[INFO] crate libdeadmock 0.1.6 is already in cache
[INFO] checking libdeadmock-0.1.6 against try#e922e6444795ab795fab1943288aee3d543699b8 for pr-66852
[INFO] extracting crate libdeadmock 0.1.6 into /workspace/builds/worker-14/source
[INFO] validating manifest of crates.io crate libdeadmock 0.1.6 on toolchain e922e6444795ab795fab1943288aee3d543699b8
[INFO] running `"/workspace/cargo-home/bin/cargo" "+e922e6444795ab795fab1943288aee3d543699b8" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate libdeadmock 0.1.6
[INFO] finished tweaking crates.io crate libdeadmock 0.1.6
[INFO] tweaked toml for crates.io crate libdeadmock 0.1.6 written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+e922e6444795ab795fab1943288aee3d543699b8" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+e922e6444795ab795fab1943288aee3d543699b8" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded typed-headers v0.2.0
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "+e922e6444795ab795fab1943288aee3d543699b8" "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] dee756e82717308eb576cc1d341077bd07e354003ad30206e3c2cffdeb4aaa2d
[INFO] running `"docker" "start" "-a" "dee756e82717308eb576cc1d341077bd07e354003ad30206e3c2cffdeb4aaa2d"`
[INFO] [stderr]     Checking futures v0.1.29
[INFO] [stderr]    Compiling slog v2.5.2
[INFO] [stderr]     Checking bytes v0.5.2
[INFO] [stderr]     Checking tokio-trace-core v0.1.0
[INFO] [stderr]     Checking cached v0.11.0
[INFO] [stderr]     Checking toml v0.5.5
[INFO] [stderr]     Checking bytes v0.4.12
[INFO] [stderr]     Checking native-tls v0.2.3
[INFO] [stderr]    Compiling getset v0.0.9
[INFO] [stderr]     Checking libeither v0.4.0
[INFO] [stderr]     Checking uuid v0.7.4
[INFO] [stderr] error[E0599]: no function or associated item named `iter_sources` found for type `dyn std::error::Error` in the current scope
[INFO] [stderr]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/libeither-0.4.0/src/error.rs:79:38
[INFO] [stderr]    |
[INFO] [stderr] 79 |         let res = std::error::Error::iter_sources(self).fold(
[INFO] [stderr]    |                                      ^^^^^^^^^^^^ function or associated item not found in `dyn std::error::Error`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0599`.
[INFO] [stderr] error: could not compile `libeither`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "dee756e82717308eb576cc1d341077bd07e354003ad30206e3c2cffdeb4aaa2d"`
[INFO] running `"docker" "rm" "-f" "dee756e82717308eb576cc1d341077bd07e354003ad30206e3c2cffdeb4aaa2d"`
[INFO] [stdout] dee756e82717308eb576cc1d341077bd07e354003ad30206e3c2cffdeb4aaa2d