[INFO] fetching crate mailme 0.1.1...
[INFO] testing mailme-0.1.1 against 1.100.0-beta.1+cargoflags=--release for beta-release-1.100-2
[INFO] extracting crate mailme 0.1.1 into /workspace/builds/worker-5-tc2/source
[INFO] started tweaking crates.io crate mailme 0.1.1
[INFO] finished tweaking crates.io crate mailme 0.1.1
[INFO] tweaked toml for crates.io crate mailme 0.1.1 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate mailme 0.1.1 on toolchain 1.100.0-beta.1
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.100.0-beta.1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.100.0-beta.1" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 71 packages to highest compatible versions
[INFO] [stderr]       Adding aho-corasick v0.7.15 (available: v0.7.20)
[INFO] [stderr]       Adding memchr v2.3.4 (available: v2.8.3)
[INFO] [stderr]       Adding nom v6.2.2 (available: v8.0.0)
[INFO] [stderr]       Adding pretty_env_logger v0.4.0 (available: v0.5.0)
[INFO] [stderr]       Adding regex v1.4.6 (available: v1.13.1)
[INFO] [stderr]       Adding thiserror v1.0.69 (available: v2.0.21)
[INFO] [stderr]       Adding tokio v0.3.7 (available: v1.53.3)
[INFO] [stderr]       Adding tokio-rustls v0.20.0 (available: v0.26.6)
[INFO] [stderr]       Adding webpki-roots v0.20.0 (available: v1.0.9)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.100.0-beta.1" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:77db811e55d90add9212f6832c23229e3de5f1c1f9905e8cb07319ea15df73ac" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] abad8b8f58d6ffe1ffdfb227b61313136dd0eacda2163a1feaa7e4a8acda8c09
[INFO] running `Command { std: "docker" "start" "abad8b8f58d6ffe1ffdfb227b61313136dd0eacda2163a1feaa7e4a8acda8c09", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "abad8b8f58d6ffe1ffdfb227b61313136dd0eacda2163a1feaa7e4a8acda8c09", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "abad8b8f58d6ffe1ffdfb227b61313136dd0eacda2163a1feaa7e4a8acda8c09" "/opt/rustwide/cargo-home/bin/cargo" "+1.100.0-beta.1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "abad8b8f58d6ffe1ffdfb227b61313136dd0eacda2163a1feaa7e4a8acda8c09", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-w" "/opt/rustwide/workdir" "--user" "0:0" "abad8b8f58d6ffe1ffdfb227b61313136dd0eacda2163a1feaa7e4a8acda8c09" "/opt/rustwide/cargo-home/bin/cargo" "+1.100.0-beta.1" "build" "--frozen" "--message-format=json" "--release", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling radium v0.5.3
[INFO] [stderr]    Compiling lexical-core v0.7.6
[INFO] [stderr]    Compiling tokio v0.3.7
[INFO] [stderr]    Compiling nom v6.2.2
[INFO] [stderr]    Compiling mio v0.7.14
[INFO] [stderr]    Compiling bytes v0.6.0
[INFO] [stderr]    Compiling base64 v0.12.3
[INFO] [stderr]    Compiling arrayvec v0.5.2
[INFO] [stderr]    Compiling ring v0.16.20
[INFO] [stderr]    Compiling bitvec v0.19.6
[INFO] [stderr]    Compiling webpki v0.21.4
[INFO] [stderr]    Compiling sct v0.6.1
[INFO] [stderr]    Compiling rustls v0.18.1
[INFO] [stderr]    Compiling webpki-roots v0.20.0
[INFO] [stderr]    Compiling tokio-rustls v0.20.0
[INFO] [stderr]    Compiling mailme v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: fields `msg_count` and `mailbox_size` are never read
[INFO] [stdout]    --> src/pop3.rs:346:5
[INFO] [stdout]     |
[INFO] [stdout] 345 | pub struct POP3Status {
[INFO] [stdout]     |            ---------- fields in this struct
[INFO] [stdout] 346 |     msg_count: usize,
[INFO] [stdout]     |     ^^^^^^^^^
[INFO] [stdout] 347 |     mailbox_size: usize,
[INFO] [stdout]     |     ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `POP3Status` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `release` profile [optimized] target(s) in 17.26s
