[INFO] fetching crate rsdiskspeed 0.3.2...
[INFO] testing rsdiskspeed-0.3.2 against 1.91.0 for beta-1.92-2
[INFO] extracting crate rsdiskspeed 0.3.2 into /workspace/builds/worker-0-tc1/source
[INFO] started tweaking crates.io crate rsdiskspeed 0.3.2
[INFO] finished tweaking crates.io crate rsdiskspeed 0.3.2
[INFO] tweaked toml for crates.io crate rsdiskspeed 0.3.2 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate rsdiskspeed 0.3.2 on toolchain 1.91.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.91.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate rsdiskspeed 0.3.2 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.91.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded standback v0.2.10
[INFO] [stderr]   Downloaded proc-macro-hack v0.5.18
[INFO] [stderr]   Downloaded number_prefix v0.3.0
[INFO] [stderr]   Downloaded const_fn v0.4.2
[INFO] [stderr]   Downloaded terminal_size v0.1.13
[INFO] [stderr]   Downloaded console v0.12.0
[INFO] [stderr]   Downloaded ppv-lite86 v0.2.9
[INFO] [stderr]   Downloaded termios v0.3.2
[INFO] [stderr]   Downloaded serde v1.0.116
[INFO] [stderr]   Downloaded time v0.2.20
[INFO] [stderr]   Downloaded indicatif v0.15.0
[INFO] [stderr]   Downloaded serde_derive v1.0.116
[INFO] [stderr]   Downloaded aho-corasick v0.7.13
[INFO] [stderr]   Downloaded proc-macro2 v1.0.21
[INFO] [stderr]   Downloaded syn v1.0.41
[INFO] [stderr]   Downloaded libc v0.2.77
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ce833e2c8c57eb1d6a5c2743cfa1902faf68935e45f26e0f7ba8ef2cb0803ab8
[INFO] running `Command { std: "docker" "start" "-a" "ce833e2c8c57eb1d6a5c2743cfa1902faf68935e45f26e0f7ba8ef2cb0803ab8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ce833e2c8c57eb1d6a5c2743cfa1902faf68935e45f26e0f7ba8ef2cb0803ab8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ce833e2c8c57eb1d6a5c2743cfa1902faf68935e45f26e0f7ba8ef2cb0803ab8", kill_on_drop: false }`
[INFO] [stdout] ce833e2c8c57eb1d6a5c2743cfa1902faf68935e45f26e0f7ba8ef2cb0803ab8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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" "RUSTDOCFLAGS=--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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a40ff6d14037dfe348b7d4107843ecd83746e4c9683fb20eeeb094b13600043e
[INFO] running `Command { std: "docker" "start" "-a" "a40ff6d14037dfe348b7d4107843ecd83746e4c9683fb20eeeb094b13600043e", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.77
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling proc-macro2 v1.0.21
[INFO] [stderr]    Compiling standback v0.2.10
[INFO] [stderr]    Compiling getrandom v0.1.15
[INFO] [stderr]    Compiling syn v1.0.41
[INFO] [stderr]    Compiling regex-syntax v0.6.18
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]    Compiling const_fn v0.4.2
[INFO] [stderr]    Compiling proc-macro-hack v0.5.18
[INFO] [stderr]    Compiling thread_local v1.0.1
[INFO] [stderr]    Compiling humantime v1.3.0
[INFO] [stderr]    Compiling time v0.2.20
[INFO] [stderr]    Compiling ppv-lite86 v0.2.9
[INFO] [stderr]    Compiling termcolor v1.1.0
[INFO] [stderr]    Compiling number_prefix v0.3.0
[INFO] [stderr]    Compiling aho-corasick v0.7.13
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling termios v0.3.2
[INFO] [stderr]    Compiling terminal_size v0.1.13
[INFO] [stderr]    Compiling clap v2.33.3
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling regex v1.3.9
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling console v0.12.0
[INFO] [stderr]    Compiling env_logger v0.7.1
[INFO] [stderr]    Compiling pretty_env_logger v0.4.0
[INFO] [stderr]    Compiling indicatif v0.15.0
[INFO] [stderr]    Compiling time-macros-impl v0.1.1
[INFO] [stderr]    Compiling time-macros v0.1.0
