[INFO] fetching crate nrfind 1.0.3...
[INFO] checking nrfind-1.0.3 against beta-2020-07-24 for pr-75494-beta
[INFO] extracting crate nrfind 1.0.3 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate nrfind 1.0.3 on toolchain beta-2020-07-24
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate nrfind 1.0.3
[INFO] finished tweaking crates.io crate nrfind 1.0.3
[INFO] tweaked toml for crates.io crate nrfind 1.0.3 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate crates.io crate nrfind 1.0.3 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d88fddab76faef8791bfc167b638bbd90a29ea4dddb578f3fd7b1d34d2a3bd27
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "d88fddab76faef8791bfc167b638bbd90a29ea4dddb578f3fd7b1d34d2a3bd27", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d88fddab76faef8791bfc167b638bbd90a29ea4dddb578f3fd7b1d34d2a3bd27", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d88fddab76faef8791bfc167b638bbd90a29ea4dddb578f3fd7b1d34d2a3bd27", kill_on_drop: false }`
[INFO] [stdout] d88fddab76faef8791bfc167b638bbd90a29ea4dddb578f3fd7b1d34d2a3bd27
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 35d6ec12b6cbeec5aa798f27f28a8625e27f03abf5fb6ffea6efef3fce182fa8
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "35d6ec12b6cbeec5aa798f27f28a8625e27f03abf5fb6ffea6efef3fce182fa8", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-bigint v0.2.3
[INFO] [stderr]    Compiling num-iter v0.1.39
[INFO] [stderr]    Compiling num-complex v0.2.3
[INFO] [stderr]    Compiling num-rational v0.2.2
[INFO] [stderr]     Checking num v0.2.0
[INFO] [stderr]     Checking nrfind v1.0.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lib.rs:71:32
[INFO] [stdout]    |
[INFO] [stdout] 71 | pub fn find_root<N>(function: &Fn(N) -> N, derivative: &Fn(N) -> N, x0: N, acceptable_err: N, max_iterations: i32) -> NumericSolutionResu...
[INFO] [stdout]    |                                ^^^^^^^^^^ help: use `dyn`: `dyn Fn(N) -> N`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lib.rs:71:57
[INFO] [stdout]    |
[INFO] [stdout] 71 | pub fn find_root<N>(function: &Fn(N) -> N, derivative: &Fn(N) -> N, x0: N, acceptable_err: N, max_iterations: i32) -> NumericSolutionResu...
[INFO] [stdout]    |                                                         ^^^^^^^^^^ help: use `dyn`: `dyn Fn(N) -> N`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: bounds on generic parameters are not enforced in type aliases
[INFO] [stdout]   --> src/lib.rs:30:35
[INFO] [stdout]    |
[INFO] [stdout] 30 | pub type NumericSolutionResult<T: Float + Div + Sub + PartialOrd> = Result<T, T>;
[INFO] [stdout]    |                                   ^^^^^   ^^^   ^^^   ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(type_alias_bounds)]` on by default
[INFO] [stdout] help: the bound will not be checked when the type alias is used, and should be removed
[INFO] [stdout]    |
[INFO] [stdout] 30 | pub type NumericSolutionResult<T> = Result<T, T>;
[INFO] [stdout]    |                                --
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lib.rs:71:32
[INFO] [stdout]    |
[INFO] [stdout] 71 | pub fn find_root<N>(function: &Fn(N) -> N, derivative: &Fn(N) -> N, x0: N, acceptable_err: N, max_iterations: i32) -> NumericSolutionResu...
[INFO] [stdout]    |                                ^^^^^^^^^^ help: use `dyn`: `dyn Fn(N) -> N`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lib.rs:71:57
[INFO] [stdout]    |
[INFO] [stdout] 71 | pub fn find_root<N>(function: &Fn(N) -> N, derivative: &Fn(N) -> N, x0: N, acceptable_err: N, max_iterations: i32) -> NumericSolutionResu...
[INFO] [stdout]    |                                                         ^^^^^^^^^^ help: use `dyn`: `dyn Fn(N) -> N`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: bounds on generic parameters are not enforced in type aliases
[INFO] [stdout]   --> src/lib.rs:30:35
[INFO] [stdout]    |
[INFO] [stdout] 30 | pub type NumericSolutionResult<T: Float + Div + Sub + PartialOrd> = Result<T, T>;
[INFO] [stdout]    |                                   ^^^^^   ^^^   ^^^   ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(type_alias_bounds)]` on by default
[INFO] [stdout] help: the bound will not be checked when the type alias is used, and should be removed
[INFO] [stdout]    |
[INFO] [stdout] 30 | pub type NumericSolutionResult<T> = Result<T, T>;
[INFO] [stdout]    |                                --
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.60s
[INFO] running `Command { std: "docker" "inspect" "35d6ec12b6cbeec5aa798f27f28a8625e27f03abf5fb6ffea6efef3fce182fa8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "35d6ec12b6cbeec5aa798f27f28a8625e27f03abf5fb6ffea6efef3fce182fa8", kill_on_drop: false }`
[INFO] [stdout] 35d6ec12b6cbeec5aa798f27f28a8625e27f03abf5fb6ffea6efef3fce182fa8
