[INFO] cloning repository https://github.com/dnagir/rust-api-validation-playground
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/dnagir/rust-api-validation-playground" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdnagir%2Frust-api-validation-playground", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdnagir%2Frust-api-validation-playground'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 160831fa28185da68e1e1b7ee9c4425ce992ad90
[INFO] checking dnagir/rust-api-validation-playground against try#f47dd4da3ae8c32c9e65d307bfe640b143e674df for pr-77526
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdnagir%2Frust-api-validation-playground" "/workspace/builds/worker-8/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/dnagir/rust-api-validation-playground on toolchain f47dd4da3ae8c32c9e65d307bfe640b143e674df
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/dnagir/rust-api-validation-playground
[INFO] finished tweaking git repo https://github.com/dnagir/rust-api-validation-playground
[INFO] tweaked toml for git repo https://github.com/dnagir/rust-api-validation-playground written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/dnagir/rust-api-validation-playground already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded validator v0.8.0
[INFO] [stderr]   Downloaded serde_json v1.0.39
[INFO] [stderr]   Downloaded ryu v0.2.8
[INFO] [stderr]   Downloaded itertools v0.8.0
[INFO] [stderr]   Downloaded if_chain v0.1.3
[INFO] [stderr]   Downloaded validator_derive v0.8.0
[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" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f7ee2437acbe385519ac8efc5c5cf5ac469b72e16e06aef42342a2629a7f2de0
[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" "f7ee2437acbe385519ac8efc5c5cf5ac469b72e16e06aef42342a2629a7f2de0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f7ee2437acbe385519ac8efc5c5cf5ac469b72e16e06aef42342a2629a7f2de0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f7ee2437acbe385519ac8efc5c5cf5ac469b72e16e06aef42342a2629a7f2de0", kill_on_drop: false }`
[INFO] [stdout] f7ee2437acbe385519ac8efc5c5cf5ac469b72e16e06aef42342a2629a7f2de0
[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" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a32a99095a60d5ec1e86eb2c4d9bcc61070d19e873aad9ca7f75a38ff8ccd728
[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" "a32a99095a60d5ec1e86eb2c4d9bcc61070d19e873aad9ca7f75a38ff8ccd728", kill_on_drop: false }`
[INFO] [stderr]    Compiling ryu v0.2.8
[INFO] [stderr]    Compiling smallvec v0.6.9
[INFO] [stderr]    Compiling lazy_static v1.3.0
[INFO] [stderr]    Compiling if_chain v0.1.3
[INFO] [stderr]     Checking unicode-bidi v0.3.4
[INFO] [stderr]     Checking thread_local v0.3.6
[INFO] [stderr]     Checking itertools v0.8.0
[INFO] [stderr]    Compiling proc-macro2 v0.4.29
[INFO] [stderr]     Checking regex v1.1.6
[INFO] [stderr]     Checking idna v0.1.5
[INFO] [stderr]    Compiling unicode-normalization v0.1.8
[INFO] [stderr]    Compiling quote v0.6.12
[INFO] [stderr]    Compiling syn v0.15.33
[INFO] [stderr]     Checking url v1.7.2
[INFO] [stderr]    Compiling serde_derive v1.0.90
[INFO] [stderr]    Compiling serde v1.0.90
[INFO] [stderr]     Checking serde_json v1.0.39
[INFO] [stderr]     Checking validator v0.8.0
[INFO] [stderr]    Compiling validator_derive v0.8.0
[INFO] [stderr]     Checking rust-api-validation-playground v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 22s
[INFO] running `Command { std: "docker" "inspect" "a32a99095a60d5ec1e86eb2c4d9bcc61070d19e873aad9ca7f75a38ff8ccd728", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a32a99095a60d5ec1e86eb2c4d9bcc61070d19e873aad9ca7f75a38ff8ccd728", kill_on_drop: false }`
[INFO] [stdout] a32a99095a60d5ec1e86eb2c4d9bcc61070d19e873aad9ca7f75a38ff8ccd728