[INFO] fetching crate prettiest 0.2.1...
[INFO] checking prettiest-0.2.1 against master#f82664191d0e8764b7435b9d72eb0e366b8b1464 for pr-83354
[INFO] extracting crate prettiest 0.2.1 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate prettiest 0.2.1 on toolchain f82664191d0e8764b7435b9d72eb0e366b8b1464
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f82664191d0e8764b7435b9d72eb0e366b8b1464" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate prettiest 0.2.1
[INFO] finished tweaking crates.io crate prettiest 0.2.1
[INFO] tweaked toml for crates.io crate prettiest 0.2.1 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f82664191d0e8764b7435b9d72eb0e366b8b1464" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f82664191d0e8764b7435b9d72eb0e366b8b1464" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+f82664191d0e8764b7435b9d72eb0e366b8b1464" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 952ba1571bce6be08acc305364c7ee6f064a1908a0207931b7f12aa42aa8170c
[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" "952ba1571bce6be08acc305364c7ee6f064a1908a0207931b7f12aa42aa8170c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "952ba1571bce6be08acc305364c7ee6f064a1908a0207931b7f12aa42aa8170c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "952ba1571bce6be08acc305364c7ee6f064a1908a0207931b7f12aa42aa8170c", kill_on_drop: false }`
[INFO] [stdout] 952ba1571bce6be08acc305364c7ee6f064a1908a0207931b7f12aa42aa8170c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+f82664191d0e8764b7435b9d72eb0e366b8b1464" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8fea72af77655cba3d95155141f65fdd7fcf7c84940c3fb8c5dddfcec6f29b25
[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" "8fea72af77655cba3d95155141f65fdd7fcf7c84940c3fb8c5dddfcec6f29b25", kill_on_drop: false }`
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling wasm-bindgen-shared v0.2.72
[INFO] [stderr]    Compiling bumpalo v3.6.1
[INFO] [stderr]    Compiling wasm-bindgen v0.2.72
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling proc-macro-nested v0.1.7
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]     Checking futures-sink v0.3.13
[INFO] [stderr]     Checking futures-core v0.3.13
[INFO] [stderr]     Checking futures-task v0.3.13
[INFO] [stderr]     Checking futures-io v0.3.13
[INFO] [stderr]     Checking scoped-tls v1.0.0
[INFO] [stderr]    Compiling wasm-bindgen-test-macro v0.3.22
[INFO] [stderr]    Compiling futures-macro v0.3.13
[INFO] [stderr]     Checking futures-channel v0.3.13
[INFO] [stderr]    Compiling wasm-bindgen-backend v0.2.72
[INFO] [stderr]    Compiling wasm-bindgen-macro-support v0.2.72
[INFO] [stderr]     Checking futures-util v0.3.13
[INFO] [stderr]    Compiling wasm-bindgen-macro v0.2.72
[INFO] [stderr]     Checking futures-executor v0.3.13
[INFO] [stderr]     Checking js-sys v0.3.49
[INFO] [stderr]     Checking console_error_panic_hook v0.1.6
[INFO] [stderr]     Checking futures v0.3.13
[INFO] [stderr]     Checking web-sys v0.3.49
[INFO] [stderr]     Checking wasm-bindgen-futures v0.4.22
[INFO] [stderr]     Checking wasm-bindgen-test v0.3.22
[INFO] [stderr]     Checking prettiest v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 23.49s
[INFO] running `Command { std: "docker" "inspect" "8fea72af77655cba3d95155141f65fdd7fcf7c84940c3fb8c5dddfcec6f29b25", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8fea72af77655cba3d95155141f65fdd7fcf7c84940c3fb8c5dddfcec6f29b25", kill_on_drop: false }`
[INFO] [stdout] 8fea72af77655cba3d95155141f65fdd7fcf7c84940c3fb8c5dddfcec6f29b25