[INFO] cloning repository https://github.com/danielinux/picotcp-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/danielinux/picotcp-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdanielinux%2Fpicotcp-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdanielinux%2Fpicotcp-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a94c6f5e99e86858d1cab800b3b203b71991e6f1
[INFO] checking danielinux/picotcp-rust/a94c6f5e99e86858d1cab800b3b203b71991e6f1 against eca445e5ae4a6679cc27d3a09106ce245e13a5a6 for pr-162478
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdanielinux%2Fpicotcp-rust" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/danielinux/picotcp-rust
[INFO] finished tweaking git repo https://github.com/danielinux/picotcp-rust
[INFO] tweaked toml for git repo https://github.com/danielinux/picotcp-rust written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/danielinux/picotcp-rust on toolchain eca445e5ae4a6679cc27d3a09106ce245e13a5a6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+eca445e5ae4a6679cc27d3a09106ce245e13a5a6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/danielinux/picotcp-rust 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" "+eca445e5ae4a6679cc27d3a09106ce245e13a5a6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: Cargo.toml: path `src/picotcp_rs.rs` was erroneously implicitly accepted for binary `picotcp_rs`,
[INFO] [stderr] please set bin.path in Cargo.toml
[INFO] [stderr] warning: Cargo.toml: `package.edition` is unspecified, defaulting to `2015` while the latest is `2024`
[INFO] [stderr] warning: binary `picotcp_rs` should have a kebab-case name
[INFO] [stderr]   |
[INFO] [stderr] 1 | /workspace/builds/worker-4-tc1/source/target/.../picotcp_rs
[INFO] [stderr]   |                                                  ^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `cargo::non_kebab_case_bins` is set to `warn` by default
[INFO] [stderr] help: to change the binary name to `picotcp-rs`, convert `bin.name`
[INFO] [stderr]  --> Cargo.toml:2:8
[INFO] [stderr]   |
[INFO] [stderr] 2 - name = "picotcp_rs"
[INFO] [stderr] 2 + name = "picotcp-rs"
[INFO] [stderr]   |
[INFO] [stderr] warning: `picotcp_rs` (manifest) generated 3 warnings
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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@sha256:8683fc1fc2eb5c9ac98e0d076ab094b2ffac7f99da555d2b6a2e27f346de2ec7" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] f7e4ce1efeb55df58a2c26ef251ac50994c49eea1af26207a904b7918fb27b9a
[INFO] running `Command { std: "docker" "start" "f7e4ce1efeb55df58a2c26ef251ac50994c49eea1af26207a904b7918fb27b9a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f7e4ce1efeb55df58a2c26ef251ac50994c49eea1af26207a904b7918fb27b9a", 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" "f7e4ce1efeb55df58a2c26ef251ac50994c49eea1af26207a904b7918fb27b9a" "/opt/rustwide/cargo-home/bin/cargo" "+eca445e5ae4a6679cc27d3a09106ce245e13a5a6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f7e4ce1efeb55df58a2c26ef251ac50994c49eea1af26207a904b7918fb27b9a", 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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-w" "/opt/rustwide/workdir" "--user" "0:0" "f7e4ce1efeb55df58a2c26ef251ac50994c49eea1af26207a904b7918fb27b9a" "/opt/rustwide/cargo-home/bin/cargo" "+eca445e5ae4a6679cc27d3a09106ce245e13a5a6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] warning: Cargo.toml: path `src/picotcp_rs.rs` was erroneously implicitly accepted for binary `picotcp_rs`,
[INFO] [stderr] please set bin.path in Cargo.toml
[INFO] [stderr] warning: Cargo.toml: `package.edition` is unspecified, defaulting to `2015` while the latest is `2024`
[INFO] [stderr] warning: binary `picotcp_rs` should have a kebab-case name
[INFO] [stderr]   |
[INFO] [stderr] 1 | /opt/rustwide/target/.../picotcp_rs
[INFO] [stderr]   |                          ^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `cargo::non_kebab_case_bins` is set to `warn` by default
[INFO] [stderr] help: to change the binary name to `picotcp-rs`, convert `bin.name`
[INFO] [stderr]  --> Cargo.toml:2:8
[INFO] [stderr]   |
[INFO] [stderr] 2 - name = "picotcp_rs"
[INFO] [stderr] 2 + name = "picotcp-rs"
[INFO] [stderr]   |
[INFO] [stderr] warning: `picotcp_rs` (manifest) generated 3 warnings
[INFO] [stderr]     Checking picotcp_rs v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0432]: unresolved import `std::mem::to_be32`
