[INFO] cloning repository https://github.com/albertp007/RustQ
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/albertp007/RustQ" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Falbertp007%2FRustQ", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Falbertp007%2FRustQ'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 1a058909edf8046d012232fb0e9393849316ed8a
[INFO] checking albertp007/RustQ against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Falbertp007%2FRustQ" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/albertp007/RustQ on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/albertp007/RustQ
[INFO] finished tweaking git repo https://github.com/albertp007/RustQ
[INFO] tweaked toml for git repo https://github.com/albertp007/RustQ written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/albertp007/RustQ 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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded rand v0.3.14
[INFO] [stderr]   Downloaded num_cpus v0.2.11
[INFO] [stderr]   Downloaded random v0.9.2
[INFO] [stderr]   Downloaded special v0.5.2
[INFO] [stderr]   Downloaded probability v0.12.4
[INFO] [stderr]   Downloaded libc v0.2.8
[INFO] [stderr]   Downloaded kernel32-sys v0.2.1
[INFO] [stderr]   Downloaded time v0.1.34
[INFO] [stderr]   Downloaded winapi v0.2.6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 97eb38cf65630f2558bea7465f7aab322b11278816de4dcd87b4fa1c7d9028bf
[INFO] running `Command { std: "docker" "start" "-a" "97eb38cf65630f2558bea7465f7aab322b11278816de4dcd87b4fa1c7d9028bf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "97eb38cf65630f2558bea7465f7aab322b11278816de4dcd87b4fa1c7d9028bf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "97eb38cf65630f2558bea7465f7aab322b11278816de4dcd87b4fa1c7d9028bf", kill_on_drop: false }`
[INFO] [stdout] 97eb38cf65630f2558bea7465f7aab322b11278816de4dcd87b4fa1c7d9028bf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 54a1abb930bec633c0a8bc316960333212dbdd82d892fb46e41c236973f4ab61
[INFO] running `Command { std: "docker" "start" "-a" "54a1abb930bec633c0a8bc316960333212dbdd82d892fb46e41c236973f4ab61", kill_on_drop: false }`
[INFO] [stderr]     Checking libc v0.2.8
[INFO] [stderr]    Compiling winapi-build v0.1.1
[INFO] [stderr]     Checking winapi v0.2.6
[INFO] [stderr]     Checking random v0.9.2
[INFO] [stderr]    Compiling kernel32-sys v0.2.1
[INFO] [stderr]     Checking special v0.5.2
[INFO] [stderr]     Checking rand v0.3.14
[INFO] [stderr]     Checking num_cpus v0.2.11
[INFO] [stderr]     Checking probability v0.12.4
[INFO] [stderr]     Checking time v0.1.34
[INFO] [stderr]     Checking rustq v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `option::OptionType::*`
[INFO] [stdout]    --> src/montecarlo.rs:374:9
[INFO] [stdout]     |
[INFO] [stdout] 374 |     use option::OptionType::*;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `option::BarrierUpDown::*`
[INFO] [stdout]    --> src/montecarlo.rs:376:9
[INFO] [stdout]     |
[INFO] [stdout] 376 |     use option::BarrierUpDown::*;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `option::BarrierInOut::*`
[INFO] [stdout]    --> src/montecarlo.rs:377:9
[INFO] [stdout]     |
[INFO] [stdout] 377 |     use option::BarrierInOut::*;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `montecarlo::VarianceReduction::*`
[INFO] [stdout]    --> src/montecarlo.rs:379:9
[INFO] [stdout]     |
[INFO] [stdout] 379 |     use montecarlo::VarianceReduction::*;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `HashMap` is imported redundantly
[INFO] [stdout]    --> src/lattice.rs:466:9
[INFO] [stdout]     |
[INFO] [stdout] 464 |     use lattice::*;
[INFO] [stdout]     |         ---------- the item `HashMap` is already imported here
[INFO] [stdout] 465 |     use std::cmp;
[INFO] [stdout] 466 |     use std::collections::HashMap;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `option::OptionType::*`
[INFO] [stdout]    --> src/lattice.rs:467:9
[INFO] [stdout]     |
[INFO] [stdout] 467 |     use option::OptionType::*;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `black_scholes` is imported redundantly
