[INFO] fetching crate libgitmask 0.1.0...
[INFO] testing libgitmask-0.1.0 against 1.44.0 for beta-1.45-1
[INFO] extracting crate libgitmask 0.1.0 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate libgitmask 0.1.0 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 libgitmask 0.1.0
[INFO] finished tweaking crates.io crate libgitmask 0.1.0
[INFO] tweaked toml for crates.io crate libgitmask 0.1.0 written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[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-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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] 55c00a34d4ec9ed36052bcc3fa84903a4812b74468155563610d1c3aac4b9fd3
[INFO] running `"docker" "start" "-a" "55c00a34d4ec9ed36052bcc3fa84903a4812b74468155563610d1c3aac4b9fd3"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling pkg-config v0.3.17
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling linked-hash-map v0.5.3
[INFO] [stderr]    Compiling fallible-iterator v0.2.0
[INFO] [stderr]    Compiling rustc-serialize v0.3.24
[INFO] [stderr]    Compiling fallible-streaming-iterator v0.1.9
[INFO] [stderr]    Compiling vergen v3.1.0
[INFO] [stderr]    Compiling lru-cache v0.1.2
[INFO] [stderr]    Compiling barnacl_sys v0.1.1
[INFO] [stderr]    Compiling libsqlite3-sys v0.18.0
[INFO] [stderr]    Compiling libgitmask v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] error[E0433]: failed to resolve: use of undeclared type or module `Flags`
[INFO] [stderr]  --> build.rs:7:21
[INFO] [stderr]   |
[INFO] [stderr] 7 |     let mut flags = Flags::all();
[INFO] [stderr]   |                     ^^^^^ use of undeclared type or module `Flags`
[INFO] [stderr] 
[INFO] [stderr] error[E0425]: cannot find value `NOW` in this scope
[INFO] [stderr]  --> build.rs:8:18
[INFO] [stderr]   |
[INFO] [stderr] 8 |     flags.toggle(NOW);
[INFO] [stderr]   |                  ^^^ not found in this scope
[INFO] [stderr] 
[INFO] [stderr] error[E0423]: expected function, found crate `vergen`
[INFO] [stderr]  --> build.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 |     vergen(flags);
[INFO] [stderr]   |     ^^^^^^ not a function
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `vergen::*`
[INFO] [stderr]  --> build.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use vergen::*;
[INFO] [stderr]   |     ^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 3 previous errors; 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0423, E0425, E0433.
[INFO] [stderr] For more information about an error, try `rustc --explain E0423`.
[INFO] [stderr] error: could not compile `libgitmask`.
[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" "55c00a34d4ec9ed36052bcc3fa84903a4812b74468155563610d1c3aac4b9fd3"`
[INFO] running `"docker" "rm" "-f" "55c00a34d4ec9ed36052bcc3fa84903a4812b74468155563610d1c3aac4b9fd3"`
[INFO] [stdout] 55c00a34d4ec9ed36052bcc3fa84903a4812b74468155563610d1c3aac4b9fd3