[INFO] cloning repository https://github.com/golanor/manning_public_key_cryptography [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/golanor/manning_public_key_cryptography" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgolanor%2Fmanning_public_key_cryptography", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgolanor%2Fmanning_public_key_cryptography'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 7291ace2dbbdabd8881fab82df0f7fc222f44fc0 [INFO] checking golanor/manning_public_key_cryptography against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgolanor%2Fmanning_public_key_cryptography" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'... [INFO] [stderr] done. [INFO] started tweaking git repo https://github.com/golanor/manning_public_key_cryptography [INFO] finished tweaking git repo https://github.com/golanor/manning_public_key_cryptography [INFO] tweaked toml for git repo https://github.com/golanor/manning_public_key_cryptography written to /workspace/builds/worker-7-tc2/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/golanor/manning_public_key_cryptography on toolchain 4f260f0f20b3133d20cfb50353c0221943af5796 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate git repo https://github.com/golanor/manning_public_key_cryptography 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" "+4f260f0f20b3133d20cfb50353c0221943af5796" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 9b61dee41a3c94d50fc48db07db35ff3f0b1cc5bd873c474eccbf31809ee925a [INFO] running `Command { std: "docker" "start" "-a" "9b61dee41a3c94d50fc48db07db35ff3f0b1cc5bd873c474eccbf31809ee925a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "9b61dee41a3c94d50fc48db07db35ff3f0b1cc5bd873c474eccbf31809ee925a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "9b61dee41a3c94d50fc48db07db35ff3f0b1cc5bd873c474eccbf31809ee925a", kill_on_drop: false }` [INFO] [stdout] 9b61dee41a3c94d50fc48db07db35ff3f0b1cc5bd873c474eccbf31809ee925a [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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 -Dunmustuse_in_always_ok" "-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 417d95d4ccb21e819c51edf997d448853164099f480cb3bf96929ffed68294e2 [INFO] running `Command { std: "docker" "start" "-a" "417d95d4ccb21e819c51edf997d448853164099f480cb3bf96929ffed68294e2", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.147 [INFO] [stderr] Checking getrandom v0.2.10 [INFO] [stderr] Checking rand_core v0.6.4 [INFO] [stderr] Checking rand_chacha v0.3.1 [INFO] [stderr] Checking rand v0.8.5 [INFO] [stderr] Checking manning-public-key-cryptography v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: function `fast_exp` is never used [INFO] [stdout] --> src/main.rs:36:4 [INFO] [stdout] | [INFO] [stdout] 36 | fn fast_exp(a: u64, b: u64) -> u64 { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: constant `NUM_TESTS` is never used [INFO] [stdout] --> src/primality_testing.rs:4:11 [INFO] [stdout] | [INFO] [stdout] 4 | const NUM_TESTS: u64 = 20; [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `main` is never used [INFO] [stdout] --> src/primality_testing.rs:31:12 [INFO] [stdout] | [INFO] [stdout] 31 | pub fn main() { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `find_factors` is never used [INFO] [stdout] --> src/prime_factors.rs:5:8 [INFO] [stdout] | [INFO] [stdout] 5 | fn find_factors(mut num: u64) -> Vec { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `multiply_vector` is never used [INFO] [stdout] --> src/prime_factors.rs:22:8 [INFO] [stdout] | [INFO] [stdout] 22 | fn multiply_vector(v: Vec) -> u64 { [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `find_factors_sieve` is never used [INFO] [stdout] --> src/prime_factors.rs:26:8 [INFO] [stdout] | [INFO] [stdout] 26 | fn find_factors_sieve(mut num: u64, primes: Vec) -> Vec { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `main` is never used [INFO] [stdout] --> src/prime_factors.rs:43:12 [INFO] [stdout] | [INFO] [stdout] 43 | pub fn main() { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `sieve_of_eratosthenes` is never used [INFO] [stdout] --> src/sieve.rs:3:12 [INFO] [stdout] | [INFO] [stdout] 3 | pub fn sieve_of_eratosthenes(limit: usize) -> Vec { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `print_sieve` is