[INFO] fetching crate assert_let 0.1.0... [INFO] checking assert_let-0.1.0 against beta for pr-78714 [INFO] extracting crate assert_let 0.1.0 into /workspace/builds/worker-4/source [INFO] validating manifest of crates.io crate assert_let 0.1.0 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 assert_let 0.1.0 [INFO] finished tweaking crates.io crate assert_let 0.1.0 [INFO] tweaked toml for crates.io crate assert_let 0.1.0 written to /workspace/builds/worker-4/source/Cargo.toml [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }` [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-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] 7c8df4c33c9f019543351e4e50298ac4a6322f6b67b0493ad5773eca91fc5e57 [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" "7c8df4c33c9f019543351e4e50298ac4a6322f6b67b0493ad5773eca91fc5e57", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "7c8df4c33c9f019543351e4e50298ac4a6322f6b67b0493ad5773eca91fc5e57", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "7c8df4c33c9f019543351e4e50298ac4a6322f6b67b0493ad5773eca91fc5e57", kill_on_drop: false }` [INFO] [stdout] 7c8df4c33c9f019543351e4e50298ac4a6322f6b67b0493ad5773eca91fc5e57 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] 5ddf7ca96501a224cb2aa28121ff065e9bb59dc1edc1f14688644f2ec1c291b4 [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" "5ddf7ca96501a224cb2aa28121ff065e9bb59dc1edc1f14688644f2ec1c291b4", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.24 [INFO] [stderr] Checking quote v1.0.7 [INFO] [stderr] Checking assert_let v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 2.24s [INFO] running `Command { std: "docker" "inspect" "5ddf7ca96501a224cb2aa28121ff065e9bb59dc1edc1f14688644f2ec1c291b4", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "5ddf7ca96501a224cb2aa28121ff065e9bb59dc1edc1f14688644f2ec1c291b4", kill_on_drop: false }` [INFO] [stdout] 5ddf7ca96501a224cb2aa28121ff065e9bb59dc1edc1f14688644f2ec1c291b4