[INFO] fetching crate slog_unwraps 0.1.5...
[INFO] checking slog_unwraps-0.1.5 against try#ae40d86d689c7b8b0a48c1e4b9d38e02bc2beab1 for pr-145108
[INFO] extracting crate slog_unwraps 0.1.5 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate slog_unwraps 0.1.5
[INFO] finished tweaking crates.io crate slog_unwraps 0.1.5
[INFO] tweaked toml for crates.io crate slog_unwraps 0.1.5 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate slog_unwraps 0.1.5 on toolchain ae40d86d689c7b8b0a48c1e4b9d38e02bc2beab1
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ae40d86d689c7b8b0a48c1e4b9d38e02bc2beab1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ae40d86d689c7b8b0a48c1e4b9d38e02bc2beab1" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 88 packages to latest compatible versions
[INFO] [stderr]       Adding pretty_assertions v0.6.1 (available: v1.4.1)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ae40d86d689c7b8b0a48c1e4b9d38e02bc2beab1" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+ae40d86d689c7b8b0a48c1e4b9d38e02bc2beab1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] da82b980078262cd8909b661e94e66e83671f4e5b6dab477cea42680b1cf9e38
[INFO] running `Command { std: "docker" "start" "-a" "da82b980078262cd8909b661e94e66e83671f4e5b6dab477cea42680b1cf9e38", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "da82b980078262cd8909b661e94e66e83671f4e5b6dab477cea42680b1cf9e38", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "da82b980078262cd8909b661e94e66e83671f4e5b6dab477cea42680b1cf9e38", kill_on_drop: false }`
[INFO] [stdout] da82b980078262cd8909b661e94e66e83671f4e5b6dab477cea42680b1cf9e38
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+ae40d86d689c7b8b0a48c1e4b9d38e02bc2beab1" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 818d1cbfa2a930657d7a55d48d3dfa3c48e39ae2f1824565bae8bd7820bbb34e
[INFO] running `Command { std: "docker" "start" "-a" "818d1cbfa2a930657d7a55d48d3dfa3c48e39ae2f1824565bae8bd7820bbb34e", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.175
[INFO] [stderr]     Checking cfg-if v1.0.3
[INFO] [stderr]    Compiling object v0.36.7
[INFO] [stderr]    Compiling slog v2.7.0
[INFO] [stderr]    Compiling time-core v0.1.6
[INFO] [stderr]     Checking gimli v0.31.1
[INFO] [stderr]     Checking aho-corasick v1.1.3
[INFO] [stderr]    Compiling num-conv v0.1.0
[INFO] [stderr]     Checking adler2 v2.0.1
[INFO] [stderr]     Checking powerfmt v0.2.0
[INFO] [stderr]     Checking regex-syntax v0.8.6
[INFO] [stderr]    Compiling time-macros v0.2.24
[INFO] [stderr]     Checking deranged v0.5.3
[INFO] [stderr]     Checking miniz_oxide v0.8.9
[INFO] [stderr]     Checking rustc-demangle v0.1.26
[INFO] [stderr]     Checking thread_local v1.1.9
[INFO] [stderr]     Checking is-terminal v0.4.16
[INFO] [stderr]     Checking term v1.1.0
[INFO] [stderr]     Checking regex-automata v0.4.10
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking difference v2.0.0
[INFO] [stderr]     Checking pretty_assertions v0.6.1
[INFO] [stderr]     Checking time v0.3.43
[INFO] [stderr]     Checking addr2line v0.24.2
[INFO] [stderr]     Checking slog-term v2.9.2
[INFO] [stderr]     Checking backtrace v0.3.75
[INFO] [stderr]     Checking regex v1.11.2
[INFO] [stderr]     Checking slog_unwraps v0.1.5 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 8.43s
[INFO] running `Command { std: "docker" "inspect" "818d1cbfa2a930657d7a55d48d3dfa3c48e39ae2f1824565bae8bd7820bbb34e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "818d1cbfa2a930657d7a55d48d3dfa3c48e39ae2f1824565bae8bd7820bbb34e", kill_on_drop: false }`
[INFO] [stdout] 818d1cbfa2a930657d7a55d48d3dfa3c48e39ae2f1824565bae8bd7820bbb34e