[INFO] updating cached repository https://github.com/Charles-Johnson/zia
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/big/crater/work/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 27df02008cf064f8857b5c6e646519f306307ea9
[INFO] testing Charles-Johnson/zia against 1.38.0 for beta-1.39-1
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2FCharles-Johnson%2Fzia" "work/builds/worker-5/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Charles-Johnson/zia on toolchain 1.38.0
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/Charles-Johnson/zia
[INFO] finished tweaking git repo https://github.com/Charles-Johnson/zia
[INFO] tweaked toml for git repo https://github.com/Charles-Johnson/zia written to work/builds/worker-5/source/Cargo.toml
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-5/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.38.0" "build" "--frozen"`
[INFO] [stdout] e4ae4f4bba2ad9b3087ea773e6317af5975f83d49531535bc76a8a1a9d995465
[INFO] running `"docker" "start" "-a" "e4ae4f4bba2ad9b3087ea773e6317af5975f83d49531535bc76a8a1a9d995465"`
[INFO] [stderr]    Compiling zia v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/adding.rs:120:25
[INFO] [stderr]     |
[INFO] [stderr] 120 |                     let mut leftc = try!(self.concept_from_ast(left));
[INFO] [stderr]     |                         ----^^^^^
[INFO] [stderr]     |                         |
[INFO] [stderr]     |                         help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/adding.rs:121:25
[INFO] [stderr]     |
[INFO] [stderr] 121 |                     let mut rightc = try!(self.concept_from_ast(right));
[INFO] [stderr]     |                         ----^^^^^^
[INFO] [stderr]     |                         |
[INFO] [stderr]     |                         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.61s
[INFO] running `"docker" "inspect" "e4ae4f4bba2ad9b3087ea773e6317af5975f83d49531535bc76a8a1a9d995465"`
[INFO] running `"docker" "rm" "-f" "e4ae4f4bba2ad9b3087ea773e6317af5975f83d49531535bc76a8a1a9d995465"`
[INFO] [stdout] e4ae4f4bba2ad9b3087ea773e6317af5975f83d49531535bc76a8a1a9d995465
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-5/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.38.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 9015f473f02c9776f084819800478ef0cbd89e58ff134aad046ffe6e030bc948
[INFO] running `"docker" "start" "-a" "9015f473f02c9776f084819800478ef0cbd89e58ff134aad046ffe6e030bc948"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling zia v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/adding.rs:120:25
[INFO] [stderr]     |
[INFO] [stderr] 120 |                     let mut leftc = try!(self.concept_from_ast(left));
[INFO] [stderr]     |                         ----^^^^^
[INFO] [stderr]     |                         |
[INFO] [stderr]     |                         help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/adding.rs:121:25
[INFO] [stderr]     |
[INFO] [stderr] 121 |                     let mut rightc = try!(self.concept_from_ast(right));
[INFO] [stderr]     |                         ----^^^^^^
[INFO] [stderr]     |                         |
[INFO] [stderr]     |                         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.18s
[INFO] running `"docker" "inspect" "9015f473f02c9776f084819800478ef0cbd89e58ff134aad046ffe6e030bc948"`
[INFO] running `"docker" "rm" "-f" "9015f473f02c9776f084819800478ef0cbd89e58ff134aad046ffe6e030bc948"`
[INFO] [stdout] 9015f473f02c9776f084819800478ef0cbd89e58ff134aad046ffe6e030bc948
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-5/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.38.0" "test" "--frozen"`
[INFO] [stdout] 1cddcaf8b31c15f786bee58565d20b89525d28526b04a102e35c5928ecdf1ded
