[INFO] fetching crate lsts 0.6.22...
[INFO] testing lsts-0.6.22 against try#ece70b22820429ebf0c6d388c32356a14c58fc2f for pr-107251
[INFO] extracting crate lsts 0.6.22 into /workspace/builds/worker-1-tc2/source
[INFO] validating manifest of crates.io crate lsts 0.6.22 on toolchain ece70b22820429ebf0c6d388c32356a14c58fc2f
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ece70b22820429ebf0c6d388c32356a14c58fc2f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate lsts 0.6.22
[INFO] finished tweaking crates.io crate lsts 0.6.22
[INFO] tweaked toml for crates.io crate lsts 0.6.22 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] crate crates.io crate lsts 0.6.22 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" "+ece70b22820429ebf0c6d388c32356a14c58fc2f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:3d532c2baa59a8a48e45c3be7eb049f77ac5a58a7a6514a58a8e878df1c3d03d" "/opt/rustwide/cargo-home/bin/cargo" "+ece70b22820429ebf0c6d388c32356a14c58fc2f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 46ee10cd61c80e44996b97a28871545ec66bc10f592ed0b4c54a3c95d7818a86
[INFO] running `Command { std: "docker" "start" "-a" "46ee10cd61c80e44996b97a28871545ec66bc10f592ed0b4c54a3c95d7818a86", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "46ee10cd61c80e44996b97a28871545ec66bc10f592ed0b4c54a3c95d7818a86", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "46ee10cd61c80e44996b97a28871545ec66bc10f592ed0b4c54a3c95d7818a86", kill_on_drop: false }`
[INFO] [stdout] 46ee10cd61c80e44996b97a28871545ec66bc10f592ed0b4c54a3c95d7818a86
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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" "-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@sha256:3d532c2baa59a8a48e45c3be7eb049f77ac5a58a7a6514a58a8e878df1c3d03d" "/opt/rustwide/cargo-home/bin/cargo" "+ece70b22820429ebf0c6d388c32356a14c58fc2f" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0a694f6a5f735359fdad19eb80dfb9c89a22fd22b10f609175b658abf63b519f
[INFO] running `Command { std: "docker" "start" "-a" "0a694f6a5f735359fdad19eb80dfb9c89a22fd22b10f609175b658abf63b519f", kill_on_drop: false }`
[INFO] [stderr]    Compiling cranelift-isle v0.85.3
[INFO] [stderr]    Compiling cranelift-codegen-shared v0.85.3
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling target-lexicon v0.12.5
[INFO] [stderr]    Compiling byteorder v1.4.3
[INFO] [stderr]    Compiling cranelift-entity v0.85.3
[INFO] [stderr]    Compiling smallvec v1.10.0
[INFO] [stderr]    Compiling slice-group-by v0.3.0
[INFO] [stderr]    Compiling libc v0.2.137
[INFO] [stderr]    Compiling anyhow v1.0.68
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling bitflags v1.3.2
[INFO] [stderr]    Compiling regex-syntax v0.6.28
[INFO] [stderr]    Compiling cranelift-codegen-meta v0.85.3
[INFO] [stderr]    Compiling fxhash v0.2.1
[INFO] [stderr]    Compiling cranelift-bforest v0.85.3
[INFO] [stderr]    Compiling regalloc2 v0.2.3
[INFO] [stderr]    Compiling aho-corasick v0.7.19
[INFO] [stderr]    Compiling region v2.2.0
[INFO] [stderr]    Compiling regex v1.7.0
[INFO] [stderr]    Compiling cranelift-codegen v0.85.3
[INFO] [stderr]    Compiling cranelift-module v0.85.3
[INFO] [stderr]    Compiling cranelift-frontend v0.85.3
[INFO] [stderr]    Compiling cranelift-native v0.85.3
[INFO] [stderr]    Compiling cranelift-jit v0.85.3
[INFO] [stderr]    Compiling cranelift v0.85.3
[INFO] [stderr]    Compiling l1_ir v0.0.2
[INFO] [stderr]    Compiling lsts v0.6.22 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 19.52s
[INFO] running `Command { std: "docker" "inspect" "0a694f6a5f735359fdad19eb80dfb9c89a22fd22b10f609175b658abf63b519f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0a694f6a5f735359fdad19eb80dfb9c89a22fd22b10f609175b658abf63b519f", kill_on_drop: false }`
