[INFO] fetching crate espr 0.3.0...
[INFO] testing espr-0.3.0 against try#fc4ba03ef77ca5018fb78a097d3b924d30f15bfc+target=i686-unknown-linux-musl for musl_upgrade_1_2_take4
[INFO] extracting crate espr 0.3.0 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate espr 0.3.0 on toolchain fc4ba03ef77ca5018fb78a097d3b924d30f15bfc
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+fc4ba03ef77ca5018fb78a097d3b924d30f15bfc" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate espr 0.3.0
[INFO] finished tweaking crates.io crate espr 0.3.0
[INFO] tweaked toml for crates.io crate espr 0.3.0 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate crates.io crate espr 0.3.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+fc4ba03ef77ca5018fb78a097d3b924d30f15bfc" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded insta v1.14.1
[INFO] [stderr]   Downloaded katexit v0.1.2
[INFO] [stderr]   Downloaded check_keyword v0.1.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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:bb5b0feb4f87116a4ea905b7ff5bf5b85913db05e9f0fbc1abdd3168928d9075" "/opt/rustwide/cargo-home/bin/cargo" "+fc4ba03ef77ca5018fb78a097d3b924d30f15bfc" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1a6d31b0217c819978021ce2ad5ea207fddba6db309bcf877d88034873aaf190
[INFO] running `Command { std: "docker" "start" "-a" "1a6d31b0217c819978021ce2ad5ea207fddba6db309bcf877d88034873aaf190", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1a6d31b0217c819978021ce2ad5ea207fddba6db309bcf877d88034873aaf190", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1a6d31b0217c819978021ce2ad5ea207fddba6db309bcf877d88034873aaf190", kill_on_drop: false }`
[INFO] [stdout] 1a6d31b0217c819978021ce2ad5ea207fddba6db309bcf877d88034873aaf190
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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:bb5b0feb4f87116a4ea905b7ff5bf5b85913db05e9f0fbc1abdd3168928d9075" "/opt/rustwide/cargo-home/bin/cargo" "+fc4ba03ef77ca5018fb78a097d3b924d30f15bfc" "build" "--frozen" "--message-format=json" "--target" "i686-unknown-linux-musl", kill_on_drop: false }`
[INFO] [stdout] 89dd32e907d5fb685344197f8a590086ea6f9b6b4b268c02ef8ae50f5582a7ed
[INFO] running `Command { std: "docker" "start" "-a" "89dd32e907d5fb685344197f8a590086ea6f9b6b4b268c02ef8ae50f5582a7ed", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.39
[INFO] [stderr]    Compiling unicode-ident v1.0.1
[INFO] [stderr]    Compiling syn v1.0.96
[INFO] [stderr]    Compiling version_check v0.9.4
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling libc v0.2.126
[INFO] [stderr]    Compiling unicode-segmentation v1.9.0
[INFO] [stderr]    Compiling unicode-width v0.1.9
[INFO] [stderr]    Compiling ansi_term v0.12.1
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling aho-corasick v0.7.18
[INFO] [stderr]    Compiling strsim v0.8.0
[INFO] [stderr]    Compiling vec_map v0.8.2
[INFO] [stderr]    Compiling regex-syntax v0.6.26
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling quote v1.0.18
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling bitflags v1.3.2
[INFO] [stderr]    Compiling clap v2.34.0
[INFO] [stderr]    Compiling either v1.6.1
[INFO] [stderr]    Compiling convert_case v0.4.0
[INFO] [stderr]    Compiling minimal-lexical v0.2.1
[INFO] [stderr]    Compiling itertools v0.10.3
[INFO] [stderr]    Compiling nom v7.1.1
[INFO] [stderr]    Compiling check_keyword v0.1.1
[INFO] [stderr]    Compiling maplit v1.0.2
[INFO] [stderr]    Compiling regex v1.5.6
[INFO] [stderr]    Compiling Inflector v0.11.4
[INFO] [stderr]    Compiling structopt-derive v0.4.18
[INFO] [stderr]    Compiling thiserror-impl v1.0.31
[INFO] [stderr]    Compiling derive_more v0.99.17
[INFO] [stderr]    Compiling katexit v0.1.2
[INFO] [stderr]    Compiling structopt v0.3.26
[INFO] [stderr]    Compiling thiserror v1.0.31
[INFO] [stderr]    Compiling espr v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 28.97s
