[INFO] fetching crate wybr 0.0.2...
[INFO] testing wybr-0.0.2 against 1.55.0 for beta-1.56-1
[INFO] extracting crate wybr 0.0.2 into /workspace/builds/worker-14/source
[INFO] validating manifest of crates.io crate wybr 0.0.2 on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate wybr 0.0.2
[INFO] finished tweaking crates.io crate wybr 0.0.2
[INFO] tweaked toml for crates.io crate wybr 0.0.2 written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "+1.55.0" "metadata" "--no-deps" "--format-version=1", 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] 1867c9a6e11aecda7b414c132767bc826774415f9f339e89e61d8431b14edd2e
[INFO] running `Command { std: "docker" "start" "-a" "1867c9a6e11aecda7b414c132767bc826774415f9f339e89e61d8431b14edd2e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1867c9a6e11aecda7b414c132767bc826774415f9f339e89e61d8431b14edd2e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1867c9a6e11aecda7b414c132767bc826774415f9f339e89e61d8431b14edd2e", kill_on_drop: false }`
[INFO] [stdout] 1867c9a6e11aecda7b414c132767bc826774415f9f339e89e61d8431b14edd2e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d3ef3ad3ff23c07b8dd5e7e164b1f460fff1db62532c1ecebcc22a647c78dd1e
[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" "d3ef3ad3ff23c07b8dd5e7e164b1f460fff1db62532c1ecebcc22a647c78dd1e", kill_on_drop: false }`
[INFO] [stderr]    Compiling wybr v0.0.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/io/blt_reader.rs:15:21
[INFO] [stdout]    |
[INFO] [stdout] 15 |     stream: &'a mut BufRead,
[INFO] [stdout]    |                     ^^^^^^^ help: use `dyn`: `dyn BufRead`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/io/blt_reader.rs:19:29
[INFO] [stdout]    |
[INFO] [stdout] 19 |     pub fn new(stream: &mut BufRead) -> BltReader {
[INFO] [stdout]    |                             ^^^^^^^ help: use `dyn`: `dyn BufRead`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.96s
[INFO] running `Command { std: "docker" "inspect" "d3ef3ad3ff23c07b8dd5e7e164b1f460fff1db62532c1ecebcc22a647c78dd1e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d3ef3ad3ff23c07b8dd5e7e164b1f460fff1db62532c1ecebcc22a647c78dd1e", kill_on_drop: false }`
[INFO] [stdout] d3ef3ad3ff23c07b8dd5e7e164b1f460fff1db62532c1ecebcc22a647c78dd1e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fae9f739a96766cc17a59fc0eae1b7ced29b4d566f1cdc24ec85d5bb4d93054e
[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" "fae9f739a96766cc17a59fc0eae1b7ced29b4d566f1cdc24ec85d5bb4d93054e", kill_on_drop: false }`
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/io/blt_reader.rs:15:21
[INFO] [stdout]    |
[INFO] [stdout] 15 |     stream: &'a mut BufRead,
[INFO] [stdout]    |                     ^^^^^^^ help: use `dyn`: `dyn BufRead`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling wybr v0.0.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/io/blt_reader.rs:19:29
[INFO] [stdout]    |
[INFO] [stdout] 19 |     pub fn new(stream: &mut BufRead) -> BltReader {
[INFO] [stdout]    |                             ^^^^^^^ help: use `dyn`: `dyn BufRead`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/io/blt_reader.rs:15:21
[INFO] [stdout]    |
[INFO] [stdout] 15 |     stream: &'a mut BufRead,
[INFO] [stdout]    |                     ^^^^^^^ help: use `dyn`: `dyn BufRead`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/io/blt_reader.rs:19:29
[INFO] [stdout]    |
[INFO] [stdout] 19 |     pub fn new(stream: &mut BufRead) -> BltReader {
[INFO] [stdout]    |                             ^^^^^^^ help: use `dyn`: `dyn BufRead`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 5.96s
