[INFO] fetching crate rsmtp 0.1.3...
[INFO] checking rsmtp-0.1.3 against try#c387b04bf028733cd561d62128c8a5eee4bc1458+rustflags=-Dtail_expr_drop_order for pr-130930
[INFO] extracting crate rsmtp 0.1.3 into /workspace/builds/worker-6-tc2/source
[INFO] validating manifest of crates.io crate rsmtp 0.1.3 on toolchain c387b04bf028733cd561d62128c8a5eee4bc1458
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rsmtp 0.1.3
[INFO] finished tweaking crates.io crate rsmtp 0.1.3
[INFO] tweaked toml for crates.io crate rsmtp 0.1.3 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] crate crates.io crate rsmtp 0.1.3 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" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:6252d7ea7fb8caaf7af6d800c5fb250a9cd862b9a7f9508afb3c54fa7fe1102e" "/opt/rustwide/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ae1da34d0e27b1838938d95842221ac1fc0a47cb2ce6f0a99f5e05eaf8dbb664
[INFO] running `Command { std: "docker" "start" "-a" "ae1da34d0e27b1838938d95842221ac1fc0a47cb2ce6f0a99f5e05eaf8dbb664", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ae1da34d0e27b1838938d95842221ac1fc0a47cb2ce6f0a99f5e05eaf8dbb664", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ae1da34d0e27b1838938d95842221ac1fc0a47cb2ce6f0a99f5e05eaf8dbb664", kill_on_drop: false }`
[INFO] [stdout] ae1da34d0e27b1838938d95842221ac1fc0a47cb2ce6f0a99f5e05eaf8dbb664
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid -Dtail_expr_drop_order" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:6252d7ea7fb8caaf7af6d800c5fb250a9cd862b9a7f9508afb3c54fa7fe1102e" "/opt/rustwide/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 33778d15f98d1400682287c255767894a09e163a0d6d28cae2a17b9620ffcedb
[INFO] running `Command { std: "docker" "start" "-a" "33778d15f98d1400682287c255767894a09e163a0d6d28cae2a17b9620ffcedb", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.150
[INFO] [stderr]     Checking rsmtp v0.1.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::error::Error`
[INFO] [stdout]   --> src/common/stream.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 20 | use std::error::Error;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `ready` is never used
[INFO] [stdout]    --> src/server/mod.rs:175:8
[INFO] [stdout]     |
[INFO] [stdout] 134 | impl<CT, ST> Command<CT, ST> {
[INFO] [stdout]     | ---------------------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 175 |     fn ready(&self) -> bool {
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `set_hostname`, `set_max_recipients`, `set_max_message_size`, `increase_max_command_line_size`, and `increase_max_text_line_size` are never used
[INFO] [stdout]    --> src/server/mod.rs:257:8
[INFO] [stdout]     |
[INFO] [stdout] 236 | impl<CT: 'static + Send + Sync + Clone> Server<CT> {
[INFO] [stdout]     | -------------------------------------------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 257 |     fn set_hostname(&mut self, hostname: &str) {
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 261 |     fn set_max_recipients(&mut self, max: usize) {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 268 |     fn set_max_message_size(&mut self, max: usize) {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 283 |     fn increase_max_command_line_size(&mut self, bytes: usize) {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 287 |     fn increase_max_text_line_size(&mut self, bytes: usize) {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `ready` is never used
[INFO] [stdout]    --> src/server/mod.rs:175:8
[INFO] [stdout]     |
[INFO] [stdout] 134 | impl<CT, ST> Command<CT, ST> {
[INFO] [stdout]     | ---------------------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 175 |     fn ready(&self) -> bool {
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `set_hostname`, `set_max_recipients`, `set_max_message_size`, `increase_max_command_line_size`, and `increase_max_text_line_size` are never used
[INFO] [stdout]    --> src/server/mod.rs:257:8
[INFO] [stdout]     |
[INFO] [stdout] 236 | impl<CT: 'static + Send + Sync + Clone> Server<CT> {
[INFO] [stdout]     | -------------------------------------------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 257 |     fn set_hostname(&mut self, hostname: &str) {
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 261 |     fn set_max_recipients(&mut self, max: usize) {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 268 |     fn set_max_message_size(&mut self, max: usize) {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 283 |     fn increase_max_command_line_size(&mut self, bytes: usize) {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 287 |     fn increase_max_text_line_size(&mut self, bytes: usize) {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.20s
[INFO] running `Command { std: "docker" "inspect" "33778d15f98d1400682287c255767894a09e163a0d6d28cae2a17b9620ffcedb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "33778d15f98d1400682287c255767894a09e163a0d6d28cae2a17b9620ffcedb", kill_on_drop: false }`
[INFO] [stdout] 33778d15f98d1400682287c255767894a09e163a0d6d28cae2a17b9620ffcedb