[INFO] updating cached repository https://github.com/RobinThrift/snpts
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune", kill_on_drop: false }`
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c79b38f822cfa55aae4ed12d5ba6ed0a3f4fa528
[INFO] testing RobinThrift/snpts against try#03a1ea71b075ab964b5278bc6e74cd6c52c36ee0 for pr-74409
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRobinThrift%2Fsnpts" "/workspace/builds/worker-9/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-9/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/RobinThrift/snpts on toolchain 03a1ea71b075ab964b5278bc6e74cd6c52c36ee0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/RobinThrift/snpts
[INFO] finished tweaking git repo https://github.com/RobinThrift/snpts
[INFO] tweaked toml for git repo https://github.com/RobinThrift/snpts written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate git repo https://github.com/RobinThrift/snpts already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] error: the lock file /workspace/builds/worker-9/source/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] [stderr] If you want to try to generate the lock file without accessing the network, use the --offline flag.
[INFO] the lockfile is outdated, regenerating it
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f793121a0d70b35e97559b04abfd622bdf2427274c70477efadbb5b0bd4df398
[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" "f793121a0d70b35e97559b04abfd622bdf2427274c70477efadbb5b0bd4df398", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f793121a0d70b35e97559b04abfd622bdf2427274c70477efadbb5b0bd4df398", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f793121a0d70b35e97559b04abfd622bdf2427274c70477efadbb5b0bd4df398", kill_on_drop: false }`
[INFO] [stdout] f793121a0d70b35e97559b04abfd622bdf2427274c70477efadbb5b0bd4df398
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] adb405a4f3f61d5a431d38502fcde9c6e9fb566299d0ccab391842ea3df92b6f
[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" "adb405a4f3f61d5a431d38502fcde9c6e9fb566299d0ccab391842ea3df92b6f", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.73
[INFO] [stderr]    Compiling winapi-build v0.1.1
[INFO] [stderr]    Compiling winapi v0.2.8
[INFO] [stderr]    Compiling unicode-width v0.1.8
[INFO] [stderr]    Compiling regex-syntax v0.3.9
[INFO] [stderr]    Compiling utf8-ranges v0.1.3
[INFO] [stderr]    Compiling rustc-serialize v0.3.24
[INFO] [stderr]    Compiling getopts v0.2.21
[INFO] [stderr]    Compiling kernel32-sys v0.2.2
[INFO] [stderr]    Compiling thread-id v2.0.0
[INFO] [stderr]    Compiling memchr v0.1.11
[INFO] [stderr]    Compiling thread_local v0.2.7
[INFO] [stderr]    Compiling aho-corasick v0.5.3
[INFO] [stderr]    Compiling regex v0.1.80
[INFO] [stderr]    Compiling snpts v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0423]: expected value, found enum `Json`
[INFO] [stdout]   --> src/utils/db.rs:22:26
[INFO] [stdout]    |
[INFO] [stdout] 22 |         let data = match Json.from_reader(&fd) {
[INFO] [stdout]    |                          ^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: try using one of the enum's variants
[INFO] [stdout]    |
[INFO] [stdout] 22 |         let data = match utils::db::Json::I64.from_reader(&fd) {
[INFO] [stdout]    |                          ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 22 |         let data = match utils::db::Json::U64.from_reader(&fd) {
[INFO] [stdout]    |                          ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 22 |         let data = match utils::db::Json::F64.from_reader(&fd) {
[INFO] [stdout]    |                          ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 22 |         let data = match utils::db::Json::String.from_reader(&fd) {
[INFO] [stdout]    |                          ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]      and 4 other candidates
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::env::home_dir`
[INFO] [stdout]  --> src/commands/new.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::env::home_dir;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stdout]   --> src/utils/db.rs:23:66
[INFO] [stdout]    |
[INFO] [stdout] 23 |             Err(reason) => { panic!("Couldn't read DB file: {}", Error::description(&reason)) },
[INFO] [stdout]    |                                                                  ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated item 'std::env::home_dir': This function's behavior is unexpected and probably not what you want. Consider using a crate from crates.io instead.
[INFO] [stdout]  --> src/commands/new.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::env::home_dir;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0423`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `snpts`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "adb405a4f3f61d5a431d38502fcde9c6e9fb566299d0ccab391842ea3df92b6f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "adb405a4f3f61d5a431d38502fcde9c6e9fb566299d0ccab391842ea3df92b6f", kill_on_drop: false }`
[INFO] [stdout] adb405a4f3f61d5a431d38502fcde9c6e9fb566299d0ccab391842ea3df92b6f