[INFO] fetching crate locspan-derive 0.6.0...
[INFO] checking locspan-derive-0.6.0 against try#24cd45d7714ba43afd4b8e62fb677b069b21c4a5 for pr-129543
[INFO] extracting crate locspan-derive 0.6.0 into /workspace/builds/worker-4-tc2/source
[INFO] validating manifest of crates.io crate locspan-derive 0.6.0 on toolchain 24cd45d7714ba43afd4b8e62fb677b069b21c4a5
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+24cd45d7714ba43afd4b8e62fb677b069b21c4a5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate locspan-derive 0.6.0
[INFO] finished tweaking crates.io crate locspan-derive 0.6.0
[INFO] tweaked toml for crates.io crate locspan-derive 0.6.0 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] crate crates.io crate locspan-derive 0.6.0 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" "+24cd45d7714ba43afd4b8e62fb677b069b21c4a5" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+24cd45d7714ba43afd4b8e62fb677b069b21c4a5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1e9d47d5815e98b480fefcb04f9486771ca2f53fe1c62f088e729be655659dbf
[INFO] running `Command { std: "docker" "start" "-a" "1e9d47d5815e98b480fefcb04f9486771ca2f53fe1c62f088e729be655659dbf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1e9d47d5815e98b480fefcb04f9486771ca2f53fe1c62f088e729be655659dbf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1e9d47d5815e98b480fefcb04f9486771ca2f53fe1c62f088e729be655659dbf", kill_on_drop: false }`
[INFO] [stdout] 1e9d47d5815e98b480fefcb04f9486771ca2f53fe1c62f088e729be655659dbf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+24cd45d7714ba43afd4b8e62fb677b069b21c4a5" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 15998225576b6ad72114cd03a1b31a7f1c57c07915fdf1aca7c96a8c08f1bd8b
[INFO] running `Command { std: "docker" "start" "-a" "15998225576b6ad72114cd03a1b31a7f1c57c07915fdf1aca7c96a8c08f1bd8b", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.40
[INFO] [stderr]    Compiling quote v1.0.20
[INFO] [stderr]    Compiling unicode-ident v1.0.1
[INFO] [stderr]    Compiling syn v1.0.98
[INFO] [stderr]     Checking locspan v0.7.0
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]     Checking locspan-derive v0.6.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: method `inner` is never used
[INFO] [stdout]    --> src/util.rs:288:5
[INFO] [stdout]     |
[INFO] [stdout] 284 | pub trait FilterAttrs<'a> {
[INFO] [stdout]     |           ----------- method in this trait
[INFO] [stdout] ...
[INFO] [stdout] 288 |     fn inner(self) -> Self::Ret;
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `inner` is never used
[INFO] [stdout]    --> src/util.rs:288:5
[INFO] [stdout]     |
[INFO] [stdout] 284 | pub trait FilterAttrs<'a> {
[INFO] [stdout]     |           ----------- method in this trait
[INFO] [stdout] ...
[INFO] [stdout] 288 |     fn inner(self) -> Self::Ret;
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `inner` is never used
[INFO] [stdout]    --> src/util.rs:288:5
[INFO] [stdout]     |
[INFO] [stdout] 284 | pub trait FilterAttrs<'a> {
[INFO] [stdout]     |           ----------- method in this trait
[INFO] [stdout] ...
[INFO] [stdout] 288 |     fn inner(self) -> Self::Ret;
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` 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 5.29s
[INFO] running `Command { std: "docker" "inspect" "15998225576b6ad72114cd03a1b31a7f1c57c07915fdf1aca7c96a8c08f1bd8b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "15998225576b6ad72114cd03a1b31a7f1c57c07915fdf1aca7c96a8c08f1bd8b", kill_on_drop: false }`
[INFO] [stdout] 15998225576b6ad72114cd03a1b31a7f1c57c07915fdf1aca7c96a8c08f1bd8b