[INFO] fetching crate prettiest 0.2.1...
[INFO] checking prettiest-0.2.1 against master#50e1dc1536264ab71c0850f346b12309477f29f7 for pr-85073
[INFO] extracting crate prettiest 0.2.1 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate prettiest 0.2.1 on toolchain 50e1dc1536264ab71c0850f346b12309477f29f7
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+50e1dc1536264ab71c0850f346b12309477f29f7" "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-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+50e1dc1536264ab71c0850f346b12309477f29f7" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+50e1dc1536264ab71c0850f346b12309477f29f7" "fetch" "--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+50e1dc1536264ab71c0850f346b12309477f29f7" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3b4360907624d67b3b24ddd8bdaa828ed074301852c5c88ea5ebb45e3e62708f
[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" "3b4360907624d67b3b24ddd8bdaa828ed074301852c5c88ea5ebb45e3e62708f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3b4360907624d67b3b24ddd8bdaa828ed074301852c5c88ea5ebb45e3e62708f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3b4360907624d67b3b24ddd8bdaa828ed074301852c5c88ea5ebb45e3e62708f", kill_on_drop: false }`
[INFO] [stdout] 3b4360907624d67b3b24ddd8bdaa828ed074301852c5c88ea5ebb45e3e62708f
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+50e1dc1536264ab71c0850f346b12309477f29f7" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8938dfdd429ca11fbaf0416bd6a5fe9e141e15a7ad319e71a8b29caa99ce2e1b
[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" "8938dfdd429ca11fbaf0416bd6a5fe9e141e15a7ad319e71a8b29caa99ce2e1b", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.72
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling futures-core v0.3.15
[INFO] [stderr]    Compiling futures-channel v0.3.15
[INFO] [stderr]    Compiling futures-task v0.3.15
[INFO] [stderr]    Compiling proc-macro-nested v0.1.7
[INFO] [stderr]    Compiling memchr v2.4.0
[INFO] [stderr]     Checking futures-sink v0.3.15
[INFO] [stderr]     Checking futures-io v0.3.15
[INFO] [stderr]     Checking pin-project-lite v0.2.6
[INFO] [stderr]     Checking slab v0.4.3
[INFO] [stderr]     Checking scoped-tls v1.0.0
[INFO] [stderr]    Compiling wasm-bindgen-test-macro v0.3.24
[INFO] [stderr]    Compiling futures-macro v0.3.15
[INFO] [stderr]    Compiling futures-util v0.3.15
[INFO] [stderr]    Compiling wasm-bindgen-backend v0.2.74
[INFO] [stderr]    Compiling wasm-bindgen-macro-support v0.2.74
[INFO] [stderr]    Compiling wasm-bindgen-macro v0.2.74
[INFO] [stderr]     Checking wasm-bindgen v0.2.74
[INFO] [stderr]     Checking js-sys v0.3.51
[INFO] [stderr]     Checking console_error_panic_hook v0.1.6
[INFO] [stderr]     Checking futures-executor v0.3.15
[INFO] [stderr]     Checking futures v0.3.15
[INFO] [stderr]     Checking web-sys v0.3.51
[INFO] [stderr]     Checking wasm-bindgen-futures v0.4.24
[INFO] [stderr]     Checking wasm-bindgen-test v0.3.24
[INFO] [stderr]     Checking prettiest v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 23.19s
[INFO] running `Command { std: "docker" "inspect" "8938dfdd429ca11fbaf0416bd6a5fe9e141e15a7ad319e71a8b29caa99ce2e1b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8938dfdd429ca11fbaf0416bd6a5fe9e141e15a7ad319e71a8b29caa99ce2e1b", kill_on_drop: false }`
[INFO] [stdout] 8938dfdd429ca11fbaf0416bd6a5fe9e141e15a7ad319e71a8b29caa99ce2e1b