[INFO] fetching crate paxakos 0.5.0...
[INFO] testing paxakos-0.5.0 against beta-2021-08-01 for beta-1.55-1
[INFO] extracting crate paxakos 0.5.0 into /workspace/builds/worker-41/source
[INFO] validating manifest of crates.io crate paxakos 0.5.0 on toolchain beta-2021-08-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate paxakos 0.5.0
[INFO] finished tweaking crates.io crate paxakos 0.5.0
[INFO] tweaked toml for crates.io crate paxakos 0.5.0 written to /workspace/builds/worker-41/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded pin-project-internal v1.0.8
[INFO] [stderr]   Downloaded uuid v0.8.2
[INFO] [stderr]   Downloaded futures-timer v3.0.2
[INFO] [stderr]   Downloaded crypto-mac v0.8.0
[INFO] [stderr]   Downloaded async-trait v0.1.51
[INFO] [stderr]   Downloaded blake3 v0.3.8
[INFO] [stderr]   Downloaded pin-project v1.0.8
[INFO] [stderr]   Downloaded rand_distr v0.4.1
[INFO] [stderr]   Downloaded tracing-attributes v0.1.15
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-41/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-41/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] be991f3e83ed18fc3344d9699e919155e67cf8f17b16473d1ab38b12ce010285
[INFO] running `Command { std: "docker" "start" "-a" "be991f3e83ed18fc3344d9699e919155e67cf8f17b16473d1ab38b12ce010285", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "be991f3e83ed18fc3344d9699e919155e67cf8f17b16473d1ab38b12ce010285", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "be991f3e83ed18fc3344d9699e919155e67cf8f17b16473d1ab38b12ce010285", kill_on_drop: false }`
[INFO] [stdout] be991f3e83ed18fc3344d9699e919155e67cf8f17b16473d1ab38b12ce010285
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-41/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-41/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e09f69ce02805294d6f19e00be677dabac5c60dc78b41372cefc9fd027206e61
[INFO] running `Command { std: "docker" "start" "-a" "e09f69ce02805294d6f19e00be677dabac5c60dc78b41372cefc9fd027206e61", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.74
[INFO] [stderr]    Compiling futures-channel v0.3.16
[INFO] [stderr]    Compiling serde_derive v1.0.127
[INFO] [stderr]    Compiling futures-sink v0.3.16
[INFO] [stderr]    Compiling cc v1.0.69
[INFO] [stderr]    Compiling slab v0.4.4
[INFO] [stderr]    Compiling serde v1.0.127
[INFO] [stderr]    Compiling futures-io v0.3.16
[INFO] [stderr]    Compiling subtle v2.4.1
[INFO] [stderr]    Compiling async-trait v0.1.51
[INFO] [stderr]    Compiling futures-timer v3.0.2
[INFO] [stderr]    Compiling proc-macro2 v1.0.28
[INFO] [stderr]    Compiling futures-macro v0.3.16
[INFO] [stderr]    Compiling futures-core v0.3.16
[INFO] [stderr]    Compiling futures-task v0.3.16
[INFO] [stderr]    Compiling futures-util v0.3.16
[INFO] [stderr]    Compiling tracing-core v0.1.18
[INFO] [stderr]    Compiling crypto-mac v0.8.0
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling blake3 v0.3.8
[INFO] [stderr]    Compiling thiserror-impl v1.0.26
[INFO] [stderr]    Compiling pin-project-internal v1.0.8
[INFO] [stderr]    Compiling tracing-attributes v0.1.15
[INFO] [stderr]    Compiling tracing v0.1.26
[INFO] [stderr]    Compiling thiserror v1.0.26
[INFO] [stderr]    Compiling pin-project v1.0.8
[INFO] [stderr]    Compiling futures-executor v0.3.16
[INFO] [stderr]    Compiling futures v0.3.16
[INFO] [stderr]    Compiling bincode v1.3.3
[INFO] [stderr]    Compiling paxakos v0.5.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]    --> src/lib.rs:369:1
[INFO] [stdout]     |
[INFO] [stdout] 369 | #![feature(array_windows)]
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]    --> src/lib.rs:370:1
[INFO] [stdout]     |
[INFO] [stdout] 370 | #![feature(btree_drain_filter)]
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]    --> src/lib.rs:371:1
[INFO] [stdout]     |
[INFO] [stdout] 371 | #![feature(drain_filter)]
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]    --> src/lib.rs:372:1
[INFO] [stdout]     |
[INFO] [stdout] 372 | #![feature(duration_zero)]
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]    --> src/lib.rs:373:1
