[INFO] fetching crate buffett_program_interface 0.1.0...
[INFO] checking buffett_program_interface-0.1.0 against try#05c8870159e4f328578a970e125aa76d24f03b56 for pr-76219
[INFO] extracting crate buffett_program_interface 0.1.0 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate buffett_program_interface 0.1.0 on toolchain 05c8870159e4f328578a970e125aa76d24f03b56
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+05c8870159e4f328578a970e125aa76d24f03b56" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate buffett_program_interface 0.1.0
[INFO] finished tweaking crates.io crate buffett_program_interface 0.1.0
[INFO] tweaked toml for crates.io crate buffett_program_interface 0.1.0 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+05c8870159e4f328578a970e125aa76d24f03b56" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+05c8870159e4f328578a970e125aa76d24f03b56" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded bs58 v0.2.5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "+05c8870159e4f328578a970e125aa76d24f03b56" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 668963fb16b7bbb96735be0816b1f75b42ccaaba25dc5c2ae430dae41d66f833
[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" "668963fb16b7bbb96735be0816b1f75b42ccaaba25dc5c2ae430dae41d66f833", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "668963fb16b7bbb96735be0816b1f75b42ccaaba25dc5c2ae430dae41d66f833", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "668963fb16b7bbb96735be0816b1f75b42ccaaba25dc5c2ae430dae41d66f833", kill_on_drop: false }`
[INFO] [stdout] 668963fb16b7bbb96735be0816b1f75b42ccaaba25dc5c2ae430dae41d66f833
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "+05c8870159e4f328578a970e125aa76d24f03b56" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5acbab343cadd9c8de2950f30a51e720cdd36c1e6a690cf7ad56707bfbdb215a
[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" "5acbab343cadd9c8de2950f30a51e720cdd36c1e6a690cf7ad56707bfbdb215a", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.20
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling serde v1.0.115
[INFO] [stderr]    Compiling syn v1.0.40
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling typenum v1.12.0
[INFO] [stderr]    Compiling serde_derive v1.0.115
[INFO] [stderr]     Checking bs58 v0.2.5
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]     Checking bincode v1.3.1
[INFO] [stderr]     Checking generic-array v0.12.3
[INFO] [stderr]     Checking buffett_program_interface v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 26.90s
[INFO] running `Command { std: "docker" "inspect" "5acbab343cadd9c8de2950f30a51e720cdd36c1e6a690cf7ad56707bfbdb215a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5acbab343cadd9c8de2950f30a51e720cdd36c1e6a690cf7ad56707bfbdb215a", kill_on_drop: false }`
[INFO] [stdout] 5acbab343cadd9c8de2950f30a51e720cdd36c1e6a690cf7ad56707bfbdb215a