[INFO] fetching crate stability 0.2.1...
[INFO] testing stability-0.2.1 against 1.90.0 for beta-1.91-3
[INFO] extracting crate stability 0.2.1 into /workspace/builds/worker-0-tc1/source
[INFO] started tweaking crates.io crate stability 0.2.1
[INFO] finished tweaking crates.io crate stability 0.2.1
[INFO] tweaked toml for crates.io crate stability 0.2.1 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate stability 0.2.1 on toolchain 1.90.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 4 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ef6c1ea7af322a670ac58819a68c8431558b3cc8d87fec8b468fc369ae8f35f1
[INFO] running `Command { std: "docker" "start" "-a" "ef6c1ea7af322a670ac58819a68c8431558b3cc8d87fec8b468fc369ae8f35f1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ef6c1ea7af322a670ac58819a68c8431558b3cc8d87fec8b468fc369ae8f35f1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ef6c1ea7af322a670ac58819a68c8431558b3cc8d87fec8b468fc369ae8f35f1", kill_on_drop: false }`
[INFO] [stdout] ef6c1ea7af322a670ac58819a68c8431558b3cc8d87fec8b468fc369ae8f35f1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f5e58c59253305d4ffbea2a040e2592282c88dc9a146db18d1a5002df75ad02a
[INFO] running `Command { std: "docker" "start" "-a" "f5e58c59253305d4ffbea2a040e2592282c88dc9a146db18d1a5002df75ad02a", kill_on_drop: false }`
[INFO] [stderr]    Compiling quote v1.0.41
[INFO] [stderr]    Compiling syn v2.0.106
[INFO] [stderr]    Compiling stability v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: method `attrs` is never used
[INFO] [stdout]   --> src/unstable.rs:94:8
[INFO] [stdout]    |
[INFO] [stdout] 93 | pub(crate) trait ItemLike {
[INFO] [stdout]    |                  -------- method in this trait
[INFO] [stdout] 94 |     fn attrs(&self) -> &[syn::Attribute];
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.68s
[INFO] running `Command { std: "docker" "inspect" "f5e58c59253305d4ffbea2a040e2592282c88dc9a146db18d1a5002df75ad02a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f5e58c59253305d4ffbea2a040e2592282c88dc9a146db18d1a5002df75ad02a", kill_on_drop: false }`
[INFO] [stdout] f5e58c59253305d4ffbea2a040e2592282c88dc9a146db18d1a5002df75ad02a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b12f113558acd156fcfd28a5d938935c08f67aa25f0be193c1ae105b7256a707
[INFO] running `Command { std: "docker" "start" "-a" "b12f113558acd156fcfd28a5d938935c08f67aa25f0be193c1ae105b7256a707", kill_on_drop: false }`
[INFO] [stderr]    Compiling stability v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: method `attrs` is never used
[INFO] [stdout]   --> src/unstable.rs:94:8
[INFO] [stdout]    |
[INFO] [stdout] 93 | pub(crate) trait ItemLike {
[INFO] [stdout]    |                  -------- method in this trait
[INFO] [stdout] 94 |     fn attrs(&self) -> &[syn::Attribute];
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `attrs` is never used
[INFO] [stdout]   --> src/unstable.rs:94:8
[INFO] [stdout]    |
[INFO] [stdout] 93 | pub(crate) trait ItemLike {
[INFO] [stdout]    |                  -------- method in this trait
[INFO] [stdout] 94 |     fn attrs(&self) -> &[syn::Attribute];
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.78s
[INFO] running `Command { std: "docker" "inspect" "b12f113558acd156fcfd28a5d938935c08f67aa25f0be193c1ae105b7256a707", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b12f113558acd156fcfd28a5d938935c08f67aa25f0be193c1ae105b7256a707", kill_on_drop: false }`
[INFO] [stdout] b12f113558acd156fcfd28a5d938935c08f67aa25f0be193c1ae105b7256a707
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 13c9311a0f209be166a22468b53d2ecae23d8fb3f86859a8cfe024b18950cd3a
[INFO] running `Command { std: "docker" "start" "-a" "13c9311a0f209be166a22468b53d2ecae23d8fb3f86859a8cfe024b18950cd3a", kill_on_drop: false }`
[INFO] [stderr] warning: method `attrs` is never used
[INFO] [stderr]   --> src/unstable.rs:94:8
[INFO] [stderr]    |
[INFO] [stderr] 93 | pub(crate) trait ItemLike {
[INFO] [stderr]    |                  -------- method in this trait
[INFO] [stderr] 94 |     fn attrs(&self) -> &[syn::Attribute];
[INFO] [stderr]    |        ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `stability` (lib) generated 1 warning
[INFO] [stderr] warning: `stability` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/stability-6868a5224aed74fb)
[INFO] [stderr]    Doc-tests stability
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test src/lib.rs - unstable (line 87) ... ok
[INFO] [stdout] test src/lib.rs - unstable (line 75) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.28s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "13c9311a0f209be166a22468b53d2ecae23d8fb3f86859a8cfe024b18950cd3a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "13c9311a0f209be166a22468b53d2ecae23d8fb3f86859a8cfe024b18950cd3a", kill_on_drop: false }`
[INFO] [stdout] 13c9311a0f209be166a22468b53d2ecae23d8fb3f86859a8cfe024b18950cd3a