[INFO] fetching crate structconf 0.3.2...
[INFO] checking structconf-0.3.2 against master#7b3a7819371cef92a187e9bac8f7810ccde15216 for pr-74846
[INFO] extracting crate structconf 0.3.2 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate structconf 0.3.2 on toolchain 7b3a7819371cef92a187e9bac8f7810ccde15216
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7b3a7819371cef92a187e9bac8f7810ccde15216" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate structconf 0.3.2
[INFO] finished tweaking crates.io crate structconf 0.3.2
[INFO] tweaked toml for crates.io crate structconf 0.3.2 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate crates.io crate structconf 0.3.2 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7b3a7819371cef92a187e9bac8f7810ccde15216" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+7b3a7819371cef92a187e9bac8f7810ccde15216" "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] ace8d3ba4383fe3527d614a15c8707a6c81cb5938b3abcfc9c391c64df367753
[INFO] running `Command { std: "docker" "start" "-a" "ace8d3ba4383fe3527d614a15c8707a6c81cb5938b3abcfc9c391c64df367753", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ace8d3ba4383fe3527d614a15c8707a6c81cb5938b3abcfc9c391c64df367753", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ace8d3ba4383fe3527d614a15c8707a6c81cb5938b3abcfc9c391c64df367753", kill_on_drop: false }`
[INFO] [stdout] ace8d3ba4383fe3527d614a15c8707a6c81cb5938b3abcfc9c391c64df367753
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+7b3a7819371cef92a187e9bac8f7810ccde15216" "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] b6961bf8e8de002d8cbd154349cf09de203280754cbcda460bc1de039cf0565a
[INFO] running `Command { std: "docker" "start" "-a" "b6961bf8e8de002d8cbd154349cf09de203280754cbcda460bc1de039cf0565a", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.18
[INFO] [stderr]    Compiling libc v0.2.72
[INFO] [stderr]    Compiling syn v1.0.34
[INFO] [stderr]    Compiling ident_case v1.0.1
[INFO] [stderr]    Compiling fnv v1.0.7
[INFO] [stderr]    Compiling strsim v0.9.3
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]     Checking ahash v0.3.8
[INFO] [stderr]     Checking vec_map v0.8.2
[INFO] [stderr]    Compiling unicode-segmentation v1.6.0
[INFO] [stderr]     Checking itoa v0.4.6
[INFO] [stderr]    Compiling hashbrown v0.7.2
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]     Checking getrandom v0.1.14
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking dirs-sys v0.3.5
[INFO] [stderr]     Checking dirs v3.0.1
[INFO] [stderr]     Checking clap v2.33.1
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking dlv-list v0.2.2
[INFO] [stderr]     Checking ordered-multimap v0.2.4
[INFO] [stderr]     Checking rust-ini v0.15.3
[INFO] [stderr]    Compiling darling_core v0.10.2
[INFO] [stderr]    Compiling serde_derive v1.0.114
[INFO] [stderr]    Compiling strum_macros v0.18.0
[INFO] [stderr]    Compiling darling_macro v0.10.2
[INFO] [stderr]    Compiling darling v0.10.2
[INFO] [stderr]    Compiling structconf_derive v0.3.2
[INFO] [stderr]     Checking structconf v0.3.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking serde v1.0.114
[INFO] [stderr]     Checking toml v0.5.6
[INFO] [stderr]     Checking serde_json v1.0.56
[INFO] [stderr]     Checking trybuild v1.0.30
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 58.70s
[INFO] running `Command { std: "docker" "inspect" "b6961bf8e8de002d8cbd154349cf09de203280754cbcda460bc1de039cf0565a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b6961bf8e8de002d8cbd154349cf09de203280754cbcda460bc1de039cf0565a", kill_on_drop: false }`
[INFO] [stdout] b6961bf8e8de002d8cbd154349cf09de203280754cbcda460bc1de039cf0565a