[INFO] fetching crate piper 0.2.4...
[INFO] checking piper-0.2.4 against master#642c19bfc3a5c1de985bf5d0cc8207ac9d22708a for pr-148577
[INFO] extracting crate piper 0.2.4 into /workspace/builds/worker-2-tc1/source
[INFO] started tweaking crates.io crate piper 0.2.4
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate piper 0.2.4
[INFO] tweaked toml for crates.io crate piper 0.2.4 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate piper 0.2.4 on toolchain 642c19bfc3a5c1de985bf5d0cc8207ac9d22708a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+642c19bfc3a5c1de985bf5d0cc8207ac9d22708a" "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" "+642c19bfc3a5c1de985bf5d0cc8207ac9d22708a" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 77 packages to latest compatible versions
[INFO] [stderr]       Adding criterion v0.4.0 (available: v0.7.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+642c19bfc3a5c1de985bf5d0cc8207ac9d22708a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded easy-parallel v3.3.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+642c19bfc3a5c1de985bf5d0cc8207ac9d22708a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 19d62f6e51779b1f34fb11b3acffbd1068c6c8dbee8b27c183d69b2bddfe97a7
[INFO] running `Command { std: "docker" "start" "-a" "19d62f6e51779b1f34fb11b3acffbd1068c6c8dbee8b27c183d69b2bddfe97a7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "19d62f6e51779b1f34fb11b3acffbd1068c6c8dbee8b27c183d69b2bddfe97a7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "19d62f6e51779b1f34fb11b3acffbd1068c6c8dbee8b27c183d69b2bddfe97a7", kill_on_drop: false }`
[INFO] [stdout] 19d62f6e51779b1f34fb11b3acffbd1068c6c8dbee8b27c183d69b2bddfe97a7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+642c19bfc3a5c1de985bf5d0cc8207ac9d22708a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d14072574a0352fdb9551d62240d59f0d496c2b268902e0617fdf2baa38a1d7f
[INFO] running `Command { std: "docker" "start" "-a" "d14072574a0352fdb9551d62240d59f0d496c2b268902e0617fdf2baa38a1d7f", kill_on_drop: false }`
[INFO] [stderr]    Compiling zerocopy v0.8.27
[INFO] [stderr]    Compiling indexmap v1.9.3
[INFO] [stderr]    Compiling libc v0.2.177
[INFO] [stderr]    Compiling rustix v1.1.2
[INFO] [stderr]    Compiling zerocopy-derive v0.8.27
[INFO] [stderr]    Compiling serde_derive v1.0.228
[INFO] [stderr]     Checking regex-automata v0.4.13
[INFO] [stderr]     Checking serde_json v1.0.145
[INFO] [stderr]     Checking futures-lite v2.6.1
[INFO] [stderr]     Checking textwrap v0.16.2
[INFO] [stderr]     Checking clap v3.2.25
[INFO] [stderr]     Checking async-channel v2.5.0
[INFO] [stderr]     Checking easy-parallel v3.3.1
[INFO] [stderr]     Checking piper v0.2.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking async-executor v1.13.3
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking regex v1.12.2
[INFO] [stderr]     Checking serde v1.0.228
[INFO] [stderr]     Checking tinytemplate v1.2.1
[INFO] [stderr]     Checking half v2.7.1
[INFO] [stderr]     Checking polling v3.11.0
[INFO] [stderr]     Checking ciborium-ll v0.2.2
[INFO] [stderr]     Checking ciborium v0.2.2
[INFO] [stderr]     Checking async-io v2.6.0
[INFO] [stderr]     Checking criterion v0.4.0
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 21.68s
[INFO] running `Command { std: "docker" "inspect" "d14072574a0352fdb9551d62240d59f0d496c2b268902e0617fdf2baa38a1d7f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d14072574a0352fdb9551d62240d59f0d496c2b268902e0617fdf2baa38a1d7f", kill_on_drop: false }`
[INFO] [stdout] d14072574a0352fdb9551d62240d59f0d496c2b268902e0617fdf2baa38a1d7f