[INFO] fetching crate rust-expression 0.2.0...
[INFO] testing rust-expression-0.2.0 against 1.49.0 for beta-1.50-1
[INFO] extracting crate rust-expression 0.2.0 into /workspace/builds/worker-13/source
[INFO] validating manifest of crates.io crate rust-expression 0.2.0 on toolchain 1.49.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rust-expression 0.2.0
[INFO] finished tweaking crates.io crate rust-expression 0.2.0
[INFO] tweaked toml for crates.io crate rust-expression 0.2.0 written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] crate crates.io crate rust-expression 0.2.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: only one of `license` or `license-file` is necessary
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8888fc0c1e5b66be2f42fb8a7b06a0728bac97e71e2362d9945619e57a699c02
[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" "8888fc0c1e5b66be2f42fb8a7b06a0728bac97e71e2362d9945619e57a699c02", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8888fc0c1e5b66be2f42fb8a7b06a0728bac97e71e2362d9945619e57a699c02", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8888fc0c1e5b66be2f42fb8a7b06a0728bac97e71e2362d9945619e57a699c02", kill_on_drop: false }`
[INFO] [stdout] 8888fc0c1e5b66be2f42fb8a7b06a0728bac97e71e2362d9945619e57a699c02
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ff4490956eaead4a39b658f33c7904531bf12860047af143f90437a44341ae2e
[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" "ff4490956eaead4a39b658f33c7904531bf12860047af143f90437a44341ae2e", kill_on_drop: false }`
[INFO] [stderr] warning: only one of `license` or `license-file` is necessary
[INFO] [stderr]    Compiling syn v1.0.56
[INFO] [stderr]    Compiling pest_generator v2.1.3
[INFO] [stderr]    Compiling thiserror-impl v1.0.23
[INFO] [stderr]    Compiling pest_derive v2.1.0
[INFO] [stderr]    Compiling thiserror v1.0.23
[INFO] [stderr]    Compiling rust-expression v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 14.60s
[INFO] running `Command { std: "docker" "inspect" "ff4490956eaead4a39b658f33c7904531bf12860047af143f90437a44341ae2e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ff4490956eaead4a39b658f33c7904531bf12860047af143f90437a44341ae2e", kill_on_drop: false }`
[INFO] [stdout] ff4490956eaead4a39b658f33c7904531bf12860047af143f90437a44341ae2e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ce000853a5cc072f355b05d2889124e7cd3dbe333fbcc7f502c47f238bb71a82
[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" "ce000853a5cc072f355b05d2889124e7cd3dbe333fbcc7f502c47f238bb71a82", kill_on_drop: false }`
[INFO] [stderr] warning: only one of `license` or `license-file` is necessary
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling phf v0.8.0
[INFO] [stderr]    Compiling smallstr v0.2.0
[INFO] [stderr]    Compiling getrandom v0.1.15
[INFO] [stderr]    Compiling dirs-sys v0.3.5
[INFO] [stderr]    Compiling nom v5.1.2
[INFO] [stderr]    Compiling dirs v1.0.5
[INFO] [stderr]    Compiling dirs v2.0.2
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling rand_pcg v0.2.1
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling phf_generator v0.8.0
[INFO] [stderr]    Compiling phf_codegen v0.8.0
[INFO] [stderr]    Compiling terminfo v0.7.3
[INFO] [stderr]    Compiling mortal v0.2.2
[INFO] [stderr]    Compiling linefeed v0.6.0
[INFO] [stderr]    Compiling rust-expression v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 25.45s
[INFO] running `Command { std: "docker" "inspect" "ce000853a5cc072f355b05d2889124e7cd3dbe333fbcc7f502c47f238bb71a82", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ce000853a5cc072f355b05d2889124e7cd3dbe333fbcc7f502c47f238bb71a82", kill_on_drop: false }`
[INFO] [stdout] ce000853a5cc072f355b05d2889124e7cd3dbe333fbcc7f502c47f238bb71a82
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] b8f43c9b8a758db0326bbd758d41fbe536ecadb0aec91a66c011e2e1f10b423a
[INFO] running `Command { std: "docker" "start" "-a" "b8f43c9b8a758db0326bbd758d41fbe536ecadb0aec91a66c011e2e1f10b423a", kill_on_drop: false }`
[INFO] [stderr] warning: only one of `license` or `license-file` is necessary
