[INFO] fetching crate build-fs-tree 0.2.4...
[INFO] checking build-fs-tree-0.2.4 against try#6f8a6450478f69b8510c8976ab6c2a70b3b0e47c for pr-84920
[INFO] extracting crate build-fs-tree 0.2.4 into /workspace/builds/worker-9/source
[INFO] validating manifest of crates.io crate build-fs-tree 0.2.4 on toolchain 6f8a6450478f69b8510c8976ab6c2a70b3b0e47c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6f8a6450478f69b8510c8976ab6c2a70b3b0e47c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate build-fs-tree 0.2.4
[INFO] finished tweaking crates.io crate build-fs-tree 0.2.4
[INFO] tweaked toml for crates.io crate build-fs-tree 0.2.4 written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate crates.io crate build-fs-tree 0.2.4 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6f8a6450478f69b8510c8976ab6c2a70b3b0e47c" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded pipe-trait v0.3.2
[INFO] [stderr]   Downloaded pipe-trait v0.2.1
[INFO] [stderr]   Downloaded structopt-utilities v0.0.8
[INFO] [stderr]   Downloaded text-block-macros v0.1.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "+6f8a6450478f69b8510c8976ab6c2a70b3b0e47c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f99f9d664fa23ffe168885785c88119d4e41abd0e35fec5841df3582a1b10d3c
[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" "f99f9d664fa23ffe168885785c88119d4e41abd0e35fec5841df3582a1b10d3c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f99f9d664fa23ffe168885785c88119d4e41abd0e35fec5841df3582a1b10d3c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f99f9d664fa23ffe168885785c88119d4e41abd0e35fec5841df3582a1b10d3c", kill_on_drop: false }`
[INFO] [stdout] f99f9d664fa23ffe168885785c88119d4e41abd0e35fec5841df3582a1b10d3c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "+6f8a6450478f69b8510c8976ab6c2a70b3b0e47c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3a36f787f20ad2e57b340a04c548556d0c109de93a5e03541a4c9457c39f5b0a
[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" "3a36f787f20ad2e57b340a04c548556d0c109de93a5e03541a4c9457c39f5b0a", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.26
[INFO] [stderr]    Compiling syn v1.0.69
[INFO] [stderr]    Compiling version_check v0.9.3
[INFO] [stderr]    Compiling libc v0.2.93
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]     Checking linked-hash-map v0.5.4
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking pipe-trait v0.2.1
[INFO] [stderr]     Checking pipe-trait v0.3.2
[INFO] [stderr]     Checking text-block-macros v0.1.0
[INFO] [stderr]     Checking yaml-rust v0.4.5
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]    Compiling structopt-derive v0.4.14
[INFO] [stderr]    Compiling serde_derive v1.0.125
[INFO] [stderr]    Compiling derive_more v0.99.13
[INFO] [stderr]     Checking structopt v0.3.21
[INFO] [stderr]     Checking structopt-utilities v0.0.8
[INFO] [stderr]     Checking serde v1.0.125
[INFO] [stderr]     Checking serde_yaml v0.8.17
[INFO] [stderr]     Checking build-fs-tree v0.2.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 56.53s
[INFO] running `Command { std: "docker" "inspect" "3a36f787f20ad2e57b340a04c548556d0c109de93a5e03541a4c9457c39f5b0a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3a36f787f20ad2e57b340a04c548556d0c109de93a5e03541a4c9457c39f5b0a", kill_on_drop: false }`
[INFO] [stdout] 3a36f787f20ad2e57b340a04c548556d0c109de93a5e03541a4c9457c39f5b0a