[INFO] fetching crate xlog-rs 0.3.1... [INFO] building xlog-rs-0.3.1 against master#11663cd3bfefef7d34e8f0892c250bf698049392+rustflags=-Dtail-expr-drop-order for pr-134523 [INFO] extracting crate xlog-rs 0.3.1 into /workspace/builds/worker-7-tc1/source [INFO] validating manifest of crates.io crate xlog-rs 0.3.1 on toolchain 11663cd3bfefef7d34e8f0892c250bf698049392 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate xlog-rs 0.3.1 [INFO] finished tweaking crates.io crate xlog-rs 0.3.1 [INFO] tweaked toml for crates.io crate xlog-rs 0.3.1 written to /workspace/builds/worker-7-tc1/source/Cargo.toml [INFO] crate crates.io crate xlog-rs 0.3.1 already has a lockfile, it will not be regenerated [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] e439b40024fecbd130b61f9a308dd844ec795abce03128c3f2771b02c74d007f [INFO] running `Command { std: "docker" "start" "-a" "e439b40024fecbd130b61f9a308dd844ec795abce03128c3f2771b02c74d007f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "e439b40024fecbd130b61f9a308dd844ec795abce03128c3f2771b02c74d007f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e439b40024fecbd130b61f9a308dd844ec795abce03128c3f2771b02c74d007f", kill_on_drop: false }` [INFO] [stdout] e439b40024fecbd130b61f9a308dd844ec795abce03128c3f2771b02c74d007f [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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=forbid -Dtail-expr-drop-order" "-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 7006264fb4980419be53ecbd735635e8eea20cc660ea30afc798f0d2bd1c98fd [INFO] running `Command { std: "docker" "start" "-a" "7006264fb4980419be53ecbd735635e8eea20cc660ea30afc798f0d2bd1c98fd", kill_on_drop: false }` [INFO] [stderr] Compiling xlog-rs v0.3.1 (/opt/rustwide/workdir) [INFO] [stdout] warning: creating a mutable reference to mutable static is discouraged [INFO] [stdout] --> src/log.rs:79:9 [INFO] [stdout] | [INFO] [stdout] 79 | LOGGER.log(args); [INFO] [stdout] | ^^^^^^^^^^^^^^^^ mutable reference to mutable static [INFO] [stdout] | [INFO] [stdout] = note: for more information, see [INFO] [stdout] = note: mutable references to mutable statics are dangerous; it's undefined behavior if any other pointer to the static is used or if any other reference is created for the static while the mutable reference lives [INFO] [stdout] = note: `#[warn(static_mut_refs)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.15s [INFO] running `Command { std: "docker" "inspect" "7006264fb4980419be53ecbd735635e8eea20cc660ea30afc798f0d2bd1c98fd", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "7006264fb4980419be53ecbd735635e8eea20cc660ea30afc798f0d2bd1c98fd", kill_on_drop: false }` [INFO] [stdout] 7006264fb4980419be53ecbd735635e8eea20cc660ea30afc798f0d2bd1c98fd [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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=forbid -Dtail-expr-drop-order" "-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 61be150ff0bc3d78f8ead135a7dac6bc10963ba3b93a106210463b0b1e9b5ede [INFO] running `Command { std: "docker" "start" "-a" "61be150ff0bc3d78f8ead135a7dac6bc10963ba3b93a106210463b0b1e9b5ede", kill_on_drop: false }` [INFO] [stderr] Compiling xlog-rs v0.3.1 (/opt/rustwide/workdir) [INFO] [stdout] warning: creating a mutable reference to mutable static is discouraged [INFO] [stdout] --> src/log.rs:79:9 [INFO] [stdout] | [INFO] [stdout] 79 | LOGGER.log(args); [INFO] [stdout] | ^^^^^^^^^^^^^^^^ mutable reference to mutable static [INFO] [stdout] | [INFO] [stdout] = note: for more information, see [INFO] [stdout] = note: mutable references to mutable statics are dangerous; it's undefined behavior if any other pointer to the static is used or if any other reference is created for the static while the mutable reference lives [INFO] [stdout] = note: `#[warn(static_mut_refs)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: creating a mutable reference to mutable static is discouraged [INFO] [stdout] --> src/log.rs:79:9 [INFO] [stdout] | [INFO] [stdout] 79 | LOGGER.log(args); [INFO] [stdout] | ^^^^^^^^^^^^^^^^ mutable reference to mutable static [INFO] [stdout] | [INFO] [stdout] = note: for more information, see [INFO] [stdout] = note: mutable references to mutable statics are dangerous; it's undefined behavior if any other pointer to the static is used or if any other reference is created for the static while the mutable reference lives [INFO] [stdout] = note: `#[warn(static_mut_refs)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: creating a mutable reference to mutable static is discouraged [INFO] [stdout] --> tests/common/mod.rs:9:30 [INFO] [stdout] | [INFO] [stdout] 9 | unsafe { Cursor::new(LOG_BUF.as_mut().unwrap()) }, [INFO] [stdout] | ^^^^^^^^^^^^^^^^ mutable reference to mutable static [INFO] [stdout] | [INFO] [stdout] = note: for more information, see [INFO] [stdout] = note: mutable references to mutable statics are dangerous; it's undefined behavior if any other pointer to the static is used or if any other reference is created for the static while the mutable reference lives [INFO] [stdout] = note: `#[warn(static_mut_refs)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: creating a mutable reference to mutable static is discouraged [INFO] [stdout] --> tests/common/mod.rs:16:31 [INFO] [stdout] | [INFO] [stdout] 16 | String::from_utf8(LOG_BUF.as_mut().unwrap().clone()) [INFO] [stdout] | ^^^^^^^^^^^^^^^^ mutable reference to mutable static [INFO] [stdout] | [INFO] [stdout] = note: for more information, see [INFO] [stdout] = note: mutable references to mutable statics are dangerous; it's undefined behavior if any other pointer to the static is used or if any other reference is created for the static while the mutable reference lives [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.15s [INFO] running `Command { std: "docker" "inspect" "61be150ff0bc3d78f8ead135a7dac6bc10963ba3b93a106210463b0b1e9b5ede", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "61be150ff0bc3d78f8ead135a7dac6bc10963ba3b93a106210463b0b1e9b5ede", kill_on_drop: false }` [INFO] [stdout] 61be150ff0bc3d78f8ead135a7dac6bc10963ba3b93a106210463b0b1e9b5ede