[INFO] fetching crate qemu-system-xtensaeb 0.1.0...
[INFO] checking qemu-system-xtensaeb-0.1.0 against master#092a284ba0421695f2032c947765429fd7095796 for pr-139763
[INFO] extracting crate qemu-system-xtensaeb 0.1.0 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate qemu-system-xtensaeb 0.1.0 on toolchain 092a284ba0421695f2032c947765429fd7095796
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+092a284ba0421695f2032c947765429fd7095796" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate qemu-system-xtensaeb 0.1.0
[INFO] finished tweaking crates.io crate qemu-system-xtensaeb 0.1.0
[INFO] tweaked toml for crates.io crate qemu-system-xtensaeb 0.1.0 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate crates.io crate qemu-system-xtensaeb 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" "+092a284ba0421695f2032c947765429fd7095796" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr] warning: failed to write cache, path: /workspace/cargo-home/registry/index/index.crates.io-1949cf8c6b5b557f/.cache/qe/mu/qemu, error: No space left on device (os error 28)
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded memfd-exec v0.1.4
[INFO] [stderr]   Downloaded qemu v0.1.6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+092a284ba0421695f2032c947765429fd7095796" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 19f714ca806ed579a7f745057024c8a7eac983e65520a27252401f6f9a7a4dd3
[INFO] running `Command { std: "docker" "start" "-a" "19f714ca806ed579a7f745057024c8a7eac983e65520a27252401f6f9a7a4dd3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "19f714ca806ed579a7f745057024c8a7eac983e65520a27252401f6f9a7a4dd3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "19f714ca806ed579a7f745057024c8a7eac983e65520a27252401f6f9a7a4dd3", kill_on_drop: false }`
[INFO] [stdout] 19f714ca806ed579a7f745057024c8a7eac983e65520a27252401f6f9a7a4dd3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+092a284ba0421695f2032c947765429fd7095796" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 77174cea23cd680be408977bdbfffc8cf075e1ef67027488b581329c3964527e
[INFO] running `Command { std: "docker" "start" "-a" "77174cea23cd680be408977bdbfffc8cf075e1ef67027488b581329c3964527e", kill_on_drop: false }`
[INFO] [stderr] error: failed to select a version for the requirement `qemu = "^0.1.5"` (locked to 0.1.6)
[INFO] [stderr] candidate versions found which didn't match: 0.1.4, 0.1.3, 0.1.2, ...
[INFO] [stderr] location searched: crates.io index
[INFO] [stderr] required by package `qemu-system-xtensaeb v0.1.0 (/opt/rustwide/workdir)`
[INFO] [stderr] As a reminder, you're using offline mode (--frozen) which can sometimes cause surprising resolution failures, if this error is too confusing you may wish to retry without `--frozen`.
[INFO] running `Command { std: "docker" "inspect" "77174cea23cd680be408977bdbfffc8cf075e1ef67027488b581329c3964527e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "77174cea23cd680be408977bdbfffc8cf075e1ef67027488b581329c3964527e", kill_on_drop: false }`
[INFO] [stdout] 77174cea23cd680be408977bdbfffc8cf075e1ef67027488b581329c3964527e