[INFO] fetching crate zser 0.0.1...
[INFO] checking zser-0.0.1 against try#894d32a5432c6a6461bb2aac7c3d5f2e87dce83f for pr-77015
[INFO] extracting crate zser 0.0.1 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate zser 0.0.1 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 zser 0.0.1
[INFO] finished tweaking crates.io crate zser 0.0.1
[INFO] tweaked toml for crates.io crate zser 0.0.1 written to /workspace/builds/worker-2/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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] 377f4e6b74809f5bcf735a98212b24dcc0035ef6ae28f8d0ac33bd5f7559ac29
[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" "377f4e6b74809f5bcf735a98212b24dcc0035ef6ae28f8d0ac33bd5f7559ac29", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "377f4e6b74809f5bcf735a98212b24dcc0035ef6ae28f8d0ac33bd5f7559ac29", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "377f4e6b74809f5bcf735a98212b24dcc0035ef6ae28f8d0ac33bd5f7559ac29", kill_on_drop: false }`
[INFO] [stdout] 377f4e6b74809f5bcf735a98212b24dcc0035ef6ae28f8d0ac33bd5f7559ac29
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] 8fb7528ad45c5eb542f7b83e0615b240b7d2cfc0f98031b3560a9a40a9089c43
[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" "8fb7528ad45c5eb542f7b83e0615b240b7d2cfc0f98031b3560a9a40a9089c43", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.78
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling serde v1.0.116
[INFO] [stderr]    Compiling serde_json v1.0.58
[INFO] [stderr]     Checking itoa v0.4.6
[INFO] [stderr]     Checking byteorder v0.5.3
[INFO] [stderr]     Checking leb128 v0.2.4
[INFO] [stderr]    Compiling miniz_oxide v0.4.2
[INFO] [stderr]     Checking backtrace v0.3.51
[INFO] [stderr]     Checking error-chain v0.10.0
[INFO] [stderr]     Checking zser v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 16.06s
[INFO] running `Command { std: "docker" "inspect" "8fb7528ad45c5eb542f7b83e0615b240b7d2cfc0f98031b3560a9a40a9089c43", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8fb7528ad45c5eb542f7b83e0615b240b7d2cfc0f98031b3560a9a40a9089c43", kill_on_drop: false }`
[INFO] [stdout] 8fb7528ad45c5eb542f7b83e0615b240b7d2cfc0f98031b3560a9a40a9089c43