[INFO] running `Command { std: "docker" "inspect" "abad8b8f58d6ffe1ffdfb227b61313136dd0eacda2163a1feaa7e4a8acda8c09", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-w" "/opt/rustwide/workdir" "--user" "0:0" "abad8b8f58d6ffe1ffdfb227b61313136dd0eacda2163a1feaa7e4a8acda8c09" "/opt/rustwide/cargo-home/bin/cargo" "+1.100.0-beta.1" "test" "--frozen" "--no-run" "--message-format=json" "--release", kill_on_drop: false }`
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling termcolor v1.4.1
[INFO] [stderr]    Compiling aho-corasick v0.7.15
[INFO] [stderr]    Compiling humantime v1.3.0
[INFO] [stderr]    Compiling dotenv v0.15.0
[INFO] [stdout] warning: fields `msg_count` and `mailbox_size` are never read
[INFO] [stdout]    --> src/pop3.rs:346:5
[INFO] [stdout]     |
[INFO] [stdout] 345 | pub struct POP3Status {
[INFO] [stdout]     |            ---------- fields in this struct
[INFO] [stdout] 346 |     msg_count: usize,
[INFO] [stdout]     |     ^^^^^^^^^
[INFO] [stdout] 347 |     mailbox_size: usize,
[INFO] [stdout]     |     ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `POP3Status` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling regex v1.4.6
[INFO] [stderr]    Compiling env_logger v0.7.1
[INFO] [stderr]    Compiling pretty_env_logger v0.4.0
[INFO] [stderr]    Compiling mailme v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: fields `msg_count` and `mailbox_size` are never read
[INFO] [stdout]    --> src/pop3.rs:346:5
[INFO] [stdout]     |
[INFO] [stdout] 345 | pub struct POP3Status {
[INFO] [stdout]     |            ---------- fields in this struct
[INFO] [stdout] 346 |     msg_count: usize,
[INFO] [stdout]     |     ^^^^^^^^^
[INFO] [stdout] 347 |     mailbox_size: usize,
[INFO] [stdout]     |     ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `POP3Status` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `release` profile [optimized] target(s) in 10.48s
[INFO] running `Command { std: "docker" "inspect" "abad8b8f58d6ffe1ffdfb227b61313136dd0eacda2163a1feaa7e4a8acda8c09", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-w" "/opt/rustwide/workdir" "--user" "0:0" "abad8b8f58d6ffe1ffdfb227b61313136dd0eacda2163a1feaa7e4a8acda8c09" "/opt/rustwide/cargo-home/bin/cargo" "+1.100.0-beta.1" "test" "--frozen" "--release", kill_on_drop: false }`
[INFO] [stderr] warning: fields `msg_count` and `mailbox_size` are never read
[INFO] [stderr]    --> src/pop3.rs:346:5
[INFO] [stderr]     |
[INFO] [stderr] 345 | pub struct POP3Status {
[INFO] [stderr]     |            ---------- fields in this struct
[INFO] [stderr] 346 |     msg_count: usize,
[INFO] [stderr]     |     ^^^^^^^^^
[INFO] [stderr] 347 |     mailbox_size: usize,
[INFO] [stderr]     |     ^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `POP3Status` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stderr]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `mailme` (lib) generated 1 warning
[INFO] [stderr] warning: `mailme` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished `release` profile [optimized] target(s) in 0.08s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/release/build/mailme/8ab802d3cca960b8/out/mailme-8ab802d3cca960b8)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test pop3::tests::test_connect ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- pop3::tests::test_connect stdout ----
[INFO] [stdout] 
[INFO] [stdout] thread 'pop3::tests::test_connect' (666) panicked at src/pop3.rs:367:75:
[INFO] [stdout] called `Result::unwrap()` on an `Err` value: ConnectionFailed("failed to lookup address information: Temporary failure in name resolution")
