[INFO] fetching crate symbolic_math 0.1.2...
[INFO] testing symbolic_math-0.1.2 against try#dec9417b8611e34e787a3e4c37686b5131f9e5c5 for pr-154210-2
[INFO] extracting crate symbolic_math 0.1.2 into /workspace/builds/worker-7-tc2/source
[INFO] started tweaking crates.io crate symbolic_math 0.1.2
[INFO] finished tweaking crates.io crate symbolic_math 0.1.2
[INFO] tweaked toml for crates.io crate symbolic_math 0.1.2 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate symbolic_math 0.1.2 on toolchain dec9417b8611e34e787a3e4c37686b5131f9e5c5
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate symbolic_math 0.1.2 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f09e3aeb5f49bc2d23e1e29c7e899656435fb3ecb1af425ea029709aa9e7b25e
[INFO] running `Command { std: "docker" "start" "-a" "f09e3aeb5f49bc2d23e1e29c7e899656435fb3ecb1af425ea029709aa9e7b25e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f09e3aeb5f49bc2d23e1e29c7e899656435fb3ecb1af425ea029709aa9e7b25e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f09e3aeb5f49bc2d23e1e29c7e899656435fb3ecb1af425ea029709aa9e7b25e", kill_on_drop: false }`
[INFO] [stdout] f09e3aeb5f49bc2d23e1e29c7e899656435fb3ecb1af425ea029709aa9e7b25e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d7880f347c1935c7c37e1f2e30977e6e3a85a1eeec3782e3503f5c79a9ed2686
[INFO] running `Command { std: "docker" "start" "-a" "d7880f347c1935c7c37e1f2e30977e6e3a85a1eeec3782e3503f5c79a9ed2686", kill_on_drop: false }`
[INFO] [stderr]    Compiling symbolic_math v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.83s
[INFO] running `Command { std: "docker" "inspect" "d7880f347c1935c7c37e1f2e30977e6e3a85a1eeec3782e3503f5c79a9ed2686", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d7880f347c1935c7c37e1f2e30977e6e3a85a1eeec3782e3503f5c79a9ed2686", kill_on_drop: false }`
[INFO] [stdout] d7880f347c1935c7c37e1f2e30977e6e3a85a1eeec3782e3503f5c79a9ed2686
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f764657357abe6deff4e911a55d7cf22ad2e94eee1dd5974caab1b573a61eea8
[INFO] running `Command { std: "docker" "start" "-a" "f764657357abe6deff4e911a55d7cf22ad2e94eee1dd5974caab1b573a61eea8", kill_on_drop: false }`
[INFO] [stderr]    Compiling symbolic_math v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.80s
[INFO] running `Command { std: "docker" "inspect" "f764657357abe6deff4e911a55d7cf22ad2e94eee1dd5974caab1b573a61eea8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f764657357abe6deff4e911a55d7cf22ad2e94eee1dd5974caab1b573a61eea8", kill_on_drop: false }`
[INFO] [stdout] f764657357abe6deff4e911a55d7cf22ad2e94eee1dd5974caab1b573a61eea8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 4414ded90ace0ab50d8c140022d2a0ee8454932788a91dfbe6645fbb4cb767bb
[INFO] running `Command { std: "docker" "start" "-a" "4414ded90ace0ab50d8c140022d2a0ee8454932788a91dfbe6645fbb4cb767bb", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/symbolic_math-82df724852c9a0a2)
[INFO] [stdout] 
[INFO] [stdout] running 13 tests
[INFO] [stdout] test expr::eval::tests::eval_basic_operations ... ok
[INFO] [stdout] test expr::operations::tests::test_add ... ok
[INFO] [stdout] test expr::operations::tests::test_mul ... ok
[INFO] [stdout] test expr::simplify::tests::add_const ... ok
[INFO] [stdout] test expr::simplify::tests::add_like_terms ... ok
[INFO] [stdout] test expr::simplify::tests::div_const ... ok
[INFO] [stdout] test expr::simplify::tests::sub_const ... ok
[INFO] [stdout] test symbol::tests::correct_name ... ok
[INFO] [stdout] test expr::tests::add_const ... ok
[INFO] [stdout] test expr::simplify::tests::mul_const ... ok
[INFO] [stdout] test expr::expansion::tests::test_expansion ... ok
[INFO] [stdout] test expr::operations::tests::test_div ... ok
[INFO] [stdout] test expr::operations::tests::test_sub ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 13 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/symbolic_math-42e4b1e7b712a13c)
[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; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests symbolic_math
[INFO] [stdout] 
[INFO] [stdout] running 11 tests
[INFO] [stdout] test src/expr.rs - expr::Expr::new_var (line 40) ... ok
[INFO] [stdout] test src/expr/simplify.rs - expr::simplify::Expr::is_const (line 135) ... ok
[INFO] [stdout] test src/expr.rs - expr::Expr::get_symbol (line 70) ... ok
[INFO] [stdout] test src/expr.rs - expr::Expr::symbols (line 88) ... ok
[INFO] [stdout] test src/expr/operations.rs - expr::operations::Expr::pow (line 18) ... ok
[INFO] [stdout] test src/expr/simplify.rs - expr::simplify::Expr::simplify (line 11) ... ok
[INFO] [stdout] test src/expr/expansion.rs - expr::expansion::Expr::expand (line 11) ... ok
[INFO] [stdout] test src/expr.rs - expr::Expr::new_val (line 53) ... ok
[INFO] [stdout] test src/expr/eval.rs - expr::eval::Expr::eval (line 25) ... ok
[INFO] [stdout] test src/lib.rs - (line 35) ... ok
[INFO] [stdout] test src/expr/simplify.rs - expr::simplify::Expr::get_const (line 153) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 11 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.92s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "4414ded90ace0ab50d8c140022d2a0ee8454932788a91dfbe6645fbb4cb767bb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4414ded90ace0ab50d8c140022d2a0ee8454932788a91dfbe6645fbb4cb767bb", kill_on_drop: false }`
[INFO] [stdout] 4414ded90ace0ab50d8c140022d2a0ee8454932788a91dfbe6645fbb4cb767bb