[INFO] fetching crate singleton-trait 0.4.0...
[INFO] testing singleton-trait-0.4.0 against try#8de4c7234dd9b97c9d76b58671343fdbbc9a433e+target=x86_64-unknown-linux-musl for musl_upgrade_1_2_5_with_getrandom_patch_2
[INFO] extracting crate singleton-trait 0.4.0 into /workspace/builds/worker-5-tc1/source
[INFO] started tweaking crates.io crate singleton-trait 0.4.0
[INFO] finished tweaking crates.io crate singleton-trait 0.4.0
[INFO] tweaked toml for crates.io crate singleton-trait 0.4.0 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate singleton-trait 0.4.0 on toolchain 8de4c7234dd9b97c9d76b58671343fdbbc9a433e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate singleton-trait 0.4.0 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" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "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-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 911b5c545284173da078691d7c011b165cd1747117433c7acfc2e9a37dfed147
[INFO] running `Command { std: "docker" "start" "-a" "911b5c545284173da078691d7c011b165cd1747117433c7acfc2e9a37dfed147", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "911b5c545284173da078691d7c011b165cd1747117433c7acfc2e9a37dfed147", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "911b5c545284173da078691d7c011b165cd1747117433c7acfc2e9a37dfed147", kill_on_drop: false }`
[INFO] [stdout] 911b5c545284173da078691d7c011b165cd1747117433c7acfc2e9a37dfed147
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "build" "--frozen" "--message-format=json" "--target" "x86_64-unknown-linux-musl", kill_on_drop: false }`
[INFO] [stdout] b8c0d71fd56fd7ace03edc62debac04ff07ddb3d15d71dddefcbd92202ef12b5
[INFO] running `Command { std: "docker" "start" "-a" "b8c0d71fd56fd7ace03edc62debac04ff07ddb3d15d71dddefcbd92202ef12b5", kill_on_drop: false }`
[INFO] [stderr]    Compiling singleton-trait v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.10s
[INFO] running `Command { std: "docker" "inspect" "b8c0d71fd56fd7ace03edc62debac04ff07ddb3d15d71dddefcbd92202ef12b5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b8c0d71fd56fd7ace03edc62debac04ff07ddb3d15d71dddefcbd92202ef12b5", kill_on_drop: false }`
[INFO] [stdout] b8c0d71fd56fd7ace03edc62debac04ff07ddb3d15d71dddefcbd92202ef12b5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "test" "--frozen" "--no-run" "--message-format=json" "--target" "x86_64-unknown-linux-musl", kill_on_drop: false }`
[INFO] [stdout] 7f8f1d218251526897b1775ab72424194c77d516988956dd08b2a923891a4c51
[INFO] running `Command { std: "docker" "start" "-a" "7f8f1d218251526897b1775ab72424194c77d516988956dd08b2a923891a4c51", kill_on_drop: false }`
[INFO] [stderr] error: failed to create directory `/opt/rustwide/target/x86_64-unknown-linux-musl/debug/.fingerprint/singleton-trait-d0e5e892a1596514`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   No space left on device (os error 28)
[INFO] running `Command { std: "docker" "inspect" "7f8f1d218251526897b1775ab72424194c77d516988956dd08b2a923891a4c51", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7f8f1d218251526897b1775ab72424194c77d516988956dd08b2a923891a4c51", kill_on_drop: false }`
[INFO] [stdout] 7f8f1d218251526897b1775ab72424194c77d516988956dd08b2a923891a4c51