[INFO] fetching crate isla 0.2.0...
[INFO] checking isla-0.2.0 against try#c387b04bf028733cd561d62128c8a5eee4bc1458+rustflags=-Dtail_expr_drop_order for pr-130930
[INFO] extracting crate isla 0.2.0 into /workspace/builds/worker-7-tc2/source
[INFO] validating manifest of crates.io crate isla 0.2.0 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 isla 0.2.0
[INFO] finished tweaking crates.io crate isla 0.2.0
[INFO] tweaked toml for crates.io crate isla 0.2.0 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] crate crates.io crate isla 0.2.0 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-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] d7c7a05b7c94df52f788a36191cf648b9ca53d05f450a8f5846c0730ee4c707f
[INFO] running `Command { std: "docker" "start" "-a" "d7c7a05b7c94df52f788a36191cf648b9ca53d05f450a8f5846c0730ee4c707f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d7c7a05b7c94df52f788a36191cf648b9ca53d05f450a8f5846c0730ee4c707f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d7c7a05b7c94df52f788a36191cf648b9ca53d05f450a8f5846c0730ee4c707f", kill_on_drop: false }`
[INFO] [stdout] d7c7a05b7c94df52f788a36191cf648b9ca53d05f450a8f5846c0730ee4c707f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 384920c44be21391f3f4e80125429904483b9f8fa79666ce96033bbc4e640cf9
[INFO] running `Command { std: "docker" "start" "-a" "384920c44be21391f3f4e80125429904483b9f8fa79666ce96033bbc4e640cf9", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.86
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling indexmap v1.6.1
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling once_cell v1.7.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling crunchy v0.2.2
[INFO] [stderr]    Compiling hashbrown v0.9.1
[INFO] [stderr]    Compiling siphasher v0.3.3
[INFO] [stderr]    Compiling tiny-keccak v2.0.2
[INFO] [stderr]    Compiling regex-syntax v0.6.22
[INFO] [stderr]    Compiling precomputed-hash v0.1.1
[INFO] [stderr]    Compiling new_debug_unreachable v1.0.4
[INFO] [stderr]    Compiling syn v1.0.60
[INFO] [stderr]    Compiling fixedbitset v0.2.0
[INFO] [stderr]    Compiling bit-vec v0.6.3
[INFO] [stderr]    Compiling either v1.6.1
[INFO] [stderr]    Compiling thread_local v1.1.3
[INFO] [stderr]    Compiling phf_shared v0.8.0
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling bit-set v0.5.2
[INFO] [stderr]    Compiling diff v0.1.12
[INFO] [stderr]    Compiling ena v0.14.0
[INFO] [stderr]    Compiling string_cache v0.8.1
[INFO] [stderr]    Compiling itertools v0.9.0
[INFO] [stderr]    Compiling pico-args v0.3.4
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling typenum v1.12.0
[INFO] [stderr]    Compiling memoffset v0.5.6
[INFO] [stderr]    Compiling serde_derive v1.0.123
[INFO] [stderr]    Compiling crossbeam-epoch v0.8.2
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling serde v1.0.123
[INFO] [stderr]    Compiling petgraph v0.5.1
[INFO] [stderr]     Checking aho-corasick v0.7.15
[INFO] [stderr]    Compiling dirs v1.0.5
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]     Checking byte-tools v0.3.1
[INFO] [stderr]     Checking getrandom v0.1.16
[INFO] [stderr]    Compiling term v0.5.2
[INFO] [stderr]     Checking fake-simd v0.1.2
[INFO] [stderr]     Checking block-padding v0.1.5
[INFO] [stderr]     Checking crossbeam-queue v0.2.3
[INFO] [stderr]     Checking crossbeam-channel v0.4.4
[INFO] [stderr]     Checking opaque-debug v0.2.3
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking ppv-lite86 v0.2.10
[INFO] [stderr]     Checking crossbeam-deque v0.7.3
[INFO] [stderr]     Checking plain v0.2.3
[INFO] [stderr]     Checking z3-sys v0.5.0
[INFO] [stderr]     Checking unicode-width v0.1.8
[INFO] [stderr]    Compiling isla v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling ascii-canvas v2.0.0
[INFO] [stderr]     Checking getopts v0.2.21
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]    Compiling regex v1.4.3
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking crossbeam v0.7.3
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking generic-array v0.12.3
[INFO] [stderr]     Checking block-buffer v0.7.3
[INFO] [stderr]     Checking digest v0.8.1
[INFO] [stderr]     Checking sha2 v0.8.2
[INFO] [stderr]    Compiling lalrpop-util v0.19.4
[INFO] [stderr]    Compiling lalrpop v0.19.4
[INFO] [stderr]    Compiling scroll_derive v0.10.5
[INFO] [stderr]     Checking scroll v0.10.2
[INFO] [stderr]     Checking goblin v0.2.3
[INFO] [stderr]     Checking bincode v1.3.2
[INFO] [stderr]     Checking toml v0.5.8
[INFO] [stderr]    Compiling isla-lib v0.2.0
[INFO] [stderr]    Compiling isla-cat v0.2.0
[INFO] [stderr]    Compiling isla-axiomatic v0.2.0
[INFO] [stdout] warning: fields `num_threads` and `isa_config` are never read
[INFO] [stdout]    --> src/opts.rs:104:9
[INFO] [stdout]     |
[INFO] [stdout] 103 | pub struct CommonOpts<'ir, B> {
[INFO] [stdout]     |            ---------- fields in this struct
[INFO] [stdout] 104 |     pub num_threads: usize,
[INFO] [stdout]     |         ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 107 |     pub isa_config: ISAConfig<B>,
[INFO] [stdout]     |         ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `num_threads` and `isa_config` are never read
[INFO] [stdout]    --> src/opts.rs:104:9
[INFO] [stdout]     |
[INFO] [stdout] 103 | pub struct CommonOpts<'ir, B> {
[INFO] [stdout]     |            ---------- fields in this struct
[INFO] [stdout] 104 |     pub num_threads: usize,
[INFO] [stdout]     |         ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 107 |     pub isa_config: ISAConfig<B>,
[INFO] [stdout]     |         ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` 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 20.29s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: lalrpop v0.19.4
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 2`
[INFO] running `Command { std: "docker" "inspect" "384920c44be21391f3f4e80125429904483b9f8fa79666ce96033bbc4e640cf9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "384920c44be21391f3f4e80125429904483b9f8fa79666ce96033bbc4e640cf9", kill_on_drop: false }`
[INFO] [stdout] 384920c44be21391f3f4e80125429904483b9f8fa79666ce96033bbc4e640cf9