[INFO] running `Command { std: "docker" "inspect" "89dd32e907d5fb685344197f8a590086ea6f9b6b4b268c02ef8ae50f5582a7ed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "89dd32e907d5fb685344197f8a590086ea6f9b6b4b268c02ef8ae50f5582a7ed", kill_on_drop: false }`
[INFO] [stdout] 89dd32e907d5fb685344197f8a590086ea6f9b6b4b268c02ef8ae50f5582a7ed
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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:bb5b0feb4f87116a4ea905b7ff5bf5b85913db05e9f0fbc1abdd3168928d9075" "/opt/rustwide/cargo-home/bin/cargo" "+fc4ba03ef77ca5018fb78a097d3b924d30f15bfc" "test" "--frozen" "--no-run" "--message-format=json" "--target" "i686-unknown-linux-musl", kill_on_drop: false }`
[INFO] [stdout] 880f4f80757194e43bcd5ba05e4f28f7fb568b21a02f9be00c8401ec5574c5a3
[INFO] running `Command { std: "docker" "start" "-a" "880f4f80757194e43bcd5ba05e4f28f7fb568b21a02f9be00c8401ec5574c5a3", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.126
[INFO] [stderr]    Compiling serde_derive v1.0.137
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling serde v1.0.137
[INFO] [stderr]    Compiling serde_json v1.0.81
[INFO] [stderr]    Compiling hashbrown v0.11.2
[INFO] [stderr]    Compiling linked-hash-map v0.5.4
[INFO] [stderr]    Compiling ryu v1.0.10
[INFO] [stderr]    Compiling yaml-rust v0.4.5
[INFO] [stderr]    Compiling itoa v1.0.2
[INFO] [stderr]    Compiling once_cell v1.12.0
[INFO] [stderr]    Compiling similar v2.1.0
[INFO] [stderr]    Compiling indexmap v1.8.2
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling terminal_size v0.1.17
[INFO] [stderr]    Compiling clap v2.34.0
[INFO] [stderr]    Compiling console v0.15.0
[INFO] [stderr]    Compiling structopt v0.3.26
[INFO] [stderr]    Compiling espr v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling serde_yaml v0.8.24
[INFO] [stderr]    Compiling insta v1.14.1
[INFO] [stderr] error: could not compile `espr`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name espr --edition=2021 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=761dcbd019d9e4de -C extra-filename=-761dcbd019d9e4de --out-dir /opt/rustwide/target/i686-unknown-linux-musl/debug/deps --target i686-unknown-linux-musl -L dependency=/opt/rustwide/target/i686-unknown-linux-musl/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern inflector=/opt/rustwide/target/i686-unknown-linux-musl/debug/deps/libinflector-2cd4849297e5857a.rlib --extern check_keyword=/opt/rustwide/target/i686-unknown-linux-musl/debug/deps/libcheck_keyword-7373fc052b049128.rlib --extern derive_more=/opt/rustwide/target/debug/deps/libderive_more-43637ed95412977c.so --extern insta=/opt/rustwide/target/i686-unknown-linux-musl/debug/deps/libinsta-48ddca578cd884a1.rlib --extern itertools=/opt/rustwide/target/i686-unknown-linux-musl/debug/deps/libitertools-b991fdb440d35d18.rlib --extern katexit=/opt/rustwide/target/debug/deps/libkatexit-ba73c1fb94fbecc3.so --extern maplit=/opt/rustwide/target/i686-unknown-linux-musl/debug/deps/libmaplit-0e53c3d1cc1dd916.rlib --extern nom=/opt/rustwide/target/i686-unknown-linux-musl/debug/deps/libnom-f1ca8fc0ac491c07.rlib --extern proc_macro2=/opt/rustwide/target/i686-unknown-linux-musl/debug/deps/libproc_macro2-51dde0f74c45f774.rlib --extern quote=/opt/rustwide/target/i686-unknown-linux-musl/debug/deps/libquote-a97f5c43a55970f8.rlib --extern structopt=/opt/rustwide/target/i686-unknown-linux-musl/debug/deps/libstructopt-a74e6b3a0000c878.rlib --extern syn=/opt/rustwide/target/i686-unknown-linux-musl/debug/deps/libsyn-430248d7f3a7b72c.rlib --extern thiserror=/opt/rustwide/target/i686-unknown-linux-musl/debug/deps/libthiserror-774f5b86ec4611ea.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" "880f4f80757194e43bcd5ba05e4f28f7fb568b21a02f9be00c8401ec5574c5a3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "880f4f80757194e43bcd5ba05e4f28f7fb568b21a02f9be00c8401ec5574c5a3", kill_on_drop: false }`
[INFO] [stdout] 880f4f80757194e43bcd5ba05e4f28f7fb568b21a02f9be00c8401ec5574c5a3