[INFO] crate zia 0.3.2 is already in cache
[INFO] testing zia-0.3.2 against 1.38.0 for beta-1.39-1
[INFO] extracting crate zia 0.3.2 into work/builds/worker-0/source
[INFO] validating manifest of crates.io crate zia 0.3.2 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 crates.io crate zia 0.3.2
[INFO] finished tweaking crates.io crate zia 0.3.2
[INFO] tweaked toml for crates.io crate zia 0.3.2 written to work/builds/worker-0/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-0/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-0/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] 1058be22973b9b93006dcc930e96dc4b7437752df8ea912346ae06bd3a1ad11e
[INFO] running `"docker" "start" "-a" "1058be22973b9b93006dcc930e96dc4b7437752df8ea912346ae06bd3a1ad11e"`
[INFO] [stderr]    Compiling slog v2.5.2
[INFO] [stderr]    Compiling num-integer v0.1.41
[INFO] [stderr]    Compiling chrono v0.4.9
[INFO] [stderr]    Compiling slog-term v2.4.1
[INFO] [stderr]    Compiling zia v0.3.2 (/opt/rustwide/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/adding.rs:158:25
[INFO] [stderr]     |
[INFO] [stderr] 158 |                     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:159:25
[INFO] [stderr]     |
[INFO] [stderr] 159 |                     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 6.66s
[INFO] running `"docker" "inspect" "1058be22973b9b93006dcc930e96dc4b7437752df8ea912346ae06bd3a1ad11e"`
[INFO] running `"docker" "rm" "-f" "1058be22973b9b93006dcc930e96dc4b7437752df8ea912346ae06bd3a1ad11e"`
[INFO] [stdout] 1058be22973b9b93006dcc930e96dc4b7437752df8ea912346ae06bd3a1ad11e
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-0/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] dc179766215dc86c1cb52ec05475ad268e5c308ad9987b5edc97cd263140b8c2
[INFO] running `"docker" "start" "-a" "dc179766215dc86c1cb52ec05475ad268e5c308ad9987b5edc97cd263140b8c2"`
[INFO] [stderr]    Compiling wait-timeout v0.2.0
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling rusty-fork v0.2.2
[INFO] [stderr]    Compiling proptest v0.9.4
[INFO] [stderr]    Compiling test_zia v0.2.0
[INFO] [stderr]    Compiling zia v0.3.2 (/opt/rustwide/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/adding.rs:158:25
[INFO] [stderr]     |
[INFO] [stderr] 158 |                     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:159:25
[INFO] [stderr]     |
[INFO] [stderr] 159 |                     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 21.22s
[INFO] running `"docker" "inspect" "dc179766215dc86c1cb52ec05475ad268e5c308ad9987b5edc97cd263140b8c2"`
[INFO] running `"docker" "rm" "-f" "dc179766215dc86c1cb52ec05475ad268e5c308ad9987b5edc97cd263140b8c2"`
[INFO] [stdout] dc179766215dc86c1cb52ec05475ad268e5c308ad9987b5edc97cd263140b8c2
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-0/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] 7be205727d0e187e1c12c5e3c141e56189d29d6c3200fff929a6596dd7c07c30
[INFO] running `"docker" "start" "-a" "7be205727d0e187e1c12c5e3c141e56189d29d6c3200fff929a6596dd7c07c30"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.36s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/zia-e40217b9d99f87e4
[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] [stderr]      Running /opt/rustwide/target/debug/deps/definitions-9ee746aa883c0fcf
[INFO] [stdout] 
[INFO] [stdout] running 11 tests
[INFO] [stdout] test fresh_symbol ... ok
[INFO] [stdout] test fresh_refactor ... ok
[INFO] [stdout] test definition_loop ... ok
[INFO] [stdout] test nested_definition_loop ... ok
[INFO] [stdout] test setting_definition_of_concrete ... ok
[INFO] [stdout] test pair_on_the_left ... ok
[INFO] [stdout] test chained_definitions_loop ... ok
[INFO] [stdout] test bad_refactor ... ok
[INFO] [stdout] test redundantly_remove_definition ... ok
[INFO] [stdout] test redundancy ... ok
[INFO] [stdout] test defining_used_symbol_as_used_pair ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 11 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/definitions_and_reductions-dc4b48fa372fd4db
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test sneeky_infinite_reduction_chain ... ok
[INFO] [stdout] test reducing_part_of_a_labelled_concept ... 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-b94c2e92f0b290f0
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test fresh_symbol_is_not_a_program ... ok
[INFO] [stdout] test fresh_pair_does_not_reduce ... ok
[INFO] [stdout] test fresh_nested_pair_does_not_reduce ... ok
[INFO] [stdout] test used_symbol_in_a_nested_pair_does_not_reduce ... ok
[INFO] [stdout] test used_symbol_in_a_pair_does_not_reduce ... ok
[INFO] [stdout] test used_symbol_does_not_reduce ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/reductions-128202d25fd93310
[INFO] [stdout] 
[INFO] [stdout] running 10 tests
[INFO] [stdout] test trivial_parentheses ... ok
[INFO] [stdout] test infinite_expansion ... ok
[INFO] [stdout] test pair_to_symbol ... ok
[INFO] [stdout] test nested_pair_to_symbol ... ok
[INFO] [stdout] test cycle ... ok
[INFO] [stdout] test redundancy ... ok
[INFO] [stdout] test change_reduction_rule ... ok
[INFO] [stdout] test leapfrog_reduction_rule ... ok
[INFO] [stdout] test broken_end_chain ... ok
[INFO] [stdout] test broken_middle_chain ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 10 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/syntax-8a6b5acacbe9306b
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test empty_parentheses ... ok
[INFO] [stdout] test ambiguous_expression ... 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 1 test
[INFO] [stdout] test src/lib.rs -  (line 46) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "7be205727d0e187e1c12c5e3c141e56189d29d6c3200fff929a6596dd7c07c30"`
[INFO] running `"docker" "rm" "-f" "7be205727d0e187e1c12c5e3c141e56189d29d6c3200fff929a6596dd7c07c30"`
[INFO] [stdout] 7be205727d0e187e1c12c5e3c141e56189d29d6c3200fff929a6596dd7c07c30