[INFO] fetching crate twiggy-ir 0.6.0...
[INFO] checking twiggy-ir-0.6.0 against master#7f5a42b073dc2bee2aa625052eb066ee07072048 for pr-78991
[INFO] extracting crate twiggy-ir 0.6.0 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate twiggy-ir 0.6.0 on toolchain 7f5a42b073dc2bee2aa625052eb066ee07072048
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7f5a42b073dc2bee2aa625052eb066ee07072048" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate twiggy-ir 0.6.0
[INFO] finished tweaking crates.io crate twiggy-ir 0.6.0
[INFO] tweaked toml for crates.io crate twiggy-ir 0.6.0 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7f5a42b073dc2bee2aa625052eb066ee07072048" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7f5a42b073dc2bee2aa625052eb066ee07072048" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+7f5a42b073dc2bee2aa625052eb066ee07072048" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a30b12822a1795e099dee58a843b227b61b504286f315a620864d49e5cd2b54b
[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" "a30b12822a1795e099dee58a843b227b61b504286f315a620864d49e5cd2b54b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a30b12822a1795e099dee58a843b227b61b504286f315a620864d49e5cd2b54b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a30b12822a1795e099dee58a843b227b61b504286f315a620864d49e5cd2b54b", kill_on_drop: false }`
[INFO] [stdout] a30b12822a1795e099dee58a843b227b61b504286f315a620864d49e5cd2b54b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+7f5a42b073dc2bee2aa625052eb066ee07072048" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bd41eb797de99429fcb31a03c1ed3d031eaf82455fdfa88bc8d7f0a6b2af1d7d
[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" "bd41eb797de99429fcb31a03c1ed3d031eaf82455fdfa88bc8d7f0a6b2af1d7d", kill_on_drop: false }`
[INFO] [stderr]    Compiling glob v0.3.0
[INFO] [stderr]     Checking frozen v1.0.0
[INFO] [stderr]    Compiling syn v1.0.48
[INFO] [stderr]    Compiling cpp_demangle v0.2.16
[INFO] [stderr]    Compiling serde_derive v1.0.117
[INFO] [stderr]     Checking twiggy-ir v0.6.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 27.48s
[INFO] running `Command { std: "docker" "inspect" "bd41eb797de99429fcb31a03c1ed3d031eaf82455fdfa88bc8d7f0a6b2af1d7d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bd41eb797de99429fcb31a03c1ed3d031eaf82455fdfa88bc8d7f0a6b2af1d7d", kill_on_drop: false }`
[INFO] [stdout] bd41eb797de99429fcb31a03c1ed3d031eaf82455fdfa88bc8d7f0a6b2af1d7d