[INFO] cloning repository https://github.com/kvago36/mail_v2
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/kvago36/mail_v2" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkvago36%2Fmail_v2", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkvago36%2Fmail_v2'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] fb71fa4d7f238f037273b63dbf5b4c73ca70cb45
[INFO] checking kvago36/mail_v2 against master#bca37a20bd376ce3fd138e7cdee7fe704e0f8814 for pr-139493-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkvago36%2Fmail_v2" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/kvago36/mail_v2
[INFO] finished tweaking git repo https://github.com/kvago36/mail_v2
[INFO] tweaked toml for git repo https://github.com/kvago36/mail_v2 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/kvago36/mail_v2 on toolchain bca37a20bd376ce3fd138e7cdee7fe704e0f8814
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+bca37a20bd376ce3fd138e7cdee7fe704e0f8814" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/kvago36/mail_v2 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" "+bca37a20bd376ce3fd138e7cdee7fe704e0f8814" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+bca37a20bd376ce3fd138e7cdee7fe704e0f8814" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 372c2bdebb57ca6758bbc642ec982ecf3d1e2d195ac416bbdead0881cd7a00f9
[INFO] running `Command { std: "docker" "start" "-a" "372c2bdebb57ca6758bbc642ec982ecf3d1e2d195ac416bbdead0881cd7a00f9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "372c2bdebb57ca6758bbc642ec982ecf3d1e2d195ac416bbdead0881cd7a00f9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "372c2bdebb57ca6758bbc642ec982ecf3d1e2d195ac416bbdead0881cd7a00f9", kill_on_drop: false }`
[INFO] [stdout] 372c2bdebb57ca6758bbc642ec982ecf3d1e2d195ac416bbdead0881cd7a00f9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+bca37a20bd376ce3fd138e7cdee7fe704e0f8814" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c7dba8e673ae52a358acbc358a0aa0d730538ff352713fde46832995bad87a05
[INFO] running `Command { std: "docker" "start" "-a" "c7dba8e673ae52a358acbc358a0aa0d730538ff352713fde46832995bad87a05", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.81
[INFO] [stderr]    Compiling libc v0.2.154
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling cc v1.0.96
[INFO] [stderr]    Compiling strsim v0.10.0
[INFO] [stderr]     Checking idna v0.5.0
[INFO] [stderr]     Checking semver-parser v0.7.0
[INFO] [stderr]    Compiling rustls v0.21.12
[INFO] [stderr]     Checking matches v0.1.10
[INFO] [stderr]    Compiling serde_json v1.0.117
[INFO] [stderr]    Compiling time-macros v0.2.18
[INFO] [stderr]    Compiling rustc_version_runtime v0.2.1
[INFO] [stderr]     Checking futures-channel v0.3.30
[INFO] [stderr]     Checking lru-cache v0.1.2
[INFO] [stderr]     Checking finl_unicode v1.2.0
[INFO] [stderr]     Checking chrono v0.4.38
[INFO] [stderr]     Checking idna v0.2.3
[INFO] [stderr]     Checking semver v0.9.0
[INFO] [stderr]     Checking sha-1 v0.10.1
[INFO] [stderr]     Checking pbkdf2 v0.11.0
[INFO] [stderr]     Checking hmac v0.12.1
[INFO] [stderr]     Checking take_mut v0.2.2
[INFO] [stderr]     Checking rustc_version v0.2.3
[INFO] [stderr]     Checking mail_v2 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking stringprep v0.1.4
[INFO] [stderr]     Checking url v2.5.0
[INFO] [stderr]    Compiling quote v1.0.36
[INFO] [stderr]    Compiling syn v2.0.60
[INFO] [stderr]    Compiling ring v0.17.8
[INFO] [stderr]     Checking getrandom v0.2.15
[INFO] [stderr]     Checking parking_lot_core v0.9.10
[INFO] [stderr]     Checking mio v0.8.11
[INFO] [stderr]     Checking num_cpus v1.16.0
[INFO] [stderr]     Checking socket2 v0.5.7
[INFO] [stderr]     Checking signal-hook-registry v1.4.2
[INFO] [stderr]     Checking hostname v0.3.1
[INFO] [stderr]     Checking socket2 v0.4.10
[INFO] [stderr]     Checking resolv-conf v0.7.0
