[INFO] crate libdeadmock 0.1.6 is already in cache
[INFO] checking libdeadmock-0.1.6 against try#9ff4d07208097950831ed4ea9d76feb1eafc8baa for pr-69340
[INFO] extracting crate libdeadmock 0.1.6 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate libdeadmock 0.1.6 on toolchain 9ff4d07208097950831ed4ea9d76feb1eafc8baa
[INFO] running `"/workspace/cargo-home/bin/cargo" "+9ff4d07208097950831ed4ea9d76feb1eafc8baa" "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-2/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+9ff4d07208097950831ed4ea9d76feb1eafc8baa" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+9ff4d07208097950831ed4ea9d76feb1eafc8baa" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+9ff4d07208097950831ed4ea9d76feb1eafc8baa" "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] 7f2852eea8de47f55f1feae20d824b3ee529fce24f1b798f8bec87f0f4166889
[INFO] running `"docker" "start" "-a" "7f2852eea8de47f55f1feae20d824b3ee529fce24f1b798f8bec87f0f4166889"`
[INFO] [stderr]    Compiling slog v2.5.2
[INFO] [stderr]     Checking tokio-sync v0.1.8
[INFO] [stderr]     Checking futures-channel v0.3.4
[INFO] [stderr]     Checking cached v0.11.0
[INFO] [stderr]     Checking tokio-executor v0.1.10
[INFO] [stderr]     Checking tokio-io v0.1.13
[INFO] [stderr]     Checking tokio v0.2.11
[INFO] [stderr]    Compiling syn-mid v0.5.0
[INFO] [stderr]     Checking uuid v0.7.4
[INFO] [stderr]    Compiling proc-macro-error v0.4.9
[INFO] [stderr]     Checking libeither v0.4.0
[INFO] [stderr]     Checking typed-headers v0.2.0
[INFO] [stderr]     Checking tokio-current-thread v0.1.7
[INFO] [stderr]     Checking tokio-timer v0.2.13
[INFO] [stderr] error[E0599]: no function or associated item named `iter_sources` found for trait object `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] 
[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" "7f2852eea8de47f55f1feae20d824b3ee529fce24f1b798f8bec87f0f4166889"`
[INFO] running `"docker" "rm" "-f" "7f2852eea8de47f55f1feae20d824b3ee529fce24f1b798f8bec87f0f4166889"`
[INFO] [stdout] 7f2852eea8de47f55f1feae20d824b3ee529fce24f1b798f8bec87f0f4166889