[INFO] updating cached repository https://github.com/golubov-andrey/rsmail-cli
[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] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 4f1085b6571343b8148d9fa8d5f29c8f6035a14e
[INFO] checking golubov-andrey/rsmail-cli against try#e60d9e09c55855f5a848fde8ad83e13131a5b241 for pr-68350
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgolubov-andrey%2Frsmail-cli" "/workspace/builds/worker-12/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-12/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/golubov-andrey/rsmail-cli on toolchain e60d9e09c55855f5a848fde8ad83e13131a5b241
[INFO] running `"/workspace/cargo-home/bin/cargo" "+e60d9e09c55855f5a848fde8ad83e13131a5b241" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/golubov-andrey/rsmail-cli
[INFO] finished tweaking git repo https://github.com/golubov-andrey/rsmail-cli
[INFO] tweaked toml for git repo https://github.com/golubov-andrey/rsmail-cli written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate git repo https://github.com/golubov-andrey/rsmail-cli already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+e60d9e09c55855f5a848fde8ad83e13131a5b241" "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-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "+e60d9e09c55855f5a848fde8ad83e13131a5b241" "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] d98e69783b98a3710dd384a37a257ef6a19b8a3b9435ea6a0065097ca9e94be3
[INFO] running `"docker" "start" "-a" "d98e69783b98a3710dd384a37a257ef6a19b8a3b9435ea6a0065097ca9e94be3"`
[INFO] [stderr]    Compiling libc v0.2.45
[INFO] [stderr]    Compiling pkg-config v0.3.14
[INFO] [stderr]    Compiling memchr v2.1.2
[INFO] [stderr]    Compiling openssl-sys v0.9.40
[INFO] [stderr]    Compiling openssl v0.10.16
[INFO] [stderr]    Compiling native-tls v0.2.2
[INFO] [stderr]     Checking nom v4.1.1
[INFO] [stderr]     Checking aho-corasick v0.6.9
[INFO] [stderr]     Checking regex v1.1.0
[INFO] [stderr]     Checking imap-proto v0.7.0
[INFO] [stderr]     Checking imap v0.10.0
[INFO] [stderr]     Checking rsmail-cli v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/main.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 | /     Ctx::init(User::from_cli())
[INFO] [stderr] 12 | |         .map(|mut ctx| {
[INFO] [stderr] 13 | |             ctx.session.select("INBOX").unwrap();
[INFO] [stderr] 14 | |             ctx.session.fetch("1", "RFC822")
[INFO] [stderr] ...  |
[INFO] [stderr] 27 | |                 });
[INFO] [stderr] 28 | |         });
[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]   --> src/main.rs:14:13
[INFO] [stderr]    |
[INFO] [stderr] 14 | /             ctx.session.fetch("1", "RFC822")
[INFO] [stderr] 15 | |                 .map(|messages| {
[INFO] [stderr] 16 | |                     let message = messages.iter().next().unwrap();
[INFO] [stderr] 17 | |
[INFO] [stderr] ...  |
[INFO] [stderr] 26 | |                     println!("{}", body);
[INFO] [stderr] 27 | |                 });
[INFO] [stderr]    | |___________________^
[INFO] [stderr]    |
[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]   --> src/main.rs:24:21
[INFO] [stderr]    |
[INFO] [stderr] 24 |                     ctx.session.logout();
[INFO] [stderr]    |                     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[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]   --> src/main.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 | /     Ctx::init(User::from_cli())
[INFO] [stderr] 12 | |         .map(|mut ctx| {
[INFO] [stderr] 13 | |             ctx.session.select("INBOX").unwrap();
[INFO] [stderr] 14 | |             ctx.session.fetch("1", "RFC822")
[INFO] [stderr] ...  |
[INFO] [stderr] 27 | |                 });
[INFO] [stderr] 28 | |         });
[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]   --> src/main.rs:14:13
[INFO] [stderr]    |
[INFO] [stderr] 14 | /             ctx.session.fetch("1", "RFC822")
[INFO] [stderr] 15 | |                 .map(|messages| {
[INFO] [stderr] 16 | |                     let message = messages.iter().next().unwrap();
[INFO] [stderr] 17 | |
[INFO] [stderr] ...  |
[INFO] [stderr] 26 | |                     println!("{}", body);
[INFO] [stderr] 27 | |                 });
[INFO] [stderr]    | |___________________^
[INFO] [stderr]    |
[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]   --> src/main.rs:24:21
[INFO] [stderr]    |
[INFO] [stderr] 24 |                     ctx.session.logout();
[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 17.39s
[INFO] running `"docker" "inspect" "d98e69783b98a3710dd384a37a257ef6a19b8a3b9435ea6a0065097ca9e94be3"`
[INFO] running `"docker" "rm" "-f" "d98e69783b98a3710dd384a37a257ef6a19b8a3b9435ea6a0065097ca9e94be3"`
[INFO] [stdout] d98e69783b98a3710dd384a37a257ef6a19b8a3b9435ea6a0065097ca9e94be3