[INFO] fetching crate cstring 0.0.4...
[INFO] checking cstring-0.0.4 against try#e4dba30b9b475d8750370c4dfb49b6541990904d for pr-71393
[INFO] extracting crate cstring 0.0.4 into /workspace/builds/worker-11/source
[INFO] validating manifest of crates.io crate cstring 0.0.4 on toolchain e4dba30b9b475d8750370c4dfb49b6541990904d
[INFO] running `"/workspace/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate cstring 0.0.4
[INFO] finished tweaking crates.io crate cstring 0.0.4
[INFO] tweaked toml for crates.io crate cstring 0.0.4 written to /workspace/builds/worker-11/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 5b55872d06c11ee34046c87fc777e6c6a6ec3f39f89e871f80d2dd40429b8b2f
[INFO] running `"docker" "start" "-a" "5b55872d06c11ee34046c87fc777e6c6a6ec3f39f89e871f80d2dd40429b8b2f"`
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]     Checking cty v0.2.1
[INFO] [stderr]     Checking cstring v0.0.4 (/opt/rustwide/workdir)
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]    --> src/cstr_core.rs:135:20
[INFO] [stderr]     |
[INFO] [stderr] 135 |             b'\x20'...b'\x7e' => ([c, 0, 0, 0], 1),
[INFO] [stderr]     |                    ^^^ help: use `..=` for an inclusive range
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(ellipsis_inclusive_range_patterns)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]    --> src/cstr_core.rs:146:18
[INFO] [stderr]     |
[INFO] [stderr] 146 |                 0...9 => b'0' + b,
[INFO] [stderr]     |                  ^^^ help: use `..=` for an inclusive range
[INFO] [stderr] 
[INFO] [stderr] error[E0468]: an `extern crate` loading macros must be at the crate root
[INFO] [stderr]   --> src/cstr_core.rs:17:1
[INFO] [stderr]    |
[INFO] [stderr] 17 | extern crate std;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]    --> src/cstr_core.rs:135:20
[INFO] [stderr]     |
[INFO] [stderr] 135 |             b'\x20'...b'\x7e' => ([c, 0, 0, 0], 1),
[INFO] [stderr]     |                    ^^^ help: use `..=` for an inclusive range
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(ellipsis_inclusive_range_patterns)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]    --> src/cstr_core.rs:146:18
[INFO] [stderr]     |
[INFO] [stderr] 146 |                 0...9 => b'0' + b,
[INFO] [stderr]     |                  ^^^ help: use `..=` for an inclusive range
[INFO] [stderr] 
[INFO] [stderr] warning: unused attribute
[INFO] [stderr]   --> src/cstr_core.rs:13:1
[INFO] [stderr]    |
[INFO] [stderr] 13 | #![no_std]
[INFO] [stderr]    | ^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_attributes)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: crate-level attribute should be in the root module
[INFO] [stderr]   --> src/cstr_core.rs:13:1
[INFO] [stderr]    |
[INFO] [stderr] 13 | #![no_std]
[INFO] [stderr]    | ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error; 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0468`.
[INFO] [stderr] warning: 4 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] error: could not compile `cstring`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "5b55872d06c11ee34046c87fc777e6c6a6ec3f39f89e871f80d2dd40429b8b2f"`
[INFO] running `"docker" "rm" "-f" "5b55872d06c11ee34046c87fc777e6c6a6ec3f39f89e871f80d2dd40429b8b2f"`
[INFO] [stdout] 5b55872d06c11ee34046c87fc777e6c6a6ec3f39f89e871f80d2dd40429b8b2f