[INFO] updating cached repository https://github.com/kwyse/scintillis
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] cb4d6342f1316d8e36d6468e5d7e7cb03d89d635
[INFO] checking kwyse/scintillis against master#fdc0011561c6365c596dfd8fa1ef388162bc89c7 for pr-66504-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkwyse%2Fscintillis" "/workspace/builds/worker-12/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-12/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/kwyse/scintillis on toolchain fdc0011561c6365c596dfd8fa1ef388162bc89c7
[INFO] running `"/workspace/cargo-home/bin/cargo" "+fdc0011561c6365c596dfd8fa1ef388162bc89c7" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/kwyse/scintillis
[INFO] finished tweaking git repo https://github.com/kwyse/scintillis
[INFO] tweaked toml for git repo https://github.com/kwyse/scintillis written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate git repo https://github.com/kwyse/scintillis already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+fdc0011561c6365c596dfd8fa1ef388162bc89c7" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 7c3ac06fa48162c83314114bcfd91ef9b5eb9369b34a44da8acf2290d8e7fc9f
[INFO] running `"docker" "start" "-a" "7c3ac06fa48162c83314114bcfd91ef9b5eb9369b34a44da8acf2290d8e7fc9f"`
[INFO] [stderr]    Compiling quote v0.3.5
[INFO] [stderr]     Checking serde v0.8.17
[INFO] [stderr]     Checking rustc-demangle v0.1.2
[INFO] [stderr]    Compiling backtrace-sys v0.1.4
[INFO] [stderr]     Checking clap v2.17.1
[INFO] [stderr]    Compiling glium v0.15.0
[INFO] [stderr]    Compiling target_build_utils v0.1.2
[INFO] [stderr]    Compiling syn v0.9.2
[INFO] [stderr]     Checking backtrace v0.2.3
[INFO] [stderr]    Compiling libloading v0.3.1
[INFO] [stderr]    Compiling serde_codegen_internals v0.10.0
[INFO] [stderr]    Compiling post-expansion v0.1.0
[INFO] [stderr]     Checking dlib v0.3.1
[INFO] [stderr]     Checking wayland-sys v0.5.11
[INFO] [stderr]    Compiling serde_codegen v0.8.17
[INFO] [stderr]     Checking wayland-client v0.5.12
[INFO] [stderr] error[E0463]: can't find crate for `syntax`
[INFO] [stderr]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/serde_codegen-0.8.17/src/lib.rs:21:1
[INFO] [stderr]    |
[INFO] [stderr] 21 | 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 `serde_codegen`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "7c3ac06fa48162c83314114bcfd91ef9b5eb9369b34a44da8acf2290d8e7fc9f"`
[INFO] running `"docker" "rm" "-f" "7c3ac06fa48162c83314114bcfd91ef9b5eb9369b34a44da8acf2290d8e7fc9f"`
[INFO] [stdout] 7c3ac06fa48162c83314114bcfd91ef9b5eb9369b34a44da8acf2290d8e7fc9f