[INFO] fetching crate perf-count 0.1.0...
[INFO] testing perf-count-0.1.0 against 1.95.0 for beta-1.96-1
[INFO] extracting crate perf-count 0.1.0 into /workspace/builds/worker-2-tc1/source
[INFO] removed /workspace/builds/worker-2-tc1/source/.cargo/config
[INFO] started tweaking crates.io crate perf-count 0.1.0
[INFO] finished tweaking crates.io crate perf-count 0.1.0
[INFO] tweaked toml for crates.io crate perf-count 0.1.0 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate perf-count 0.1.0 on toolchain 1.95.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.95.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate perf-count 0.1.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.95.0" "fetch" "--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]  Downloading crates ...
[INFO] [stderr]   Downloaded proc-macro2 v1.0.76
[INFO] [stderr]   Downloaded thiserror-impl v1.0.56
[INFO] [stderr]   Downloaded thiserror v1.0.56
[INFO] [stderr]   Downloaded quote v1.0.35
[INFO] [stderr]   Downloaded kperf-rs v0.1.1
[INFO] [stderr]   Downloaded version_check v0.1.5
[INFO] [stderr]   Downloaded cfg-if v1.0.0
[INFO] [stderr]   Downloaded rdrand v0.4.0
[INFO] [stderr]   Downloaded libc v0.1.12
[INFO] [stderr]   Downloaded remove_dir_all v0.5.3
[INFO] [stderr]   Downloaded tempdir v0.3.7
[INFO] [stderr]   Downloaded bitflags v1.3.2
[INFO] [stderr]   Downloaded rand_core v0.4.2
[INFO] [stderr]   Downloaded memchr v2.7.1
[INFO] [stderr]   Downloaded nom v4.2.3
[INFO] [stderr]   Downloaded syn v2.0.48
[INFO] [stderr]   Downloaded mmap v0.1.1
[INFO] [stderr]   Downloaded fuchsia-cprng v0.1.1
[INFO] [stderr]   Downloaded unicode-ident v1.0.12
[INFO] [stderr]   Downloaded rand_core v0.3.1
[INFO] [stderr]   Downloaded kperf-sys v0.0.3
[INFO] [stderr]   Downloaded libc v0.2.151
[INFO] [stderr]   Downloaded rand v0.4.6
[INFO] [stderr]   Downloaded winapi-i686-pc-windows-gnu v0.4.0
[INFO] [stderr]   Downloaded winapi v0.3.9
[INFO] [stderr]   Downloaded winapi-x86_64-pc-windows-gnu v0.4.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d018ff7992443a15d9d538298aa944c0b048d381b9de638e02f5c6b02630ffd5
[INFO] running `Command { std: "docker" "start" "-a" "d018ff7992443a15d9d538298aa944c0b048d381b9de638e02f5c6b02630ffd5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d018ff7992443a15d9d538298aa944c0b048d381b9de638e02f5c6b02630ffd5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d018ff7992443a15d9d538298aa944c0b048d381b9de638e02f5c6b02630ffd5", kill_on_drop: false }`
[INFO] [stdout] d018ff7992443a15d9d538298aa944c0b048d381b9de638e02f5c6b02630ffd5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 319704a16c0208d0b143fbb1fad850773fd6da3b34a4c11343180c89720c508f
[INFO] running `Command { std: "docker" "start" "-a" "319704a16c0208d0b143fbb1fad850773fd6da3b34a4c11343180c89720c508f", kill_on_drop: false }`
[INFO] [stderr] error: failed to create directory `/opt/rustwide/target/debug`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   No space left on device (os error 28)
[INFO] running `Command { std: "docker" "inspect" "319704a16c0208d0b143fbb1fad850773fd6da3b34a4c11343180c89720c508f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "319704a16c0208d0b143fbb1fad850773fd6da3b34a4c11343180c89720c508f", kill_on_drop: false }`
[INFO] [stdout] 319704a16c0208d0b143fbb1fad850773fd6da3b34a4c11343180c89720c508f