[INFO] fetching crate midi-msg 0.8.0...
[INFO] building midi-msg-0.8.0 against try#4987e9d4227139400384ab59296ffee3b0fb1183 for pr-146237-2
[INFO] extracting crate midi-msg 0.8.0 into /workspace/builds/worker-2-tc2/source
[INFO] started tweaking crates.io crate midi-msg 0.8.0
[INFO] removed 0 missing examples
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate midi-msg 0.8.0
[INFO] tweaked toml for crates.io crate midi-msg 0.8.0 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate midi-msg 0.8.0 on toolchain 4987e9d4227139400384ab59296ffee3b0fb1183
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate midi-msg 0.8.0 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" "+4987e9d4227139400384ab59296ffee3b0fb1183" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5f550f7fef4c3551f3978bbedefce2af428b99121cc3420e34a40e21f1bd5a53
[INFO] running `Command { std: "docker" "start" "-a" "5f550f7fef4c3551f3978bbedefce2af428b99121cc3420e34a40e21f1bd5a53", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5f550f7fef4c3551f3978bbedefce2af428b99121cc3420e34a40e21f1bd5a53", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5f550f7fef4c3551f3978bbedefce2af428b99121cc3420e34a40e21f1bd5a53", kill_on_drop: false }`
[INFO] [stdout] 5f550f7fef4c3551f3978bbedefce2af428b99121cc3420e34a40e21f1bd5a53
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ce864416a4d681c646531789ec654d3fd728fc9ba5e56ee3aaf25e3768a72fe0
[INFO] running `Command { std: "docker" "start" "-a" "ce864416a4d681c646531789ec654d3fd728fc9ba5e56ee3aaf25e3768a72fe0", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.79
[INFO] [stderr]    Compiling rustversion v1.0.14
[INFO] [stderr]    Compiling heck v0.4.1
[INFO] [stderr]    Compiling memchr v2.7.2
[INFO] [stderr]    Compiling micromath v1.1.1
[INFO] [stderr]    Compiling log v0.4.21
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling bstr v1.9.1
[INFO] [stderr]    Compiling quote v1.0.35
[INFO] [stderr]    Compiling strum_macros v0.24.3
[INFO] [stderr]    Compiling strum v0.24.1
[INFO] [stderr]    Compiling midi-msg v0.8.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/system_exclusive/machine_control.rs:132:26
[INFO] [stdout]     |
[INFO] [stdout] 132 | pub struct StandardSpeed(f32);
[INFO] [stdout]     |            ------------- ^^^
[INFO] [stdout]     |            |
[INFO] [stdout]     |            field in this struct
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider removing this field
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 7.55s
[INFO] running `Command { std: "docker" "inspect" "ce864416a4d681c646531789ec654d3fd728fc9ba5e56ee3aaf25e3768a72fe0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ce864416a4d681c646531789ec654d3fd728fc9ba5e56ee3aaf25e3768a72fe0", kill_on_drop: false }`
[INFO] [stdout] ce864416a4d681c646531789ec654d3fd728fc9ba5e56ee3aaf25e3768a72fe0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d62f56a29f49e7af037cbd7cbc29760408004f5a93a9491e40cf65ce61b3563f
[INFO] running `Command { std: "docker" "start" "-a" "d62f56a29f49e7af037cbd7cbc29760408004f5a93a9491e40cf65ce61b3563f", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.153
[INFO] [stderr]    Compiling autocfg v1.2.0
[INFO] [stderr]    Compiling memalloc v0.1.0
[INFO] [stderr]    Compiling alsa-sys v0.3.1
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/system_exclusive/machine_control.rs:132:26
[INFO] [stdout]     |
[INFO] [stdout] 132 | pub struct StandardSpeed(f32);
[INFO] [stdout]     |            ------------- ^^^
[INFO] [stdout]     |            |
[INFO] [stdout]     |            field in this struct
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider removing this field
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling memoffset v0.6.5
[INFO] [stderr]    Compiling nix v0.23.2
[INFO] [stderr]    Compiling alsa v0.6.0
[INFO] [stderr]    Compiling midir v0.8.0
[INFO] [stderr]    Compiling midi-msg v0.8.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/system_exclusive/machine_control.rs:132:26
[INFO] [stdout]     |
[INFO] [stdout] 132 | pub struct StandardSpeed(f32);
[INFO] [stdout]     |            ------------- ^^^
[INFO] [stdout]     |            |
[INFO] [stdout]     |            field in this struct
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider removing this field
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 9.42s
[INFO] running `Command { std: "docker" "inspect" "d62f56a29f49e7af037cbd7cbc29760408004f5a93a9491e40cf65ce61b3563f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d62f56a29f49e7af037cbd7cbc29760408004f5a93a9491e40cf65ce61b3563f", kill_on_drop: false }`
[INFO] [stdout] d62f56a29f49e7af037cbd7cbc29760408004f5a93a9491e40cf65ce61b3563f