[INFO] crate buildchain 0.4.10 is already in cache
[INFO] checking buildchain-0.4.10 against beta-2019-10-27 for pr-65897
[INFO] extracting crate buildchain 0.4.10 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate buildchain 0.4.10 on toolchain beta-2019-10-27
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2019-10-27" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate buildchain 0.4.10
[INFO] finished tweaking crates.io crate buildchain 0.4.10
[INFO] tweaked toml for crates.io crate buildchain 0.4.10 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate crates.io crate buildchain 0.4.10 already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2019-10-27" "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-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=allow" "-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" "+beta-2019-10-27" "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] 613c11bf3ab1e75b711e9104026bc18fe01bcb371054ff749dba1d7eeb84463a
[INFO] running `"docker" "start" "-a" "613c11bf3ab1e75b711e9104026bc18fe01bcb371054ff749dba1d7eeb84463a"`
[INFO] [stderr]    Compiling cc v1.0.41
[INFO] [stderr]     Checking futures v0.1.28
[INFO] [stderr]     Checking either v1.5.2
[INFO] [stderr]    Compiling proc-macro2 v1.0.1
[INFO] [stderr]    Compiling pkg-config v0.3.15
[INFO] [stderr]    Compiling bitflags v1.1.0
[INFO] [stderr]    Compiling serde v1.0.99
[INFO] [stderr]    Compiling openssl v0.10.24
[INFO] [stderr]     Checking indexmap v1.1.0
[INFO] [stderr]     Checking regex-syntax v0.6.11
[INFO] [stderr]    Compiling encoding_rs v0.8.17
[INFO] [stderr]     Checking adler32 v1.0.3
[INFO] [stderr]     Checking index-fixed v0.3.0
[INFO] [stderr]     Checking base32 v0.4.0
[INFO] [stderr]     Checking plain v0.2.3
[INFO] [stderr]    Compiling unicase v2.4.0
[INFO] [stderr]     Checking sodalite v0.3.0
[INFO] [stderr]     Checking net2 v0.2.33
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]    Compiling hyper v0.12.33
[INFO] [stderr]     Checking miniz_oxide v0.3.2
[INFO] [stderr]     Checking bytes v0.4.12
[INFO] [stderr]     Checking crossbeam-epoch v0.7.2
[INFO] [stderr]     Checking mio v0.6.19
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]     Checking crossbeam-deque v0.7.1
[INFO] [stderr]     Checking http v0.1.18
[INFO] [stderr]     Checking string v0.2.1
[INFO] [stderr]     Checking flate2 v1.0.11
[INFO] [stderr]     Checking mime v0.3.13
[INFO] [stderr]     Checking tempdir v0.3.7
[INFO] [stderr]    Compiling mime_guess v2.0.1
[INFO] [stderr]    Compiling backtrace-sys v0.1.31
[INFO] [stderr]    Compiling openssl-sys v0.9.49
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]    Compiling syn v1.0.5
[INFO] [stderr]     Checking tokio-executor v0.1.8
[INFO] [stderr]     Checking tokio-io v0.1.12
[INFO] [stderr]     Checking tokio-sync v0.1.6
[INFO] [stderr]     Checking tokio-buf v0.1.1
[INFO] [stderr]     Checking futures-cpupool v0.1.8
[INFO] [stderr]     Checking want v0.2.0
[INFO] [stderr]    Compiling native-tls v0.2.3
[INFO] [stderr]     Checking tokio-timer v0.2.11
[INFO] [stderr]     Checking tokio-threadpool v0.1.15
[INFO] [stderr]     Checking tokio-current-thread v0.1.6
[INFO] [stderr]     Checking backtrace v0.3.35
[INFO] [stderr]     Checking error-chain v0.12.1
[INFO] [stderr]     Checking failure v0.1.5
[INFO] [stderr]     Checking tokio-reactor v0.1.9
[INFO] [stderr]     Checking tokio-tcp v0.1.3
[INFO] [stderr]     Checking regex v1.2.1
