[INFO] fetching crate fk_std 0.1.1...
[INFO] checking fk_std-0.1.1 against try#55b3f428b4fac6790b1e8492e0b91ff2d80aec7c for pr-77035
[INFO] extracting crate fk_std 0.1.1 into /workspace/builds/worker-10/source
[INFO] validating manifest of crates.io crate fk_std 0.1.1 on toolchain 55b3f428b4fac6790b1e8492e0b91ff2d80aec7c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+55b3f428b4fac6790b1e8492e0b91ff2d80aec7c" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate fk_std 0.1.1
[INFO] finished tweaking crates.io crate fk_std 0.1.1
[INFO] tweaked toml for crates.io crate fk_std 0.1.1 written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] crate crates.io crate fk_std 0.1.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+55b3f428b4fac6790b1e8492e0b91ff2d80aec7c" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+55b3f428b4fac6790b1e8492e0b91ff2d80aec7c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a9909d53a4ef9d5f54ecd5e154658ede08e78d68a8955ac421a18f2b65e6b6d2
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "a9909d53a4ef9d5f54ecd5e154658ede08e78d68a8955ac421a18f2b65e6b6d2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a9909d53a4ef9d5f54ecd5e154658ede08e78d68a8955ac421a18f2b65e6b6d2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a9909d53a4ef9d5f54ecd5e154658ede08e78d68a8955ac421a18f2b65e6b6d2", kill_on_drop: false }`
[INFO] [stdout] a9909d53a4ef9d5f54ecd5e154658ede08e78d68a8955ac421a18f2b65e6b6d2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+55b3f428b4fac6790b1e8492e0b91ff2d80aec7c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6c3de0691f7caec12b8f054927bf07414221bab310fc8bad9931086748b4d60d
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "6c3de0691f7caec12b8f054927bf07414221bab310fc8bad9931086748b4d60d", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking fk_std v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: type `c_char` should have an upper camel case name
[INFO] [stdout]  --> src/types.rs:1:10
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub type c_char = i8;
[INFO] [stdout]   |          ^^^^^^ help: convert the identifier to upper camel case: `CChar`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_camel_case_types)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `c_int` should have an upper camel case name
[INFO] [stdout]  --> src/types.rs:2:10
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub type c_int = i32;
[INFO] [stdout]   |          ^^^^^ help: convert the identifier to upper camel case: `CInt`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `fmt::format`
[INFO] [stdout]  --> src/strings.rs:1:13
[INFO] [stdout]   |
[INFO] [stdout] 1 | use alloc::{fmt::format, string::String};
[INFO] [stdout]   |             ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `alloc` has been stable since 1.36.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/lib.rs:3:24
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![feature(lang_items, alloc)]
[INFO] [stdout]   |                        ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `c_char` should have an upper camel case name
[INFO] [stdout]  --> src/types.rs:1:10
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub type c_char = i8;
[INFO] [stdout]   |          ^^^^^^ help: convert the identifier to upper camel case: `CChar`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_camel_case_types)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `c_int` should have an upper camel case name
[INFO] [stdout]  --> src/types.rs:2:10
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub type c_int = i32;
[INFO] [stdout]   |          ^^^^^ help: convert the identifier to upper camel case: `CInt`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `fmt::format`
[INFO] [stdout]  --> src/strings.rs:1:13
[INFO] [stdout]   |
[INFO] [stdout] 1 | use alloc::{fmt::format, string::String};
[INFO] [stdout]   |             ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `alloc` has been stable since 1.36.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/lib.rs:3:24
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![feature(lang_items, alloc)]
[INFO] [stdout]   |                        ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.80s
[INFO] running `Command { std: "docker" "inspect" "6c3de0691f7caec12b8f054927bf07414221bab310fc8bad9931086748b4d60d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6c3de0691f7caec12b8f054927bf07414221bab310fc8bad9931086748b4d60d", kill_on_drop: false }`
[INFO] [stdout] 6c3de0691f7caec12b8f054927bf07414221bab310fc8bad9931086748b4d60d