[INFO] fetching crate spritz_cipher 0.1.0...
[INFO] checking spritz_cipher-0.1.0 against try#dcc22e5232dd0dbe95a4b3ab84c8d24a0880771e for pr-153721
[INFO] extracting crate spritz_cipher 0.1.0 into /workspace/builds/worker-0-tc2/source
[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-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate spritz_cipher 0.1.0 on toolchain dcc22e5232dd0dbe95a4b3ab84c8d24a0880771e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+dcc22e5232dd0dbe95a4b3ab84c8d24a0880771e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate spritz_cipher 0.1.0 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" "+dcc22e5232dd0dbe95a4b3ab84c8d24a0880771e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:3e793bdf10248eb2ddbd6b0faebed8155c11b4589982e2893733958d93e8d540" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 443c3a8b191ff6eb8c56b7fb88c6420209b03c30bfbcabd3e4ae7532455bf706
[INFO] running `Command { std: "docker" "start" "443c3a8b191ff6eb8c56b7fb88c6420209b03c30bfbcabd3e4ae7532455bf706", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "443c3a8b191ff6eb8c56b7fb88c6420209b03c30bfbcabd3e4ae7532455bf706" "/opt/rustwide/cargo-home/bin/cargo" "+dcc22e5232dd0dbe95a4b3ab84c8d24a0880771e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "443c3a8b191ff6eb8c56b7fb88c6420209b03c30bfbcabd3e4ae7532455bf706", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-w" "/opt/rustwide/workdir" "--user" "0:0" "443c3a8b191ff6eb8c56b7fb88c6420209b03c30bfbcabd3e4ae7532455bf706" "/opt/rustwide/cargo-home/bin/cargo" "+dcc22e5232dd0dbe95a4b3ab84c8d24a0880771e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v0.1.6
[INFO] [stderr]     Checking rand_core v0.4.2
[INFO] [stderr]    Compiling libc v0.2.62
[INFO] [stderr]    Compiling proc-macro2 v1.0.5
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling syn v1.0.5
[INFO] [stderr]    Compiling getrandom v0.1.12
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking ppv-lite86 v0.2.5
[INFO] [stderr]    Compiling cc v1.0.45
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]     Checking rand_jitter v0.1.4
[INFO] [stderr]     Checking rand_xorshift v0.1.1
[INFO] [stderr]     Checking rand_hc v0.1.0
[INFO] [stderr]     Checking rand_isaac v0.1.1
[INFO] [stderr]    Compiling num-traits v0.2.8
[INFO] [stderr]    Compiling num-integer v0.1.41
[INFO] [stderr]    Compiling num-bigint v0.2.3
[INFO] [stderr]    Compiling num-rational v0.2.2
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling num-iter v0.1.39
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]    Compiling num-complex v0.2.3
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking c2-chacha v0.2.2
[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stderr]     Checking rand_chacha v0.2.1
[INFO] [stderr]    Compiling spritz_cipher v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking rand v0.7.2
[INFO] [stderr]     Checking num v0.2.0
[INFO] [stderr]     Checking statistical v1.0.0
[INFO] [stderr]    Compiling synstructure v0.12.1
[INFO] [stderr]    Compiling zeroize_derive v1.0.0
[INFO] [stderr]     Checking zeroize v1.0.0
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]    --> src/lib.rs:316:9
[INFO] [stdout]     |
[INFO] [stdout] 316 | /         (
[INFO] [stdout] 317 | |         ((self.random8() as u32) <<  0)
[INFO] [stdout]     | |________^
[INFO] [stdout] ...
