[INFO] fetching crate serde-detach 0.0.1...
[INFO] checking serde-detach-0.0.1 against master#b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18 for pr-79470
[INFO] extracting crate serde-detach 0.0.1 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate serde-detach 0.0.1 on toolchain b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate serde-detach 0.0.1
[INFO] finished tweaking crates.io crate serde-detach 0.0.1
[INFO] tweaked toml for crates.io crate serde-detach 0.0.1 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f70b2f8842c231bb32780bda72875d397ce39f2944d9fb5a31db30840b7e8bc5
[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" "f70b2f8842c231bb32780bda72875d397ce39f2944d9fb5a31db30840b7e8bc5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f70b2f8842c231bb32780bda72875d397ce39f2944d9fb5a31db30840b7e8bc5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f70b2f8842c231bb32780bda72875d397ce39f2944d9fb5a31db30840b7e8bc5", kill_on_drop: false }`
[INFO] [stdout] f70b2f8842c231bb32780bda72875d397ce39f2944d9fb5a31db30840b7e8bc5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7637496e5553436cd215848603ed217325d0f239bb5d0fc8fbeef60101e36c7f
[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" "7637496e5553436cd215848603ed217325d0f239bb5d0fc8fbeef60101e36c7f", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling version_check v0.9.2
[INFO] [stderr]    Compiling proc-macro-hack v0.5.19
[INFO] [stderr]    Compiling serde_derive v1.0.118
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling serde v1.0.118
[INFO] [stderr]    Compiling utf8-ranges v1.0.4
[INFO] [stderr]    Compiling fnv v1.0.7
[INFO] [stderr]    Compiling beef v0.4.4
[INFO] [stderr]    Compiling regex-syntax v0.6.21
[INFO] [stderr]     Checking cervine v0.0.2
[INFO] [stderr]     Checking gnaw v0.0.1
[INFO] [stderr]     Checking wyz v0.2.0
[INFO] [stderr]     Checking hashbrown v0.9.1
[INFO] [stderr]     Checking debugless-unwrap v0.0.1
[INFO] [stderr]     Checking enum_properties v0.2.1
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking smartstring v0.2.5
[INFO] [stderr]     Checking lazy-transform-str v0.0.1
[INFO] [stderr]    Compiling indexmap v1.6.0
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]    Compiling syn v1.0.54
[INFO] [stderr]    Compiling try_match_inner v0.2.0
[INFO] [stderr]    Compiling logos-derive v0.11.5
[INFO] [stderr]     Checking try_match v0.2.2
[INFO] [stderr]     Checking logos v0.11.4
[INFO] [stderr]     Checking taml v0.0.1
[INFO] [stderr]     Checking serde_taml v0.0.1
[INFO] [stderr]     Checking serde-object v0.0.0-alpha.0
[INFO] [stderr]     Checking serde-detach v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 51.19s
[INFO] running `Command { std: "docker" "inspect" "7637496e5553436cd215848603ed217325d0f239bb5d0fc8fbeef60101e36c7f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7637496e5553436cd215848603ed217325d0f239bb5d0fc8fbeef60101e36c7f", kill_on_drop: false }`
[INFO] [stdout] 7637496e5553436cd215848603ed217325d0f239bb5d0fc8fbeef60101e36c7f