[INFO] cloning repository Charles-Johnson/zia
[INFO] running `"git" "clone" "--bare" "git://github.com/Charles-Johnson/zia.git" "work/cache/sources/gh/Charles-Johnson/zia"`
[INFO] [stderr] Cloning into bare repository 'work/cache/sources/gh/Charles-Johnson/zia'...
[INFO] running `"git" "clone" "work/cache/sources/gh/Charles-Johnson/zia" "work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/gh/Charles-Johnson/zia"`
[INFO] [stderr] Cloning into 'work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/gh/Charles-Johnson/zia'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/Charles-Johnson/zia" "work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/gh/Charles-Johnson/zia"`
[INFO] [stderr] Cloning into 'work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/gh/Charles-Johnson/zia'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 27df02008cf064f8857b5c6e646519f306307ea9
[INFO] sha for GitHub repo Charles-Johnson/zia: 27df02008cf064f8857b5c6e646519f306307ea9
[INFO] validating manifest of Charles-Johnson/zia on toolchain master#c8865d8e195813ade6b84434ac9f8850e7112d1a
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c8865d8e195813ade6b84434ac9f8850e7112d1a-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of Charles-Johnson/zia on toolchain try#e212b7d492c96d3837691ba29d32d5f468933fb8
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e212b7d492c96d3837691ba29d32d5f468933fb8-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing Charles-Johnson/zia
[INFO] finished frobbing Charles-Johnson/zia
[INFO] frobbed toml for Charles-Johnson/zia written to work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/gh/Charles-Johnson/zia/Cargo.toml
[INFO] started frobbing Charles-Johnson/zia
[INFO] finished frobbing Charles-Johnson/zia
[INFO] frobbed toml for Charles-Johnson/zia written to work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/gh/Charles-Johnson/zia/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c8865d8e195813ade6b84434ac9f8850e7112d1a-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e212b7d492c96d3837691ba29d32d5f468933fb8-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c8865d8e195813ade6b84434ac9f8850e7112d1a-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache lock
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e212b7d492c96d3837691ba29d32d5f468933fb8-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing Charles-Johnson/zia against try#e212b7d492c96d3837691ba29d32d5f468933fb8 for pr-61629
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-61629/worker-2/try#e212b7d492c96d3837691ba29d32d5f468933fb8:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/gh/Charles-Johnson/zia:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+e212b7d492c96d3837691ba29d32d5f468933fb8-alt" "build" "--frozen"`
[INFO] [stdout] a720350f7931dc6acaa624fce5a666e9c8e26c913bf10e4916bde1263d4153fa
[INFO] running `"docker" "start" "-a" "a720350f7931dc6acaa624fce5a666e9c8e26c913bf10e4916bde1263d4153fa"`
[INFO] [stderr]    Compiling zia v0.1.0 (/opt/crater/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 1.51s
[INFO] running `"docker" "inspect" "a720350f7931dc6acaa624fce5a666e9c8e26c913bf10e4916bde1263d4153fa"`
[INFO] running `"docker" "rm" "-f" "a720350f7931dc6acaa624fce5a666e9c8e26c913bf10e4916bde1263d4153fa"`
[INFO] [stdout] a720350f7931dc6acaa624fce5a666e9c8e26c913bf10e4916bde1263d4153fa
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-61629/worker-2/try#e212b7d492c96d3837691ba29d32d5f468933fb8:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/gh/Charles-Johnson/zia:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+e212b7d492c96d3837691ba29d32d5f468933fb8-alt" "test" "--frozen" "--no-run"`
[INFO] [stdout] 34628e6885308ca0466ab25049750e0f3de6a9ef41bcbca5821eb24005b02d28
[INFO] running `"docker" "start" "-a" "34628e6885308ca0466ab25049750e0f3de6a9ef41bcbca5821eb24005b02d28"`
[INFO] [stderr]    Compiling zia v0.1.0 (/opt/crater/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 6.66s
[INFO] running `"docker" "inspect" "34628e6885308ca0466ab25049750e0f3de6a9ef41bcbca5821eb24005b02d28"`
