[INFO] cloning repository https://github.com/Super-King-Crimson/lab_rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Super-King-Crimson/lab_rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSuper-King-Crimson%2Flab_rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSuper-King-Crimson%2Flab_rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 77803f174bcde161773b581f6e35c43e7a488847
[INFO] testing Super-King-Crimson/lab_rs against master#1871252fc8bb672d40787e67404e6eaae7059369 for pr-125151
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSuper-King-Crimson%2Flab_rs" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Super-King-Crimson/lab_rs on toolchain 1871252fc8bb672d40787e67404e6eaae7059369
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1871252fc8bb672d40787e67404e6eaae7059369" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Super-King-Crimson/lab_rs
[INFO] finished tweaking git repo https://github.com/Super-King-Crimson/lab_rs
[INFO] tweaked toml for git repo https://github.com/Super-King-Crimson/lab_rs written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/Super-King-Crimson/lab_rs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1871252fc8bb672d40787e67404e6eaae7059369" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds
[ERROR] this task or one of its parent failed!
[ERROR] no output for 300 seconds
[ERROR] note: run with `RUST_BACKTRACE=1` to display a backtrace.
[INFO] testing Super-King-Crimson/lab_rs against try#b642703cf9526da1e72c0b6755753b939a9c6b6d for pr-125151
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSuper-King-Crimson%2Flab_rs" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Super-King-Crimson/lab_rs on toolchain b642703cf9526da1e72c0b6755753b939a9c6b6d
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b642703cf9526da1e72c0b6755753b939a9c6b6d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Super-King-Crimson/lab_rs
[INFO] finished tweaking git repo https://github.com/Super-King-Crimson/lab_rs
[INFO] tweaked toml for git repo https://github.com/Super-King-Crimson/lab_rs written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/Super-King-Crimson/lab_rs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b642703cf9526da1e72c0b6755753b939a9c6b6d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds
[INFO] testing Super-King-Crimson/lab_rs against try#b642703cf9526da1e72c0b6755753b939a9c6b6d for pr-125151
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSuper-King-Crimson%2Flab_rs" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Super-King-Crimson/lab_rs on toolchain b642703cf9526da1e72c0b6755753b939a9c6b6d
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b642703cf9526da1e72c0b6755753b939a9c6b6d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Super-King-Crimson/lab_rs
[INFO] finished tweaking git repo https://github.com/Super-King-Crimson/lab_rs
[INFO] tweaked toml for git repo https://github.com/Super-King-Crimson/lab_rs written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/Super-King-Crimson/lab_rs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b642703cf9526da1e72c0b6755753b939a9c6b6d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:59a85a07ab18ca8720692f8e61effa1c651d9e2ca591e072c2b212bb91a6b8b5" "/opt/rustwide/cargo-home/bin/cargo" "+b642703cf9526da1e72c0b6755753b939a9c6b6d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8e4bdfc17565ec14181f8620e5266e52c893c91a96209212da243c7f49a9d777
[INFO] running `Command { std: "docker" "start" "-a" "8e4bdfc17565ec14181f8620e5266e52c893c91a96209212da243c7f49a9d777", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8e4bdfc17565ec14181f8620e5266e52c893c91a96209212da243c7f49a9d777", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8e4bdfc17565ec14181f8620e5266e52c893c91a96209212da243c7f49a9d777", kill_on_drop: false }`
[INFO] [stdout] 8e4bdfc17565ec14181f8620e5266e52c893c91a96209212da243c7f49a9d777
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:59a85a07ab18ca8720692f8e61effa1c651d9e2ca591e072c2b212bb91a6b8b5" "/opt/rustwide/cargo-home/bin/cargo" "+b642703cf9526da1e72c0b6755753b939a9c6b6d" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4552f4aa29b343f95855d0bde30535a872ffcc50ab7636cdf0d2b1351ed065c4
[INFO] running `Command { std: "docker" "start" "-a" "4552f4aa29b343f95855d0bde30535a872ffcc50ab7636cdf0d2b1351ed065c4", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.147
[INFO] [stderr]    Compiling getrandom v0.2.10
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling lab_rs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.57s
