[INFO] fetching crate tracking-allocator 0.4.0... [INFO] checking tracking-allocator-0.4.0 against try#c387b04bf028733cd561d62128c8a5eee4bc1458+rustflags=-Dtail_expr_drop_order for pr-130930 [INFO] extracting crate tracking-allocator 0.4.0 into /workspace/builds/worker-2-tc2/source [INFO] validating manifest of crates.io crate tracking-allocator 0.4.0 on toolchain c387b04bf028733cd561d62128c8a5eee4bc1458 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate tracking-allocator 0.4.0 [INFO] removed 0 missing examples [INFO] finished tweaking crates.io crate tracking-allocator 0.4.0 [INFO] tweaked toml for crates.io crate tracking-allocator 0.4.0 written to /workspace/builds/worker-2-tc2/source/Cargo.toml [INFO] crate crates.io crate tracking-allocator 0.4.0 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" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:6252d7ea7fb8caaf7af6d800c5fb250a9cd862b9a7f9508afb3c54fa7fe1102e" "/opt/rustwide/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 538b5db263121fba5ac0e55e77a647da3563118735cbdc94a2235422ce0dfc87 [INFO] running `Command { std: "docker" "start" "-a" "538b5db263121fba5ac0e55e77a647da3563118735cbdc94a2235422ce0dfc87", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "538b5db263121fba5ac0e55e77a647da3563118735cbdc94a2235422ce0dfc87", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "538b5db263121fba5ac0e55e77a647da3563118735cbdc94a2235422ce0dfc87", kill_on_drop: false }` [INFO] [stdout] 538b5db263121fba5ac0e55e77a647da3563118735cbdc94a2235422ce0dfc87 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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 -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@sha256:6252d7ea7fb8caaf7af6d800c5fb250a9cd862b9a7f9508afb3c54fa7fe1102e" "/opt/rustwide/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] c2bbccd786e6bbbd202f1ee84a63f5002fa83ca3e5798f0d5f9aa33f01fcabae [INFO] running `Command { std: "docker" "start" "-a" "c2bbccd786e6bbbd202f1ee84a63f5002fa83ca3e5798f0d5f9aa33f01fcabae", kill_on_drop: false }` [INFO] [stderr] Compiling crossbeam-utils v0.8.5 [INFO] [stderr] Compiling serde v1.0.130 [INFO] [stderr] Compiling semver v1.0.4 [INFO] [stderr] Compiling memoffset v0.6.4 [INFO] [stderr] Compiling libc v0.2.103 [INFO] [stderr] Compiling crossbeam-epoch v0.9.5 [INFO] [stderr] Compiling proc-macro2 v1.0.29 [INFO] [stderr] Compiling memchr v2.4.1 [INFO] [stderr] Compiling ryu v1.0.5 [INFO] [stderr] Compiling rayon-core v1.9.1 [INFO] [stderr] Compiling unicode-xid v0.2.2 [INFO] [stderr] Checking scopeguard v1.1.0 [INFO] [stderr] Compiling num-traits v0.2.14 [INFO] [stderr] Checking either v1.6.1 [INFO] [stderr] Compiling serde_json v1.0.68 [INFO] [stderr] Checking itoa v0.4.8 [INFO] [stderr] Compiling syn v1.0.78 [INFO] [stderr] Checking tracing-core v0.1.21 [INFO] [stderr] Compiling rayon v1.5.1 [INFO] [stderr] Checking regex-automata v0.1.10 [INFO] [stderr] Checking pin-project-lite v0.2.7 [INFO] [stderr] Checking crossbeam-channel v0.5.1 [INFO] [stderr] Checking once_cell v1.8.0 [INFO] [stderr] Checking plotters-backend v0.3.2 [INFO] [stderr] Compiling serde_derive v1.0.130 [INFO] [stderr] Checking itertools v0.10.1 [INFO] [stderr] Checking sharded-slab v0.1.3 [INFO] [stderr] Compiling tokio v1.12.0 [INFO] [stderr] Checking regex-syntax v0.6.25 [INFO] [stderr] Compiling rustc_version v0.4.0 [INFO] [stderr] Checking plotters-svg v0.3.1 [INFO] [stderr] Checking thread_local v1.1.4 [INFO] [stderr] Checking crossbeam-deque v0.8.1 [INFO] [stderr] Checking half v1.7.1 [INFO] [stderr] Checking clap v2.33.3 [INFO] [stderr] Checking num_cpus v1.13.0 [INFO] [stderr] Checking atty v0.2.14 [INFO] [stderr] Checking walkdir v2.3.2 [INFO] [stderr] Checking tracing v0.1.28 [INFO] [stderr] Checking oorandom v11.1.3 [INFO] [stderr] Checking csv-core v0.1.10 [INFO] [stderr] Compiling cast v0.2.7 [INFO] [stderr] Compiling quote v1.0.9 [INFO] [stderr] Checking tracing-subscriber v0.3.7 [INFO] [stderr] Checking plotters v0.3.1 [INFO] [stderr] Checking tracking-allocator v0.4.0 (/opt/rustwide/workdir) [INFO] [stderr] Checking regex v1.5.4 [INFO] [stdout] warning: creating a shared reference to mutable static is discouraged [INFO] [stdout] --> src/lib.rs:270:23 [INFO] [stdout] | [INFO] [stdout] 270 | let tracker = GLOBAL_TRACKER [INFO] [stdout] | _______________________^ [INFO] [stdout] 271 | | .as_ref() [INFO] [stdout] | |_____________________^ shared reference to mutable static [INFO] [stdout] | [INFO] [stdout] = note: for more information, see [INFO] [stdout] = note: shared references to mutable statics are dangerous; it's undefined behavior if the static is mutated or if a mutable reference is created for it while the shared reference lives [INFO] [stdout] = note: `#[warn(static_mut_refs)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking criterion-plot v0.4.4 [INFO] [stderr] Checking bstr v0.2.17 [INFO] [stderr] Checking serde_cbor v0.11.2 [INFO] [stderr] Checking csv v1.1.6 [INFO] [stderr] Checking tinytemplate v1.2.1 [INFO] [stderr] Checking criterion v0.3.5 [INFO] [stdout] warning: creating a shared reference to mutable static is discouraged [INFO] [stdout] --> src/lib.rs:270:23 [INFO] [stdout] | [INFO] [stdout] 270 | let tracker = GLOBAL_TRACKER [INFO] [stdout] | _______________________^ [INFO] [stdout] 271 | | .as_ref() [INFO] [stdout] | |_____________________^ shared reference to mutable static [INFO] [stdout] | [INFO] [stdout] = note: for more information, see [INFO] [stdout] = note: shared references to mutable statics are dangerous; it's undefined behavior if the static is mutated or if a mutable reference is created for it while the shared reference lives [INFO] [stdout] = note: `#[warn(static_mut_refs)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 13.81s [INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: criterion v0.3.5 [INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 3` [INFO] running `Command { std: "docker" "inspect" "c2bbccd786e6bbbd202f1ee84a63f5002fa83ca3e5798f0d5f9aa33f01fcabae", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "c2bbccd786e6bbbd202f1ee84a63f5002fa83ca3e5798f0d5f9aa33f01fcabae", kill_on_drop: false }` [INFO] [stdout] c2bbccd786e6bbbd202f1ee84a63f5002fa83ca3e5798f0d5f9aa33f01fcabae