[INFO] updating cached repository https://github.com/danielthegray/vaultfile
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] [stderr] From https://github.com/danielthegray/vaultfile
[INFO] [stderr]    8086607..eb9ba65  master     -> master
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] eb9ba65efa21afaea6d24c750284bc7746e14cd9
[INFO] checking danielthegray/vaultfile against master#6250d56355d72264ece721e8d0dc95b16a6824b1 for pr-68350
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdanielthegray%2Fvaultfile" "/workspace/builds/worker-11/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-11/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/danielthegray/vaultfile on toolchain 6250d56355d72264ece721e8d0dc95b16a6824b1
[INFO] running `"/workspace/cargo-home/bin/cargo" "+6250d56355d72264ece721e8d0dc95b16a6824b1" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/danielthegray/vaultfile
[INFO] finished tweaking git repo https://github.com/danielthegray/vaultfile
[INFO] tweaked toml for git repo https://github.com/danielthegray/vaultfile written to /workspace/builds/worker-11/source/Cargo.toml
[INFO] crate git repo https://github.com/danielthegray/vaultfile already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+6250d56355d72264ece721e8d0dc95b16a6824b1" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "+6250d56355d72264ece721e8d0dc95b16a6824b1" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 65b47c02675b265573ab198f4333d16a310dc598187a9ff35e0bb1e9fed6199c
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "65b47c02675b265573ab198f4333d16a310dc598187a9ff35e0bb1e9fed6199c"`
[INFO] [stderr]    Compiling libm v0.2.1
[INFO] [stderr]     Checking smallvec v1.1.0
[INFO] [stderr]     Checking base64 v0.2.1
[INFO] [stderr]    Compiling num-traits v0.2.10
[INFO] [stderr]    Compiling num-integer v0.1.41
[INFO] [stderr]    Compiling num-bigint-dig v0.6.0
[INFO] [stderr]     Checking backtrace-sys v0.1.32
[INFO] [stderr]     Checking aes-soft v0.3.3
[INFO] [stderr]    Compiling zeroize_derive v1.0.0
[INFO] [stderr]     Checking backtrace v0.3.40
[INFO] [stderr]     Checking failure v0.1.6
[INFO] [stderr]     Checking zeroize v1.1.0
[INFO] [stderr]     Checking num-iter v0.1.39
[INFO] [stderr]     Checking rsa v0.2.0
[INFO] [stderr]     Checking vaultfile v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused import: `rsa::RSAPublicKey`
[INFO] [stderr]  --> src/main.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use rsa::RSAPublicKey;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `rsa::RSAPublicKey`
[INFO] [stderr]  --> src/main.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use rsa::RSAPublicKey;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `deregister_key`
[INFO] [stderr]    --> src/vaultfile.rs:134:5
[INFO] [stderr]     |
[INFO] [stderr] 134 |     pub fn deregister_key(&mut self, key_name: &str) -> Result<(), VaultfileError> {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `list_keys`
[INFO] [stderr]    --> src/vaultfile.rs:142:5
[INFO] [stderr]     |
[INFO] [stderr] 142 |     pub fn list_keys(&self) -> Vec<String> {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `add_secret`
[INFO] [stderr]    --> src/vaultfile.rs:146:5
[INFO] [stderr]     |
[INFO] [stderr] 146 | /     pub fn add_secret(
[INFO] [stderr] 147 | |         &mut self,
[INFO] [stderr] 148 | |         secret_name: &str,
[INFO] [stderr] 149 | |         secret_value: &str,
[INFO] [stderr] ...   |
[INFO] [stderr] 170 | |         Ok(())
[INFO] [stderr] 171 | |     }
[INFO] [stderr]     | |_____^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `read_secret`
[INFO] [stderr]    --> src/vaultfile.rs:173:5
[INFO] [stderr]     |
[INFO] [stderr] 173 | /     pub fn read_secret(
[INFO] [stderr] 174 | |         &self,
[INFO] [stderr] 175 | |         secret_name: String,
[INFO] [stderr] 176 | |         private_key: RSAPrivateKey,
[INFO] [stderr] ...   |
[INFO] [stderr] 205 | |         decrypt_secret(&secret_name, &encrypted_secret, &aes_key)
[INFO] [stderr] 206 | |     }
[INFO] [stderr]     | |_____^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `EncryptionResult`
