[INFO] cloning repository https://github.com/vanguarddev/vanguard-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/vanguarddev/vanguard-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvanguarddev%2Fvanguard-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvanguarddev%2Fvanguard-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3d0ad5e3082551a8642ae7d7086a8e0634a048f8
[INFO] checking vanguarddev/vanguard-rs against try#ddfd70ee3c3748e597b32f416b0d15a4f6e37685 for pr-87050
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvanguarddev%2Fvanguard-rs" "/workspace/builds/worker-1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/vanguarddev/vanguard-rs on toolchain ddfd70ee3c3748e597b32f416b0d15a4f6e37685
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/vanguarddev/vanguard-rs
[INFO] finished tweaking git repo https://github.com/vanguarddev/vanguard-rs
[INFO] tweaked toml for git repo https://github.com/vanguarddev/vanguard-rs written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/vanguarddev/vanguard-rs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded roxmltree v0.9.1
[INFO] [stderr]   Downloaded xmlparser v0.13.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0b25fed9746e058c5a141e9e088d514684e405e99b7d51bb390039fa42932dd3
[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" "0b25fed9746e058c5a141e9e088d514684e405e99b7d51bb390039fa42932dd3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0b25fed9746e058c5a141e9e088d514684e405e99b7d51bb390039fa42932dd3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0b25fed9746e058c5a141e9e088d514684e405e99b7d51bb390039fa42932dd3", kill_on_drop: false }`
[INFO] [stdout] 0b25fed9746e058c5a141e9e088d514684e405e99b7d51bb390039fa42932dd3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] f5e29c473e13c8e67ba02e840948ad046a5dc200973c4cd711a80bb932699024
[INFO] running `Command { std: "docker" "start" "-a" "f5e29c473e13c8e67ba02e840948ad046a5dc200973c4cd711a80bb932699024", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.67
[INFO] [stderr]    Compiling cc v1.0.50
[INFO] [stderr]     Checking smallvec v1.2.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.9
[INFO] [stderr]     Checking untrusted v0.7.0
[INFO] [stderr]     Checking xmlparser v0.13.0
[INFO] [stderr]     Checking qstring v0.7.2
[INFO] [stderr]     Checking log v0.4.8
[INFO] [stderr]     Checking base64 v0.10.1
[INFO] [stderr]     Checking unicode-normalization v0.1.12
[INFO] [stderr]     Checking roxmltree v0.9.1
[INFO] [stderr]    Compiling ring v0.16.11
[INFO] [stderr]     Checking time v0.1.42
[INFO] [stderr]     Checking idna v0.1.5
[INFO] [stderr]     Checking idna v0.2.0
[INFO] [stderr]    Compiling quote v1.0.3
[INFO] [stderr]    Compiling syn v1.0.16
[INFO] [stderr]     Checking url v1.7.2
[INFO] [stderr]     Checking url v2.1.1
[INFO] [stderr]     Checking cookie v0.12.0
[INFO] [stderr]     Checking webpki v0.21.2
[INFO] [stderr]     Checking sct v0.6.0
[INFO] [stderr]     Checking webpki-roots v0.18.0
[INFO] [stderr]     Checking rustls v0.16.0
[INFO] [stderr]     Checking ureq v0.11.4
[INFO] [stderr]    Compiling serde_derive v1.0.104
[INFO] [stderr]     Checking serde v1.0.104
[INFO] [stderr]     Checking toml v0.5.6
[INFO] [stderr]     Checking vanguard-rs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 32.18s
[INFO] running `Command { std: "docker" "inspect" "f5e29c473e13c8e67ba02e840948ad046a5dc200973c4cd711a80bb932699024", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f5e29c473e13c8e67ba02e840948ad046a5dc200973c4cd711a80bb932699024", kill_on_drop: false }`
[INFO] [stdout] f5e29c473e13c8e67ba02e840948ad046a5dc200973c4cd711a80bb932699024