[INFO] fetching crate stability 0.2.1...
[INFO] testing stability-0.2.1 against try#dec9417b8611e34e787a3e4c37686b5131f9e5c5 for pr-154210-2
[INFO] extracting crate stability 0.2.1 into /workspace/builds/worker-3-tc2/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-3-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate stability 0.2.1 on toolchain dec9417b8611e34e787a3e4c37686b5131f9e5c5
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "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" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "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" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a864f843891c5b616a736948e2a09977c5f2daf4aecc3ab8dc135003db030a45
[INFO] running `Command { std: "docker" "start" "-a" "a864f843891c5b616a736948e2a09977c5f2daf4aecc3ab8dc135003db030a45", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a864f843891c5b616a736948e2a09977c5f2daf4aecc3ab8dc135003db030a45", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a864f843891c5b616a736948e2a09977c5f2daf4aecc3ab8dc135003db030a45", kill_on_drop: false }`
[INFO] [stdout] a864f843891c5b616a736948e2a09977c5f2daf4aecc3ab8dc135003db030a45
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 04ac99989b902beebd7519746b2592860d82c7f9d3fb1342b9b844a89d24a41e
[INFO] running `Command { std: "docker" "start" "-a" "04ac99989b902beebd7519746b2592860d82c7f9d3fb1342b9b844a89d24a41e", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.106
[INFO] [stderr]    Compiling quote v1.0.45
[INFO] [stderr]    Compiling unicode-ident v1.0.24
[INFO] [stderr]    Compiling syn v2.0.117
[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)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.84s
[INFO] running `Command { std: "docker" "inspect" "04ac99989b902beebd7519746b2592860d82c7f9d3fb1342b9b844a89d24a41e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "04ac99989b902beebd7519746b2592860d82c7f9d3fb1342b9b844a89d24a41e", kill_on_drop: false }`
[INFO] [stdout] 04ac99989b902beebd7519746b2592860d82c7f9d3fb1342b9b844a89d24a41e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ffcfd82f6d4fafdb05322a3803ff067a561dcd7ed30536c9138e77de79969a21
[INFO] running `Command { std: "docker" "start" "-a" "ffcfd82f6d4fafdb05322a3803ff067a561dcd7ed30536c9138e77de79969a21", 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)]` (part of `#[warn(unused)]`) 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)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.61s
[INFO] running `Command { std: "docker" "inspect" "ffcfd82f6d4fafdb05322a3803ff067a561dcd7ed30536c9138e77de79969a21", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ffcfd82f6d4fafdb05322a3803ff067a561dcd7ed30536c9138e77de79969a21", kill_on_drop: false }`
[INFO] [stdout] ffcfd82f6d4fafdb05322a3803ff067a561dcd7ed30536c9138e77de79969a21
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 923de33f39f36510b96d0a349faf95f5771211427f15df0955a2cd672ee162b0
[INFO] running `Command { std: "docker" "start" "-a" "923de33f39f36510b96d0a349faf95f5771211427f15df0955a2cd672ee162b0", 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)]` (part of `#[warn(unused)]`) 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 0.04s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/stability-77c751c2df0f2c09)
[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] [stderr]    Doc-tests stability
[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 0.46s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "923de33f39f36510b96d0a349faf95f5771211427f15df0955a2cd672ee162b0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "923de33f39f36510b96d0a349faf95f5771211427f15df0955a2cd672ee162b0", kill_on_drop: false }`
[INFO] [stdout] 923de33f39f36510b96d0a349faf95f5771211427f15df0955a2cd672ee162b0