[INFO] fetching crate utf8-io 0.4.0...
[INFO] testing utf8-io-0.4.0 against master#99e3aef02079e9c10583638520cd0c134dc3a01d for pr-85530
[INFO] extracting crate utf8-io 0.4.0 into /workspace/builds/worker-13/source
[INFO] validating manifest of crates.io crate utf8-io 0.4.0 on toolchain 99e3aef02079e9c10583638520cd0c134dc3a01d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate utf8-io 0.4.0
[INFO] finished tweaking crates.io crate utf8-io 0.4.0
[INFO] tweaked toml for crates.io crate utf8-io 0.4.0 written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] crate crates.io crate utf8-io 0.4.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6b19e6681c7f34fa40e7ae6772d8a427b9d779f1041ea4a047e8214c8ef2a960
[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" "6b19e6681c7f34fa40e7ae6772d8a427b9d779f1041ea4a047e8214c8ef2a960", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6b19e6681c7f34fa40e7ae6772d8a427b9d779f1041ea4a047e8214c8ef2a960", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6b19e6681c7f34fa40e7ae6772d8a427b9d779f1041ea4a047e8214c8ef2a960", kill_on_drop: false }`
[INFO] [stdout] 6b19e6681c7f34fa40e7ae6772d8a427b9d779f1041ea4a047e8214c8ef2a960
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 16b4ba1716e868c88cd54f6e83d14e9982b3b0a2db6b6e82bfbe5535f913fd98
[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" "16b4ba1716e868c88cd54f6e83d14e9982b3b0a2db6b6e82bfbe5535f913fd98", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.86
[INFO] [stderr]    Compiling duplex v0.3.0
[INFO] [stderr]    Compiling unsafe-io v0.6.0
[INFO] [stderr]    Compiling os_pipe v0.9.2
[INFO] [stderr]    Compiling utf8-io v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.78s
[INFO] running `Command { std: "docker" "inspect" "16b4ba1716e868c88cd54f6e83d14e9982b3b0a2db6b6e82bfbe5535f913fd98", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "16b4ba1716e868c88cd54f6e83d14e9982b3b0a2db6b6e82bfbe5535f913fd98", kill_on_drop: false }`
[INFO] [stdout] 16b4ba1716e868c88cd54f6e83d14e9982b3b0a2db6b6e82bfbe5535f913fd98
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5408a4cec72124d1a066ce4d857e57ce41796eca5961bbd31f5e81784c36b736
[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" "5408a4cec72124d1a066ce4d857e57ce41796eca5961bbd31f5e81784c36b736", kill_on_drop: false }`
[INFO] [stderr]    Compiling layered-io v0.4.0
[INFO] [stderr]    Compiling utf8-io v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.82s
[INFO] running `Command { std: "docker" "inspect" "5408a4cec72124d1a066ce4d857e57ce41796eca5961bbd31f5e81784c36b736", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5408a4cec72124d1a066ce4d857e57ce41796eca5961bbd31f5e81784c36b736", kill_on_drop: false }`
[INFO] [stdout] 5408a4cec72124d1a066ce4d857e57ce41796eca5961bbd31f5e81784c36b736
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "test" "--frozen", 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] 039624c1a27186ef4d53ab95d9f8b9577f63b7d202f3da3cd332d8cc65d84ca2
[INFO] running `Command { std: "docker" "start" "-a" "039624c1a27186ef4d53ab95d9f8b9577f63b7d202f3da3cd332d8cc65d84ca2", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stdout] running 67 tests
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/utf8_io-0ca3b34495de146d)
[INFO] [stdout] test utf8_reader::test_after_six_byte ... ok
[INFO] [stderr]    Doc-tests utf8-io
[INFO] [stdout] test utf8_reader::test_after_valid_four_byte ... ok
[INFO] [stdout] test utf8_reader::test_first_surrogate ... ok
[INFO] [stdout] test utf8_reader::test_first_surrogate_as_four_byte_sequence ... ok
[INFO] [stdout] test utf8_reader::test_five ... ok
[INFO] [stdout] test utf8_reader::test_after_five_byte ... ok
[INFO] [stdout] test utf8_reader::test_fe ... ok
[INFO] [stdout] test copy::test_copy_str ... ok
[INFO] [stdout] test utf8_reader::test_after_valid_three_byte ... ok
[INFO] [stdout] test utf8_reader::test_after_valid_two_byte ... ok
[INFO] [stdout] test utf8_reader::test_cesu_8_surrogate_pair_as_two_four_byte_overlongs ... ok
[INFO] [stdout] test utf8_reader::test_empty_string ... ok
[INFO] [stdout] test utf8_reader::test_five_byte_sequence_highest_two_byte ... ok
[INFO] [stdout] test utf8_reader::test_ff ... ok
[INFO] [stdout] test utf8_reader::test_five_byte_sequence_lowest_four_byte ... ok