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/rust_expression-bc0f2db2b80d1baf
[INFO] [stdout] 
[INFO] [stdout] running 50 tests
[INFO] [stdout] test calc::tests::calc_sym_known ... ok
[INFO] [stdout] test calc::tests::read_env_var ... ok
[INFO] [stdout] test calc::tests::read_env_empty ... ok
[INFO] [stdout] test calc::tests::calc_term_sub ... ok
[INFO] [stdout] test calc::tests::calc_sym_unknown ... ok
[INFO] [stdout] test parser::tests::parse_fun_no_args ... ok
[INFO] [stdout] test parser::tests::parse_fun_x ... ok
[INFO] [stdout] test parser::tests::parse_number ... ok
[INFO] [stdout] test parser::tests::parse_symbol ... ok
[INFO] [stdout] test parser::tests::parse_symbol_add ... ok
[INFO] [stdout] test parser::tests::parse_term_add ... ok
[INFO] [stdout] test parser::tests::parse_fun_call_without_params ... ok
[INFO] [stdout] test calc::tests::calc_term_add ... ok
[INFO] [stdout] test ast::tests::operand_is_symbol ... ok
[INFO] [stdout] test parser::tests::parse_term_precedence_sub_div_pow ... ok
[INFO] [stdout] test parser::tests::parse_term_precedence_add_mul ... ok
[INFO] [stdout] test parser::tests::parse_solve_for ... ok
[INFO] [stdout] test parser::tests::parse_a_is_1 ... ok
[INFO] [stdout] test parser::tests::parse_fun_call_with_number ... ok
[INFO] [stdout] test solver::tests::normalize_operand_number ... ok
[INFO] [stdout] test calc::tests::calc_term_div ... ok
[INFO] [stdout] test calc::tests::calc_term_pow ... ok
[INFO] [stdout] test calc::tests::calc_term_rem ... ok
[INFO] [stdout] test calc::tests::calc_term_mul ... ok
[INFO] [stdout] test solver::tests::normalize_operand_simple_norm_form ... ok
[INFO] [stdout] test solver::tests::normalize_operand_simple_mul ... ok
[INFO] [stdout] test solver::tests::normalize_operand_simple_norm_sub ... ok
[INFO] [stdout] test calc::tests::calc_equation_simple ... ok
[INFO] [stdout] test solver::tests::normalize_operand_simple_sub ... ok
[INFO] [stdout] test calc::tests::calc_simple_function_call ... ok
[INFO] [stdout] test ast::tests::operand_is_not_symbol ... ok
[INFO] [stdout] test solver::tests::normalize_operand_symbol_x ... ok
[INFO] [stdout] test calc::tests::calc_number_atom ... ok
[INFO] [stdout] test solver::tests::solve_for_with_function_call ... ok
[INFO] [stdout] test solver::tests::solve_for_complex ... ok
[INFO] [stdout] test tests::simple_calc ... ok
[INFO] [stdout] test tests::simple_function ... ok
[INFO] [stdout] test solver::tests::normalize_operand_simple_pow ... ok
[INFO] [stdout] test solver::tests::normalize_operand_simple_rem ... ok
[INFO] [stdout] test solver::tests::normalize_operand_symbol_y ... ok
[INFO] [stdout] test solver::tests::normalize_operand_symbol_y_unknown ... ok
[INFO] [stdout] test parser::tests::parse_fun_call_with_symbol ... ok
[INFO] [stdout] test solver::tests::normalize_operand_simple_add ... ok
[INFO] [stdout] test solver::tests::solve_for_simple ... ok
[INFO] [stdout] test parser::tests::parse_term_mul ... ok
[INFO] [stdout] test solver::tests::normalize_operand_div ... ok
[INFO] [stdout] test tests::simple_assign ... ok
[INFO] [stdout] test solver::tests::helpers::parse_expression_success ... ok
[INFO] [stdout] test solver::tests::helpers::parse_expression_failed_equation ... ok
[INFO] [stdout] test solver::tests::helpers::parse_expression_failed_assignment ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 50 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests rust-expression
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test src/lib.rs - Calculator::execute (line 46) ... ok
[INFO] [stdout] test src/lib.rs - Calculator::execute (line 61) ... ok
[INFO] [stdout] test src/lib.rs - Calculator::execute (line 53) ... ok
[INFO] [stdout] test src/lib.rs - Calculator::execute (line 69) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "b8f43c9b8a758db0326bbd758d41fbe536ecadb0aec91a66c011e2e1f10b423a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b8f43c9b8a758db0326bbd758d41fbe536ecadb0aec91a66c011e2e1f10b423a", kill_on_drop: false }`
[INFO] [stdout] b8f43c9b8a758db0326bbd758d41fbe536ecadb0aec91a66c011e2e1f10b423a