[INFO] fetching crate indexed-ring-buffer 0.1.3...
[INFO] checking indexed-ring-buffer-0.1.3 against try#723ab942d877517caf445dafde0416803ef56501 for pr-143857
[INFO] extracting crate indexed-ring-buffer 0.1.3 into /workspace/builds/worker-1-tc2/source
[INFO] started tweaking crates.io crate indexed-ring-buffer 0.1.3
[INFO] finished tweaking crates.io crate indexed-ring-buffer 0.1.3
[INFO] tweaked toml for crates.io crate indexed-ring-buffer 0.1.3 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate indexed-ring-buffer 0.1.3 on toolchain 723ab942d877517caf445dafde0416803ef56501
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+723ab942d877517caf445dafde0416803ef56501" "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" "+723ab942d877517caf445dafde0416803ef56501" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 66 packages to latest compatible versions
[INFO] [stderr]       Adding criterion v0.2.11 (available: v0.6.0)
[INFO] [stderr]       Adding parking_lot v0.10.2 (available: v0.12.4)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+723ab942d877517caf445dafde0416803ef56501" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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" "+723ab942d877517caf445dafde0416803ef56501" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 34fcdd4b804feaf5cf05efb4e259580e04458af34cb0cca32a6a211ef31f15a7
[INFO] running `Command { std: "docker" "start" "-a" "34fcdd4b804feaf5cf05efb4e259580e04458af34cb0cca32a6a211ef31f15a7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "34fcdd4b804feaf5cf05efb4e259580e04458af34cb0cca32a6a211ef31f15a7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "34fcdd4b804feaf5cf05efb4e259580e04458af34cb0cca32a6a211ef31f15a7", kill_on_drop: false }`
[INFO] [stdout] 34fcdd4b804feaf5cf05efb4e259580e04458af34cb0cca32a6a211ef31f15a7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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" "+723ab942d877517caf445dafde0416803ef56501" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 234845a660583e26cdb12601c07aa2737568b591f8b382b38e71f6b7b3efb796
[INFO] running `Command { std: "docker" "start" "-a" "234845a660583e26cdb12601c07aa2737568b591f8b382b38e71f6b7b3efb796", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.174
[INFO] [stderr]    Compiling semver v1.0.26
[INFO] [stderr]    Compiling crossbeam-utils v0.8.21
[INFO] [stderr]    Compiling proc-macro2 v1.0.95
[INFO] [stderr]    Compiling serde v1.0.219
[INFO] [stderr]    Compiling unicode-ident v1.0.18
[INFO] [stderr]     Checking memchr v2.7.5
[INFO] [stderr]     Checking ryu v1.0.20
[INFO] [stderr]     Checking either v1.15.0
[INFO] [stderr]    Compiling serde_json v1.0.140
[INFO] [stderr]     Checking rand_core v0.4.2
[INFO] [stderr]     Checking itoa v1.0.15
[INFO] [stderr]    Compiling rayon-core v1.12.1
[INFO] [stderr]    Compiling autocfg v1.5.0
[INFO] [stderr]     Checking scopeguard v1.2.0
[INFO] [stderr]     Checking byteorder v1.5.0
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking smallvec v1.15.1
[INFO] [stderr]     Checking unicode-width v0.1.14
[INFO] [stderr]     Checking lock_api v0.3.4
[INFO] [stderr]     Checking same-file v1.0.6
[INFO] [stderr]     Checking bitflags v1.3.2
[INFO] [stderr]     Checking csv-core v0.1.12
[INFO] [stderr]     Checking lazy_static v1.5.0
[INFO] [stderr]     Checking walkdir v2.5.0
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]     Checking itertools v0.8.2
[INFO] [stderr]     Checking rand_xoshiro v0.1.0
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling rustc_version v0.4.1
[INFO] [stderr]     Checking clap v2.34.0
[INFO] [stderr]     Checking parking_lot_core v0.7.3
[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]    Compiling cast v0.2.7
[INFO] [stderr]     Checking crossbeam-epoch v0.9.18
[INFO] [stderr]     Checking parking_lot v0.10.2
[INFO] [stderr]     Checking criterion-plot v0.3.1
[INFO] [stderr]     Checking crossbeam-deque v0.8.6
[INFO] [stderr]     Checking indexed-ring-buffer v0.1.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stdout]    --> src/lib.rs:168:13
[INFO] [stdout]     |
[INFO] [stdout] 168 |             mem::replace(buf.get_unchecked_mut(tail), MaybeUninit::new(v));
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 168 |             let _ = mem::replace(buf.get_unchecked_mut(tail), MaybeUninit::new(v));
[INFO] [stdout]     |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling quote v1.0.40
[INFO] [stderr]    Compiling syn v2.0.104
[INFO] [stderr]     Checking rayon v1.10.0
[INFO] [stderr]     Checking csv v1.3.1
[INFO] [stderr]    Compiling serde_derive v1.0.219
[INFO] [stderr]     Checking tinytemplate v1.2.1
[INFO] [stderr] rustc-LLVM ERROR: IO failure on output stream: No space left on device
[INFO] [stderr] error: could not compile `serde_derive` (lib)
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   No space left on device (os error 28)
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   failed to parse process output: `/opt/rustwide/rustup-home/toolchains/723ab942d877517caf445dafde0416803ef56501/bin/rustc --crate-name serde_derive --edition=2015 /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/serde_derive-1.0.219/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --crate-type proc-macro --emit=dep-info,link -C prefer-dynamic -C embed-bitcode=no --cfg 'feature="default"' --check-cfg 'cfg(docsrs,test)' --check-cfg 'cfg(feature, values("default", "deserialize_in_place"))' -C metadata=3c4e23f505da0da6 -C extra-filename=-5d3d95eb3ad8700a --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-474fc58659f14650.rlib --extern quote=/opt/rustwide/target/debug/deps/libquote-80f7c04ba8922890.rlib --extern syn=/opt/rustwide/target/debug/deps/libsyn-89c9fe0ffd710c48.rlib --extern proc_macro --cap-lints allow --cap-lints=forbid` (exit status: 101)
[INFO] running `Command { std: "docker" "inspect" "234845a660583e26cdb12601c07aa2737568b591f8b382b38e71f6b7b3efb796", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "234845a660583e26cdb12601c07aa2737568b591f8b382b38e71f6b7b3efb796", kill_on_drop: false }`
[INFO] [stdout] 234845a660583e26cdb12601c07aa2737568b591f8b382b38e71f6b7b3efb796