[INFO] fetching crate twiggy-traits 0.7.0... [INFO] testing twiggy-traits-0.7.0 against master#62efba8a050c64249dab942951bb28f710208bc8 for pr-90799 [INFO] extracting crate twiggy-traits 0.7.0 into /workspace/builds/worker-106/source [INFO] validating manifest of crates.io crate twiggy-traits 0.7.0 on toolchain 62efba8a050c64249dab942951bb28f710208bc8 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate twiggy-traits 0.7.0 [INFO] finished tweaking crates.io crate twiggy-traits 0.7.0 [INFO] tweaked toml for crates.io crate twiggy-traits 0.7.0 written to /workspace/builds/worker-106/source/Cargo.toml [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "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-106/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-106/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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] fc536ab2fddaabc8a199f52a88da289ce4b0334658bb31b4c1462d9c42ed2477 [INFO] running `Command { std: "docker" "start" "-a" "fc536ab2fddaabc8a199f52a88da289ce4b0334658bb31b4c1462d9c42ed2477", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "fc536ab2fddaabc8a199f52a88da289ce4b0334658bb31b4c1462d9c42ed2477", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "fc536ab2fddaabc8a199f52a88da289ce4b0334658bb31b4c1462d9c42ed2477", kill_on_drop: false }` [INFO] [stdout] fc536ab2fddaabc8a199f52a88da289ce4b0334658bb31b4c1462d9c42ed2477 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-106/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-106/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" "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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] b40347376f13e680db4bd3426e0d152d4a5f6163528d6de436d2d9f41421f17a [INFO] running `Command { std: "docker" "start" "-a" "b40347376f13e680db4bd3426e0d152d4a5f6163528d6de436d2d9f41421f17a", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Compiling memchr v2.4.1 [INFO] [stderr] Compiling syn v1.0.82 [INFO] [stderr] Compiling libc v0.2.108 [INFO] [stderr] Compiling cc v1.0.72 [INFO] [stderr] Compiling hashbrown v0.11.2 [INFO] [stderr] Compiling failure_derive v0.1.8 [INFO] [stderr] Compiling ryu v1.0.6 [INFO] [stderr] Compiling cpp_demangle v0.3.5 [INFO] [stderr] Compiling fixedbitset v0.4.0 [INFO] [stderr] Compiling regex-automata v0.1.10 [INFO] [stderr] Compiling frozen v1.0.0 [INFO] [stderr] Compiling itoa v0.4.8 [INFO] [stderr] Compiling wasmparser v0.35.3 [INFO] [stderr] Compiling indexmap v1.7.0 [INFO] [stderr] Compiling object v0.27.1 [INFO] [stderr] Compiling csv-core v0.1.10 [INFO] [stderr] Compiling aho-corasick v0.7.18 [INFO] [stderr] Compiling bstr v0.2.17 [INFO] [stderr] Compiling petgraph v0.6.0 [INFO] [stderr] Compiling csv v1.1.6 [INFO] [stderr] Compiling backtrace v0.3.63 [INFO] [stderr] Compiling regex v1.5.4 [INFO] [stderr] Compiling synstructure v0.12.6 [INFO] [stderr] Compiling serde_derive v1.0.130 [INFO] [stderr] Compiling failure v0.1.8 [INFO] [stderr] Compiling twiggy-ir v0.7.0 [INFO] [stderr] Compiling twiggy-traits v0.7.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused variable: `items` [INFO] [stdout] --> traits.rs:224:9 [INFO] [stdout] | [INFO] [stdout] 224 | items: &ir::Items, [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_items` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `destination` [INFO] [stdout] --> traits.rs:225:9 [INFO] [stdout] | [INFO] [stdout] 225 | destination: &mut dyn io::Write, [INFO] [stdout] | ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_destination` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 13.91s [INFO] running `Command { std: "docker" "inspect" "b40347376f13e680db4bd3426e0d152d4a5f6163528d6de436d2d9f41421f17a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "b40347376f13e680db4bd3426e0d152d4a5f6163528d6de436d2d9f41421f17a", kill_on_drop: false }` [INFO] [stdout] b40347376f13e680db4bd3426e0d152d4a5f6163528d6de436d2d9f41421f17a [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-106/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-106/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" "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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] d5f09edb1abe1f05e7bd7eea9dcbcc9388698357885aa3f13aa55ce6ea2e5cd9 [INFO] running `Command { std: "docker" "start" "-a" "d5f09edb1abe1f05e7bd7eea9dcbcc9388698357885aa3f13aa55ce6ea2e5cd9", kill_on_drop: false }` [INFO] [stdout] warning: unused variable: `items` [INFO] [stdout] --> traits.rs:224:9 [INFO] [stdout] | [INFO] [stdout] 224 | items: &ir::Items, [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_items` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling twiggy-traits v0.7.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused variable: `destination` [INFO] [stdout] --> traits.rs:225:9 [INFO] [stdout] | [INFO] [stdout] 225 | destination: &mut dyn io::Write, [INFO] [stdout] | ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_destination` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `items` [INFO] [stdout] --> traits.rs:224:9 [INFO] [stdout] | [INFO] [stdout] 224 | items: &ir::Items, [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_items` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `destination` [INFO] [stdout] --> traits.rs:225:9 [INFO] [stdout] | [INFO] [stdout] 225 | destination: &mut dyn io::Write, [INFO] [stdout] | ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_destination` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 1.20s [INFO] running `Command { std: "docker" "inspect" "d5f09edb1abe1f05e7bd7eea9dcbcc9388698357885aa3f13aa55ce6ea2e5cd9", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "d5f09edb1abe1f05e7bd7eea9dcbcc9388698357885aa3f13aa55ce6ea2e5cd9", kill_on_drop: false }` [INFO] [stdout] d5f09edb1abe1f05e7bd7eea9dcbcc9388698357885aa3f13aa55ce6ea2e5cd9 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-106/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-106/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" "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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] 8979dc9d84f4be34885162fded2e3576f01e16e348083958c46a9a2656e80ba6 [INFO] running `Command { std: "docker" "start" "-a" "8979dc9d84f4be34885162fded2e3576f01e16e348083958c46a9a2656e80ba6", kill_on_drop: false }` [INFO] [stderr] warning: unused variable: `items` [INFO] [stderr] --> traits.rs:224:9 [INFO] [stderr] | [INFO] [stderr] 224 | items: &ir::Items, [INFO] [stderr] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_items` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `destination` [INFO] [stderr] --> traits.rs:225:9 [INFO] [stderr] | [INFO] [stderr] 225 | destination: &mut dyn io::Write, [INFO] [stderr] | ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_destination` [INFO] [stderr] [INFO] [stderr] warning: `twiggy-traits` (lib) generated 2 warnings [INFO] [stderr] warning: `twiggy-traits` (lib test) generated 2 warnings (2 duplicates) [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.05s [INFO] [stderr] Running unittests (/opt/rustwide/target/debug/deps/twiggy_traits-689913f6cbd9e442) [INFO] [stdout] [INFO] [stdout] running 1 test [INFO] [stdout] test size_of_error_is_one_word ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] [stderr] Doc-tests twiggy-traits [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] running `Command { std: "docker" "inspect" "8979dc9d84f4be34885162fded2e3576f01e16e348083958c46a9a2656e80ba6", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "8979dc9d84f4be34885162fded2e3576f01e16e348083958c46a9a2656e80ba6", kill_on_drop: false }` [INFO] [stdout] 8979dc9d84f4be34885162fded2e3576f01e16e348083958c46a9a2656e80ba6