-wallis/rust-guessing-game 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-6/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/robert-wallis/rust-guessing-game:/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] 0786459cd38db7ed6bbdfde188b183791357cb6c89eaf292a6a8146a56c175ec
[INFO] running `"docker" "start" "-a" "0786459cd38db7ed6bbdfde188b183791357cb6c89eaf292a6a8146a56c175ec"`
[INFO] [stderr]    Compiling libc v0.2.44
[INFO] [stderr]    Compiling rand v0.6.1
[INFO] [stderr]    Compiling guessing_game v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/main.rs:59:43
[INFO] [stderr]    |
[INFO] [stderr] 59 | fn test_guesser(name: &str, guesser: &mut Guesser) {
[INFO] [stderr]    |                                           ^^^^^^^ help: use `dyn`: `dyn Guesser`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/main.rs:93:19
[INFO] [stderr]    |
[INFO] [stderr] 93 |     guesser: &mut Guesser,
[INFO] [stderr]    |                   ^^^^^^^ help: use `dyn`: `dyn Guesser`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/main.rs:94:21
[INFO] [stderr]    |
[INFO] [stderr] 94 |     displayer: &mut Displayer,
[INFO] [stderr]    |                     ^^^^^^^^^ help: use `dyn`: `dyn Displayer`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/main.rs:95:18
[INFO] [stderr]    |
[INFO] [stderr] 95 |     random: &mut RandomGenerator,
[INFO] [stderr]    |                  ^^^^^^^^^^^^^^^ help: use `dyn`: `dyn RandomGenerator`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.08s
[INFO] running `"docker" "inspect" "0786459cd38db7ed6bbdfde188b183791357cb6c89eaf292a6a8146a56c175ec"`
[INFO] running `"docker" "rm" "-f" "0786459cd38db7ed6bbdfde188b183791357cb6c89eaf292a6a8146a56c175ec"`
[INFO] [stdout] 0786459cd38db7ed6bbdfde188b183791357cb6c89eaf292a6a8146a56c175ec
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/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/robert-wallis/rust-guessing-game:/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] 414289dbb3c757711734165e917b2abc12cbf95c2e81cb8badfb8e12289826ee
[INFO] running `"docker" "start" "-a" "414289dbb3c757711734165e917b2abc12cbf95c2e81cb8badfb8e12289826ee"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling guessing_game v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/main.rs:59:43
[INFO] [stderr]    |
[INFO] [stderr] 59 | fn test_guesser(name: &str, guesser: &mut Guesser) {
[INFO] [stderr]    |                                           ^^^^^^^ help: use `dyn`: `dyn Guesser`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/main.rs:93:19
[INFO] [stderr]    |
[INFO] [stderr] 93 |     guesser: &mut Guesser,
[INFO] [stderr]    |                   ^^^^^^^ help: use `dyn`: `dyn Guesser`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/main.rs:94:21
[INFO] [stderr]    |
[INFO] [stderr] 94 |     displayer: &mut Displayer,
[INFO] [stderr]    |                     ^^^^^^^^^ help: use `dyn`: `dyn Displayer`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/main.rs:95:18
[INFO] [stderr]    |
[INFO] [stderr] 95 |     random: &mut RandomGenerator,
[INFO] [stderr]    |                  ^^^^^^^^^^^^^^^ help: use `dyn`: `dyn RandomGenerator`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.97s
[INFO] running `"docker" "inspect" "414289dbb3c757711734165e917b2abc12cbf95c2e81cb8badfb8e12289826ee"`
[INFO] running `"docker" "rm" "-f" "414289dbb3c757711734165e917b2abc12cbf95c2e81cb8badfb8e12289826ee"`
[INFO] [stdout] 414289dbb3c757711734165e917b2abc12cbf95c2e81cb8badfb8e12289826ee
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/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/robert-wallis/rust-guessing-game:/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] 0cb13edc83c4794d82b549447e4ac561d7a85e9181055b3131d9aeb9ea8697fc
[INFO] running `"docker" "start" "-a" "0cb13edc83c4794d82b549447e4ac561d7a85e9181055b3131d9aeb9ea8697fc"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/guessing_game-310a8a59cb3465c5
[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" "0cb13edc83c4794d82b549447e4ac561d7a85e9181055b3131d9aeb9ea8697fc"`
[INFO] running `"docker" "rm" "-f" "0cb13edc83c4794d82b549447e4ac561d7a85e9181055b3131d9aeb9ea8697fc"`
[INFO] [stdout] 0cb13edc83c4794d82b549447e4ac561d7a85e9181055b3131d9aeb9ea8697fc