[INFO] fetching crate reservoir-sampler 0.1.0...
[INFO] testing reservoir-sampler-0.1.0 against master#99e3aef02079e9c10583638520cd0c134dc3a01d for pr-85530
[INFO] extracting crate reservoir-sampler 0.1.0 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate reservoir-sampler 0.1.0 on toolchain 99e3aef02079e9c10583638520cd0c134dc3a01d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "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-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "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-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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 28f2be3395ea3d0a5584d4f83e0557a61ae9742ad20bdf85e46d78b21d90da81
[INFO] running `Command { std: "docker" "start" "-a" "28f2be3395ea3d0a5584d4f83e0557a61ae9742ad20bdf85e46d78b21d90da81", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "28f2be3395ea3d0a5584d4f83e0557a61ae9742ad20bdf85e46d78b21d90da81", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "28f2be3395ea3d0a5584d4f83e0557a61ae9742ad20bdf85e46d78b21d90da81", kill_on_drop: false }`
[INFO] [stdout] 28f2be3395ea3d0a5584d4f83e0557a61ae9742ad20bdf85e46d78b21d90da81
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 965ac32d2cbae4570d5f5e4bc3585df49df6fb65de36bbd720e69777e8a9c4c2
[INFO] running `Command { std: "docker" "start" "-a" "965ac32d2cbae4570d5f5e4bc3585df49df6fb65de36bbd720e69777e8a9c4c2", kill_on_drop: false }`
[INFO] [stderr]    Compiling getrandom v0.2.3
[INFO] [stderr]    Compiling rand_core v0.6.2
[INFO] [stderr]    Compiling rand_chacha v0.3.0
[INFO] [stderr]    Compiling rand v0.8.3
[INFO] [stderr]    Compiling reservoir-sampler v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.93s
[INFO] running `Command { std: "docker" "inspect" "965ac32d2cbae4570d5f5e4bc3585df49df6fb65de36bbd720e69777e8a9c4c2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "965ac32d2cbae4570d5f5e4bc3585df49df6fb65de36bbd720e69777e8a9c4c2", kill_on_drop: false }`
[INFO] [stdout] 965ac32d2cbae4570d5f5e4bc3585df49df6fb65de36bbd720e69777e8a9c4c2
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 48b79b799d519d96f8c83bda07f1589dcfd7f07bd7d6897438fe4acc7fc8e994
[INFO] running `Command { std: "docker" "start" "-a" "48b79b799d519d96f8c83bda07f1589dcfd7f07bd7d6897438fe4acc7fc8e994", kill_on_drop: false }`
[INFO] [stderr]    Compiling reservoir-sampler v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.34s
[INFO] running `Command { std: "docker" "inspect" "48b79b799d519d96f8c83bda07f1589dcfd7f07bd7d6897438fe4acc7fc8e994", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "48b79b799d519d96f8c83bda07f1589dcfd7f07bd7d6897438fe4acc7fc8e994", kill_on_drop: false }`
[INFO] [stdout] 48b79b799d519d96f8c83bda07f1589dcfd7f07bd7d6897438fe4acc7fc8e994
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] b4d51bbef6175d24d9ba35e350a305b01a3752f06c634c74b5b8d6e258ff1a2b
[INFO] running `Command { std: "docker" "start" "-a" "b4d51bbef6175d24d9ba35e350a305b01a3752f06c634c74b5b8d6e258ff1a2b", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/reservoir_sampler-2689443141743297)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[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] [stderr]    Doc-tests reservoir-sampler
[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" "b4d51bbef6175d24d9ba35e350a305b01a3752f06c634c74b5b8d6e258ff1a2b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b4d51bbef6175d24d9ba35e350a305b01a3752f06c634c74b5b8d6e258ff1a2b", kill_on_drop: false }`
[INFO] [stdout] b4d51bbef6175d24d9ba35e350a305b01a3752f06c634c74b5b8d6e258ff1a2b