[INFO] cloning repository https://github.com/xswordsx/ff
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/xswordsx/ff" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fxswordsx%2Fff", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fxswordsx%2Fff'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 47b573d8fe19131bd36192594a50a03fadbc0a1c
[INFO] checking xswordsx/ff against master#dfd7b8d03fb93d0e03147d28b3be6d93260fa94d for pr-87050
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fxswordsx%2Fff" "/workspace/builds/worker-13/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-13/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/xswordsx/ff on toolchain dfd7b8d03fb93d0e03147d28b3be6d93260fa94d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/xswordsx/ff
[INFO] finished tweaking git repo https://github.com/xswordsx/ff
[INFO] tweaked toml for git repo https://github.com/xswordsx/ff written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] crate git repo https://github.com/xswordsx/ff already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4f2c57a2f466bed80c7950bed1b312a34a8628148509295c9a1c15028d15fbd6
[INFO] running `Command { std: "docker" "start" "-a" "4f2c57a2f466bed80c7950bed1b312a34a8628148509295c9a1c15028d15fbd6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4f2c57a2f466bed80c7950bed1b312a34a8628148509295c9a1c15028d15fbd6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4f2c57a2f466bed80c7950bed1b312a34a8628148509295c9a1c15028d15fbd6", kill_on_drop: false }`
[INFO] [stdout] 4f2c57a2f466bed80c7950bed1b312a34a8628148509295c9a1c15028d15fbd6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a6e6fe3e34629ec38d7e629195eac8f0559d08baff910e46f33bcde22103429b
[INFO] running `Command { std: "docker" "start" "-a" "a6e6fe3e34629ec38d7e629195eac8f0559d08baff910e46f33bcde22103429b", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.0
[INFO] [stderr]    Compiling proc-macro-hack v0.5.19
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking treeline v0.1.0
[INFO] [stderr]     Checking difference v2.0.0
[INFO] [stderr]     Checking unicode-width v0.1.7
[INFO] [stderr]     Checking linked-hash-map v0.5.3
[INFO] [stderr]     Checking json v0.11.15
[INFO] [stderr]     Checking wait-timeout v0.2.0
[INFO] [stderr]     Checking regex-automata v0.1.9
[INFO] [stderr]     Checking predicates-tree v1.0.2
[INFO] [stderr]     Checking getopts v0.2.21
[INFO] [stderr]     Checking predicates v1.0.7
[INFO] [stderr]     Checking yaml-rust v0.4.4
[INFO] [stderr]     Checking bstr v0.2.15
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling num-integer v0.1.43
[INFO] [stderr]     Checking assert_cmd v1.0.3
[INFO] [stderr]    Compiling paste-impl v0.1.18
[INFO] [stderr]     Checking chrono v0.4.11
[INFO] [stderr]     Checking paste v0.1.18
[INFO] [stderr]     Checking ff v1.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.01s
[INFO] running `Command { std: "docker" "inspect" "a6e6fe3e34629ec38d7e629195eac8f0559d08baff910e46f33bcde22103429b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a6e6fe3e34629ec38d7e629195eac8f0559d08baff910e46f33bcde22103429b", kill_on_drop: false }`
[INFO] [stdout] a6e6fe3e34629ec38d7e629195eac8f0559d08baff910e46f33bcde22103429b