[INFO] fetching crate featherweight-guest 0.4.0...
[INFO] checking featherweight-guest-0.4.0 against 3154cc1a3e6424e44f438a95007d043ed5ceaaf6 for pr-133502-30
[INFO] extracting crate featherweight-guest 0.4.0 into /workspace/builds/worker-0-tc2/source
[INFO] started tweaking crates.io crate featherweight-guest 0.4.0
[INFO] finished tweaking crates.io crate featherweight-guest 0.4.0
[INFO] tweaked toml for crates.io crate featherweight-guest 0.4.0 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate featherweight-guest 0.4.0 on toolchain 3154cc1a3e6424e44f438a95007d043ed5ceaaf6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3154cc1a3e6424e44f438a95007d043ed5ceaaf6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate featherweight-guest 0.4.0 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" "+3154cc1a3e6424e44f438a95007d043ed5ceaaf6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 9acf3ac24f210d178d52df1bf368243a7d6c4baffcddadf4cdf38db7801347ab
[INFO] running `Command { std: "docker" "start" "9acf3ac24f210d178d52df1bf368243a7d6c4baffcddadf4cdf38db7801347ab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9acf3ac24f210d178d52df1bf368243a7d6c4baffcddadf4cdf38db7801347ab", 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" "9acf3ac24f210d178d52df1bf368243a7d6c4baffcddadf4cdf38db7801347ab" "/opt/rustwide/cargo-home/bin/cargo" "+3154cc1a3e6424e44f438a95007d043ed5ceaaf6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9acf3ac24f210d178d52df1bf368243a7d6c4baffcddadf4cdf38db7801347ab", 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" "9acf3ac24f210d178d52df1bf368243a7d6c4baffcddadf4cdf38db7801347ab" "/opt/rustwide/cargo-home/bin/cargo" "+3154cc1a3e6424e44f438a95007d043ed5ceaaf6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.103
[INFO] [stderr]    Compiling quote v1.0.42
[INFO] [stderr]    Compiling unicode-ident v1.0.24
[INFO] [stderr]    Compiling serde_core v1.0.228
[INFO] [stderr]    Compiling serde_json v1.0.146
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]     Checking itoa v1.0.16
[INFO] [stderr]     Checking ryu v1.0.21
[INFO] [stderr]     Checking memchr v2.7.6
[INFO] [stderr]    Compiling syn v2.0.111
[INFO] [stderr]    Compiling serde_derive v1.0.228
[INFO] [stderr]     Checking featherweight-guest v0.4.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: suspicious definition of the runtime `read` symbol used by the standard library
[INFO] [stdout]    --> src/lib.rs:122:9
[INFO] [stdout]     |
[INFO] [stdout] 122 |         fn read(path_ptr: *const u8, path_len: i32, ret_ptr: *mut Ret) -> i32;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected `unsafe extern "C" fn(i32, *mut c_void, usize) -> isize` (for the current target)
[INFO] [stdout]                found `unsafe extern "C" fn(*const u8, i32, *mut Ret) -> i32`
[INFO] [stdout]     = help: either fix the signature or remove any attributes like `#[unsafe(no_mangle)]`, `#[unsafe(export_name = "read")]`, or `#[link_name = "read"]`
[INFO] [stdout]     = help: allow this lint if the signature is compatible
[INFO] [stdout]     = note: `#[warn(suspicious_runtime_symbol_definitions)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: suspicious definition of the runtime `read` symbol used by the standard library
[INFO] [stdout]    --> src/lib.rs:122:9
[INFO] [stdout]     |
[INFO] [stdout] 122 |         fn read(path_ptr: *const u8, path_len: i32, ret_ptr: *mut Ret) -> i32;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected `unsafe extern "C" fn(i32, *mut c_void, usize) -> isize` (for the current target)
[INFO] [stdout]                found `unsafe extern "C" fn(*const u8, i32, *mut Ret) -> i32`
[INFO] [stdout]     = help: either fix the signature or remove any attributes like `#[unsafe(no_mangle)]`, `#[unsafe(export_name = "read")]`, or `#[link_name = "read"]`
[INFO] [stdout]     = help: allow this lint if the signature is compatible
[INFO] [stdout]     = note: `#[warn(suspicious_runtime_symbol_definitions)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: invalid definition of the runtime `write` symbol used by the standard library
[INFO] [stdout]    --> src/lib.rs:123:9
[INFO] [stdout]     |
[INFO] [stdout] 123 | /         fn write(
[INFO] [stdout] 124 | |             path_ptr: *const u8,
[INFO] [stdout] 125 | |             path_len: i32,
[INFO] [stdout] 126 | |             data_ptr: *const u8,
[INFO] [stdout] 127 | |             data_len: i32,
[INFO] [stdout] 128 | |             ret_ptr: *mut Ret,
[INFO] [stdout] 129 | |         ) -> i32;
[INFO] [stdout]     | |_________________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected `unsafe extern "C" fn(i32, *const c_void, usize) -> isize` (for the current target)
[INFO] [stdout]                found `unsafe extern "C" fn(*const u8, i32, *const u8, i32, *mut Ret) -> i32`
[INFO] [stdout]     = help: either fix the signature or remove any attributes like `#[unsafe(no_mangle)]`, `#[unsafe(export_name = "write")]`, or `#[link_name = "write"]`
[INFO] [stdout]     = note: `#[deny(invalid_runtime_symbol_definitions)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: invalid definition of the runtime `write` symbol used by the standard library
[INFO] [stdout]    --> src/lib.rs:123:9
[INFO] [stdout]     |
[INFO] [stdout] 123 | /         fn write(
[INFO] [stdout] 124 | |             path_ptr: *const u8,
[INFO] [stdout] 125 | |             path_len: i32,
[INFO] [stdout] 126 | |             data_ptr: *const u8,
[INFO] [stdout] 127 | |             data_len: i32,
[INFO] [stdout] 128 | |             ret_ptr: *mut Ret,
[INFO] [stdout] 129 | |         ) -> i32;
[INFO] [stdout]     | |_________________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected `unsafe extern "C" fn(i32, *const c_void, usize) -> isize` (for the current target)
[INFO] [stdout]                found `unsafe extern "C" fn(*const u8, i32, *const u8, i32, *mut Ret) -> i32`
[INFO] [stdout]     = help: either fix the signature or remove any attributes like `#[unsafe(no_mangle)]`, `#[unsafe(export_name = "write")]`, or `#[link_name = "write"]`
[INFO] [stdout]     = note: `#[deny(invalid_runtime_symbol_definitions)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `featherweight-guest` (lib) due to 1 previous error; 1 warning emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `featherweight-guest` (lib test) due to 1 previous error; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "9acf3ac24f210d178d52df1bf368243a7d6c4baffcddadf4cdf38db7801347ab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9acf3ac24f210d178d52df1bf368243a7d6c4baffcddadf4cdf38db7801347ab", kill_on_drop: false }`
[INFO] [stdout] 9acf3ac24f210d178d52df1bf368243a7d6c4baffcddadf4cdf38db7801347ab
