[INFO] fetching crate as-dyn-trait 0.2.0...
[INFO] checking as-dyn-trait-0.2.0 against try#b2c2190fa7bf856bb0ed5e8806266e3a2135c6f8 for pr-78363
[INFO] extracting crate as-dyn-trait 0.2.0 into /workspace/builds/worker-9/source
[INFO] validating manifest of crates.io crate as-dyn-trait 0.2.0 on toolchain b2c2190fa7bf856bb0ed5e8806266e3a2135c6f8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b2c2190fa7bf856bb0ed5e8806266e3a2135c6f8" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate as-dyn-trait 0.2.0
[INFO] finished tweaking crates.io crate as-dyn-trait 0.2.0
[INFO] tweaked toml for crates.io crate as-dyn-trait 0.2.0 written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b2c2190fa7bf856bb0ed5e8806266e3a2135c6f8" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b2c2190fa7bf856bb0ed5e8806266e3a2135c6f8" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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" "+b2c2190fa7bf856bb0ed5e8806266e3a2135c6f8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9801d2d0da1b1d094e82ae508de64ef251fca23bfb725ac56aafcbaf0aa26c03
[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" "9801d2d0da1b1d094e82ae508de64ef251fca23bfb725ac56aafcbaf0aa26c03", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9801d2d0da1b1d094e82ae508de64ef251fca23bfb725ac56aafcbaf0aa26c03", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9801d2d0da1b1d094e82ae508de64ef251fca23bfb725ac56aafcbaf0aa26c03", kill_on_drop: false }`
[INFO] [stdout] 9801d2d0da1b1d094e82ae508de64ef251fca23bfb725ac56aafcbaf0aa26c03
[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=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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+b2c2190fa7bf856bb0ed5e8806266e3a2135c6f8" "check" "--frozen" "--all" "--all-targets" "--message-format=json", 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] e2ab2dcd5e7a4155217a7cd136942cabd06405c525024b77fb7e89a48d865247
[INFO] running `Command { std: "docker" "start" "-a" "e2ab2dcd5e7a4155217a7cd136942cabd06405c525024b77fb7e89a48d865247", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]     Checking unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.48
[INFO] [stderr]     Checking quote v1.0.7
[INFO] [stderr]     Checking as-dyn-trait v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0453]: warn(unused_extern_crates) incompatible with previous forbid in same scope
[INFO] [stdout]   --> src/lib.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 2  |     rust_2018_idioms,
[INFO] [stdout]    |     ---------------- `forbid` level set here
[INFO] [stdout] ...
[INFO] [stdout] 13 |     unused_extern_crates,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0453]: warn(unused_extern_crates) incompatible with previous forbid in same scope
[INFO] [stdout]   --> src/lib.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 2  |     rust_2018_idioms,
[INFO] [stdout]    |     ---------------- `forbid` level set here
[INFO] [stdout] ...
[INFO] [stdout] 13 |     unused_extern_crates,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `extern crate` is not idiomatic in the new edition
[INFO] [stdout]    --> src/lib.rs:129:1
[INFO] [stdout]     |
[INFO] [stdout] 129 | extern crate proc_macro;
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^ help: convert it to a `use`
[INFO] [stdout]     |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]    --> src/lib.rs:2:5
[INFO] [stdout]     |
[INFO] [stdout] 2   |     rust_2018_idioms,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]     = note: `#[forbid(unused_extern_crates)]` implied by `#[forbid(rust_2018_idioms)]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0453`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `as-dyn-trait`
[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] [stdout] error: `extern crate` is not idiomatic in the new edition
[INFO] [stdout]    --> src/lib.rs:129:1
[INFO] [stdout]     |
[INFO] [stdout] 129 | extern crate proc_macro;
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^ help: convert it to a `use`
[INFO] [stdout]     |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]    --> src/lib.rs:2:5
[INFO] [stdout]     |
[INFO] [stdout] 2   |     rust_2018_idioms,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]     = note: `#[forbid(unused_extern_crates)]` implied by `#[forbid(rust_2018_idioms)]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0453`.
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "e2ab2dcd5e7a4155217a7cd136942cabd06405c525024b77fb7e89a48d865247", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e2ab2dcd5e7a4155217a7cd136942cabd06405c525024b77fb7e89a48d865247", kill_on_drop: false }`
[INFO] [stdout] e2ab2dcd5e7a4155217a7cd136942cabd06405c525024b77fb7e89a48d865247