[INFO] [stdout] 320 |           | ((self.random8() as u32) << 24))
[INFO] [stdout]     |                                            ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 316 ~         ((self.random8() as u32) <<  0)
[INFO] [stdout] 317 |         | ((self.random8() as u32) <<  8)
[INFO] [stdout] 318 |         | ((self.random8() as u32) << 16)
[INFO] [stdout] 319 ~         | ((self.random8() as u32) << 24)
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: crate-level attribute should be an inner attribute: add an exclamation mark: `#![no_builtins]`
[INFO] [stdout]    --> src/lib.rs:102:5
[INFO] [stdout]     |
[INFO] [stdout] 102 |     #[no_builtins]
[INFO] [stdout]     |     ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] note: this attribute does not have an `!`, which means it is applied to this inherent method
[INFO] [stdout]    --> src/lib.rs:105:5
[INFO] [stdout]     |
[INFO] [stdout] 105 | /     fn crush(&mut self){
[INFO] [stdout] 106 | |         let mut j = SPRITZ_N_MINUS_1;
[INFO] [stdout] 107 | |         for i in 0..SPRITZ_N_HALF {
[INFO] [stdout] 108 | |             self.tmp1 = self.s[i]; /* s_i=self.s[i] */
[INFO] [stdout] ...   |
[INFO] [stdout] 120 | |     }
[INFO] [stdout]     | |_____^
[INFO] [stdout]     = note: `#[warn(unused_attributes)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: crate-level attribute should be an inner attribute: add an exclamation mark: `#![no_builtins]`
[INFO] [stdout]    --> src/lib.rs:215:5
[INFO] [stdout]     |
[INFO] [stdout] 215 |     #[no_builtins]
[INFO] [stdout]     |     ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] note: this attribute does not have an `!`, which means it is applied to this inherent method
[INFO] [stdout]    --> src/lib.rs:217:5
[INFO] [stdout]     |
[INFO] [stdout] 217 | /     pub fn compare(data_a: &[u8], data_b: &[u8]) -> Result<u8,SpritzCipherError>
[INFO] [stdout] 218 | |     {
[INFO] [stdout] 219 | |         if data_a.len() != data_b.len() {
[INFO] [stdout] 220 | |             return Err(SpritzCipherError::LengthsDontMatch);
[INFO] [stdout] ...   |
[INFO] [stdout] 243 | |         Ok(d)
[INFO] [stdout] 244 | |     }
[INFO] [stdout]     | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]    --> src/lib.rs:316:9
[INFO] [stdout]     |
[INFO] [stdout] 316 | /         (
[INFO] [stdout] 317 | |         ((self.random8() as u32) <<  0)
[INFO] [stdout]     | |________^
[INFO] [stdout] ...
[INFO] [stdout] 320 |           | ((self.random8() as u32) << 24))
[INFO] [stdout]     |                                            ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 316 ~         ((self.random8() as u32) <<  0)
[INFO] [stdout] 317 |         | ((self.random8() as u32) <<  8)
[INFO] [stdout] 318 |         | ((self.random8() as u32) << 16)
[INFO] [stdout] 319 ~         | ((self.random8() as u32) << 24)
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: crate-level attribute should be an inner attribute: add an exclamation mark: `#![no_builtins]`
[INFO] [stdout]    --> src/lib.rs:102:5
[INFO] [stdout]     |
[INFO] [stdout] 102 |     #[no_builtins]
[INFO] [stdout]     |     ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] note: this attribute does not have an `!`, which means it is applied to this inherent method
[INFO] [stdout]    --> src/lib.rs:105:5
[INFO] [stdout]     |
[INFO] [stdout] 105 | /     fn crush(&mut self){
[INFO] [stdout] 106 | |         let mut j = SPRITZ_N_MINUS_1;
[INFO] [stdout] 107 | |         for i in 0..SPRITZ_N_HALF {
[INFO] [stdout] 108 | |             self.tmp1 = self.s[i]; /* s_i=self.s[i] */
[INFO] [stdout] ...   |
[INFO] [stdout] 120 | |     }
[INFO] [stdout]     | |_____^
[INFO] [stdout]     = note: `#[warn(unused_attributes)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: crate-level attribute should be an inner attribute: add an exclamation mark: `#![no_builtins]`
[INFO] [stdout]    --> src/lib.rs:215:5
[INFO] [stdout]     |
[INFO] [stdout] 215 |     #[no_builtins]
[INFO] [stdout]     |     ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] note: this attribute does not have an `!`, which means it is applied to this inherent method
[INFO] [stdout]    --> src/lib.rs:217:5
[INFO] [stdout]     |
[INFO] [stdout] 217 | /     pub fn compare(data_a: &[u8], data_b: &[u8]) -> Result<u8,SpritzCipherError>
[INFO] [stdout] 218 | |     {
[INFO] [stdout] 219 | |         if data_a.len() != data_b.len() {
