[INFO] cloning repository https://github.com/flyingcircusio/userscan
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/flyingcircusio/userscan" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fflyingcircusio%2Fuserscan"`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fflyingcircusio%2Fuserscan'...
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 10b37f4d77662c26d7a9030ed28ed7bae259801c
[INFO] checking flyingcircusio/userscan against master#2748a9fd93dd1a00a4521f4f16de5befbf77f6cd for pr-62262-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fflyingcircusio%2Fuserscan" "/workspace/builds/worker-7/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/flyingcircusio/userscan on toolchain 2748a9fd93dd1a00a4521f4f16de5befbf77f6cd
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "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 /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/flyingcircusio/userscan already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] c4b46b562dd503cc86e3db7e4f837c40a90fb97d9b150359886cc9f0a13b8ab3
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "c4b46b562dd503cc86e3db7e4f837c40a90fb97d9b150359886cc9f0a13b8ab3"`
[INFO] [stderr]    Compiling libc v0.2.50
[INFO] [stderr]     Checking cfg-if v0.1.7
[INFO] [stderr]     Checking lazy_static v1.3.0
[INFO] [stderr]    Compiling cc v1.0.32
[INFO] [stderr]    Compiling memchr v2.2.0
[INFO] [stderr]    Compiling arrayvec v0.4.10
[INFO] [stderr]    Compiling proc-macro2 v0.4.27
[INFO] [stderr]    Compiling num-traits v0.2.6
[INFO] [stderr]    Compiling byteorder v1.3.1
[INFO] [stderr]     Checking smallvec v0.6.9
[INFO] [stderr]    Compiling regex v1.1.2
[INFO] [stderr]     Checking ucd-util v0.1.3
[INFO] [stderr]    Compiling syn v0.15.29
[INFO] [stderr]     Checking utf8-ranges v1.0.2
[INFO] [stderr]    Compiling autocfg v0.1.2
[INFO] [stderr]    Compiling num-integer v0.1.39
[INFO] [stderr]    Compiling serde v1.0.89
[INFO] [stderr]    Compiling unicode-segmentation v1.2.1
[INFO] [stderr]     Checking rustc-demangle v0.1.13
[INFO] [stderr]    Compiling nix v0.13.0
[INFO] [stderr]     Checking podio v0.1.6
[INFO] [stderr]     Checking bytesize v1.0.0
[INFO] [stderr]     Checking log v0.4.6
[INFO] [stderr]     Checking crossbeam-utils v0.6.5
[INFO] [stderr]     Checking thread_local v0.3.6
[INFO] [stderr]     Checking colored v1.7.0
[INFO] [stderr]     Checking regex-syntax v0.6.5
[INFO] [stderr]     Checking crc32fast v1.2.0
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]    Compiling backtrace v0.3.14
[INFO] [stderr]     Checking crossbeam-channel v0.3.8
[INFO] [stderr]     Checking crossbeam-epoch v0.6.1
[INFO] [stderr]     Checking crossbeam-epoch v0.5.2
[INFO] [stderr]     Checking libflate v0.1.21
[INFO] [stderr]    Compiling backtrace-sys v0.1.28
[INFO] [stderr]    Compiling bzip2-sys v0.1.7
[INFO] [stderr]     Checking aho-corasick v0.6.10
[INFO] [stderr]     Checking twoway v0.1.8
[INFO] [stderr]    Compiling quote v0.6.11
[INFO] [stderr]     Checking crossbeam-deque v0.5.2
[INFO] [stderr]     Checking rand v0.5.6
[INFO] [stderr]     Checking term_size v0.3.1
[INFO] [stderr]     Checking atty v0.2.11
[INFO] [stderr]     Checking time v0.1.42
[INFO] [stderr]     Checking minilzo-sys v0.1.0
[INFO] [stderr]     Checking users v0.8.1
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking memmap v0.7.0
[INFO] [stderr]     Checking textwrap v0.10.0
[INFO] [stderr]     Checking minilzo v0.2.0
[INFO] [stderr]     Checking num-traits v0.1.43
[INFO] [stderr]     Checking clap v2.32.0
[INFO] [stderr]     Checking rmp v0.8.7
[INFO] [stderr]     Checking bzip2 v0.3.3
[INFO] [stderr]     Checking chrono v0.4.6
[INFO] [stderr]     Checking zip v0.5.1
[INFO] [stderr]     Checking tempdir v0.3.7
[INFO] [stderr]     Checking error-chain v0.12.0
[INFO] [stderr]     Checking parking_lot_core v0.3.1
[INFO] [stderr]     Checking parking_lot v0.6.4
[INFO] [stderr]     Checking crossbeam-channel v0.2.6
[INFO] [stderr]     Checking crossbeam v0.4.1
[INFO] [stderr]     Checking globset v0.4.2
[INFO] [stderr]     Checking env_logger v0.6.1
[INFO] [stderr]     Checking ignore v0.4.6
[INFO] [stderr]    Compiling structopt-derive v0.2.15
[INFO] [stderr]    Compiling serde_derive v1.0.89
[INFO] [stderr]     Checking rmp-serde v0.13.7
[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 1m 23s
[INFO] running `"docker" "inspect" "c4b46b562dd503cc86e3db7e4f837c40a90fb97d9b150359886cc9f0a13b8ab3"`
[INFO] running `"docker" "rm" "-f" "c4b46b562dd503cc86e3db7e4f837c40a90fb97d9b150359886cc9f0a13b8ab3"`
[INFO] [stdout] c4b46b562dd503cc86e3db7e4f837c40a90fb97d9b150359886cc9f0a13b8ab3