[INFO] fetching crate bc 0.1.10...
[INFO] checking bc-0.1.10 against master#893fadd11a52aa26fc19c67ee1b79f03d6a1bed3 for pr-77153
[INFO] extracting crate bc 0.1.10 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate bc 0.1.10 on toolchain 893fadd11a52aa26fc19c67ee1b79f03d6a1bed3
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+893fadd11a52aa26fc19c67ee1b79f03d6a1bed3" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate bc 0.1.10
[INFO] finished tweaking crates.io crate bc 0.1.10
[INFO] tweaked toml for crates.io crate bc 0.1.10 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+893fadd11a52aa26fc19c67ee1b79f03d6a1bed3" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+893fadd11a52aa26fc19c67ee1b79f03d6a1bed3" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+893fadd11a52aa26fc19c67ee1b79f03d6a1bed3" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 8b72ddc7bae1e82caeff17b1f605a977f32ce560f328e690096018a269e66f45
[INFO] running `Command { std: "docker" "start" "-a" "8b72ddc7bae1e82caeff17b1f605a977f32ce560f328e690096018a269e66f45", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8b72ddc7bae1e82caeff17b1f605a977f32ce560f328e690096018a269e66f45", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8b72ddc7bae1e82caeff17b1f605a977f32ce560f328e690096018a269e66f45", kill_on_drop: false }`
[INFO] [stdout] 8b72ddc7bae1e82caeff17b1f605a977f32ce560f328e690096018a269e66f45
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+893fadd11a52aa26fc19c67ee1b79f03d6a1bed3" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4e9161d9ccad774c2f0063f14b7484a774ca8ac3fd69908fb4233efcf90ffedf
[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" "4e9161d9ccad774c2f0063f14b7484a774ca8ac3fd69908fb4233efcf90ffedf", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.41
[INFO] [stderr]    Compiling typenum v1.12.0
[INFO] [stderr]    Compiling execute-command-tokens v0.1.3
[INFO] [stderr]     Checking assert_approx_eq v1.1.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.21
[INFO] [stderr]    Compiling generic-array v0.14.4
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]    Compiling execute-command-macro-impl v0.1.5
[INFO] [stderr]     Checking execute-command-macro v0.1.5
[INFO] [stderr]     Checking execute v0.2.8
[INFO] [stderr]     Checking bc v0.1.10 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 16.79s
[INFO] running `Command { std: "docker" "inspect" "4e9161d9ccad774c2f0063f14b7484a774ca8ac3fd69908fb4233efcf90ffedf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4e9161d9ccad774c2f0063f14b7484a774ca8ac3fd69908fb4233efcf90ffedf", kill_on_drop: false }`
[INFO] [stdout] 4e9161d9ccad774c2f0063f14b7484a774ca8ac3fd69908fb4233efcf90ffedf