[INFO] [stderr]     Checking tokio v0.1.22
[INFO] [stderr]     Checking h2 v0.1.26
[INFO] [stderr]     Checking http-body v0.1.0
[INFO] [stderr]     Checking publicsuffix v1.5.3
[INFO] [stderr]    Compiling serde_derive v1.0.99
[INFO] [stderr]     Checking hyper-tls v0.3.2
[INFO] [stderr]     Checking serde_json v1.0.40
[INFO] [stderr]     Checking serde_urlencoded v0.5.5
[INFO] [stderr]     Checking cookie_store v0.7.0
[INFO] [stderr]     Checking lxd v0.1.8
[INFO] [stderr]     Checking reqwest v0.9.20
[INFO] [stderr]     Checking buildchain v0.4.10 (/opt/rustwide/workdir)
[INFO] [stderr] error[E0599]: no method named `fill_bytes` found for type `rand::OsRng` in the current scope
[INFO] [stderr]    --> src/store.rs:318:17
[INFO] [stderr]     |
[INFO] [stderr] 318 |             rng.fill_bytes(&mut content);
[INFO] [stderr]     |                 ^^^^^^^^^^ method not found in `rand::OsRng`
[INFO] [stderr]     |
[INFO] [stderr]     = help: items from traits can only be used if the trait is in scope
[INFO] [stderr]     = note: the following trait is implemented but not in scope, perhaps add a `use` for it:
[INFO] [stderr]             `use rand::RngCore;`
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no method named `fill_bytes` found for type `rand::OsRng` in the current scope
[INFO] [stderr]    --> src/store.rs:362:17
[INFO] [stderr]     |
[INFO] [stderr] 362 |             rng.fill_bytes(&mut content);
[INFO] [stderr]     |                 ^^^^^^^^^^ method not found in `rand::OsRng`
[INFO] [stderr]     |
[INFO] [stderr]     = help: items from traits can only be used if the trait is in scope
[INFO] [stderr]     = note: the following trait is implemented but not in scope, perhaps add a `use` for it:
[INFO] [stderr]             `use rand::RngCore;`
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no method named `fill_bytes` found for type `rand::OsRng` in the current scope
[INFO] [stderr]    --> src/store.rs:396:17
[INFO] [stderr]     |
[INFO] [stderr] 396 |             rng.fill_bytes(&mut block);
[INFO] [stderr]     |                 ^^^^^^^^^^ method not found in `rand::OsRng`
[INFO] [stderr]     |
[INFO] [stderr]     = help: items from traits can only be used if the trait is in scope
[INFO] [stderr]     = note: the following trait is implemented but not in scope, perhaps add a `use` for it:
[INFO] [stderr]             `use rand::RngCore;`
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no method named `fill_bytes` found for type `rand::OsRng` in the current scope
[INFO] [stderr]    --> src/store.rs:432:17
[INFO] [stderr]     |
[INFO] [stderr] 432 |             rng.fill_bytes(&mut block);
[INFO] [stderr]     |                 ^^^^^^^^^^ method not found in `rand::OsRng`
[INFO] [stderr]     |
[INFO] [stderr]     = help: items from traits can only be used if the trait is in scope
[INFO] [stderr]     = note: the following trait is implemented but not in scope, perhaps add a `use` for it:
[INFO] [stderr]             `use rand::RngCore;`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 4 previous errors
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0599`.
[INFO] [stderr] error: could not compile `buildchain`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "613c11bf3ab1e75b711e9104026bc18fe01bcb371054ff749dba1d7eeb84463a"`
[INFO] running `"docker" "rm" "-f" "613c11bf3ab1e75b711e9104026bc18fe01bcb371054ff749dba1d7eeb84463a"`
[INFO] [stdout] 613c11bf3ab1e75b711e9104026bc18fe01bcb371054ff749dba1d7eeb84463a