[INFO] cloning repository https://github.com/apibillme/recommenders
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/apibillme/recommenders" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fapibillme%2Frecommenders", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fapibillme%2Frecommenders'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 1ff3dd20700728d4cbc24fe649b2259bcb80436d
[INFO] checking apibillme/recommenders against try#a7a572ce3edd6d476191fbfe92c9c1986e009b34 for pr-87190-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fapibillme%2Frecommenders" "/workspace/builds/worker-93/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-93/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/apibillme/recommenders on toolchain a7a572ce3edd6d476191fbfe92c9c1986e009b34
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/apibillme/recommenders
[INFO] finished tweaking git repo https://github.com/apibillme/recommenders
[INFO] tweaked toml for git repo https://github.com/apibillme/recommenders written to /workspace/builds/worker-93/source/Cargo.toml
[INFO] crate git repo https://github.com/apibillme/recommenders already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "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 bincode v1.3.2
[INFO] [stderr]   Downloaded matrixmultiply v0.3.0
[INFO] [stderr]   Downloaded cblas-sys v0.1.4
[INFO] [stderr]   Downloaded blas-src v0.8.0
[INFO] [stderr]   Downloaded wyrm v0.9.1
[INFO] [stderr]   Downloaded tar v0.4.33
[INFO] [stderr]   Downloaded intel-mkl-tool v0.1.0
[INFO] [stderr]   Downloaded nb-connect v1.1.0
[INFO] [stderr]   Downloaded async-lock v2.3.0
[INFO] [stderr]   Downloaded curl v0.4.35
[INFO] [stderr]   Downloaded intel-mkl-src v0.5.0
[INFO] [stderr]   Downloaded smallvec v0.5.1
[INFO] [stderr]   Downloaded ndarray v0.11.2
[INFO] [stderr]   Downloaded ndarray v0.15.1
[INFO] [stderr]   Downloaded curl-sys v0.4.41+curl-7.75.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-93/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-93/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] dacc97dc6252a01659b94056c0b764387906bae9ebb71632827263fb4f615d27
[INFO] running `Command { std: "docker" "start" "-a" "dacc97dc6252a01659b94056c0b764387906bae9ebb71632827263fb4f615d27", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dacc97dc6252a01659b94056c0b764387906bae9ebb71632827263fb4f615d27", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dacc97dc6252a01659b94056c0b764387906bae9ebb71632827263fb4f615d27", kill_on_drop: false }`
[INFO] [stdout] dacc97dc6252a01659b94056c0b764387906bae9ebb71632827263fb4f615d27
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-93/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-93/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d47037a4ae811e320bddb3b6bcfa6481118cdcdc37dbae36e81bccd84aae7cd1
[INFO] running `Command { std: "docker" "start" "-a" "d47037a4ae811e320bddb3b6bcfa6481118cdcdc37dbae36e81bccd84aae7cd1", kill_on_drop: false }`
[INFO] [stderr] Copying to /tmp/fixit
[INFO] [stderr] Running `cargo fix --edition`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] note: Switching to Edition 2021 will enable the use of the version 2 feature resolver in Cargo.
[INFO] [stderr] This may cause some dependencies to be built with fewer features enabled than previously.
[INFO] [stderr] More information about the resolver changes may be found at https://doc.rust-lang.org/nightly/edition-guide/rust-2021/default-cargo-resolver.html
[INFO] [stderr] When building the following dependencies, the given features will no longer be used:
[INFO] [stderr] 
[INFO] [stderr]   cc v1.0.67 (as host dependency): jobserver, parallel
[INFO] [stderr]   libc v0.2.92: align
[INFO] [stderr]   ndarray v0.15.1: blas, cblas-sys, libc
[INFO] [stderr] 
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.92
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling proc-macro2 v1.0.26
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.68
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling value-bag v1.0.0-alpha.6
[INFO] [stderr]    Compiling pkg-config v0.3.19
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling serde v1.0.125
[INFO] [stderr]    Compiling either v1.6.1
[INFO] [stderr]    Compiling glob v0.3.0
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling gimli v0.23.0
[INFO] [stderr]    Compiling zstd-safe v2.0.6+zstd.1.4.7
[INFO] [stderr]    Compiling adler v1.0.2
[INFO] [stderr]    Compiling rayon-core v1.9.0
[INFO] [stderr]    Compiling curl v0.4.35
[INFO] [stderr]     Checking futures-io v0.3.13
[INFO] [stderr]    Compiling object v0.23.0
[INFO] [stderr]     Checking foreign-types-shared v0.1.1
[INFO] [stderr]     Checking matches v0.1.8
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling rustc-demangle v0.1.18
[INFO] [stderr]     Checking hashbrown v0.9.1
[INFO] [stderr]    Compiling native-tls v0.2.7
[INFO] [stderr]     Checking slab v0.4.2
[INFO] [stderr]    Compiling httparse v1.3.5
[INFO] [stderr]    Compiling openssl-probe v0.1.2
[INFO] [stderr]     Checking tinyvec_macros v0.1.0
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling matrixmultiply v0.1.15
