[INFO] fetching crate exmex 0.9.4...
[INFO] testing exmex-0.9.4 against 1.55.0 for beta-1.56-1
[INFO] extracting crate exmex 0.9.4 into /workspace/builds/worker-12/source
[INFO] validating manifest of crates.io crate exmex 0.9.4 on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate exmex 0.9.4
[INFO] finished tweaking crates.io crate exmex 0.9.4
[INFO] tweaked toml for crates.io crate exmex 0.9.4 written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b0d33f8df266cb92c7b4f74a30aed4bb00a7168b3439618e4f657f6fab86a04a
[INFO] running `Command { std: "docker" "start" "-a" "b0d33f8df266cb92c7b4f74a30aed4bb00a7168b3439618e4f657f6fab86a04a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b0d33f8df266cb92c7b4f74a30aed4bb00a7168b3439618e4f657f6fab86a04a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b0d33f8df266cb92c7b4f74a30aed4bb00a7168b3439618e4f657f6fab86a04a", kill_on_drop: false }`
[INFO] [stdout] b0d33f8df266cb92c7b4f74a30aed4bb00a7168b3439618e4f657f6fab86a04a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 87b5c6166f25507d54bdb0336fc892133d5f99a098c9bc1823d884d961244c48
[INFO] running `Command { std: "docker" "start" "-a" "87b5c6166f25507d54bdb0336fc892133d5f99a098c9bc1823d884d961244c48", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-bigint v0.4.2
[INFO] [stderr]    Compiling num-rational v0.4.0
[INFO] [stderr]    Compiling num-complex v0.4.0
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]    Compiling num v0.4.0
[INFO] [stderr]    Compiling exmex v0.9.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 10.25s
[INFO] running `Command { std: "docker" "inspect" "87b5c6166f25507d54bdb0336fc892133d5f99a098c9bc1823d884d961244c48", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "87b5c6166f25507d54bdb0336fc892133d5f99a098c9bc1823d884d961244c48", kill_on_drop: false }`
[INFO] [stdout] 87b5c6166f25507d54bdb0336fc892133d5f99a098c9bc1823d884d961244c48
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 10c1081b41e0bfa721aed6ea75c8285772115a2cdd59adb3190a11e4ad81fbac
[INFO] running `Command { std: "docker" "start" "-a" "10c1081b41e0bfa721aed6ea75c8285772115a2cdd59adb3190a11e4ad81fbac", kill_on_drop: false }`
[INFO] [stderr]    Compiling nom v1.2.4
[INFO] [stderr]    Compiling rsc v2.0.0
[INFO] [stderr]    Compiling evalexpr v6.5.0
[INFO] [stderr]    Compiling fasteval v0.2.4
[INFO] [stderr]    Compiling bstr v0.2.16
[INFO] [stderr]    Compiling csv-core v0.1.10
[INFO] [stderr]    Compiling serde_test v1.0.130
[INFO] [stderr]    Compiling plotters v0.3.1
[INFO] [stderr]    Compiling meval v0.2.0
[INFO] [stderr]    Compiling csv v1.1.6
[INFO] [stderr]    Compiling criterion v0.3.5
[INFO] [stderr]    Compiling exmex v0.9.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 40.13s
[INFO] running `Command { std: "docker" "inspect" "10c1081b41e0bfa721aed6ea75c8285772115a2cdd59adb3190a11e4ad81fbac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "10c1081b41e0bfa721aed6ea75c8285772115a2cdd59adb3190a11e4ad81fbac", kill_on_drop: false }`
[INFO] [stdout] 10c1081b41e0bfa721aed6ea75c8285772115a2cdd59adb3190a11e4ad81fbac
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 7e7ef6a70a2ed1f065417906480385658be0ef8f69e24fa69910352beba57d71
[INFO] running `Command { std: "docker" "start" "-a" "7e7ef6a70a2ed1f065417906480385658be0ef8f69e24fa69910352beba57d71", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.07s
[INFO] [stdout] running 38 tests
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/exmex-388679643e0e01c4)
[INFO] [stdout] test expression::deep::test_operator_overloading ... ok
[INFO] [stdout] test expression::deep::test_deep_compile ... ok
[INFO] [stdout] test expression::deep::test_partial_finite ... ok
[INFO] [stdout] test expression::flat::test_operate_unary ... ok
