[INFO] updating cached repository https://github.com/joel-simon/fastaq_ngrams
[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] a3ba5361c8320b635d19769cea948b117a0beb56
[INFO] checking joel-simon/fastaq_ngrams against master#45d050cde277b22a755847338f2acc2c7b834141 for pr-71393
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjoel-simon%2Ffastaq_ngrams" "/workspace/builds/worker-3/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/joel-simon/fastaq_ngrams on toolchain 45d050cde277b22a755847338f2acc2c7b834141
[INFO] running `"/workspace/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/joel-simon/fastaq_ngrams
[INFO] finished tweaking git repo https://github.com/joel-simon/fastaq_ngrams
[INFO] tweaked toml for git repo https://github.com/joel-simon/fastaq_ngrams written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/joel-simon/fastaq_ngrams already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "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-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "+45d050cde277b22a755847338f2acc2c7b834141" "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] 6d241d0abc764281032e7988308fd564eba26c1a6ee93a062efa0db982dbba78
[INFO] running `"docker" "start" "-a" "6d241d0abc764281032e7988308fd564eba26c1a6ee93a062efa0db982dbba78"`
[INFO] [stderr]     Checking seq_cluster v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr] error[E0432]: unresolved import `std::old_io`
[INFO] [stderr]  --> src/main.rs:2:10
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::old_io::File;
[INFO] [stderr]   |          ^^^^^^ could not find `old_io` in `std`
[INFO] [stderr] 
[INFO] [stderr] error[E0432]: unresolved import `std::old_io`
[INFO] [stderr]  --> src/main.rs:4:10
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::old_io::BufferedReader;
[INFO] [stderr]   |          ^^^^^^ could not find `old_io` in `std`
[INFO] [stderr] 
[INFO] [stderr] error[E0433]: failed to resolve: use of undeclared type or module `Path`
[INFO] [stderr]   --> src/main.rs:52:14
[INFO] [stderr]    |
[INFO] [stderr] 52 |   let path = Path::new(path);
[INFO] [stderr]    |              ^^^^ use of undeclared type or module `Path`
[INFO] [stderr] 
[INFO] [stderr] error[E0425]: cannot find function `range` in this scope
[INFO] [stderr]    --> src/main.rs:103:14
[INFO] [stderr]     |
[INFO] [stderr] 103 |     for i in range(0, (*record).seq.len() - k +1) {
[INFO] [stderr]     |              ^^^^^ not found in this scope
[INFO] [stderr] 
[INFO] [stderr] error[E0425]: cannot find function `range` in this scope
[INFO] [stderr]    --> src/main.rs:105:16
[INFO] [stderr]     |
[INFO] [stderr] 105 |       for j in range(i, i+k) {
[INFO] [stderr]     |                ^^^^^ not found in this scope
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::os`
[INFO] [stderr]  --> src/main.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::os;
[INFO] [stderr]   |     ^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 5 previous errors; 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0425, E0432, E0433.
[INFO] [stderr] For more information about an error, try `rustc --explain E0425`.
[INFO] [stderr] error: could not compile `seq_cluster`.
[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::old_io`
[INFO] [stderr]  --> src/main.rs:2:10
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::old_io::File;
[INFO] [stderr]   |          ^^^^^^ could not find `old_io` in `std`
[INFO] [stderr] 
[INFO] [stderr] error[E0432]: unresolved import `std::old_io`
[INFO] [stderr]  --> src/main.rs:4:10
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::old_io::BufferedReader;
[INFO] [stderr]   |          ^^^^^^ could not find `old_io` in `std`
[INFO] [stderr] 
[INFO] [stderr] error[E0433]: failed to resolve: use of undeclared type or module `Path`
[INFO] [stderr]   --> src/main.rs:52:14
[INFO] [stderr]    |
[INFO] [stderr] 52 |   let path = Path::new(path);
[INFO] [stderr]    |              ^^^^ use of undeclared type or module `Path`
[INFO] [stderr] 
[INFO] [stderr] error[E0425]: cannot find function `range` in this scope
[INFO] [stderr]    --> src/main.rs:103:14
[INFO] [stderr]     |
[INFO] [stderr] 103 |     for i in range(0, (*record).seq.len() - k +1) {
[INFO] [stderr]     |              ^^^^^ not found in this scope
[INFO] [stderr] 
[INFO] [stderr] error[E0425]: cannot find function `range` in this scope
[INFO] [stderr]    --> src/main.rs:105:16
[INFO] [stderr]     |
[INFO] [stderr] 105 |       for j in range(i, i+k) {
[INFO] [stderr]     |                ^^^^^ not found in this scope
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::os`
[INFO] [stderr]  --> src/main.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::os;
[INFO] [stderr]   |     ^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 5 previous errors; 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0425, E0432, E0433.
[INFO] [stderr] For more information about an error, try `rustc --explain E0425`.
[INFO] [stderr] error: could not compile `seq_cluster`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "6d241d0abc764281032e7988308fd564eba26c1a6ee93a062efa0db982dbba78"`
[INFO] running `"docker" "rm" "-f" "6d241d0abc764281032e7988308fd564eba26c1a6ee93a062efa0db982dbba78"`
[INFO] [stdout] 6d241d0abc764281032e7988308fd564eba26c1a6ee93a062efa0db982dbba78