[INFO] cloning repository https://github.com/tildedave/rust-number-theory
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/tildedave/rust-number-theory" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftildedave%2Frust-number-theory", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftildedave%2Frust-number-theory'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] fa49d472620190cc3a76d8387a8566612293de0e
[INFO] checking tildedave/rust-number-theory against master#9fa580b1175018b0a276b0bc68f9827a106f7260 for pr-82565
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftildedave%2Frust-number-theory" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/tildedave/rust-number-theory on toolchain 9fa580b1175018b0a276b0bc68f9827a106f7260
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9fa580b1175018b0a276b0bc68f9827a106f7260" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/tildedave/rust-number-theory
[INFO] finished tweaking git repo https://github.com/tildedave/rust-number-theory
[INFO] tweaked toml for git repo https://github.com/tildedave/rust-number-theory written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/tildedave/rust-number-theory already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9fa580b1175018b0a276b0bc68f9827a106f7260" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+9fa580b1175018b0a276b0bc68f9827a106f7260" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4a866a9faa9217f8f6f600a819234f528b65c0fbc8767e7cd47e2e3501854280
[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" "4a866a9faa9217f8f6f600a819234f528b65c0fbc8767e7cd47e2e3501854280", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4a866a9faa9217f8f6f600a819234f528b65c0fbc8767e7cd47e2e3501854280", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4a866a9faa9217f8f6f600a819234f528b65c0fbc8767e7cd47e2e3501854280", kill_on_drop: false }`
[INFO] [stdout] 4a866a9faa9217f8f6f600a819234f528b65c0fbc8767e7cd47e2e3501854280
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+9fa580b1175018b0a276b0bc68f9827a106f7260" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 070db57d0e8b0c0f450f362ee384f5c5d5aad00bf6d88e3b7f19c14f1b01710d
[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" "070db57d0e8b0c0f450f362ee384f5c5d5aad00bf6d88e3b7f19c14f1b01710d", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.2.8
[INFO] [stderr]    Compiling num-complex v0.2.3
[INFO] [stderr]    Compiling num-rational v0.2.2
[INFO] [stderr]    Compiling num-iter v0.1.39
[INFO] [stderr]     Checking num-integer v0.1.41
[INFO] [stderr]     Checking num-bigint v0.2.2
[INFO] [stderr]     Checking num v0.2.0
[INFO] [stderr]     Checking rust-number-theory v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function is never used: `leftmost_bit`
[INFO] [stdout]   --> chap1.rs:11:4
[INFO] [stdout]    |
[INFO] [stdout] 11 | fn leftmost_bit<T>(g: T) -> T
[INFO] [stdout]    |    ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `prime_factor`
[INFO] [stdout]   --> chap1.rs:27:4
[INFO] [stdout]    |
[INFO] [stdout] 27 | fn prime_factor(n: i32) -> Vec<i32> {
[INFO] [stdout]    |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `mod_exp`
[INFO] [stdout]   --> chap1.rs:47:4
[INFO] [stdout]    |
[INFO] [stdout] 47 | fn mod_exp(g: i32, n: i32, p: i32) -> i32 {
[INFO] [stdout]    |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `mod_exp2`
[INFO] [stdout]   --> chap1.rs:73:4
[INFO] [stdout]    |
[INFO] [stdout] 73 | fn mod_exp2(g: i32, n: i32, p: i32) -> i32 {
[INFO] [stdout]    |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `mod_inverse`
[INFO] [stdout]    --> chap1.rs:101:4
[INFO] [stdout]     |
[INFO] [stdout] 101 | fn mod_inverse(m: i32, p: i32) -> i32 {
[INFO] [stdout]     |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `gcd`
[INFO] [stdout]    --> chap1.rs:107:4
[INFO] [stdout]     |
[INFO] [stdout] 107 | fn gcd<T>(a: T, b: T) -> T
[INFO] [stdout]     |    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `gcd_binary`
[INFO] [stdout]    --> chap1.rs:119:4
[INFO] [stdout]     |
[INFO] [stdout] 119 | fn gcd_binary(a: i32, b: i32) -> i32 {
[INFO] [stdout]     |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `gcd_extended`
[INFO] [stdout]    --> chap1.rs:170:4
[INFO] [stdout]     |
[INFO] [stdout] 170 | fn gcd_extended<T>(a: T, b: T) -> (T, T, T)
[INFO] [stdout]     |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `chinese_remainder`
[INFO] [stdout]    --> chap1.rs:201:4
[INFO] [stdout]     |
[INFO] [stdout] 201 | fn chinese_remainder<T>(m_list: Vec<T>, xi_list: Vec<T>) -> T
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `isqrt`
[INFO] [stdout]    --> chap1.rs:229:4
[INFO] [stdout]     |
[INFO] [stdout] 229 | fn isqrt(n: i32) -> i32 {
[INFO] [stdout]     |    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `kroneker_table`
[INFO] [stdout]    --> chap1.rs:241:1
[INFO] [stdout]     |
[INFO] [stdout] 241 | const kroneker_table: [i32; 8] = [0, 1, 0 , -1, 0, -1, 0, 1];
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `kroneker_symbol`
[INFO] [stdout]    --> chap1.rs:244:4
[INFO] [stdout]     |
[INFO] [stdout] 244 | fn kroneker_symbol(a: i32, b: i32) -> i32 {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `kroneker_table` should have an upper case name
[INFO] [stdout]    --> chap1.rs:241:7
[INFO] [stdout]     |
[INFO] [stdout] 241 | const kroneker_table: [i32; 8] = [0, 1, 0 , -1, 0, -1, 0, 1];
[INFO] [stdout]     |       ^^^^^^^^^^^^^^ help: convert the identifier to upper case: `KRONEKER_TABLE`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_upper_case_globals)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 13 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `kroneker_table` should have an upper case name
[INFO] [stdout]    --> chap1.rs:241:7
[INFO] [stdout]     |
[INFO] [stdout] 241 | const kroneker_table: [i32; 8] = [0, 1, 0 , -1, 0, -1, 0, 1];
[INFO] [stdout]     |       ^^^^^^^^^^^^^^ help: convert the identifier to upper case: `KRONEKER_TABLE`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_upper_case_globals)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.94s
[INFO] running `Command { std: "docker" "inspect" "070db57d0e8b0c0f450f362ee384f5c5d5aad00bf6d88e3b7f19c14f1b01710d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "070db57d0e8b0c0f450f362ee384f5c5d5aad00bf6d88e3b7f19c14f1b01710d", kill_on_drop: false }`
[INFO] [stdout] 070db57d0e8b0c0f450f362ee384f5c5d5aad00bf6d88e3b7f19c14f1b01710d