[INFO] fetching crate genetic_regression 0.5.8...
[INFO] testing genetic_regression-0.5.8 against 1.99.0-beta.8+cargoflags=--release for beta-release-1.100-2
[INFO] extracting crate genetic_regression 0.5.8 into /workspace/builds/worker-7-tc1/source
[INFO] started tweaking crates.io crate genetic_regression 0.5.8
[INFO] finished tweaking crates.io crate genetic_regression 0.5.8
[INFO] tweaked toml for crates.io crate genetic_regression 0.5.8 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate genetic_regression 0.5.8 on toolchain 1.99.0-beta.8
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.99.0-beta.8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate genetic_regression 0.5.8 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" "+1.99.0-beta.8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded proc-macro2 v1.0.105
[INFO] [stderr]   Downloaded rand_core v0.10.0
[INFO] [stderr]   Downloaded quote v1.0.43
[INFO] [stderr]   Downloaded ordered-float v5.1.0
[INFO] [stderr]   Downloaded getrandom v0.4.1
[INFO] [stderr]   Downloaded portable-atomic-util v0.2.5
[INFO] [stderr]   Downloaded smartcore v0.5.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:77db811e55d90add9212f6832c23229e3de5f1c1f9905e8cb07319ea15df73ac" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] ba20ce0834f7944687bae1367d067d120934634b831650c3184bb01e4a8b589f
[INFO] running `Command { std: "docker" "start" "ba20ce0834f7944687bae1367d067d120934634b831650c3184bb01e4a8b589f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ba20ce0834f7944687bae1367d067d120934634b831650c3184bb01e4a8b589f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "ba20ce0834f7944687bae1367d067d120934634b831650c3184bb01e4a8b589f" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ba20ce0834f7944687bae1367d067d120934634b831650c3184bb01e4a8b589f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-w" "/opt/rustwide/workdir" "--user" "0:0" "ba20ce0834f7944687bae1367d067d120934634b831650c3184bb01e4a8b589f" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "build" "--frozen" "--message-format=json" "--release", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.5.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.105
[INFO] [stderr]    Compiling crossbeam-utils v0.8.21
[INFO] [stderr]    Compiling quote v1.0.43
[INFO] [stderr]    Compiling libc v0.2.180
[INFO] [stderr]    Compiling getrandom v0.4.1
[INFO] [stderr]    Compiling rand_core v0.10.0
[INFO] [stderr]    Compiling serde_core v1.0.228
[INFO] [stderr]    Compiling rayon-core v1.13.0
[INFO] [stderr]    Compiling chacha20 v0.10.0
[INFO] [stderr]    Compiling rawpointer v0.2.1
[INFO] [stderr]    Compiling memchr v2.7.6
[INFO] [stderr]    Compiling ryu v1.0.22
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling matrixmultiply v0.3.10
[INFO] [stderr]    Compiling either v1.15.0
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.18
[INFO] [stderr]    Compiling crossbeam-deque v0.8.6
[INFO] [stderr]    Compiling syn v2.0.114
[INFO] [stderr]    Compiling csv-core v0.1.13
[INFO] [stderr]    Compiling strum v0.28.0
[INFO] [stderr]    Compiling num-integer v0.1.46
[INFO] [stderr]    Compiling num-complex v0.4.6
[INFO] [stderr]    Compiling ordered-float v5.1.0
[INFO] [stderr]    Compiling rand v0.10.1
[INFO] [stderr]    Compiling num-bigint v0.4.6
[INFO] [stderr]    Compiling num-iter v0.1.45
[INFO] [stderr]    Compiling approx v0.5.1
[INFO] [stderr]    Compiling ndarray v0.17.2
[INFO] [stderr]    Compiling rayon v1.12.0
[INFO] [stderr]    Compiling csv v1.4.0
[INFO] [stderr]    Compiling serde_derive v1.0.228
[INFO] [stderr]    Compiling strum_macros v0.28.0
[INFO] [stderr]    Compiling num-rational v0.4.2
[INFO] [stderr]    Compiling num v0.4.3
[INFO] [stderr]    Compiling smartcore v0.5.0
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]    Compiling genetic_regression v0.5.8 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `release` profile [optimized] target(s) in 54.62s
[INFO] running `Command { std: "docker" "inspect" "ba20ce0834f7944687bae1367d067d120934634b831650c3184bb01e4a8b589f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-w" "/opt/rustwide/workdir" "--user" "0:0" "ba20ce0834f7944687bae1367d067d120934634b831650c3184bb01e4a8b589f" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "test" "--frozen" "--no-run" "--message-format=json" "--release", kill_on_drop: false }`
