[INFO] fetching crate alt_serde_json 1.0.44...
[INFO] checking alt_serde_json-1.0.44 against try#894d32a5432c6a6461bb2aac7c3d5f2e87dce83f for pr-77015
[INFO] extracting crate alt_serde_json 1.0.44 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate alt_serde_json 1.0.44 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 alt_serde_json 1.0.44
[INFO] finished tweaking crates.io crate alt_serde_json 1.0.44
[INFO] tweaked toml for crates.io crate alt_serde_json 1.0.44 written to /workspace/builds/worker-8/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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+894d32a5432c6a6461bb2aac7c3d5f2e87dce83f" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded psm v0.1.11
[INFO] [stderr]   Downloaded serde_stacker v0.1.4
[INFO] [stderr]   Downloaded dissimilar v1.0.2
[INFO] [stderr]   Downloaded trybuild v1.0.35
[INFO] [stderr]   Downloaded automod v0.1.2
[INFO] [stderr]   Downloaded stacker v0.1.12
[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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+894d32a5432c6a6461bb2aac7c3d5f2e87dce83f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c72faf12499c48c4594a1050b4901087ef6c3138b7d5fe74c6201e676492c5bf
[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" "c72faf12499c48c4594a1050b4901087ef6c3138b7d5fe74c6201e676492c5bf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c72faf12499c48c4594a1050b4901087ef6c3138b7d5fe74c6201e676492c5bf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c72faf12499c48c4594a1050b4901087ef6c3138b7d5fe74c6201e676492c5bf", kill_on_drop: false }`
[INFO] [stdout] c72faf12499c48c4594a1050b4901087ef6c3138b7d5fe74c6201e676492c5bf
[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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+894d32a5432c6a6461bb2aac7c3d5f2e87dce83f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1eca9a8d7a5dfbb6a707a320ad5fa5b56309f4bbd50aba7d52ec4304a82e9495
[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" "1eca9a8d7a5dfbb6a707a320ad5fa5b56309f4bbd50aba7d52ec4304a82e9495", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[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 cc v1.0.60
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling libc v0.2.78
[INFO] [stderr]    Compiling alt_serde v1.0.104
[INFO] [stderr]    Compiling serde_json v1.0.58
[INFO] [stderr]     Checking itoa v0.4.6
[INFO] [stderr]    Compiling trybuild v1.0.35
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling rustversion v1.0.3
[INFO] [stderr]     Checking termcolor v1.1.0
[INFO] [stderr]     Checking glob v0.3.0
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking dissimilar v1.0.2
[INFO] [stderr]    Compiling psm v0.1.11
[INFO] [stderr]    Compiling stacker v0.1.12
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]     Checking alt_serde_json v1.0.44 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling automod v0.1.2
[INFO] [stderr]     Checking toml v0.5.6
[INFO] [stderr]     Checking serde_stacker v0.1.4
[INFO] [stderr]     Checking serde_bytes v0.11.5
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 53.08s
[INFO] running `Command { std: "docker" "inspect" "1eca9a8d7a5dfbb6a707a320ad5fa5b56309f4bbd50aba7d52ec4304a82e9495", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1eca9a8d7a5dfbb6a707a320ad5fa5b56309f4bbd50aba7d52ec4304a82e9495", kill_on_drop: false }`
[INFO] [stdout] 1eca9a8d7a5dfbb6a707a320ad5fa5b56309f4bbd50aba7d52ec4304a82e9495