[INFO] fetching crate winter-maybe-async 0.11.0...
[INFO] checking winter-maybe-async-0.11.0 against master#01706e1a34c87656fcbfce198608f4cd2ac6461a for pr-135272
[INFO] extracting crate winter-maybe-async 0.11.0 into /workspace/builds/worker-1-tc1/source
[INFO] validating manifest of crates.io crate winter-maybe-async 0.11.0 on toolchain 01706e1a34c87656fcbfce198608f4cd2ac6461a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+01706e1a34c87656fcbfce198608f4cd2ac6461a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate winter-maybe-async 0.11.0
[INFO] finished tweaking crates.io crate winter-maybe-async 0.11.0
[INFO] tweaked toml for crates.io crate winter-maybe-async 0.11.0 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+01706e1a34c87656fcbfce198608f4cd2ac6461a" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 4 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+01706e1a34c87656fcbfce198608f4cd2ac6461a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:819108c5571ea2e421544af4d832f968d213c87fbe3707a016657f43d2f853bc" "/opt/rustwide/cargo-home/bin/cargo" "+01706e1a34c87656fcbfce198608f4cd2ac6461a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0efcb097a0773c3f93cfcf7d28dfa3f6b6e6c517c74a432c1d87fdf1676e1f57
[INFO] running `Command { std: "docker" "start" "-a" "0efcb097a0773c3f93cfcf7d28dfa3f6b6e6c517c74a432c1d87fdf1676e1f57", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0efcb097a0773c3f93cfcf7d28dfa3f6b6e6c517c74a432c1d87fdf1676e1f57", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0efcb097a0773c3f93cfcf7d28dfa3f6b6e6c517c74a432c1d87fdf1676e1f57", kill_on_drop: false }`
[INFO] [stdout] 0efcb097a0773c3f93cfcf7d28dfa3f6b6e6c517c74a432c1d87fdf1676e1f57
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:819108c5571ea2e421544af4d832f968d213c87fbe3707a016657f43d2f853bc" "/opt/rustwide/cargo-home/bin/cargo" "+01706e1a34c87656fcbfce198608f4cd2ac6461a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 460886d74cf8832212b67fddfcca920916c680729e87558b90dbc1d7efe6f7d2
[INFO] running `Command { std: "docker" "start" "-a" "460886d74cf8832212b67fddfcca920916c680729e87558b90dbc1d7efe6f7d2", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.93
[INFO] [stderr]     Checking unicode-ident v1.0.14
[INFO] [stderr] error: failed to run custom build command for `proc-macro2 v1.0.93`
[INFO] [stderr] note: To improve backtraces for build dependencies, set the CARGO_PROFILE_DEV_BUILD_OVERRIDE_DEBUG=true environment variable to enable debug information generation.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/build/proc-macro2-e0c068ab4a66d0a8/build-script-build` (exit status: 1)
[INFO] [stderr]   --- stdout
[INFO] [stderr]   cargo:rustc-check-cfg=cfg(fuzzing)
[INFO] [stderr]   cargo:rustc-check-cfg=cfg(no_is_available)
[INFO] [stderr]   cargo:rustc-check-cfg=cfg(no_literal_byte_character)
[INFO] [stderr]   cargo:rustc-check-cfg=cfg(no_literal_c_string)
[INFO] [stderr]   cargo:rustc-check-cfg=cfg(no_source_text)
[INFO] [stderr]   cargo:rustc-check-cfg=cfg(proc_macro_span)
[INFO] [stderr]   cargo:rustc-check-cfg=cfg(procmacro2_backtrace)
[INFO] [stderr]   cargo:rustc-check-cfg=cfg(procmacro2_nightly_testing)
[INFO] [stderr]   cargo:rustc-check-cfg=cfg(procmacro2_semver_exempt)
[INFO] [stderr]   cargo:rustc-check-cfg=cfg(randomize_layout)
[INFO] [stderr]   cargo:rustc-check-cfg=cfg(span_locations)
[INFO] [stderr]   cargo:rustc-check-cfg=cfg(super_unstable)
[INFO] [stderr]   cargo:rustc-check-cfg=cfg(wrap_proc_macro)
[INFO] [stderr]   cargo:rerun-if-changed=build/probe.rs
[INFO] [stderr] 
[INFO] [stderr]   --- stderr
[INFO] [stderr]   Failed to create /opt/rustwide/target/debug/build/proc-macro2-ffbc31d8e2e9cbfd/out/probe: No space left on device (os error 28)
[INFO] running `Command { std: "docker" "inspect" "460886d74cf8832212b67fddfcca920916c680729e87558b90dbc1d7efe6f7d2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "460886d74cf8832212b67fddfcca920916c680729e87558b90dbc1d7efe6f7d2", kill_on_drop: false }`
[INFO] [stdout] 460886d74cf8832212b67fddfcca920916c680729e87558b90dbc1d7efe6f7d2