[INFO] cloning repository https://github.com/vikramjakhr/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/vikramjakhr/guessing_game" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvikramjakhr%2Fguessing_game", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvikramjakhr%2Fguessing_game'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 1b3131424dc9bdcc8e8b9168baee564202946834
[INFO] testing vikramjakhr/guessing_game against master#5d5ff84130da0d74c6ece368dbe821d8f83fa526 for pr-79296
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvikramjakhr%2Fguessing_game" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/vikramjakhr/guessing_game on toolchain 5d5ff84130da0d74c6ece368dbe821d8f83fa526
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/vikramjakhr/guessing_game
[INFO] finished tweaking git repo https://github.com/vikramjakhr/guessing_game
[INFO] tweaked toml for git repo https://github.com/vikramjakhr/guessing_game written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/vikramjakhr/guessing_game already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "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] 251b4334af7b634af88ab2fa2d8810b193ae38bc8ffc096ce8e3d94d3b65bef2
[INFO] running `Command { std: "docker" "start" "-a" "251b4334af7b634af88ab2fa2d8810b193ae38bc8ffc096ce8e3d94d3b65bef2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "251b4334af7b634af88ab2fa2d8810b193ae38bc8ffc096ce8e3d94d3b65bef2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "251b4334af7b634af88ab2fa2d8810b193ae38bc8ffc096ce8e3d94d3b65bef2", kill_on_drop: false }`
[INFO] [stdout] 251b4334af7b634af88ab2fa2d8810b193ae38bc8ffc096ce8e3d94d3b65bef2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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=forbid" "-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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 738b82ff72828abfc3eba5e79e22ebad0ce11040b94193a004048d0dee68f779
[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" "738b82ff72828abfc3eba5e79e22ebad0ce11040b94193a004048d0dee68f779", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.62
[INFO] [stderr]    Compiling getrandom v0.1.10
[INFO] [stderr]    Compiling ppv-lite86 v0.2.5
[INFO] [stderr]    Compiling c2-chacha v0.2.2
[INFO] [stderr]    Compiling rand_core v0.5.0
[INFO] [stderr]    Compiling rand_chacha v0.2.1
[INFO] [stderr]    Compiling rand v0.7.0
[INFO] [stderr]    Compiling guessing_game v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `Error`
[INFO] [stdout]  --> src/main.rs:3:17
[INFO] [stdout]   |
[INFO] [stdout] 3 | use rand::{Rng, Error};
[INFO] [stdout]   |                 ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.69s
[INFO] running `Command { std: "docker" "inspect" "738b82ff72828abfc3eba5e79e22ebad0ce11040b94193a004048d0dee68f779", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "738b82ff72828abfc3eba5e79e22ebad0ce11040b94193a004048d0dee68f779", kill_on_drop: false }`
[INFO] [stdout] 738b82ff72828abfc3eba5e79e22ebad0ce11040b94193a004048d0dee68f779
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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=forbid" "-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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 140fc155d2328385486949ff93d64b87da4f509c1b16aea16bc425f59ffbc8da
[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" "140fc155d2328385486949ff93d64b87da4f509c1b16aea16bc425f59ffbc8da", kill_on_drop: false }`
[INFO] [stderr]    Compiling guessing_game v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `Error`
[INFO] [stdout]  --> src/main.rs:3:17
[INFO] [stdout]   |
[INFO] [stdout] 3 | use rand::{Rng, Error};
[INFO] [stdout]   |                 ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.81s
[INFO] running `Command { std: "docker" "inspect" "140fc155d2328385486949ff93d64b87da4f509c1b16aea16bc425f59ffbc8da", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "140fc155d2328385486949ff93d64b87da4f509c1b16aea16bc425f59ffbc8da", kill_on_drop: false }`
[INFO] [stdout] 140fc155d2328385486949ff93d64b87da4f509c1b16aea16bc425f59ffbc8da
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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=forbid" "-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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 84788318ba261ea6427c9728af55797498ab74ce52bb8ed8e6f8af230422dfbd
[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" "84788318ba261ea6427c9728af55797498ab74ce52bb8ed8e6f8af230422dfbd", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr] warning: unused import: `Error`
[INFO] [stdout] running 0 tests
[INFO] [stderr]  --> src/main.rs:3:17
[INFO] [stdout] 
[INFO] [stderr]   |
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stderr] 3 | use rand::{Rng, Error};
[INFO] [stdout] 
[INFO] [stderr]   |                 ^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/guessing_game-2f2c1f8cec87fac2
[INFO] running `Command { std: "docker" "inspect" "84788318ba261ea6427c9728af55797498ab74ce52bb8ed8e6f8af230422dfbd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "84788318ba261ea6427c9728af55797498ab74ce52bb8ed8e6f8af230422dfbd", kill_on_drop: false }`
[INFO] [stdout] 84788318ba261ea6427c9728af55797498ab74ce52bb8ed8e6f8af230422dfbd