[INFO] fetching crate rgen3-save 0.1.0...
[INFO] checking rgen3-save-0.1.0 against beta for pr-78714
[INFO] extracting crate rgen3-save 0.1.0 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate rgen3-save 0.1.0 on toolchain beta
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rgen3-save 0.1.0
[INFO] removed path dependency rgen3-string from crates.io crate rgen3-save 0.1.0
[INFO] finished tweaking crates.io crate rgen3-save 0.1.0
[INFO] tweaked toml for crates.io crate rgen3-save 0.1.0 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "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] 8f2b65ba50364b956a15b6e0165f0f99ad87ba44e9af5f8552bd90e5252ffa50
[INFO] running `Command { std: "docker" "start" "-a" "8f2b65ba50364b956a15b6e0165f0f99ad87ba44e9af5f8552bd90e5252ffa50", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8f2b65ba50364b956a15b6e0165f0f99ad87ba44e9af5f8552bd90e5252ffa50", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8f2b65ba50364b956a15b6e0165f0f99ad87ba44e9af5f8552bd90e5252ffa50", kill_on_drop: false }`
[INFO] [stdout] 8f2b65ba50364b956a15b6e0165f0f99ad87ba44e9af5f8552bd90e5252ffa50
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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=forbid" "-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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c12ebecfcda0469130944b3709b51c6a7e385ada948d78d7ea14bf17d8b83058
[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" "c12ebecfcda0469130944b3709b51c6a7e385ada948d78d7ea14bf17d8b83058", kill_on_drop: false }`
[INFO] [stderr]     Checking utf8-ranges v0.1.3
[INFO] [stderr]     Checking regex-syntax v0.3.9
[INFO] [stderr]     Checking rgen3-string v0.1.0
[INFO] [stderr]     Checking byteorder v0.5.3
[INFO] [stderr]     Checking memchr v0.1.11
[INFO] [stderr]     Checking thread-id v2.0.0
[INFO] [stderr]     Checking thread_local v0.2.7
[INFO] [stderr]     Checking aho-corasick v0.5.3
[INFO] [stderr]     Checking rgen3-save v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![feature(associated_consts, question_mark)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/rw.rs:42:58
[INFO] [stdout]    |
[INFO] [stdout] 42 |     fn read<R: Read>(reader: &mut R) -> Result<Self, Box<Error>> {
[INFO] [stdout]    |                                                          ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/rw.rs:132:92
[INFO] [stdout]     |
[INFO] [stdout] 132 |     fn read<R: Read + Seek>(reader: &mut R, session: &mut ReadSession) -> Result<Self, Box<Error>> {
[INFO] [stdout]     |                                                                                            ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/rw.rs:242:72
[INFO] [stdout]     |
[INFO] [stdout] 242 |     fn read<R: Read + Seek>(reader: &mut R) -> Result<(Self, u32), Box<Error>> {
[INFO] [stdout]     |                                                                        ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/rw.rs:286:69
[INFO] [stdout]     |
[INFO] [stdout] 286 |     pub fn read<R: Read + Seek>(reader: &mut R) -> Result<Self, Box<Error>> {
[INFO] [stdout]     |                                                                     ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/rw.rs:317:58
[INFO] [stdout]     |
[INFO] [stdout] 317 |     fn read<R: Read>(reader: &mut R) -> Result<Self, Box<Error>> {
[INFO] [stdout]     |                                                          ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/rw.rs:367:81
[INFO] [stdout]     |
[INFO] [stdout] 367 |     fn read<R: Read>(reader: &mut R, session: &ReadSession) -> Result<Self, Box<Error>> {
[INFO] [stdout]     |                                                                                 ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/rw.rs:410:79
[INFO] [stdout]     |
[INFO] [stdout] 410 |     fn read<R: Read>(reader: &mut R, game_type: GameType) -> Result<Self, Box<Error>> {
[INFO] [stdout]     |                                                                               ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/rw.rs:456:58
[INFO] [stdout]     |
[INFO] [stdout] 456 |     fn read<R: Read>(reader: &mut R) -> Result<Self, Box<Error>> {
[INFO] [stdout]     |                                                          ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/rw.rs:596:79
[INFO] [stdout]     |
[INFO] [stdout] 596 |     fn read<R: Read>(reader: &mut R, pv: u32, ot_id: u32) -> Result<Self, Box<Error>> {
[INFO] [stdout]     |                                                                               ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/rw.rs:650:68
[INFO] [stdout]     |
[INFO] [stdout] 650 | ...                   -> Result<[u8; SUBSTRUCTURE_LEN], Box<Error>> {
[INFO] [stdout]     |                                                             ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/rw.rs:673:72
[INFO] [stdout]     |
[INFO] [stdout] 673 |     fn read<R: Read>(reader: &mut R, dec_key: u32) -> Result<Self, Box<Error>> {
[INFO] [stdout]     |                                                                        ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/rw.rs:696:72
[INFO] [stdout]     |
[INFO] [stdout] 696 |     fn read<R: Read>(reader: &mut R, dec_key: u32) -> Result<Self, Box<Error>> {
[INFO] [stdout]     |                                                                        ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/rw.rs:723:72
[INFO] [stdout]     |
[INFO] [stdout] 723 |     fn read<R: Read>(reader: &mut R, dec_key: u32) -> Result<Self, Box<Error>> {
[INFO] [stdout]     |                                                                        ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/rw.rs:758:72
[INFO] [stdout]     |
[INFO] [stdout] 758 |     fn read<R: Read>(reader: &mut R, dec_key: u32) -> Result<Self, Box<Error>> {
[INFO] [stdout]     |                                                                        ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lib.rs:39:72
[INFO] [stdout]    |
[INFO] [stdout] 39 |     pub fn load_from_file<P: AsRef<Path>>(path: P) -> Result<Self, Box<Error>> {
[INFO] [stdout]    |                                                                        ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 15 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rgen3-save`
[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 `Command { std: "docker" "inspect" "c12ebecfcda0469130944b3709b51c6a7e385ada948d78d7ea14bf17d8b83058", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c12ebecfcda0469130944b3709b51c6a7e385ada948d78d7ea14bf17d8b83058", kill_on_drop: false }`
[INFO] [stdout] c12ebecfcda0469130944b3709b51c6a7e385ada948d78d7ea14bf17d8b83058