[INFO] fetching crate backtrack 0.3.0... [INFO] testing backtrack-0.3.0 against master#c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38 for pr-146098-7 [INFO] extracting crate backtrack 0.3.0 into /workspace/builds/worker-2-tc1/source [INFO] started tweaking crates.io crate backtrack 0.3.0 [INFO] finished tweaking crates.io crate backtrack 0.3.0 [INFO] tweaked toml for crates.io crate backtrack 0.3.0 written to /workspace/builds/worker-2-tc1/source/Cargo.toml [INFO] validating manifest of crates.io crate backtrack 0.3.0 on toolchain c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate crates.io crate backtrack 0.3.0 already has a lockfile, it will not be regenerated [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded serde v1.0.126 [INFO] [stderr] Downloaded itoa v0.4.7 [INFO] [stderr] Downloaded proc-macro2 v1.0.27 [INFO] [stderr] Downloaded quote v1.0.9 [INFO] [stderr] Downloaded plotters-svg v0.3.1 [INFO] [stderr] Downloaded wasm-bindgen-shared v0.2.74 [INFO] [stderr] Downloaded memoffset v0.6.4 [INFO] [stderr] Downloaded semver v1.0.3 [INFO] [stderr] Downloaded plotters-backend v0.3.2 [INFO] [stderr] Downloaded crossbeam-utils v0.8.5 [INFO] [stderr] Downloaded memchr v2.4.0 [INFO] [stderr] Downloaded itertools v0.9.0 [INFO] [stderr] Downloaded crossbeam-channel v0.5.1 [INFO] [stderr] Downloaded itertools v0.10.1 [INFO] [stderr] Downloaded js-sys v0.3.51 [INFO] [stderr] Downloaded rayon-core v1.9.1 [INFO] [stderr] Downloaded bumpalo v3.7.0 [INFO] [stderr] Downloaded syn v1.0.73 [INFO] [stderr] Downloaded rayon v1.5.1 [INFO] [stderr] Downloaded wasm-bindgen v0.2.74 [INFO] [stderr] Downloaded wasm-bindgen-backend v0.2.74 [INFO] [stderr] Downloaded crossbeam-epoch v0.9.5 [INFO] [stderr] Downloaded regex v1.5.4 [INFO] [stderr] Downloaded bstr v0.2.16 [INFO] [stderr] Downloaded criterion v0.3.4 [INFO] [stderr] Downloaded half v1.7.1 [INFO] [stderr] Downloaded crossbeam-deque v0.8.0 [INFO] [stderr] Downloaded serde_json v1.0.64 [INFO] [stderr] Downloaded cast v0.2.7 [INFO] [stderr] Downloaded criterion-plot v0.4.3 [INFO] [stderr] Downloaded csv-core v0.1.10 [INFO] [stderr] Downloaded oorandom v11.1.3 [INFO] [stderr] Downloaded wasm-bindgen-macro-support v0.2.74 [INFO] [stderr] Downloaded wasm-bindgen-macro v0.2.74 [INFO] [stderr] Downloaded either v1.6.1 [INFO] [stderr] Downloaded libc v0.2.98 [INFO] [stderr] Downloaded serde_cbor v0.11.1 [INFO] [stderr] Downloaded serde_derive v1.0.126 [INFO] [stderr] Downloaded web-sys v0.3.51 [INFO] [stderr] Downloaded csv v1.1.6 [INFO] [stderr] Downloaded plotters v0.3.1 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 65243dce1ef67eee9fb631f429840f4de9714d993dcbaeb7e1854ee94ee44613 [INFO] running `Command { std: "docker" "start" "-a" "65243dce1ef67eee9fb631f429840f4de9714d993dcbaeb7e1854ee94ee44613", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "65243dce1ef67eee9fb631f429840f4de9714d993dcbaeb7e1854ee94ee44613", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "65243dce1ef67eee9fb631f429840f4de9714d993dcbaeb7e1854ee94ee44613", kill_on_drop: false }` [INFO] [stdout] 65243dce1ef67eee9fb631f429840f4de9714d993dcbaeb7e1854ee94ee44613 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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" "RUSTDOCFLAGS=--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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] a7fc536789d6bd2dba31ad528c00f68bd47f90134c5eb108bef54b079f6a6b13 [INFO] running `Command { std: "docker" "start" "-a" "a7fc536789d6bd2dba31ad528c00f68bd47f90134c5eb108bef54b079f6a6b13", kill_on_drop: false }` [INFO] [stderr] Compiling backtrack v0.3.0 (/opt/rustwide/workdir) [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.42s [INFO] running `Command { std: "docker" "inspect" "a7fc536789d6bd2dba31ad528c00f68bd47f90134c5eb108bef54b079f6a6b13", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a7fc536789d6bd2dba31ad528c00f68bd47f90134c5eb108bef54b079f6a6b13", kill_on_drop: false }` [INFO] [stdout] a7fc536789d6bd2dba31ad528c00f68bd47f90134c5eb108bef54b079f6a6b13 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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" "RUSTDOCFLAGS=--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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 00cbb6461aa09f3468d1a165748a0db8bdacb3a03624283b95ccdd9f1fb2ee2c [INFO] running `Command { std: "docker" "start" "-a" "00cbb6461aa09f3468d1a165748a0db8bdacb3a03624283b95ccdd9f1fb2ee2c", kill_on_drop: false }` [INFO] [stderr] Compiling semver v1.0.3 [INFO] [stderr] Compiling crossbeam-utils v0.8.5 [INFO] [stderr] Compiling serde v1.0.126 [INFO] [stderr] Compiling memoffset v0.6.4 [INFO] [stderr] Compiling libc v0.2.98 [INFO] [stderr] Compiling proc-macro2 v1.0.27 [INFO] [stderr] Compiling memchr v2.4.0 [INFO] [stderr] Compiling crossbeam-epoch v0.9.5 [INFO] [stderr] Compiling unicode-xid v0.2.2 [INFO] [stderr] Compiling either v1.6.1 [INFO] [stderr] Compiling rayon-core v1.9.1 [INFO] [stderr] Compiling num-traits v0.2.14 [INFO] [stderr] Compiling syn v1.0.73 [INFO] [stderr] Compiling serde_json v1.0.64 [INFO] [stderr] Compiling itoa v0.4.7 [INFO] [stderr] Compiling rayon v1.5.1 [INFO] [stderr] Compiling regex-automata v0.1.10 [INFO] [stderr] Compiling serde_derive v1.0.126 [INFO] [stderr] Compiling plotters-backend v0.3.2 [INFO] [stderr] Compiling itertools v0.9.0 [INFO] [stderr] Compiling regex-syntax v0.6.25 [INFO] [stderr] Compiling half v1.7.1 [INFO] [stderr] Compiling walkdir v2.3.2 [INFO] [stderr] Compiling clap v2.33.3 [INFO] [stderr] Compiling plotters-svg v0.3.1 [INFO] [stderr] Compiling itertools v0.10.1 [INFO] [stderr] Compiling oorandom v11.1.3 [INFO] [stderr] Compiling num_cpus v1.13.0 [INFO] [stderr] Compiling csv-core v0.1.10 [INFO] [stderr] Compiling atty v0.2.14 [INFO] [stderr] Compiling rustc_version v0.4.0 [INFO] [stderr] Compiling quote v1.0.9 [INFO] [stderr] Compiling crossbeam-channel v0.5.1 [INFO] [stderr] Compiling cast v0.2.7 [INFO] [stderr] Compiling crossbeam-deque v0.8.0 [INFO] [stderr] Compiling plotters v0.3.1 [INFO] [stderr] Compiling regex v1.5.4 [INFO] [stderr] Compiling criterion-plot v0.4.3 [INFO] [stderr] Compiling bstr v0.2.16 [INFO] [stderr] Compiling serde_cbor v0.11.1 [INFO] [stderr] Compiling csv v1.1.6 [INFO] [stderr] Compiling tinytemplate v1.2.1 [INFO] [stderr] Compiling criterion v0.3.4 [INFO] [stderr] Compiling backtrack v0.3.0 (/opt/rustwide/workdir) [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 25.54s [INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: criterion v0.3.4 [INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 1` [INFO] running `Command { std: "docker" "inspect" "00cbb6461aa09f3468d1a165748a0db8bdacb3a03624283b95ccdd9f1fb2ee2c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "00cbb6461aa09f3468d1a165748a0db8bdacb3a03624283b95ccdd9f1fb2ee2c", kill_on_drop: false }` [INFO] [stdout] 00cbb6461aa09f3468d1a165748a0db8bdacb3a03624283b95ccdd9f1fb2ee2c [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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" "RUSTDOCFLAGS=--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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] 8238c86e1e753811e627fc8fe87eafe57908823d24561734bf8faaf1a647c73b [INFO] running `Command { std: "docker" "start" "-a" "8238c86e1e753811e627fc8fe87eafe57908823d24561734bf8faaf1a647c73b", kill_on_drop: false }` [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.09s [INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: criterion v0.3.4 [INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 1` [INFO] [stderr] Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/backtrack-f45955a768c7a1dd) [INFO] [stderr] Running tests/it/main.rs (/opt/rustwide/target/debug/deps/it-e4d7ba50b533715a) [INFO] [stdout] [INFO] [stdout] running 6 tests [INFO] [stdout] test problems::count_up::tests::count_up_sat ... ok [INFO] [stdout] test problems::count_up::tests::count_up_unsat ... ok [INFO] [stdout] test problems::total_sum::tests::sums_unsat_too_many ... ok [INFO] [stdout] test problems::total_sum::tests::sums_sat3 ... ok [INFO] [stdout] test problems::total_sum::tests::sums_sat4 ... ok [INFO] [stdout] test problems::total_sum::tests::sums_unsat_too_few ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] running 18 tests [INFO] [stdout] test bit_queens::tiny_bit_at_least ... ok [INFO] [stdout] test count_up::count_up_search_nosat ... ok [INFO] [stdout] test count_up::total_sum_unsat_unique ... ok [INFO] [stdout] test n_queens::four_queens_search_nodes ... ok [INFO] [stdout] test n_queens::four_queens_search_sat ... ok [INFO] [stdout] test n_queens::four_queens_unsat_unique ... ok [INFO] [stdout] test count_up::count_up_search_sat ... ok [INFO] [stdout] test total_sum::total_sum_search_sat_cached ... ok [INFO] [stdout] test total_sum::total_sum_unsat_unique ... ok [INFO] [stdout] test total_sum::total_sum_search_sat ... ok [INFO] [stdout] test total_sum::total_sum_unsat_unique_cached ... ok [INFO] [stdout] test zero_sized::zero_sized_len_problem_cached ... ok [INFO] [stdout] test zero_sized::zero_sized_problem ... ok [INFO] [stdout] test zero_sized::zero_sized_problem_cached ... ok [INFO] [stdout] test zero_sized::zero_sized_len_problem ... ok [INFO] [stdout] test zero_sized::zero_len_problem_cached ... ok [INFO] [stdout] test zero_sized::zero_len_problem ... ok [INFO] [stdout] test bit_queens::equivalent_n_queens ... ok [INFO] [stderr] Doc-tests backtrack [INFO] [stdout] [INFO] [stdout] test result: ok. 18 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.11s [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] running 2 tests [INFO] [stdout] test src/lib.rs - (line 61) ... ok [INFO] [stdout] test src/lib.rs - (line 23) ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.38s [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "8238c86e1e753811e627fc8fe87eafe57908823d24561734bf8faaf1a647c73b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "8238c86e1e753811e627fc8fe87eafe57908823d24561734bf8faaf1a647c73b", kill_on_drop: false }` [INFO] [stdout] 8238c86e1e753811e627fc8fe87eafe57908823d24561734bf8faaf1a647c73b