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x5f185e3926b1 - <<std[617be2ca0a6fd877]::sys::backtrace::BacktraceLock>::print::DisplayBacktrace as core[a373ad73a504971]::fmt::Display>::fmt
[INFO] [stdout]    1:     0x5f185e3a7bba - core[a373ad73a504971]::fmt::write
[INFO] [stdout]    2:     0x5f185e396e2c - <alloc[2e1b2a31b91974c5]::vec::Vec<u8> as core[a373ad73a504971]::io::write::Write>::write_fmt
[INFO] [stdout]    3:     0x5f185e36dcd6 - std[617be2ca0a6fd877]::panicking::default_hook::{closure#0}
[INFO] [stdout]    4:     0x5f185e38a739 - std[617be2ca0a6fd877]::panicking::default_hook
[INFO] [stdout]    5:     0x5f185e284c20 - test[aada8e7e76ba119b]::test_main_inner::{closure#0}
[INFO] [stdout]    6:     0x5f185e38a8f2 - std[617be2ca0a6fd877]::panicking::panic_with_hook
[INFO] [stdout]    7:     0x5f185e36dd82 - std[617be2ca0a6fd877]::panicking::panic_handler::{closure#0}
[INFO] [stdout]    8:     0x5f185e366779 - std[617be2ca0a6fd877]::sys::backtrace::__rust_end_short_backtrace::<std[617be2ca0a6fd877]::panicking::panic_handler::{closure#0}, !>
[INFO] [stdout]    9:     0x5f185e36ec1d - __rustc[ea4f61d10b84890b]::rust_begin_unwind
[INFO] [stdout]   10:     0x5f185e3a831c - core[a373ad73a504971]::panicking::panic_fmt
[INFO] [stdout]   11:     0x5f185e3a80f2 - core[a373ad73a504971]::result::unwrap_failed
[INFO] [stdout]   12:     0x5f185e25a984 - mailme[3afc77031182e9b2]::pop3::tests::test_connect::{closure#0}
[INFO] [stdout]   13:     0x5f185e26a38b - <tokio[193604cf04aca429]::park::thread::CachedParkThread>::block_on::<mailme[3afc77031182e9b2]::pop3::tests::test_connect::{closure#0}>
[INFO] [stdout]   14:     0x5f185e26d8cb - <tokio[193604cf04aca429]::runtime::thread_pool::ThreadPool>::block_on::<mailme[3afc77031182e9b2]::pop3::tests::test_connect::{closure#0}>
[INFO] [stdout]   15:     0x5f185e26a0bd - <tokio[193604cf04aca429]::runtime::Runtime>::block_on::<mailme[3afc77031182e9b2]::pop3::tests::test_connect::{closure#0}>
[INFO] [stdout]   16:     0x5f185e273bb9 - <mailme[3afc77031182e9b2]::pop3::tests::test_connect::{closure#0} as core[a373ad73a504971]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]   17:     0x5f185e27806b - test[aada8e7e76ba119b]::__rust_begin_short_backtrace::<core[a373ad73a504971]::result::Result<(), alloc[2e1b2a31b91974c5]::string::String>, fn() -> core[a373ad73a504971]::result::Result<(), alloc[2e1b2a31b91974c5]::string::String>>
[INFO] [stdout]   18:     0x5f185e285245 - test[aada8e7e76ba119b]::run_test::{closure#0}
[INFO] [stdout]   19:     0x5f185e27eb34 - std[617be2ca0a6fd877]::sys::backtrace::__rust_begin_short_backtrace::<test[aada8e7e76ba119b]::run_test::{closure#1}, ()>
[INFO] [stdout]   20:     0x5f185e2882d2 - <std[617be2ca0a6fd877]::thread::lifecycle::spawn_unchecked<test[aada8e7e76ba119b]::run_test::{closure#1}, ()>::{closure#1} as core[a373ad73a504971]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
[INFO] [stdout]   21:     0x5f185e391b6f - <std[617be2ca0a6fd877]::sys::thread::unix::Thread>::new::thread_start
[INFO] [stdout]   22:     0x76b829189dfa - <unknown>
[INFO] [stdout]   23:     0x76b82921d3d4 - clone
[INFO] [stdout]   24:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     pop3::tests::test_connect
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.03s
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass `--lib`
[INFO] running `Command { std: "docker" "inspect" "abad8b8f58d6ffe1ffdfb227b61313136dd0eacda2163a1feaa7e4a8acda8c09", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "abad8b8f58d6ffe1ffdfb227b61313136dd0eacda2163a1feaa7e4a8acda8c09", kill_on_drop: false }`
[INFO] [stdout] abad8b8f58d6ffe1ffdfb227b61313136dd0eacda2163a1feaa7e4a8acda8c09
