[INFO] fetching crate constriction 0.3.2...
[INFO] checking constriction-0.3.2 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] extracting crate constriction 0.3.2 into /workspace/builds/worker-3-tc1/source
[INFO] validating manifest of crates.io crate constriction 0.3.2 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] removed /workspace/builds/worker-3-tc1/source/.cargo/config
[INFO] started tweaking crates.io crate constriction 0.3.2
[INFO] finished tweaking crates.io crate constriction 0.3.2
[INFO] tweaked toml for crates.io crate constriction 0.3.2 written to /workspace/builds/worker-3-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]     Updating crates.io index
[INFO] [stderr]      Locking 122 packages
[INFO] [stderr]       Adding anes v0.1.6 (latest: v0.2.0)
[INFO] [stderr]       Adding bitflags v1.3.2 (latest: v2.5.0)
[INFO] [stderr]       Adding indoc v1.0.9 (latest: v2.0.5)
[INFO] [stderr]       Adding itertools v0.10.5 (latest: v0.12.1)
[INFO] [stderr]       Adding numpy v0.19.0 (latest: v0.21.0)
[INFO] [stderr]       Adding pyo3 v0.19.2 (latest: v0.21.1)
[INFO] [stderr]       Adding pyo3-build-config v0.19.2 (latest: v0.21.1)
[INFO] [stderr]       Adding pyo3-ffi v0.19.2 (latest: v0.21.1)
[INFO] [stderr]       Adding pyo3-macros v0.19.2 (latest: v0.21.1)
[INFO] [stderr]       Adding pyo3-macros-backend v0.19.2 (latest: v0.21.1)
[INFO] [stderr]       Adding random v0.13.2 (latest: v0.14.0)
[INFO] [stderr]       Adding redox_syscall v0.4.1 (latest: v0.5.1)
[INFO] [stderr]       Adding syn v1.0.109 (latest: v2.0.58)
[INFO] [stderr]       Adding unindent v0.1.11 (latest: v0.2.3)
[INFO] [stderr]       Adding wasi v0.11.0+wasi-snapshot-preview1 (latest: v0.13.0+wasi-0.2.0)
[INFO] [stderr]       Adding windows-targets v0.48.5 (latest: v0.52.4)
[INFO] [stderr]       Adding windows_aarch64_gnullvm v0.48.5 (latest: v0.52.4)
[INFO] [stderr]       Adding windows_aarch64_msvc v0.48.5 (latest: v0.52.4)
[INFO] [stderr]       Adding windows_i686_gnu v0.48.5 (latest: v0.52.4)
[INFO] [stderr]       Adding windows_i686_msvc v0.48.5 (latest: v0.52.4)
[INFO] [stderr]       Adding windows_x86_64_gnu v0.48.5 (latest: v0.52.4)
[INFO] [stderr]       Adding windows_x86_64_gnullvm v0.48.5 (latest: v0.52.4)
[INFO] [stderr]       Adding windows_x86_64_msvc v0.48.5 (latest: v0.52.4)
[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 indoc v1.0.9
[INFO] [stderr]   Downloaded unindent v0.1.11
[INFO] [stderr]   Downloaded pyo3-macros v0.19.2
[INFO] [stderr]   Downloaded random v0.13.2
[INFO] [stderr]   Downloaded pyo3-ffi v0.19.2
[INFO] [stderr]   Downloaded numpy v0.19.0
[INFO] [stderr]   Downloaded special v0.10.3
[INFO] [stderr]   Downloaded pyo3 v0.19.2
[INFO] [stderr]   Downloaded probability v0.20.3
[INFO] [stderr]   Downloaded pyo3-build-config v0.19.2
[INFO] [stderr]   Downloaded pyo3-macros-backend v0.19.2
[INFO] [stderr]   Downloaded rand_pcg v0.3.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 898fd5cd26bc8dfb821f7f56bcb6be945e2694c5c0b9b00d37302b1ed7f03fd4
[INFO] running `Command { std: "docker" "start" "-a" "898fd5cd26bc8dfb821f7f56bcb6be945e2694c5c0b9b00d37302b1ed7f03fd4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "898fd5cd26bc8dfb821f7f56bcb6be945e2694c5c0b9b00d37302b1ed7f03fd4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "898fd5cd26bc8dfb821f7f56bcb6be945e2694c5c0b9b00d37302b1ed7f03fd4", kill_on_drop: false }`
[INFO] [stdout] 898fd5cd26bc8dfb821f7f56bcb6be945e2694c5c0b9b00d37302b1ed7f03fd4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 68661689b89a6f8a17d993028e9f9743f39bee3a8edf28682255f156271c3314
[INFO] running `Command { std: "docker" "start" "-a" "68661689b89a6f8a17d993028e9f9743f39bee3a8edf28682255f156271c3314", kill_on_drop: false }`
[INFO] [stderr]     Checking half v2.4.0
[INFO] [stderr]     Checking ciborium-io v0.2.2
[INFO] [stderr]     Checking anstyle v1.0.6
[INFO] [stderr]    Compiling num-traits v0.2.18
[INFO] [stderr]     Checking clap_lex v0.7.0
[INFO] [stderr]     Checking random v0.13.2
[INFO] [stderr]     Checking special v0.10.3
[INFO] [stderr]     Checking criterion-plot v0.5.0
[INFO] [stderr]    Compiling serde_derive v1.0.197
[INFO] [stderr]     Checking hashbrown v0.14.3
[INFO] [stderr]     Checking anes v0.1.6
[INFO] [stderr]     Checking rand_pcg v0.3.1
[INFO] [stderr]     Checking rand_xoshiro v0.6.0
[INFO] [stderr]     Checking probability v0.20.3
[INFO] [stderr]     Checking clap_builder v4.5.2
[INFO] [stderr]     Checking ciborium-ll v0.2.2
[INFO] [stderr]     Checking plotters v0.3.5
[INFO] [stderr]     Checking constriction v0.3.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking clap v4.5.4
[INFO] [stderr]     Checking serde v1.0.197
[INFO] [stderr]     Checking serde_json v1.0.115
[INFO] [stderr]     Checking ciborium v0.2.2
[INFO] [stderr]     Checking tinytemplate v1.2.1
[INFO] [stderr]     Checking criterion v0.5.1
[INFO] [stdout] warning: the item `UnwrapInfallible` is imported redundantly
[INFO] [stdout]    --> src/symbol/mod.rs:806:9
[INFO] [stdout]     |
[INFO] [stdout] 803 |         *,
[INFO] [stdout]     |         - the item `UnwrapInfallible` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 806 |     use crate::UnwrapInfallible;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 9.35s
[INFO] running `Command { std: "docker" "inspect" "68661689b89a6f8a17d993028e9f9743f39bee3a8edf28682255f156271c3314", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "68661689b89a6f8a17d993028e9f9743f39bee3a8edf28682255f156271c3314", kill_on_drop: false }`
[INFO] [stdout] 68661689b89a6f8a17d993028e9f9743f39bee3a8edf28682255f156271c3314