[INFO] updating cached repository https://github.com/Michael-F-Bryan/constraints
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune", kill_on_drop: false }`
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a240eedc79f8c78c12bdf00bc5f9cb5b497de91b
[INFO] testing Michael-F-Bryan/constraints against master#8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e for pr-74409
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMichael-F-Bryan%2Fconstraints" "/workspace/builds/worker-10/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-10/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Michael-F-Bryan/constraints on toolchain 8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Michael-F-Bryan/constraints
[INFO] finished tweaking git repo https://github.com/Michael-F-Bryan/constraints
[INFO] tweaked toml for git repo https://github.com/Michael-F-Bryan/constraints written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f341b1db7d55afbddf6f4b26c0b8a4782e811d80ea16771a78e5d1c2a369901f
[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" "f341b1db7d55afbddf6f4b26c0b8a4782e811d80ea16771a78e5d1c2a369901f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f341b1db7d55afbddf6f4b26c0b8a4782e811d80ea16771a78e5d1c2a369901f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f341b1db7d55afbddf6f4b26c0b8a4782e811d80ea16771a78e5d1c2a369901f", kill_on_drop: false }`
[INFO] [stdout] f341b1db7d55afbddf6f4b26c0b8a4782e811d80ea16771a78e5d1c2a369901f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b84d66fe5176ea21eeecd767a1c8722a81d738e72db814110582a4f92f60e449
[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" "b84d66fe5176ea21eeecd767a1c8722a81d738e72db814110582a4f92f60e449", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.0
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling proc-macro-hack v0.5.16
[INFO] [stderr]    Compiling typenum v1.12.0
[INFO] [stderr]    Compiling ppv-lite86 v0.2.8
[INFO] [stderr]    Compiling smol_str v0.1.16
[INFO] [stderr]    Compiling arrayvec v0.5.1
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling num-integer v0.1.43
[INFO] [stderr]    Compiling num-complex v0.2.4
[INFO] [stderr]    Compiling num-rational v0.2.4
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling paste-impl v0.1.18
[INFO] [stderr]    Compiling generic-array v0.13.2
[INFO] [stderr]    Compiling paste v0.1.18
[INFO] [stderr]    Compiling approx v0.3.2
[INFO] [stderr]    Compiling euclid v0.20.14
[INFO] [stderr]    Compiling rand_distr v0.2.2
[INFO] [stderr]    Compiling simba v0.1.5
[INFO] [stderr]    Compiling nalgebra v0.21.1
[INFO] [stderr]    Compiling constraints v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 49.02s
[INFO] running `Command { std: "docker" "inspect" "b84d66fe5176ea21eeecd767a1c8722a81d738e72db814110582a4f92f60e449", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b84d66fe5176ea21eeecd767a1c8722a81d738e72db814110582a4f92f60e449", kill_on_drop: false }`
[INFO] [stdout] b84d66fe5176ea21eeecd767a1c8722a81d738e72db814110582a4f92f60e449
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e1523c879194cdb15146c054ddba084b447c9626ee46c534e38e3c7295a68b03
[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" "e1523c879194cdb15146c054ddba084b447c9626ee46c534e38e3c7295a68b03", kill_on_drop: false }`
[INFO] [stderr]    Compiling ansi_term v0.11.0
[INFO] [stderr]    Compiling difference v2.0.0
[INFO] [stderr]    Compiling pretty_assertions v0.6.1
[INFO] [stderr]    Compiling constraints v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 6.46s
[INFO] running `Command { std: "docker" "inspect" "e1523c879194cdb15146c054ddba084b447c9626ee46c534e38e3c7295a68b03", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e1523c879194cdb15146c054ddba084b447c9626ee46c534e38e3c7295a68b03", kill_on_drop: false }`
[INFO] [stdout] e1523c879194cdb15146c054ddba084b447c9626ee46c534e38e3c7295a68b03
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 4abfffbf822eb6ddc8203dd688c54090b43d0ac3edf429c89c071b05fead2cde
