[INFO] fetching crate xdlol 0.0.0...
[INFO] testing xdlol-0.0.0 against 1.55.0 for beta-1.56-1
[INFO] extracting crate xdlol 0.0.0 into /workspace/builds/worker-9/source
[INFO] validating manifest of crates.io crate xdlol 0.0.0 on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate xdlol 0.0.0
[INFO] finished tweaking crates.io crate xdlol 0.0.0
[INFO] tweaked toml for crates.io crate xdlol 0.0.0 written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded cargo_metadata v0.2.3
[INFO] [stderr]   Downloaded semver v0.6.0
[INFO] [stderr]   Downloaded if_chain v0.1.3
[INFO] [stderr]   Downloaded pulldown-cmark v0.0.15
[INFO] [stderr]   Downloaded statrs v0.9.0
[INFO] [stderr]   Downloaded clippy_lints v0.0.169
[INFO] [stderr]   Downloaded clippy v0.0.169
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", 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] 170c4e52edd4c4c0dc0ea93282cb465f97f57d049d4f6d3bae3a2cd134ef08de
[INFO] running `Command { std: "docker" "start" "-a" "170c4e52edd4c4c0dc0ea93282cb465f97f57d049d4f6d3bae3a2cd134ef08de", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "170c4e52edd4c4c0dc0ea93282cb465f97f57d049d4f6d3bae3a2cd134ef08de", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "170c4e52edd4c4c0dc0ea93282cb465f97f57d049d4f6d3bae3a2cd134ef08de", kill_on_drop: false }`
[INFO] [stdout] 170c4e52edd4c4c0dc0ea93282cb465f97f57d049d4f6d3bae3a2cd134ef08de
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--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] fb50f210d71bc0ecb1a79e2cbf70cd5fb8b69fd53196951cf69c02641e7d725f
[INFO] running `Command { std: "docker" "start" "-a" "fb50f210d71bc0ecb1a79e2cbf70cd5fb8b69fd53196951cf69c02641e7d725f", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling num-complex v0.1.43
[INFO] [stderr]    Compiling statrs v0.9.0
[INFO] [stderr]    Compiling num-bigint v0.1.44
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]    Compiling num-rational v0.1.42
[INFO] [stderr]    Compiling num v0.1.42
[INFO] [stderr]    Compiling xdlol v0.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function is never used: `p_value`
[INFO] [stdout]    --> src/statistics/chi_square.rs:112:8
[INFO] [stdout]     |
[INFO] [stdout] 112 | pub fn p_value(dof: u64, critical_value: f64) -> f64 {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `K` should have a snake case name
[INFO] [stdout]    --> src/statistics/chi_square.rs:116:9
[INFO] [stdout]     |
[INFO] [stdout] 116 |     let K: f64 = dof as f64 * 0.5;
[INFO] [stdout]     |         ^ help: convert the identifier to snake case (notice the capitalization): `k`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `X` should have a snake case name
[INFO] [stdout]    --> src/statistics/chi_square.rs:117:9
[INFO] [stdout]     |
[INFO] [stdout] 117 |     let X: f64 = critical_value * 0.5;
[INFO] [stdout]     |         ^ help: convert the identifier to snake case (notice the capitalization): `x`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.78s
[INFO] running `Command { std: "docker" "inspect" "fb50f210d71bc0ecb1a79e2cbf70cd5fb8b69fd53196951cf69c02641e7d725f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fb50f210d71bc0ecb1a79e2cbf70cd5fb8b69fd53196951cf69c02641e7d725f", kill_on_drop: false }`
[INFO] [stdout] fb50f210d71bc0ecb1a79e2cbf70cd5fb8b69fd53196951cf69c02641e7d725f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e4ec4a44c8e44f69a29b98ef2214b78de9a032ef457c036a72a410e9f6c4081a
[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" "e4ec4a44c8e44f69a29b98ef2214b78de9a032ef457c036a72a410e9f6c4081a", kill_on_drop: false }`
[INFO] [stderr]    Compiling float-cmp v0.4.0
[INFO] [stdout] warning: function is never used: `p_value`
[INFO] [stdout]    --> src/statistics/chi_square.rs:112:8
[INFO] [stdout]     |
[INFO] [stdout] 112 | pub fn p_value(dof: u64, critical_value: f64) -> f64 {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `K` should have a snake case name
[INFO] [stdout]    --> src/statistics/chi_square.rs:116:9
[INFO] [stdout]     |
[INFO] [stdout] 116 |     let K: f64 = dof as f64 * 0.5;
[INFO] [stdout]     |         ^ help: convert the identifier to snake case (notice the capitalization): `k`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `X` should have a snake case name
[INFO] [stdout]    --> src/statistics/chi_square.rs:117:9
[INFO] [stdout]     |
[INFO] [stdout] 117 |     let X: f64 = critical_value * 0.5;
[INFO] [stdout]     |         ^ help: convert the identifier to snake case (notice the capitalization): `x`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling xdlol v0.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable `K` should have a snake case name
[INFO] [stdout]    --> src/statistics/chi_square.rs:116:9
[INFO] [stdout]     |
[INFO] [stdout] 116 |     let K: f64 = dof as f64 * 0.5;
[INFO] [stdout]     |         ^ help: convert the identifier to snake case (notice the capitalization): `k`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `X` should have a snake case name
[INFO] [stdout]    --> src/statistics/chi_square.rs:117:9
[INFO] [stdout]     |