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking ahash v0.8.11
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking parking_lot v0.12.2
[INFO] [stderr]     Checking time v0.3.36
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]    Compiling serde_derive v1.0.201
[INFO] [stderr]    Compiling tokio-macros v2.2.0
[INFO] [stderr]    Compiling futures-macro v0.3.30
[INFO] [stderr]    Compiling thiserror-impl v1.0.60
[INFO] [stderr]    Compiling async-trait v0.1.80
[INFO] [stderr]     Checking tokio v1.37.0
[INFO] [stderr]     Checking rustls-webpki v0.101.7
[INFO] [stderr]     Checking sct v0.7.1
[INFO] [stderr]     Checking futures-util v0.3.30
[INFO] [stderr]     Checking thiserror v1.0.60
[INFO] [stderr]    Compiling darling_core v0.13.4
[INFO] [stderr]    Compiling enum-as-inner v0.4.0
[INFO] [stderr]    Compiling typed-builder v0.10.0
[INFO] [stderr]    Compiling derive_more v0.99.17
[INFO] [stderr]    Compiling derivative v2.2.0
[INFO] [stderr]     Checking serde v1.0.201
[INFO] [stderr]    Compiling darling_macro v0.13.4
[INFO] [stderr]    Compiling darling v0.13.4
[INFO] [stderr]     Checking futures-executor v0.3.30
[INFO] [stderr]    Compiling serde_with_macros v1.5.2
[INFO] [stderr]     Checking trust-dns-proto v0.21.2
[INFO] [stderr]     Checking tokio-util v0.7.11
[INFO] [stderr]     Checking tokio-rustls v0.24.1
[INFO] [stderr]     Checking tcpclient v0.1.0 (/opt/rustwide/workdir/tcpclient)
[INFO] [stdout] warning: unused import: `AsyncReadExt`
[INFO] [stdout]  --> tcpclient/src/main.rs:1:17
[INFO] [stdout]   |
[INFO] [stdout] 1 | use tokio::io::{AsyncReadExt, AsyncWriteExt};
[INFO] [stdout]   |                 ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Duration` and `sleep`
[INFO] [stdout]  --> tcpclient/src/main.rs:3:19
[INFO] [stdout]   |
[INFO] [stdout] 3 | use tokio::time::{sleep, Duration};
[INFO] [stdout]   |                   ^^^^^  ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `AsyncReadExt`
[INFO] [stdout]  --> tcpclient/src/main.rs:1:17
[INFO] [stdout]   |
[INFO] [stdout] 1 | use tokio::io::{AsyncReadExt, AsyncWriteExt};
[INFO] [stdout]   |                 ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `state` is never read
[INFO] [stdout]   --> tcpclient/src/main.rs:59:25
[INFO] [stdout]    |
[INFO] [stdout] 59 |                         state = State::End;
[INFO] [stdout]    |                         ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Duration` and `sleep`
[INFO] [stdout]  --> tcpclient/src/main.rs:3:19
[INFO] [stdout]   |
[INFO] [stdout] 3 | use tokio::time::{sleep, Duration};
[INFO] [stdout]   |                   ^^^^^  ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `state` is never read
[INFO] [stdout]   --> tcpclient/src/main.rs:59:25
[INFO] [stdout]    |
[INFO] [stdout] 59 |                         state = State::End;
[INFO] [stdout]    |                         ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking serde_bytes v0.11.14
[INFO] [stderr]     Checking uuid v1.8.0
[INFO] [stderr]     Checking serde_with v1.14.0
[INFO] [stderr]     Checking tcp v0.1.0 (/opt/rustwide/workdir/tcp)
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]  --> tcp/src/response.rs:8:8
[INFO] [stdout]   |
[INFO] [stdout] 7 | impl<'a> TcpResponse<'a> {
[INFO] [stdout]   | ------------------------ associated function in this implementation
[INFO] [stdout] 8 |     fn new(code: &'a str, body: String) -> Self {
[INFO] [stdout]   |        ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]  --> tcp/src/response.rs:8:8
[INFO] [stdout]   |
[INFO] [stdout] 7 | impl<'a> TcpResponse<'a> {
[INFO] [stdout]   | ------------------------ associated function in this implementation
[INFO] [stdout] 8 |     fn new(code: &'a str, body: String) -> Self {
[INFO] [stdout]   |        ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking trust-dns-resolver v0.21.2
[INFO] [stderr]     Checking bson v2.10.0
