[INFO] fetching crate roulette 0.3.0...
[INFO] testing roulette-0.3.0 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate roulette 0.3.0 into /workspace/builds/worker-87/source
[INFO] validating manifest of crates.io crate roulette 0.3.0 on toolchain beta-2021-09-08
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate roulette 0.3.0
[INFO] finished tweaking crates.io crate roulette 0.3.0
[INFO] tweaked toml for crates.io crate roulette 0.3.0 written to /workspace/builds/worker-87/source/Cargo.toml
[INFO] crate crates.io crate roulette 0.3.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-87/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-87/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c829ff0c4f756fc8956ab70524e00ddca977f1e9b79633114cfa43b5a1c4ba29
[INFO] running `Command { std: "docker" "start" "-a" "c829ff0c4f756fc8956ab70524e00ddca977f1e9b79633114cfa43b5a1c4ba29", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c829ff0c4f756fc8956ab70524e00ddca977f1e9b79633114cfa43b5a1c4ba29", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c829ff0c4f756fc8956ab70524e00ddca977f1e9b79633114cfa43b5a1c4ba29", kill_on_drop: false }`
[INFO] [stdout] c829ff0c4f756fc8956ab70524e00ddca977f1e9b79633114cfa43b5a1c4ba29
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-87/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-87/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 745ae27735014a9b8a4ff82d7f569d4bb0e2953f26f20ac79af414ab17ffcf03
[INFO] running `Command { std: "docker" "start" "-a" "745ae27735014a9b8a4ff82d7f569d4bb0e2953f26f20ac79af414ab17ffcf03", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.80
[INFO] [stderr]    Compiling getrandom v0.1.15
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling ppv-lite86 v0.2.10
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling roulette v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.39s
[INFO] running `Command { std: "docker" "inspect" "745ae27735014a9b8a4ff82d7f569d4bb0e2953f26f20ac79af414ab17ffcf03", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "745ae27735014a9b8a4ff82d7f569d4bb0e2953f26f20ac79af414ab17ffcf03", kill_on_drop: false }`
[INFO] [stdout] 745ae27735014a9b8a4ff82d7f569d4bb0e2953f26f20ac79af414ab17ffcf03
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-87/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-87/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 45aa1334bbf1c6987bc51715ca0a875bed5f08f1cb49e040dadc1409020c7d48
[INFO] running `Command { std: "docker" "start" "-a" "45aa1334bbf1c6987bc51715ca0a875bed5f08f1cb49e040dadc1409020c7d48", kill_on_drop: false }`
[INFO] [stderr]    Compiling roulette v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.77s
[INFO] running `Command { std: "docker" "inspect" "45aa1334bbf1c6987bc51715ca0a875bed5f08f1cb49e040dadc1409020c7d48", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "45aa1334bbf1c6987bc51715ca0a875bed5f08f1cb49e040dadc1409020c7d48", kill_on_drop: false }`
[INFO] [stdout] 45aa1334bbf1c6987bc51715ca0a875bed5f08f1cb49e040dadc1409020c7d48
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-87/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-87/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] d6c7b835db159d631ca32dda7d2e34b4ff87a9c6e3fd4400cbce78607fe2ebed
[INFO] running `Command { std: "docker" "start" "-a" "d6c7b835db159d631ca32dda7d2e34b4ff87a9c6e3fd4400cbce78607fe2ebed", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.29s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/roulette-77624eade89efad7)
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test tests::most_entries_zero ... ok
[INFO] [stdout] test tests::all_entries_zero - should panic ... ok
[INFO] [stdout] test tests::negative_entry - should panic ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests roulette
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - (line 15) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.74s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "d6c7b835db159d631ca32dda7d2e34b4ff87a9c6e3fd4400cbce78607fe2ebed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d6c7b835db159d631ca32dda7d2e34b4ff87a9c6e3fd4400cbce78607fe2ebed", kill_on_drop: false }`
[INFO] [stdout] d6c7b835db159d631ca32dda7d2e34b4ff87a9c6e3fd4400cbce78607fe2ebed