[INFO] [stdout] 117 |     let X: f64 = critical_value * 0.5;
[INFO] [stdout]     |         ^ help: convert the identifier to snake case (notice the capitalization): `x`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 4.34s
[INFO] running `Command { std: "docker" "inspect" "e4ec4a44c8e44f69a29b98ef2214b78de9a032ef457c036a72a410e9f6c4081a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e4ec4a44c8e44f69a29b98ef2214b78de9a032ef457c036a72a410e9f6c4081a", kill_on_drop: false }`
[INFO] [stdout] e4ec4a44c8e44f69a29b98ef2214b78de9a032ef457c036a72a410e9f6c4081a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 2bf0fc9e94cdb811be33dd2a42d5b5d23e0aa37813d16f00e3d411b627e98d7d
[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" "2bf0fc9e94cdb811be33dd2a42d5b5d23e0aa37813d16f00e3d411b627e98d7d", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr] warning: function is never used: `p_value`
[INFO] [stdout] running 17 tests
[INFO] [stderr]    --> src/statistics/chi_square.rs:112:8
[INFO] [stdout] test statistics::chi_square::tests::chi_square_test_failure_element_frequency_too_small ... ok
[INFO] [stderr]     |
[INFO] [stdout] test statistics::chi_square::tests::p_value_basic ... ok
[INFO] [stderr] 112 | pub fn p_value(dof: u64, critical_value: f64) -> f64 {
[INFO] [stdout] test statistics::chi_square::tests::p_value_against_scipy ... ok
[INFO] [stderr]     |        ^^^^^^^
[INFO] [stdout] test statistics::chi_square::tests::test_chi_square ... ok
[INFO] [stderr]     |
[INFO] [stdout] test statistics::chi_square::tests::chi_square_test_failure_sample_size_too_small ... ok
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] test statistics::chi_square::tests::chi_square_test_failure_element_zero_frequency ... ok
[INFO] [stderr] 
[INFO] [stdout] test statistics::chi_square::tests::chi_square_test_pass ... ok
[INFO] [stderr] warning: variable `K` should have a snake case name
[INFO] [stdout] test statistics::tests::test_normalize_simple ... ok
[INFO] [stderr]    --> src/statistics/chi_square.rs:116:9
[INFO] [stdout] test statistics::tests::test_normalize_simple_offset ... ok
[INFO] [stderr]     |
[INFO] [stderr] 116 |     let K: f64 = dof as f64 * 0.5;
[INFO] [stderr]     |         ^ help: convert the identifier to snake case (notice the capitalization): `k`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable `X` should have a snake case name
[INFO] [stderr]    --> src/statistics/chi_square.rs:117:9
[INFO] [stderr]     |
[INFO] [stderr] 117 |     let X: f64 = critical_value * 0.5;
[INFO] [stderr]     |         ^ help: convert the identifier to snake case (notice the capitalization): `x`
[INFO] [stderr] 
[INFO] [stderr] warning: `xdlol` (lib) generated 3 warnings
[INFO] [stderr] warning: `xdlol` (lib test) generated 2 warnings (2 duplicates)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/xdlol-b436df49d0c7fd61)
[INFO] [stdout] test statistics::chi_square::tests::test_chi_square_large_dataset ... ok
[INFO] [stdout] test statistics::frequency::tests::frequency_map_from_iter_get ... ok
[INFO] [stdout] test statistics::frequency::tests::frequency_map_insert_return ... ok
[INFO] [stdout] test statistics::tests::test_histogram ... ok
[INFO] [stdout] test statistics::frequency::tests::frequency_map_insert_get ... ok
[INFO] [stdout] test statistics::tests::test_normalize_value_out_of_range_low - should panic ... ok
[INFO] [stdout] test statistics::tests::test_normalize_value_out_of_range_high - should panic ... ok
[INFO] [stdout] test statistics::tests::test_normalize_divide_by_zero - should panic ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 17 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.04s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests xdlol
[INFO] [stdout] 
[INFO] [stdout] running 8 tests
[INFO] [stdout] test src/statistics/mod.rs - statistics::histogram (line 25) ... ok
[INFO] [stdout] test src/statistics/frequency.rs - statistics::frequency::FrequencyMap<K, V>::insert (line 102) ... ok
[INFO] [stdout] test src/statistics/frequency.rs - statistics::frequency::FrequencyMap<K, V>::with_capacity (line 55) ... ok
[INFO] [stdout] test src/statistics/frequency.rs - statistics::frequency::FrequencyMap<K, V>::new (line 36) ... ok
[INFO] [stdout] test src/statistics/frequency.rs - statistics::frequency::FrequencyMap<K, V>::get (line 75) ... ok
[INFO] [stdout] test src/statistics/chi_square.rs - statistics::chi_square::chi_square_test (line 22) ... ok
[INFO] [stdout] test src/statistics/frequency.rs - statistics::frequency::FrequencyMap<K, V>::values (line 120) ... ok
[INFO] [stdout] test src/statistics/chi_square.rs - statistics::chi_square::chi_square (line 65) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 8 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 4.19s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "2bf0fc9e94cdb811be33dd2a42d5b5d23e0aa37813d16f00e3d411b627e98d7d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2bf0fc9e94cdb811be33dd2a42d5b5d23e0aa37813d16f00e3d411b627e98d7d", kill_on_drop: false }`
[INFO] [stdout] 2bf0fc9e94cdb811be33dd2a42d5b5d23e0aa37813d16f00e3d411b627e98d7d