[INFO] [stdout] test expression::partial_derivatives::test_num_ops ... ok
[INFO] [stdout] test expression::deep::test_var_name_union ... ok
[INFO] [stdout] test expression::partial_derivatives::test_partial ... ok
[INFO] [stdout] test expression::flat::test_unparse ... ok
[INFO] [stdout] test expression::deep::test_reset_vars ... ok
[INFO] [stdout] test expression::partial_derivatives::test_partial_3_vars ... ok
[INFO] [stdout] test expression::flat::test_display ... ok
[INFO] [stdout] test expression::deep::test_var_names ... ok
[INFO] [stdout] test expression::flat::test_flat_compile ... ok
[INFO] [stdout] test expression::flat::test_operator_overloading ... ok
[INFO] [stdout] test expression::partial_derivatives::test_partial_combined ... ok
[INFO] [stdout] test expression::partial_derivatives::test_partial_cos_squared ... ok
[INFO] [stdout] test parser::test_is_numeric ... ok
[INFO] [stdout] test expression::flat::test_flat_clear ... ok
[INFO] [stdout] test expression::partial_derivatives::test_partial_derivative_first_var ... ok
[INFO] [stdout] test expression::partial_derivatives::test_partial_outer ... ok
[INFO] [stdout] test expression::partial_derivatives::test_partial_inner ... ok
[INFO] [stdout] test tests::test_custom_ops_invert ... ok
[INFO] [stdout] test expression::serde::test_ser_de ... ok
[INFO] [stdout] test parser::test_tokenize_and_analze ... ok
[INFO] [stdout] test expression::deep::test_deep_compile_2 ... ok
[INFO] [stdout] test expression::partial_derivatives::test_partial_derivative_second_var ... ok
[INFO] [stdout] test tests::test_eval ... ok
[INFO] [stdout] test expression::partial_derivatives::test_partial_x2x ... ok
[INFO] [stdout] test expression::partial_derivatives::test_partial_derivative_simple ... ok
[INFO] [stdout] test tests::test_variables_curly ... ok
[INFO] [stdout] test parser::test_preconditions ... ok
[INFO] [stdout] test tests::test_error_handling ... ok
[INFO] [stdout] test tests::test_custom_ops ... ok
[INFO] [stdout] test tests::test_variables_curly_space_names ... ok
[INFO] [stdout] test tests::test_serde_public_interface ... ok
[INFO] [stdout] test tests::test_readme ... ok
[INFO] [stderr]    Doc-tests exmex
[INFO] [stdout] test tests::test_variables ... ok
[INFO] [stdout] test tests::test_partial ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 38 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.07s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 14 tests
[INFO] [stdout] test src/operators.rs - operators::Operator (line 8) ... ok
[INFO] [stdout] test src/lib.rs - (line 199) ... ok
[INFO] [stdout] test src/expression/flat.rs - expression::flat::FlatEx::unparse (line 151) ... ok
[INFO] [stdout] test src/lib.rs - (line 156) ... ok
[INFO] [stdout] test src/lib.rs - (line 178) ... ok
[INFO] [stdout] test src/lib.rs - (line 217) ... ok
[INFO] [stdout] test src/lib.rs - (line 137) ... ok
[INFO] [stdout] test src/expression/flat.rs - expression::flat::FlatEx::partial (line 96) ... ok
[INFO] [stdout] test src/lib.rs - (line 24) ... ok
[INFO] [stdout] test src/lib.rs - (line 4) ... ok
[INFO] [stdout] test src/lib.rs - (line 103) ... ok
[INFO] [stdout] test src/lib.rs - (line 56) ... ok
[INFO] [stdout] test src/lib.rs - (line 40) ... ok
[INFO] [stdout] test src/expression/flat.rs - expression::flat::FlatEx (line 37) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 14 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 1.62s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "7e7ef6a70a2ed1f065417906480385658be0ef8f69e24fa69910352beba57d71", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7e7ef6a70a2ed1f065417906480385658be0ef8f69e24fa69910352beba57d71", kill_on_drop: false }`
[INFO] [stdout] 7e7ef6a70a2ed1f065417906480385658be0ef8f69e24fa69910352beba57d71