[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 master#90442458ac46b1d5eed752c316da25450f67285b for pr-81477
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdomsj%2Frust-sd" "/workspace/builds/worker-15/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-15/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/domsj/rust-sd on toolchain 90442458ac46b1d5eed752c316da25450f67285b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+90442458ac46b1d5eed752c316da25450f67285b" "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-15/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" "+90442458ac46b1d5eed752c316da25450f67285b" "fetch" "--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-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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" "+90442458ac46b1d5eed752c316da25450f67285b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ace1a531af6030cf408b1887f4f21f5fb787e441c7ab81b0bd741ecaeb80e1b6
[INFO] running `Command { std: "docker" "start" "-a" "ace1a531af6030cf408b1887f4f21f5fb787e441c7ab81b0bd741ecaeb80e1b6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ace1a531af6030cf408b1887f4f21f5fb787e441c7ab81b0bd741ecaeb80e1b6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ace1a531af6030cf408b1887f4f21f5fb787e441c7ab81b0bd741ecaeb80e1b6", kill_on_drop: false }`
[INFO] [stdout] ace1a531af6030cf408b1887f4f21f5fb787e441c7ab81b0bd741ecaeb80e1b6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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" "+90442458ac46b1d5eed752c316da25450f67285b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ad92091405603014e77fcf1f3fa98451c87b5edcabd9edb2cab29c6ef83ce4d6
[INFO] running `Command { std: "docker" "start" "-a" "ad92091405603014e77fcf1f3fa98451c87b5edcabd9edb2cab29c6ef83ce4d6", kill_on_drop: false }`
[INFO] [stderr] Checking libc v0.2.34
[INFO] [stderr] Checking cfg-if v0.1.2
[INFO] [stderr] Checking futures v0.1.17
[INFO] [stderr] Checking byteorder v1.2.1
[INFO] [stderr] Checking log v0.3.8
[INFO] [stderr] Checking lazycell v0.5.1
[INFO] [stderr] Checking slab v0.4.0
[INFO] [stderr] Checking serde v1.0.23
[INFO] [stderr] Checking void v1.0.2
[INFO] [stderr] Checking dtoa v0.4.2
[INFO] [stderr] Checking num-traits v0.1.41
[INFO] [stderr] Checking itoa v0.3.4
[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 rand v0.3.18
[INFO] [stderr] Checking num_cpus v1.7.0
[INFO] [stderr] Checking nix v0.9.0
[INFO] [stderr] Checking bytes v0.4.5
[INFO] [stderr] Checking mio v0.6.11
[INFO] [stderr] Compiling serde_derive v1.0.23
[INFO] [stderr] Checking tokio-io v0.1.4
[INFO] [stderr] Checking tokio-service v0.1.0
[INFO] [stderr] Checking futures-cpupool v0.1.7
[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