[INFO] crate enforce 0.0.1 is already in cache
[INFO] testing enforce-0.0.1 against 1.44.0 for beta-1.45-1
[INFO] extracting crate enforce 0.0.1 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate enforce 0.0.1 on toolchain 1.44.0
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate enforce 0.0.1
[INFO] finished tweaking crates.io crate enforce 0.0.1
[INFO] tweaked toml for crates.io crate enforce 0.0.1 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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=warn" "-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" "+1.44.0" "build" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 75e7795d3b60ee48959f5da61b5f4e6c2c2a08215a92d6d72ce0dfd08c2c201d
[INFO] running `"docker" "start" "-a" "75e7795d3b60ee48959f5da61b5f4e6c2c2a08215a92d6d72ce0dfd08c2c201d"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling enforce v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr] error: expected identifier, found keyword `mod`
[INFO] [stderr]  --> src/lib.rs:8:16
[INFO] [stderr]   |
[INFO] [stderr] 8 | use std::fmt::{mod, Show};
[INFO] [stderr]   |                ^^^ expected identifier, found keyword
[INFO] [stderr]   |
[INFO] [stderr] help: you can escape reserved keywords to use them as identifiers
[INFO] [stderr]   |
[INFO] [stderr] 8 | use std::fmt::{r#mod, Show};
[INFO] [stderr]   |                ^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: non-builtin inner attributes are unstable
[INFO] [stderr]  --> src/lib.rs:2:1
[INFO] [stderr]   |
[INFO] [stderr] 2 | #![license = "MIT"]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: see issue #54726 <https://github.com/rust-lang/rust/issues/54726> for more information
[INFO] [stderr] 
[INFO] [stderr] error[E0432]: unresolved imports `std::fmt::r#mod`, `std::fmt::Show`
[INFO] [stderr]  --> src/lib.rs:8:16
[INFO] [stderr]   |
[INFO] [stderr] 8 | use std::fmt::{mod, Show};
[INFO] [stderr]   |                ^^^  ^^^^ no `Show` in `fmt`
[INFO] [stderr]   |                |
[INFO] [stderr]   |                no `r#mod` in `fmt`
[INFO] [stderr] 
[INFO] [stderr] error: cannot find attribute `license` in this scope
[INFO] [stderr]  --> src/lib.rs:2:4
[INFO] [stderr]   |
[INFO] [stderr] 2 | #![license = "MIT"]
[INFO] [stderr]   |    ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: cannot find attribute `deriving` in this scope
[INFO] [stderr]   --> src/lib.rs:23:3
[INFO] [stderr]    |
[INFO] [stderr] 23 | #[deriving(PartialEq)]
[INFO] [stderr]    |   ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0433]: failed to resolve: use of undeclared type or module `fmt`
[INFO] [stderr]   --> src/lib.rs:39:27
[INFO] [stderr]    |
[INFO] [stderr] 39 |     fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
[INFO] [stderr]    |                           ^^^ use of undeclared type or module `fmt`
[INFO] [stderr] 
[INFO] [stderr] error[E0433]: failed to resolve: use of undeclared type or module `fmt`
[INFO] [stderr]   --> src/lib.rs:39:46
[INFO] [stderr]    |
[INFO] [stderr] 39 |     fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
[INFO] [stderr]    |                                              ^^^ use of undeclared type or module `fmt`
[INFO] [stderr] 
[INFO] [stderr] error[E0412]: cannot find type `uint` in this scope
[INFO] [stderr]   --> src/lib.rs:32:34
[INFO] [stderr]    |
[INFO] [stderr] 32 |     pub location: (&'static str, uint),
[INFO] [stderr]    |                                  ^^^^ not found in this scope
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stderr]  --> src/lib.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(macro_rules)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 9 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0412, E0432, E0433, E0554, E0658.
[INFO] [stderr] For more information about an error, try `rustc --explain E0412`.
[INFO] [stderr] error: could not compile `enforce`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "75e7795d3b60ee48959f5da61b5f4e6c2c2a08215a92d6d72ce0dfd08c2c201d"`
[INFO] running `"docker" "rm" "-f" "75e7795d3b60ee48959f5da61b5f4e6c2c2a08215a92d6d72ce0dfd08c2c201d"`
[INFO] [stdout] 75e7795d3b60ee48959f5da61b5f4e6c2c2a08215a92d6d72ce0dfd08c2c201d