[INFO] fetching crate frequency-btreemap 1.0.0...
[INFO] checking frequency-btreemap-1.0.0 against master#7b3a7819371cef92a187e9bac8f7810ccde15216 for pr-74846
[INFO] extracting crate frequency-btreemap 1.0.0 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate frequency-btreemap 1.0.0 on toolchain 7b3a7819371cef92a187e9bac8f7810ccde15216
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7b3a7819371cef92a187e9bac8f7810ccde15216" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate frequency-btreemap 1.0.0
[INFO] removed path dependency frequency from crates.io crate frequency-btreemap 1.0.0
[INFO] finished tweaking crates.io crate frequency-btreemap 1.0.0
[INFO] tweaked toml for crates.io crate frequency-btreemap 1.0.0 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7b3a7819371cef92a187e9bac8f7810ccde15216" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7b3a7819371cef92a187e9bac8f7810ccde15216" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+7b3a7819371cef92a187e9bac8f7810ccde15216" "metadata" "--no-deps" "--format-version=1", 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] 8b15df865ada0308382c0415f7f1d0b0ec7154b6e7adb5b0a20763319abfd29c
[INFO] running `Command { std: "docker" "start" "-a" "8b15df865ada0308382c0415f7f1d0b0ec7154b6e7adb5b0a20763319abfd29c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8b15df865ada0308382c0415f7f1d0b0ec7154b6e7adb5b0a20763319abfd29c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8b15df865ada0308382c0415f7f1d0b0ec7154b6e7adb5b0a20763319abfd29c", kill_on_drop: false }`
[INFO] [stdout] 8b15df865ada0308382c0415f7f1d0b0ec7154b6e7adb5b0a20763319abfd29c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+7b3a7819371cef92a187e9bac8f7810ccde15216" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0fba19a3a2da026530e5e621b4200d718443b8230bcfa6ba9c28480724c6f630
[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" "0fba19a3a2da026530e5e621b4200d718443b8230bcfa6ba9c28480724c6f630", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.0
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]     Checking num-traits v0.1.43
[INFO] [stderr]     Checking frequency v1.0.1
[INFO] [stderr]     Checking frequency-btreemap v1.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.99s
[INFO] running `Command { std: "docker" "inspect" "0fba19a3a2da026530e5e621b4200d718443b8230bcfa6ba9c28480724c6f630", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0fba19a3a2da026530e5e621b4200d718443b8230bcfa6ba9c28480724c6f630", kill_on_drop: false }`
[INFO] [stdout] 0fba19a3a2da026530e5e621b4200d718443b8230bcfa6ba9c28480724c6f630