[INFO] fetching crate erdos 0.4.0...
[INFO] testing erdos-0.4.0 against 1.76.0 for beta-1.77-1
[INFO] extracting crate erdos 0.4.0 into /workspace/builds/worker-2-tc1/source
[INFO] validating manifest of crates.io crate erdos 0.4.0 on toolchain 1.76.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.76.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate erdos 0.4.0
[INFO] finished tweaking crates.io crate erdos 0.4.0
[INFO] tweaked toml for crates.io crate erdos 0.4.0 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.76.0" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.76.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded xml-rpc v0.0.12
[INFO] [stderr]   Downloaded rouille v3.6.2
[INFO] [stderr]   Downloaded bitflags v0.7.0
[INFO] [stderr]   Downloaded serde-xml-rs v0.2.1
[INFO] [stderr]   Downloaded tracing-appender v0.2.3
[INFO] [stderr]   Downloaded abomonation_derive v0.5.0
[INFO] [stderr]   Downloaded abomonation v0.7.3
[INFO] [stderr]   Downloaded serde_bytes v0.10.5
[INFO] [stderr]   Downloaded array-init v2.1.0
[INFO] [stderr]   Downloaded rosrust_codegen v0.9.6
[INFO] [stderr]   Downloaded xml-rs v0.3.6
[INFO] [stderr]   Downloaded multipart v0.18.0
[INFO] [stderr]   Downloaded base64 v0.6.0
[INFO] [stderr]   Downloaded futures-intrusive v0.4.2
[INFO] [stderr]   Downloaded chunked_transfer v1.5.0
[INFO] [stderr]   Downloaded safemem v0.2.0
[INFO] [stderr]   Downloaded tiny_http v0.12.0
[INFO] [stderr]   Downloaded rosrust v0.9.11
[INFO] [stderr]   Downloaded futures-delay-queue v0.4.2
[INFO] [stderr]   Downloaded ros_message v0.1.1
[INFO] [stderr]   Downloaded tokio-serde v0.3.0
[INFO] [stderr]   Downloaded tokio-serde-bincode v0.2.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.76.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2c3a213bfdbe2eea1c76b55df7060fb1009f46b1d45831289bb2192d05b12c6b
[INFO] running `Command { std: "docker" "start" "-a" "2c3a213bfdbe2eea1c76b55df7060fb1009f46b1d45831289bb2192d05b12c6b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2c3a213bfdbe2eea1c76b55df7060fb1009f46b1d45831289bb2192d05b12c6b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2c3a213bfdbe2eea1c76b55df7060fb1009f46b1d45831289bb2192d05b12c6b", kill_on_drop: false }`
[INFO] [stdout] 2c3a213bfdbe2eea1c76b55df7060fb1009f46b1d45831289bb2192d05b12c6b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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" "RUSTDOCFLAGS=--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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.76.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 35ab4233711afa09132c33c990de649c3979329cc86da34b8abae2037298fc53
[INFO] running `Command { std: "docker" "start" "-a" "35ab4233711afa09132c33c990de649c3979329cc86da34b8abae2037298fc53", kill_on_drop: false }`
[INFO] [stderr]    Compiling tracing-core v0.1.32
[INFO] [stderr]    Compiling log v0.4.20
[INFO] [stderr]    Compiling syn v2.0.48
[INFO] [stderr]    Compiling instant v0.1.12
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling parking_lot_core v0.9.9
[INFO] [stderr]    Compiling powerfmt v0.2.0
[INFO] [stderr]    Compiling overload v0.1.1
[INFO] [stderr]    Compiling sharded-slab v0.1.7
[INFO] [stderr]    Compiling bytes v0.4.12
[INFO] [stderr]    Compiling socket2 v0.5.5
[INFO] [stderr]    Compiling mio v0.8.10
[INFO] [stderr]    Compiling signal-hook-registry v1.4.1
[INFO] [stderr]    Compiling time-core v0.1.2
[INFO] [stderr]    Compiling unicode-width v0.1.11
[INFO] [stderr]    Compiling num-conv v0.1.0
[INFO] [stderr]    Compiling parking_lot_core v0.8.6