[INFO] running `"docker" "start" "-a" "1cddcaf8b31c15f786bee58565d20b89525d28526b04a102e35c5928ecdf1ded"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.00s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/zia-e29cecbc6db0719d
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test translating::tokens::lambda ... ok
[INFO] [stdout] test translating::tokens::pair ... ok
[INFO] [stdout] test translating::tokens::triplet ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/definitions-31a07bb1024c469a
[INFO] [stdout] 
[INFO] [stdout] running 18 tests
[INFO] [stdout] test bad_refactor ... ok
[INFO] [stdout] test chained_definitions_loop ... ok
[INFO] [stdout] test defining_fresh_symbol_as_used_pair ... ok
[INFO] [stdout] test definition_loop ... ok
[INFO] [stdout] test defining_used_symbol_as_fresh_pair ... ok
[INFO] [stdout] test fresh_symbol ... ok
[INFO] [stdout] test defining_used_symbol_as_used_pair ... ok
[INFO] [stdout] test fresh_pair ... ok
[INFO] [stdout] test fresh_nested_pairs ... ok
[INFO] [stdout] test fresh_refactor ... ok
[INFO] [stdout] test nested_definition_loop ... ok
[INFO] [stdout] test pair_on_the_left ... ok
[INFO] [stdout] test redundantly_remove_definition ... ok
[INFO] [stdout] test setting_definition_of_concrete ... ok
[INFO] [stdout] test redundancy ... ok
[INFO] [stdout] test old_pair ... ok
[INFO] [stdout] test refactor ... ok
[INFO] [stdout] test remove_definition ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 18 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/definitions_and_reductions-cb255be2328d532a
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test sneeky_infinite_reduction_chain ... ok
[INFO] [stdout] test reducing_nested_definition ... ok
[INFO] [stdout] test indirect_reduction ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/program_recognition-589831b51bc1fe5b
[INFO] [stdout] 
[INFO] [stdout] running 9 tests
[INFO] [stdout] test fresh_nested_pair_is_not_a_program ... ok
[INFO] [stdout] test fresh_pair_is_not_a_program ... ok
[INFO] [stdout] test fresh_symbol_is_not_a_program ... ok
[INFO] [stdout] test symbol_whose_definition_is_a_program_is_a_program ... ok
[INFO] [stdout] test symbol_whose_normal_form_is_a_program ... ok
[INFO] [stdout] test symbol_whose_normal_form_is_a_builtin_concept ... ok
[INFO] [stdout] test used_symbol_in_a_pair_is_not_a_program ... ok
[INFO] [stdout] test used_symbol_in_a_nested_pair_is_not_a_program ... ok
[INFO] [stdout] test used_symbol_is_not_a_program ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 9 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/reductions-d85fb985ced656ab
[INFO] [stdout] 
[INFO] [stdout] running 14 tests
[INFO] [stdout] test chain ... ok
[INFO] [stdout] test broken_end_chain ... ok
[INFO] [stdout] test infinite_expansion ... ok
[INFO] [stdout] test change_reduction_rule ... ok
[INFO] [stdout] test broken_middle_chain ... ok
[INFO] [stdout] test cycle ... ok
[INFO] [stdout] test reducing_concrete ... ok
[INFO] [stdout] test leapfrog_reduction_rule ... ok
[INFO] [stdout] test pair_to_symbol ... ok
[INFO] [stdout] test redundancy ... ok
[INFO] [stdout] test remove_reduction ... ok
[INFO] [stdout] test trivial_parentheses ... ok
[INFO] [stdout] test symbol_to_symbol ... ok
[INFO] [stdout] test nested_pairs_to_symbol ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 14 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/syntax-561dfd68e2c36459
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test ambiguous_expression ... ok
[INFO] [stdout] test empty_parentheses ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests zia
[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 `"docker" "inspect" "1cddcaf8b31c15f786bee58565d20b89525d28526b04a102e35c5928ecdf1ded"`
[INFO] running `"docker" "rm" "-f" "1cddcaf8b31c15f786bee58565d20b89525d28526b04a102e35c5928ecdf1ded"`
[INFO] [stdout] 1cddcaf8b31c15f786bee58565d20b89525d28526b04a102e35c5928ecdf1ded