[INFO] fetching crate twiggy-traits 0.7.0... [INFO] testing twiggy-traits-0.7.0 against 1.55.0 for beta-1.56-1 [INFO] extracting crate twiggy-traits 0.7.0 into /workspace/builds/worker-28/source [INFO] validating manifest of crates.io crate twiggy-traits 0.7.0 on toolchain 1.55.0 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "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-28/source/Cargo.toml [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "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" "+1.55.0" "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-28/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 834b6dbd73669863846bf1cf1de053916c6558da610c325de44eccf997a0ebf0 [INFO] running `Command { std: "docker" "start" "-a" "834b6dbd73669863846bf1cf1de053916c6558da610c325de44eccf997a0ebf0", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "834b6dbd73669863846bf1cf1de053916c6558da610c325de44eccf997a0ebf0", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "834b6dbd73669863846bf1cf1de053916c6558da610c325de44eccf997a0ebf0", kill_on_drop: false }` [INFO] [stdout] 834b6dbd73669863846bf1cf1de053916c6558da610c325de44eccf997a0ebf0 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/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" "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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] a8fa4ff9f3ab0834dc300814960b7b4390d1affdae93d0d7d7a0f3ece8c4cc5a [INFO] running `Command { std: "docker" "start" "-a" "a8fa4ff9f3ab0834dc300814960b7b4390d1affdae93d0d7d7a0f3ece8c4cc5a", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Compiling memchr v2.4.1 [INFO] [stderr] Compiling autocfg v1.0.1 [INFO] [stderr] Compiling proc-macro2 v1.0.29 [INFO] [stderr] Compiling unicode-xid v0.2.2 [INFO] [stderr] Compiling syn v1.0.76 [INFO] [stderr] Compiling serde v1.0.130 [INFO] [stderr] Compiling cc v1.0.70 [INFO] [stderr] Compiling libc v0.2.101 [INFO] [stderr] Compiling cfg-if v1.0.0 [INFO] [stderr] Compiling ryu v1.0.5 [INFO] [stderr] Compiling failure_derive v0.1.8 [INFO] [stderr] Compiling serde_derive v1.0.130 [INFO] [stderr] Compiling rustc-demangle v0.1.21 [INFO] [stderr] Compiling gimli v0.25.0 [INFO] [stderr] Compiling cpp_demangle v0.3.3 [INFO] [stderr] Compiling hashbrown v0.11.2 [INFO] [stderr] Compiling adler v1.0.2 [INFO] [stderr] Compiling regex-automata v0.1.10 [INFO] [stderr] Compiling lazy_static v1.4.0 [INFO] [stderr] Compiling fixedbitset v0.4.0 [INFO] [stderr] Compiling itoa v0.4.8 [INFO] [stderr] Compiling frozen v1.0.0 [INFO] [stderr] Compiling regex-syntax v0.6.25 [INFO] [stderr] Compiling wasmparser v0.35.3 [INFO] [stderr] Compiling miniz_oxide v0.4.4 [INFO] [stderr] Compiling indexmap v1.7.0 [INFO] [stderr] Compiling backtrace v0.3.61 [INFO] [stderr] Compiling object v0.26.2 [INFO] [stderr] Compiling aho-corasick v0.7.18 [INFO] [stderr] Compiling csv-core v0.1.10 [INFO] [stderr] Compiling addr2line v0.16.0 [INFO] [stderr] Compiling bstr v0.2.16 [INFO] [stderr] Compiling quote v1.0.9 [INFO] [stderr] Compiling petgraph v0.6.0 [INFO] [stderr] Compiling regex v1.5.4 [INFO] [stderr] Compiling csv v1.1.6 [INFO] [stderr] Compiling synstructure v0.12.5 [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 46.11s [INFO] running `Command { std: "docker" "inspect" "a8fa4ff9f3ab0834dc300814960b7b4390d1affdae93d0d7d7a0f3ece8c4cc5a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a8fa4ff9f3ab0834dc300814960b7b4390d1affdae93d0d7d7a0f3ece8c4cc5a", kill_on_drop: false }` [INFO] [stdout] a8fa4ff9f3ab0834dc300814960b7b4390d1affdae93d0d7d7a0f3ece8c4cc5a [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/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" "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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 528e72d0cc2967a8895f99448acf55790ce040d29971128224cfb6dc896a6e26 [INFO] running `Command { std: "docker" "start" "-a" "528e72d0cc2967a8895f99448acf55790ce040d29971128224cfb6dc896a6e26", kill_on_drop: false }` [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] [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 1.55s [INFO] running `Command { std: "docker" "inspect" "528e72d0cc2967a8895f99448acf55790ce040d29971128224cfb6dc896a6e26", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "528e72d0cc2967a8895f99448acf55790ce040d29971128224cfb6dc896a6e26", kill_on_drop: false }` [INFO] [stdout] 528e72d0cc2967a8895f99448acf55790ce040d29971128224cfb6dc896a6e26 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/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" "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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] 6afb2058a346e05c2584fe3365973e7da8b97a1d2b039f3ddfdfe7e665dc0f08 [INFO] running `Command { std: "docker" "start" "-a" "6afb2058a346e05c2584fe3365973e7da8b97a1d2b039f3ddfdfe7e665dc0f08", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [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 0.10s [INFO] [stderr] Running unittests (/opt/rustwide/target/debug/deps/twiggy_traits-614ee7074cbe2dd8) [INFO] [stdout] [INFO] [stdout] running 1 test [INFO] [stderr] Doc-tests twiggy-traits [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] [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" "6afb2058a346e05c2584fe3365973e7da8b97a1d2b039f3ddfdfe7e665dc0f08", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "6afb2058a346e05c2584fe3365973e7da8b97a1d2b039f3ddfdfe7e665dc0f08", kill_on_drop: false }` [INFO] [stdout] 6afb2058a346e05c2584fe3365973e7da8b97a1d2b039f3ddfdfe7e665dc0f08