[INFO] [stderr]     Checking percent-encoding v2.1.0
[INFO] [stderr]     Checking vec-arena v1.1.0
[INFO] [stderr]    Compiling ndarray v0.11.2
[INFO] [stderr]    Compiling serde_json v1.0.64
[INFO] [stderr]     Checking rawpointer v0.1.0
[INFO] [stderr]     Checking atomic-waker v1.0.0
[INFO] [stderr]     Checking atom v0.3.6
[INFO] [stderr]     Checking plotters-backend v0.3.0
[INFO] [stderr]     Checking rawpointer v0.2.1
[INFO] [stderr]     Checking same-file v1.0.6
[INFO] [stderr]     Checking regex-syntax v0.6.23
[INFO] [stderr]     Checking half v1.7.1
[INFO] [stderr]     Checking base64 v0.13.0
[INFO] [stderr]     Checking oorandom v11.1.3
[INFO] [stderr]     Checking concurrent-queue v1.2.2
[INFO] [stderr]     Checking async-mutex v1.4.0
[INFO] [stderr]     Checking async-lock v2.3.0
[INFO] [stderr]     Checking encoding_rs v0.8.28
[INFO] [stderr]     Checking tracing-core v0.1.17
[INFO] [stderr]     Checking tinyvec v1.1.1
[INFO] [stderr]     Checking matrixmultiply v0.3.0
[INFO] [stderr]     Checking unicode-bidi v0.3.4
[INFO] [stderr]     Checking foreign-types v0.3.2
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]     Checking async-channel v1.6.1
[INFO] [stderr]     Checking plotters-svg v0.3.0
[INFO] [stderr]     Checking itertools v0.7.11
[INFO] [stderr]     Checking itertools v0.9.0
[INFO] [stderr]     Checking itertools v0.10.0
[INFO] [stderr]     Checking walkdir v2.3.2
[INFO] [stderr]     Checking form_urlencoded v1.0.1
[INFO] [stderr]    Compiling miniz_oxide v0.4.4
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling crossbeam-utils v0.8.3
[INFO] [stderr]    Compiling memoffset v0.6.3
[INFO] [stderr]    Compiling tokio v1.4.0
[INFO] [stderr]    Compiling indexmap v1.6.2
[INFO] [stderr]    Compiling rayon v1.5.0
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]     Checking futures-lite v1.11.3
[INFO] [stderr]     Checking csv-core v0.1.10
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking tracing v0.1.25
[INFO] [stderr]     Checking regex-automata v0.1.9
[INFO] [stderr]     Checking unicode-normalization v0.1.17
[INFO] [stderr]    Compiling jobserver v0.1.21
[INFO] [stderr]    Compiling filetime v0.2.14
[INFO] [stderr]    Compiling xattr v0.2.2
[INFO] [stderr]    Compiling socket2 v0.3.19
[INFO] [stderr]    Compiling dirs-sys v0.3.5
[INFO] [stderr]    Compiling cast v0.2.3
[INFO] [stderr]     Checking regex v1.4.5
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking socket2 v0.4.0
[INFO] [stderr]     Checking cblas-sys v0.1.4
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]    Compiling dirs v2.0.2
[INFO] [stderr]    Compiling tar v0.4.33
[INFO] [stderr]    Compiling cc v1.0.67
[INFO] [stderr]     Checking nb-connect v1.1.0
[INFO] [stderr]     Checking crossbeam-epoch v0.9.3
[INFO] [stderr]     Checking crossbeam-channel v0.5.0
[INFO] [stderr]     Checking async-executor v1.4.0
[INFO] [stderr]     Checking blocking v1.0.2
[INFO] [stderr]     Checking num-complex v0.1.43
[INFO] [stderr]     Checking num-traits v0.1.43
[INFO] [stderr]     Checking num-complex v0.4.0
[INFO] [stderr]     Checking plotters v0.3.0
[INFO] [stderr]     Checking crossbeam-deque v0.8.0
[INFO] [stderr]     Checking idna v0.2.2
[INFO] [stderr]     Checking criterion-plot v0.4.3
[INFO] [stderr]     Checking url v2.2.1
[INFO] [stderr]    Compiling openssl-sys v0.9.61
[INFO] [stderr]    Compiling libz-sys v1.1.2
[INFO] [stderr]    Compiling zstd-sys v1.4.18+zstd.1.4.7
[INFO] [stderr]    Compiling curl-sys v0.4.41+curl-7.75.0
[INFO] [stderr]    Compiling addr2line v0.14.1
[INFO] [stderr]    Compiling backtrace v0.3.56
[INFO] [stderr]    Compiling openssl v0.10.33
[INFO] [stderr] error: could not compile `syn`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name syn --edition=2018 /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/syn-1.0.68/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts --crate-type lib --emit=dep-info,metadata,link -C embed-bitcode=no -C debuginfo=2 --cfg 'feature="clone-impls"' --cfg 'feature="default"' --cfg 'feature="derive"' --cfg 'feature="extra-traits"' --cfg 'feature="full"' --cfg 'feature="parsing"' --cfg 'feature="printing"' --cfg 'feature="proc-macro"' --cfg 'feature="quote"' --cfg 'feature="visit"' --cfg 'feature="visit-mut"' -C metadata=d6c0942e2d2e2138 -C extra-filename=-d6c0942e2d2e2138 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-f4471f82191a214f.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-7ef6fc8e601802bb.rmeta --extern unicode_xid=/opt/rustwide/target/debug/deps/libunicode_xid-ca70f4dd0d5d1ebc.rmeta --cap-lints allow --cap-lints=forbid` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] [stderr] error: failed to migrate to next edition
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `cargo fix --edition --allow-no-vcs --allow-dirty --frozen --all --all-targets --message-format=json` (exit status: 101)
[INFO] running `Command { std: "docker" "inspect" "d47037a4ae811e320bddb3b6bcfa6481118cdcdc37dbae36e81bccd84aae7cd1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d47037a4ae811e320bddb3b6bcfa6481118cdcdc37dbae36e81bccd84aae7cd1", kill_on_drop: false }`
[INFO] [stdout] d47037a4ae811e320bddb3b6bcfa6481118cdcdc37dbae36e81bccd84aae7cd1