[INFO] updating cached repository https://github.com/cyndis/u2f-nfchidemu
[INFO] running `"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"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] e61f357b2848ec70f1bdaa5c54c6d568b07a8362
[INFO] checking cyndis/u2f-nfchidemu against try#e4dba30b9b475d8750370c4dfb49b6541990904d for pr-71393
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcyndis%2Fu2f-nfchidemu" "/workspace/builds/worker-13/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-13/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/cyndis/u2f-nfchidemu on toolchain e4dba30b9b475d8750370c4dfb49b6541990904d
[INFO] running `"/workspace/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/cyndis/u2f-nfchidemu
[INFO] finished tweaking git repo https://github.com/cyndis/u2f-nfchidemu
[INFO] tweaked toml for git repo https://github.com/cyndis/u2f-nfchidemu written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] crate git repo https://github.com/cyndis/u2f-nfchidemu already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr] error: the lock file /workspace/builds/worker-13/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[INFO] the lockfile is outdated, regenerating it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 `"/workspace/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "/opt/rustwide/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] a58910b4942f334b61d13e579a6f963a6c95d84d7448c869d8f56d4d4e1376c8
[INFO] running `"docker" "start" "-a" "a58910b4942f334b61d13e579a6f963a6c95d84d7448c869d8f56d4d4e1376c8"`
[INFO] [stderr]    Compiling nix v0.13.1
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]     Checking nfc-sys v0.1.5
[INFO] [stderr]     Checking privdrop v0.2.2
[INFO] [stderr]     Checking u2f-nfchidemu v1.0.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/main.rs:18:38
[INFO] [stderr]    |
[INFO] [stderr] 18 |     pub fn new() -> Result<Uhid, Box<std::error::Error>> {
[INFO] [stderr]    |                                      ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/main.rs:27:73
[INFO] [stderr]    |
[INFO] [stderr] 27 |     pub fn write(&mut self, event: &uhid::uhid_event) -> Result<(), Box<std::error::Error>> {
[INFO] [stderr]    |                                                                         ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/main.rs:38:60
[INFO] [stderr]    |
[INFO] [stderr] 38 |     pub fn read(&mut self) -> Result<uhid::uhid_event, Box<std::error::Error>> {
[INFO] [stderr]    |                                                            ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/main.rs:87:55
[INFO] [stderr]    |
[INFO] [stderr] 87 |     fn new(uhid: &'a mut Uhid) -> Result<Hid<'a>, Box<std::error::Error>> {
[INFO] [stderr]    |                                                       ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:104:50
[INFO] [stderr]     |
[INFO] [stderr] 104 |     fn read(&mut self) -> Result<HidMessage, Box<std::error::Error>> {
[INFO] [stderr]     |                                                  ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:163:61
[INFO] [stderr]     |
[INFO] [stderr] 163 |     fn write(&mut self, msg: &HidMessage) -> Result<(), Box<std::error::Error>> {
[INFO] [stderr]     |                                                             ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:221:29
[INFO] [stderr]     |
[INFO] [stderr] 221 | fn main() -> Result<(), Box<std::error::Error>> {
[INFO] [stderr]     |                             ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/main.rs:18:38
[INFO] [stderr]    |
[INFO] [stderr] 18 |     pub fn new() -> Result<Uhid, Box<std::error::Error>> {
[INFO] [stderr]    |                                      ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/main.rs:27:73
[INFO] [stderr]    |
[INFO] [stderr] 27 |     pub fn write(&mut self, event: &uhid::uhid_event) -> Result<(), Box<std::error::Error>> {
[INFO] [stderr]    |                                                                         ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/main.rs:38:60
[INFO] [stderr]    |
[INFO] [stderr] 38 |     pub fn read(&mut self) -> Result<uhid::uhid_event, Box<std::error::Error>> {
[INFO] [stderr]    |                                                            ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/main.rs:87:55
[INFO] [stderr]    |
[INFO] [stderr] 87 |     fn new(uhid: &'a mut Uhid) -> Result<Hid<'a>, Box<std::error::Error>> {
[INFO] [stderr]    |                                                       ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:104:50
[INFO] [stderr]     |
[INFO] [stderr] 104 |     fn read(&mut self) -> Result<HidMessage, Box<std::error::Error>> {
[INFO] [stderr]     |                                                  ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:163:61
[INFO] [stderr]     |
[INFO] [stderr] 163 |     fn write(&mut self, msg: &HidMessage) -> Result<(), Box<std::error::Error>> {
[INFO] [stderr]     |                                                             ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:221:29
[INFO] [stderr]     |
[INFO] [stderr] 221 | fn main() -> Result<(), Box<std::error::Error>> {
[INFO] [stderr]     |                             ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error`
[INFO] [stderr] 
[INFO] [stderr] warning: 7 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: 7 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 10.83s
[INFO] running `"docker" "inspect" "a58910b4942f334b61d13e579a6f963a6c95d84d7448c869d8f56d4d4e1376c8"`
[INFO] running `"docker" "rm" "-f" "a58910b4942f334b61d13e579a6f963a6c95d84d7448c869d8f56d4d4e1376c8"`
[INFO] [stdout] a58910b4942f334b61d13e579a6f963a6c95d84d7448c869d8f56d4d4e1376c8