[INFO] fetching crate now-collector 0.2.0...
[INFO] checking now-collector-0.2.0 against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] extracting crate now-collector 0.2.0 into /workspace/builds/worker-1-tc1/source
[INFO] validating manifest of crates.io crate now-collector 0.2.0 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 now-collector 0.2.0
[INFO] finished tweaking crates.io crate now-collector 0.2.0
[INFO] tweaked toml for crates.io crate now-collector 0.2.0 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] crate crates.io crate now-collector 0.2.0 already has a lockfile, it will not be regenerated
[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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded miniz_oxide v0.5.0
[INFO] [stderr]   Downloaded serde_yaml v0.8.21
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 32d0cddbbba7539cb51877a52a670e73a61652dbb95fbb39d52a7d4248433ed4
[INFO] running `Command { std: "docker" "start" "-a" "32d0cddbbba7539cb51877a52a670e73a61652dbb95fbb39d52a7d4248433ed4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "32d0cddbbba7539cb51877a52a670e73a61652dbb95fbb39d52a7d4248433ed4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "32d0cddbbba7539cb51877a52a670e73a61652dbb95fbb39d52a7d4248433ed4", kill_on_drop: false }`
[INFO] [stdout] 32d0cddbbba7539cb51877a52a670e73a61652dbb95fbb39d52a7d4248433ed4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] c1716e0eec522cec062185156c2bb50a9eb4e32257755b032707fe916b0f0b0f
[INFO] running `Command { std: "docker" "start" "-a" "c1716e0eec522cec062185156c2bb50a9eb4e32257755b032707fe916b0f0b0f", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.32
[INFO] [stderr]    Compiling syn v1.0.81
[INFO] [stderr]    Compiling libc v0.2.107
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling serde_derive v1.0.130
[INFO] [stderr]    Compiling futures-core v0.3.17
[INFO] [stderr]     Checking pin-project-lite v0.2.7
[INFO] [stderr]    Compiling serde v1.0.130
[INFO] [stderr]    Compiling futures-task v0.3.17
[INFO] [stderr]     Checking itoa v0.4.8
[INFO] [stderr]    Compiling futures-util v0.3.17
[INFO] [stderr]    Compiling tokio v1.13.0
[INFO] [stderr]    Compiling indexmap v1.7.0
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling futures-channel v0.3.17
[INFO] [stderr]    Compiling httparse v1.5.1
[INFO] [stderr]     Checking tracing-core v0.1.21
[INFO] [stderr]     Checking http v0.2.5
[INFO] [stderr]     Checking hashbrown v0.11.2
[INFO] [stderr]     Checking try-lock v0.2.3
[INFO] [stderr]    Compiling anyhow v1.0.45
[INFO] [stderr]    Compiling serde_json v1.0.69
[INFO] [stderr]     Checking linked-hash-map v0.5.4
[INFO] [stderr]     Checking unicode-width v0.1.9
[INFO] [stderr]     Checking tracing v0.1.29
[INFO] [stderr]     Checking httpdate v1.0.1
[INFO] [stderr]     Checking termcolor v1.1.2
[INFO] [stderr]     Checking tower-service v0.3.1
[INFO] [stderr]     Checking want v0.3.0
[INFO] [stderr]     Checking dtoa v0.4.8
[INFO] [stderr]     Checking aho-corasick v0.7.18
[INFO] [stderr]     Checking yaml-rust v0.4.5
[INFO] [stderr]     Checking miniz_oxide v0.5.0
[INFO] [stderr]     Checking getopts v0.2.21
[INFO] [stderr]    Compiling quote v1.0.10
[INFO] [stderr]     Checking regex v1.5.4
[INFO] [stderr]     Checking mio v0.7.14
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking socket2 v0.4.2
[INFO] [stderr]     Checking env_logger v0.9.0
[INFO] [stderr]     Checking http-body v0.4.4
[INFO] [stderr]    Compiling tokio-macros v1.5.1
[INFO] [stderr]     Checking hyper v0.14.14
[INFO] [stderr]     Checking serde_yaml v0.8.21
[INFO] [stderr]     Checking now-collector v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 7.37s
[INFO] running `Command { std: "docker" "inspect" "c1716e0eec522cec062185156c2bb50a9eb4e32257755b032707fe916b0f0b0f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c1716e0eec522cec062185156c2bb50a9eb4e32257755b032707fe916b0f0b0f", kill_on_drop: false }`
[INFO] [stdout] c1716e0eec522cec062185156c2bb50a9eb4e32257755b032707fe916b0f0b0f