[INFO] fetching crate rsmtp 0.1.3...
[INFO] checking rsmtp-0.1.3 against master#ab869e094a907cc5d19b4080f22eccaf347f1f95 for pr-129604
[INFO] extracting crate rsmtp 0.1.3 into /workspace/builds/worker-0-tc1/source
[INFO] validating manifest of crates.io crate rsmtp 0.1.3 on toolchain ab869e094a907cc5d19b4080f22eccaf347f1f95
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "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-0-tc1/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" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a178185f84b6a9f205f5353ebd0873d750caac1b53e70f620cd93874b8706423
[INFO] running `Command { std: "docker" "start" "-a" "a178185f84b6a9f205f5353ebd0873d750caac1b53e70f620cd93874b8706423", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a178185f84b6a9f205f5353ebd0873d750caac1b53e70f620cd93874b8706423", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a178185f84b6a9f205f5353ebd0873d750caac1b53e70f620cd93874b8706423", kill_on_drop: false }`
[INFO] [stdout] a178185f84b6a9f205f5353ebd0873d750caac1b53e70f620cd93874b8706423
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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" "-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0961c35dd4c36381523bca6d43f8b19607eea7044003b6d3b50be8baa934dffc
[INFO] running `Command { std: "docker" "start" "-a" "0961c35dd4c36381523bca6d43f8b19607eea7044003b6d3b50be8baa934dffc", 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 1.53s
[INFO] running `Command { std: "docker" "inspect" "0961c35dd4c36381523bca6d43f8b19607eea7044003b6d3b50be8baa934dffc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0961c35dd4c36381523bca6d43f8b19607eea7044003b6d3b50be8baa934dffc", kill_on_drop: false }`
[INFO] [stdout] 0961c35dd4c36381523bca6d43f8b19607eea7044003b6d3b50be8baa934dffc