[INFO] cloning repository https://github.com/sladecek/rust-zebra
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/sladecek/rust-zebra" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsladecek%2Frust-zebra", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsladecek%2Frust-zebra'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] af0ba39de409ae493f77a15a14872269ec32a6de
[INFO] testing sladecek/rust-zebra against master#d7bd9cd469ff6871420007f091ef52fc32d2ca99 for pr-121417
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsladecek%2Frust-zebra" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/sladecek/rust-zebra on toolchain d7bd9cd469ff6871420007f091ef52fc32d2ca99
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d7bd9cd469ff6871420007f091ef52fc32d2ca99" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/sladecek/rust-zebra
[INFO] finished tweaking git repo https://github.com/sladecek/rust-zebra
[INFO] tweaked toml for git repo https://github.com/sladecek/rust-zebra written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/sladecek/rust-zebra 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" "+d7bd9cd469ff6871420007f091ef52fc32d2ca99" "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 sladecek/rust-zebra against try#393ef12c970fbc7f294cd96c35cb76f9591bc1d6 for pr-121417
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsladecek%2Frust-zebra" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/sladecek/rust-zebra on toolchain 393ef12c970fbc7f294cd96c35cb76f9591bc1d6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+393ef12c970fbc7f294cd96c35cb76f9591bc1d6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/sladecek/rust-zebra
[INFO] finished tweaking git repo https://github.com/sladecek/rust-zebra
[INFO] tweaked toml for git repo https://github.com/sladecek/rust-zebra written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/sladecek/rust-zebra 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" "+393ef12c970fbc7f294cd96c35cb76f9591bc1d6" "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 sladecek/rust-zebra against try#393ef12c970fbc7f294cd96c35cb76f9591bc1d6 for pr-121417
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsladecek%2Frust-zebra" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/sladecek/rust-zebra on toolchain 393ef12c970fbc7f294cd96c35cb76f9591bc1d6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+393ef12c970fbc7f294cd96c35cb76f9591bc1d6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/sladecek/rust-zebra
[INFO] finished tweaking git repo https://github.com/sladecek/rust-zebra
[INFO] tweaked toml for git repo https://github.com/sladecek/rust-zebra written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/sladecek/rust-zebra 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" "+393ef12c970fbc7f294cd96c35cb76f9591bc1d6" "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-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+393ef12c970fbc7f294cd96c35cb76f9591bc1d6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 89fe891851056df5767fb4f1067c28dce9c04e3fbe7254cb2558167923b45b19
[INFO] running `Command { std: "docker" "start" "-a" "89fe891851056df5767fb4f1067c28dce9c04e3fbe7254cb2558167923b45b19", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "89fe891851056df5767fb4f1067c28dce9c04e3fbe7254cb2558167923b45b19", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "89fe891851056df5767fb4f1067c28dce9c04e3fbe7254cb2558167923b45b19", kill_on_drop: false }`
[INFO] [stdout] 89fe891851056df5767fb4f1067c28dce9c04e3fbe7254cb2558167923b45b19
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+393ef12c970fbc7f294cd96c35cb76f9591bc1d6" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f3fa43ff66c2f61ff04f83779922eaa9a36a734fd92ff74ad03d3311bdee4c3e
[INFO] running `Command { std: "docker" "start" "-a" "f3fa43ff66c2f61ff04f83779922eaa9a36a734fd92ff74ad03d3311bdee4c3e", kill_on_drop: false }`
[INFO] [stderr]    Compiling radium v0.7.0
[INFO] [stderr]    Compiling tap v1.0.1
[INFO] [stderr]    Compiling funty v2.0.0
[INFO] [stderr]    Compiling wyz v0.5.0
[INFO] [stderr]    Compiling bitvec v1.0.1
[INFO] [stderr]    Compiling rust8queens v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `Vec` is imported redundantly
[INFO] [stdout]  --> src/backtracking.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::vec::Vec;
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout]  --> /rustc/393ef12c970fbc7f294cd96c35cb76f9591bc1d6/library/std/src/prelude/mod.rs:125:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `Vec` is already defined here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Clone` is imported redundantly
[INFO] [stdout]  --> src/zebra.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::clone::Clone;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]  --> /rustc/393ef12c970fbc7f294cd96c35cb76f9591bc1d6/library/std/src/prelude/mod.rs:125:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `Clone` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.94s
[INFO] running `Command { std: "docker" "inspect" "f3fa43ff66c2f61ff04f83779922eaa9a36a734fd92ff74ad03d3311bdee4c3e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f3fa43ff66c2f61ff04f83779922eaa9a36a734fd92ff74ad03d3311bdee4c3e", kill_on_drop: false }`
