[INFO] cloning repository https://github.com/pirogoeth/unix-named-pipe
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/pirogoeth/unix-named-pipe" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpirogoeth%2Funix-named-pipe", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpirogoeth%2Funix-named-pipe'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 78bd325c82d13451027bc0b5c686f972358b8e9a
[INFO] testing pirogoeth/unix-named-pipe against master#a77da2d454e6caa227a85b16410b95f93495e7e0 for pr-91031
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpirogoeth%2Funix-named-pipe" "/workspace/builds/worker-62/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-62/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/pirogoeth/unix-named-pipe 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 git repo https://github.com/pirogoeth/unix-named-pipe
[INFO] finished tweaking git repo https://github.com/pirogoeth/unix-named-pipe
[INFO] tweaked toml for git repo https://github.com/pirogoeth/unix-named-pipe written to /workspace/builds/worker-62/source/Cargo.toml
[INFO] crate git repo https://github.com/pirogoeth/unix-named-pipe already has a lockfile, it will not be regenerated
[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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-62/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-62/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] 7d9db7c9ecb59685a15077c7f8c7af2c718bda3f009b6c858d5b244f63fbaeed
[INFO] running `Command { std: "docker" "start" "-a" "7d9db7c9ecb59685a15077c7f8c7af2c718bda3f009b6c858d5b244f63fbaeed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7d9db7c9ecb59685a15077c7f8c7af2c718bda3f009b6c858d5b244f63fbaeed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7d9db7c9ecb59685a15077c7f8c7af2c718bda3f009b6c858d5b244f63fbaeed", kill_on_drop: false }`
[INFO] [stdout] 7d9db7c9ecb59685a15077c7f8c7af2c718bda3f009b6c858d5b244f63fbaeed
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-62/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-62/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] a1014459ec7e826f6d25fb27f9de14a5d738b1bc4f3d9c5b9bfc6d74a1f53e8b
[INFO] running `Command { std: "docker" "start" "-a" "a1014459ec7e826f6d25fb27f9de14a5d738b1bc4f3d9c5b9bfc6d74a1f53e8b", kill_on_drop: false }`
[INFO] [stderr]    Compiling errno v0.2.4
[INFO] [stderr]    Compiling unix-named-pipe v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.90s
[INFO] running `Command { std: "docker" "inspect" "a1014459ec7e826f6d25fb27f9de14a5d738b1bc4f3d9c5b9bfc6d74a1f53e8b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a1014459ec7e826f6d25fb27f9de14a5d738b1bc4f3d9c5b9bfc6d74a1f53e8b", kill_on_drop: false }`
[INFO] [stdout] a1014459ec7e826f6d25fb27f9de14a5d738b1bc4f3d9c5b9bfc6d74a1f53e8b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-62/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-62/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] f7808f15e5877344d0574c9a4865af59679ca5fdc55220142a0103a122f0501a
[INFO] running `Command { std: "docker" "start" "-a" "f7808f15e5877344d0574c9a4865af59679ca5fdc55220142a0103a122f0501a", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v0.4.20
[INFO] [stderr]    Compiling ryu v0.2.6
[INFO] [stderr]    Compiling nix v0.11.0
[INFO] [stderr]    Compiling void v1.0.2
[INFO] [stderr]    Compiling rand_core v0.3.0
[INFO] [stderr]    Compiling cfg-if v0.1.5
[INFO] [stderr]    Compiling fs2 v0.4.3
[INFO] [stderr]    Compiling rand_core v0.2.2
[INFO] [stderr]    Compiling rand v0.5.5
[INFO] [stderr]    Compiling quote v0.6.8
[INFO] [stderr]    Compiling syn v0.15.11
[INFO] [stderr]    Compiling ctrlc v3.1.1
[INFO] [stderr]    Compiling mini-internal v0.1.8
[INFO] [stderr]    Compiling miniserde v0.1.8
[INFO] [stderr]    Compiling unix-named-pipe v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> examples/fixsz_server.rs:42:29
[INFO] [stdout]    |
[INFO] [stdout] 42 |                 _ => panic!(format!("error while reading from pipe: {:?}", err)),
[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]    = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout] help: remove the `format!(..)` macro call
[INFO] [stdout]    |
[INFO] [stdout] 42 -                 _ => panic!(format!("error while reading from pipe: {:?}", err)),
[INFO] [stdout] 42 +                 _ => panic!("error while reading from pipe: {:?}", err),
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `numbers`
