[INFO] cloning repository https://github.com/jawwadturabi/Simple_rust_server
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jawwadturabi/Simple_rust_server" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjawwadturabi%2FSimple_rust_server", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjawwadturabi%2FSimple_rust_server'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e47e5e43791714b8f50bdbdfb19c12aada0e9fae
[INFO] checking jawwadturabi/Simple_rust_server against try#ff044a3d65d25a17c3e14c1530004e1540179ba7 for pr-78338
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjawwadturabi%2FSimple_rust_server" "/workspace/builds/worker-0/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jawwadturabi/Simple_rust_server on toolchain ff044a3d65d25a17c3e14c1530004e1540179ba7
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ff044a3d65d25a17c3e14c1530004e1540179ba7" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/jawwadturabi/Simple_rust_server
[INFO] finished tweaking git repo https://github.com/jawwadturabi/Simple_rust_server
[INFO] tweaked toml for git repo https://github.com/jawwadturabi/Simple_rust_server written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/jawwadturabi/Simple_rust_server already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ff044a3d65d25a17c3e14c1530004e1540179ba7" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] error: the lock file /workspace/builds/worker-0/source/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] [stderr] If you want to try to generate the lock file without accessing the network, use the --offline flag.
[INFO] the lockfile is outdated, regenerating it
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ff044a3d65d25a17c3e14c1530004e1540179ba7" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ff044a3d65d25a17c3e14c1530004e1540179ba7" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded simple-server v0.4.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "+ff044a3d65d25a17c3e14c1530004e1540179ba7" "metadata" "--no-deps" "--format-version=1", 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] 5258c1ca0532d0f373afa89033a0d87b2c4e4e2bae82ac3d582e89bb4460868e
[INFO] running `Command { std: "docker" "start" "-a" "5258c1ca0532d0f373afa89033a0d87b2c4e4e2bae82ac3d582e89bb4460868e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5258c1ca0532d0f373afa89033a0d87b2c4e4e2bae82ac3d582e89bb4460868e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5258c1ca0532d0f373afa89033a0d87b2c4e4e2bae82ac3d582e89bb4460868e", kill_on_drop: false }`
[INFO] [stdout] 5258c1ca0532d0f373afa89033a0d87b2c4e4e2bae82ac3d582e89bb4460868e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "+ff044a3d65d25a17c3e14c1530004e1540179ba7" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 66c2520f28bcde38402f84b748a637f22070f3673c297c9b76704337d2c963d7
[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" "66c2520f28bcde38402f84b748a637f22070f3673c297c9b76704337d2c963d7", kill_on_drop: false }`
[INFO] [stderr]     Checking fnv v1.0.7
[INFO] [stderr]     Checking itoa v0.4.6
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking bytes v0.4.12
[INFO] [stderr]     Checking httparse v1.3.4
[INFO] [stderr]     Checking log v0.3.9
[INFO] [stderr]     Checking http v0.1.21
[INFO] [stderr]     Checking simple-server v0.4.0
[INFO] [stderr]     Checking hyper_test v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.94s
[INFO] running `Command { std: "docker" "inspect" "66c2520f28bcde38402f84b748a637f22070f3673c297c9b76704337d2c963d7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "66c2520f28bcde38402f84b748a637f22070f3673c297c9b76704337d2c963d7", kill_on_drop: false }`
[INFO] [stdout] 66c2520f28bcde38402f84b748a637f22070f3673c297c9b76704337d2c963d7