[INFO] fetching crate byteseeker 0.2.1...
[INFO] testing byteseeker-0.2.1 against try#d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2 for pr-86479
[INFO] extracting crate byteseeker 0.2.1 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate byteseeker 0.2.1 on toolchain d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate byteseeker 0.2.1
[INFO] finished tweaking crates.io crate byteseeker 0.2.1
[INFO] tweaked toml for crates.io crate byteseeker 0.2.1 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8414db710a9ebee47ab0f81e88a17d8e55f5fc4bec84ed5a771daff9fbdf55b9
[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" "8414db710a9ebee47ab0f81e88a17d8e55f5fc4bec84ed5a771daff9fbdf55b9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8414db710a9ebee47ab0f81e88a17d8e55f5fc4bec84ed5a771daff9fbdf55b9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8414db710a9ebee47ab0f81e88a17d8e55f5fc4bec84ed5a771daff9fbdf55b9", kill_on_drop: false }`
[INFO] [stdout] 8414db710a9ebee47ab0f81e88a17d8e55f5fc4bec84ed5a771daff9fbdf55b9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2" "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] 845053f61f9aefe50cb6d969a0ee0d684d45246cbd355cf8395a638f929c7718
[INFO] running `Command { std: "docker" "start" "-a" "845053f61f9aefe50cb6d969a0ee0d684d45246cbd355cf8395a638f929c7718", kill_on_drop: false }`
[INFO] [stderr]    Compiling byteseeker v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.22s
[INFO] running `Command { std: "docker" "inspect" "845053f61f9aefe50cb6d969a0ee0d684d45246cbd355cf8395a638f929c7718", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "845053f61f9aefe50cb6d969a0ee0d684d45246cbd355cf8395a638f929c7718", kill_on_drop: false }`
[INFO] [stdout] 845053f61f9aefe50cb6d969a0ee0d684d45246cbd355cf8395a638f929c7718
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2" "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] b4838902ca8006c0167b1d635965e1e804be78f8414279e77c8695745b63c731
[INFO] running `Command { std: "docker" "start" "-a" "b4838902ca8006c0167b1d635965e1e804be78f8414279e77c8695745b63c731", kill_on_drop: false }`
[INFO] [stderr]    Compiling byteseeker v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.96s
[INFO] running `Command { std: "docker" "inspect" "b4838902ca8006c0167b1d635965e1e804be78f8414279e77c8695745b63c731", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b4838902ca8006c0167b1d635965e1e804be78f8414279e77c8695745b63c731", kill_on_drop: false }`
[INFO] [stdout] b4838902ca8006c0167b1d635965e1e804be78f8414279e77c8695745b63c731
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 39380e8fa39d573c52ba752e3401f10f7162007602d5de95f98662749970f73a
[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" "39380e8fa39d573c52ba752e3401f10f7162007602d5de95f98662749970f73a", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/byteseeker-40126b8df782d6b0)
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test seeker::tests::test_match_in_place ... ok
[INFO] [stderr]      Running tests/seeker.rs (/opt/rustwide/target/debug/deps/seeker-e59a26718e90c49e)
[INFO] [stdout] test seeker::tests::test_vecu8 ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 13 tests
[INFO] [stderr]    Doc-tests byteseeker
[INFO] [stdout] test test_seek_back_csn ... ok
[INFO] [stdout] test test_seek_cs0 ... ok
[INFO] [stdout] test test_seek_cs1 ... ok
[INFO] [stdout] test test_seek_cs2 ... ok
[INFO] [stdout] test test_seek_nth ... ok
[INFO] [stdout] test test_seek_back_cs0 ... ok
[INFO] [stdout] test test_seek_cs3 ... ok
[INFO] [stdout] test test_invalid_seeking_bytes ... ok
[INFO] [stdout] test test_seek_back_cs1 ... ok
[INFO] [stdout] test test_seek_back_cs2 ... ok
[INFO] [stdout] test test_seek_nth_back ... ok
[INFO] [stdout] test test_seek_back_cs3 ... ok
[INFO] [stdout] test test_seek_csn ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 13 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 12 tests
[INFO] [stdout] test src/lib.rs - (line 11) - compile ... ok
[INFO] [stdout] test src/seeker.rs - seeker::ByteSeeker::new (line 63) ... ok
[INFO] [stdout] test src/seeker.rs - seeker::ByteSeeker::with_capacity (line 80) ... ok
[INFO] [stdout] test src/seeker.rs - seeker::ByteSeeker::seek_nth_back (line 308) ... ok
[INFO] [stdout] test src/seeker.rs - seeker::ByteSeeker (line 10) ... ok
[INFO] [stdout] test src/seeker.rs - seeker::ByteSeeker::reset (line 151) ... ok
[INFO] [stdout] test src/seeker.rs - seeker::ByteSeeker::len (line 114) ... ok
[INFO] [stdout] test src/seeker.rs - seeker::ByteSeeker::get_mut (line 342) ... ok
[INFO] [stdout] test src/seeker.rs - seeker::ByteSeeker::seek (line 197) ... ok
[INFO] [stdout] test src/seeker.rs - seeker::ByteSeeker::seek_back (line 230) ... ok
[INFO] [stdout] test src/seeker.rs - seeker::ByteSeeker::capacity (line 132) ... ok
[INFO] [stdout] test src/seeker.rs - seeker::ByteSeeker::seek_nth (line 263) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 12 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 1.12s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "39380e8fa39d573c52ba752e3401f10f7162007602d5de95f98662749970f73a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "39380e8fa39d573c52ba752e3401f10f7162007602d5de95f98662749970f73a", kill_on_drop: false }`
[INFO] [stdout] 39380e8fa39d573c52ba752e3401f10f7162007602d5de95f98662749970f73a