[INFO] fetching crate graviton_frontend 0.6.0...
[INFO] checking graviton_frontend-0.6.0 against try#894d32a5432c6a6461bb2aac7c3d5f2e87dce83f for pr-77015
[INFO] extracting crate graviton_frontend 0.6.0 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate graviton_frontend 0.6.0 on toolchain 894d32a5432c6a6461bb2aac7c3d5f2e87dce83f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+894d32a5432c6a6461bb2aac7c3d5f2e87dce83f" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate graviton_frontend 0.6.0
[INFO] finished tweaking crates.io crate graviton_frontend 0.6.0
[INFO] tweaked toml for crates.io crate graviton_frontend 0.6.0 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+894d32a5432c6a6461bb2aac7c3d5f2e87dce83f" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+894d32a5432c6a6461bb2aac7c3d5f2e87dce83f" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded graviton_core v0.6.0
[INFO] [stderr]   Downloaded graviton_ast v0.6.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+894d32a5432c6a6461bb2aac7c3d5f2e87dce83f" "metadata" "--no-deps" "--format-version=1", 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] 8d86f9ea81965d877d278f8987a5a1af960c7acc436b18d13a8a8a607c3b729d
[INFO] running `Command { std: "docker" "start" "-a" "8d86f9ea81965d877d278f8987a5a1af960c7acc436b18d13a8a8a607c3b729d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8d86f9ea81965d877d278f8987a5a1af960c7acc436b18d13a8a8a607c3b729d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8d86f9ea81965d877d278f8987a5a1af960c7acc436b18d13a8a8a607c3b729d", kill_on_drop: false }`
[INFO] [stdout] 8d86f9ea81965d877d278f8987a5a1af960c7acc436b18d13a8a8a607c3b729d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+894d32a5432c6a6461bb2aac7c3d5f2e87dce83f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 093c4ee93e36ae9fc789af6c7e0cecc970dff5f2d9a3ceee9de057b832de2cde
[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" "093c4ee93e36ae9fc789af6c7e0cecc970dff5f2d9a3ceee9de057b832de2cde", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling libc v0.2.78
[INFO] [stderr]    Compiling syn v1.0.42
[INFO] [stderr]    Compiling serde_derive v1.0.116
[INFO] [stderr]    Compiling serde v1.0.116
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking memmap v0.7.0
[INFO] [stderr]     Checking colored v1.9.3
[INFO] [stderr]     Checking graviton_core v0.6.0
[INFO] [stderr]     Checking graviton_ast v0.6.0
[INFO] [stderr]     Checking graviton_frontend v0.6.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 34.25s
[INFO] running `Command { std: "docker" "inspect" "093c4ee93e36ae9fc789af6c7e0cecc970dff5f2d9a3ceee9de057b832de2cde", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "093c4ee93e36ae9fc789af6c7e0cecc970dff5f2d9a3ceee9de057b832de2cde", kill_on_drop: false }`
[INFO] [stdout] 093c4ee93e36ae9fc789af6c7e0cecc970dff5f2d9a3ceee9de057b832de2cde