[INFO] updating cached repository https://github.com/robert-wallis/rust-guessing-game
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 1b4c65f9decaae81d8101f3a6b27711c88907ded
[INFO] testing robert-wallis/rust-guessing-game against beta-2020-06-03 for beta-1.45-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frobert-wallis%2Frust-guessing-game" "/workspace/builds/worker-4/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/robert-wallis/rust-guessing-game on toolchain beta-2020-06-03
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/robert-wallis/rust-guessing-game
[INFO] finished tweaking git repo https://github.com/robert-wallis/rust-guessing-game
[INFO] tweaked toml for git repo https://github.com/robert-wallis/rust-guessing-game written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/robert-wallis/rust-guessing-game already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "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=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" "+beta-2020-06-03" "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] c41a81ea0b4d97577fec8e0c0d92e37a170be5921b5b14c074c8ec8ea8507dd9
[INFO] running `"docker" "start" "-a" "c41a81ea0b4d97577fec8e0c0d92e37a170be5921b5b14c074c8ec8ea8507dd9"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling libc v0.2.44
[INFO] [stderr]    Compiling rand_xorshift v0.1.0
[INFO] [stderr]    Compiling rand_chacha v0.1.0
[INFO] [stderr]    Compiling rand v0.6.1
[INFO] [stderr]    Compiling guessing_game v0.1.0 (/opt/rustwide/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] warning: 4 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.54s
[INFO] running `"docker" "inspect" "c41a81ea0b4d97577fec8e0c0d92e37a170be5921b5b14c074c8ec8ea8507dd9"`
[INFO] running `"docker" "rm" "-f" "c41a81ea0b4d97577fec8e0c0d92e37a170be5921b5b14c074c8ec8ea8507dd9"`
[INFO] [stdout] c41a81ea0b4d97577fec8e0c0d92e37a170be5921b5b14c074c8ec8ea8507dd9
[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=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" "+beta-2020-06-03" "test" "--frozen" "--no-run"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] e1d49f5a3da981ffd8aee4ec5b93b24be968aa544545a8e66495323a96c1009d
[INFO] running `"docker" "start" "-a" "e1d49f5a3da981ffd8aee4ec5b93b24be968aa544545a8e66495323a96c1009d"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling guessing_game v0.1.0 (/opt/rustwide/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] warning: 4 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.81s
[INFO] running `"docker" "inspect" "e1d49f5a3da981ffd8aee4ec5b93b24be968aa544545a8e66495323a96c1009d"`
[INFO] running `"docker" "rm" "-f" "e1d49f5a3da981ffd8aee4ec5b93b24be968aa544545a8e66495323a96c1009d"`
[INFO] [stdout] e1d49f5a3da981ffd8aee4ec5b93b24be968aa544545a8e66495323a96c1009d
[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=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" "+beta-2020-06-03" "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] bb09e2aaa888dff8762c5d4aa159a5c8d4c27360bf4168824ae0477721ea9101
[INFO] running `"docker" "start" "-a" "bb09e2aaa888dff8762c5d4aa159a5c8d4c27360bf4168824ae0477721ea9101"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[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] warning: 4 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/guessing_game-3d37b91744aa4003
[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" "bb09e2aaa888dff8762c5d4aa159a5c8d4c27360bf4168824ae0477721ea9101"`
[INFO] running `"docker" "rm" "-f" "bb09e2aaa888dff8762c5d4aa159a5c8d4c27360bf4168824ae0477721ea9101"`
[INFO] [stdout] bb09e2aaa888dff8762c5d4aa159a5c8d4c27360bf4168824ae0477721ea9101