[INFO] fetching crate scfs 0.9.0...
[INFO] checking scfs-0.9.0 against try#45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4 for pr-83744
[INFO] extracting crate scfs 0.9.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate scfs 0.9.0 on toolchain 45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate scfs 0.9.0
[INFO] finished tweaking crates.io crate scfs 0.9.0
[INFO] tweaked toml for crates.io crate scfs 0.9.0 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate crates.io crate scfs 0.9.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded daemonize v0.4.1
[INFO] [stderr]   Downloaded cc v1.0.58
[INFO] [stderr]   Downloaded boxfnonce v0.1.1
[INFO] [stderr]   Downloaded ctrlc v3.1.5
[INFO] [stderr]   Downloaded thread-scoped v1.0.2
[INFO] [stderr]   Downloaded libc v0.2.72
[INFO] [stderr]   Downloaded syn v1.0.34
[INFO] [stderr]   Downloaded libsqlite3-sys v0.16.0
[INFO] [stderr]   Downloaded rusqlite v0.20.0
[INFO] [stderr]   Downloaded fuse v0.3.1
[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:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ad938278d5734a53c53b8f4d99e0c87d0fd88040a8a2d7b835b484260cafa8a0
[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" "ad938278d5734a53c53b8f4d99e0c87d0fd88040a8a2d7b835b484260cafa8a0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ad938278d5734a53c53b8f4d99e0c87d0fd88040a8a2d7b835b484260cafa8a0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ad938278d5734a53c53b8f4d99e0c87d0fd88040a8a2d7b835b484260cafa8a0", kill_on_drop: false }`
[INFO] [stdout] ad938278d5734a53c53b8f4d99e0c87d0fd88040a8a2d7b835b484260cafa8a0
[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:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 13bc9f1cfb0676c55c82086ffdfeec2402b98786f8767f332cc40160a05e24c6
[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" "13bc9f1cfb0676c55c82086ffdfeec2402b98786f8767f332cc40160a05e24c6", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.72
[INFO] [stderr]    Compiling pkg-config v0.3.18
[INFO] [stderr]    Compiling syn v1.0.34
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling nix v0.17.0
[INFO] [stderr]     Checking unicode-width v0.1.8
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]     Checking linked-hash-map v0.5.3
[INFO] [stderr]     Checking fallible-streaming-iterator v0.1.9
[INFO] [stderr]     Checking fallible-iterator v0.2.0
[INFO] [stderr]     Checking log v0.4.11
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking log v0.3.9
[INFO] [stderr]     Checking lru-cache v0.1.2
[INFO] [stderr]    Compiling libsqlite3-sys v0.16.0
[INFO] [stderr]    Compiling fuse v0.3.1
[INFO] [stderr]     Checking time v0.1.43
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking daemonize v0.4.1
[INFO] [stderr]     Checking clap v2.33.1
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rusqlite v0.20.0
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]    Compiling serde_derive v1.0.114
[INFO] [stderr]     Checking tempfile v3.1.0
[INFO] [stderr]     Checking ctrlc v3.1.5
[INFO] [stderr]     Checking serde v1.0.114
[INFO] [stderr]     Checking serde_json v1.0.56
[INFO] [stderr]     Checking scfs v0.9.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 36.59s
[INFO] running `Command { std: "docker" "inspect" "13bc9f1cfb0676c55c82086ffdfeec2402b98786f8767f332cc40160a05e24c6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "13bc9f1cfb0676c55c82086ffdfeec2402b98786f8767f332cc40160a05e24c6", kill_on_drop: false }`
[INFO] [stdout] 13bc9f1cfb0676c55c82086ffdfeec2402b98786f8767f332cc40160a05e24c6