[INFO] [stdout] test utf8_reader::test_fe_and_trail ... ok
[INFO] [stdout] test utf8_reader::test_five_byte_sequence_lowest_three_byte ... ok
[INFO] [stdout] test utf8_reader::test_cesu_8_surrogate_pair ... ok
[INFO] [stdout] test utf8_reader::test_embedded_invalid_byte ... ok
[INFO] [stdout] test utf8_reader::test_ff_and_trail ... ok
[INFO] [stdout] test utf8_reader::test_four_byte_lead ... ok
[INFO] [stdout] test utf8_reader::test_five_byte_sequence_lowest_single_byte ... ok
[INFO] [stdout] test utf8_reader::test_four_byte_lead_and_one_trail ... ok
[INFO] [stdout] test utf8_reader::test_invalid_bytes ... ok
[INFO] [stdout] test utf8_reader::test_four_byte_lead_and_two_trails ... ok
[INFO] [stdout] test utf8_reader::test_four ... ok
[INFO] [stdout] test utf8_reader::test_last_surrogate_as_four_byte_sequence ... ok
[INFO] [stdout] test utf8_reader::test_four_byte_sequence_highest_three_byte ... ok
[INFO] [stdout] test utf8_reader::test_longest_five_byte_sequence ... ok
[INFO] [stdout] test utf8_reader::test_last_surrogate ... ok
[INFO] [stdout] test utf8_reader::test_longest_six_byte_sequence ... ok
[INFO] [stdout] test utf8_reader::test_hello_world ... ok
[INFO] [stdout] test utf8_reader::test_one ... ok
[INFO] [stdout] test utf8_reader::test_one_past_unicode ... ok
[INFO] [stdout] test utf8_reader::test_four_byte_sequence_lowest_two_byte ... ok
[INFO] [stdout] test utf8_reader::test_one_past_unicode_as_five_byte_sequence ... ok
[INFO] [stdout] test utf8_reader::test_six ... ok
[INFO] [stdout] test utf8_reader::test_five_byte_sequence_lowest_two_byte ... ok
[INFO] [stdout] test utf8_reader::test_four_byte_sequence_lowest_three_byte ... ok
[INFO] [stdout] test utf8_reader::test_one_past_unicode_as_six_byte_sequence ... ok
[INFO] [stdout] test utf8_reader::test_four_byte_sequence_lowest_single_byte ... ok
[INFO] [stdout] test utf8_reader::test_six_byte_sequence_lowest_three_byte ... ok
[INFO] [stdout] test utf8_reader::test_some_ascii_printable ... ok
[INFO] [stdout] test utf8_reader::test_four_byte_sequence_highest_two_byte ... ok
[INFO] [stdout] test utf8_reader::test_six_byte_sequence_lowest_two_byte ... ok
[INFO] [stdout] test utf8_reader::test_four_byte_sequence_highest_single_byte ... ok
[INFO] [stdout] test utf8_reader::test_three_byte_lead ... ok
[INFO] [stdout] test utf8_reader::test_three_byte_lead_and_one_trail ... ok
[INFO] [stdout] test utf8_reader::test_three_byte_sequence_highest_single_byte ... ok
[INFO] [stdout] test utf8_reader::test_three ... ok
[INFO] [stdout] test utf8_reader::test_three_byte_sequence_lowest_single_byte ... ok
[INFO] [stdout] test utf8_reader::test_two ... ok
[INFO] [stdout] test utf8_reader::test_two_byte_lead ... ok
[INFO] [stdout] test utf8_reader::test_two_byte_sequence_lowest_single_byte ... ok
[INFO] [stdout] test utf8_reader::test_three_byte_sequence_highest_two_byte ... ok
[INFO] [stdout] test utf8_reader::test_three_byte_sequence_lowest_two_byte ... ok
[INFO] [stdout] test utf8_reader::test_two_byte_sequence_highest_single_byte ... ok
[INFO] [stdout] test utf8_reader::test_five_byte_sequence ... ok
[INFO] [stdout] test utf8_reader::test_five_byte_sequence_highest_single_byte ... ok
[INFO] [stdout] test utf8_reader::test_five_byte_sequence_highest_three_byte ... ok
[INFO] [stdout] test utf8_reader::test_seven ... ok
[INFO] [stdout] test utf8_reader::test_six_byte_sequence_highest_three_byte ... ok
[INFO] [stdout] test utf8_reader::test_six_byte_sequence_lowest_four_byte ... ok
[INFO] [stdout] test utf8_reader::test_six_byte_sequence ... ok
[INFO] [stdout] test utf8_reader::test_six_byte_sequence_highest_single_byte ... ok
[INFO] [stdout] test utf8_reader::test_six_byte_sequence_lowest_single_byte ... ok
[INFO] [stdout] test utf8_reader::test_six_byte_sequence_highest_two_byte ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 67 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.02s
[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" "039624c1a27186ef4d53ab95d9f8b9577f63b7d202f3da3cd332d8cc65d84ca2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "039624c1a27186ef4d53ab95d9f8b9577f63b7d202f3da3cd332d8cc65d84ca2", kill_on_drop: false }`
[INFO] [stdout] 039624c1a27186ef4d53ab95d9f8b9577f63b7d202f3da3cd332d8cc65d84ca2