[INFO] fetching crate serde-bench 0.0.13...
[INFO] testing serde-bench-0.0.13 against try#17092ad00ed8fe1e7f81a7e38238ff70779034b1 for pr-140985
[INFO] extracting crate serde-bench 0.0.13 into /workspace/builds/worker-2-tc2/source
[INFO] validating manifest of crates.io crate serde-bench 0.0.13 on toolchain 17092ad00ed8fe1e7f81a7e38238ff70779034b1
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+17092ad00ed8fe1e7f81a7e38238ff70779034b1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate serde-bench 0.0.13
[INFO] finished tweaking crates.io crate serde-bench 0.0.13
[INFO] tweaked toml for crates.io crate serde-bench 0.0.13 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] crate crates.io crate serde-bench 0.0.13 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" "+17092ad00ed8fe1e7f81a7e38238ff70779034b1" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:eea15d5475069c3ef791f10c2c6b5af2ee421ef2da1e680ecce1cba46243983b" "/opt/rustwide/cargo-home/bin/cargo" "+17092ad00ed8fe1e7f81a7e38238ff70779034b1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 465298067d2ba7287475aa82effd078c99fc1ee5b6b95c4a3756c5a233fbde90
[INFO] running `Command { std: "docker" "start" "-a" "465298067d2ba7287475aa82effd078c99fc1ee5b6b95c4a3756c5a233fbde90", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "465298067d2ba7287475aa82effd078c99fc1ee5b6b95c4a3756c5a233fbde90", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "465298067d2ba7287475aa82effd078c99fc1ee5b6b95c4a3756c5a233fbde90", kill_on_drop: false }`
[INFO] [stdout] 465298067d2ba7287475aa82effd078c99fc1ee5b6b95c4a3756c5a233fbde90
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:eea15d5475069c3ef791f10c2c6b5af2ee421ef2da1e680ecce1cba46243983b" "/opt/rustwide/cargo-home/bin/cargo" "+17092ad00ed8fe1e7f81a7e38238ff70779034b1" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3eeb6f7cb6a9633817c2a47254e67775f386e8f371681e9f9e4842a078d2c237
[INFO] running `Command { std: "docker" "start" "-a" "3eeb6f7cb6a9633817c2a47254e67775f386e8f371681e9f9e4842a078d2c237", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.218
[INFO] [stderr]    Compiling byteorder v1.5.0
[INFO] [stderr]    Compiling serde-bench v0.0.13 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.87s
[INFO] running `Command { std: "docker" "inspect" "3eeb6f7cb6a9633817c2a47254e67775f386e8f371681e9f9e4842a078d2c237", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3eeb6f7cb6a9633817c2a47254e67775f386e8f371681e9f9e4842a078d2c237", kill_on_drop: false }`
[INFO] [stdout] 3eeb6f7cb6a9633817c2a47254e67775f386e8f371681e9f9e4842a078d2c237
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:eea15d5475069c3ef791f10c2c6b5af2ee421ef2da1e680ecce1cba46243983b" "/opt/rustwide/cargo-home/bin/cargo" "+17092ad00ed8fe1e7f81a7e38238ff70779034b1" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6c23e471108d0603ef95d19fcf54c5118ec17c2671bb00fc3624e7042a4663e7
[INFO] running `Command { std: "docker" "start" "-a" "6c23e471108d0603ef95d19fcf54c5118ec17c2671bb00fc3624e7042a4663e7", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.94
[INFO] [stderr]    Compiling unicode-ident v1.0.18
[INFO] [stderr]    Compiling semver v1.0.26
[INFO] [stderr]    Compiling autocfg v1.4.0
[INFO] [stderr]    Compiling serde v1.0.218
[INFO] [stderr]    Compiling scopeguard v1.2.0
[INFO] [stderr]    Compiling virtue v0.0.18
[INFO] [stderr]    Compiling hash32 v0.2.1
[INFO] [stderr]    Compiling stable_deref_trait v1.2.0
[INFO] [stderr]    Compiling unty v0.0.3
[INFO] [stderr]    Compiling cobs v0.2.3
[INFO] [stderr]    Compiling lock_api v0.4.12
[INFO] [stderr]    Compiling bincode_derive v2.0.0
[INFO] [stderr]    Compiling rustc_version v0.4.1
[INFO] [stderr]    Compiling heapless v0.7.17
[INFO] [stderr]    Compiling spin v0.9.8
[INFO] [stderr]    Compiling quote v1.0.39
[INFO] [stderr]    Compiling syn v2.0.99
[INFO] [stdout] error: failed to write /tmp/rustcUdZlNb/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" "6c23e471108d0603ef95d19fcf54c5118ec17c2671bb00fc3624e7042a4663e7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6c23e471108d0603ef95d19fcf54c5118ec17c2671bb00fc3624e7042a4663e7", kill_on_drop: false }`
[INFO] [stdout] 6c23e471108d0603ef95d19fcf54c5118ec17c2671bb00fc3624e7042a4663e7