[INFO] fetching crate safe-builder-derive 0.1.1...
[INFO] checking safe-builder-derive-0.1.1 against master#4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5 for pr-81174
[INFO] extracting crate safe-builder-derive 0.1.1 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate safe-builder-derive 0.1.1 on toolchain 4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate safe-builder-derive 0.1.1
[INFO] finished tweaking crates.io crate safe-builder-derive 0.1.1
[INFO] tweaked toml for crates.io crate safe-builder-derive 0.1.1 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: only one of `license` or `license-file` is necessary
[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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5" "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] 2ce982e6150385d461bcd7b1cb435703e2adddd39896c2ceff9eac46a1ec5a27
[INFO] running `Command { std: "docker" "start" "-a" "2ce982e6150385d461bcd7b1cb435703e2adddd39896c2ceff9eac46a1ec5a27", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2ce982e6150385d461bcd7b1cb435703e2adddd39896c2ceff9eac46a1ec5a27", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2ce982e6150385d461bcd7b1cb435703e2adddd39896c2ceff9eac46a1ec5a27", kill_on_drop: false }`
[INFO] [stdout] 2ce982e6150385d461bcd7b1cb435703e2adddd39896c2ceff9eac46a1ec5a27
[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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ae07ad4ab4abe5e4f7223bdfda0f5c4a4f23f276c4a8bfcc61be108ad50ea0ce
[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" "ae07ad4ab4abe5e4f7223bdfda0f5c4a4f23f276c4a8bfcc61be108ad50ea0ce", kill_on_drop: false }`
[INFO] [stderr] warning: only one of `license` or `license-file` is necessary
[INFO] [stderr]     Checking either v1.6.1
[INFO] [stderr]     Checking syn v0.11.11
[INFO] [stderr]     Checking itertools v0.6.5
[INFO] [stderr]     Checking safe-builder-derive v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::collections::HashMap`
[INFO] [stdout]  --> src/test.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::collections::HashMap;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused macro definition
[INFO] [stdout]   --> src/test.rs:6:1
[INFO] [stdout]    |
[INFO] [stdout] 6  | / macro_rules! syn_type {
[INFO] [stdout] 7  | |     ($e: expr) => ({
[INFO] [stdout] 8  | |         syn::Ty::Path(
[INFO] [stdout] 9  | |             None,
[INFO] [stdout] ...  |
[INFO] [stdout] 29 | |     })
[INFO] [stdout] 30 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_macros)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `actual`
[INFO] [stdout]   --> src/test.rs:45:9
[INFO] [stdout]    |
[INFO] [stdout] 45 |     let actual = target.build();
[INFO] [stdout]    |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_actual`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.42s
[INFO] running `Command { std: "docker" "inspect" "ae07ad4ab4abe5e4f7223bdfda0f5c4a4f23f276c4a8bfcc61be108ad50ea0ce", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ae07ad4ab4abe5e4f7223bdfda0f5c4a4f23f276c4a8bfcc61be108ad50ea0ce", kill_on_drop: false }`
[INFO] [stdout] ae07ad4ab4abe5e4f7223bdfda0f5c4a4f23f276c4a8bfcc61be108ad50ea0ce