[INFO] fetching crate schemars 0.8.0-alpha-4...
[INFO] checking schemars-0.8.0-alpha-4 against try#b1cc2963e8346ba1f5afb1edb86dbcf3f9ef0c5f for pr-76104
[INFO] extracting crate schemars 0.8.0-alpha-4 into /workspace/builds/worker-9/source
[INFO] validating manifest of crates.io crate schemars 0.8.0-alpha-4 on toolchain b1cc2963e8346ba1f5afb1edb86dbcf3f9ef0c5f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b1cc2963e8346ba1f5afb1edb86dbcf3f9ef0c5f" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate schemars 0.8.0-alpha-4
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate schemars 0.8.0-alpha-4
[INFO] tweaked toml for crates.io crate schemars 0.8.0-alpha-4 written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate crates.io crate schemars 0.8.0-alpha-4 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b1cc2963e8346ba1f5afb1edb86dbcf3f9ef0c5f" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded schemars_derive v0.8.0-alpha-4
[INFO] [stderr]   Downloaded uuid v0.8.1
[INFO] [stderr]   Downloaded dyn-clone v1.0.1
[INFO] [stderr]   Downloaded indexmap v1.4.0
[INFO] [stderr]   Downloaded ctor v0.1.9
[INFO] [stderr]   Downloaded syn v1.0.31
[INFO] [stderr]   Downloaded libc v0.2.62
[INFO] [stderr]   Downloaded trybuild v1.0.29
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "+b1cc2963e8346ba1f5afb1edb86dbcf3f9ef0c5f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 49501e59f35d1c317b6cec01c8cda1c378d94214547dd0a5eddc5c421aa6d0d4
[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" "49501e59f35d1c317b6cec01c8cda1c378d94214547dd0a5eddc5c421aa6d0d4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "49501e59f35d1c317b6cec01c8cda1c378d94214547dd0a5eddc5c421aa6d0d4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "49501e59f35d1c317b6cec01c8cda1c378d94214547dd0a5eddc5c421aa6d0d4", kill_on_drop: false }`
[INFO] [stdout] 49501e59f35d1c317b6cec01c8cda1c378d94214547dd0a5eddc5c421aa6d0d4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "+b1cc2963e8346ba1f5afb1edb86dbcf3f9ef0c5f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3a1d0eb2469b543ade6893df78621e97ffee5fc113b301f13905ac57e7e60197
[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" "3a1d0eb2469b543ade6893df78621e97ffee5fc113b301f13905ac57e7e60197", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.31
[INFO] [stderr]    Compiling schemars v0.8.0-alpha-4 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking termcolor v1.1.0
[INFO] [stderr]     Checking dyn-clone v1.0.1
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking difference v2.0.0
[INFO] [stderr]     Checking glob v0.3.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.18
[INFO] [stderr]     Checking pretty_assertions v0.6.1
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]    Compiling serde_derive_internals v0.25.0
[INFO] [stderr]    Compiling serde_derive v1.0.111
[INFO] [stderr]    Compiling schemars_derive v0.8.0-alpha-4
[INFO] [stderr]     Checking serde v1.0.111
[INFO] [stderr]     Checking serde_json v1.0.41
[INFO] [stderr]     Checking toml v0.5.6
[INFO] [stderr]     Checking trybuild v1.0.29
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 43.20s
[INFO] running `Command { std: "docker" "inspect" "3a1d0eb2469b543ade6893df78621e97ffee5fc113b301f13905ac57e7e60197", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3a1d0eb2469b543ade6893df78621e97ffee5fc113b301f13905ac57e7e60197", kill_on_drop: false }`
[INFO] [stdout] 3a1d0eb2469b543ade6893df78621e97ffee5fc113b301f13905ac57e7e60197