[INFO] fetching crate ucalc_lib 0.0.1...
[INFO] testing ucalc_lib-0.0.1 against master#562dee4820c458d823175268e41601d4c060588a for pr-154210-2
[INFO] extracting crate ucalc_lib 0.0.1 into /workspace/builds/worker-0-tc1/source
[INFO] started tweaking crates.io crate ucalc_lib 0.0.1
[INFO] finished tweaking crates.io crate ucalc_lib 0.0.1
[INFO] tweaked toml for crates.io crate ucalc_lib 0.0.1 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate ucalc_lib 0.0.1 on toolchain 562dee4820c458d823175268e41601d4c060588a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate ucalc_lib 0.0.1 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" "+562dee4820c458d823175268e41601d4c060588a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded ucalc_numbers v0.0.1
[INFO] [stderr]   Downloaded az v1.3.0
[INFO] [stderr]   Downloaded fastnum v0.7.4
[INFO] [stderr]   Downloaded rug v1.28.1
[INFO] [stderr]   Downloaded gmp-mpfr-sys v1.6.8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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" "+562dee4820c458d823175268e41601d4c060588a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3fbb8ee63727707f428a5264f9a83bd923903960f39338e379a89492ff5b94c4
[INFO] running `Command { std: "docker" "start" "-a" "3fbb8ee63727707f428a5264f9a83bd923903960f39338e379a89492ff5b94c4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3fbb8ee63727707f428a5264f9a83bd923903960f39338e379a89492ff5b94c4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3fbb8ee63727707f428a5264f9a83bd923903960f39338e379a89492ff5b94c4", kill_on_drop: false }`
[INFO] [stdout] 3fbb8ee63727707f428a5264f9a83bd923903960f39338e379a89492ff5b94c4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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" "+562dee4820c458d823175268e41601d4c060588a" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 901ae48c7e2a2435b98e92b3979dd273ac7ddb09cf53133f7b2041e6da6f765f
[INFO] running `Command { std: "docker" "start" "-a" "901ae48c7e2a2435b98e92b3979dd273ac7ddb09cf53133f7b2041e6da6f765f", kill_on_drop: false }`
[INFO] [stderr]    Compiling ucalc_numbers v0.0.1
[INFO] [stderr]    Compiling ucalc_lib v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the feature `if_let_guard` has been stable since 1.95.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/lib.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(if_let_guard)]
[INFO] [stdout]   |            ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.20s
[INFO] running `Command { std: "docker" "inspect" "901ae48c7e2a2435b98e92b3979dd273ac7ddb09cf53133f7b2041e6da6f765f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "901ae48c7e2a2435b98e92b3979dd273ac7ddb09cf53133f7b2041e6da6f765f", kill_on_drop: false }`
[INFO] [stdout] 901ae48c7e2a2435b98e92b3979dd273ac7ddb09cf53133f7b2041e6da6f765f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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" "+562dee4820c458d823175268e41601d4c060588a" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] aad2bccc8fd06c2fdf05556a17d207fc381cb4e605c7b497fd8188af3b6ccc0e
[INFO] running `Command { std: "docker" "start" "-a" "aad2bccc8fd06c2fdf05556a17d207fc381cb4e605c7b497fd8188af3b6ccc0e", kill_on_drop: false }`
[INFO] [stdout] warning: the feature `if_let_guard` has been stable since 1.95.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/lib.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(if_let_guard)]
[INFO] [stdout]   |            ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling ucalc_lib v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the feature `if_let_guard` has been stable since 1.95.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/lib.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(if_let_guard)]
[INFO] [stdout]   |            ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 2.44s
[INFO] running `Command { std: "docker" "inspect" "aad2bccc8fd06c2fdf05556a17d207fc381cb4e605c7b497fd8188af3b6ccc0e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aad2bccc8fd06c2fdf05556a17d207fc381cb4e605c7b497fd8188af3b6ccc0e", kill_on_drop: false }`
