[INFO] fetching crate leo-ast 1.0.8...
[INFO] checking leo-ast-1.0.8 against master#4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5 for pr-81174
[INFO] extracting crate leo-ast 1.0.8 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate leo-ast 1.0.8 on toolchain 4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate leo-ast 1.0.8
[INFO] finished tweaking crates.io crate leo-ast 1.0.8
[INFO] tweaked toml for crates.io crate leo-ast 1.0.8 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate crates.io crate leo-ast 1.0.8 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "rustops/crates-build-env@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d7860e7c736280a749951749349750c3bfce5ebea21f1de6bd34a3bf3e2ae8c4
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "d7860e7c736280a749951749349750c3bfce5ebea21f1de6bd34a3bf3e2ae8c4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d7860e7c736280a749951749349750c3bfce5ebea21f1de6bd34a3bf3e2ae8c4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d7860e7c736280a749951749349750c3bfce5ebea21f1de6bd34a3bf3e2ae8c4", kill_on_drop: false }`
[INFO] [stdout] d7860e7c736280a749951749349750c3bfce5ebea21f1de6bd34a3bf3e2ae8c4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] a8e50f70e35fcdb2138e2d494faed7c03c6433d3dab827c0ec18da35d4e39655
[INFO] running `Command { std: "docker" "start" "-a" "a8e50f70e35fcdb2138e2d494faed7c03c6433d3dab827c0ec18da35d4e39655", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.58
[INFO] [stderr]    Compiling serde_derive v1.0.119
[INFO] [stderr]    Compiling serde v1.0.119
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]     Checking half v1.6.0
[INFO] [stderr]     Checking regex-syntax v0.6.22
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]    Compiling backtrace v0.3.55
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking plotters v0.2.15
[INFO] [stderr]     Checking csv-core v0.1.10
[INFO] [stderr]     Checking regex v1.4.3
[INFO] [stderr]    Compiling synstructure v0.12.4
[INFO] [stderr]    Compiling pest_generator v2.1.3
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]    Compiling thiserror-impl v1.0.23
[INFO] [stderr]    Compiling tracing-attributes v0.1.11
[INFO] [stderr]    Compiling pest_derive v2.1.0
[INFO] [stderr]    Compiling failure v0.1.8
[INFO] [stderr]    Compiling single v1.0.0
[INFO] [stderr]    Compiling pest-ast v0.3.3
[INFO] [stderr]     Checking tracing v0.1.22
[INFO] [stderr]     Checking thiserror v1.0.23
[INFO] [stderr]     Checking leo-input v1.0.8
[INFO] [stderr]     Checking serde_json v1.0.61
[INFO] [stderr]     Checking bstr v0.2.14
[INFO] [stderr]     Checking indexmap v1.6.1
[INFO] [stderr]     Checking serde_cbor v0.11.1
[INFO] [stderr]     Checking csv v1.1.5
[INFO] [stderr]     Checking leo-grammar v1.0.8
[INFO] [stderr]     Checking tinytemplate v1.2.0
[INFO] [stderr]     Checking criterion v0.3.3
[INFO] [stderr]     Checking leo-ast v1.0.8 (/opt/rustwide/workdir)
[INFO] [stdout] error: couldn't read benches/leo_ast.rs: No such file or directory (os error 2)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `leo-ast`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "a8e50f70e35fcdb2138e2d494faed7c03c6433d3dab827c0ec18da35d4e39655", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a8e50f70e35fcdb2138e2d494faed7c03c6433d3dab827c0ec18da35d4e39655", kill_on_drop: false }`
[INFO] [stdout] a8e50f70e35fcdb2138e2d494faed7c03c6433d3dab827c0ec18da35d4e39655