[INFO] [stdout] 220 | |             return Err(SpritzCipherError::LengthsDontMatch);
[INFO] [stdout] ...   |
[INFO] [stdout] 243 | |         Ok(d)
[INFO] [stdout] 244 | |     }
[INFO] [stdout]     | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: non-local `impl` definition, `impl` blocks should be written at the same level as their item
[INFO] [stdout]   --> src/lib.rs:32:10
[INFO] [stdout]    |
[INFO] [stdout] 32 | #[derive(Zeroize)]
[INFO] [stdout]    |          ^------
[INFO] [stdout]    |          |
[INFO] [stdout]    |          `Zeroize` is not local
[INFO] [stdout]    |          move the `impl` block outside of this constant `_DERIVE_zeroize_Zeroize_FOR_SpritzCipherContext`
[INFO] [stdout] 33 | #[zeroize(drop)]
[INFO] [stdout] 34 | pub struct SpritzCipherContext {
[INFO] [stdout]    |            ------------------- `SpritzCipherContext` is not local
[INFO] [stdout]    |
[INFO] [stdout]    = note: the derive macro `Zeroize` defines the non-local `impl`, and may need to be changed
[INFO] [stdout]    = note: the derive macro `Zeroize` may come from an old version of the `zeroize_derive` crate, try updating your dependency with `cargo update -p zeroize_derive`
[INFO] [stdout]    = note: an `impl` is never scoped, even when it is nested inside an item, as it may impact type checking outside of that item, which can be the case if neither the trait or the self type are at the same nesting level as the `impl`
[INFO] [stdout]    = note: items in an anonymous const item (`const _: () = { ... }`) are treated as in the same scope as the anonymous const's declaration for the purpose of this lint
[INFO] [stdout]    = note: `#[warn(non_local_definitions)]` on by default
[INFO] [stdout]    = note: this warning originates in the derive macro `Zeroize` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: non-local `impl` definition, `impl` blocks should be written at the same level as their item
[INFO] [stdout]   --> src/lib.rs:32:10
[INFO] [stdout]    |
[INFO] [stdout] 32 | #[derive(Zeroize)]
[INFO] [stdout]    |          ^------
[INFO] [stdout]    |          |
[INFO] [stdout]    |          `Drop` is not local
[INFO] [stdout]    |          move the `impl` block outside of this constant `_DERIVE_Drop_FOR_SpritzCipherContext`
[INFO] [stdout] 33 | #[zeroize(drop)]
[INFO] [stdout] 34 | pub struct SpritzCipherContext {
[INFO] [stdout]    |            ------------------- `SpritzCipherContext` is not local
[INFO] [stdout]    |
[INFO] [stdout]    = note: the derive macro `Zeroize` defines the non-local `impl`, and may need to be changed
[INFO] [stdout]    = note: the derive macro `Zeroize` may come from an old version of the `zeroize_derive` crate, try updating your dependency with `cargo update -p zeroize_derive`
[INFO] [stdout]    = note: an `impl` is never scoped, even when it is nested inside an item, as it may impact type checking outside of that item, which can be the case if neither the trait or the self type are at the same nesting level as the `impl`
[INFO] [stdout]    = note: items in an anonymous const item (`const _: () = { ... }`) are treated as in the same scope as the anonymous const's declaration for the purpose of this lint
[INFO] [stdout]    = note: this warning originates in the derive macro `Zeroize` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: non-local `impl` definition, `impl` blocks should be written at the same level as their item
[INFO] [stdout]   --> src/lib.rs:32:10
[INFO] [stdout]    |
[INFO] [stdout] 32 | #[derive(Zeroize)]
[INFO] [stdout]    |          ^------
[INFO] [stdout]    |          |
[INFO] [stdout]    |          `Zeroize` is not local
[INFO] [stdout]    |          move the `impl` block outside of this constant `_DERIVE_zeroize_Zeroize_FOR_SpritzCipherContext`
[INFO] [stdout] 33 | #[zeroize(drop)]
[INFO] [stdout] 34 | pub struct SpritzCipherContext {
[INFO] [stdout]    |            ------------------- `SpritzCipherContext` is not local
[INFO] [stdout]    |
[INFO] [stdout]    = note: the derive macro `Zeroize` defines the non-local `impl`, and may need to be changed
[INFO] [stdout]    = note: the derive macro `Zeroize` may come from an old version of the `zeroize_derive` crate, try updating your dependency with `cargo update -p zeroize_derive`