[INFO] [stdout]  --> src/picotcp_rs.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::mem::to_be32;
[INFO] [stdout]   |     ^^^^^^^^^^-------
[INFO] [stdout]   |               |
[INFO] [stdout]   |               no `to_be32` in `mem`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `std::io::Timer`
[INFO] [stdout]  --> src/picotcp_rs.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::io::Timer;
[INFO] [stdout]   |     ^^^^^^^^^-----
[INFO] [stdout]   |              |
[INFO] [stdout]   |              no `Timer` in `io`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find attribute `packed` in this scope
[INFO] [stdout]   --> src/picotcp_rs.rs:10:3
[INFO] [stdout]    |
[INFO] [stdout] 10 | #[packed]
[INFO] [stdout]    |   ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: a built-in attribute with a similar name exists
[INFO] [stdout]    |
[INFO] [stdout] 10 - #[packed]
[INFO] [stdout] 10 + #[naked]
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0405]: cannot find trait `Show` in module `fmt`
[INFO] [stdout]   --> src/picotcp_rs.rs:15:11
[INFO] [stdout]    |
[INFO] [stdout] 15 | impl fmt::Show for pico_ip4 {
[INFO] [stdout]    |           ^^^^ not found in `fmt`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `pico_ip4` should have an upper camel case name
[INFO] [stdout]   --> src/picotcp_rs.rs:11:12
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub struct pico_ip4 {
[INFO] [stdout]    |            ^^^^^^^^ help: convert the identifier to upper camel case: `PicoIp4`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_camel_case_types)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` declarations without an explicit ABI are deprecated
[INFO] [stdout]   --> src/picotcp_rs.rs:49:1
[INFO] [stdout]    |
[INFO] [stdout] 49 | extern {
[INFO] [stdout]    | ^^^^^^ help: explicitly specify the "C" ABI: `extern "C"`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(missing_abi)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` declarations without an explicit ABI are deprecated
[INFO] [stdout]   --> src/picotcp_rs.rs:54:1
[INFO] [stdout]    |
[INFO] [stdout] 54 | extern {
[INFO] [stdout]    | ^^^^^^ help: explicitly specify the "C" ABI: `extern "C"`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature `rustc_private`: this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via `Cargo.toml` instead?
[INFO] [stdout]  --> src/picotcp_rs.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | extern crate libc;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: see issue #27812 <https://github.com/rust-lang/rust/issues/27812> for more information
[INFO] [stdout]   = help: add `#![feature(rustc_private)]` to the crate attributes to enable
[INFO] [stdout]   = note: this compiler was built on 2026-09-09; consider upgrading it if it is out of date
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature `rustc_private`: this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via `Cargo.toml` instead?
[INFO] [stdout]  --> src/picotcp_rs.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use libc::c_int;
[INFO] [stdout]   |     ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: see issue #27812 <https://github.com/rust-lang/rust/issues/27812> for more information
[INFO] [stdout]   = help: add `#![feature(rustc_private)]` to the crate attributes to enable
[INFO] [stdout]   = note: this compiler was built on 2026-09-09; consider upgrading it if it is out of date
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature `rustc_private`: this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via `Cargo.toml` instead?
[INFO] [stdout]  --> src/picotcp_rs.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use libc::c_char;
[INFO] [stdout]   |     ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: see issue #27812 <https://github.com/rust-lang/rust/issues/27812> for more information
[INFO] [stdout]   = help: add `#![feature(rustc_private)]` to the crate attributes to enable
[INFO] [stdout]   = note: this compiler was built on 2026-09-09; consider upgrading it if it is out of date
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `std::mem::to_be32`
[INFO] [stdout]  --> src/picotcp_rs.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::mem::to_be32;
[INFO] [stdout]   |     ^^^^^^^^^^-------
[INFO] [stdout]   |               |
[INFO] [stdout]   |               no `to_be32` in `mem`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0405, E0432, E0658.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0405`.
