[INFO] crate tag_safe 0.2.25 is already in cache
[INFO] checking tag_safe-0.2.25 against master#fdc0011561c6365c596dfd8fa1ef388162bc89c7 for pr-66504-1
[INFO] extracting crate tag_safe 0.2.25 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate tag_safe 0.2.25 on toolchain fdc0011561c6365c596dfd8fa1ef388162bc89c7
[INFO] running `"/workspace/cargo-home/bin/cargo" "+fdc0011561c6365c596dfd8fa1ef388162bc89c7" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate tag_safe 0.2.25
[INFO] finished tweaking crates.io crate tag_safe 0.2.25
[INFO] tweaked toml for crates.io crate tag_safe 0.2.25 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+fdc0011561c6365c596dfd8fa1ef388162bc89c7" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+fdc0011561c6365c596dfd8fa1ef388162bc89c7" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+fdc0011561c6365c596dfd8fa1ef388162bc89c7" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] d9e98a19bc6c1340b1519e8eda57b474d45e45c2315137f6420e02e0fbe396ae
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "d9e98a19bc6c1340b1519e8eda57b474d45e45c2315137f6420e02e0fbe396ae"`
[INFO] [stderr]    Compiling compiletest_rs v0.3.26
[INFO] [stderr]    Compiling tag_safe v0.2.25 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking tester v0.6.0
[INFO] [stderr]     Checking rustfix v0.4.6
[INFO] [stderr] error[E0463]: can't find crate for `syntax`
[INFO] [stderr]   --> src/lib.rs:31:1
[INFO] [stderr]    |
[INFO] [stderr] 31 | extern crate syntax;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^ can't find crate
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0463`.
[INFO] [stderr] error[E0463]: can't find crate for `syntax`
[INFO] [stderr]   --> src/lib.rs:31:1
[INFO] [stderr]    |
[INFO] [stderr] 31 | extern crate syntax;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^ can't find crate
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0463`.
[INFO] [stderr] error: could not compile `tag_safe`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `tag_safe`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "d9e98a19bc6c1340b1519e8eda57b474d45e45c2315137f6420e02e0fbe396ae"`
[INFO] running `"docker" "rm" "-f" "d9e98a19bc6c1340b1519e8eda57b474d45e45c2315137f6420e02e0fbe396ae"`
[INFO] [stdout] d9e98a19bc6c1340b1519e8eda57b474d45e45c2315137f6420e02e0fbe396ae