[INFO] fetching crate rvs 0.5.0...
[INFO] testing rvs-0.5.0 against beta-2021-01-01 for beta-1.50-1
[INFO] extracting crate rvs 0.5.0 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate rvs 0.5.0 on toolchain beta-2021-01-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rvs 0.5.0
[INFO] finished tweaking crates.io crate rvs 0.5.0
[INFO] tweaked toml for crates.io crate rvs 0.5.0 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 70352000a8e4a6c1708bf9754537c7b6937e90d719008bd81f0fc0d78dd1dc6c
[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" "70352000a8e4a6c1708bf9754537c7b6937e90d719008bd81f0fc0d78dd1dc6c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "70352000a8e4a6c1708bf9754537c7b6937e90d719008bd81f0fc0d78dd1dc6c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "70352000a8e4a6c1708bf9754537c7b6937e90d719008bd81f0fc0d78dd1dc6c", kill_on_drop: false }`
[INFO] [stdout] 70352000a8e4a6c1708bf9754537c7b6937e90d719008bd81f0fc0d78dd1dc6c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a4f21cc6feaf12299616bddefa78d21e2a8111d5aa0a632da868126110e88c65
[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" "a4f21cc6feaf12299616bddefa78d21e2a8111d5aa0a632da868126110e88c65", kill_on_drop: false }`
[INFO] [stderr]    Compiling peg-runtime v0.6.3
[INFO] [stderr]    Compiling rand_pcg v0.2.1
[INFO] [stderr]    Compiling peg-macros v0.6.3
[INFO] [stderr]    Compiling peg v0.6.3
[INFO] [stderr]    Compiling rvs-parser v0.5.0
[INFO] [stderr]    Compiling rvs v0.5.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.03s
[INFO] running `Command { std: "docker" "inspect" "a4f21cc6feaf12299616bddefa78d21e2a8111d5aa0a632da868126110e88c65", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a4f21cc6feaf12299616bddefa78d21e2a8111d5aa0a632da868126110e88c65", kill_on_drop: false }`
[INFO] [stdout] a4f21cc6feaf12299616bddefa78d21e2a8111d5aa0a632da868126110e88c65
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 78a01d623b7a75b17d91ed83c5370f493aaa4aebe1643db8461e438d5f3eff76
[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" "78a01d623b7a75b17d91ed83c5370f493aaa4aebe1643db8461e438d5f3eff76", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling rvs v0.5.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 14.08s
[INFO] running `Command { std: "docker" "inspect" "78a01d623b7a75b17d91ed83c5370f493aaa4aebe1643db8461e438d5f3eff76", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "78a01d623b7a75b17d91ed83c5370f493aaa4aebe1643db8461e438d5f3eff76", kill_on_drop: false }`
[INFO] [stdout] 78a01d623b7a75b17d91ed83c5370f493aaa4aebe1643db8461e438d5f3eff76
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "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] 11d0510aa12fd638d75c990aae4bceb069421461dade294e2c7029d97ec6bf9f
[INFO] running `Command { std: "docker" "start" "-a" "11d0510aa12fd638d75c990aae4bceb069421461dade294e2c7029d97ec6bf9f", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/rvs-5699679c6dd00cb8
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test types::range::tests::range::full_range ... ignored
[INFO] [stdout] test types::range::tests::range::basic ... ok
[INFO] [stdout] test types::range::tests::range::max_max ... ok
[INFO] [stdout] test types::weighted::tests::test_populate_pool ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 1 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/display-3c827915a5e1854b
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/done-8b28dafcdc6a8913
[INFO] [stdout] test multiple ... ok
[INFO] [stdout] test precendence ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.03s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test done_defaults_to_false ... ok
[INFO] [stdout] test always_done ... ok
[INFO] [stdout] test done_causes_advance_to_next_subexpr ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/lazyness-0b3cd0dbc191314f
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test type_arguments ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/once-f571e63896d799be
[INFO] [stdout] test done_defaults_to_false ... ok
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/operations-3f2faed706c72aee
[INFO] [stdout] test yields_constant_value_and_always_done ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 7 tests
[INFO] [stdout] test overflow_neg ... ok
[INFO] [stdout] test overflow_add ... ok
[INFO] [stdout] test overflow_mul ... ok
[INFO] [stdout] test overflow_shl ... ok
[INFO] [stdout] test overflow_shr ... ok
[INFO] [stdout] test overflow_sub ... ok
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/parse-021d3a3fb874c23a
[INFO] [stdout] test yields_sum ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 7 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.09s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test basic ... 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]      Running /opt/rustwide/target/debug/deps/pattern-2d7a60cb14c2074d
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test selects_another_subexpr_when_current_subexpr_done ... ok
[INFO] [stdout] test yields_a_repeating_pattern ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/range-35e9255aad27fcf6
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test reverse_limits ... ok
[INFO] [stdout] test equal_limits ... ok
[INFO] [stdout] test done_after_each_next ... ok
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/readme-590f25f1e6a5322d
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test readme ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/repl-2683da00bd7ac3ce
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test basic ... 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]      Running /opt/rustwide/target/debug/deps/sample_with_replacement-550fdcf3faf80641
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test selects_another_subexpr_when_current_subexpr_done ... ok
[INFO] [stdout] test basic ... ok
[INFO] [stdout] test done_when_sub_expr_done ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.03s
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/sample_without_replacement-b9a2dbcb8072b09c
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test done_when_all_done ... ok
[INFO] [stdout] test done_when_all_done2 ... ok
[INFO] [stdout] test yields_each_value_once_per_cycle ... ok
[INFO] [stdout] test selects_another_subexpr_when_current_subexpr_done ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/sequence-107a13856f535749
[INFO] [stdout] 
[INFO] [stdout] running 9 tests
[INFO] [stdout] test args_evaluated_every_cycle ... ok
[INFO] [stdout] test increment_skips_last ... ok
[INFO] [stdout] test last ... ok
[INFO] [stdout] test decrement ... ok
[INFO] [stdout] test negative_increment_skips_last ... ok
[INFO] [stdout] test zero_last ... ok
[INFO] [stdout] test first_last_increment ... ok
[INFO] [stdout] test first_last ... ok
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/variables_in_expressions-bb19321869075a06
[INFO] [stdout] test zero_increment ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 9 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.12s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test copy ... ok
[INFO] [stdout] test next_done ... ok
[INFO] [stdout] test next_pattern ... ok
[INFO] [stdout] test next ... ok
[INFO] [stdout] test copy_pattern ... ok
[INFO] [stdout] test prev ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.07s
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/weighted_sample_with_replacement-6928f008cfa364a5
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test distribution ... ok
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/weighted_sample_without_replacement-7631cd8011eea211
[INFO] [stdout] test done_when_sub_expr_done ... ok
[INFO] [stdout] test selects_another_subexpr_when_current_subexpr_done ... 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] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test distribution ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests rvs
[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" "11d0510aa12fd638d75c990aae4bceb069421461dade294e2c7029d97ec6bf9f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "11d0510aa12fd638d75c990aae4bceb069421461dade294e2c7029d97ec6bf9f", kill_on_drop: false }`
[INFO] [stdout] 11d0510aa12fd638d75c990aae4bceb069421461dade294e2c7029d97ec6bf9f