[INFO] crate spritz_cipher 0.1.0 is already in cache
[INFO] checking spritz_cipher-0.1.0 against master#fdc0011561c6365c596dfd8fa1ef388162bc89c7 for pr-66852
[INFO] extracting crate spritz_cipher 0.1.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate spritz_cipher 0.1.0 on toolchain fdc0011561c6365c596dfd8fa1ef388162bc89c7
[INFO] running `"/workspace/cargo-home/bin/cargo" "+fdc0011561c6365c596dfd8fa1ef388162bc89c7" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate spritz_cipher 0.1.0
[INFO] finished tweaking crates.io crate spritz_cipher 0.1.0
[INFO] tweaked toml for crates.io crate spritz_cipher 0.1.0 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate crates.io crate spritz_cipher 0.1.0 already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+fdc0011561c6365c596dfd8fa1ef388162bc89c7" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+fdc0011561c6365c596dfd8fa1ef388162bc89c7" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 43dbab359910bb92e4f8d32da82da9c2fc2e0e6ae19a4741712b396672ed9f16
[INFO] running `"docker" "start" "-a" "43dbab359910bb92e4f8d32da82da9c2fc2e0e6ae19a4741712b396672ed9f16"`
[INFO] [stderr]    Compiling spritz_cipher v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling proc-macro2 v1.0.5
[INFO] [stderr]     Checking statistical v1.0.0
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]    Compiling syn v1.0.5
[INFO] [stderr]    Compiling synstructure v0.12.1
[INFO] [stderr]    Compiling zeroize_derive v1.0.0
[INFO] [stderr]     Checking zeroize v1.0.0
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> tests/basic.rs:25:9
[INFO] [stderr]    |
[INFO] [stderr] 25 |         context.crypt(&msg, &mut buf);
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> tests/basic.rs:30:9
[INFO] [stderr]    |
[INFO] [stderr] 30 |         context.crypt(&buf2, &mut buf);
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `mac_2`
[INFO] [stderr]   --> tests/c_check.rs:36:21
[INFO] [stderr]    |
[INFO] [stderr] 36 |             let mut mac_2 = [0 as u8;DIGEST_SIZE]; /* Output buffer */
[INFO] [stderr]    |                     ^^^^^ help: consider prefixing with an underscore: `_mac_2`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> tests/c_check.rs:36:17
[INFO] [stderr]    |
[INFO] [stderr] 36 |             let mut mac_2 = [0 as u8;DIGEST_SIZE]; /* Output buffer */
[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] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> examples/rand_check.rs:27:13
[INFO] [stderr]    |
[INFO] [stderr] 27 |             context.crypt(&msg, &mut buf);
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> examples/rand_check.rs:32:13
[INFO] [stderr]    |
[INFO] [stderr] 32 |             context.crypt(&buf2, &mut buf);
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 20.95s
[INFO] running `"docker" "inspect" "43dbab359910bb92e4f8d32da82da9c2fc2e0e6ae19a4741712b396672ed9f16"`
[INFO] running `"docker" "rm" "-f" "43dbab359910bb92e4f8d32da82da9c2fc2e0e6ae19a4741712b396672ed9f16"`
[INFO] [stdout] 43dbab359910bb92e4f8d32da82da9c2fc2e0e6ae19a4741712b396672ed9f16