[INFO] fetching crate arrayvec 0.7.6...
[INFO] checking arrayvec-0.7.6 against master#8f21a5c92ea55c348c275a1bc4fedbdf181e0d64 for pr-143011
[INFO] extracting crate arrayvec 0.7.6 into /workspace/builds/worker-0-tc1/source
[INFO] started tweaking crates.io crate arrayvec 0.7.6
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate arrayvec 0.7.6
[INFO] tweaked toml for crates.io crate arrayvec 0.7.6 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate arrayvec 0.7.6 on toolchain 8f21a5c92ea55c348c275a1bc4fedbdf181e0d64
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8f21a5c92ea55c348c275a1bc4fedbdf181e0d64" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8f21a5c92ea55c348c275a1bc4fedbdf181e0d64" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 12 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8f21a5c92ea55c348c275a1bc4fedbdf181e0d64" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded bencher v0.1.5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8f21a5c92ea55c348c275a1bc4fedbdf181e0d64" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9a6d911b727ae61f79cb38270fcd78f9dbefe8bb035a374c2ae54121b70bdcb8
[INFO] running `Command { std: "docker" "start" "-a" "9a6d911b727ae61f79cb38270fcd78f9dbefe8bb035a374c2ae54121b70bdcb8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9a6d911b727ae61f79cb38270fcd78f9dbefe8bb035a374c2ae54121b70bdcb8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9a6d911b727ae61f79cb38270fcd78f9dbefe8bb035a374c2ae54121b70bdcb8", kill_on_drop: false }`
[INFO] [stdout] 9a6d911b727ae61f79cb38270fcd78f9dbefe8bb035a374c2ae54121b70bdcb8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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=forbid" "-e" "RUSTDOCFLAGS=--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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8f21a5c92ea55c348c275a1bc4fedbdf181e0d64" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f28f23b28f38d97593add3b66a924d675255063cc6bc488e6ee8902e77e9f024
[INFO] running `Command { std: "docker" "start" "-a" "f28f23b28f38d97593add3b66a924d675255063cc6bc488e6ee8902e77e9f024", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.219
[INFO] [stderr]     Checking bencher v0.1.5
[INFO] [stderr]     Checking matches v0.1.10
[INFO] [stderr]     Checking arrayvec v0.7.6 (/opt/rustwide/workdir)
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]    --> src/arrayvec.rs:605:21
[INFO] [stdout]     |
[INFO] [stdout] 605 |     pub fn drain<R>(&mut self, range: R) -> Drain<T, CAP>
[INFO] [stdout]     |                     ^^^^^^^^^               ------------- the lifetime gets resolved as `'_`
[INFO] [stdout]     |                     |
[INFO] [stdout]     |                     this lifetime flows to the output
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]     |
[INFO] [stdout] 605 |     pub fn drain<R>(&mut self, range: R) -> Drain<'_, T, CAP>
[INFO] [stdout]     |                                                   +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]    --> src/arrayvec.rs:632:20
[INFO] [stdout]     |
[INFO] [stdout] 632 |     fn drain_range(&mut self, start: usize, end: usize) -> Drain<T, CAP>
[INFO] [stdout]     |                    ^^^^^^^^^                               ------------- the lifetime gets resolved as `'_`
[INFO] [stdout]     |                    |
[INFO] [stdout]     |                    this lifetime flows to the output
[INFO] [stdout]     |
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]     |
[INFO] [stdout] 632 |     fn drain_range(&mut self, start: usize, end: usize) -> Drain<'_, T, CAP>
[INFO] [stdout]     |                                                                  +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: couldn't create a temp dir: No space left on device (os error 28) at path "/opt/rustwide/target/debug/deps/rmetav8CfF0"
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `serde` (lib) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "f28f23b28f38d97593add3b66a924d675255063cc6bc488e6ee8902e77e9f024", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f28f23b28f38d97593add3b66a924d675255063cc6bc488e6ee8902e77e9f024", kill_on_drop: false }`
[INFO] [stdout] f28f23b28f38d97593add3b66a924d675255063cc6bc488e6ee8902e77e9f024
