[INFO] cloning repository https://github.com/mrkiffie/rust-maze-generator
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mrkiffie/rust-maze-generator" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmrkiffie%2Frust-maze-generator", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmrkiffie%2Frust-maze-generator'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0d98d90f1fa6e6ac1ad6b9c8cb0279d81c49fffd
[INFO] checking mrkiffie/rust-maze-generator against try#9d63f825c0d409b0e1743a2c84b33f86965e5929 for pr-136968
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmrkiffie%2Frust-maze-generator" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mrkiffie/rust-maze-generator on toolchain 9d63f825c0d409b0e1743a2c84b33f86965e5929
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+9d63f825c0d409b0e1743a2c84b33f86965e5929" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/mrkiffie/rust-maze-generator
[INFO] finished tweaking git repo https://github.com/mrkiffie/rust-maze-generator
[INFO] tweaked toml for git repo https://github.com/mrkiffie/rust-maze-generator written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/mrkiffie/rust-maze-generator 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" "+9d63f825c0d409b0e1743a2c84b33f86965e5929" "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@sha256:3959728d45483eb673ba100a951a6b9f5012970368db2a9e08e0ac9b67c8a5ad" "/opt/rustwide/cargo-home/bin/cargo" "+9d63f825c0d409b0e1743a2c84b33f86965e5929" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 65961b1716c4e77a4d27583726764618a217ab8c30e2d98c0a0d5a29f8ad945f
[INFO] running `Command { std: "docker" "start" "-a" "65961b1716c4e77a4d27583726764618a217ab8c30e2d98c0a0d5a29f8ad945f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "65961b1716c4e77a4d27583726764618a217ab8c30e2d98c0a0d5a29f8ad945f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "65961b1716c4e77a4d27583726764618a217ab8c30e2d98c0a0d5a29f8ad945f", kill_on_drop: false }`
[INFO] [stdout] 65961b1716c4e77a4d27583726764618a217ab8c30e2d98c0a0d5a29f8ad945f
[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@sha256:3959728d45483eb673ba100a951a6b9f5012970368db2a9e08e0ac9b67c8a5ad" "/opt/rustwide/cargo-home/bin/cargo" "+9d63f825c0d409b0e1743a2c84b33f86965e5929" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3f402865fab34aed4c5553f6c10fe359de0b0cd4a22336c2158a44ce55659f57
[INFO] running `Command { std: "docker" "start" "-a" "3f402865fab34aed4c5553f6c10fe359de0b0cd4a22336c2158a44ce55659f57", kill_on_drop: false }`
[INFO] [stderr]    Compiling version_check v0.9.4
[INFO] [stderr]    Compiling proc-macro2 v1.0.40
[INFO] [stderr]    Compiling libc v0.2.126
[INFO] [stderr]    Compiling quote v1.0.20
[INFO] [stderr]    Compiling unicode-ident v1.0.2
[INFO] [stderr]    Compiling syn v1.0.98
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]     Checking hashbrown v0.12.2
[INFO] [stderr]     Checking ppv-lite86 v0.2.16
[INFO] [stderr]    Compiling heck v0.4.0
[INFO] [stderr]     Checking os_str_bytes v6.1.0
[INFO] [stderr]     Checking termcolor v1.1.3
[INFO] [stderr]     Checking once_cell v1.13.0
[INFO] [stderr]     Checking strsim v0.10.0
[INFO] [stderr]     Checking textwrap v0.15.0
[INFO] [stderr]     Checking bitflags v1.3.2
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]     Checking clap_lex v0.2.4
[INFO] [stderr]    Compiling indexmap v1.9.1
[INFO] [stderr]     Checking getrandom v0.2.7
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stdout] error: failed to build archive at `/opt/rustwide/target/debug/deps/libsyn-2fe060f7a36f6687.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] running `Command { std: "docker" "inspect" "3f402865fab34aed4c5553f6c10fe359de0b0cd4a22336c2158a44ce55659f57", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3f402865fab34aed4c5553f6c10fe359de0b0cd4a22336c2158a44ce55659f57", kill_on_drop: false }`
[INFO] [stdout] 3f402865fab34aed4c5553f6c10fe359de0b0cd4a22336c2158a44ce55659f57