[INFO] [stdout] aad2bccc8fd06c2fdf05556a17d207fc381cb4e605c7b497fd8188af3b6ccc0e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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" "+562dee4820c458d823175268e41601d4c060588a" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 09313733b3b439e5c1ba53b0d0a47496d7cf012338cb259a3fd42be9ac30f6d9
[INFO] running `Command { std: "docker" "start" "-a" "09313733b3b439e5c1ba53b0d0a47496d7cf012338cb259a3fd42be9ac30f6d9", kill_on_drop: false }`
[INFO] [stderr] warning: the feature `if_let_guard` has been stable since 1.95.0 and no longer requires an attribute to enable
[INFO] [stderr]  --> src/lib.rs:1:12
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(if_let_guard)]
[INFO] [stderr]   |            ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(stable_features)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `ucalc_lib` (lib) generated 1 warning
[INFO] [stderr] warning: `ucalc_lib` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.07s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/ucalc_lib-2820055f97973a69)
[INFO] [stdout] 
[INFO] [stdout] running 57 tests
[INFO] [stdout] test tests::parse_add ... ok
[INFO] [stdout] test tests::parse_atan ... ok
[INFO] [stdout] test tests::parse_arg ... ok
[INFO] [stdout] test tests::parse_acos ... ok
[INFO] [stdout] test tests::parse_asin ... ok
[INFO] [stdout] test tests::parse_cos ... ok
[INFO] [stdout] test tests::parse_cbrt ... ok
[INFO] [stdout] test tests::parse_abs ... ok
[INFO] [stdout] test tests::parse_cosh ... ok
[INFO] [stdout] test tests::parse_div ... ok
[INFO] [stdout] test tests::parse_erf ... ok
[INFO] [stdout] test tests::parse_exp ... ok
[INFO] [stdout] test tests::parse_ln ... ok
[INFO] [stdout] test tests::parse_fact ... ok
[INFO] [stdout] test tests::parse_erfc ... ok
[INFO] [stdout] test tests::parse_gamma ... ok
[INFO] [stdout] test tests::parse_min ... ok
[INFO] [stdout] test tests::parse_neg ... ok
[INFO] [stdout] test tests::parse_mul ... ok
[INFO] [stdout] test tests::parse_order_of_operations ... ok
[INFO] [stdout] test tests::parse_pow ... ok
[INFO] [stdout] test tests::parse_number ... ok
[INFO] [stdout] test tests::parse_quadratic ... ok
[INFO] [stdout] test tests::parse_sin ... ok
[INFO] [stdout] test tests::parse_root ... ok
[INFO] [stdout] test tests::parse_recip ... ok
[INFO] [stdout] test tests::parse_rem ... ok
[INFO] [stdout] test tests::parse_sinh ... ok
[INFO] [stdout] test tests::parse_sqrt ... ok
[INFO] [stdout] test tests::parse_sub ... ok
[INFO] [stdout] test tests::parse_tan ... ok
[INFO] [stdout] test tests::parse_vars ... ok
[INFO] [stdout] test tests::test_ceil ... ok
[INFO] [stdout] test tests::test_composed_functions ... ok
[INFO] [stdout] test tests::test_cmp ... ok
[INFO] [stdout] test tests::test_custom_functions ... ok
[INFO] [stdout] test tests::test_custom_var ... ok
[INFO] [stdout] test tests::test_err ... ok
[INFO] [stdout] test tests::test_if ... ok
[INFO] [stdout] test tests::test_fold ... ok
[INFO] [stdout] test tests::test_graph_vars ... ok
[INFO] [stdout] test tests::test_inner_fn ... ok
[INFO] [stdout] test tests::test_prod ... ok
[INFO] [stdout] test tests::test_poly_div ... ok
[INFO] [stdout] test tests::parse_conj ... ok
[INFO] [stdout] test tests::test_set ... ok
[INFO] [stdout] test tests::test_real ... ok
[INFO] [stdout] test tests::test_inner_functions ... ok
[INFO] [stdout] test tests::parse_tanh ... ok
[INFO] [stdout] test tests::test_solve ... ok
[INFO] [stdout] test tests::test_iter ... ok
[INFO] [stdout] test tests::test_recursion ... ok
[INFO] [stdout] test tests::test_subfactorial ... ok
[INFO] [stdout] test tests::test_sum ... ok
[INFO] [stdout] test tests::test_tetration ... ok
[INFO] [stderr]    Doc-tests ucalc_lib
[INFO] [stdout] test tests::parse_arctan ... ok
[INFO] [stdout] test tests::parse_max ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 57 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.03s
[INFO] [stdout] 
[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] running `Command { std: "docker" "inspect" "09313733b3b439e5c1ba53b0d0a47496d7cf012338cb259a3fd42be9ac30f6d9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "09313733b3b439e5c1ba53b0d0a47496d7cf012338cb259a3fd42be9ac30f6d9", kill_on_drop: false }`
[INFO] [stdout] 09313733b3b439e5c1ba53b0d0a47496d7cf012338cb259a3fd42be9ac30f6d9