[INFO] fetching crate rsdiskspeed 0.3.2...
[INFO] testing rsdiskspeed-0.3.2 against try#c2e32f1c9652b13ed99608599c1e855462f421f3 for pr-146098-8
[INFO] extracting crate rsdiskspeed 0.3.2 into /workspace/builds/worker-5-tc2/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-5-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate rsdiskspeed 0.3.2 on toolchain c2e32f1c9652b13ed99608599c1e855462f421f3
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "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" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c1ef44d5dd2590ec46c806204c80dc62c22416c170b09ed5bb5fe5b166418c53
[INFO] running `Command { std: "docker" "start" "-a" "c1ef44d5dd2590ec46c806204c80dc62c22416c170b09ed5bb5fe5b166418c53", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c1ef44d5dd2590ec46c806204c80dc62c22416c170b09ed5bb5fe5b166418c53", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c1ef44d5dd2590ec46c806204c80dc62c22416c170b09ed5bb5fe5b166418c53", kill_on_drop: false }`
[INFO] [stdout] c1ef44d5dd2590ec46c806204c80dc62c22416c170b09ed5bb5fe5b166418c53
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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" "RUSTDOCFLAGS=--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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 18c27607e90c6a3d95f1f5e028dde28e43b51d4c9169be80e9cc4dac6a6ee990
[INFO] running `Command { std: "docker" "start" "-a" "18c27607e90c6a3d95f1f5e028dde28e43b51d4c9169be80e9cc4dac6a6ee990", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.77
[INFO] [stderr]    Compiling version_check v0.9.2
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling proc-macro2 v1.0.21
[INFO] [stderr]    Compiling syn v1.0.41
[INFO] [stderr]    Compiling getrandom v0.1.15
[INFO] [stderr]    Compiling regex-syntax v0.6.18
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]    Compiling unicode-width v0.1.8
[INFO] [stderr]    Compiling bitflags v1.2.1
[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 ppv-lite86 v0.2.9
[INFO] [stderr]    Compiling termcolor v1.1.0
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling ansi_term v0.11.0
[INFO] [stderr]    Compiling standback v0.2.10
[INFO] [stderr]    Compiling time v0.2.20
[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 rand_chacha v0.2.2
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling regex v1.3.9
[INFO] [stderr]    Compiling env_logger v0.7.1
[INFO] [stderr]    Compiling console v0.12.0
[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 9.87s
[INFO] running `Command { std: "docker" "inspect" "18c27607e90c6a3d95f1f5e028dde28e43b51d4c9169be80e9cc4dac6a6ee990", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "18c27607e90c6a3d95f1f5e028dde28e43b51d4c9169be80e9cc4dac6a6ee990", kill_on_drop: false }`
[INFO] [stdout] 18c27607e90c6a3d95f1f5e028dde28e43b51d4c9169be80e9cc4dac6a6ee990
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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" "RUSTDOCFLAGS=--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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2e95a49e2762087822bd6c79955d0f777feeffc3c65bb23b45f3d338452cbd2c
[INFO] running `Command { std: "docker" "start" "-a" "2e95a49e2762087822bd6c79955d0f777feeffc3c65bb23b45f3d338452cbd2c", 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 0.32s
[INFO] running `Command { std: "docker" "inspect" "2e95a49e2762087822bd6c79955d0f777feeffc3c65bb23b45f3d338452cbd2c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2e95a49e2762087822bd6c79955d0f777feeffc3c65bb23b45f3d338452cbd2c", kill_on_drop: false }`
[INFO] [stdout] 2e95a49e2762087822bd6c79955d0f777feeffc3c65bb23b45f3d338452cbd2c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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" "RUSTDOCFLAGS=--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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] e9cf3b5e8f45ee55894931cabe83f870b8869148245685196116156725b5dd2b
[INFO] running `Command { std: "docker" "start" "-a" "e9cf3b5e8f45ee55894931cabe83f870b8869148245685196116156725b5dd2b", 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" -p rsdiskspeed --tests` to apply 1 suggestion)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.10s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/rsdiskspeed-1b8e72e1b93bffb7)
[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" "e9cf3b5e8f45ee55894931cabe83f870b8869148245685196116156725b5dd2b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e9cf3b5e8f45ee55894931cabe83f870b8869148245685196116156725b5dd2b", kill_on_drop: false }`
[INFO] [stdout] e9cf3b5e8f45ee55894931cabe83f870b8869148245685196116156725b5dd2b