[INFO] fetching crate ufmt-stdio 0.4.0...
[INFO] checking ufmt-stdio-0.4.0 against master#336209eef13882bd1e211b24779584cb7ef911eb for pr-129249
[INFO] extracting crate ufmt-stdio 0.4.0 into /workspace/builds/worker-6-tc1/source
[INFO] validating manifest of crates.io crate ufmt-stdio 0.4.0 on toolchain 336209eef13882bd1e211b24779584cb7ef911eb
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+336209eef13882bd1e211b24779584cb7ef911eb" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate ufmt-stdio 0.4.0
[INFO] finished tweaking crates.io crate ufmt-stdio 0.4.0
[INFO] tweaked toml for crates.io crate ufmt-stdio 0.4.0 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+336209eef13882bd1e211b24779584cb7ef911eb" "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 19 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+336209eef13882bd1e211b24779584cb7ef911eb" "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-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+336209eef13882bd1e211b24779584cb7ef911eb" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] dce53d598d81fddf7981a057d10f4b453ddaa4c18e326d28599417a8e3e3cdeb
[INFO] running `Command { std: "docker" "start" "-a" "dce53d598d81fddf7981a057d10f4b453ddaa4c18e326d28599417a8e3e3cdeb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dce53d598d81fddf7981a057d10f4b453ddaa4c18e326d28599417a8e3e3cdeb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dce53d598d81fddf7981a057d10f4b453ddaa4c18e326d28599417a8e3e3cdeb", kill_on_drop: false }`
[INFO] [stdout] dce53d598d81fddf7981a057d10f4b453ddaa4c18e326d28599417a8e3e3cdeb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+336209eef13882bd1e211b24779584cb7ef911eb" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b0baaaf48b9b2ca2026a0973733c95069738e6e0da58bd4e1b2d59cc39812d0b
[INFO] running `Command { std: "docker" "start" "-a" "b0baaaf48b9b2ca2026a0973733c95069738e6e0da58bd4e1b2d59cc39812d0b", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.93
[INFO] [stderr]    Compiling unicode-ident v1.0.14
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling libc v0.2.169
[INFO] [stderr]     Checking ufmt-write v0.1.0
[INFO] [stderr]    Compiling quote v1.0.38
[INFO] [stdout] error: failed to write to `/opt/rustwide/target/debug/deps/rmetaMkh6Kj/lib.rmeta`: No space left on device (os error 28)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `syn` (lib) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "b0baaaf48b9b2ca2026a0973733c95069738e6e0da58bd4e1b2d59cc39812d0b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b0baaaf48b9b2ca2026a0973733c95069738e6e0da58bd4e1b2d59cc39812d0b", kill_on_drop: false }`
[INFO] [stdout] b0baaaf48b9b2ca2026a0973733c95069738e6e0da58bd4e1b2d59cc39812d0b