[INFO] fetching crate symbolics_core 0.1.5...
[INFO] testing symbolics_core-0.1.5 against master#62efba8a050c64249dab942951bb28f710208bc8 for pr-90799
[INFO] extracting crate symbolics_core 0.1.5 into /workspace/builds/worker-12/source
[INFO] validating manifest of crates.io crate symbolics_core 0.1.5 on toolchain 62efba8a050c64249dab942951bb28f710208bc8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate symbolics_core 0.1.5
[INFO] finished tweaking crates.io crate symbolics_core 0.1.5
[INFO] tweaked toml for crates.io crate symbolics_core 0.1.5 written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 431297c2d8c18385c6c28296a60183ed2bd916d429c33997e90fdd77f22e2ee2
[INFO] running `Command { std: "docker" "start" "-a" "431297c2d8c18385c6c28296a60183ed2bd916d429c33997e90fdd77f22e2ee2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "431297c2d8c18385c6c28296a60183ed2bd916d429c33997e90fdd77f22e2ee2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "431297c2d8c18385c6c28296a60183ed2bd916d429c33997e90fdd77f22e2ee2", kill_on_drop: false }`
[INFO] [stdout] 431297c2d8c18385c6c28296a60183ed2bd916d429c33997e90fdd77f22e2ee2
[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=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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2695c90c1debf5f09f0b90b396c3f3f95d5a47a599d3828fc5d5350dce48c198
[INFO] running `Command { std: "docker" "start" "-a" "2695c90c1debf5f09f0b90b396c3f3f95d5a47a599d3828fc5d5350dce48c198", kill_on_drop: false }`
[INFO] [stderr]    Compiling symbolics_core v0.1.5 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.36s
[INFO] running `Command { std: "docker" "inspect" "2695c90c1debf5f09f0b90b396c3f3f95d5a47a599d3828fc5d5350dce48c198", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2695c90c1debf5f09f0b90b396c3f3f95d5a47a599d3828fc5d5350dce48c198", kill_on_drop: false }`
[INFO] [stdout] 2695c90c1debf5f09f0b90b396c3f3f95d5a47a599d3828fc5d5350dce48c198
[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=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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4c51cc2ed719934cf0c3c72a1324f4881666036b98f7a6c8626af6449d438965
[INFO] running `Command { std: "docker" "start" "-a" "4c51cc2ed719934cf0c3c72a1324f4881666036b98f7a6c8626af6449d438965", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling symbolics_core v0.1.5 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]  --> tests/building.rs:9:117
[INFO] [stdout]   |
[INFO] [stdout] 9 |     "Add(Add(Mul(Symbol(\"a\"), Pow(Symbol(\"x\"), Num(2.0))), Mul(Symbol(\"b\"), Symbol(\"x\"))), Symbol(\"c\"))");;
[INFO] [stdout]   |                                                                                                                     ^ help: remove this semicolon
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.17s
[INFO] running `Command { std: "docker" "inspect" "4c51cc2ed719934cf0c3c72a1324f4881666036b98f7a6c8626af6449d438965", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4c51cc2ed719934cf0c3c72a1324f4881666036b98f7a6c8626af6449d438965", kill_on_drop: false }`
[INFO] [stdout] 4c51cc2ed719934cf0c3c72a1324f4881666036b98f7a6c8626af6449d438965
[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=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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] c1a7a8f7d88fe8dea37f6fa00f09770f5d83ceb2ef6c963660051af955a1c9a3
[INFO] running `Command { std: "docker" "start" "-a" "c1a7a8f7d88fe8dea37f6fa00f09770f5d83ceb2ef6c963660051af955a1c9a3", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] warning: unnecessary trailing semicolon
[INFO] [stderr]  --> tests/building.rs:9:117
[INFO] [stderr]   |
[INFO] [stderr] 9 |     "Add(Add(Mul(Symbol(\"a\"), Pow(Symbol(\"x\"), Num(2.0))), Mul(Symbol(\"b\"), Symbol(\"x\"))), Symbol(\"c\"))");;
[INFO] [stderr]   |                                                                                                                     ^ help: remove this semicolon
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `symbolics_core` (test "building") generated 1 warning
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.22s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/symbolics_core-71c0a2c95302974e)
[INFO] [stdout] 
[INFO] [stdout] running 19 tests
[INFO] [stdout] test expr::apply::batch ... ok
[INFO] [stdout] test expr::overloads::add::expr_expr ... ok
[INFO] [stdout] test expr::apply::expr ... ok
[INFO] [stdout] test expr::overloads::add::expr_f64 ... ok
[INFO] [stdout] test expr::apply::one ... ok
[INFO] [stdout] test expr::overloads::add::f64_expr ... ok
[INFO] [stdout] test expr::overloads::div::expr_expr ... ok
[INFO] [stdout] test expr::overloads::div::expr_f64 ... ok
[INFO] [stdout] test expr::overloads::div::f64_expr ... ok
[INFO] [stdout] test expr::overloads::mul::expr_f64 ... ok
[INFO] [stdout] test expr::overloads::mul::expr_expr ... ok
[INFO] [stdout] test expr::overloads::mul::f64_expr ... ok
[INFO] [stdout] test expr::overloads::neg::expr ... ok
[INFO] [stdout] test expr::overloads::pow::expr_expr ... ok
[INFO] [stdout] test expr::overloads::pow::expr_f64 ... ok
[INFO] [stdout] test expr::overloads::pow::f64_expr ... ok
[INFO] [stdout] test expr::overloads::sub::expr_expr ... ok
[INFO] [stdout] test expr::overloads::sub::expr_f64 ... ok
[INFO] [stdout] test expr::overloads::sub::f64_expr ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 19 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/building.rs (/opt/rustwide/target/debug/deps/building-2eaaf1c375eb9b88)
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test exponential_nref ... ok
[INFO] [stdout] test quadratic_s ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests symbolics_core
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test src/macros.rs - macros::apply (line 23) ... ok
[INFO] [stdout] test src/macros.rs - macros::s (line 6) ... ok
[INFO] [stdout] test src/expr/apply.rs - expr::apply::Expr::apply1 (line 27) ... ok
[INFO] [stdout] test src/macros.rs - macros::apply (line 32) ... ok
[INFO] [stdout] test src/expr/apply.rs - expr::apply::Expr::apply1 (line 37) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.33s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "c1a7a8f7d88fe8dea37f6fa00f09770f5d83ceb2ef6c963660051af955a1c9a3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c1a7a8f7d88fe8dea37f6fa00f09770f5d83ceb2ef6c963660051af955a1c9a3", kill_on_drop: false }`
[INFO] [stdout] c1a7a8f7d88fe8dea37f6fa00f09770f5d83ceb2ef6c963660051af955a1c9a3