[INFO] fetching crate substrs 0.1.0...
[INFO] testing substrs-0.1.0 against 1.60.0 for beta-1.61-1
[INFO] extracting crate substrs 0.1.0 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate substrs 0.1.0 on toolchain 1.60.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate substrs 0.1.0
[INFO] finished tweaking crates.io crate substrs 0.1.0
[INFO] tweaked toml for crates.io crate substrs 0.1.0 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 3e653d68920dd978cff2eeaa95507324ed96dc5c7e10e96fb864431da15d9fc1
[INFO] running `Command { std: "docker" "start" "-a" "3e653d68920dd978cff2eeaa95507324ed96dc5c7e10e96fb864431da15d9fc1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3e653d68920dd978cff2eeaa95507324ed96dc5c7e10e96fb864431da15d9fc1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3e653d68920dd978cff2eeaa95507324ed96dc5c7e10e96fb864431da15d9fc1", kill_on_drop: false }`
[INFO] [stdout] 3e653d68920dd978cff2eeaa95507324ed96dc5c7e10e96fb864431da15d9fc1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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=warn" "-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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 35ec3f3865f534ad2ebafa41728be04dc162ce75e2cdb3842e537c00bf30fe19
[INFO] running `Command { std: "docker" "start" "-a" "35ec3f3865f534ad2ebafa41728be04dc162ce75e2cdb3842e537c00bf30fe19", kill_on_drop: false }`
[INFO] [stderr]    Compiling substrs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.61s
[INFO] running `Command { std: "docker" "inspect" "35ec3f3865f534ad2ebafa41728be04dc162ce75e2cdb3842e537c00bf30fe19", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "35ec3f3865f534ad2ebafa41728be04dc162ce75e2cdb3842e537c00bf30fe19", kill_on_drop: false }`
[INFO] [stdout] 35ec3f3865f534ad2ebafa41728be04dc162ce75e2cdb3842e537c00bf30fe19
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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=warn" "-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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 57b60c0de4b9ce7470e27656782a85a387f8ce88c11984522a8151d1881819d5
[INFO] running `Command { std: "docker" "start" "-a" "57b60c0de4b9ce7470e27656782a85a387f8ce88c11984522a8151d1881819d5", kill_on_drop: false }`
[INFO] [stderr]    Compiling substrs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.11s
[INFO] running `Command { std: "docker" "inspect" "57b60c0de4b9ce7470e27656782a85a387f8ce88c11984522a8151d1881819d5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "57b60c0de4b9ce7470e27656782a85a387f8ce88c11984522a8151d1881819d5", kill_on_drop: false }`
[INFO] [stdout] 57b60c0de4b9ce7470e27656782a85a387f8ce88c11984522a8151d1881819d5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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=warn" "-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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] a69b80c26ba1070b272eb56e893183a229164a2895a4f6b19a0f4261f346370e
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "a69b80c26ba1070b272eb56e893183a229164a2895a4f6b19a0f4261f346370e", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/substrs-a27576acc430eccf)
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test tests::test_last ... ok
[INFO] [stderr]    Doc-tests substrs
[INFO] [stdout] test tests::it_works ... ok
[INFO] [stdout] test tests::test_slice ... ok
[INFO] [stdout] test tests::test_nth ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[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" "a69b80c26ba1070b272eb56e893183a229164a2895a4f6b19a0f4261f346370e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a69b80c26ba1070b272eb56e893183a229164a2895a4f6b19a0f4261f346370e", kill_on_drop: false }`
[INFO] [stdout] a69b80c26ba1070b272eb56e893183a229164a2895a4f6b19a0f4261f346370e