[INFO] [stderr]    --> src/vaultfile.rs:215:8
[INFO] [stderr]     |
[INFO] [stderr] 215 | struct EncryptionResult {
[INFO] [stderr]     |        ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `encrypt_string`
[INFO] [stderr]    --> src/vaultfile.rs:220:4
[INFO] [stderr]     |
[INFO] [stderr] 220 | fn encrypt_string(plaintext: &str) -> EncryptionResult {
[INFO] [stderr]     |    ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `decrypt_secret`
[INFO] [stderr]    --> src/vaultfile.rs:236:4
[INFO] [stderr]     |
[INFO] [stderr] 236 | fn decrypt_secret(
[INFO] [stderr]     |    ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `BadBase64Secret`
[INFO] [stderr]    --> src/vaultfile.rs:376:5
[INFO] [stderr]     |
[INFO] [stderr] 376 |     BadBase64Secret(String),
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `SecretNotFound`
[INFO] [stderr]    --> src/vaultfile.rs:377:5
[INFO] [stderr]     |
[INFO] [stderr] 377 |     SecretNotFound(String),
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `CorruptDataInSecret`
[INFO] [stderr]    --> src/vaultfile.rs:378:5
[INFO] [stderr]     |
[INFO] [stderr] 378 |     CorruptDataInSecret(String),
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `deregister_key`
[INFO] [stderr]    --> src/vaultfile.rs:134:5
[INFO] [stderr]     |
[INFO] [stderr] 134 |     pub fn deregister_key(&mut self, key_name: &str) -> Result<(), VaultfileError> {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `list_keys`
[INFO] [stderr]    --> src/vaultfile.rs:142:5
[INFO] [stderr]     |
[INFO] [stderr] 142 |     pub fn list_keys(&self) -> Vec<String> {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `add_secret`
[INFO] [stderr]    --> src/vaultfile.rs:146:5
[INFO] [stderr]     |
[INFO] [stderr] 146 | /     pub fn add_secret(
[INFO] [stderr] 147 | |         &mut self,
[INFO] [stderr] 148 | |         secret_name: &str,
[INFO] [stderr] 149 | |         secret_value: &str,
[INFO] [stderr] ...   |
[INFO] [stderr] 170 | |         Ok(())
[INFO] [stderr] 171 | |     }
[INFO] [stderr]     | |_____^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `read_secret`
[INFO] [stderr]    --> src/vaultfile.rs:173:5
[INFO] [stderr]     |
[INFO] [stderr] 173 | /     pub fn read_secret(
[INFO] [stderr] 174 | |         &self,
[INFO] [stderr] 175 | |         secret_name: String,
[INFO] [stderr] 176 | |         private_key: RSAPrivateKey,
[INFO] [stderr] ...   |
[INFO] [stderr] 205 | |         decrypt_secret(&secret_name, &encrypted_secret, &aes_key)
[INFO] [stderr] 206 | |     }
[INFO] [stderr]     | |_____^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `EncryptionResult`
[INFO] [stderr]    --> src/vaultfile.rs:215:8
[INFO] [stderr]     |
[INFO] [stderr] 215 | struct EncryptionResult {
[INFO] [stderr]     |        ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `encrypt_string`
[INFO] [stderr]    --> src/vaultfile.rs:220:4
[INFO] [stderr]     |
[INFO] [stderr] 220 | fn encrypt_string(plaintext: &str) -> EncryptionResult {
[INFO] [stderr]     |    ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `decrypt_secret`
[INFO] [stderr]    --> src/vaultfile.rs:236:4
[INFO] [stderr]     |
[INFO] [stderr] 236 | fn decrypt_secret(
[INFO] [stderr]     |    ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `BadBase64Secret`
[INFO] [stderr]    --> src/vaultfile.rs:376:5
[INFO] [stderr]     |
[INFO] [stderr] 376 |     BadBase64Secret(String),
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `SecretNotFound`
[INFO] [stderr]    --> src/vaultfile.rs:377:5
[INFO] [stderr]     |
[INFO] [stderr] 377 |     SecretNotFound(String),
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `CorruptDataInSecret`
[INFO] [stderr]    --> src/vaultfile.rs:378:5
[INFO] [stderr]     |
[INFO] [stderr] 378 |     CorruptDataInSecret(String),
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 25.63s
[INFO] running `"docker" "inspect" "65b47c02675b265573ab198f4333d16a310dc598187a9ff35e0bb1e9fed6199c"`
[INFO] running `"docker" "rm" "-f" "65b47c02675b265573ab198f4333d16a310dc598187a9ff35e0bb1e9fed6199c"`
[INFO] [stdout] 65b47c02675b265573ab198f4333d16a310dc598187a9ff35e0bb1e9fed6199c