[INFO] fetching crate overflow 0.1.0...
[INFO] checking overflow-0.1.0 against try#b2f80f6008cdafc35b4472bd46afa16cc6b0cd63 for pr-79470
[INFO] extracting crate overflow 0.1.0 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate overflow 0.1.0 on toolchain b2f80f6008cdafc35b4472bd46afa16cc6b0cd63
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b2f80f6008cdafc35b4472bd46afa16cc6b0cd63" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate overflow 0.1.0
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate overflow 0.1.0
[INFO] tweaked toml for crates.io crate overflow 0.1.0 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b2f80f6008cdafc35b4472bd46afa16cc6b0cd63" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b2f80f6008cdafc35b4472bd46afa16cc6b0cd63" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded trybuild v1.0.35
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+b2f80f6008cdafc35b4472bd46afa16cc6b0cd63" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ca4a76e30e0c52476ce2429fde253c24014c0bf268235dc7cd785d174b3821e4
[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" "ca4a76e30e0c52476ce2429fde253c24014c0bf268235dc7cd785d174b3821e4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ca4a76e30e0c52476ce2429fde253c24014c0bf268235dc7cd785d174b3821e4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ca4a76e30e0c52476ce2429fde253c24014c0bf268235dc7cd785d174b3821e4", kill_on_drop: false }`
[INFO] [stdout] ca4a76e30e0c52476ce2429fde253c24014c0bf268235dc7cd785d174b3821e4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+b2f80f6008cdafc35b4472bd46afa16cc6b0cd63" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 95e5664fed74d1ee19e8492f74c6600bfd61ca8cbe2c6c38b629365b3be912c3
[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" "95e5664fed74d1ee19e8492f74c6600bfd61ca8cbe2c6c38b629365b3be912c3", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling serde v1.0.118
[INFO] [stderr]     Checking unicode-xid v0.1.0
[INFO] [stderr]    Compiling trybuild v1.0.35
[INFO] [stderr]     Checking glob v0.3.0
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking termcolor v1.1.2
[INFO] [stderr]     Checking proc-macro2 v0.4.30
[INFO] [stderr]     Checking quote v0.6.13
[INFO] [stderr]     Checking syn v0.15.44
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]    Compiling syn v1.0.54
[INFO] [stderr]    Compiling serde_derive v1.0.118
[INFO] [stderr]     Checking overflow v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking toml v0.5.7
[INFO] [stderr]     Checking serde_json v1.0.60
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 39.92s
[INFO] running `Command { std: "docker" "inspect" "95e5664fed74d1ee19e8492f74c6600bfd61ca8cbe2c6c38b629365b3be912c3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "95e5664fed74d1ee19e8492f74c6600bfd61ca8cbe2c6c38b629365b3be912c3", kill_on_drop: false }`
[INFO] [stdout] 95e5664fed74d1ee19e8492f74c6600bfd61ca8cbe2c6c38b629365b3be912c3