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `std::io::Timer`
[INFO] [stdout]  --> src/picotcp_rs.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::io::Timer;
[INFO] [stdout]   |     ^^^^^^^^^-----
[INFO] [stdout]   |              |
[INFO] [stdout]   |              no `Timer` in `io`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find attribute `packed` in this scope
[INFO] [stdout]   --> src/picotcp_rs.rs:10:3
[INFO] [stdout]    |
[INFO] [stdout] 10 | #[packed]
[INFO] [stdout]    |   ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: a built-in attribute with a similar name exists
[INFO] [stdout]    |
[INFO] [stdout] 10 - #[packed]
[INFO] [stdout] 10 + #[naked]
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `picotcp_rs` (bin "picotcp_rs") due to 7 previous errors; 3 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error[E0405]: cannot find trait `Show` in module `fmt`
[INFO] [stdout]   --> src/picotcp_rs.rs:15:11
[INFO] [stdout]    |
[INFO] [stdout] 15 | impl fmt::Show for pico_ip4 {
[INFO] [stdout]    |           ^^^^ not found in `fmt`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `pico_ip4` should have an upper camel case name
[INFO] [stdout]   --> src/picotcp_rs.rs:11:12
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub struct pico_ip4 {
[INFO] [stdout]    |            ^^^^^^^^ help: convert the identifier to upper camel case: `PicoIp4`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_camel_case_types)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` declarations without an explicit ABI are deprecated
[INFO] [stdout]   --> src/picotcp_rs.rs:49:1
[INFO] [stdout]    |
[INFO] [stdout] 49 | extern {
[INFO] [stdout]    | ^^^^^^ help: explicitly specify the "C" ABI: `extern "C"`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(missing_abi)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` declarations without an explicit ABI are deprecated
[INFO] [stdout]   --> src/picotcp_rs.rs:54:1
[INFO] [stdout]    |
[INFO] [stdout] 54 | extern {
[INFO] [stdout]    | ^^^^^^ help: explicitly specify the "C" ABI: `extern "C"`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature `rustc_private`: this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via `Cargo.toml` instead?
[INFO] [stdout]  --> src/picotcp_rs.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | extern crate libc;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: see issue #27812 <https://github.com/rust-lang/rust/issues/27812> for more information
[INFO] [stdout]   = help: add `#![feature(rustc_private)]` to the crate attributes to enable
[INFO] [stdout]   = note: this compiler was built on 2026-09-09; consider upgrading it if it is out of date
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature `rustc_private`: this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via `Cargo.toml` instead?
[INFO] [stdout]  --> src/picotcp_rs.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use libc::c_int;
[INFO] [stdout]   |     ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: see issue #27812 <https://github.com/rust-lang/rust/issues/27812> for more information
[INFO] [stdout]   = help: add `#![feature(rustc_private)]` to the crate attributes to enable
[INFO] [stdout]   = note: this compiler was built on 2026-09-09; consider upgrading it if it is out of date
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature `rustc_private`: this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via `Cargo.toml` instead?
[INFO] [stdout]  --> src/picotcp_rs.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use libc::c_char;
[INFO] [stdout]   |     ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: see issue #27812 <https://github.com/rust-lang/rust/issues/27812> for more information
[INFO] [stdout]   = help: add `#![feature(rustc_private)]` to the crate attributes to enable
[INFO] [stdout]   = note: this compiler was built on 2026-09-09; consider upgrading it if it is out of date
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0405, E0432, E0658.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0405`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `picotcp_rs` (bin "picotcp_rs" test) due to 7 previous errors; 3 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "f7e4ce1efeb55df58a2c26ef251ac50994c49eea1af26207a904b7918fb27b9a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f7e4ce1efeb55df58a2c26ef251ac50994c49eea1af26207a904b7918fb27b9a", kill_on_drop: false }`
[INFO] [stdout] f7e4ce1efeb55df58a2c26ef251ac50994c49eea1af26207a904b7918fb27b9a
