[INFO] fetching crate buffett-interface 0.1.0...
[INFO] checking buffett-interface-0.1.0 against master#6526e5c772f2da07db745c94ca6bb0a591a39ba4 for pr-80920
[INFO] extracting crate buffett-interface 0.1.0 into /workspace/builds/worker-14/source
[INFO] validating manifest of crates.io crate buffett-interface 0.1.0 on toolchain 6526e5c772f2da07db745c94ca6bb0a591a39ba4
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6526e5c772f2da07db745c94ca6bb0a591a39ba4" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate buffett-interface 0.1.0
[INFO] finished tweaking crates.io crate buffett-interface 0.1.0
[INFO] tweaked toml for crates.io crate buffett-interface 0.1.0 written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6526e5c772f2da07db745c94ca6bb0a591a39ba4" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6526e5c772f2da07db745c94ca6bb0a591a39ba4" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+6526e5c772f2da07db745c94ca6bb0a591a39ba4" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5b2601ad9c987c538c41e1826c35c4519e0261c71fc2d9b6ebef96a20ea575bc
[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" "5b2601ad9c987c538c41e1826c35c4519e0261c71fc2d9b6ebef96a20ea575bc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5b2601ad9c987c538c41e1826c35c4519e0261c71fc2d9b6ebef96a20ea575bc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5b2601ad9c987c538c41e1826c35c4519e0261c71fc2d9b6ebef96a20ea575bc", kill_on_drop: false }`
[INFO] [stdout] 5b2601ad9c987c538c41e1826c35c4519e0261c71fc2d9b6ebef96a20ea575bc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+6526e5c772f2da07db745c94ca6bb0a591a39ba4" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 32e87b903849ec868a8516d55671fe96fa9ef8f04dee4381afa16fe72ee46ccb
[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" "32e87b903849ec868a8516d55671fe96fa9ef8f04dee4381afa16fe72ee46ccb", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling serde v1.0.119
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.58
[INFO] [stderr]    Compiling typenum v1.12.0
[INFO] [stderr]    Compiling serde_derive v1.0.119
[INFO] [stderr]     Checking byteorder v1.4.2
[INFO] [stderr]     Checking bs58 v0.2.5
[INFO] [stderr]    Compiling quote v1.0.8
[INFO] [stderr]     Checking generic-array v0.12.3
[INFO] [stderr]     Checking bincode v1.3.1
[INFO] [stderr]     Checking buffett-interface v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 26.26s
[INFO] running `Command { std: "docker" "inspect" "32e87b903849ec868a8516d55671fe96fa9ef8f04dee4381afa16fe72ee46ccb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "32e87b903849ec868a8516d55671fe96fa9ef8f04dee4381afa16fe72ee46ccb", kill_on_drop: false }`
[INFO] [stdout] 32e87b903849ec868a8516d55671fe96fa9ef8f04dee4381afa16fe72ee46ccb