[INFO] updating cached repository https://github.com/flyingcircusio/userscan
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/mnt/big/crater/work/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] 10b37f4d77662c26d7a9030ed28ed7bae259801c
[INFO] checking flyingcircusio/userscan against master#9b9d2aff8de4d499b4ba7ca406e000f8d3754ea7 for pr-64564
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2Fflyingcircusio%2Fuserscan" "work/builds/worker-4/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/flyingcircusio/userscan on toolchain 9b9d2aff8de4d499b4ba7ca406e000f8d3754ea7-alt
[INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+9b9d2aff8de4d499b4ba7ca406e000f8d3754ea7-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/flyingcircusio/userscan
[INFO] finished tweaking git repo https://github.com/flyingcircusio/userscan
[INFO] tweaked toml for git repo https://github.com/flyingcircusio/userscan written to work/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/flyingcircusio/userscan already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+9b9d2aff8de4d499b4ba7ca406e000f8d3754ea7-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/mnt/big/crater/work/builds/worker-4/source:/opt/rustwide/workdir:ro,Z" "-v" "/mnt/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-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" "+9b9d2aff8de4d499b4ba7ca406e000f8d3754ea7-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 3c6c6e8b9c24f28d5df8cce5a1d13fa9b205454fb4ff4898bd2b8625daa681a1
[INFO] running `"docker" "start" "-a" "3c6c6e8b9c24f28d5df8cce5a1d13fa9b205454fb4ff4898bd2b8625daa681a1"`
[INFO] [stderr]     Checking term_size v0.3.1
[INFO] [stderr]     Checking minilzo-sys v0.1.0
[INFO] [stderr]     Checking users v0.8.1
[INFO] [stderr]     Checking crossbeam-epoch v0.5.2
[INFO] [stderr]     Checking crossbeam-epoch v0.6.1
[INFO] [stderr]     Checking bzip2-sys v0.1.7
[INFO] [stderr]     Checking rmp v0.8.7
[INFO] [stderr]     Checking parking_lot_core v0.3.1
[INFO] [stderr]     Checking globset v0.4.2
[INFO] [stderr]     Checking error-chain v0.12.0
[INFO] [stderr]     Checking bzip2 v0.3.3
[INFO] [stderr]     Checking minilzo v0.2.0
[INFO] [stderr]     Checking textwrap v0.10.0
[INFO] [stderr]     Checking parking_lot v0.6.4
[INFO] [stderr]     Checking crossbeam-deque v0.5.2
[INFO] [stderr]     Checking rmp-serde v0.13.7
[INFO] [stderr]     Checking zip v0.5.1
[INFO] [stderr]     Checking clap v2.32.0
[INFO] [stderr]     Checking ignore v0.4.6
[INFO] [stderr]     Checking crossbeam-channel v0.2.6
[INFO] [stderr]     Checking crossbeam v0.4.1
[INFO] [stderr]     Checking structopt v0.2.15
[INFO] [stderr]     Checking fc-userscan v0.4.3 (/opt/rustwide/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/output.rs:74:45
[INFO] [stderr]    |
[INFO] [stderr] 74 |     pub fn write_store_paths(&self, w: &mut Write, sp: &StorePaths) -> io::Result<()> {
[INFO] [stderr]    |                                             ^^^^^ help: use `dyn`: `dyn Write`
[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/storepaths/mod.rs:73:43
[INFO] [stderr]    |
[INFO] [stderr] 73 |     pub fn iter_refs<'a>(&'a self) -> Box<Iterator<Item = &Path> + 'a> {
[INFO] [stderr]    |                                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = &Path> + 'a`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/walk.rs:29:64
[INFO] [stderr]    |
[INFO] [stderr] 29 |     fn create(app: &App, stats: &mut Statistics, gcroots: &mut Register) -> Result<Self> {
[INFO] [stderr]    |                                                                ^^^^^^^^ help: use `dyn`: `dyn Register`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/walk.rs:101:47
[INFO] [stderr]     |
[INFO] [stderr] 101 | pub fn spawn_threads(app: &App, gcroots: &mut Register) -> Result<Statistics> {
[INFO] [stderr]     |                                               ^^^^^^^^ help: use `dyn`: `dyn Register`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:113:37
[INFO] [stderr]     |
[INFO] [stderr] 113 |     fn gcroots(&self) -> Result<Box<Register>> {
[INFO] [stderr]     |                                     ^^^^^^^^ help: use `dyn`: `dyn Register`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/output.rs:74:45
[INFO] [stderr]    |
[INFO] [stderr] 74 |     pub fn write_store_paths(&self, w: &mut Write, sp: &StorePaths) -> io::Result<()> {
[INFO] [stderr]    |                                             ^^^^^ help: use `dyn`: `dyn Write`
[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/storepaths/mod.rs:73:43
[INFO] [stderr]    |
[INFO] [stderr] 73 |     pub fn iter_refs<'a>(&'a self) -> Box<Iterator<Item = &Path> + 'a> {
[INFO] [stderr]    |                                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = &Path> + 'a`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/walk.rs:29:64
[INFO] [stderr]    |
[INFO] [stderr] 29 |     fn create(app: &App, stats: &mut Statistics, gcroots: &mut Register) -> Result<Self> {
[INFO] [stderr]    |                                                                ^^^^^^^^ help: use `dyn`: `dyn Register`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/walk.rs:101:47
[INFO] [stderr]     |
[INFO] [stderr] 101 | pub fn spawn_threads(app: &App, gcroots: &mut Register) -> Result<Statistics> {
[INFO] [stderr]     |                                               ^^^^^^^^ help: use `dyn`: `dyn Register`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:113:37
[INFO] [stderr]     |
[INFO] [stderr] 113 |     fn gcroots(&self) -> Result<Box<Register>> {
[INFO] [stderr]     |                                     ^^^^^^^^ help: use `dyn`: `dyn Register`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 31.98s
[INFO] running `"docker" "inspect" "3c6c6e8b9c24f28d5df8cce5a1d13fa9b205454fb4ff4898bd2b8625daa681a1"`
[INFO] running `"docker" "rm" "-f" "3c6c6e8b9c24f28d5df8cce5a1d13fa9b205454fb4ff4898bd2b8625daa681a1"`
[INFO] [stdout] 3c6c6e8b9c24f28d5df8cce5a1d13fa9b205454fb4ff4898bd2b8625daa681a1