[INFO] [stdout] f3fa43ff66c2f61ff04f83779922eaa9a36a734fd92ff74ad03d3311bdee4c3e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+393ef12c970fbc7f294cd96c35cb76f9591bc1d6" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] af7b02fb3f9a0abadd08c24f5eabca29d6ae3da9bf6360fc34acaf58b963df77
[INFO] running `Command { std: "docker" "start" "-a" "af7b02fb3f9a0abadd08c24f5eabca29d6ae3da9bf6360fc34acaf58b963df77", kill_on_drop: false }`
[INFO] [stdout] warning: the item `Vec` is imported redundantly
[INFO] [stdout]  --> src/backtracking.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::vec::Vec;
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout]  --> /rustc/393ef12c970fbc7f294cd96c35cb76f9591bc1d6/library/std/src/prelude/mod.rs:125:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `Vec` is already defined here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling rust8queens v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `Clone` is imported redundantly
[INFO] [stdout]  --> src/zebra.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::clone::Clone;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]  --> /rustc/393ef12c970fbc7f294cd96c35cb76f9591bc1d6/library/std/src/prelude/mod.rs:125:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `Clone` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Vec` is imported redundantly
[INFO] [stdout]  --> src/backtracking.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::vec::Vec;
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout]  --> /rustc/393ef12c970fbc7f294cd96c35cb76f9591bc1d6/library/std/src/prelude/mod.rs:125:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `Vec` is already defined here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Clone` is imported redundantly
[INFO] [stdout]  --> src/zebra.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::clone::Clone;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]  --> /rustc/393ef12c970fbc7f294cd96c35cb76f9591bc1d6/library/std/src/prelude/mod.rs:125:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `Clone` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.42s
[INFO] running `Command { std: "docker" "inspect" "af7b02fb3f9a0abadd08c24f5eabca29d6ae3da9bf6360fc34acaf58b963df77", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "af7b02fb3f9a0abadd08c24f5eabca29d6ae3da9bf6360fc34acaf58b963df77", kill_on_drop: false }`
[INFO] [stdout] af7b02fb3f9a0abadd08c24f5eabca29d6ae3da9bf6360fc34acaf58b963df77
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+393ef12c970fbc7f294cd96c35cb76f9591bc1d6" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 112d2ec785643e8013d012cd570c6ea1966c1975f20824cf174611aa6e399587
[INFO] running `Command { std: "docker" "start" "-a" "112d2ec785643e8013d012cd570c6ea1966c1975f20824cf174611aa6e399587", kill_on_drop: false }`
[INFO] [stderr] warning: the item `Vec` is imported redundantly
[INFO] [stderr]  --> src/backtracking.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::vec::Vec;
[INFO] [stderr]   |     ^^^^^^^^^^^^^
[INFO] [stderr]  --> /rustc/393ef12c970fbc7f294cd96c35cb76f9591bc1d6/library/std/src/prelude/mod.rs:125:13
[INFO] [stderr]   |
[INFO] [stderr]   = note: the item `Vec` is already defined here
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: the item `Clone` is imported redundantly
[INFO] [stderr]  --> src/zebra.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::clone::Clone;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr]  --> /rustc/393ef12c970fbc7f294cd96c35cb76f9591bc1d6/library/std/src/prelude/mod.rs:125:13
[INFO] [stderr]   |
[INFO] [stderr]   = note: the item `Clone` is already defined here
[INFO] [stderr] 
[INFO] [stderr] warning: `rust8queens` (lib) generated 2 warnings
[INFO] [stderr] warning: `rust8queens` (lib test) generated 2 warnings (2 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/rust8queens-076cf3898c350c9f)
[INFO] [stdout] 
[INFO] [stdout] running 8 tests
[INFO] [stdout] test myzebra::test_distance ... ok
[INFO] [stdout] test zebra::tests::test_split ... ok
[INFO] [stdout] test zebra::tests::test_zebra_builder ... ok
[INFO] [stdout] test zebra::tests::test_apply_permutations ... ok
[INFO] [stdout] test zebra::tests::test_apply_predicates ... ok
[INFO] [stdout] test zebra::tests::test_state_is_determined ... ok
[INFO] [stdout] test zebra::tests::test_state_is_solution ... ok
[INFO] [stdout] test zebra::tests::test_apply_facts ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 8 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.04s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/bin/main.rs (/opt/rustwide/target/debug/deps/main-665b38bd90d890d1)
[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 rust8queens
[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] running `Command { std: "docker" "inspect" "112d2ec785643e8013d012cd570c6ea1966c1975f20824cf174611aa6e399587", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "112d2ec785643e8013d012cd570c6ea1966c1975f20824cf174611aa6e399587", kill_on_drop: false }`
[INFO] [stdout] 112d2ec785643e8013d012cd570c6ea1966c1975f20824cf174611aa6e399587