[INFO] fetching crate mprober-lib 0.1.15...
[INFO] checking mprober-lib-0.1.15 against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] extracting crate mprober-lib 0.1.15 into /workspace/builds/worker-0-tc1/source
[INFO] validating manifest of crates.io crate mprober-lib 0.1.15 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 mprober-lib 0.1.15
[INFO] finished tweaking crates.io crate mprober-lib 0.1.15
[INFO] tweaked toml for crates.io crate mprober-lib 0.1.15 written to /workspace/builds/worker-0-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 51 packages
[INFO] [stderr]       Adding windows-core v0.52.0 (latest: v0.55.0)
[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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded utf8-width v0.1.7
[INFO] [stderr]   Downloaded enum-ordinalize v4.3.0
[INFO] [stderr]   Downloaded page_size v0.6.0
[INFO] [stderr]   Downloaded generic-array v1.0.0
[INFO] [stderr]   Downloaded enum-ordinalize-derive v4.3.1
[INFO] [stderr]   Downloaded scanner-rust v2.0.17
[INFO] [stderr]   Downloaded bencher v0.1.5
[INFO] [stderr]   Downloaded educe v0.5.11
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] b5aa39629a53d9a0f7dace141fb0c103dc2abe684804b91057e5019b2103bb68
[INFO] running `Command { std: "docker" "start" "-a" "b5aa39629a53d9a0f7dace141fb0c103dc2abe684804b91057e5019b2103bb68", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b5aa39629a53d9a0f7dace141fb0c103dc2abe684804b91057e5019b2103bb68", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b5aa39629a53d9a0f7dace141fb0c103dc2abe684804b91057e5019b2103bb68", kill_on_drop: false }`
[INFO] [stdout] b5aa39629a53d9a0f7dace141fb0c103dc2abe684804b91057e5019b2103bb68
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] cef2a3c981315293bb841352fd825aaace5d1d4cdc23c0aab0653652f382d696
[INFO] running `Command { std: "docker" "start" "-a" "cef2a3c981315293bb841352fd825aaace5d1d4cdc23c0aab0653652f382d696", kill_on_drop: false }`
[INFO] [stderr]    Compiling typenum v1.17.0
[INFO] [stderr]     Checking utf8-width v0.1.7
[INFO] [stderr]     Checking bencher v0.1.5
[INFO] [stderr]    Compiling syn v2.0.58
[INFO] [stderr]     Checking page_size v0.6.0
[INFO] [stderr]     Checking chrono v0.4.37
[INFO] [stderr]     Checking generic-array v1.0.0
[INFO] [stderr]    Compiling enum-ordinalize-derive v4.3.1
[INFO] [stderr]    Compiling enum-ordinalize v4.3.0
[INFO] [stderr]    Compiling educe v0.5.11
[INFO] [stderr]     Checking scanner-rust v2.0.17
[INFO] [stderr]     Checking mprober-lib v0.1.15 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.31s
[INFO] running `Command { std: "docker" "inspect" "cef2a3c981315293bb841352fd825aaace5d1d4cdc23c0aab0653652f382d696", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cef2a3c981315293bb841352fd825aaace5d1d4cdc23c0aab0653652f382d696", kill_on_drop: false }`
[INFO] [stdout] cef2a3c981315293bb841352fd825aaace5d1d4cdc23c0aab0653652f382d696