[INFO] fetching crate espr 0.2.0...
[INFO] testing espr-0.2.0 against 1.60.0 for beta-1.61-1
[INFO] extracting crate espr 0.2.0 into /workspace/builds/worker-107/source
[INFO] validating manifest of crates.io crate espr 0.2.0 on toolchain 1.60.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate espr 0.2.0
[INFO] finished tweaking crates.io crate espr 0.2.0
[INFO] tweaked toml for crates.io crate espr 0.2.0 written to /workspace/builds/worker-107/source/Cargo.toml
[INFO] crate crates.io crate espr 0.2.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded insta v1.12.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-107/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-107/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 265068d8115ad39c77f7d371bc27805c3354f04e7f0e6f99659cd0c2f27b2204
[INFO] running `Command { std: "docker" "start" "-a" "265068d8115ad39c77f7d371bc27805c3354f04e7f0e6f99659cd0c2f27b2204", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "265068d8115ad39c77f7d371bc27805c3354f04e7f0e6f99659cd0c2f27b2204", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "265068d8115ad39c77f7d371bc27805c3354f04e7f0e6f99659cd0c2f27b2204", kill_on_drop: false }`
[INFO] [stdout] 265068d8115ad39c77f7d371bc27805c3354f04e7f0e6f99659cd0c2f27b2204
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-107/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-107/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=warn" "-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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6e83982a97d4dc43e08c2898bca629b2b380fe2ebd482bf1905a44269846cbcc
[INFO] running `Command { std: "docker" "start" "-a" "6e83982a97d4dc43e08c2898bca629b2b380fe2ebd482bf1905a44269846cbcc", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling proc-macro2 v1.0.36
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling version_check v0.9.4
[INFO] [stderr]    Compiling syn v1.0.86
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling libc v0.2.118
[INFO] [stderr]    Compiling unicode-segmentation v1.9.0
[INFO] [stderr]    Compiling unicode-width v0.1.9
[INFO] [stderr]    Compiling regex-syntax v0.6.25
[INFO] [stderr]    Compiling ansi_term v0.12.1
[INFO] [stderr]    Compiling strsim v0.8.0
[INFO] [stderr]    Compiling bitflags v1.3.2
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling vec_map v0.8.2
[INFO] [stderr]    Compiling minimal-lexical v0.2.1
[INFO] [stderr]    Compiling either v1.6.1
[INFO] [stderr]    Compiling convert_case v0.4.0
[INFO] [stderr]    Compiling maplit v1.0.2
[INFO] [stderr]    Compiling check_keyword v0.1.1
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]    Compiling itertools v0.10.3
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling nom v7.1.0
[INFO] [stderr]    Compiling aho-corasick v0.7.18
[INFO] [stderr]    Compiling quote v1.0.15
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling clap v2.34.0
[INFO] [stderr]    Compiling regex v1.5.4
[INFO] [stderr]    Compiling Inflector v0.11.4
[INFO] [stderr]    Compiling thiserror-impl v1.0.30
[INFO] [stderr]    Compiling structopt-derive v0.4.18
[INFO] [stderr]    Compiling derive_more v0.99.17
[INFO] [stderr]    Compiling thiserror v1.0.30
[INFO] [stderr]    Compiling structopt v0.3.26
[INFO] [stderr]    Compiling espr v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 31.34s
[INFO] running `Command { std: "docker" "inspect" "6e83982a97d4dc43e08c2898bca629b2b380fe2ebd482bf1905a44269846cbcc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6e83982a97d4dc43e08c2898bca629b2b380fe2ebd482bf1905a44269846cbcc", kill_on_drop: false }`
[INFO] [stdout] 6e83982a97d4dc43e08c2898bca629b2b380fe2ebd482bf1905a44269846cbcc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-107/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-107/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=warn" "-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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5ec6ea044d0c3f7921f3f2dccf0abf1e092301fa60f27fe01aa2b2341698b459
[INFO] running `Command { std: "docker" "start" "-a" "5ec6ea044d0c3f7921f3f2dccf0abf1e092301fa60f27fe01aa2b2341698b459", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.118
[INFO] [stderr]    Compiling serde_derive v1.0.136
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling serde v1.0.136
[INFO] [stderr]    Compiling hashbrown v0.11.2
[INFO] [stderr]    Compiling linked-hash-map v0.5.4
[INFO] [stderr]    Compiling serde_json v1.0.79
[INFO] [stderr]    Compiling ryu v1.0.9
[INFO] [stderr]    Compiling itoa v1.0.1
[INFO] [stderr]    Compiling once_cell v1.9.0
[INFO] [stderr]    Compiling similar v2.1.0
[INFO] [stderr]    Compiling yaml-rust v0.4.5
[INFO] [stderr]    Compiling indexmap v1.8.0
[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 v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling serde_yaml v0.8.23
[INFO] [stderr]    Compiling insta v1.12.0
[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=868b823593ab553a -C extra-filename=-868b823593ab553a --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern inflector=/opt/rustwide/target/debug/deps/libinflector-563c6925af17b83f.rlib --extern check_keyword=/opt/rustwide/target/debug/deps/libcheck_keyword-b2a9106301c8518a.rlib --extern derive_more=/opt/rustwide/target/debug/deps/libderive_more-d14918576024b4c3.so --extern insta=/opt/rustwide/target/debug/deps/libinsta-02f433ca4fa86606.rlib --extern itertools=/opt/rustwide/target/debug/deps/libitertools-1f40b5ee2082b85b.rlib --extern maplit=/opt/rustwide/target/debug/deps/libmaplit-63e91ef38e22eaad.rlib --extern nom=/opt/rustwide/target/debug/deps/libnom-2f4f60a7760837e0.rlib --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-d0e4c723ecad0f39.rlib --extern quote=/opt/rustwide/target/debug/deps/libquote-3df76aa48d62b863.rlib --extern structopt=/opt/rustwide/target/debug/deps/libstructopt-681f649563b593a2.rlib --extern syn=/opt/rustwide/target/debug/deps/libsyn-ddb9616eeeaa1c34.rlib --extern thiserror=/opt/rustwide/target/debug/deps/libthiserror-aa597e39d63ad43b.rlib --cap-lints=warn` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "5ec6ea044d0c3f7921f3f2dccf0abf1e092301fa60f27fe01aa2b2341698b459", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5ec6ea044d0c3f7921f3f2dccf0abf1e092301fa60f27fe01aa2b2341698b459", kill_on_drop: false }`
[INFO] [stdout] 5ec6ea044d0c3f7921f3f2dccf0abf1e092301fa60f27fe01aa2b2341698b459