[INFO] fetching crate intercom-common 0.3.0...
[INFO] testing intercom-common-0.3.0 against beta-2021-08-01 for beta-1.55-1
[INFO] extracting crate intercom-common 0.3.0 into /workspace/builds/worker-43/source
[INFO] validating manifest of crates.io crate intercom-common 0.3.0 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 intercom-common 0.3.0
[INFO] finished tweaking crates.io crate intercom-common 0.3.0
[INFO] tweaked toml for crates.io crate intercom-common 0.3.0 written to /workspace/builds/worker-43/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]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-43/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-43/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] 77e5d45a5852a47db76aefa3f103c9178bcafed123a821a70460bc27e77ebce4
[INFO] running `Command { std: "docker" "start" "-a" "77e5d45a5852a47db76aefa3f103c9178bcafed123a821a70460bc27e77ebce4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "77e5d45a5852a47db76aefa3f103c9178bcafed123a821a70460bc27e77ebce4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "77e5d45a5852a47db76aefa3f103c9178bcafed123a821a70460bc27e77ebce4", kill_on_drop: false }`
[INFO] [stdout] 77e5d45a5852a47db76aefa3f103c9178bcafed123a821a70460bc27e77ebce4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-43/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-43/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] 2cb2244ca163a067319c581663b6a3a5d6b605ff54f9c7e09f15b8217efe7605
[INFO] running `Command { std: "docker" "start" "-a" "2cb2244ca163a067319c581663b6a3a5d6b605ff54f9c7e09f15b8217efe7605", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.74
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]    Compiling ucd-util v0.1.8
[INFO] [stderr]    Compiling adler v1.0.2
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling regex v0.2.11
[INFO] [stderr]    Compiling gimli v0.25.0
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling rustc-demangle v0.1.20
[INFO] [stderr]    Compiling utf8-ranges v1.0.4
[INFO] [stderr]    Compiling lazy_static v0.2.11
[INFO] [stderr]    Compiling pest v0.3.3
[INFO] [stderr]    Compiling ordermap v0.3.5
[INFO] [stderr]    Compiling sha1 v0.3.0
[INFO] [stderr]    Compiling miniz_oxide v0.4.4
[INFO] [stderr]    Compiling backtrace v0.3.61
[INFO] [stderr]    Compiling thread_local v0.3.6
[INFO] [stderr]    Compiling aho-corasick v0.6.10
[INFO] [stderr]    Compiling object v0.26.0
[INFO] [stderr]    Compiling log v0.3.9
[INFO] [stderr]    Compiling serde_json v1.0.66
[INFO] [stderr]    Compiling toml v0.4.10
[INFO] [stderr]    Compiling regex-syntax v0.5.6
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]    Compiling synstructure v0.12.5
[INFO] [stderr]    Compiling addr2line v0.16.0
[INFO] [stderr]    Compiling handlebars v0.29.1
[INFO] [stderr]    Compiling serde_derive v1.0.127
[INFO] [stderr]    Compiling failure v0.1.8
[INFO] [stderr]    Compiling intercom-common v0.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(non_exhaustive)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove the attribute
[INFO] [stdout]   |
[INFO] [stdout]   = help: the feature `non_exhaustive` has been stable since 1.40.0 and no longer requires an attribute to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/generators/idl.rs:335:18
[INFO] [stdout]     |
[INFO] [stdout] 335 |             t => IdlTypeInfo::get_idl_name_for_custom_type( krate, t, ts_config ),
[INFO] [stdout]     |                  ^^^^^^^^^^^ help: use `dyn`: `<dyn IdlTypeInfo>`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/generators/cpp.rs:164:18
[INFO] [stdout]     |
[INFO] [stdout] 164 |             t => CppTypeInfo::get_cpp_name_for_custom_type( krate, t, ts_config ),
[INFO] [stdout]     |                  ^^^^^^^^^^^ help: use `dyn`: `<dyn CppTypeInfo>`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 2 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 `intercom-common` due to 2 previous errors; 2 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "2cb2244ca163a067319c581663b6a3a5d6b605ff54f9c7e09f15b8217efe7605", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2cb2244ca163a067319c581663b6a3a5d6b605ff54f9c7e09f15b8217efe7605", kill_on_drop: false }`
[INFO] [stdout] 2cb2244ca163a067319c581663b6a3a5d6b605ff54f9c7e09f15b8217efe7605
