[INFO] fetching crate isner 0.0.1-alpha.1...
[INFO] checking isner-0.0.1-alpha.1 against beta for pr-78714
[INFO] extracting crate isner 0.0.1-alpha.1 into /workspace/builds/worker-10/source
[INFO] validating manifest of crates.io crate isner 0.0.1-alpha.1 on toolchain beta
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate isner 0.0.1-alpha.1
[INFO] finished tweaking crates.io crate isner 0.0.1-alpha.1
[INFO] tweaked toml for crates.io crate isner 0.0.1-alpha.1 written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] crate crates.io crate isner 0.0.1-alpha.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8487d1bb2ba0bda01c65613a63234f5ccdc642fa956947a0075c8e919fd25148
[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" "8487d1bb2ba0bda01c65613a63234f5ccdc642fa956947a0075c8e919fd25148", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8487d1bb2ba0bda01c65613a63234f5ccdc642fa956947a0075c8e919fd25148", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8487d1bb2ba0bda01c65613a63234f5ccdc642fa956947a0075c8e919fd25148", kill_on_drop: false }`
[INFO] [stdout] 8487d1bb2ba0bda01c65613a63234f5ccdc642fa956947a0075c8e919fd25148
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 255c28ab5029bb66e3288ffa07d2c70f49b5d96233e22138ec6bebeb81d23a25
[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" "255c28ab5029bb66e3288ffa07d2c70f49b5d96233e22138ec6bebeb81d23a25", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.29
[INFO] [stderr]    Compiling quote v1.0.6
[INFO] [stderr]     Checking threadpool v1.8.1
[INFO] [stderr]     Checking env_logger v0.7.1
[INFO] [stderr]    Compiling thiserror-impl v1.0.19
[INFO] [stderr]    Compiling fehler-macros v1.0.0
[INFO] [stderr]     Checking thiserror v1.0.19
[INFO] [stderr]     Checking fehler v1.0.0
[INFO] [stderr]     Checking isner v0.0.1-alpha.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 22.33s
[INFO] running `Command { std: "docker" "inspect" "255c28ab5029bb66e3288ffa07d2c70f49b5d96233e22138ec6bebeb81d23a25", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "255c28ab5029bb66e3288ffa07d2c70f49b5d96233e22138ec6bebeb81d23a25", kill_on_drop: false }`
[INFO] [stdout] 255c28ab5029bb66e3288ffa07d2c70f49b5d96233e22138ec6bebeb81d23a25