[INFO] cloning repository https://github.com/jstjohn/rust-seqprep
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jstjohn/rust-seqprep" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjstjohn%2Frust-seqprep", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjstjohn%2Frust-seqprep'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e907892c1fd1870f41e72312dd2379b1b074aee0
[INFO] checking jstjohn/rust-seqprep against try#3bb2879ea9e58d65b875f9a98df44f4a43ce2597 for pr-85387
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjstjohn%2Frust-seqprep" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jstjohn/rust-seqprep on toolchain 3bb2879ea9e58d65b875f9a98df44f4a43ce2597
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3bb2879ea9e58d65b875f9a98df44f4a43ce2597" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/jstjohn/rust-seqprep
[INFO] finished tweaking git repo https://github.com/jstjohn/rust-seqprep
[INFO] tweaked toml for git repo https://github.com/jstjohn/rust-seqprep written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/jstjohn/rust-seqprep already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3bb2879ea9e58d65b875f9a98df44f4a43ce2597" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded nalgebra v0.4.0
[INFO] [stderr]   Downloaded bio v0.9.0
[INFO] [stderr]   Downloaded custom_derive v0.1.5
[INFO] [stderr]   Downloaded bit-vec v0.4.3
[INFO] [stderr]   Downloaded csv v0.14.7
[INFO] [stderr]   Downloaded ordered-float v0.2.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+3bb2879ea9e58d65b875f9a98df44f4a43ce2597" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5c83126fdb4cc02b84b180aaadf82dcbc9eb5ecf97c8aabd8a43e5c01a8037aa
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "5c83126fdb4cc02b84b180aaadf82dcbc9eb5ecf97c8aabd8a43e5c01a8037aa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5c83126fdb4cc02b84b180aaadf82dcbc9eb5ecf97c8aabd8a43e5c01a8037aa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5c83126fdb4cc02b84b180aaadf82dcbc9eb5ecf97c8aabd8a43e5c01a8037aa", kill_on_drop: false }`
[INFO] [stdout] 5c83126fdb4cc02b84b180aaadf82dcbc9eb5ecf97c8aabd8a43e5c01a8037aa
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+3bb2879ea9e58d65b875f9a98df44f4a43ce2597" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7a5347971f3ae16438ebcea7b3566edfe504e057e8194a1dbd49db40f6156fd4
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "7a5347971f3ae16438ebcea7b3566edfe504e057e8194a1dbd49db40f6156fd4", kill_on_drop: false }`
[INFO] [stderr]     Checking num-traits v0.1.36
[INFO] [stderr]     Checking libc v0.2.16
[INFO] [stderr]     Checking rustc-serialize v0.3.19
[INFO] [stderr]     Checking bit-vec v0.4.3
[INFO] [stderr]     Checking byteorder v0.5.3
[INFO] [stderr]     Checking approx v0.1.1
[INFO] [stderr]     Checking strsim v0.5.1
[INFO] [stderr]     Checking ansi_term v0.9.0
[INFO] [stderr]     Checking lazy_static v0.1.16
[INFO] [stderr]     Checking unicode-segmentation v0.1.2
[INFO] [stderr]     Checking unicode-width v0.1.3
[INFO] [stderr]     Checking itertools v0.4.19
[INFO] [stderr]     Checking custom_derive v0.1.5
[INFO] [stderr]     Checking unreachable v0.1.1
[INFO] [stderr]    Compiling newtype_derive v0.1.6
[INFO] [stdout] error[E0642]: patterns aren't allowed in functions without bodies
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustc-serialize-0.3.19/src/serialize.rs:147:45
[INFO] [stdout]     |
[INFO] [stdout] 147 | ...                   &f_name: &str,
[INFO] [stdout]     |                       ^^^^^^^ pattern not allowed in function without body
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking bit-set v0.3.0
[INFO] [stderr]     Checking rand v0.3.14
[INFO] [stderr]     Checking term_size v0.2.1
[INFO] [stderr]     Checking clap v2.14.0
[INFO] [stderr]     Checking num-integer v0.1.32
[INFO] [stderr]     Checking ordered-float v0.2.3
[INFO] [stderr]     Checking num-iter v0.1.32
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0642`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rustc-serialize`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "7a5347971f3ae16438ebcea7b3566edfe504e057e8194a1dbd49db40f6156fd4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7a5347971f3ae16438ebcea7b3566edfe504e057e8194a1dbd49db40f6156fd4", kill_on_drop: false }`
[INFO] [stdout] 7a5347971f3ae16438ebcea7b3566edfe504e057e8194a1dbd49db40f6156fd4