[INFO] fetching crate cargo-cache 0.8.2...
[INFO] testing cargo-cache-0.8.2 against try#28eff87d300677d3acc4d7129d31c74bf885cf6d for pr-94775
[INFO] extracting crate cargo-cache 0.8.2 into /workspace/builds/worker-111/source
[INFO] validating manifest of crates.io crate cargo-cache 0.8.2 on toolchain 28eff87d300677d3acc4d7129d31c74bf885cf6d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+28eff87d300677d3acc4d7129d31c74bf885cf6d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate cargo-cache 0.8.2
[INFO] finished tweaking crates.io crate cargo-cache 0.8.2
[INFO] tweaked toml for crates.io crate cargo-cache 0.8.2 written to /workspace/builds/worker-111/source/Cargo.toml
[INFO] crate crates.io crate cargo-cache 0.8.2 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+28eff87d300677d3acc4d7129d31c74bf885cf6d" "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-111/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-111/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@sha256:1ede1414886370302e694df474b9877c02906499f04c196936ce0973d30c5eaa" "/opt/rustwide/cargo-home/bin/cargo" "+28eff87d300677d3acc4d7129d31c74bf885cf6d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d14451d5528146067f4b63dcc3d6cb0ef20769f6d76b510c73b81e25fcd9dba9
[INFO] running `Command { std: "docker" "start" "-a" "d14451d5528146067f4b63dcc3d6cb0ef20769f6d76b510c73b81e25fcd9dba9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d14451d5528146067f4b63dcc3d6cb0ef20769f6d76b510c73b81e25fcd9dba9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d14451d5528146067f4b63dcc3d6cb0ef20769f6d76b510c73b81e25fcd9dba9", kill_on_drop: false }`
[INFO] [stdout] d14451d5528146067f4b63dcc3d6cb0ef20769f6d76b510c73b81e25fcd9dba9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-111/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-111/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@sha256:1ede1414886370302e694df474b9877c02906499f04c196936ce0973d30c5eaa" "/opt/rustwide/cargo-home/bin/cargo" "+28eff87d300677d3acc4d7129d31c74bf885cf6d" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 49eeaa467c6e1240f65ad694a00b809cb8d759f5f832200eb30bae913d9a4226
[INFO] running `Command { std: "docker" "start" "-a" "49eeaa467c6e1240f65ad694a00b809cb8d759f5f832200eb30bae913d9a4226", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.117
[INFO] [stderr]    Compiling syn v1.0.86
[INFO] [stderr]    Compiling serde_json v1.0.78
[INFO] [stderr]    Compiling semver v1.0.5
[INFO] [stderr]    Compiling rustc_tools_util v0.2.0
[INFO] [stderr]    Compiling bitflags v1.3.2
[INFO] [stderr]    Compiling humansize v1.1.1
[INFO] [stderr]    Compiling home v0.5.3
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling idna v0.2.3
[INFO] [stderr]    Compiling regex v1.5.4
[INFO] [stderr]    Compiling crossbeam-deque v0.8.1
[INFO] [stderr]    Compiling cargo-cache v0.8.2 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling url v2.2.2
[INFO] [stderr]    Compiling jobserver v0.1.24
[INFO] [stderr]    Compiling num_cpus v1.13.1
[INFO] [stderr]    Compiling terminal_size v0.1.17
[INFO] [stderr]    Compiling filetime v0.2.15
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling xattr v0.2.2
[INFO] [stderr]    Compiling dirs-sys-next v0.1.2
[INFO] [stderr]    Compiling time v0.1.44
[INFO] [stderr]    Compiling flate2 v1.0.22
[INFO] [stderr]    Compiling remove_dir_all v0.7.0
[INFO] [stderr]    Compiling rayon-core v1.9.1
[INFO] [stderr]    Compiling textwrap v0.14.2
[INFO] [stderr]    Compiling cc v1.0.72
[INFO] [stderr]    Compiling tar v0.4.38
[INFO] [stderr]    Compiling dirs-next v2.0.0
[INFO] [stderr]    Compiling clap v3.0.14
[INFO] [stderr]    Compiling rayon v1.5.1
[INFO] [stderr]    Compiling chrono v0.4.19
[INFO] [stderr]    Compiling libz-sys v1.1.3
[INFO] [stderr]    Compiling libgit2-sys v0.12.26+1.3.0
[INFO] [stderr]    Compiling serde_derive v1.0.136
[INFO] [stderr] error: could not compile `serde_derive`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name serde_derive /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/serde_derive-1.0.136/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 -C debuginfo=2 --cfg 'feature="default"' -C metadata=643399df20f5eb13 -C extra-filename=-643399df20f5eb13 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-d937f1f82ffb437d.rlib --extern quote=/opt/rustwide/target/debug/deps/libquote-4040e84c0ddb8645.rlib --extern syn=/opt/rustwide/target/debug/deps/libsyn-0ed3f484ddf76ce0.rlib --extern proc_macro --cap-lints allow --cap-lints=forbid --cfg underscore_consts --cfg ptr_addr_of` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "49eeaa467c6e1240f65ad694a00b809cb8d759f5f832200eb30bae913d9a4226", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "49eeaa467c6e1240f65ad694a00b809cb8d759f5f832200eb30bae913d9a4226", kill_on_drop: false }`
[INFO] [stdout] 49eeaa467c6e1240f65ad694a00b809cb8d759f5f832200eb30bae913d9a4226