[INFO] [stdout]    = note: an `impl` is never scoped, even when it is nested inside an item, as it may impact type checking outside of that item, which can be the case if neither the trait or the self type are at the same nesting level as the `impl`
[INFO] [stdout]    = note: items in an anonymous const item (`const _: () = { ... }`) are treated as in the same scope as the anonymous const's declaration for the purpose of this lint
[INFO] [stdout]    = note: `#[warn(non_local_definitions)]` on by default
[INFO] [stdout]    = note: this warning originates in the derive macro `Zeroize` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: non-local `impl` definition, `impl` blocks should be written at the same level as their item
[INFO] [stdout]   --> src/lib.rs:32:10
[INFO] [stdout]    |
[INFO] [stdout] 32 | #[derive(Zeroize)]
[INFO] [stdout]    |          ^------
[INFO] [stdout]    |          |
[INFO] [stdout]    |          `Drop` is not local
[INFO] [stdout]    |          move the `impl` block outside of this constant `_DERIVE_Drop_FOR_SpritzCipherContext`
[INFO] [stdout] 33 | #[zeroize(drop)]
[INFO] [stdout] 34 | pub struct SpritzCipherContext {
[INFO] [stdout]    |            ------------------- `SpritzCipherContext` is not local
[INFO] [stdout]    |
[INFO] [stdout]    = note: the derive macro `Zeroize` defines the non-local `impl`, and may need to be changed
[INFO] [stdout]    = note: the derive macro `Zeroize` may come from an old version of the `zeroize_derive` crate, try updating your dependency with `cargo update -p zeroize_derive`
[INFO] [stdout]    = note: an `impl` is never scoped, even when it is nested inside an item, as it may impact type checking outside of that item, which can be the case if neither the trait or the self type are at the same nesting level as the `impl`
[INFO] [stdout]    = note: items in an anonymous const item (`const _: () = { ... }`) are treated as in the same scope as the anonymous const's declaration for the purpose of this lint
[INFO] [stdout]    = note: this warning originates in the derive macro `Zeroize` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` declarations without an explicit ABI are deprecated
[INFO] [stdout]   --> tests/c_check.rs:10:9
[INFO] [stdout]    |
[INFO] [stdout] 10 |         extern  {
[INFO] [stdout]    |         ^^^^^^ help: explicitly specify the "C" ABI: `extern "C"`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(missing_abi)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> tests/c_check.rs:36:17
[INFO] [stdout]    |
[INFO] [stdout] 36 |             let mut mac_2 = [0 as u8;DIGEST_SIZE]; /* Output buffer */
[INFO] [stdout]    |                 ----^^^^^
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `mac_2`
[INFO] [stdout]   --> tests/c_check.rs:36:17
[INFO] [stdout]    |
[INFO] [stdout] 36 |             let mut mac_2 = [0 as u8;DIGEST_SIZE]; /* Output buffer */
[INFO] [stdout]    |                 ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_mac_2`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> tests/basic.rs:25:9
[INFO] [stdout]    |
[INFO] [stdout] 25 |         context.crypt(&msg, &mut buf);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 25 |         let _ = context.crypt(&msg, &mut buf);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> tests/basic.rs:30:9
[INFO] [stdout]    |
[INFO] [stdout] 30 |         context.crypt(&buf2, &mut buf);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 30 |         let _ = context.crypt(&buf2, &mut buf);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> examples/rand_check.rs:27:13
[INFO] [stdout]    |
[INFO] [stdout] 27 |             context.crypt(&msg, &mut buf);
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 27 |             let _ = context.crypt(&msg, &mut buf);
[INFO] [stdout]    |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 12.53s
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> examples/rand_check.rs:32:13
[INFO] [stdout]    |
[INFO] [stdout] 32 |             context.crypt(&buf2, &mut buf);
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 32 |             let _ = context.crypt(&buf2, &mut buf);
[INFO] [stdout]    |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "443c3a8b191ff6eb8c56b7fb88c6420209b03c30bfbcabd3e4ae7532455bf706", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "443c3a8b191ff6eb8c56b7fb88c6420209b03c30bfbcabd3e4ae7532455bf706", kill_on_drop: false }`
[INFO] [stdout] 443c3a8b191ff6eb8c56b7fb88c6420209b03c30bfbcabd3e4ae7532455bf706
