[INFO] fetching crate random_choice 0.3.2...
[INFO] testing random_choice-0.3.2 against 1.49.0 for beta-1.50-1
[INFO] extracting crate random_choice 0.3.2 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate random_choice 0.3.2 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 crates.io crate random_choice 0.3.2
[INFO] finished tweaking crates.io crate random_choice 0.3.2
[INFO] tweaked toml for crates.io crate random_choice 0.3.2 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[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-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "+1.49.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 838d0d73b076844790bcaadb9740d66685e12064c05477743302245819defe8b
[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" "838d0d73b076844790bcaadb9740d66685e12064c05477743302245819defe8b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "838d0d73b076844790bcaadb9740d66685e12064c05477743302245819defe8b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "838d0d73b076844790bcaadb9740d66685e12064c05477743302245819defe8b", kill_on_drop: false }`
[INFO] [stdout] 838d0d73b076844790bcaadb9740d66685e12064c05477743302245819defe8b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0b6d5a3c590ddafe841a9ebe71a5d0ab84daa518f0967308908c94c9dbcc2689
[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" "0b6d5a3c590ddafe841a9ebe71a5d0ab84daa518f0967308908c94c9dbcc2689", kill_on_drop: false }`
[INFO] [stderr]    Compiling rand v0.4.6
[INFO] [stderr]    Compiling rand v0.3.23
[INFO] [stderr]    Compiling random_choice v0.3.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.75s
[INFO] running `Command { std: "docker" "inspect" "0b6d5a3c590ddafe841a9ebe71a5d0ab84daa518f0967308908c94c9dbcc2689", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0b6d5a3c590ddafe841a9ebe71a5d0ab84daa518f0967308908c94c9dbcc2689", kill_on_drop: false }`
[INFO] [stdout] 0b6d5a3c590ddafe841a9ebe71a5d0ab84daa518f0967308908c94c9dbcc2689
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 24207958b2e4afbfcd25a949342f924d582e444cb878ba146a23817e0d85fc8e
[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" "24207958b2e4afbfcd25a949342f924d582e444cb878ba146a23817e0d85fc8e", kill_on_drop: false }`
[INFO] [stderr]    Compiling random_choice v0.3.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.79s
[INFO] running `Command { std: "docker" "inspect" "24207958b2e4afbfcd25a949342f924d582e444cb878ba146a23817e0d85fc8e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "24207958b2e4afbfcd25a949342f924d582e444cb878ba146a23817e0d85fc8e", kill_on_drop: false }`
[INFO] [stdout] 24207958b2e4afbfcd25a949342f924d582e444cb878ba146a23817e0d85fc8e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen", 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] f2da784360177a408e62eae1aef264ce72b9611dcdff94a25e4e49c99ebe7663
[INFO] running `Command { std: "docker" "start" "-a" "f2da784360177a408e62eae1aef264ce72b9611dcdff94a25e4e49c99ebe7663", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stdout] running 0 tests
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/random_choice-56b617060f75b0a7
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/lib-58ff11e2ab8a59b3
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 11 tests
[INFO] [stdout] test tests::test_random_choice_weights_zero_f32 ... ok
[INFO] [stdout] test tests::test_random_choice_weights_zero_f64 ... ok
[INFO] [stdout] test tests::test_random_choice_small_n_f64 ... ok
[INFO] [stdout] test tests::test_random_choice_zero_elements_f64 ... ok
[INFO] [stdout] test tests::test_random_choice_samples_zero_f64 ... ok
[INFO] [stdout] test tests::test_random_choice_small_n_f32 ... ok
[INFO] [stdout] test tests::test_random_choice_zero_elements_f32 ... ok
[INFO] [stdout] test tests::test_random_choice_with_seed_f64 ... ok
[INFO] [stdout] test tests::test_random_choice_samples_zero_f32 ... ok
[INFO] [stdout] test tests::test_random_choice_f32 ... ok
[INFO] [stdout] test tests::test_random_choice_f64 ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 11 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests random_choice
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test src/lib.rs - (line 20) ... ok
[INFO] [stdout] test src/lib.rs - (line 37) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "f2da784360177a408e62eae1aef264ce72b9611dcdff94a25e4e49c99ebe7663", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f2da784360177a408e62eae1aef264ce72b9611dcdff94a25e4e49c99ebe7663", kill_on_drop: false }`
[INFO] [stdout] f2da784360177a408e62eae1aef264ce72b9611dcdff94a25e4e49c99ebe7663