[INFO] cloning repository https://github.com/domsj/rust-sd
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/domsj/rust-sd" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdomsj%2Frust-sd", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdomsj%2Frust-sd'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 756a9ebeb6ab0ce986538fe45cc345d8383220ac
[INFO] checking domsj/rust-sd against try#32cb8dc6fdc8140b91f4d17c4883e528db4e7e6d for pr-83312
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdomsj%2Frust-sd" "/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/domsj/rust-sd on toolchain 32cb8dc6fdc8140b91f4d17c4883e528db4e7e6d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+32cb8dc6fdc8140b91f4d17c4883e528db4e7e6d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/domsj/rust-sd
[INFO] finished tweaking git repo https://github.com/domsj/rust-sd
[INFO] tweaked toml for git repo https://github.com/domsj/rust-sd written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/domsj/rust-sd already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+32cb8dc6fdc8140b91f4d17c4883e528db4e7e6d" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] Blocking waiting for file lock on package cache
[INFO] [stderr] Blocking waiting for file lock on package cache
[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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+32cb8dc6fdc8140b91f4d17c4883e528db4e7e6d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1e32decc0835cd933d6d35f2432fd2dad7d951eeec79e70ed6600c24c1095ae5
[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" "1e32decc0835cd933d6d35f2432fd2dad7d951eeec79e70ed6600c24c1095ae5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1e32decc0835cd933d6d35f2432fd2dad7d951eeec79e70ed6600c24c1095ae5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1e32decc0835cd933d6d35f2432fd2dad7d951eeec79e70ed6600c24c1095ae5", kill_on_drop: false }`
[INFO] [stdout] 1e32decc0835cd933d6d35f2432fd2dad7d951eeec79e70ed6600c24c1095ae5
[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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+32cb8dc6fdc8140b91f4d17c4883e528db4e7e6d" "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] c8897b80462db4341da8c43ec36a456931f02644ecefeb5dc2ae33e983d8c436
[INFO] running `Command { std: "docker" "start" "-a" "c8897b80462db4341da8c43ec36a456931f02644ecefeb5dc2ae33e983d8c436", kill_on_drop: false }`
[INFO] [stderr] Checking libc v0.2.34
[INFO] [stderr] Checking log v0.3.8
[INFO] [stderr] Checking num-traits v0.1.41
[INFO] [stderr] Checking serde v1.0.23
[INFO] [stderr] Compiling serde_derive_internals v0.17.0
[INFO] [stderr] Checking iovec v0.1.1
[INFO] [stderr] Checking net2 v0.2.31
[INFO] [stderr] Checking num_cpus v1.7.0
[INFO] [stderr] Checking rand v0.3.18
[INFO] [stderr] Checking nix v0.9.0
[INFO] [stderr] Checking futures-cpupool v0.1.7
[INFO] [stderr] Checking bytes v0.4.5
[INFO] [stderr] Compiling serde_derive v1.0.23
[INFO] [stderr] Checking mio v0.6.11
[INFO] [stderr] Checking tokio-io v0.1.4
[INFO] [stderr] Checking tokio-core v0.1.10
[INFO] [stderr] Checking tokio-proto v0.1.1
[INFO] [stderr] Checking serde_json v1.0.7
[INFO] [stderr] Checking rust_sd v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout] --> src/main.rs:98:67
[INFO] [stdout] |
[INFO] [stdout] 98 | fn decode(&mut self, buf: &mut BytesMut) -> Result