[INFO] fetching crate slog_unwraps 0.1.5...
[INFO] checking slog_unwraps-0.1.5 against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] extracting crate slog_unwraps 0.1.5 into /workspace/builds/worker-5-tc1/source
[INFO] validating manifest of crates.io crate slog_unwraps 0.1.5 on toolchain ceab6128fa48a616bfd3e3adf4bc80133b8ee223
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[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-5-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 64 packages
[INFO] [stderr]       Adding ansi_term v0.11.0 (latest: v0.12.1)
[INFO] [stderr]       Adding ctor v0.1.26 (latest: v0.2.7)
[INFO] [stderr]       Adding object v0.32.2 (latest: v0.34.0)
[INFO] [stderr]       Adding pretty_assertions v0.6.1 (latest: v1.4.0)
[INFO] [stderr]       Adding syn v1.0.109 (latest: v2.0.58)
[INFO] [stderr]       Adding wasi v0.11.0+wasi-snapshot-preview1 (latest: v0.13.0+wasi-0.2.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5de6bd12844e8762f15aa1e10f263bc3cc319446ee67504ed8b681b95b656229
[INFO] running `Command { std: "docker" "start" "-a" "5de6bd12844e8762f15aa1e10f263bc3cc319446ee67504ed8b681b95b656229", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5de6bd12844e8762f15aa1e10f263bc3cc319446ee67504ed8b681b95b656229", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5de6bd12844e8762f15aa1e10f263bc3cc319446ee67504ed8b681b95b656229", kill_on_drop: false }`
[INFO] [stdout] 5de6bd12844e8762f15aa1e10f263bc3cc319446ee67504ed8b681b95b656229
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4bc7ab9b6a2f220d4c748266eb310ea338a55bd058939f2d10fb3b8c2cfa7bc2
[INFO] running `Command { std: "docker" "start" "-a" "4bc7ab9b6a2f220d4c748266eb310ea338a55bd058939f2d10fb3b8c2cfa7bc2", kill_on_drop: false }`
[INFO] [stderr]     Checking memchr v2.7.2
[INFO] [stderr]    Compiling slog v2.7.0
[INFO] [stderr]    Compiling time-core v0.1.2
[INFO] [stderr]     Checking dirs-sys-next v0.1.2
[INFO] [stderr]     Checking regex-syntax v0.8.3
[INFO] [stderr]    Compiling num-conv v0.1.0
[INFO] [stderr]     Checking addr2line v0.21.0
[INFO] [stderr]     Checking deranged v0.3.11
[INFO] [stderr]     Checking is-terminal v0.4.12
[INFO] [stderr]     Checking dirs-next v2.0.0
[INFO] [stderr]     Checking difference v2.0.0
[INFO] [stderr]     Checking term v0.7.0
[INFO] [stderr]    Compiling time-macros v0.2.17
[INFO] [stderr]     Checking pretty_assertions v0.6.1
[INFO] [stderr]     Checking aho-corasick v1.1.3
[INFO] [stderr]     Checking object v0.32.2
[INFO] [stderr]     Checking time v0.3.34
[INFO] [stderr]     Checking regex-automata v0.4.6
[INFO] [stderr]     Checking slog-term v2.9.1
[INFO] [stderr]     Checking backtrace v0.3.71
[INFO] [stderr]     Checking regex v1.10.4
[INFO] [stderr]     Checking slog_unwraps v0.1.5 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.57s
[INFO] running `Command { std: "docker" "inspect" "4bc7ab9b6a2f220d4c748266eb310ea338a55bd058939f2d10fb3b8c2cfa7bc2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4bc7ab9b6a2f220d4c748266eb310ea338a55bd058939f2d10fb3b8c2cfa7bc2", kill_on_drop: false }`
[INFO] [stdout] 4bc7ab9b6a2f220d4c748266eb310ea338a55bd058939f2d10fb3b8c2cfa7bc2