[INFO] fetching crate hamster_wheel 0.2.1... [INFO] testing hamster_wheel-0.2.1 against beta-2021-01-01 for beta-1.50-1 [INFO] extracting crate hamster_wheel 0.2.1 into /workspace/builds/worker-12/source [INFO] validating manifest of crates.io crate hamster_wheel 0.2.1 on toolchain beta-2021-01-01 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] started tweaking crates.io crate hamster_wheel 0.2.1 [INFO] finished tweaking crates.io crate hamster_wheel 0.2.1 [INFO] tweaked toml for crates.io crate hamster_wheel 0.2.1 written to /workspace/builds/worker-12/source/Cargo.toml [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }` [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded logos-derive v0.10.0 [INFO] [stderr] Downloaded logos v0.10.0 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 237b6b91a8861ebbcafe5cba1d8b15ea81df724f550b90f3aa454f6a879296b0 [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "237b6b91a8861ebbcafe5cba1d8b15ea81df724f550b90f3aa454f6a879296b0", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "237b6b91a8861ebbcafe5cba1d8b15ea81df724f550b90f3aa454f6a879296b0", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "237b6b91a8861ebbcafe5cba1d8b15ea81df724f550b90f3aa454f6a879296b0", kill_on_drop: false }` [INFO] [stdout] 237b6b91a8861ebbcafe5cba1d8b15ea81df724f550b90f3aa454f6a879296b0 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 6924b3379e46d72ea99c1a97fcbac5cee992121ae6223ca5b42e48145325278e [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "6924b3379e46d72ea99c1a97fcbac5cee992121ae6223ca5b42e48145325278e", 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] [stderr] Compiling beef v0.4.4 [INFO] [stderr] Compiling regex v1.4.2 [INFO] [stderr] Compiling bstr v0.2.14 [INFO] [stderr] Compiling logos-derive v0.10.0 [INFO] [stderr] Compiling publicsuffix v1.5.4 [INFO] [stderr] Compiling csv v1.1.5 [INFO] [stderr] Compiling cookie_store v0.7.0 [INFO] [stderr] Compiling reqwest v0.9.24 [INFO] [stderr] Compiling logos v0.10.0 [INFO] [stderr] Compiling hamster_wheel v0.2.1 (/opt/rustwide/workdir) [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/interpreter/importer.rs:53:13 [INFO] [stdout] | [INFO] [stdout] 53 | let mut joined; [INFO] [stdout] | ----^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 34.84s [INFO] running `Command { std: "docker" "inspect" "6924b3379e46d72ea99c1a97fcbac5cee992121ae6223ca5b42e48145325278e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "6924b3379e46d72ea99c1a97fcbac5cee992121ae6223ca5b42e48145325278e", kill_on_drop: false }` [INFO] [stdout] 6924b3379e46d72ea99c1a97fcbac5cee992121ae6223ca5b42e48145325278e [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] ffc87ab6f9be8a5cb098481cda098486cd8ea90cc05a37f37003725af9654ac0 [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "ffc87ab6f9be8a5cb098481cda098486cd8ea90cc05a37f37003725af9654ac0", kill_on_drop: false }` [INFO] [stderr] Compiling hamster_wheel v0.2.1 (/opt/rustwide/workdir) [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/interpreter/importer.rs:53:13 [INFO] [stdout] | [INFO] [stdout] 53 | let mut joined; [INFO] [stdout] | ----^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/interpreter/importer.rs:53:13 [INFO] [stdout] | [INFO] [stdout] 53 | let mut joined; [INFO] [stdout] | ----^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 3.78s [INFO] running `Command { std: "docker" "inspect" "ffc87ab6f9be8a5cb098481cda098486cd8ea90cc05a37f37003725af9654ac0", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "ffc87ab6f9be8a5cb098481cda098486cd8ea90cc05a37f37003725af9654ac0", kill_on_drop: false }` [INFO] [stdout] ffc87ab6f9be8a5cb098481cda098486cd8ea90cc05a37f37003725af9654ac0 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] 7e113d1ad4597c47fe84affe6fba0aadd7272ad893635ff7ff5cdbf16603f234 [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "7e113d1ad4597c47fe84affe6fba0aadd7272ad893635ff7ff5cdbf16603f234", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stdout] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stdout] running 7 tests [INFO] [stderr] --> src/interpreter/importer.rs:53:13 [INFO] [stderr] | [INFO] [stderr] 53 | let mut joined; [INFO] [stderr] | ----^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_mut)]` on by default [INFO] [stderr] [INFO] [stderr] warning: 1 warning emitted [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/interpreter/importer.rs:53:13 [INFO] [stderr] | [INFO] [stderr] 53 | let mut joined; [INFO] [stderr] | ----^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_mut)]` on by default [INFO] [stderr] [INFO] [stderr] warning: 1 warning emitted [INFO] [stderr] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.33s [INFO] [stderr] Running /opt/rustwide/target/debug/deps/hamster_wheel-c83b2931949f1e22 [INFO] [stdout] test tokenizer::tokenizer::tests::multiple_peeks ... ok [INFO] [stderr] Running /opt/rustwide/target/debug/deps/hamster_wheel-edd50456e226acd4 [INFO] [stdout] test tokenizer::tokenizer::tests::peek_after_advance ... ok [INFO] [stdout] test tokenizer::tokenizer::tests::eof_peek ... ok [INFO] [stdout] test tokenizer::tokenizer::tests::two_peeks_after_advance ... ok [INFO] [stdout] test tokenizer::tokenizer::tests::peeks_and_advances ... ok [INFO] [stdout] test tokenizer::tokenizer::tests::peek_preserves_current_info ... ok [INFO] [stdout] test tokenizer::tokenizer::tests::peek_checks_next_token ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 7 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.02s [INFO] [stdout] [INFO] [stderr] Doc-tests hamster_wheel [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 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" "7e113d1ad4597c47fe84affe6fba0aadd7272ad893635ff7ff5cdbf16603f234", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "7e113d1ad4597c47fe84affe6fba0aadd7272ad893635ff7ff5cdbf16603f234", kill_on_drop: false }` [INFO] [stdout] 7e113d1ad4597c47fe84affe6fba0aadd7272ad893635ff7ff5cdbf16603f234