[INFO] running `Command { std: "docker" "inspect" "fae9f739a96766cc17a59fc0eae1b7ced29b4d566f1cdc24ec85d5bb4d93054e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fae9f739a96766cc17a59fc0eae1b7ced29b4d566f1cdc24ec85d5bb4d93054e", kill_on_drop: false }`
[INFO] [stdout] fae9f739a96766cc17a59fc0eae1b7ced29b4d566f1cdc24ec85d5bb4d93054e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "+1.55.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 0a5efbfec5511d9027fc53389934cc82194209c22ef2116798656f2803cc99f9
[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" "0a5efbfec5511d9027fc53389934cc82194209c22ef2116798656f2803cc99f9", kill_on_drop: false }`
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/io/blt_reader.rs:15:21
[INFO] [stderr]    |
[INFO] [stderr] 15 |     stream: &'a mut BufRead,
[INFO] [stderr]    |                     ^^^^^^^ help: use `dyn`: `dyn BufRead`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/io/blt_reader.rs:19:29
[INFO] [stderr]    |
[INFO] [stderr] 19 |     pub fn new(stream: &mut BufRead) -> BltReader {
[INFO] [stderr]    |                             ^^^^^^^ help: use `dyn`: `dyn BufRead`
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: `wybr` (lib) generated 2 warnings
[INFO] [stderr] warning: `wybr` (lib test) generated 2 warnings (2 duplicates)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/wybr-07280d5dd03f8f98)
[INFO] [stdout] running 69 tests
[INFO] [stdout] test common::tests::election_error_msg ... ok
[INFO] [stdout] test io::blt_reader::tests::blt_cannot_parse ... ok
[INFO] [stdout] test io::blt_reader::tests::blt_bad_cand ... ok
[INFO] [stdout] test io::blt_reader::tests::blt_header ... ok
[INFO] [stdout] test methods::alternative::tests::alt_empty ... ok
[INFO] [stdout] test io::blt_reader::tests::parse_sample_blt ... ok
[INFO] [stdout] test methods::baldwin::tests::demo ... ok
[INFO] [stdout] test methods::borda::tests::borda_simple ... ok
[INFO] [stdout] test methods::baldwin::tests::with_tie ... ok
[INFO] [stdout] test methods::irv::tests::empty ... ok
[INFO] [stdout] test methods::borda::tests::demo ... ok
[INFO] [stdout] test methods::meek::tests::meek_alts_more ... ok
[INFO] [stdout] test methods::meek::tests::meek_empty ... ok
[INFO] [stdout] test methods::minimax::tests::minimax_basic ... ok
[INFO] [stdout] test methods::meek::tests::meek_alts ... ok
[INFO] [stdout] test methods::meek::tests::meek_withdrawn ... ok
[INFO] [stdout] test methods::nanson::tests::empty ... ok
[INFO] [stdout] test methods::borda::tests::borda_empty ... ok
[INFO] [stdout] test methods::nanson::tests::demo ... ok
[INFO] [stdout] test methods::minimax::tests::overflows ... ok
[INFO] [stdout] test methods::irv::tests::basic ... ok
[INFO] [stdout] test methods::nanson::tests::single_cand ... ok
[INFO] [stdout] test methods::minimax::tests::no_cands ... ok
[INFO] [stdout] test methods::borda::tests::borda_wiki ... ok
[INFO] [stdout] test methods::borda::tests::borda_multi ... ok
[INFO] [stdout] test methods::alternative::tests::alt_basic ... ok
[INFO] [stdout] test methods::alternative::tests::alt_deeper ... ok
[INFO] [stdout] test methods::ranked_pairs::forced_dag::tests::basic ... ok
[INFO] [stdout] test methods::schulze::tests::schulze_wiki ... ok
[INFO] [stdout] test methods::nanson::tests::with_tie ... ok
[INFO] [stdout] test methods::ranked_pairs::cand_pair::tests::cand_pair ... ok
[INFO] [stdout] test methods::smith_schwartz::tests::ss_cycle ... ok
[INFO] [stdout] test methods::schulze::tests::schulze_no_cands ... ok
[INFO] [stdout] test methods::ranked_pairs::tests::ranked_pairs_co2 ... ok
[INFO] [stdout] test methods::schulze::tests::schulze_no_wins ... ok