[INFO] [stderr]     Checking mongodb v2.8.2
[INFO] [stderr]     Checking tcpserver v0.1.0 (/opt/rustwide/workdir/tcpserver)
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]   --> tcpserver/src/server.rs:85:25
[INFO] [stdout]    |
[INFO] [stdout] 85 |                     Err(e) => {
[INFO] [stdout]    |                         ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]   --> tcpserver/src/server.rs:85:25
[INFO] [stdout]    |
[INFO] [stdout] 85 |                     Err(e) => {
[INFO] [stdout]    |                         ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> tcpserver/src/main.rs:21:14
[INFO] [stdout]    |
[INFO] [stdout] 21 |         let (mut socket, _) = listener.accept().await?;
[INFO] [stdout]    |              ----^^^^^^
[INFO] [stdout]    |              |
[INFO] [stdout]    |              help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> tcpserver/src/main.rs:21:14
[INFO] [stdout]    |
[INFO] [stdout] 21 |         let (mut socket, _) = listener.accept().await?;
[INFO] [stdout]    |              ----^^^^^^
[INFO] [stdout]    |              |
[INFO] [stdout]    |              help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> tcpserver/src/state.rs:13:13
[INFO] [stdout]    |
[INFO] [stdout] 13 |     Greeted(String),
[INFO] [stdout]    |     ------- ^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 13 -     Greeted(String),
[INFO] [stdout] 13 +     Greeted(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> tcpserver/src/state.rs:14:10
[INFO] [stdout]    |
[INFO] [stdout] 14 |     Mail(String),
[INFO] [stdout]    |     ---- ^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 14 -     Mail(String),
[INFO] [stdout] 14 +     Mail(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `content` is never read
[INFO] [stdout]   --> tcpserver/src/state.rs:22:5
[INFO] [stdout]    |
[INFO] [stdout] 20 | pub struct Post {
[INFO] [stdout]    |            ---- field in this struct
[INFO] [stdout] 21 |     state: State,
[INFO] [stdout] 22 |     content: String,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> tcpserver/src/state.rs:13:13
[INFO] [stdout]    |
[INFO] [stdout] 13 |     Greeted(String),
[INFO] [stdout]    |     ------- ^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 13 -     Greeted(String),
[INFO] [stdout] 13 +     Greeted(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> tcpserver/src/state.rs:14:10
[INFO] [stdout]    |
[INFO] [stdout] 14 |     Mail(String),
[INFO] [stdout]    |     ---- ^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 14 -     Mail(String),
[INFO] [stdout] 14 +     Mail(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `content` is never read
[INFO] [stdout]   --> tcpserver/src/state.rs:22:5
[INFO] [stdout]    |
[INFO] [stdout] 20 | pub struct Post {
[INFO] [stdout]    |            ---- field in this struct
[INFO] [stdout] 21 |     state: State,
[INFO] [stdout] 22 |     content: String,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> tcpserver/src/main.rs:26:13
[INFO] [stdout]    |
[INFO] [stdout] 26 |             smtp.serve().await;
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 26 |             let _ = smtp.serve().await;
[INFO] [stdout]    |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> tcpserver/src/main.rs:26:13
[INFO] [stdout]    |
[INFO] [stdout] 26 |             smtp.serve().await;
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 26 |             let _ = smtp.serve().await;
[INFO] [stdout]    |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 46.41s
[INFO] running `Command { std: "docker" "inspect" "c7dba8e673ae52a358acbc358a0aa0d730538ff352713fde46832995bad87a05", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c7dba8e673ae52a358acbc358a0aa0d730538ff352713fde46832995bad87a05", kill_on_drop: false }`
[INFO] [stdout] c7dba8e673ae52a358acbc358a0aa0d730538ff352713fde46832995bad87a05
