[INFO] fetching crate definition_string 0.1.2...
[INFO] checking definition_string-0.1.2 against master#350d0ef0ec0493e6d21cfb265cb8211a0e74d766 for pr-145342-1
[INFO] extracting crate definition_string 0.1.2 into /workspace/builds/worker-4-tc1/source
[INFO] started tweaking crates.io crate definition_string 0.1.2
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate definition_string 0.1.2
[INFO] tweaked toml for crates.io crate definition_string 0.1.2 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate definition_string 0.1.2 on toolchain 350d0ef0ec0493e6d21cfb265cb8211a0e74d766
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate definition_string 0.1.2 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" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded rust-format v0.3.4
[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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6d9a11f340d27fe149bea81266683843ce434f6f794c07ed356ee85d631516df
[INFO] running `Command { std: "docker" "start" "-a" "6d9a11f340d27fe149bea81266683843ce434f6f794c07ed356ee85d631516df", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6d9a11f340d27fe149bea81266683843ce434f6f794c07ed356ee85d631516df", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6d9a11f340d27fe149bea81266683843ce434f6f794c07ed356ee85d631516df", kill_on_drop: false }`
[INFO] [stdout] 6d9a11f340d27fe149bea81266683843ce434f6f794c07ed356ee85d631516df
[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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f919392c9fe8994b9ac2b8e55fcc021665d8aed0b78da226b2a93c6702f936df
[INFO] running `Command { std: "docker" "start" "-a" "f919392c9fe8994b9ac2b8e55fcc021665d8aed0b78da226b2a93c6702f936df", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.93
[INFO] [stderr]     Checking unicode-ident v1.0.14
[INFO] [stderr]     Checking rust-format v0.3.4
[INFO] [stderr]     Checking quote v1.0.38
[INFO] [stderr]     Checking syn v2.0.96
[INFO] [stderr]     Checking definition_string v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `stuff` is never read
[INFO] [stdout]   --> tests/tests.rs:82:9
[INFO] [stdout]    |
[INFO] [stdout] 81 |     pub struct VerySimpleStruct {
[INFO] [stdout]    |                ---------------- field in this struct
[INFO] [stdout] 82 |         stuff: i32,
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `One`, `Two`, and `Three` are never constructed
[INFO] [stdout]    --> tests/tests.rs:99:9
[INFO] [stdout]     |
[INFO] [stdout]  98 |     pub enum VerySimpleEnum {
[INFO] [stdout]     |              -------------- variants in this enum
[INFO] [stdout]  99 |         One,
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 100 |         Two,
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 101 |         Three,
[INFO] [stdout]     |         ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `One`, `Two`, and `Three` are never constructed
[INFO] [stdout]    --> tests/tests.rs:122:9
[INFO] [stdout]     |
[INFO] [stdout] 120 |     pub enum EnumWithCommentsAndDerive {
[INFO] [stdout]     |              ------------------------- variants in this enum
[INFO] [stdout] 121 |         //This is One.
[INFO] [stdout] 122 |         One,
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 123 |         Two,
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 124 |         //This is Three.
[INFO] [stdout] 125 |         Three,
[INFO] [stdout]     |         ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `EnumWithCommentsAndDerive` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 11.05s
[INFO] running `Command { std: "docker" "inspect" "f919392c9fe8994b9ac2b8e55fcc021665d8aed0b78da226b2a93c6702f936df", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f919392c9fe8994b9ac2b8e55fcc021665d8aed0b78da226b2a93c6702f936df", kill_on_drop: false }`
[INFO] [stdout] f919392c9fe8994b9ac2b8e55fcc021665d8aed0b78da226b2a93c6702f936df