[INFO] cloning repository https://github.com/archer884/shuffle
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/archer884/shuffle" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Farcher884%2Fshuffle", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Farcher884%2Fshuffle'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d16eeb8e3c8a6ebe3f44633c920986facd6c2cd3
[INFO] testing archer884/shuffle against beta-2020-10-09 for beta-1.48-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Farcher884%2Fshuffle" "/workspace/builds/worker-9/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-9/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/archer884/shuffle on toolchain beta-2020-10-09
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-10-09" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/archer884/shuffle
[INFO] finished tweaking git repo https://github.com/archer884/shuffle
[INFO] tweaked toml for git repo https://github.com/archer884/shuffle written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate git repo https://github.com/archer884/shuffle already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-10-09" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] error: the lock file /workspace/builds/worker-9/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[INFO] the lockfile is outdated, regenerating it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 `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-10-09" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-10-09" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-10-09" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 978471db5f91c93e08e5e7ae797ac68d15fb1741d31d0c63e69aeb5477d0228c
[INFO] running `Command { std: "docker" "start" "-a" "978471db5f91c93e08e5e7ae797ac68d15fb1741d31d0c63e69aeb5477d0228c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "978471db5f91c93e08e5e7ae797ac68d15fb1741d31d0c63e69aeb5477d0228c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "978471db5f91c93e08e5e7ae797ac68d15fb1741d31d0c63e69aeb5477d0228c", kill_on_drop: false }`
[INFO] [stdout] 978471db5f91c93e08e5e7ae797ac68d15fb1741d31d0c63e69aeb5477d0228c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-10-09" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 22f2294120ddf523fc51ef1ee2e2662ffa8356ead4ca7a13378f2e3bae18fbc5
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "22f2294120ddf523fc51ef1ee2e2662ffa8356ead4ca7a13378f2e3bae18fbc5", kill_on_drop: false }`
[INFO] [stderr]    Compiling shuffle v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]   --> src/nshuffle.rs:42:1
[INFO] [stdout]    |
[INFO] [stdout] 42 | #![feature(collections)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `push_all` found for struct `Vec<_>` in the current scope
[INFO] [stdout]   --> src/nshuffle.rs:49:9
[INFO] [stdout]    |
[INFO] [stdout] 49 |     vec.push_all(s);
[INFO] [stdout]    |         ^^^^^^^^ method not found in `Vec<_>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `shuffle` found for mutable reference `&mut R` in the current scope
[INFO] [stdout]   --> src/nshuffle.rs:52:11
[INFO] [stdout]    |
[INFO] [stdout] 52 |         r.shuffle(&mut vec);
[INFO] [stdout]    |           ^^^^^^^ method not found in `&mut R`
[INFO] [stdout]    |
[INFO] [stdout]    = help: items from traits can only be used if the type parameter is bounded by the trait
[INFO] [stdout] help: the following trait defines an item `shuffle`, perhaps you need to restrict type parameter `R` with it:
[INFO] [stdout]    |
[INFO] [stdout] 47 | pub fn shuffle<R: SliceRandom + Rng, T: PartialEq + Clone>(r: &mut R, s: &[T]) -> Vec<T> {
[INFO] [stdout]    |                ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `push_all` found for struct `Vec<_>` in the current scope
[INFO] [stdout]   --> src/nshuffle.rs:59:9
[INFO] [stdout]    |
[INFO] [stdout] 59 |     vec.push_all(s);
[INFO] [stdout]    |         ^^^^^^^^ method not found in `Vec<_>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `shuffle` found for mutable reference `&mut R` in the current scope
[INFO] [stdout]   --> src/nshuffle.rs:62:11
[INFO] [stdout]    |
[INFO] [stdout] 62 |         r.shuffle(&mut vec)
[INFO] [stdout]    |           ^^^^^^^ method not found in `&mut R`
[INFO] [stdout]    |
[INFO] [stdout]    = help: items from traits can only be used if the type parameter is bounded by the trait
[INFO] [stdout] help: the following trait defines an item `shuffle`, perhaps you need to restrict type parameter `R` with it:
[INFO] [stdout]    |
[INFO] [stdout] 57 | pub fn extended_shuffle<R: SliceRandom + Rng, T: PartialEq + Clone>(r: &mut R, s: &[T], p: &[T]) -> Vec<T> {
[INFO] [stdout]    |                         ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 5 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0554, E0599.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `shuffle`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "22f2294120ddf523fc51ef1ee2e2662ffa8356ead4ca7a13378f2e3bae18fbc5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "22f2294120ddf523fc51ef1ee2e2662ffa8356ead4ca7a13378f2e3bae18fbc5", kill_on_drop: false }`
[INFO] [stdout] 22f2294120ddf523fc51ef1ee2e2662ffa8356ead4ca7a13378f2e3bae18fbc5
