[INFO] updating cached repository https://github.com/mmichie/lightfoot
[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] 31da0ebfea86a59c9b117137826778d74ff4a342
[INFO] checking mmichie/lightfoot against try#e4dba30b9b475d8750370c4dfb49b6541990904d for pr-71393
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmmichie%2Flightfoot" "/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/mmichie/lightfoot 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/mmichie/lightfoot
[INFO] finished tweaking git repo https://github.com/mmichie/lightfoot
[INFO] tweaked toml for git repo https://github.com/mmichie/lightfoot written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/mmichie/lightfoot 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]     Blocking waiting for file lock on package cache
[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" "+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] cd5cf2678299f2e3f46118826ead79c9038e72d3d7d8cc59b79c6621de77af4a
[INFO] running `"docker" "start" "-a" "cd5cf2678299f2e3f46118826ead79c9038e72d3d7d8cc59b79c6621de77af4a"`
[INFO] [stderr]     Checking lightfoot v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr] error[E0432]: unresolved import `std::io::Timer`
[INFO] [stderr]  --> src/main.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::io::Timer;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^ no `Timer` in `io`
[INFO] [stderr] 
[INFO] [stderr] error[E0432]: unresolved import `std::rand`
[INFO] [stderr]  --> src/main.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use std::rand;
[INFO] [stderr]   |     ^^^^^^^^^ no `rand` in the root
[INFO] [stderr] 
[INFO] [stderr] error[E0412]: cannot find type `int` in this scope
[INFO] [stderr]  --> src/main.rs:8:19
[INFO] [stderr]   |
[INFO] [stderr] 8 | static N_THREADS: int = 1000;
[INFO] [stderr]   |                   ^^^ not found in this scope
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no function or associated item named `spawn` found for struct `std::thread::Thread` in the current scope
[INFO] [stderr]   --> src/main.rs:11:45
[INFO] [stderr]    |
[INFO] [stderr] 11 |     let _ = (0..N_THREADS).map( |i| Thread::spawn(move || {
[INFO] [stderr]    |                                             ^^^^^ function or associated item not found in `std::thread::Thread`
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no function or associated item named `milliseconds` found for struct `std::time::Duration` in the current scope
[INFO] [stderr]   --> src/main.rs:15:31
[INFO] [stderr]    |
[INFO] [stderr] 15 |         timer.sleep(Duration::milliseconds(t as i64));
[INFO] [stderr]    |                               ^^^^^^^^^^^^ function or associated item not found in `std::time::Duration`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 5 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0412, E0432, E0599.
[INFO] [stderr] For more information about an error, try `rustc --explain E0412`.
[INFO] [stderr] error[E0432]: unresolved import `std::io::Timer`
[INFO] [stderr]  --> src/main.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::io::Timer;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^ no `Timer` in `io`
[INFO] [stderr] 
[INFO] [stderr] error: could not compile `lightfoot`.
[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[E0432]: unresolved import `std::rand`
[INFO] [stderr]  --> src/main.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use std::rand;
[INFO] [stderr]   |     ^^^^^^^^^ no `rand` in the root
[INFO] [stderr] 
[INFO] [stderr] error[E0412]: cannot find type `int` in this scope
[INFO] [stderr]  --> src/main.rs:8:19
[INFO] [stderr]   |
[INFO] [stderr] 8 | static N_THREADS: int = 1000;
[INFO] [stderr]   |                   ^^^ not found in this scope
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no function or associated item named `spawn` found for struct `std::thread::Thread` in the current scope
[INFO] [stderr]   --> src/main.rs:11:45
[INFO] [stderr]    |
[INFO] [stderr] 11 |     let _ = (0..N_THREADS).map( |i| Thread::spawn(move || {
[INFO] [stderr]    |                                             ^^^^^ function or associated item not found in `std::thread::Thread`
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no function or associated item named `milliseconds` found for struct `std::time::Duration` in the current scope
[INFO] [stderr]   --> src/main.rs:15:31
[INFO] [stderr]    |
[INFO] [stderr] 15 |         timer.sleep(Duration::milliseconds(t as i64));
[INFO] [stderr]    |                               ^^^^^^^^^^^^ function or associated item not found in `std::time::Duration`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 5 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0412, E0432, E0599.
[INFO] [stderr] For more information about an error, try `rustc --explain E0412`.
[INFO] [stderr] error: could not compile `lightfoot`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "cd5cf2678299f2e3f46118826ead79c9038e72d3d7d8cc59b79c6621de77af4a"`
[INFO] running `"docker" "rm" "-f" "cd5cf2678299f2e3f46118826ead79c9038e72d3d7d8cc59b79c6621de77af4a"`
[INFO] [stdout] cd5cf2678299f2e3f46118826ead79c9038e72d3d7d8cc59b79c6621de77af4a