[INFO] fetching crate find_peaks 0.1.5...
[INFO] checking find_peaks-0.1.5 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] extracting crate find_peaks 0.1.5 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate find_peaks 0.1.5 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 find_peaks 0.1.5
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate find_peaks 0.1.5
[INFO] tweaked toml for crates.io crate find_peaks 0.1.5 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate crates.io crate find_peaks 0.1.5 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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded unindent v0.1.9
[INFO] [stderr]   Downloaded pyo3-macros v0.13.2
[INFO] [stderr]   Downloaded ghost v0.1.4
[INFO] [stderr]   Downloaded pyo3-macros-backend v0.13.2
[INFO] [stderr]   Downloaded proc-macro2 v1.0.38
[INFO] [stderr]   Downloaded syn v1.0.94
[INFO] [stderr]   Downloaded pyo3 v0.13.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 642cc354f314383d5dbb0c9ae27ad62a0a2b1e7dbacaa044f96d95e6aa1f183e
[INFO] running `Command { std: "docker" "start" "-a" "642cc354f314383d5dbb0c9ae27ad62a0a2b1e7dbacaa044f96d95e6aa1f183e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "642cc354f314383d5dbb0c9ae27ad62a0a2b1e7dbacaa044f96d95e6aa1f183e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "642cc354f314383d5dbb0c9ae27ad62a0a2b1e7dbacaa044f96d95e6aa1f183e", kill_on_drop: false }`
[INFO] [stdout] 642cc354f314383d5dbb0c9ae27ad62a0a2b1e7dbacaa044f96d95e6aa1f183e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] b245f38595a995f4c4a75fdf465a5042f68904fd09ea87fbbcec0a9288081056
[INFO] running `Command { std: "docker" "start" "-a" "b245f38595a995f4c4a75fdf465a5042f68904fd09ea87fbbcec0a9288081056", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.38
[INFO] [stderr]    Compiling unicode-xid v0.2.3
[INFO] [stderr]    Compiling syn v1.0.94
[INFO] [stderr]    Compiling libc v0.2.125
[INFO] [stderr]    Compiling parking_lot_core v0.8.5
[INFO] [stderr]    Compiling unindent v0.1.9
[INFO] [stderr]    Compiling inventory v0.1.11
[INFO] [stderr]     Checking smallvec v1.8.0
[INFO] [stderr]    Compiling pyo3 v0.13.2
[INFO] [stderr]     Checking find_peaks v0.1.5 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling lock_api v0.4.7
[INFO] [stderr]    Compiling paste-impl v0.1.18
[INFO] [stderr]     Checking paste v0.1.18
[INFO] [stderr]    Compiling quote v1.0.18
[INFO] [stderr]     Checking parking_lot v0.11.2
[INFO] [stderr]    Compiling pyo3-macros-backend v0.13.2
[INFO] [stderr]    Compiling ctor v0.1.22
[INFO] [stderr]    Compiling indoc-impl v0.3.6
[INFO] [stderr]    Compiling ghost v0.1.4
[INFO] [stderr]    Compiling inventory-impl v0.1.11
[INFO] [stderr]    Compiling pyo3-macros v0.13.2
[INFO] [stderr]     Checking indoc v0.3.6
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.14s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: pyo3 v0.13.2, pyo3-macros-backend v0.13.2
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 6`
[INFO] running `Command { std: "docker" "inspect" "b245f38595a995f4c4a75fdf465a5042f68904fd09ea87fbbcec0a9288081056", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b245f38595a995f4c4a75fdf465a5042f68904fd09ea87fbbcec0a9288081056", kill_on_drop: false }`
[INFO] [stdout] b245f38595a995f4c4a75fdf465a5042f68904fd09ea87fbbcec0a9288081056