[INFO] [stdout] 0a694f6a5f735359fdad19eb80dfb9c89a22fd22b10f609175b658abf63b519f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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" "-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@sha256:3d532c2baa59a8a48e45c3be7eb049f77ac5a58a7a6514a58a8e878df1c3d03d" "/opt/rustwide/cargo-home/bin/cargo" "+ece70b22820429ebf0c6d388c32356a14c58fc2f" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3b1169de118eb67400750f1b1675ffeb46f7a4162d19e8ccb53a4d45d5cd7758
[INFO] running `Command { std: "docker" "start" "-a" "3b1169de118eb67400750f1b1675ffeb46f7a4162d19e8ccb53a4d45d5cd7758", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling serde v1.0.147
[INFO] [stderr]    Compiling crossbeam-utils v0.8.12
[INFO] [stderr]    Compiling proc-macro2 v1.0.47
[INFO] [stderr]    Compiling scopeguard v1.1.0
[INFO] [stderr]    Compiling unicode-ident v1.0.5
[INFO] [stderr]    Compiling quote v1.0.21
[INFO] [stderr]    Compiling rayon-core v1.9.3
[INFO] [stderr]    Compiling syn v1.0.103
[INFO] [stderr]    Compiling serde_json v1.0.87
[INFO] [stderr]    Compiling ryu v1.0.11
[INFO] [stderr]    Compiling either v1.8.0
[INFO] [stderr]    Compiling num_cpus v1.14.0
[INFO] [stderr]    Compiling unicode-width v0.1.10
[INFO] [stderr]    Compiling plotters-backend v0.3.4
[INFO] [stderr]    Compiling regex-automata v0.1.10
[INFO] [stderr]    Compiling itoa v1.0.4
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling serde_derive v1.0.147
[INFO] [stderr]    Compiling itertools v0.10.5
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling csv-core v0.1.10
[INFO] [stderr]    Compiling plotters-svg v0.3.3
[INFO] [stderr]    Compiling half v1.8.2
[INFO] [stderr]    Compiling same-file v1.0.6
[INFO] [stderr]    Compiling itoa v0.4.8
[INFO] [stderr]    Compiling cast v0.3.0
[INFO] [stderr]    Compiling walkdir v2.3.2
[INFO] [stderr]    Compiling clap v2.34.0
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling oorandom v11.1.3
[INFO] [stderr]    Compiling memoffset v0.6.5
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.11
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling rayon v1.5.3
[INFO] [stderr]    Compiling crossbeam-channel v0.5.6
[INFO] [stderr]    Compiling crossbeam-deque v0.8.2
[INFO] [stderr]    Compiling criterion-plot v0.4.5
[INFO] [stderr]    Compiling plotters v0.3.4
[INFO] [stderr]    Compiling bstr v0.2.17
[INFO] [stderr]    Compiling serde_cbor v0.11.2
[INFO] [stderr]    Compiling csv v1.1.6
[INFO] [stderr]    Compiling tinytemplate v1.2.1
[INFO] [stderr]    Compiling criterion v0.3.6
[INFO] [stderr]    Compiling lsts v0.6.22 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `lsts::tlc::TLC`
[INFO] [stdout]  --> tests/examples.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use lsts::tlc::TLC;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `lsts::constant::Constant`
[INFO] [stdout]  --> tests/examples.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use lsts::constant::Constant;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `lsts`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name lsts --edition=2018 src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --emit=dep-info,link -C embed-bitcode=no -C debuginfo=2 --test -C metadata=29b068fcc18e9ff3 -C extra-filename=-29b068fcc18e9ff3 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern criterion=/opt/rustwide/target/debug/deps/libcriterion-6c82a9a4db53d373.rlib --extern l1_ir=/opt/rustwide/target/debug/deps/libl1_ir-2ff46a64b6edd9e4.rlib --extern regex=/opt/rustwide/target/debug/deps/libregex-4fc7fb58938da5cb.rlib --cap-lints=forbid` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "3b1169de118eb67400750f1b1675ffeb46f7a4162d19e8ccb53a4d45d5cd7758", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3b1169de118eb67400750f1b1675ffeb46f7a4162d19e8ccb53a4d45d5cd7758", kill_on_drop: false }`
[INFO] [stdout] 3b1169de118eb67400750f1b1675ffeb46f7a4162d19e8ccb53a4d45d5cd7758