[INFO] cloning repository https://github.com/LearningOS/learn_rust_rustlings-daodao2007
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/LearningOS/learn_rust_rustlings-daodao2007" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLearningOS%2Flearn_rust_rustlings-daodao2007", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLearningOS%2Flearn_rust_rustlings-daodao2007'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d22f7fd8246e2439efdb4509cc8fa82a05c65cc0
[INFO] checking LearningOS/learn_rust_rustlings-daodao2007/d22f7fd8246e2439efdb4509cc8fa82a05c65cc0 against try#4d98531622e1718ae0bc3c7a1ab9cd8938428452+rustflags=-Dtail_expr_drop_order for pr-129604
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLearningOS%2Flearn_rust_rustlings-daodao2007" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/LearningOS/learn_rust_rustlings-daodao2007 on toolchain 4d98531622e1718ae0bc3c7a1ab9cd8938428452
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4d98531622e1718ae0bc3c7a1ab9cd8938428452" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/LearningOS/learn_rust_rustlings-daodao2007
[INFO] finished tweaking git repo https://github.com/LearningOS/learn_rust_rustlings-daodao2007
[INFO] tweaked toml for git repo https://github.com/LearningOS/learn_rust_rustlings-daodao2007 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/LearningOS/learn_rust_rustlings-daodao2007 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" "+4d98531622e1718ae0bc3c7a1ab9cd8938428452" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 1 package to latest compatible version
[INFO] [stderr]     Updating rustlings v4.7.1 (/workspace/builds/worker-5-tc2/source) -> v4.8.0
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+4d98531622e1718ae0bc3c7a1ab9cd8938428452" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 754fce15e5a31adec571b5cc766cb9d7ca83b54d14d470d90e11dfee5d9be10b
[INFO] running `Command { std: "docker" "start" "-a" "754fce15e5a31adec571b5cc766cb9d7ca83b54d14d470d90e11dfee5d9be10b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "754fce15e5a31adec571b5cc766cb9d7ca83b54d14d470d90e11dfee5d9be10b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "754fce15e5a31adec571b5cc766cb9d7ca83b54d14d470d90e11dfee5d9be10b", kill_on_drop: false }`
[INFO] [stdout] 754fce15e5a31adec571b5cc766cb9d7ca83b54d14d470d90e11dfee5d9be10b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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 -Dtail_expr_drop_order" "-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+4d98531622e1718ae0bc3c7a1ab9cd8938428452" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 796cc10f48967d500fbf06f8ba3d0f680555543b1ff12c937eba82237c70f540
[INFO] running `Command { std: "docker" "start" "-a" "796cc10f48967d500fbf06f8ba3d0f680555543b1ff12c937eba82237c70f540", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.100
[INFO] [stderr]    Compiling syn v1.0.75
[INFO] [stderr]    Compiling serde_derive v1.0.129
[INFO] [stderr]    Compiling serde v1.0.129
[INFO] [stderr]     Checking slab v0.4.4
[INFO] [stderr]     Checking itoa v1.0.2
[INFO] [stderr]    Compiling argh_shared v0.1.5
[INFO] [stderr]     Checking lazycell v1.3.0
[INFO] [stderr]     Checking walkdir v2.3.2
[INFO] [stderr]    Compiling escargot v0.4.0
[INFO] [stderr]     Checking number_prefix v0.4.0
[INFO] [stderr]     Checking predicates-core v1.0.2
[INFO] [stderr]     Checking float-cmp v0.8.0
[INFO] [stderr]     Checking difference v2.0.0
[INFO] [stderr]     Checking treeline v0.1.0
[INFO] [stderr]     Checking normalize-line-endings v0.3.0
[INFO] [stderr]     Checking predicates-tree v1.0.3
[INFO] [stderr]     Checking predicates v1.0.8
[INFO] [stdout] error: couldn't create a temp dir: No space left on device (os error 28) at path "/opt/rustwide/target/debug/deps/rmeta8I0ppR"
[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] running `Command { std: "docker" "inspect" "796cc10f48967d500fbf06f8ba3d0f680555543b1ff12c937eba82237c70f540", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "796cc10f48967d500fbf06f8ba3d0f680555543b1ff12c937eba82237c70f540", kill_on_drop: false }`
[INFO] [stdout] 796cc10f48967d500fbf06f8ba3d0f680555543b1ff12c937eba82237c70f540