[INFO] updating cached repository https://github.com/towa48/rust-libre-storage
[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/towa48/rust-libre-storage
[INFO] [stderr]    97b4e8e..31e96b4  master     -> master
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 31e96b4dc55648f19a9cfe6b135cc4a042803f2f
[INFO] checking towa48/rust-libre-storage against try#96b3c169cd2d8959926fa240f10342f1659f8ae3 for pr-71896
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftowa48%2Frust-libre-storage" "/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/towa48/rust-libre-storage on toolchain 96b3c169cd2d8959926fa240f10342f1659f8ae3
[INFO] running `"/workspace/cargo-home/bin/cargo" "+96b3c169cd2d8959926fa240f10342f1659f8ae3" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/towa48/rust-libre-storage
[INFO] finished tweaking git repo https://github.com/towa48/rust-libre-storage
[INFO] tweaked toml for git repo https://github.com/towa48/rust-libre-storage written to /workspace/builds/worker-11/source/Cargo.toml
[INFO] crate git repo https://github.com/towa48/rust-libre-storage already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+96b3c169cd2d8959926fa240f10342f1659f8ae3" "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" "+96b3c169cd2d8959926fa240f10342f1659f8ae3" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 02a30d65caa4bdbfcf3bcd7b6f4ef8c12ca5f8169a19c4e68bea1f6b4b68b4c5
[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" "02a30d65caa4bdbfcf3bcd7b6f4ef8c12ca5f8169a19c4e68bea1f6b4b68b4c5"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling log v0.4.8
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[INFO] [stderr]    Compiling devise_core v0.2.0
[INFO] [stderr]    Compiling diesel_derives v1.4.1
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[INFO] [stderr]    Compiling devise_codegen v0.2.0
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[INFO] [stderr]     Checking rust-libre-storage v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: constant is never used: `SALT_LEN`
[INFO] [stderr]   --> src/crypto.rs:11:1
[INFO] [stderr]    |
[INFO] [stderr] 11 | const SALT_LEN: usize = 64;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `PasswordResult`
[INFO] [stderr]   --> src/crypto.rs:15:12
[INFO] [stderr]    |
[INFO] [stderr] 15 | pub struct PasswordResult<'a> {
[INFO] [stderr]    |            ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `new`
[INFO] [stderr]   --> src/crypto.rs:21:4
[INFO] [stderr]    |
[INFO] [stderr] 21 | /    fn new<S>(password: S, salt: S) -> PasswordResult<'a>
[INFO] [stderr] 22 | |        where S: Into<Cow<'a, str>>
[INFO] [stderr] 23 | |    {
[INFO] [stderr] 24 | |        PasswordResult { password: password.into(), salt: salt.into() }
[INFO] [stderr] 25 | |    }
[INFO] [stderr]    | |____^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `create_salt`
[INFO] [stderr]   --> src/crypto.rs:28:4
[INFO] [stderr]    |
[INFO] [stderr] 28 | fn create_salt() -> Vec<u8> {
[INFO] [stderr]    |    ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `create_password_hash`
[INFO] [stderr]   --> src/crypto.rs:45:8
[INFO] [stderr]    |
[INFO] [stderr] 45 | pub fn create_password_hash<'a>(password: &str) -> PasswordResult<'a> {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 5 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2m 52s
[INFO] running `"docker" "inspect" "02a30d65caa4bdbfcf3bcd7b6f4ef8c12ca5f8169a19c4e68bea1f6b4b68b4c5"`
[INFO] running `"docker" "rm" "-f" "02a30d65caa4bdbfcf3bcd7b6f4ef8c12ca5f8169a19c4e68bea1f6b4b68b4c5"`
[INFO] [stdout] 02a30d65caa4bdbfcf3bcd7b6f4ef8c12ca5f8169a19c4e68bea1f6b4b68b4c5