[INFO] [stderr]    Compiling nu-ansi-term v0.46.0
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling rand v0.4.6
[INFO] [stderr]    Compiling deranged v0.3.11
[INFO] [stderr]    Compiling parking_lot v0.12.1
[INFO] [stderr]    Compiling polling v2.8.0
[INFO] [stderr]    Compiling tracing-log v0.2.0
[INFO] [stderr]    Compiling kv-log-macro v1.0.7
[INFO] [stderr]    Compiling parking_lot v0.11.2
[INFO] [stderr]    Compiling tokio-serde v0.3.0
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling async-io v1.13.0
[INFO] [stderr]    Compiling crossbeam-channel v0.5.11
[INFO] [stderr]    Compiling fixedbitset v0.2.0
[INFO] [stderr]    Compiling ansi_term v0.12.1
[INFO] [stderr]    Compiling tracing-subscriber v0.3.18
[INFO] [stderr]    Compiling futures-intrusive v0.4.2
[INFO] [stderr]    Compiling futures-timer v3.0.2
[INFO] [stderr]    Compiling clap v2.34.0
[INFO] [stderr]    Compiling petgraph v0.5.1
[INFO] [stderr]    Compiling rand v0.3.23
[INFO] [stderr]    Compiling abomonation v0.7.3
[INFO] [stderr]    Compiling time v0.3.34
[INFO] [stderr]    Compiling synstructure v0.12.6
[INFO] [stderr]    Compiling abomonation_derive v0.5.0
[INFO] [stderr]    Compiling tracing-attributes v0.1.27
[INFO] [stderr]    Compiling serde_derive v1.0.196
[INFO] [stderr]    Compiling futures-macro v0.3.30
[INFO] [stderr]    Compiling thiserror-impl v1.0.57
[INFO] [stderr]    Compiling tokio-macros v2.2.0
[INFO] [stderr]    Compiling async-trait v0.1.77
[INFO] [stderr]    Compiling tokio v1.36.0
[INFO] [stderr]    Compiling futures-util v0.3.30
[INFO] [stderr]    Compiling tracing v0.1.40
[INFO] [stderr]    Compiling thiserror v1.0.57
[INFO] [stderr]    Compiling polling v3.4.0
[INFO] [stderr]    Compiling blocking v1.5.1
[INFO] [stderr]    Compiling tracing-appender v0.2.3
[INFO] [stderr]    Compiling async-io v2.3.1
[INFO] [stderr]    Compiling async-global-executor v2.4.1
[INFO] [stderr]    Compiling async-std v1.12.0
[INFO] [stderr]    Compiling serde v1.0.196
[INFO] [stderr]    Compiling futures-executor v0.3.30
[INFO] [stderr]    Compiling futures-delay-queue v0.4.2
[INFO] [stderr]    Compiling futures v0.3.30
[INFO] [stderr]    Compiling tokio-util v0.6.10
[INFO] [stderr]    Compiling bincode v1.3.3
[INFO] [stderr]    Compiling uuid v0.7.4
[INFO] [stderr]    Compiling tokio-serde-bincode v0.2.1
[INFO] [stderr]    Compiling erdos v0.4.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]    --> src/lib.rs:139:1
[INFO] [stdout]     |
[INFO] [stdout] 139 | #![feature(specialization)]
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]    --> src/lib.rs:140:1
[INFO] [stdout]     |
[INFO] [stdout] 140 | #![feature(box_into_pin)]
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]    --> src/lib.rs:140:12
[INFO] [stdout]     |
[INFO] [stdout] 140 | #![feature(box_into_pin)]
[INFO] [stdout]     |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `box_into_pin` has been stable since 1.63.0 and no longer requires an attribute to enable
[INFO] [stdout]    --> src/lib.rs:140:12
[INFO] [stdout]     |
[INFO] [stdout] 140 | #![feature(box_into_pin)]
[INFO] [stdout]     |            ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors; 1 warning 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 `erdos` (lib) due to 4 previous errors; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "35ab4233711afa09132c33c990de649c3979329cc86da34b8abae2037298fc53", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "35ab4233711afa09132c33c990de649c3979329cc86da34b8abae2037298fc53", kill_on_drop: false }`
[INFO] [stdout] 35ab4233711afa09132c33c990de649c3979329cc86da34b8abae2037298fc53
