[INFO] fetching crate nrfind 1.0.3...
[INFO] testing nrfind-1.0.3 against 1.47.0 for beta-1.48-1
[INFO] extracting crate nrfind 1.0.3 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate nrfind 1.0.3 on toolchain 1.47.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "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-5/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" "+1.47.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6cd17860da7cc39e300b0aaf3a5d71426705fa7c60e87c4a917b396cd1c4334d
[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" "6cd17860da7cc39e300b0aaf3a5d71426705fa7c60e87c4a917b396cd1c4334d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6cd17860da7cc39e300b0aaf3a5d71426705fa7c60e87c4a917b396cd1c4334d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6cd17860da7cc39e300b0aaf3a5d71426705fa7c60e87c4a917b396cd1c4334d", kill_on_drop: false }`
[INFO] [stdout] 6cd17860da7cc39e300b0aaf3a5d71426705fa7c60e87c4a917b396cd1c4334d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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=warn" "-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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5db51dbf8d06d0c05a1a9558b6b11e39f70268970a908d5586356cc89a9d0124
[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" "5db51dbf8d06d0c05a1a9558b6b11e39f70268970a908d5586356cc89a9d0124", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling num-traits v0.2.8
[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]    Compiling num-integer v0.1.41
[INFO] [stderr]    Compiling num v0.2.0
[INFO] [stderr]    Compiling 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: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.61s
[INFO] running `Command { std: "docker" "inspect" "5db51dbf8d06d0c05a1a9558b6b11e39f70268970a908d5586356cc89a9d0124", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5db51dbf8d06d0c05a1a9558b6b11e39f70268970a908d5586356cc89a9d0124", kill_on_drop: false }`
[INFO] [stdout] 5db51dbf8d06d0c05a1a9558b6b11e39f70268970a908d5586356cc89a9d0124
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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=warn" "-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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] ec5b5474928577d5d707504c6cccfbb8009a619b66250ff850afd2222ded1afd
[INFO] running `Command { std: "docker" "start" "-a" "ec5b5474928577d5d707504c6cccfbb8009a619b66250ff850afd2222ded1afd", kill_on_drop: false }`
[INFO] [stderr]    Compiling 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: 3 warnings emitted
[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: 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 test [unoptimized + debuginfo] target(s) in 1.01s
[INFO] running `Command { std: "docker" "inspect" "ec5b5474928577d5d707504c6cccfbb8009a619b66250ff850afd2222ded1afd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ec5b5474928577d5d707504c6cccfbb8009a619b66250ff850afd2222ded1afd", kill_on_drop: false }`
[INFO] [stdout] ec5b5474928577d5d707504c6cccfbb8009a619b66250ff850afd2222ded1afd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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=warn" "-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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 4496989772edd2f28f308c26184d93be9dcf4712d2150252a52f9ec9131ab170
[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" "4496989772edd2f28f308c26184d93be9dcf4712d2150252a52f9ec9131ab170", kill_on_drop: false }`
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lib.rs:71:32
[INFO] [stderr]    |
[INFO] [stderr] 71 | pub fn find_root<N>(function: &Fn(N) -> N, derivative: &Fn(N) -> N, x0: N, acceptable_err: N, max_iterations: i32) -> NumericSolutionResu...
[INFO] [stderr]    |                                ^^^^^^^^^^ help: use `dyn`: `dyn Fn(N) -> N`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lib.rs:71:57
[INFO] [stderr]    |
[INFO] [stderr] 71 | pub fn find_root<N>(function: &Fn(N) -> N, derivative: &Fn(N) -> N, x0: N, acceptable_err: N, max_iterations: i32) -> NumericSolutionResu...
[INFO] [stderr]    |                                                         ^^^^^^^^^^ help: use `dyn`: `dyn Fn(N) -> N`
[INFO] [stderr] 
[INFO] [stderr] warning: bounds on generic parameters are not enforced in type aliases
[INFO] [stderr]   --> src/lib.rs:30:35
[INFO] [stderr]    |
[INFO] [stderr] 30 | pub type NumericSolutionResult<T: Float + Div + Sub + PartialOrd> = Result<T, T>;
[INFO] [stderr]    |                                   ^^^^^   ^^^   ^^^   ^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(type_alias_bounds)]` on by default
[INFO] [stderr] help: the bound will not be checked when the type alias is used, and should be removed
[INFO] [stderr]    |
[INFO] [stderr] 30 | pub type NumericSolutionResult<T> = Result<T, T>;
[INFO] [stderr]    |                                --
[INFO] [stderr] 
[INFO] [stderr] warning: 3 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lib.rs:71:32
[INFO] [stderr]    |
[INFO] [stderr] 71 | pub fn find_root<N>(function: &Fn(N) -> N, derivative: &Fn(N) -> N, x0: N, acceptable_err: N, max_iterations: i32) -> NumericSolutionResu...
[INFO] [stderr]    |                                ^^^^^^^^^^ help: use `dyn`: `dyn Fn(N) -> N`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lib.rs:71:57
[INFO] [stderr]    |
[INFO] [stderr] 71 | pub fn find_root<N>(function: &Fn(N) -> N, derivative: &Fn(N) -> N, x0: N, acceptable_err: N, max_iterations: i32) -> NumericSolutionResu...
[INFO] [stderr]    |                                                         ^^^^^^^^^^ help: use `dyn`: `dyn Fn(N) -> N`
[INFO] [stderr] 
[INFO] [stderr] warning: bounds on generic parameters are not enforced in type aliases
[INFO] [stderr]   --> src/lib.rs:30:35
[INFO] [stderr]    |
[INFO] [stderr] 30 | pub type NumericSolutionResult<T: Float + Div + Sub + PartialOrd> = Result<T, T>;
[INFO] [stderr]    |                                   ^^^^^   ^^^   ^^^   ^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(type_alias_bounds)]` on by default
[INFO] [stderr] help: the bound will not be checked when the type alias is used, and should be removed
[INFO] [stderr]    |
[INFO] [stderr] 30 | pub type NumericSolutionResult<T> = Result<T, T>;
[INFO] [stderr]    |                                --
[INFO] [stderr] 
[INFO] [stderr] warning: 3 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/nrfind-ca211d4ff1647535
[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
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/test_root-ec24538faa54a1d8
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test test_find_root_finds_result_to_precision ... ok
[INFO] [stdout] test test_find_root_fails_with_precision ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/test_sqrt-83ce7f9c0a4a76cb
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stderr]    Doc-tests nrfind
[INFO] [stdout] test test_find_sqrt_fails_when_out_of_iterations ... ok
[INFO] [stdout] test test_find_sqrt_finds_result_to_precision ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test src/lib.rs - (line 10) ... ok
[INFO] [stdout] test src/sqrt.rs - sqrt::find_sqrt (line 12) ... ok
[INFO] [stdout] test src/lib.rs - find_root (line 46) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "4496989772edd2f28f308c26184d93be9dcf4712d2150252a52f9ec9131ab170", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4496989772edd2f28f308c26184d93be9dcf4712d2150252a52f9ec9131ab170", kill_on_drop: false }`
[INFO] [stdout] 4496989772edd2f28f308c26184d93be9dcf4712d2150252a52f9ec9131ab170
