[INFO] fetching crate acme-macros 0.3.1...
[INFO] checking acme-macros-0.3.1 against master#64b185eddaa1d7ddf5e0c024be23b9cbba6c1722 for pr-143929
[INFO] extracting crate acme-macros 0.3.1 into /workspace/builds/worker-3-tc1/source
[INFO] started tweaking crates.io crate acme-macros 0.3.1
[INFO] finished tweaking crates.io crate acme-macros 0.3.1
[INFO] tweaked toml for crates.io crate acme-macros 0.3.1 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate acme-macros 0.3.1 on toolchain 64b185eddaa1d7ddf5e0c024be23b9cbba6c1722
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+64b185eddaa1d7ddf5e0c024be23b9cbba6c1722" "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" "+64b185eddaa1d7ddf5e0c024be23b9cbba6c1722" "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 13 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+64b185eddaa1d7ddf5e0c024be23b9cbba6c1722" "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-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:e8955075918b6d00525c617f7c34ee2595c70db70b3cf844dc875e4d3604499b" "/opt/rustwide/cargo-home/bin/cargo" "+64b185eddaa1d7ddf5e0c024be23b9cbba6c1722" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b239ec0c525ea93de9ff57786a54d5a401447471164c8d9c00bacdfbad282724
[INFO] running `Command { std: "docker" "start" "-a" "b239ec0c525ea93de9ff57786a54d5a401447471164c8d9c00bacdfbad282724", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b239ec0c525ea93de9ff57786a54d5a401447471164c8d9c00bacdfbad282724", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b239ec0c525ea93de9ff57786a54d5a401447471164c8d9c00bacdfbad282724", kill_on_drop: false }`
[INFO] [stdout] b239ec0c525ea93de9ff57786a54d5a401447471164c8d9c00bacdfbad282724
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:e8955075918b6d00525c617f7c34ee2595c70db70b3cf844dc875e4d3604499b" "/opt/rustwide/cargo-home/bin/cargo" "+64b185eddaa1d7ddf5e0c024be23b9cbba6c1722" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ac26ba89e63a22453e7e191c3c28add0b33d6e7d8906158d7c8b68b48b37ae8a
[INFO] running `Command { std: "docker" "start" "-a" "ac26ba89e63a22453e7e191c3c28add0b33d6e7d8906158d7c8b68b48b37ae8a", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.5.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.95
[INFO] [stderr]     Checking unicode-ident v1.0.18
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]     Checking quote v1.0.40
[INFO] [stderr]     Checking syn v2.0.104
[INFO] [stderr]     Checking num-integer v0.1.46
[INFO] [stderr]     Checking num-complex v0.4.6
[INFO] [stderr]     Checking approx v0.5.1
[INFO] [stderr]     Checking num-bigint v0.4.6
[INFO] [stderr]     Checking num-iter v0.1.45
[INFO] [stderr]     Checking num-rational v0.4.2
[INFO] [stderr]     Checking num v0.4.3
[INFO] [stderr]    Compiling acme-macros v0.3.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: enum `Error` is never used
[INFO] [stdout]  --> src/error.rs:7:10
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub enum Error {
[INFO] [stdout]   |          ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `Result` is never used
[INFO] [stdout]   --> src/lib.rs:96:14
[INFO] [stdout]    |
[INFO] [stdout] 96 |     pub type Result<T = ()> = std::result::Result<T, crate::Error>;
[INFO] [stdout]    |              ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Error` is never used
[INFO] [stdout]  --> src/error.rs:7:10
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub enum Error {
[INFO] [stdout]   |          ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `Result` is never used
[INFO] [stdout]   --> src/lib.rs:96:14
[INFO] [stdout]    |
[INFO] [stdout] 96 |     pub type Result<T = ()> = std::result::Result<T, crate::Error>;
[INFO] [stdout]    |              ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Error` is never used
[INFO] [stdout]  --> src/error.rs:7:10
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub enum Error {
[INFO] [stdout]   |          ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `Result` is never used
[INFO] [stdout]   --> src/lib.rs:96:14
[INFO] [stdout]    |
[INFO] [stdout] 96 |     pub type Result<T = ()> = std::result::Result<T, crate::Error>;
[INFO] [stdout]    |              ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] rustc-LLVM ERROR: IO failure on output stream: No space left on device
[INFO] [stderr] error: could not compile `acme-macros` (lib); 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/rustup-home/toolchains/64b185eddaa1d7ddf5e0c024be23b9cbba6c1722/bin/rustc --crate-name acme_macros --edition=2021 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 --check-cfg 'cfg(docsrs,test)' --check-cfg 'cfg(feature, values())' -C metadata=e5dd7d22ceab68a5 -C extra-filename=-44411af65509d59a --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern num=/opt/rustwide/target/debug/deps/libnum-843eb989b1fb2c8d.rlib --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-76d7016fccecc1d0.rlib --extern quote=/opt/rustwide/target/debug/deps/libquote-dc594f67782e5dde.rlib --extern syn=/opt/rustwide/target/debug/deps/libsyn-e3e6d226b06bbcc0.rlib --extern proc_macro --cap-lints=forbid` (exit status: 101)
[INFO] running `Command { std: "docker" "inspect" "ac26ba89e63a22453e7e191c3c28add0b33d6e7d8906158d7c8b68b48b37ae8a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ac26ba89e63a22453e7e191c3c28add0b33d6e7d8906158d7c8b68b48b37ae8a", kill_on_drop: false }`
[INFO] [stdout] ac26ba89e63a22453e7e191c3c28add0b33d6e7d8906158d7c8b68b48b37ae8a