[INFO] fetching crate doublecount 0.8.2...
[INFO] checking doublecount-0.8.2 against try#05c8870159e4f328578a970e125aa76d24f03b56 for pr-76219
[INFO] extracting crate doublecount 0.8.2 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate doublecount 0.8.2 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 doublecount 0.8.2
[INFO] finished tweaking crates.io crate doublecount 0.8.2
[INFO] tweaked toml for crates.io crate doublecount 0.8.2 written to /workspace/builds/worker-7/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 insta v0.16.1
[INFO] [stderr]   Downloaded rust_decimal v1.7.0
[INFO] [stderr]   Downloaded nanoid v0.3.0
[INFO] [stderr]   Downloaded commodity v0.4.0
[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" "+05c8870159e4f328578a970e125aa76d24f03b56" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 32a9dfd17b4c65808eaa508750e8f6f80e98b8c6ac55a552c022c32e404f8cb9
[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" "32a9dfd17b4c65808eaa508750e8f6f80e98b8c6ac55a552c022c32e404f8cb9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "32a9dfd17b4c65808eaa508750e8f6f80e98b8c6ac55a552c022c32e404f8cb9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "32a9dfd17b4c65808eaa508750e8f6f80e98b8c6ac55a552c022c32e404f8cb9", kill_on_drop: false }`
[INFO] [stdout] 32a9dfd17b4c65808eaa508750e8f6f80e98b8c6ac55a552c022c32e404f8cb9
[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" "+05c8870159e4f328578a970e125aa76d24f03b56" "check" "--frozen" "--all" "--all-targets" "--message-format=json", 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] 2ec7fdf5af3033fb21e626b27b3ff1328611fc37135c1f8fce3c3ed840d2a5d5
[INFO] running `Command { std: "docker" "start" "-a" "2ec7fdf5af3033fb21e626b27b3ff1328611fc37135c1f8fce3c3ed840d2a5d5", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.76
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling serde_json v1.0.57
[INFO] [stderr]     Checking linked-hash-map v0.5.3
[INFO] [stderr]     Checking dtoa v0.4.6
[INFO] [stderr]     Checking itoa v0.4.6
[INFO] [stderr]    Compiling doc-comment v0.3.3
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling num-integer v0.1.43
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]    Compiling serde_derive v1.0.115
[INFO] [stderr]    Compiling thiserror-impl v1.0.20
[INFO] [stderr]     Checking rand_chacha v0.1.1
[INFO] [stderr]     Checking rand_hc v0.1.0
[INFO] [stderr]     Checking rand_isaac v0.1.1
[INFO] [stderr]     Checking rand_xorshift v0.1.1
[INFO] [stderr]     Checking yaml-rust v0.4.4
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stderr]     Checking terminal_size v0.1.13
[INFO] [stderr]     Checking termios v0.3.2
[INFO] [stderr]     Checking console v0.11.3
[INFO] [stderr]     Checking rust_decimal v1.7.0
[INFO] [stderr]     Checking chrono v0.4.15
[INFO] [stderr]     Checking thiserror v1.0.20
[INFO] [stderr]     Checking nanoid v0.3.0
[INFO] [stderr]     Checking commodity v0.4.0
[INFO] [stderr]     Checking doublecount v0.8.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking serde v1.0.115
[INFO] [stderr]     Checking serde_yaml v0.8.13
[INFO] [stderr]     Checking insta v0.16.1
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 30.34s
[INFO] running `Command { std: "docker" "inspect" "2ec7fdf5af3033fb21e626b27b3ff1328611fc37135c1f8fce3c3ed840d2a5d5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2ec7fdf5af3033fb21e626b27b3ff1328611fc37135c1f8fce3c3ed840d2a5d5", kill_on_drop: false }`
[INFO] [stdout] 2ec7fdf5af3033fb21e626b27b3ff1328611fc37135c1f8fce3c3ed840d2a5d5