[INFO] fetching crate parse-display 0.8.2...
[INFO] checking parse-display-0.8.2 against master#af4a5a13a15fa0c60e06321077ef452f769b42fd for pr-122960-2
[INFO] extracting crate parse-display 0.8.2 into /workspace/builds/worker-1-tc1/source
[INFO] validating manifest of crates.io crate parse-display 0.8.2 on toolchain af4a5a13a15fa0c60e06321077ef452f769b42fd
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate parse-display 0.8.2
[INFO] finished tweaking crates.io crate parse-display 0.8.2
[INFO] tweaked toml for crates.io crate parse-display 0.8.2 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 15 packages
[INFO] [stderr]       Adding parse-display-derive v0.8.2 (latest: v0.9.0)
[INFO] [stderr]       Adding regex-syntax v0.7.5 (latest: v0.8.3)
[INFO] [stderr]       Adding structmeta v0.2.0 (latest: v0.3.0)
[INFO] [stderr]       Adding structmeta-derive v0.2.0 (latest: v0.3.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded structmeta-derive v0.2.0
[INFO] [stderr]   Downloaded parse-display-derive v0.8.2
[INFO] [stderr]   Downloaded structmeta v0.2.0
[INFO] [stderr]   Downloaded regex-syntax v0.7.5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b1d451a17d537805577af68e519af177a4ba69b07c37cf7f272a4154ede1d5b8
[INFO] running `Command { std: "docker" "start" "-a" "b1d451a17d537805577af68e519af177a4ba69b07c37cf7f272a4154ede1d5b8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b1d451a17d537805577af68e519af177a4ba69b07c37cf7f272a4154ede1d5b8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b1d451a17d537805577af68e519af177a4ba69b07c37cf7f272a4154ede1d5b8", kill_on_drop: false }`
[INFO] [stdout] b1d451a17d537805577af68e519af177a4ba69b07c37cf7f272a4154ede1d5b8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c2356fee06fd993ff5d5926e448324a9e35b2dbea17f2f2a63ff876c71062191
[INFO] running `Command { std: "docker" "start" "-a" "c2356fee06fd993ff5d5926e448324a9e35b2dbea17f2f2a63ff876c71062191", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.7.2
[INFO] [stderr]    Compiling regex-syntax v0.8.3
[INFO] [stderr]    Compiling regex-syntax v0.7.5
[INFO] [stderr]    Compiling syn v2.0.57
[INFO] [stderr]     Checking aho-corasick v1.1.3
[INFO] [stderr]     Checking regex-automata v0.4.6
[INFO] [stderr]    Compiling structmeta-derive v0.2.0
[INFO] [stderr]    Compiling regex v1.10.4
[INFO] [stderr]    Compiling structmeta v0.2.0
[INFO] [stderr]    Compiling parse-display-derive v0.8.2
[INFO] [stderr]     Checking parse-display v0.8.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `TeseDisplay` is never constructed
[INFO] [stdout]  --> src/tests.rs:5:12
[INFO] [stdout]   |
[INFO] [stdout] 5 |     struct TeseDisplay(u32);
[INFO] [stdout]   |            ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]  --> src/tests.rs:9:24
[INFO] [stdout]   |
[INFO] [stdout] 9 |     struct TeseFromStr(u32);
[INFO] [stdout]   |            ----------- ^^^
[INFO] [stdout]   |            |
[INFO] [stdout]   |            field in this struct
[INFO] [stdout]   |
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]   |
[INFO] [stdout] 9 |     struct TeseFromStr(());
[INFO] [stdout]   |                        ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `TeseDisplay` is never constructed
[INFO] [stdout]   --> src/tests.rs:20:12
[INFO] [stdout]    |
[INFO] [stdout] 20 |     struct TeseDisplay(u32);
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/tests.rs:24:24
[INFO] [stdout]    |
[INFO] [stdout] 24 |     struct TeseFromStr(u32);
[INFO] [stdout]    |            ----------- ^^^
[INFO] [stdout]    |            |
[INFO] [stdout]    |            field in this struct
[INFO] [stdout]    |
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 24 |     struct TeseFromStr(());
[INFO] [stdout]    |                        ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 25.42s
[INFO] running `Command { std: "docker" "inspect" "c2356fee06fd993ff5d5926e448324a9e35b2dbea17f2f2a63ff876c71062191", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c2356fee06fd993ff5d5926e448324a9e35b2dbea17f2f2a63ff876c71062191", kill_on_drop: false }`
[INFO] [stdout] c2356fee06fd993ff5d5926e448324a9e35b2dbea17f2f2a63ff876c71062191