never used [INFO] [stdout] --> src/sieve.rs:21:8 [INFO] [stdout] | [INFO] [stdout] 21 | fn print_sieve(sieve: &Vec) { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `sieve_to_primes` is never used [INFO] [stdout] --> src/sieve.rs:32:12 [INFO] [stdout] | [INFO] [stdout] 32 | pub fn sieve_to_primes(sieve: Vec) -> Vec { [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `print_numbers` is never used [INFO] [stdout] --> src/sieve.rs:42:12 [INFO] [stdout] | [INFO] [stdout] 42 | pub fn print_numbers(primes: &mut Vec) { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `main` is never used [INFO] [stdout] --> src/sieve.rs:49:12 [INFO] [stdout] | [INFO] [stdout] 49 | pub fn main() { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/main.rs:38:22 [INFO] [stdout] | [INFO] [stdout] 38 | let a128: u128 = a.try_into().unwrap(); [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: requested on the command line with `-D unmustuse-in-always-ok` [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `manning-public-key-cryptography` (bin "manning-public-key-cryptography" test) due to 1 previous error; 12 warnings emitted [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stdout] warning: function `fast_exp` is never used [INFO] [stdout] --> src/main.rs:36:4 [INFO] [stdout] | [INFO] [stdout] 36 | fn fast_exp(a: u64, b: u64) -> u64 { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: constant `NUM_TESTS` is never used [INFO] [stdout] --> src/primality_testing.rs:4:11 [INFO] [stdout] | [INFO] [stdout] 4 | const NUM_TESTS: u64 = 20; [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `main` is never used [INFO] [stdout] --> src/primality_testing.rs:31:12 [INFO] [stdout] | [INFO] [stdout] 31 | pub fn main() { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `find_factors` is never used [INFO] [stdout] --> src/prime_factors.rs:5:8 [INFO] [stdout] | [INFO] [stdout] 5 | fn find_factors(mut num: u64) -> Vec { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `multiply_vector` is never used [INFO] [stdout] --> src/prime_factors.rs:22:8 [INFO] [stdout] | [INFO] [stdout] 22 | fn multiply_vector(v: Vec) -> u64 { [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `find_factors_sieve` is never used [INFO] [stdout] --> src/prime_factors.rs:26:8 [INFO] [stdout] | [INFO] [stdout] 26 | fn find_factors_sieve(mut num: u64, primes: Vec) -> Vec { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `main` is never used [INFO] [stdout] --> src/prime_factors.rs:43:12 [INFO] [stdout] | [INFO] [stdout] 43 | pub fn main() { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `sieve_of_eratosthenes` is never used [INFO] [stdout] --> src/sieve.rs:3:12 [INFO] [stdout] | [INFO] [stdout] 3 | pub fn sieve_of_eratosthenes(limit: usize) -> Vec { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `print_sieve` is never used [INFO] [stdout] --> src/sieve.rs:21:8 [INFO] [stdout] | [INFO] [stdout] 21 | fn print_sieve(sieve: &Vec) { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `sieve_to_primes` is never used [INFO] [stdout] --> src/sieve.rs:32:12 [INFO] [stdout] | [INFO] [stdout] 32 | pub fn sieve_to_primes(sieve: Vec) -> Vec { [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `print_numbers` is never used [INFO] [stdout] --> src/sieve.rs:42:12 [INFO] [stdout] | [INFO] [stdout] 42 | pub fn print_numbers(primes: &mut Vec) { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `main` is never used [INFO] [stdout] --> src/sieve.rs:49:12 [INFO] [stdout] | [INFO] [stdout] 49 | pub fn main() { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/main.rs:38:22 [INFO] [stdout] | [INFO] [stdout] 38 | let a128: u128 = a.try_into().unwrap(); [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: requested on the command line with `-D unmustuse-in-always-ok` [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `manning-public-key-cryptography` (bin "manning-public-key-cryptography") due to 1 previous error; 12 warnings emitted [INFO] running `Command { std: "docker" "inspect" "417d95d4ccb21e819c51edf997d448853164099f480cb3bf96929ffed68294e2", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "417d95d4ccb21e819c51edf997d448853164099f480cb3bf96929ffed68294e2", kill_on_drop: false }` [INFO] [stdout] 417d95d4ccb21e819c51edf997d448853164099f480cb3bf96929ffed68294e2