[INFO] running `Command { std: "docker" "inspect" "4552f4aa29b343f95855d0bde30535a872ffcc50ab7636cdf0d2b1351ed065c4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4552f4aa29b343f95855d0bde30535a872ffcc50ab7636cdf0d2b1351ed065c4", kill_on_drop: false }`
[INFO] [stdout] 4552f4aa29b343f95855d0bde30535a872ffcc50ab7636cdf0d2b1351ed065c4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:59a85a07ab18ca8720692f8e61effa1c651d9e2ca591e072c2b212bb91a6b8b5" "/opt/rustwide/cargo-home/bin/cargo" "+b642703cf9526da1e72c0b6755753b939a9c6b6d" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 75f72ce000020941aa61d7a4181ecad3f17a80bd499f7241594c69fbd31d1424
[INFO] running `Command { std: "docker" "start" "-a" "75f72ce000020941aa61d7a4181ecad3f17a80bd499f7241594c69fbd31d1424", kill_on_drop: false }`
[INFO] [stderr]    Compiling lab_rs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.41s
[INFO] running `Command { std: "docker" "inspect" "75f72ce000020941aa61d7a4181ecad3f17a80bd499f7241594c69fbd31d1424", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "75f72ce000020941aa61d7a4181ecad3f17a80bd499f7241594c69fbd31d1424", kill_on_drop: false }`
[INFO] [stdout] 75f72ce000020941aa61d7a4181ecad3f17a80bd499f7241594c69fbd31d1424
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:59a85a07ab18ca8720692f8e61effa1c651d9e2ca591e072c2b212bb91a6b8b5" "/opt/rustwide/cargo-home/bin/cargo" "+b642703cf9526da1e72c0b6755753b939a9c6b6d" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] f9e83cd10f917540ee4c5a8d2ea9ab633d446051d5993cc2369904bc1f96879c
[INFO] running `Command { std: "docker" "start" "-a" "f9e83cd10f917540ee4c5a8d2ea9ab633d446051d5993cc2369904bc1f96879c", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/lab_rs-6a247d4fd92aeafd)
[INFO] [stdout] 
[INFO] [stdout] running 20 tests
[INFO] [stdout] test hanoi::tests::hanoi_iter_test1 ... ok
[INFO] [stdout] test hanoi::tests::hanoi_recur_test1 ... ok
[INFO] [stdout] test hanoi::tests::hanoi_recur_test4 ... ok
[INFO] [stdout] test showcase::tests::every_other_item_in_first_ten_times_five_test1 ... ok
[INFO] [stdout] test showcase::tests::every_other_item_in_first_ten_times_five_test2 ... ok
[INFO] [stdout] test showcase::tests::to_hash_test ... ok
[INFO] [stdout] test showcase::tests::to_hash_test2 ... ok
[INFO] [stdout] test tortoise_and_hare::tests::tortoise_and_hare_test1 ... ok
[INFO] [stdout] test tortoise_and_hare::tests::tortoise_and_hare_test2 ... ok
[INFO] [stdout] test tortoise_and_hare::tests::tortoise_and_hare_test3 ... ok
[INFO] [stdout] test tortoise_and_hare::tests::tortoise_and_hare_test8 ... ok
[INFO] [stdout] test tortoise_and_hare::tests::tortoise_and_hare_test7 ... ok
[INFO] [stdout] test tortoise_and_hare::tests::tortoise_and_hare_test9 ... ok
[INFO] [stdout] test tortoise_and_hare::tests::tortoise_and_hare_test6 ... ok
[INFO] [stdout] test tortoise_and_hare::tests::tortoise_and_hare_test4 ... ok
[INFO] [stdout] test hanoi::tests::hanoi_iter_test2 - should panic ... ok
[INFO] [stdout] test hanoi::tests::hanoi_iter_test3 - should panic ... ok
[INFO] [stdout] test hanoi::tests::hanoi_recur_test2 - should panic ... ok
[INFO] [stdout] test hanoi::tests::hanoi_recur_test3 - should panic ... ok
[INFO] [stdout] test tortoise_and_hare::tests::tortoise_and_hare_test5 ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 20 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.03s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/lab_rs-dcfdd465b5a8205e)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests lab_rs
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/showcase.rs - showcase::hashmaps::count_chars (line 8) ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/showcase.rs - showcase::hashmaps::count_chars (line 8) stdout ----
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `lab`
[INFO] [stdout]  --> src/showcase.rs:10:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use lab::showcase::hashmaps::count_chars;
[INFO] [stdout]   |     ^^^ use of undeclared crate or module `lab`
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0433`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/showcase.rs - showcase::hashmaps::count_chars (line 8)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.03s
[INFO] [stdout] 
[INFO] [stderr] error: doctest failed, to rerun pass `--doc`
[INFO] running `Command { std: "docker" "inspect" "f9e83cd10f917540ee4c5a8d2ea9ab633d446051d5993cc2369904bc1f96879c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f9e83cd10f917540ee4c5a8d2ea9ab633d446051d5993cc2369904bc1f96879c", kill_on_drop: false }`
[INFO] [stdout] f9e83cd10f917540ee4c5a8d2ea9ab633d446051d5993cc2369904bc1f96879c