[INFO] [stderr]    Compiling rsdiskspeed v0.3.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/error.rs:22:36
[INFO] [stdout]    |
[INFO] [stdout] 22 |     fn cause(&self) -> Option<&dyn (::std::error::Error)> {
[INFO] [stdout]    |                                    ^                   ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 22 -     fn cause(&self) -> Option<&dyn (::std::error::Error)> {
[INFO] [stdout] 22 +     fn cause(&self) -> Option<&dyn ::std::error::Error> {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 14.00s
[INFO] running `Command { std: "docker" "inspect" "a40ff6d14037dfe348b7d4107843ecd83746e4c9683fb20eeeb094b13600043e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a40ff6d14037dfe348b7d4107843ecd83746e4c9683fb20eeeb094b13600043e", kill_on_drop: false }`
[INFO] [stdout] a40ff6d14037dfe348b7d4107843ecd83746e4c9683fb20eeeb094b13600043e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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" "RUSTDOCFLAGS=--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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d416508c8b6b38e915db12f7407bd537d9de83d979bbe0e01e132fdb5458f0b5
[INFO] running `Command { std: "docker" "start" "-a" "d416508c8b6b38e915db12f7407bd537d9de83d979bbe0e01e132fdb5458f0b5", kill_on_drop: false }`
[INFO] [stderr]    Compiling rsdiskspeed v0.3.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/error.rs:22:36
[INFO] [stdout]    |
[INFO] [stdout] 22 |     fn cause(&self) -> Option<&dyn (::std::error::Error)> {
[INFO] [stdout]    |                                    ^                   ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 22 -     fn cause(&self) -> Option<&dyn (::std::error::Error)> {
[INFO] [stdout] 22 +     fn cause(&self) -> Option<&dyn ::std::error::Error> {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.46s
[INFO] running `Command { std: "docker" "inspect" "d416508c8b6b38e915db12f7407bd537d9de83d979bbe0e01e132fdb5458f0b5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d416508c8b6b38e915db12f7407bd537d9de83d979bbe0e01e132fdb5458f0b5", kill_on_drop: false }`
[INFO] [stdout] d416508c8b6b38e915db12f7407bd537d9de83d979bbe0e01e132fdb5458f0b5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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" "RUSTDOCFLAGS=--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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] c1b45cf0bd67745efbf1aa9e841581780cac71d34b1b9e09685a8cc0dbaa72fa
[INFO] running `Command { std: "docker" "start" "-a" "c1b45cf0bd67745efbf1aa9e841581780cac71d34b1b9e09685a8cc0dbaa72fa", kill_on_drop: false }`
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]   --> src/error.rs:22:36
[INFO] [stderr]    |
[INFO] [stderr] 22 |     fn cause(&self) -> Option<&dyn (::std::error::Error)> {
[INFO] [stderr]    |                                    ^                   ^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr] 22 -     fn cause(&self) -> Option<&dyn (::std::error::Error)> {
[INFO] [stderr] 22 +     fn cause(&self) -> Option<&dyn ::std::error::Error> {
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: `rsdiskspeed` (bin "rsdiskspeed" test) generated 1 warning (run `cargo fix --bin "rsdiskspeed" --tests` to apply 1 suggestion)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.07s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/rsdiskspeed-1024f608613b1b02)
[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" "c1b45cf0bd67745efbf1aa9e841581780cac71d34b1b9e09685a8cc0dbaa72fa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c1b45cf0bd67745efbf1aa9e841581780cac71d34b1b9e09685a8cc0dbaa72fa", kill_on_drop: false }`
[INFO] [stdout] c1b45cf0bd67745efbf1aa9e841581780cac71d34b1b9e09685a8cc0dbaa72fa