[INFO] [stdout]     |
[INFO] [stdout] 373 | #![feature(map_first_last)]
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]    --> src/lib.rs:374:1
[INFO] [stdout]     |
[INFO] [stdout] 374 | #![feature(never_type)]
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]    --> src/lib.rs:375:1
[INFO] [stdout]     |
[INFO] [stdout] 375 | #![feature(step_trait)]
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]    --> src/lib.rs:376:1
[INFO] [stdout]     |
[INFO] [stdout] 376 | #![feature(with_options)]
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: `?` couldn't convert the error to `ShutDown`
[INFO] [stdout]    --> src/node/state_keeper/handle.rs:72:43
[INFO] [stdout]     |
[INFO] [stdout] 72  |                 Response::$name(r) => Ok(r?),
[INFO] [stdout]     |                                           ^ the trait `From<!>` is not implemented for `ShutDown`
[INFO] [stdout] ...
[INFO] [stdout] 138 |         dispatch_state_keeper_req!(self, AwaitCommitOf, { entry_id })
[INFO] [stdout]     |         ------------------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: the question mark operation (`?`) implicitly performs a conversion on the error value using the `From` trait
[INFO] [stdout]     = note: required because of the requirements on the impl of `FromResidual<Result<Infallible, !>>` for `Result<futures::futures_channel::oneshot::Receiver<(<I as Invocation>::RoundNum, <<I as Invocation>::State as State>::Outcome)>, ShutDown>`
[INFO] [stdout] note: required by `from_residual`
[INFO] [stdout]     = note: this error originates in the macro `dispatch_state_keeper_req` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: `?` couldn't convert the error to `ShutDown`
[INFO] [stdout]    --> src/node/state_keeper/handle.rs:55:43
[INFO] [stdout]     |
[INFO] [stdout] 55  |                 Response::$name(r) => Ok(r?),
[INFO] [stdout]     |                                           ^ the trait `From<!>` is not implemented for `ShutDown`
[INFO] [stdout] ...
[INFO] [stdout] 178 |         dispatch_state_keeper_req!(self, HighestObservedCoordNum)
[INFO] [stdout]     |         --------------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: the question mark operation (`?`) implicitly performs a conversion on the error value using the `From` trait
[INFO] [stdout]     = note: required because of the requirements on the impl of `FromResidual<Result<Infallible, !>>` for `Result<<I as Invocation>::CoordNum, ShutDown>`
[INFO] [stdout] note: required by `from_residual`
[INFO] [stdout]     = note: this error originates in the macro `dispatch_state_keeper_req` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: `?` couldn't convert the error to `ShutDown`
[INFO] [stdout]    --> src/node/state_keeper/handle.rs:72:43
[INFO] [stdout]     |
[INFO] [stdout] 72  |                 Response::$name(r) => Ok(r?),
[INFO] [stdout]     |                                           ^ the trait `From<!>` is not implemented for `ShutDown`
[INFO] [stdout] ...
[INFO] [stdout] 153 |         dispatch_state_keeper_req!(self, AcceptedEntryOf, { round_num })
[INFO] [stdout]     |         ---------------------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: the question mark operation (`?`) implicitly performs a conversion on the error value using the `From` trait
[INFO] [stdout]     = note: required because of the requirements on the impl of `FromResidual<Result<Infallible, !>>` for `Result<std::option::Option<Arc<<<I as Invocation>::State as State>::LogEntry>>, ShutDown>`
[INFO] [stdout] note: required by `from_residual`
[INFO] [stdout]     = note: this error originates in the macro `dispatch_state_keeper_req` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: `?` couldn't convert the error to `ShutDown`
[INFO] [stdout]    --> src/node/state_keeper/handle.rs:72:43
[INFO] [stdout]     |
[INFO] [stdout] 72  |                 Response::$name(r) => Ok(r?),
[INFO] [stdout]     |                                           ^ the trait `From<!>` is not implemented for `ShutDown`
[INFO] [stdout] ...
