[INFO] fetching crate allo-isolate 0.1.8-beta...
[INFO] checking allo-isolate-0.1.8-beta against try#ddfd70ee3c3748e597b32f416b0d15a4f6e37685 for pr-87050
[INFO] extracting crate allo-isolate 0.1.8-beta into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate allo-isolate 0.1.8-beta on toolchain ddfd70ee3c3748e597b32f416b0d15a4f6e37685
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-7/source/.cargo/config
[INFO] started tweaking crates.io crate allo-isolate 0.1.8-beta
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate allo-isolate 0.1.8-beta
[INFO] tweaked toml for crates.io crate allo-isolate 0.1.8-beta written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate crates.io crate allo-isolate 0.1.8-beta already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4e77a260251847a03faa4d7bf21652ce790831c26c10cb1bd30e4bd64f40d652
[INFO] running `Command { std: "docker" "start" "-a" "4e77a260251847a03faa4d7bf21652ce790831c26c10cb1bd30e4bd64f40d652", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4e77a260251847a03faa4d7bf21652ce790831c26c10cb1bd30e4bd64f40d652", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4e77a260251847a03faa4d7bf21652ce790831c26c10cb1bd30e4bd64f40d652", kill_on_drop: false }`
[INFO] [stdout] 4e77a260251847a03faa4d7bf21652ce790831c26c10cb1bd30e4bd64f40d652
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8115634b1973c638853694af95bdb33c79f4f2a028ccdc5d977aa272d938d34f
[INFO] running `Command { std: "docker" "start" "-a" "8115634b1973c638853694af95bdb33c79f4f2a028ccdc5d977aa272d938d34f", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking fastrand v1.3.3
[INFO] [stderr]     Checking allo-isolate v0.1.8-beta (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.49s
[INFO] running `Command { std: "docker" "inspect" "8115634b1973c638853694af95bdb33c79f4f2a028ccdc5d977aa272d938d34f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8115634b1973c638853694af95bdb33c79f4f2a028ccdc5d977aa272d938d34f", kill_on_drop: false }`
[INFO] [stdout] 8115634b1973c638853694af95bdb33c79f4f2a028ccdc5d977aa272d938d34f