[INFO] cloning repository https://github.com/freiguy1/schedule-gen-web
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/freiguy1/schedule-gen-web" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffreiguy1%2Fschedule-gen-web"`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffreiguy1%2Fschedule-gen-web'...
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 7b9a3d2473245cae135c480bbbdfb9e7d1625817
[INFO] checking freiguy1/schedule-gen-web against master#74e80468347471779be6060d8d7d6d04e98e467f for pr-72788
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffreiguy1%2Fschedule-gen-web" "/workspace/builds/worker-5/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/freiguy1/schedule-gen-web on toolchain 74e80468347471779be6060d8d7d6d04e98e467f
[INFO] running `"/workspace/cargo-home/bin/cargo" "+74e80468347471779be6060d8d7d6d04e98e467f" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/freiguy1/schedule-gen-web
[INFO] finished tweaking git repo https://github.com/freiguy1/schedule-gen-web
[INFO] tweaked toml for git repo https://github.com/freiguy1/schedule-gen-web written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/freiguy1/schedule-gen-web already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+74e80468347471779be6060d8d7d6d04e98e467f" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] error: the lock file /workspace/builds/worker-5/source/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] [stderr] If you want to try to generate the lock file without accessing the network, use the --offline flag.
[INFO] the lockfile is outdated, regenerating it
[INFO] running `"/workspace/cargo-home/bin/cargo" "+74e80468347471779be6060d8d7d6d04e98e467f" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] [stderr]     Updating git repository `https://github.com/nickel-org/nickel.rs.git`
[INFO] [stderr]     Updating git repository `https://github.com/freiguy1/schedule-gen-rs`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+74e80468347471779be6060d8d7d6d04e98e467f" "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-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "+74e80468347471779be6060d8d7d6d04e98e467f" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] aa61bc632946122485e3ad6f8330e814f2b30b53cd9178ec2dde8c5146fffecc
[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" "aa61bc632946122485e3ad6f8330e814f2b30b53cd9178ec2dde8c5146fffecc"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]     Checking regex-syntax v0.6.18
[INFO] [stderr]     Checking groupable v0.2.0
[INFO] [stderr]    Compiling openssl-sys v0.7.17
[INFO] [stderr]    Compiling openssl-sys-extras v0.7.14
[INFO] [stderr]    Compiling openssl v0.7.14
[INFO] [stderr]     Checking unicode-bidi v0.2.6
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]     Checking num_cpus v0.2.13
[INFO] [stderr]     Checking aho-corasick v0.7.10
[INFO] [stderr]     Checking uuid v0.2.3
[INFO] [stderr]     Checking hpack v0.2.0
[INFO] [stderr]     Checking mustache v0.9.0
[INFO] [stderr]     Checking schedule_gen v0.0.1 (https://github.com/freiguy1/schedule-gen-rs#288d42de)
[INFO] [stderr]     Checking solicit v0.4.4
[INFO] [stderr]     Checking url v0.5.10
[INFO] [stderr] error[E0599]: no method named `shuffle` found for struct `rand::prelude::ThreadRng` in the current scope
[INFO] [stderr]   --> /opt/rustwide/cargo-home/git/checkouts/schedule-gen-rs-0da92ba484e27e19/288d42d/src/lib.rs:88:9
[INFO] [stderr]    |
[INFO] [stderr] 88 |     rng.shuffle(round_robin.as_mut_slice());
[INFO] [stderr]    |         ^^^^^^^ method not found in `rand::prelude::ThreadRng`
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no method named `shuffle` found for struct `rand::prelude::ThreadRng` in the current scope
[INFO] [stderr]   --> /opt/rustwide/cargo-home/git/checkouts/schedule-gen-rs-0da92ba484e27e19/288d42d/src/lib.rs:94:13
[INFO] [stderr]    |
[INFO] [stderr] 94 |         rng.shuffle(round_robin.as_mut_slice());
[INFO] [stderr]    |             ^^^^^^^ method not found in `rand::prelude::ThreadRng`
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no method named `shuffle` found for struct `rand::prelude::ThreadRng` in the current scope
[INFO] [stderr]   --> /opt/rustwide/cargo-home/git/checkouts/schedule-gen-rs-0da92ba484e27e19/288d42d/src/lib.rs:98:13
[INFO] [stderr]    |
[INFO] [stderr] 98 |         rng.shuffle(week.as_mut_slice());
[INFO] [stderr]    |             ^^^^^^^ method not found in `rand::prelude::ThreadRng`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 3 previous errors
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0599`.
[INFO] [stderr] error: could not compile `schedule_gen`.
[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" "aa61bc632946122485e3ad6f8330e814f2b30b53cd9178ec2dde8c5146fffecc"`
[INFO] running `"docker" "rm" "-f" "aa61bc632946122485e3ad6f8330e814f2b30b53cd9178ec2dde8c5146fffecc"`
[INFO] [stdout] aa61bc632946122485e3ad6f8330e814f2b30b53cd9178ec2dde8c5146fffecc