[INFO] fetching crate tower-batch 0.1.0...
[INFO] checking tower-batch-0.1.0 against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] extracting crate tower-batch 0.1.0 into /workspace/builds/worker-7-tc1/source
[INFO] validating manifest of crates.io crate tower-batch 0.1.0 on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate tower-batch 0.1.0
[INFO] finished tweaking crates.io crate tower-batch 0.1.0
[INFO] tweaked toml for crates.io crate tower-batch 0.1.0 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 81 packages
[INFO] [stderr]       Adding hashbrown v0.12.3 (latest: v0.14.3)
[INFO] [stderr]       Adding indexmap v1.9.3 (latest: v2.2.6)
[INFO] [stderr]       Adding nu-ansi-term v0.46.0 (latest: v0.50.0)
[INFO] [stderr]       Adding object v0.32.2 (latest: v0.34.0)
[INFO] [stderr]       Adding regex-automata v0.1.10 (latest: v0.4.6)
[INFO] [stderr]       Adding regex-syntax v0.6.29 (latest: v0.8.3)
[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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded tower-test v0.4.0
[INFO] [stderr]   Downloaded hdrhistogram v7.5.4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3437aa77978b4d80b122414e0909875f118f1e8a8c51172e1d64d3071208603b
[INFO] running `Command { std: "docker" "start" "-a" "3437aa77978b4d80b122414e0909875f118f1e8a8c51172e1d64d3071208603b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3437aa77978b4d80b122414e0909875f118f1e8a8c51172e1d64d3071208603b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3437aa77978b4d80b122414e0909875f118f1e8a8c51172e1d64d3071208603b", kill_on_drop: false }`
[INFO] [stdout] 3437aa77978b4d80b122414e0909875f118f1e8a8c51172e1d64d3071208603b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b956d777afaac0be7d46843fcf0a4a612f33af2c581a9f3ef9354bf5e5e953b4
[INFO] running `Command { std: "docker" "start" "-a" "b956d777afaac0be7d46843fcf0a4a612f33af2c581a9f3ef9354bf5e5e953b4", kill_on_drop: false }`
[INFO] [stderr]     Checking tracing-core v0.1.32
[INFO] [stderr]     Checking futures-channel v0.3.30
[INFO] [stderr]    Compiling indexmap v1.9.3
[INFO] [stderr]     Checking regex-syntax v0.8.3
[INFO] [stderr]     Checking tower-layer v0.3.2
[INFO] [stderr]     Checking hashbrown v0.12.3
[INFO] [stderr]     Checking overload v0.1.1
[INFO] [stderr]    Compiling syn v2.0.58
[INFO] [stderr]     Checking matchers v0.1.0
[INFO] [stderr]     Checking hdrhistogram v7.5.4
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking nu-ansi-term v0.46.0
[INFO] [stderr]     Checking tracing-log v0.2.0
[INFO] [stderr]     Checking regex-automata v0.4.6
[INFO] [stderr]     Checking regex v1.10.4
[INFO] [stderr]    Compiling tokio-macros v2.2.0
[INFO] [stderr]    Compiling futures-macro v0.3.30
[INFO] [stderr]    Compiling tracing-attributes v0.1.27
[INFO] [stderr]    Compiling pin-project-internal v1.1.5
[INFO] [stderr]    Compiling async-stream-impl v0.3.5
[INFO] [stderr]     Checking async-stream v0.3.5
[INFO] [stderr]     Checking tokio v1.37.0
[INFO] [stderr]     Checking futures-util v0.3.30
[INFO] [stderr]     Checking pin-project v1.1.5
[INFO] [stderr]     Checking tracing v0.1.40
[INFO] [stderr]     Checking tracing-futures v0.2.5
[INFO] [stderr]     Checking tracing-subscriber v0.3.18
[INFO] [stderr]     Checking tokio-stream v0.1.15
[INFO] [stderr]     Checking tokio-util v0.7.10
[INFO] [stderr]     Checking tokio-test v0.4.4
[INFO] [stderr]     Checking tower v0.4.13
[INFO] [stderr]     Checking futures-executor v0.3.30
[INFO] [stderr]     Checking tower-test v0.4.0
[INFO] [stderr]     Checking futures v0.3.30
[INFO] [stderr]     Checking tower-batch v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 15.21s
[INFO] running `Command { std: "docker" "inspect" "b956d777afaac0be7d46843fcf0a4a612f33af2c581a9f3ef9354bf5e5e953b4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b956d777afaac0be7d46843fcf0a4a612f33af2c581a9f3ef9354bf5e5e953b4", kill_on_drop: false }`
[INFO] [stdout] b956d777afaac0be7d46843fcf0a4a612f33af2c581a9f3ef9354bf5e5e953b4