[INFO] cloning repository https://github.com/forward-progress/ffpack
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/forward-progress/ffpack" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fforward-progress%2Fffpack", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fforward-progress%2Fffpack'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3561db7eecb1ac7528a81ac73e8f4085e4e99d79
[INFO] checking forward-progress/ffpack against master#506512391b1a75ae450d36c9420978402a91abcc for pr-125384
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fforward-progress%2Fffpack" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/forward-progress/ffpack on toolchain 506512391b1a75ae450d36c9420978402a91abcc
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+506512391b1a75ae450d36c9420978402a91abcc" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/forward-progress/ffpack
[INFO] finished tweaking git repo https://github.com/forward-progress/ffpack
[INFO] tweaked toml for git repo https://github.com/forward-progress/ffpack written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/forward-progress/ffpack already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+506512391b1a75ae450d36c9420978402a91abcc" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded relative-path v1.7.0
[INFO] [stderr]   Downloaded quote v1.0.19
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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:beeedbb442662e57d416641ecc3200b38e573c25b057896194468d05594dd835" "/opt/rustwide/cargo-home/bin/cargo" "+506512391b1a75ae450d36c9420978402a91abcc" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b9eace9e5d97b199b953750c622c8c61ad31006d2a68101397d8aea6cb39f965
[INFO] running `Command { std: "docker" "start" "-a" "b9eace9e5d97b199b953750c622c8c61ad31006d2a68101397d8aea6cb39f965", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b9eace9e5d97b199b953750c622c8c61ad31006d2a68101397d8aea6cb39f965", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b9eace9e5d97b199b953750c622c8c61ad31006d2a68101397d8aea6cb39f965", kill_on_drop: false }`
[INFO] [stdout] b9eace9e5d97b199b953750c622c8c61ad31006d2a68101397d8aea6cb39f965
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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=allow" "-e" "RUSTDOCFLAGS=--cap-lints=allow" "-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:beeedbb442662e57d416641ecc3200b38e573c25b057896194468d05594dd835" "/opt/rustwide/cargo-home/bin/cargo" "+506512391b1a75ae450d36c9420978402a91abcc" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f8243bdbdd3b27789340c0973e84ab977c45b19d5cd6b4d531d49f44cad31a8f
[INFO] running `Command { std: "docker" "start" "-a" "f8243bdbdd3b27789340c0973e84ab977c45b19d5cd6b4d531d49f44cad31a8f", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.98
[INFO] [stderr]    Compiling proc-macro2 v1.0.39
[INFO] [stderr]     Checking tracing-core v0.1.27
[INFO] [stderr]    Compiling semver v1.0.10
[INFO] [stderr]    Compiling once_cell v1.12.0
[INFO] [stderr]     Checking thread_local v1.1.4
[INFO] [stderr]     Checking tracing-log v0.1.3
[INFO] [stderr]    Compiling quote v1.0.19
[INFO] [stderr]     Checking tracing-subscriber v0.3.11
[INFO] [stderr]    Compiling serde_derive v1.0.137
[INFO] [stderr]    Compiling tracing-attributes v0.1.21
[INFO] [stderr]    Compiling snafu-derive v0.7.1
[INFO] [stderr]    Compiling enum_dispatch v0.3.8
[INFO] [stderr]     Checking tracing v0.1.35
[INFO] [stderr]     Checking snafu v0.7.1
[INFO] [stderr]     Checking serde v1.0.137
[INFO] [stderr]     Checking hex v0.4.3
[INFO] [stderr]     Checking relative-path v1.7.0
[INFO] [stderr]     Checking url v2.2.2
[INFO] [stderr]     Checking serde_json v1.0.81
[INFO] [stderr]     Checking ffpack v0.0.1-dev.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 10.78s
[INFO] running `Command { std: "docker" "inspect" "f8243bdbdd3b27789340c0973e84ab977c45b19d5cd6b4d531d49f44cad31a8f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f8243bdbdd3b27789340c0973e84ab977c45b19d5cd6b4d531d49f44cad31a8f", kill_on_drop: false }`
[INFO] [stdout] f8243bdbdd3b27789340c0973e84ab977c45b19d5cd6b4d531d49f44cad31a8f