[INFO] updating cached repository https://github.com/dusty-phillips/rust-rsa
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/big/crater/work/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 4e717b77994d8db55a07bd7ebd02a86d7b6d1afa
[INFO] testing dusty-phillips/rust-rsa against beta-2019-09-28 for beta-1.39-1
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdusty-phillips%2Frust-rsa" "work/builds/worker-7/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/dusty-phillips/rust-rsa on toolchain beta-2019-09-28
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/dusty-phillips/rust-rsa
[INFO] finished tweaking git repo https://github.com/dusty-phillips/rust-rsa
[INFO] tweaked toml for git repo https://github.com/dusty-phillips/rust-rsa written to work/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/dusty-phillips/rust-rsa already has a lockfile, it will not be regenerated
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-7/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2019-09-28" "build" "--frozen"`
[INFO] [stdout] 4b9c0ffbc985c8a51590e4f1e21f21122cdacf665b0ac9deec8d1b42f45b0f52
[INFO] running `"docker" "start" "-a" "4b9c0ffbc985c8a51590e4f1e21f21122cdacf665b0ac9deec8d1b42f45b0f52"`
[INFO] [stderr]    Compiling num-bigint v0.2.0
[INFO] [stderr]    Compiling rsa_rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/lib.rs:53:17
[INFO] [stderr]    |
[INFO] [stderr] 53 |             let mut witness = rng.gen_biguint_range(two, number);
[INFO] [stderr]    |                 ----^^^^^^^
[INFO] [stderr]    |                 |
[INFO] [stderr]    |                 help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.95s
[INFO] running `"docker" "inspect" "4b9c0ffbc985c8a51590e4f1e21f21122cdacf665b0ac9deec8d1b42f45b0f52"`
[INFO] running `"docker" "rm" "-f" "4b9c0ffbc985c8a51590e4f1e21f21122cdacf665b0ac9deec8d1b42f45b0f52"`
[INFO] [stdout] 4b9c0ffbc985c8a51590e4f1e21f21122cdacf665b0ac9deec8d1b42f45b0f52
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-7/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2019-09-28" "test" "--frozen" "--no-run"`
[INFO] [stdout] 135fd443e55a69b745b95c831b0fb490e01d8df9516bcc4193e927abd59c61b6
[INFO] running `"docker" "start" "-a" "135fd443e55a69b745b95c831b0fb490e01d8df9516bcc4193e927abd59c61b6"`
[INFO] [stderr]    Compiling rsa_rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/lib.rs:53:17
[INFO] [stderr]    |
[INFO] [stderr] 53 |             let mut witness = rng.gen_biguint_range(two, number);
[INFO] [stderr]    |                 ----^^^^^^^
[INFO] [stderr]    |                 |
[INFO] [stderr]    |                 help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.58s
[INFO] running `"docker" "inspect" "135fd443e55a69b745b95c831b0fb490e01d8df9516bcc4193e927abd59c61b6"`
[INFO] running `"docker" "rm" "-f" "135fd443e55a69b745b95c831b0fb490e01d8df9516bcc4193e927abd59c61b6"`
[INFO] [stdout] 135fd443e55a69b745b95c831b0fb490e01d8df9516bcc4193e927abd59c61b6
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-7/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2019-09-28" "test" "--frozen"`
[INFO] [stdout] b3c25b0261619bdf79e493d8195c05470c9e00f21faf9079d3b15f6b967589ff
[INFO] running `"docker" "start" "-a" "b3c25b0261619bdf79e493d8195c05470c9e00f21faf9079d3b15f6b967589ff"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/rsa_rust-6dcbc7155ca5ccd7
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test math::tests::modular_inverse ... ok
[INFO] [stdout] test math::tests::first_primes ... ok
[INFO] [stdout] test math::tests::large_prime ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/main-679a701c5b730994
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test tests::rsa_round_trip ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests rsa_rust
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - math::mod_inverse (line 73) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "b3c25b0261619bdf79e493d8195c05470c9e00f21faf9079d3b15f6b967589ff"`
[INFO] running `"docker" "rm" "-f" "b3c25b0261619bdf79e493d8195c05470c9e00f21faf9079d3b15f6b967589ff"`
[INFO] [stdout] b3c25b0261619bdf79e493d8195c05470c9e00f21faf9079d3b15f6b967589ff