[INFO] [stdout] test methods::smith_schwartz::tests::ss_simple ... ok
[INFO] [stdout] test methods::smith_schwartz::tests::ss_leader_tie ... ok
[INFO] [stdout] test methods::ranked_pairs::tests::no_cands ... ok
[INFO] [stdout] test methods::ranked_pairs::tests::ranked_pairs_schulze_wiki ... ok
[INFO] [stdout] test methods::ranked_pairs::tests::ranked_pairs_basic ... ok
[INFO] [stdout] test methods::smith_schwartz::strongly_connected::tests::sc_vm ... ok
[INFO] [stdout] test prng::tests::shuffle ... ok
[INFO] [stdout] test tally::tests::file_read ... ok
[INFO] [stdout] test tally::tests::no_file_errors ... ok
[INFO] [stdout] test methods::smith_schwartz::tests::ss_cycle_alt ... ok
[INFO] [stdout] test methods::smith_schwartz::strongly_connected::tests::sc_ex ... ok
[INFO] [stdout] test tally::vote_matrix::tests::from_blt_and_idx ... ok
[INFO] [stdout] test methods::smith_schwartz::tests::ss_weak ... ok
[INFO] [stdout] test methods::smith_schwartz::strongly_connected::tests::sc_tricky ... ok
[INFO] [stdout] test methods::ranked_pairs::tests::ranked_pairs_no_wins ... ok
[INFO] [stdout] test methods::smith_schwartz::tests::ss_full_tie ... ok
[INFO] [stdout] test methods::schulze::tests::schulze_basic ... ok
[INFO] [stdout] test tally::vote_tree::tests::assign_votes_discrete ... ok
[INFO] [stdout] test tally::vote_tree::tests::ballot_streaming ... ok
[INFO] [stdout] test tally::vote_tree::tests::assign_zero ... ok
[INFO] [stdout] test methods::ranked_pairs::tests::ranked_pairs_determinism ... ok
[INFO] [stdout] test tally::vote_tree::tests::transfer_votes ... ok
[INFO] [stdout] test tally::vote_tree::tests::stv_from_blt ... ok
[INFO] [stdout] test tally::vote_tree::tests::transfer_zero_weight ... ok
[INFO] [stdout] test tally::vote_tree::tests::vote_tree_collect ... ok
[INFO] [stdout] test prng::tests::state_stack ... ok
[INFO] [stdout] test prng::tests::upto ... ok
[INFO] [stdout] test tally::vote_tree::tests::stv_branch_test ... ok
[INFO] [stdout] test tally::vote_tree::tests::count_ranks_skip ... ok
[INFO] [stdout] test tally::vote_tree::tests::count_ranks ... ok
[INFO] [stdout] test outcome::tests::placeholder_names ... ok
[INFO] [stdout] test prng::tests::cmp_with_c ... ok
[INFO] [stdout] test prng::tests::random_element ... ok
[INFO] [stdout] test prng::tests::only_element ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 69 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.02s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests wybr
[INFO] [stdout] 
[INFO] [stdout] running 9 tests
[INFO] [stdout] test src/methods/irv.rs - methods::irv (line 14) ... ok
[INFO] [stdout] test src/methods/minimax.rs - methods::minimax (line 10) ... ok
[INFO] [stdout] test src/methods/schulze.rs - methods::schulze (line 8) ... ok
[INFO] [stdout] test src/methods/baldwin.rs - methods::baldwin (line 14) ... ok
[INFO] [stdout] test src/methods/nanson.rs - methods::nanson (line 14) ... ok
[INFO] [stdout] test src/methods/ranked_pairs.rs - methods::ranked_pairs (line 22) ... ok
[INFO] [stdout] test src/methods/meek.rs - methods::meek (line 22) ... ok
[INFO] [stdout] test src/methods/alternative.rs - methods::alternative (line 10) ... ok
[INFO] [stdout] test src/methods/borda.rs - methods::borda (line 20) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 9 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 6.81s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "0a5efbfec5511d9027fc53389934cc82194209c22ef2116798656f2803cc99f9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0a5efbfec5511d9027fc53389934cc82194209c22ef2116798656f2803cc99f9", kill_on_drop: false }`
[INFO] [stdout] 0a5efbfec5511d9027fc53389934cc82194209c22ef2116798656f2803cc99f9