[INFO] fetching crate ffp 1.3.0...
[INFO] checking ffp-1.3.0 against try#ffa4a0215752773248fb0f0a8092f1c3e7907e9e for pr-75585
[INFO] extracting crate ffp 1.3.0 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate ffp 1.3.0 on toolchain ffa4a0215752773248fb0f0a8092f1c3e7907e9e
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ffa4a0215752773248fb0f0a8092f1c3e7907e9e" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate ffp 1.3.0
[INFO] finished tweaking crates.io crate ffp 1.3.0
[INFO] tweaked toml for crates.io crate ffp 1.3.0 written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate crates.io crate ffp 1.3.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ffa4a0215752773248fb0f0a8092f1c3e7907e9e" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded tar v0.4.26
[INFO] [stderr]   Downloaded rusb v0.5.5
[INFO] [stderr]   Downloaded libusb1-sys v0.3.6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+ffa4a0215752773248fb0f0a8092f1c3e7907e9e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 36b3ecd9cc850a31c8a543999c375c90e8dd59e65e5aec8afe142a3b60bd7488
[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" "36b3ecd9cc850a31c8a543999c375c90e8dd59e65e5aec8afe142a3b60bd7488", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "36b3ecd9cc850a31c8a543999c375c90e8dd59e65e5aec8afe142a3b60bd7488", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "36b3ecd9cc850a31c8a543999c375c90e8dd59e65e5aec8afe142a3b60bd7488", kill_on_drop: false }`
[INFO] [stdout] 36b3ecd9cc850a31c8a543999c375c90e8dd59e65e5aec8afe142a3b60bd7488
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+ffa4a0215752773248fb0f0a8092f1c3e7907e9e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1ef52d0bd1e371aff5b61d46a5ceeb080c0d1cb23a1573da3113ceda600b0bcd
[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" "1ef52d0bd1e371aff5b61d46a5ceeb080c0d1cb23a1573da3113ceda600b0bcd", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.68
[INFO] [stderr]    Compiling cc v1.0.50
[INFO] [stderr]    Compiling proc-macro2 v1.0.10
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling adler32 v1.0.4
[INFO] [stderr]    Compiling syn v1.0.17
[INFO] [stderr]    Compiling rle-decode-fast v1.0.1
[INFO] [stderr]    Compiling take_mut v0.2.2
[INFO] [stderr]    Compiling pkg-config v0.3.17
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking rustc-demangle v0.1.16
[INFO] [stderr]     Checking bit-vec v0.5.1
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking vec_map v0.8.1
[INFO] [stderr]     Checking bitflags v1.2.1
[INFO] [stderr]    Compiling libflate v0.1.27
[INFO] [stderr]     Checking bit-set v0.5.1
[INFO] [stderr]    Compiling quote v1.0.3
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]    Compiling backtrace-sys v0.1.35
[INFO] [stderr]    Compiling filetime v0.2.9
[INFO] [stderr]    Compiling xattr v0.2.2
[INFO] [stderr]    Compiling tar v0.4.26
[INFO] [stderr]     Checking backtrace v0.3.46
[INFO] [stderr]    Compiling libusb1-sys v0.3.6
[INFO] [stderr]     Checking rusb v0.5.5
[INFO] [stderr]    Compiling synstructure v0.12.3
[INFO] [stderr]    Compiling failure_derive v0.1.7
[INFO] [stderr]     Checking failure v0.1.7
[INFO] [stderr]     Checking ffp v1.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 33.81s
[INFO] running `Command { std: "docker" "inspect" "1ef52d0bd1e371aff5b61d46a5ceeb080c0d1cb23a1573da3113ceda600b0bcd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1ef52d0bd1e371aff5b61d46a5ceeb080c0d1cb23a1573da3113ceda600b0bcd", kill_on_drop: false }`
[INFO] [stdout] 1ef52d0bd1e371aff5b61d46a5ceeb080c0d1cb23a1573da3113ceda600b0bcd