[INFO] cloning repository https://github.com/AndreasOM/oml-mailbox
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/AndreasOM/oml-mailbox" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAndreasOM%2Foml-mailbox", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAndreasOM%2Foml-mailbox'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e59ef1d7e25ef87cad576ff22c694a35a746a04b
[INFO] checking AndreasOM/oml-mailbox against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAndreasOM%2Foml-mailbox" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/AndreasOM/oml-mailbox on toolchain ceab6128fa48a616bfd3e3adf4bc80133b8ee223
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/AndreasOM/oml-mailbox
[INFO] finished tweaking git repo https://github.com/AndreasOM/oml-mailbox
[INFO] tweaked toml for git repo https://github.com/AndreasOM/oml-mailbox written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/AndreasOM/oml-mailbox 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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded chrono v0.4.35
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8b68a35e8e2274b09342719dc5fe5edd2c624264e4062da44c917c063e95774c
[INFO] running `Command { std: "docker" "start" "-a" "8b68a35e8e2274b09342719dc5fe5edd2c624264e4062da44c917c063e95774c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8b68a35e8e2274b09342719dc5fe5edd2c624264e4062da44c917c063e95774c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8b68a35e8e2274b09342719dc5fe5edd2c624264e4062da44c917c063e95774c", kill_on_drop: false }`
[INFO] [stdout] 8b68a35e8e2274b09342719dc5fe5edd2c624264e4062da44c917c063e95774c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 851fd13a1a43a6eabe910d10c2d7bec6aae9cf51754619fb4af9963b1fe72072
[INFO] running `Command { std: "docker" "start" "-a" "851fd13a1a43a6eabe910d10c2d7bec6aae9cf51754619fb4af9963b1fe72072", kill_on_drop: false }`
[INFO] [stderr]     Checking once_cell v1.19.0
[INFO] [stderr]     Checking smallvec v1.13.1
[INFO] [stderr]     Checking log v0.4.21
[INFO] [stderr]     Checking pin-project-lite v0.2.13
[INFO] [stderr]     Checking regex-syntax v0.8.2
[INFO] [stderr]     Checking regex-syntax v0.6.29
[INFO] [stderr]     Checking overload v0.1.1
[INFO] [stderr]    Compiling parking_lot_core v0.9.9
[INFO] [stderr]     Checking sharded-slab v0.1.7
[INFO] [stderr]    Compiling lock_api v0.4.11
[INFO] [stderr]    Compiling backtrace v0.3.69
[INFO] [stderr]    Compiling num-traits v0.2.18
[INFO] [stderr]    Compiling eyre v0.6.12
[INFO] [stderr]     Checking scopeguard v1.2.0
[INFO] [stderr]    Compiling syn v2.0.52
[INFO] [stderr]     Checking gimli v0.28.1
[INFO] [stderr]     Checking memchr v2.7.1
[INFO] [stderr]     Checking adler v1.0.2
[INFO] [stderr]     Checking nu-ansi-term v0.46.0
[INFO] [stderr]     Checking env_filter v0.1.0
[INFO] [stderr]     Checking tracing-core v0.1.32
[INFO] [stderr]     Checking thread_local v1.1.8
[INFO] [stderr]     Checking miniz_oxide v0.7.2
[INFO] [stderr]    Compiling serde_json v1.0.114
[INFO] [stderr]     Checking indenter v0.3.3
[INFO] [stderr]    Compiling async-trait v0.1.77
[INFO] [stderr]     Checking owo-colors v3.5.0
[INFO] [stderr]     Checking rustc-demangle v0.1.23
[INFO] [stderr]     Checking env_logger v0.11.3
[INFO] [stderr]     Checking socket2 v0.5.6
[INFO] [stderr]     Checking num_cpus v1.16.0
[INFO] [stderr]     Checking mio v0.8.11
[INFO] [stderr]     Checking signal-hook-registry v1.4.1
[INFO] [stderr]     Checking itoa v1.0.10
[INFO] [stderr]     Checking iana-time-zone v0.1.60
[INFO] [stderr]     Checking bytes v1.5.0
[INFO] [stderr]     Checking object v0.32.2
[INFO] [stderr]     Checking tracing-log v0.2.0
[INFO] [stderr]     Checking base64 v0.22.0
[INFO] [stderr]     Checking parking_lot v0.12.1
[INFO] [stderr]     Checking regex-automata v0.4.6
[INFO] [stderr]     Checking regex-automata v0.1.10
[INFO] [stderr]     Checking addr2line v0.21.0
[INFO] [stderr]     Checking matchers v0.1.0
[INFO] [stderr]     Checking regex v1.10.3
[INFO] [stderr]    Compiling tracing-attributes v0.1.27
[INFO] [stderr]    Compiling serde_derive v1.0.197
[INFO] [stderr]    Compiling test-log-macros v0.2.15
[INFO] [stderr]    Compiling tokio-macros v2.2.0
[INFO] [stderr]     Checking tokio v1.36.0
[INFO] [stderr]     Checking tracing v0.1.40
[INFO] [stderr]     Checking tracing-subscriber v0.3.18
[INFO] [stderr]     Checking tracing-error v0.2.0
[INFO] [stderr]     Checking test-log v0.2.15
[INFO] [stderr]     Checking color-spantrace v0.2.1
[INFO] [stderr]     Checking color-eyre v0.6.3
[INFO] [stderr]     Checking serde v1.0.197
[INFO] [stderr]     Checking chrono v0.4.35
[INFO] [stderr]     Checking oml-mailbox v0.1.2-dev (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `chrono::DateTime`
[INFO] [stdout]  --> src/mailbox.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use chrono::DateTime;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `chrono::Utc`
[INFO] [stdout]  --> src/mailbox.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use chrono::Utc;
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `chrono::DateTime`
[INFO] [stdout]  --> src/mailbox.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use chrono::DateTime;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `chrono::Utc`
[INFO] [stdout]  --> src/mailbox.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use chrono::Utc;
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `serde::Deserialize`
[INFO] [stdout]  --> src/mailbox.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use serde::Deserialize;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `serde::Serialize`
[INFO] [stdout]  --> src/mailbox.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use serde::Serialize;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `serde::Deserialize`
[INFO] [stdout]  --> src/mailbox.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use serde::Deserialize;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `serde::Serialize`
[INFO] [stdout]  --> src/mailbox.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use serde::Serialize;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 13.67s
[INFO] running `Command { std: "docker" "inspect" "851fd13a1a43a6eabe910d10c2d7bec6aae9cf51754619fb4af9963b1fe72072", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "851fd13a1a43a6eabe910d10c2d7bec6aae9cf51754619fb4af9963b1fe72072", kill_on_drop: false }`
[INFO] [stdout] 851fd13a1a43a6eabe910d10c2d7bec6aae9cf51754619fb4af9963b1fe72072