[INFO] [stdout]   --> examples/varsz_server.rs:23:5
[INFO] [stdout]    |
[INFO] [stdout] 23 |     numbers: Vec<u8>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> examples/varsz_server.rs:50:29
[INFO] [stdout]    |
[INFO] [stdout] 50 |                 _ => panic!(format!("error while reading from pipe: {:?}", err)),
[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]    = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout] help: remove the `format!(..)` macro call
[INFO] [stdout]    |
[INFO] [stdout] 50 -                 _ => panic!(format!("error while reading from pipe: {:?}", err)),
[INFO] [stdout] 50 +                 _ => panic!("error while reading from pipe: {:?}", err),
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 36.68s
[INFO] running `Command { std: "docker" "inspect" "f7808f15e5877344d0574c9a4865af59679ca5fdc55220142a0103a122f0501a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f7808f15e5877344d0574c9a4865af59679ca5fdc55220142a0103a122f0501a", kill_on_drop: false }`
[INFO] [stdout] f7808f15e5877344d0574c9a4865af59679ca5fdc55220142a0103a122f0501a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-62/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-62/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] 2f0a3be76897539a2795e641e49f79f21f0b91f5a257e6ee1bd893fed52d0acd
[INFO] running `Command { std: "docker" "start" "-a" "2f0a3be76897539a2795e641e49f79f21f0b91f5a257e6ee1bd893fed52d0acd", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stdout] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stdout] running 6 tests
[INFO] [stderr]   --> examples/fixsz_server.rs:42:29
[INFO] [stderr]    |
[INFO] [stderr] 42 |                 _ => panic!(format!("error while reading from pipe: {:?}", err)),
[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]    = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stderr] help: remove the `format!(..)` macro call
[INFO] [stderr]    |
[INFO] [stderr] 42 -                 _ => panic!(format!("error while reading from pipe: {:?}", err)),
[INFO] [stderr] 42 +                 _ => panic!("error while reading from pipe: {:?}", err),
[INFO] [stderr]    | 
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `numbers`
[INFO] [stderr]   --> examples/varsz_server.rs:23:5
[INFO] [stderr]    |
[INFO] [stderr] 23 |     numbers: Vec<u8>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]   --> examples/varsz_server.rs:50:29
[INFO] [stderr]    |
[INFO] [stderr] 50 |                 _ => panic!(format!("error while reading from pipe: {:?}", err)),
[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]    = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stderr] help: remove the `format!(..)` macro call
[INFO] [stderr]    |
[INFO] [stderr] 50 -                 _ => panic!(format!("error while reading from pipe: {:?}", err)),
[INFO] [stderr] 50 +                 _ => panic!("error while reading from pipe: {:?}", err),
[INFO] [stderr]    | 
[INFO] [stderr] 
[INFO] [stderr] warning: `unix-named-pipe` (example "fixsz_server") generated 1 warning
[INFO] [stderr] warning: `unix-named-pipe` (example "varsz_server") generated 2 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.62s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/unix_named_pipe-b99686d7e1075c46)
[INFO] [stdout] test ext::tests::is_not_fifo ... ok
[INFO] [stdout] test ext::tests::is_fifo ... ok
[INFO] [stdout] test tests::create_pipe_enoent ... ok
[INFO] [stdout] test tests::create_pipe_eexists ... ok
[INFO] [stdout] test tests::create_new_pipe ... ok
[INFO] [stdout] test tests::open_pipe_read ... ok
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests unix-named-pipe
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.02s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test src/lib.rs - create (line 32) ... ok
[INFO] [stdout] test src/lib.rs - create (line 22) ... ok
[INFO] [stdout] test src/lib.rs - open_read (line 83) ... ok
[INFO] [stdout] test src/ext.rs - ext::fs::File::is_fifo (line 19) ... ok
[INFO] [stdout] test src/lib.rs - open_write (line 103) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.92s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "2f0a3be76897539a2795e641e49f79f21f0b91f5a257e6ee1bd893fed52d0acd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2f0a3be76897539a2795e641e49f79f21f0b91f5a257e6ee1bd893fed52d0acd", kill_on_drop: false }`
[INFO] [stdout] 2f0a3be76897539a2795e641e49f79f21f0b91f5a257e6ee1bd893fed52d0acd