[INFO] fetching crate reservoir-sampler 0.1.0...
[INFO] testing reservoir-sampler-0.1.0 against beta-2022-04-10 for beta-1.61-1
[INFO] extracting crate reservoir-sampler 0.1.0 into /workspace/builds/worker-49/source
[INFO] validating manifest of crates.io crate reservoir-sampler 0.1.0 on toolchain beta-2022-04-10
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate reservoir-sampler 0.1.0
[INFO] finished tweaking crates.io crate reservoir-sampler 0.1.0
[INFO] tweaked toml for crates.io crate reservoir-sampler 0.1.0 written to /workspace/builds/worker-49/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "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-49/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-49/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0e57ac74b1903e8cd9663bc83b588549a4756c5713da15e5f1b11314688d1bac
[INFO] running `Command { std: "docker" "start" "-a" "0e57ac74b1903e8cd9663bc83b588549a4756c5713da15e5f1b11314688d1bac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0e57ac74b1903e8cd9663bc83b588549a4756c5713da15e5f1b11314688d1bac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0e57ac74b1903e8cd9663bc83b588549a4756c5713da15e5f1b11314688d1bac", kill_on_drop: false }`
[INFO] [stdout] 0e57ac74b1903e8cd9663bc83b588549a4756c5713da15e5f1b11314688d1bac
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-49/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-49/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 44e98f4505971be259b11ba800c8668e1ee5439023d029b09a9727a82cafbe10
[INFO] running `Command { std: "docker" "start" "-a" "44e98f4505971be259b11ba800c8668e1ee5439023d029b09a9727a82cafbe10", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.123
[INFO] [stderr]    Compiling getrandom v0.2.6
[INFO] [stderr]    Compiling rand_core v0.6.3
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling reservoir-sampler v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.62s
[INFO] running `Command { std: "docker" "inspect" "44e98f4505971be259b11ba800c8668e1ee5439023d029b09a9727a82cafbe10", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "44e98f4505971be259b11ba800c8668e1ee5439023d029b09a9727a82cafbe10", kill_on_drop: false }`
[INFO] [stdout] 44e98f4505971be259b11ba800c8668e1ee5439023d029b09a9727a82cafbe10
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-49/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-49/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9bb3f7a90ca9d511f2957a66444d6485999b2f05642b4d3b39ba5f069955b0c6
[INFO] running `Command { std: "docker" "start" "-a" "9bb3f7a90ca9d511f2957a66444d6485999b2f05642b4d3b39ba5f069955b0c6", kill_on_drop: false }`
[INFO] [stderr]    Compiling reservoir-sampler v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.97s
[INFO] [stderr]   Executable unittests src/lib.rs (/opt/rustwide/target/debug/deps/reservoir_sampler-af9c26bb4baa22a4)
[INFO] running `Command { std: "docker" "inspect" "9bb3f7a90ca9d511f2957a66444d6485999b2f05642b4d3b39ba5f069955b0c6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9bb3f7a90ca9d511f2957a66444d6485999b2f05642b4d3b39ba5f069955b0c6", kill_on_drop: false }`
[INFO] [stdout] 9bb3f7a90ca9d511f2957a66444d6485999b2f05642b4d3b39ba5f069955b0c6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-49/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-49/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 409a27dc11c621a2c245e89a147d5be2bcbc3e2ce52b27c107172761e2a13302
[INFO] running `Command { std: "docker" "start" "-a" "409a27dc11c621a2c245e89a147d5be2bcbc3e2ce52b27c107172761e2a13302", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 4.44s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/reservoir_sampler-af9c26bb4baa22a4)
[INFO] [stdout] running 1 test
[INFO] [stderr]    Doc-tests reservoir-sampler
[INFO] [stdout] test tests::test ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[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; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "409a27dc11c621a2c245e89a147d5be2bcbc3e2ce52b27c107172761e2a13302", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "409a27dc11c621a2c245e89a147d5be2bcbc3e2ce52b27c107172761e2a13302", kill_on_drop: false }`
[INFO] [stdout] 409a27dc11c621a2c245e89a147d5be2bcbc3e2ce52b27c107172761e2a13302