[INFO] cloning repository https://github.com/robert-wallis/rust-guessing-game
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/robert-wallis/rust-guessing-game" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frobert-wallis%2Frust-guessing-game", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frobert-wallis%2Frust-guessing-game'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 1b4c65f9decaae81d8101f3a6b27711c88907ded
[INFO] testing robert-wallis/rust-guessing-game against 1.49.0 for beta-1.50-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frobert-wallis%2Frust-guessing-game" "/workspace/builds/worker-1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/robert-wallis/rust-guessing-game on toolchain 1.49.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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-1/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 `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 3a2585cf19bc15e56b3c1d31c76f04f69e9d3ac8bfba7dc22559c4ea472188c8
[INFO] running `Command { std: "docker" "start" "-a" "3a2585cf19bc15e56b3c1d31c76f04f69e9d3ac8bfba7dc22559c4ea472188c8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3a2585cf19bc15e56b3c1d31c76f04f69e9d3ac8bfba7dc22559c4ea472188c8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3a2585cf19bc15e56b3c1d31c76f04f69e9d3ac8bfba7dc22559c4ea472188c8", kill_on_drop: false }`
[INFO] [stdout] 3a2585cf19bc15e56b3c1d31c76f04f69e9d3ac8bfba7dc22559c4ea472188c8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "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" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 450a8288c4d6cb84beece951aa6087529c74af784004af83f0b8fac7018f2c0d
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "450a8288c4d6cb84beece951aa6087529c74af784004af83f0b8fac7018f2c0d", kill_on_drop: false }`
[INFO] [stderr]    Compiling rand_core v0.3.0
[INFO] [stderr]    Compiling libc v0.2.44
[INFO] [stderr]    Compiling rand_pcg v0.1.1
[INFO] [stderr]    Compiling rand_chacha v0.1.0
[INFO] [stderr]    Compiling rand v0.6.1
[INFO] [stderr]    Compiling rand_hc v0.1.0
[INFO] [stderr]    Compiling rand_isaac v0.1.1
[INFO] [stderr]    Compiling rand_xorshift v0.1.0
[INFO] [stderr]    Compiling guessing_game v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/main.rs:59:43
[INFO] [stdout]    |
[INFO] [stdout] 59 | fn test_guesser(name: &str, guesser: &mut Guesser) {
[INFO] [stdout]    |                                           ^^^^^^^ help: use `dyn`: `dyn Guesser`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/main.rs:93:19
[INFO] [stdout]    |
[INFO] [stdout] 93 |     guesser: &mut Guesser,
[INFO] [stdout]    |                   ^^^^^^^ help: use `dyn`: `dyn Guesser`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/main.rs:94:21
[INFO] [stdout]    |
[INFO] [stdout] 94 |     displayer: &mut Displayer,
[INFO] [stdout]    |                     ^^^^^^^^^ help: use `dyn`: `dyn Displayer`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/main.rs:95:18
[INFO] [stdout]    |
[INFO] [stdout] 95 |     random: &mut RandomGenerator,
[INFO] [stdout]    |                  ^^^^^^^^^^^^^^^ help: use `dyn`: `dyn RandomGenerator`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.29s
[INFO] running `Command { std: "docker" "inspect" "450a8288c4d6cb84beece951aa6087529c74af784004af83f0b8fac7018f2c0d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "450a8288c4d6cb84beece951aa6087529c74af784004af83f0b8fac7018f2c0d", kill_on_drop: false }`
[INFO] [stdout] 450a8288c4d6cb84beece951aa6087529c74af784004af83f0b8fac7018f2c0d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "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" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bad619c02b4d47175a085feadeb61d3ec3714601bb8418d56f07f341a735146f
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "bad619c02b4d47175a085feadeb61d3ec3714601bb8418d56f07f341a735146f", kill_on_drop: false }`
[INFO] [stderr]    Compiling guessing_game v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/main.rs:59:43
[INFO] [stdout]    |
[INFO] [stdout] 59 | fn test_guesser(name: &str, guesser: &mut Guesser) {
[INFO] [stdout]    |                                           ^^^^^^^ help: use `dyn`: `dyn Guesser`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/main.rs:93:19
[INFO] [stdout]    |
[INFO] [stdout] 93 |     guesser: &mut Guesser,
[INFO] [stdout]    |                   ^^^^^^^ help: use `dyn`: `dyn Guesser`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/main.rs:94:21
[INFO] [stdout]    |
[INFO] [stdout] 94 |     displayer: &mut Displayer,
[INFO] [stdout]    |                     ^^^^^^^^^ help: use `dyn`: `dyn Displayer`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/main.rs:95:18
[INFO] [stdout]    |
[INFO] [stdout] 95 |     random: &mut RandomGenerator,
[INFO] [stdout]    |                  ^^^^^^^^^^^^^^^ help: use `dyn`: `dyn RandomGenerator`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.65s
[INFO] running `Command { std: "docker" "inspect" "bad619c02b4d47175a085feadeb61d3ec3714601bb8418d56f07f341a735146f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bad619c02b4d47175a085feadeb61d3ec3714601bb8418d56f07f341a735146f", kill_on_drop: false }`
[INFO] [stdout] bad619c02b4d47175a085feadeb61d3ec3714601bb8418d56f07f341a735146f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "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" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 6933e9593d60da9dcaa2c7b95d2d2c51642d7594f7b7dba9d4d478f2e05f67ea
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "6933e9593d60da9dcaa2c7b95d2d2c51642d7594f7b7dba9d4d478f2e05f67ea", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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 3.06s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/guessing_game-80601c24d9bac318
[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 `Command { std: "docker" "inspect" "6933e9593d60da9dcaa2c7b95d2d2c51642d7594f7b7dba9d4d478f2e05f67ea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6933e9593d60da9dcaa2c7b95d2d2c51642d7594f7b7dba9d4d478f2e05f67ea", kill_on_drop: false }`
[INFO] [stdout] 6933e9593d60da9dcaa2c7b95d2d2c51642d7594f7b7dba9d4d478f2e05f67ea