[INFO] [stdout]    --> src/lattice.rs:468:9
[INFO] [stdout]     |
[INFO] [stdout] 464 |     use lattice::*;
[INFO] [stdout]     |         ---------- the item `black_scholes` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 468 |     use option::black_scholes;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `option::BarrierInOut::*`
[INFO] [stdout]    --> src/lattice.rs:469:9
[INFO] [stdout]     |
[INFO] [stdout] 469 |     use option::BarrierInOut::*;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `option::BarrierUpDown::*`
[INFO] [stdout]    --> src/lattice.rs:470:9
[INFO] [stdout]     |
[INFO] [stdout] 470 |     use option::BarrierUpDown::*;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lattice.rs:90:9
[INFO] [stdout]    |
[INFO] [stdout] 90 |     Box<Fn(&Binomial, (isize, isize, isize), isize)->isize>;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 90 |     Box<dyn Fn(&Binomial, (isize, isize, isize), isize)->isize>;
[INFO] [stdout]    |         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/montecarlo.rs:58:27
[INFO] [stdout]    |
[INFO] [stdout] 58 | pub type PayoffFunc = Box<Fn(&Vec<f64>)->f64>;
[INFO] [stdout]    |                           ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 58 | pub type PayoffFunc = Box<dyn Fn(&Vec<f64>)->f64>;
[INFO] [stdout]    |                           +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lattice.rs:90:9
[INFO] [stdout]    |
[INFO] [stdout] 90 |     Box<Fn(&Binomial, (isize, isize, isize), isize)->isize>;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 90 |     Box<dyn Fn(&Binomial, (isize, isize, isize), isize)->isize>;
[INFO] [stdout]    |         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lattice.rs:99:27
[INFO] [stdout]    |
[INFO] [stdout] 99 | pub type PayoffFunc = Box<Fn(&Binomial, (isize, isize, isize))->f64>;
[INFO] [stdout]    |                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 99 | pub type PayoffFunc = Box<dyn Fn(&Binomial, (isize, isize, isize))->f64>;
[INFO] [stdout]    |                           +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lattice.rs:113:30
[INFO] [stdout]     |
[INFO] [stdout] 113 | pub type NodeValueFunc = Box<Fn(&Binomial, (isize, isize, isize), f64)->f64>;
[INFO] [stdout]     |                              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 113 | pub type NodeValueFunc = Box<dyn Fn(&Binomial, (isize, isize, isize), f64)->f64>;
[INFO] [stdout]     |                              +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/montecarlo.rs:58:27
[INFO] [stdout]    |
[INFO] [stdout] 58 | pub type PayoffFunc = Box<Fn(&Vec<f64>)->f64>;
[INFO] [stdout]    |                           ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 58 | pub type PayoffFunc = Box<dyn Fn(&Vec<f64>)->f64>;
[INFO] [stdout]    |                           +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lattice.rs:99:27
[INFO] [stdout]    |
[INFO] [stdout] 99 | pub type PayoffFunc = Box<Fn(&Binomial, (isize, isize, isize))->f64>;
[INFO] [stdout]    |                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 99 | pub type PayoffFunc = Box<dyn Fn(&Binomial, (isize, isize, isize))->f64>;
[INFO] [stdout]    |                           +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lattice.rs:113:30
[INFO] [stdout]     |
[INFO] [stdout] 113 | pub type NodeValueFunc = Box<Fn(&Binomial, (isize, isize, isize), f64)->f64>;
[INFO] [stdout]     |                              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 113 | pub type NodeValueFunc = Box<dyn Fn(&Binomial, (isize, isize, isize), f64)->f64>;
[INFO] [stdout]     |                              +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 13 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.41s
[INFO] running `Command { std: "docker" "inspect" "54a1abb930bec633c0a8bc316960333212dbdd82d892fb46e41c236973f4ab61", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "54a1abb930bec633c0a8bc316960333212dbdd82d892fb46e41c236973f4ab61", kill_on_drop: false }`
[INFO] [stdout] 54a1abb930bec633c0a8bc316960333212dbdd82d892fb46e41c236973f4ab61