[INFO] [stdout] 172 |         dispatch_state_keeper_req!(self, ObservedCoordNum, { coord_num })
[INFO] [stdout]     |         ----------------------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: the question mark operation (`?`) implicitly performs a conversion on the error value using the `From` trait
[INFO] [stdout]     = note: required because of the requirements on the impl of `FromResidual<Result<Infallible, !>>` for `Result<(), ShutDown>`
[INFO] [stdout] note: required by `from_residual`
[INFO] [stdout]     = note: this error originates in the macro `dispatch_state_keeper_req` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: `?` couldn't convert the error to `ShutDown`
[INFO] [stdout]    --> src/node/state_keeper/handle.rs:72:43
[INFO] [stdout]     |
[INFO] [stdout] 72  |                   Response::$name(r) => Ok(r?),
[INFO] [stdout]     |                                             ^ the trait `From<!>` is not implemented for `ShutDown`
[INFO] [stdout] ...
[INFO] [stdout] 274 | /         dispatch_state_keeper_req!(
[INFO] [stdout] 275 | |             self,
[INFO] [stdout] 276 | |             AssumeLeadership,
[INFO] [stdout] 277 | |             {
[INFO] [stdout] ...   |
[INFO] [stdout] 280 | |             }
[INFO] [stdout] 281 | |         )
[INFO] [stdout]     | |_________- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: the question mark operation (`?`) implicitly performs a conversion on the error value using the `From` trait
[INFO] [stdout]     = note: required because of the requirements on the impl of `FromResidual<Result<Infallible, !>>` for `Result<(), ShutDown>`
[INFO] [stdout] note: required by `from_residual`
[INFO] [stdout]     = note: this error originates in the macro `dispatch_state_keeper_req` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: `?` couldn't convert the error to `ShutDown`
[INFO] [stdout]    --> src/node/state_keeper/handle.rs:55:43
[INFO] [stdout]     |
[INFO] [stdout] 55  |                 Response::$name(r) => Ok(r?),
[INFO] [stdout]     |                                           ^ the trait `From<!>` is not implemented for `ShutDown`
[INFO] [stdout] ...
[INFO] [stdout] 285 |         dispatch_state_keeper_req!(self, ForceActive)
[INFO] [stdout]     |         --------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: the question mark operation (`?`) implicitly performs a conversion on the error value using the `From` trait
[INFO] [stdout]     = note: required because of the requirements on the impl of `FromResidual<Result<Infallible, !>>` for `Result<bool, ShutDown>`
[INFO] [stdout] note: required by `from_residual`
[INFO] [stdout]     = note: this error originates in the macro `dispatch_state_keeper_req` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: `?` couldn't convert the error to `ShutDown`
[INFO] [stdout]    --> src/node/state_keeper/handle.rs:55:43
[INFO] [stdout]     |
[INFO] [stdout] 55  |                 Response::$name(r) => Ok(r?),
[INFO] [stdout]     |                                           ^ the trait `From<!>` is not implemented for `ShutDown`
[INFO] [stdout] ...
[INFO] [stdout] 289 |         dispatch_state_keeper_req!(self, Shutdown).map(ShutDown::rule_out)
[INFO] [stdout]     |         ------------------------------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: the question mark operation (`?`) implicitly performs a conversion on the error value using the `From` trait
[INFO] [stdout]     = note: required because of the requirements on the impl of `FromResidual<Result<Infallible, !>>` for `Result<(), ShutDown>`
[INFO] [stdout] note: required by `from_residual`
[INFO] [stdout]     = note: this error originates in the macro `dispatch_state_keeper_req` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 15 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0277, E0554.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0277`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `paxakos` due to 16 previous errors
[INFO] running `Command { std: "docker" "inspect" "e09f69ce02805294d6f19e00be677dabac5c60dc78b41372cefc9fd027206e61", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e09f69ce02805294d6f19e00be677dabac5c60dc78b41372cefc9fd027206e61", kill_on_drop: false }`
[INFO] [stdout] e09f69ce02805294d6f19e00be677dabac5c60dc78b41372cefc9fd027206e61