[INFO] [stderr]    Compiling genetic_regression v0.5.8 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `release` profile [optimized] target(s) in 7.09s
[INFO] running `Command { std: "docker" "inspect" "ba20ce0834f7944687bae1367d067d120934634b831650c3184bb01e4a8b589f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-w" "/opt/rustwide/workdir" "--user" "0:0" "ba20ce0834f7944687bae1367d067d120934634b831650c3184bb01e4a8b589f" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "test" "--frozen" "--release", kill_on_drop: false }`
[INFO] [stderr]     Finished `release` profile [optimized] target(s) in 0.06s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/release/deps/genetic_regression-b4044d3d1e6e2094)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test tests::it_works ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- tests::it_works stdout ----
[INFO] [stdout] 
[INFO] [stdout] thread 'tests::it_works' (842) panicked at src/lib.rs:623:14:
[INFO] [stdout] called `Result::unwrap()` on an `Err` value: Error(Io(Os { code: 30, kind: ReadOnlyFilesystem, message: "Read-only file system" }))
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x5a816827c651 - <<std[70759c8f55707aa4]::sys::backtrace::BacktraceLock>::print::DisplayBacktrace as core[df12db4294e9bfd3]::fmt::Display>::fmt
[INFO] [stdout]    1:     0x5a816829171a - core[df12db4294e9bfd3]::fmt::write
[INFO] [stdout]    2:     0x5a8168280b3c - <alloc[2182bb758b4b3781]::vec::Vec<u8> as core[df12db4294e9bfd3]::io::write::Write>::write_fmt
[INFO] [stdout]    3:     0x5a81682586f6 - std[70759c8f55707aa4]::panicking::default_hook::{closure#0}
[INFO] [stdout]    4:     0x5a8168274999 - std[70759c8f55707aa4]::panicking::default_hook
[INFO] [stdout]    5:     0x5a81682078b0 - test[9d35eded1c95d3be]::test_main_inner::<test[9d35eded1c95d3be]::test_main_static::{closure#0}>::{closure#0}
[INFO] [stdout]    6:     0x5a8168274cc2 - std[70759c8f55707aa4]::panicking::panic_with_hook
[INFO] [stdout]    7:     0x5a81682587a2 - std[70759c8f55707aa4]::panicking::panic_handler::{closure#0}
[INFO] [stdout]    8:     0x5a8168251529 - std[70759c8f55707aa4]::sys::backtrace::__rust_end_short_backtrace::<std[70759c8f55707aa4]::panicking::panic_handler::{closure#0}, !>
[INFO] [stdout]    9:     0x5a816825939d - __rustc[8fa7c3cbc660c2b3]::rust_begin_unwind
[INFO] [stdout]   10:     0x5a8168291e4c - core[df12db4294e9bfd3]::panicking::panic_fmt
[INFO] [stdout]   11:     0x5a8168291c22 - core[df12db4294e9bfd3]::result::unwrap_failed
[INFO] [stdout]   12:     0x5a81681e23d2 - genetic_regression[30e6199b66d628ce]::tests::it_works
[INFO] [stdout]   13:     0x5a81681d8019 - <genetic_regression[30e6199b66d628ce]::tests::it_works::{closure#0} as core[df12db4294e9bfd3]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]   14:     0x5a81681fab9b - test[9d35eded1c95d3be]::__rust_begin_short_backtrace::<core[df12db4294e9bfd3]::result::Result<(), alloc[2182bb758b4b3781]::string::String>, fn() -> core[df12db4294e9bfd3]::result::Result<(), alloc[2182bb758b4b3781]::string::String>>
[INFO] [stdout]   15:     0x5a8168208205 - test[9d35eded1c95d3be]::run_test::{closure#0}
[INFO] [stdout]   16:     0x5a8168201ac4 - std[70759c8f55707aa4]::sys::backtrace::__rust_begin_short_backtrace::<test[9d35eded1c95d3be]::run_test::{closure#1}, ()>
[INFO] [stdout]   17:     0x5a816820b362 - <std[70759c8f55707aa4]::thread::lifecycle::spawn_unchecked<test[9d35eded1c95d3be]::run_test::{closure#1}, ()>::{closure#1} as core[df12db4294e9bfd3]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
[INFO] [stdout]   18:     0x5a816827bd29 - <std[70759c8f55707aa4]::sys::thread::unix::Thread>::new::thread_start
[INFO] [stdout]   19:     0x7b2d14f9edfa - <unknown>
[INFO] [stdout]   20:     0x7b2d150323d4 - clone
[INFO] [stdout]   21:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     tests::it_works
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass `--lib`
[INFO] running `Command { std: "docker" "inspect" "ba20ce0834f7944687bae1367d067d120934634b831650c3184bb01e4a8b589f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ba20ce0834f7944687bae1367d067d120934634b831650c3184bb01e4a8b589f", kill_on_drop: false }`
[INFO] [stdout] ba20ce0834f7944687bae1367d067d120934634b831650c3184bb01e4a8b589f