[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" "4abfffbf822eb6ddc8203dd688c54090b43d0ac3edf429c89c071b05fead2cde", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.18s
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/constraints-17dee781c922c89a
[INFO] [stdout] running 47 tests
[INFO] [stdout] test expr::tests::pretty_printing_works_similarly_to_a_human ... ok
[INFO] [stdout] test ops::tests::basic_substitutions ... ok
[INFO] [stdout] test ops::tests::evaluate_some_expressions ... ok
[INFO] [stdout] test expr::tests::iterate_over_parameters_in_an_expression ... ok
[INFO] [stdout] test ops::tests::constant_fold_simple_arithmetic ... ok
[INFO] [stdout] test parse::parser_tests::bimdas ... ok
[INFO] [stdout] test ops::tests::constant_folding_leaves_unknowns_unevaluated ... ok
[INFO] [stdout] test ops::tests::differentiate_wrt_x ... ok
[INFO] [stdout] test parse::parser_tests::one_plus_one_times_three ... ok
[INFO] [stdout] test parse::parser_tests::one_plus_one ... ok
[INFO] [stdout] test parse::tokenizer_tests::identifiers_can_start_with_underscores ... ok
[INFO] [stdout] test parse::tokenizer_tests::longer_identifier ... ok
[INFO] [stdout] test parse::tokenizer_tests::minus ... ok
[INFO] [stdout] test parse::tokenizer_tests::multi_digit_integer ... ok
[INFO] [stdout] test parse::tokenizer_tests::number_with_trailing_dot ... ok
[INFO] [stdout] test parse::tokenizer_tests::open_paren ... ok
[INFO] [stdout] test parse::tokenizer_tests::plus ... ok
[INFO] [stdout] test parse::tokenizer_tests::simple_decimal ... ok
[INFO] [stdout] test parse::tokenizer_tests::simple_identifier ... ok
[INFO] [stdout] test parse::tokenizer_tests::single_digit_integer ... ok
[INFO] [stdout] test parse::tokenizer_tests::times ... ok
[INFO] [stdout] test solve::tests::calculate_jacobian_of_known_system_of_equations ... ok
[INFO] [stdout] test solve::tests::difference_of_numbers_reversed ... ignored
[INFO] [stdout] test solve::tests::difference_of_numbers ... ok
[INFO] [stdout] test solve::tests::simple_trig_2 ... ignored
[INFO] [stdout] test solve::tests::simple_trig ... ok
[INFO] [stdout] test solve::tests::sin_x_take_cos_x ... ok
[INFO] [stdout] test solve::tests::single_equality ... ok
[INFO] [stdout] test solve::tests::trig_equation_with_no_solution ... ignored
[INFO] [stdout] test solve::tests::solve_simple_equations ... ok
[INFO] [stdout] test solve::tests::unrelated_equations ... ok
[INFO] [stdout] test parse::tokenizer_tests::identifiers_can_contain_numbers ... ok
[INFO] [stdout] test parse::parser_tests::negative_one_plus_x ... ok
[INFO] [stdout] test parse::parser_tests::negative_one ... ok
[INFO] [stdout] test parse::parser_tests::negative_one_plus_one ... ok
[INFO] [stdout] test parse::parser_tests::one_plus_one_plus_negative_one ... ok
[INFO] [stdout] test parse::parser_tests::function_call_with_expression ... ok
[INFO] [stdout] test solve::tests::work_through_youtube_example ... ok
[INFO] [stdout] test parse::parser_tests::number_in_parens ... ok
[INFO] [stdout] test parse::tokenizer_tests::close_paren ... ok
[INFO] [stdout] test parse::tokenizer_tests::identifiers_can_have_underscores ... ok
[INFO] [stdout] test parse::parser_tests::one_plus_one_all_times_three ... ok
[INFO] [stdout] test parse::parser_tests::simple_integer ... ok
[INFO] [stdout] test parse::tokenizer_tests::divide ... ok
[INFO] [stdout] test parse::parser_tests::function_call ... ok
[INFO] [stdout] test solve::tests::x_is_5 ... ok
[INFO] [stdout] test parse::parser_tests::function_calls_function_calls_function_with_variable ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 44 passed; 0 failed; 3 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests constraints
[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
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "4abfffbf822eb6ddc8203dd688c54090b43d0ac3edf429c89c071b05fead2cde", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4abfffbf822eb6ddc8203dd688c54090b43d0ac3edf429c89c071b05fead2cde", kill_on_drop: false }`
[INFO] [stdout] 4abfffbf822eb6ddc8203dd688c54090b43d0ac3edf429c89c071b05fead2cde