[INFO] running `"docker" "rm" "-f" "34628e6885308ca0466ab25049750e0f3de6a9ef41bcbca5821eb24005b02d28"`
[INFO] [stdout] 34628e6885308ca0466ab25049750e0f3de6a9ef41bcbca5821eb24005b02d28
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-61629/worker-2/try#e212b7d492c96d3837691ba29d32d5f468933fb8:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/gh/Charles-Johnson/zia:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+e212b7d492c96d3837691ba29d32d5f468933fb8-alt" "test" "--frozen"`
[INFO] [stdout] 397981a51fa066c9c3787efeeb13c6c997f9f82fcb429bf2e759c9a1a192d5ad
[INFO] running `"docker" "start" "-a" "397981a51fa066c9c3787efeeb13c6c997f9f82fcb429bf2e759c9a1a192d5ad"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/zia-08ca8b7298d95cb9
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test translating::tokens::triplet ... ok
[INFO] [stdout] test translating::tokens::pair ... ok
[INFO] [stdout] test translating::tokens::lambda ... ok
[INFO] [stderr]      Running /opt/crater/target/debug/deps/definitions-681b99ffe1905b2a
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 18 tests
[INFO] [stdout] test fresh_pair ... ok
[INFO] [stdout] test fresh_nested_pairs ... ok
[INFO] [stdout] test defining_fresh_symbol_as_used_pair ... ok
[INFO] [stdout] test definition_loop ... ok
[INFO] [stdout] test fresh_symbol ... ok
[INFO] [stdout] test defining_used_symbol_as_used_pair ... ok
[INFO] [stdout] test defining_used_symbol_as_fresh_pair ... ok
[INFO] [stdout] test bad_refactor ... ok
[INFO] [stdout] test chained_definitions_loop ... ok
[INFO] [stdout] test fresh_refactor ... ok
[INFO] [stdout] test old_pair ... ok
[INFO] [stdout] test pair_on_the_left ... ok
[INFO] [stdout] test redundantly_remove_definition ... ok
[INFO] [stdout] test redundancy ... ok
[INFO] [stdout] test nested_definition_loop ... ok
[INFO] [stdout] test refactor ... ok
[INFO] [stdout] test setting_definition_of_concrete ... 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/crater/target/debug/deps/definitions_and_reductions-32c89a71ffe22b78
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test indirect_reduction ... ok
[INFO] [stdout] test reducing_nested_definition ... ok
[INFO] [stdout] test sneeky_infinite_reduction_chain ... 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/crater/target/debug/deps/program_recognition-8971f9bab67c44de
[INFO] [stdout] 
[INFO] [stdout] running 9 tests
[INFO] [stdout] test used_symbol_in_a_nested_pair_is_not_a_program ... ok
[INFO] [stdout] test fresh_symbol_is_not_a_program ... ok
[INFO] [stdout] test used_symbol_in_a_pair_is_not_a_program ... ok
[INFO] [stdout] test fresh_nested_pair_is_not_a_program ... ok
[INFO] [stdout] test fresh_pair_is_not_a_program ... ok
[INFO] [stdout] test symbol_whose_normal_form_is_a_builtin_concept ... ok
[INFO] [stdout] test symbol_whose_normal_form_is_a_program ... ok
[INFO] [stdout] test symbol_whose_definition_is_a_program_is_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/crater/target/debug/deps/reductions-83ce1c9bcec45ba4
[INFO] [stdout] 
[INFO] [stdout] running 14 tests
[INFO] [stdout] test infinite_expansion ... ok
[INFO] [stdout] test chain ... ok
[INFO] [stdout] test cycle ... ok
[INFO] [stdout] test pair_to_symbol ... ok
[INFO] [stdout] test reducing_concrete ... ok
[INFO] [stdout] test redundancy ... ok
[INFO] [stdout] test remove_reduction ... ok
[INFO] [stderr]      Running /opt/crater/target/debug/deps/syntax-5037db91ac7316f8
[INFO] [stdout] test nested_pairs_to_symbol ... ok
[INFO] [stdout] test change_reduction_rule ... ok
[INFO] [stdout] test symbol_to_symbol ... ok
[INFO] [stdout] test leapfrog_reduction_rule ... ok
[INFO] [stdout] test trivial_parentheses ... ok
[INFO] [stdout] test broken_end_chain ... ok
[INFO] [stdout] test broken_middle_chain ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 14 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[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" "397981a51fa066c9c3787efeeb13c6c997f9f82fcb429bf2e759c9a1a192d5ad"`
[INFO] running `"docker" "rm" "-f" "397981a51fa066c9c3787efeeb13c6c997f9f82fcb429bf2e759c9a1a192d5ad"`
[INFO] [stdout] 397981a51fa066c9c3787efeeb13c6c997f9f82fcb429bf2e759c9a1a192d5ad