[INFO] fetching crate async_executors 0.4.1...
[INFO] checking async_executors-0.4.1 against try#6f8a6450478f69b8510c8976ab6c2a70b3b0e47c for pr-84920
[INFO] extracting crate async_executors 0.4.1 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate async_executors 0.4.1 on toolchain 6f8a6450478f69b8510c8976ab6c2a70b3b0e47c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6f8a6450478f69b8510c8976ab6c2a70b3b0e47c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate async_executors 0.4.1
[INFO] removed 5 missing examples
[INFO] finished tweaking crates.io crate async_executors 0.4.1
[INFO] tweaked toml for crates.io crate async_executors 0.4.1 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate crates.io crate async_executors 0.4.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6f8a6450478f69b8510c8976ab6c2a70b3b0e47c" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+6f8a6450478f69b8510c8976ab6c2a70b3b0e47c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] be6ef1a85c6d323c76674b03afae434c02062bd097f7968d7b583d531436483e
[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" "be6ef1a85c6d323c76674b03afae434c02062bd097f7968d7b583d531436483e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "be6ef1a85c6d323c76674b03afae434c02062bd097f7968d7b583d531436483e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "be6ef1a85c6d323c76674b03afae434c02062bd097f7968d7b583d531436483e", kill_on_drop: false }`
[INFO] [stdout] be6ef1a85c6d323c76674b03afae434c02062bd097f7968d7b583d531436483e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+6f8a6450478f69b8510c8976ab6c2a70b3b0e47c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5e0bebdca4af34f1ca414e2af573fed075f79397940e756486c8bd112e3a2b2c
[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" "5e0bebdca4af34f1ca414e2af573fed075f79397940e756486c8bd112e3a2b2c", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.93
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling wasm-bindgen-shared v0.2.73
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling bumpalo v3.6.1
[INFO] [stderr]    Compiling ucd-trie v0.1.3
[INFO] [stderr]    Compiling proc-macro-hack v0.5.19
[INFO] [stderr]    Compiling wasm-bindgen v0.2.73
[INFO] [stderr]     Checking vec-arena v1.1.0
[INFO] [stderr]     Checking futures-task v0.3.14
[INFO] [stderr]     Checking send_wrapper v0.4.0
[INFO] [stderr]     Checking thread_local v1.1.3
[INFO] [stderr]     Checking tracing-core v0.1.17
[INFO] [stderr]     Checking sharded-slab v0.1.1
[INFO] [stderr]    Compiling crossbeam-utils v0.8.3
[INFO] [stderr]    Compiling proc-macro2 v1.0.26
[INFO] [stderr]    Compiling pest v2.1.3
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking futures-lite v1.11.3
[INFO] [stderr]    Compiling syn v1.0.70
[INFO] [stderr]     Checking tracing-subscriber v0.2.17
[INFO] [stderr]     Checking socket2 v0.4.0
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking signal-hook-registry v1.3.0
[INFO] [stderr]     Checking signal-hook v0.3.8
[INFO] [stderr]    Compiling semver-parser v0.10.2
[INFO] [stderr]     Checking blocking v1.0.2
[INFO] [stderr]     Checking async-executor v1.4.0
[INFO] [stderr]    Compiling semver v0.11.0
[INFO] [stderr]    Compiling rustc_version v0.3.3
[INFO] [stderr]    Compiling async_executors v0.4.1 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling ctor v0.1.20
[INFO] [stderr]    Compiling futures-macro v0.3.14
[INFO] [stderr]    Compiling async-attributes v1.1.2
[INFO] [stderr]    Compiling tracing-attributes v0.1.15
[INFO] [stderr]    Compiling value-bag v1.0.0-alpha.6
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]     Checking futures-util v0.3.14
[INFO] [stderr]    Compiling wasm-bindgen-backend v0.2.73
[INFO] [stderr]     Checking polling v2.0.3
[INFO] [stderr]     Checking kv-log-macro v1.0.7
[INFO] [stderr]     Checking async-io v1.4.0
[INFO] [stderr]     Checking tracing v0.1.25
[INFO] [stderr]     Checking async-global-executor v2.0.2
[INFO] [stderr]     Checking async-process v1.0.2
[INFO] [stderr]     Checking async-std v1.9.0
[INFO] [stderr]    Compiling wasm-bindgen-macro-support v0.2.73
[INFO] [stderr]    Compiling wasm-bindgen-macro v0.2.73
[INFO] [stderr]     Checking futures-executor v0.3.14
[INFO] [stderr]     Checking futures v0.3.14
[INFO] [stderr]     Checking js-sys v0.3.50
[INFO] [stderr]     Checking web-sys v0.3.50
[INFO] [stderr]     Checking gloo-timers v0.2.1
[INFO] [stderr]     Checking futures-timer v3.0.2
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 32.50s
[INFO] running `Command { std: "docker" "inspect" "5e0bebdca4af34f1ca414e2af573fed075f79397940e756486c8bd112e3a2b2c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5e0bebdca4af34f1ca414e2af573fed075f79397940e756486c8bd112e3a2b2c", kill_on_drop: false }`
[INFO] [stdout] 5e0bebdca4af34f1ca414e2af573fed075f79397940e756486c8bd112e3a2b2c