[INFO] fetching crate timeout_io 0.6.0...
[INFO] testing timeout_io-0.6.0 against master#a77da2d454e6caa227a85b16410b95f93495e7e0 for pr-91031
[INFO] extracting crate timeout_io 0.6.0 into /workspace/builds/worker-21/source
[INFO] validating manifest of crates.io crate timeout_io 0.6.0 on toolchain a77da2d454e6caa227a85b16410b95f93495e7e0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate timeout_io 0.6.0
[INFO] finished tweaking crates.io crate timeout_io 0.6.0
[INFO] tweaked toml for crates.io crate timeout_io 0.6.0 written to /workspace/builds/worker-21/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "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-21/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c5fb98dca99f281bf7f749def082445f3c8f6b755bbdad99a04f2d2142e4773d
[INFO] running `Command { std: "docker" "start" "-a" "c5fb98dca99f281bf7f749def082445f3c8f6b755bbdad99a04f2d2142e4773d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c5fb98dca99f281bf7f749def082445f3c8f6b755bbdad99a04f2d2142e4773d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c5fb98dca99f281bf7f749def082445f3c8f6b755bbdad99a04f2d2142e4773d", kill_on_drop: false }`
[INFO] [stdout] c5fb98dca99f281bf7f749def082445f3c8f6b755bbdad99a04f2d2142e4773d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0c77e271b93a25a87b7ac61ffc7cdc70fc2dc94a7f3014906f131e88e64b6ac1
[INFO] running `Command { std: "docker" "start" "-a" "0c77e271b93a25a87b7ac61ffc7cdc70fc2dc94a7f3014906f131e88e64b6ac1", kill_on_drop: false }`
[INFO] [stderr]    Compiling timeout_io v0.6.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.36s
[INFO] running `Command { std: "docker" "inspect" "0c77e271b93a25a87b7ac61ffc7cdc70fc2dc94a7f3014906f131e88e64b6ac1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0c77e271b93a25a87b7ac61ffc7cdc70fc2dc94a7f3014906f131e88e64b6ac1", kill_on_drop: false }`
[INFO] [stdout] 0c77e271b93a25a87b7ac61ffc7cdc70fc2dc94a7f3014906f131e88e64b6ac1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a64e1fb6eaed7510a02583d6227c139f9c21b1e0f1f5133163bb477b1b48e73b
[INFO] running `Command { std: "docker" "start" "-a" "a64e1fb6eaed7510a02583d6227c139f9c21b1e0f1f5133163bb477b1b48e73b", kill_on_drop: false }`
[INFO] [stderr]    Compiling timeout_io v0.6.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> tests/writer.rs:108:19
[INFO] [stdout]     |
[INFO] [stdout] 108 |                 else { panic!(e) }
[INFO] [stdout]     |                               ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_fmt_panics)]` on by default
[INFO] [stdout]     = note: this usage of panic!() is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]     |
[INFO] [stdout] 108 |                 else { panic!("{}", e) }
[INFO] [stdout]     |                               +++++
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]     |
[INFO] [stdout] 108 |                 else { std::panic::panic_any(e) }
[INFO] [stdout]     |                        ~~~~~~~~~~~~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.17s
[INFO] running `Command { std: "docker" "inspect" "a64e1fb6eaed7510a02583d6227c139f9c21b1e0f1f5133163bb477b1b48e73b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a64e1fb6eaed7510a02583d6227c139f9c21b1e0f1f5133163bb477b1b48e73b", kill_on_drop: false }`
[INFO] [stdout] a64e1fb6eaed7510a02583d6227c139f9c21b1e0f1f5133163bb477b1b48e73b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 07894d12fb697f6c2af1cf9a861302c066d7ad38435808f0988c62ca171b5b8a
[INFO] running `Command { std: "docker" "start" "-a" "07894d12fb697f6c2af1cf9a861302c066d7ad38435808f0988c62ca171b5b8a", kill_on_drop: false }`
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> tests/writer.rs:108:19
[INFO] [stderr]     |
[INFO] [stderr] 108 |                 else { panic!(e) }
[INFO] [stderr]     |                               ^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(non_fmt_panics)]` on by default
[INFO] [stderr]     = note: this usage of panic!() is deprecated; it will be a hard error in Rust 2021
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stderr] help: add a "{}" format string to Display the message
[INFO] [stderr]     |
[INFO] [stderr] 108 |                 else { panic!("{}", e) }
[INFO] [stderr]     |                               +++++
[INFO] [stderr] help: or use std::panic::panic_any instead
[INFO] [stderr]     |
[INFO] [stderr] 108 |                 else { std::panic::panic_any(e) }
[INFO] [stderr]     |                        ~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] 
[INFO] [stderr] warning: `timeout_io` (test "writer") generated 1 warning
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/timeout_io-a95d7a3961e121c5)
[INFO] [stdout] 
[INFO] [stderr]      Running tests/acceptor.rs (/opt/rustwide/target/debug/deps/acceptor-77a404557bc23b11)
[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] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test test_accept_ok ... ok
[INFO] [stdout] test test_accept_timeout ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 4.00s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/reader.rs (/opt/rustwide/target/debug/deps/reader-321f9f80001c9d9a)
[INFO] [stdout] 
[INFO] [stdout] running 10 tests
[INFO] [stdout] test test_read_oneshot_err ... ok
[INFO] [stdout] test test_read_exact_err ... ok
[INFO] [stdout] test test_read_exact_ok ... ok
[INFO] [stdout] test test_read_oneshot_ok ... ok
[INFO] [stdout] test test_read_until_not_found ... ok
[INFO] [stdout] test test_read_until_err ... ok
[INFO] [stdout] test test_read_oneshot_timeout ... ok
[INFO] [stdout] test test_read_until_ok ... ok
[INFO] [stdout] test test_read_exact_timeout ... ok
[INFO] [stdout] test test_read_until_timeout ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 10 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 7.01s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/resolver.rs (/opt/rustwide/target/debug/deps/resolver-cd6240ab1b4e0b48)
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test test_dns_resolve_timeout ... ignored
[INFO] [stdout] test test_parse_ip_err ... ok
[INFO] [stdout] test test_parse_ip_ok ... ok
[INFO] [stdout] test test_dns_resolve_ok ... ok
[INFO] [stdout] test test_dns_resolve_invalid ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 1 ignored; 0 measured; 0 filtered out; finished in 0.02s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/writer.rs (/opt/rustwide/target/debug/deps/writer-7f3897f749534542)
[INFO] [stdout] 
[INFO] [stdout] running 7 tests
[INFO] [stdout] test test_write_exact_timeout ... ignored
[INFO] [stdout] test test_write_oneshot_err_broken_pipe ... ignored
[INFO] [stdout] test test_write_oneshot_ok ... ok
[INFO] [stdout] test test_write_oneshot_err ... ok
[INFO] [stdout] test test_write_exact_err ... ok
[INFO] [stdout] test test_write_exact_ok ... ok
[INFO] [stdout] test test_write_oneshot_timeout ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 2 ignored; 0 measured; 0 filtered out; finished in 2.21s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests timeout_io
[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" "07894d12fb697f6c2af1cf9a861302c066d7ad38435808f0988c62ca171b5b8a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "07894d12fb697f6c2af1cf9a861302c066d7ad38435808f0988c62ca171b5b8a", kill_on_drop: false }`
[INFO] [stdout] 07894d12fb697f6c2af1cf9a861302c066d7ad38435808f0988c62ca171b5b8a