[INFO] fetching crate cargo-weblabtest 0.2.36...
[INFO] checking cargo-weblabtest-0.2.36 against try#50b21af28e291c419ae81eebcb7705fb4200dc90 for pr-135167
[INFO] extracting crate cargo-weblabtest 0.2.36 into /workspace/builds/worker-4-tc2/source
[INFO] validating manifest of crates.io crate cargo-weblabtest 0.2.36 on toolchain 50b21af28e291c419ae81eebcb7705fb4200dc90
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+50b21af28e291c419ae81eebcb7705fb4200dc90" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate cargo-weblabtest 0.2.36
[INFO] finished tweaking crates.io crate cargo-weblabtest 0.2.36
[INFO] tweaked toml for crates.io crate cargo-weblabtest 0.2.36 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] crate crates.io crate cargo-weblabtest 0.2.36 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" "+50b21af28e291c419ae81eebcb7705fb4200dc90" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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" "+50b21af28e291c419ae81eebcb7705fb4200dc90" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8ad9fa45dc0aa4a49e24f6aa01b588d2ca4e96f78e6b98b99496a67a00824078
[INFO] running `Command { std: "docker" "start" "-a" "8ad9fa45dc0aa4a49e24f6aa01b588d2ca4e96f78e6b98b99496a67a00824078", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8ad9fa45dc0aa4a49e24f6aa01b588d2ca4e96f78e6b98b99496a67a00824078", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8ad9fa45dc0aa4a49e24f6aa01b588d2ca4e96f78e6b98b99496a67a00824078", kill_on_drop: false }`
[INFO] [stdout] 8ad9fa45dc0aa4a49e24f6aa01b588d2ca4e96f78e6b98b99496a67a00824078
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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" "+50b21af28e291c419ae81eebcb7705fb4200dc90" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 53bd3307c4c9f1f7e2703d510d7f2ac7e4c1d4c790a2c49df43cda611a8bdeca
[INFO] running `Command { std: "docker" "start" "-a" "53bd3307c4c9f1f7e2703d510d7f2ac7e4c1d4c790a2c49df43cda611a8bdeca", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.43
[INFO] [stderr]    Compiling quote v1.0.21
[INFO] [stderr]    Compiling unicode-ident v1.0.3
[INFO] [stderr]    Compiling syn v1.0.99
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling serde_derive v1.0.144
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling serde v1.0.144
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling serde_json v1.0.85
[INFO] [stderr]     Checking ryu v1.0.11
[INFO] [stderr]     Checking itoa v1.0.3
[INFO] [stderr]     Checking simple_xml_serialize v0.3.0
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stdout] error: failed to build archive at `/opt/rustwide/target/debug/deps/libsyn-e0dd4a88ad112103.rlib`: 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] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: error writing metadata object file: No space left on device (os error 28)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `serde_derive` (lib) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "53bd3307c4c9f1f7e2703d510d7f2ac7e4c1d4c790a2c49df43cda611a8bdeca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "53bd3307c4c9f1f7e2703d510d7f2ac7e4c1d4c790a2c49df43cda611a8bdeca", kill_on_drop: false }`
[INFO] [stdout] 53bd3307c4c9f1f7e2703d510d7f2ac7e4c1d4c790a2c49df43cda611a8bdeca