[INFO] fetching crate pot 3.0.0...
[INFO] checking pot-3.0.0 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] extracting crate pot 3.0.0 into /workspace/builds/worker-2-tc1/source
[INFO] validating manifest of crates.io crate pot 3.0.0 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 pot 3.0.0
[INFO] finished tweaking crates.io crate pot 3.0.0
[INFO] tweaked toml for crates.io crate pot 3.0.0 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate crates.io crate pot 3.0.0 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 half v2.3.1
[INFO] [stderr]   Downloaded serde_bytes v0.11.12
[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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 08b7cc807e6195c9d27004eb51ea01181f7d18198133eb426985c0dc6bbcaa2f
[INFO] running `Command { std: "docker" "start" "-a" "08b7cc807e6195c9d27004eb51ea01181f7d18198133eb426985c0dc6bbcaa2f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "08b7cc807e6195c9d27004eb51ea01181f7d18198133eb426985c0dc6bbcaa2f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "08b7cc807e6195c9d27004eb51ea01181f7d18198133eb426985c0dc6bbcaa2f", kill_on_drop: false }`
[INFO] [stdout] 08b7cc807e6195c9d27004eb51ea01181f7d18198133eb426985c0dc6bbcaa2f
[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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9fad5be12e37cfc297963eafd74f362f371db3d4c9a114bbcde66cd51fa80f84
[INFO] running `Command { std: "docker" "start" "-a" "9fad5be12e37cfc297963eafd74f362f371db3d4c9a114bbcde66cd51fa80f84", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.178
[INFO] [stderr]    Compiling serde_derive v1.0.178
[INFO] [stderr]     Checking half v2.3.1
[INFO] [stderr]    Compiling quote v1.0.32
[INFO] [stderr]     Checking tracing-log v0.1.3
[INFO] [stderr]     Checking approx v0.5.1
[INFO] [stderr]     Checking tracing-subscriber v0.3.17
[INFO] [stderr]    Compiling syn v2.0.27
[INFO] [stderr]     Checking serde_bytes v0.11.12
[INFO] [stderr]     Checking pot v3.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling tracing-attributes v0.1.26
[INFO] [stderr]     Checking tracing v0.1.37
[INFO] [stdout] warning: the item `Value` is imported redundantly
[INFO] [stdout]    --> src/lib.rs:198:9
[INFO] [stdout]     |
[INFO] [stdout] 196 |     use super::*;
[INFO] [stdout]     |         -------- the item `Value` is already imported here
[INFO] [stdout] 197 |     use crate::format::{Float, Integer, CURRENT_VERSION};
[INFO] [stdout] 198 |     use crate::value::Value;
[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 9.60s
[INFO] running `Command { std: "docker" "inspect" "9fad5be12e37cfc297963eafd74f362f371db3d4c9a114bbcde66cd51fa80f84", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9fad5be12e37cfc297963eafd74f362f371db3d4c9a114bbcde66cd51fa80f84", kill_on_drop: false }`
[INFO] [stdout] 9fad5be12e37cfc297963eafd74f362f371db3d4c9a114bbcde66cd51fa80f84