[INFO] fetching crate serde_traitobject 0.2.7...
[INFO] checking serde_traitobject-0.2.7 against master#5e3f1b148db5bfa27fee52464ae1f5d34c49d77b for pr-75502
[INFO] extracting crate serde_traitobject 0.2.7 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate serde_traitobject 0.2.7 on toolchain 5e3f1b148db5bfa27fee52464ae1f5d34c49d77b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5e3f1b148db5bfa27fee52464ae1f5d34c49d77b" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate serde_traitobject 0.2.7
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate serde_traitobject 0.2.7
[INFO] tweaked toml for crates.io crate serde_traitobject 0.2.7 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5e3f1b148db5bfa27fee52464ae1f5d34c49d77b" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5e3f1b148db5bfa27fee52464ae1f5d34c49d77b" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:e18d859f9e32a1da89bc7b2d7d51e13b57342044d1295d9fc0dd0068c58eb3d1" "/opt/rustwide/cargo-home/bin/cargo" "+5e3f1b148db5bfa27fee52464ae1f5d34c49d77b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 553da0a30c5401739f28c7c002a2f4e624229b91fe9e063d38e0617fff26b287
[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" "553da0a30c5401739f28c7c002a2f4e624229b91fe9e063d38e0617fff26b287", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "553da0a30c5401739f28c7c002a2f4e624229b91fe9e063d38e0617fff26b287", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "553da0a30c5401739f28c7c002a2f4e624229b91fe9e063d38e0617fff26b287", kill_on_drop: false }`
[INFO] [stdout] 553da0a30c5401739f28c7c002a2f4e624229b91fe9e063d38e0617fff26b287
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:e18d859f9e32a1da89bc7b2d7d51e13b57342044d1295d9fc0dd0068c58eb3d1" "/opt/rustwide/cargo-home/bin/cargo" "+5e3f1b148db5bfa27fee52464ae1f5d34c49d77b" "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] 3f1d92682af0fe19873c9fd802180f10923c041e322846df8543ec5d5d465293
[INFO] running `Command { std: "docker" "start" "-a" "3f1d92682af0fe19873c9fd802180f10923c041e322846df8543ec5d5d465293", kill_on_drop: false }`
[INFO] [stderr]    Compiling typenum v1.12.0
[INFO] [stderr]    Compiling serde v1.0.115
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling nix v0.15.0
[INFO] [stderr]    Compiling heapless v0.5.5
[INFO] [stderr]    Compiling build_id v0.2.1
[INFO] [stderr]     Checking nom v2.2.1
[INFO] [stderr]    Compiling rustversion v1.0.3
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling relative v0.2.2
[INFO] [stderr]     Checking twox-hash v1.5.0
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]     Checking once_cell v1.4.1
[INFO] [stderr]    Compiling serde_json v1.0.57
[INFO] [stderr]     Checking metatype v0.2.0
[INFO] [stderr]     Checking itoa v0.4.6
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]     Checking hash32 v0.1.1
[INFO] [stderr]    Compiling syn v1.0.39
[INFO] [stderr]    Compiling wasm-bindgen-test-macro v0.3.17
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]    Compiling procinfo v0.4.2
[INFO] [stderr]     Checking generic-array v0.12.3
[INFO] [stderr]     Checking generic-array v0.13.2
[INFO] [stderr]     Checking as-slice v0.1.3
[INFO] [stderr]    Compiling wasm-bindgen-backend v0.2.67
[INFO] [stderr]     Checking palaver v0.2.8
[INFO] [stderr]    Compiling wasm-bindgen-macro-support v0.2.67
[INFO] [stderr]    Compiling serde_derive v1.0.115
[INFO] [stderr]    Compiling serde_closure_derive v0.3.2
[INFO] [stderr]    Compiling wasm-bindgen-macro v0.2.67
[INFO] [stderr]    Compiling serde_closure v0.3.2
[INFO] [stderr]     Checking wasm-bindgen v0.2.67
[INFO] [stderr]     Checking js-sys v0.3.44
[INFO] [stderr]     Checking console_error_panic_hook v0.1.6
[INFO] [stderr]     Checking wasm-bindgen-futures v0.4.17
[INFO] [stderr]     Checking wasm-bindgen-test v0.3.17
[INFO] [stderr]     Checking uuid v0.8.1
[INFO] [stderr]     Checking erased-serde v0.3.12
[INFO] [stderr]     Checking bincode v1.3.1
[INFO] [stderr]     Checking serde_traitobject v0.2.7 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 07s
[INFO] running `Command { std: "docker" "inspect" "3f1d92682af0fe19873c9fd802180f10923c041e322846df8543ec5d5d465293", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3f1d92682af0fe19873c9fd802180f10923c041e322846df8543ec5d5d465293", kill_on_drop: false }`
[INFO] [stdout] 3f1d92682af0fe19873c9fd802180f10923c041e322846df8543ec5d5d465293