[INFO] cloning repository https://github.com/FractalDiane/midi-reader
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/FractalDiane/midi-reader" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFractalDiane%2Fmidi-reader", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFractalDiane%2Fmidi-reader'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 97abfdd7dcddc59cd0649fe825bbdc5bd1e2e2fd
[INFO] checking FractalDiane/midi-reader against master#5518eaa946291f00471af8b254b2a1715f234882 for pr-120393-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFractalDiane%2Fmidi-reader" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/FractalDiane/midi-reader on toolchain 5518eaa946291f00471af8b254b2a1715f234882
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+5518eaa946291f00471af8b254b2a1715f234882" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/FractalDiane/midi-reader
[INFO] finished tweaking git repo https://github.com/FractalDiane/midi-reader
[INFO] tweaked toml for git repo https://github.com/FractalDiane/midi-reader written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/FractalDiane/midi-reader 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" "+5518eaa946291f00471af8b254b2a1715f234882" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded quote v1.0.7
[INFO] [stderr]   Downloaded num-iter v0.1.42
[INFO] [stderr]   Downloaded syn v1.0.54
[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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+5518eaa946291f00471af8b254b2a1715f234882" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ae4716c268cb030a19a773fb758f5419f0e5f9d5868e6eaa4767f541d6dca83f
[INFO] running `Command { std: "docker" "start" "-a" "ae4716c268cb030a19a773fb758f5419f0e5f9d5868e6eaa4767f541d6dca83f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ae4716c268cb030a19a773fb758f5419f0e5f9d5868e6eaa4767f541d6dca83f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ae4716c268cb030a19a773fb758f5419f0e5f9d5868e6eaa4767f541d6dca83f", kill_on_drop: false }`
[INFO] [stdout] ae4716c268cb030a19a773fb758f5419f0e5f9d5868e6eaa4767f541d6dca83f
[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=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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+5518eaa946291f00471af8b254b2a1715f234882" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8a49a5662829eb7c40018ea9d8ad354b79de438ac21c8c4809b1d60bc36d7322
[INFO] running `Command { std: "docker" "start" "-a" "8a49a5662829eb7c40018ea9d8ad354b79de438ac21c8c4809b1d60bc36d7322", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.54
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling num-bigint v0.2.6
[INFO] [stderr]    Compiling num-rational v0.2.4
[INFO] [stderr]    Compiling num-complex v0.2.4
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]     Checking num v0.2.1
[INFO] [stderr]    Compiling num-derive v0.3.3
[INFO] [stderr]     Checking midi_reader v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `cast`
[INFO] [stdout]   --> src/main.rs:17:26
[INFO] [stdout]    |
[INFO] [stdout] 17 | use num::{FromPrimitive, cast};
[INFO] [stdout]    |                          ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `cast`
[INFO] [stdout]   --> src/main.rs:17:26
[INFO] [stdout]    |
[INFO] [stdout] 17 | use num::{FromPrimitive, cast};
[INFO] [stdout]    |                          ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `typ` is assigned to, but never used
[INFO] [stdout]    --> src/main.rs:253:8
[INFO] [stdout]     |
[INFO] [stdout] 253 |             let typ: u8;
[INFO] [stdout]     |                 ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: consider using `_typ` instead
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `typ` is assigned to, but never used
[INFO] [stdout]    --> src/main.rs:253:8
[INFO] [stdout]     |
[INFO] [stdout] 253 |             let typ: u8;
[INFO] [stdout]     |                 ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: consider using `_typ` instead
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `channel` is assigned to, but never used
[INFO] [stdout]    --> src/main.rs:254:8
[INFO] [stdout]     |
[INFO] [stdout] 254 |             let channel: u8;
[INFO] [stdout]     |                 ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: consider using `_channel` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `channel` is assigned to, but never used
[INFO] [stdout]    --> src/main.rs:254:8
[INFO] [stdout]     |
[INFO] [stdout] 254 |             let channel: u8;
[INFO] [stdout]     |                 ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: consider using `_channel` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `typ` is never read
[INFO] [stdout]    --> src/main.rs:259:5
[INFO] [stdout]     |
[INFO] [stdout] 259 |                 typ = high4(*prev_status);
[INFO] [stdout]     |                 ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `typ` is never read
[INFO] [stdout]    --> src/main.rs:259:5
[INFO] [stdout]     |
[INFO] [stdout] 259 |                 typ = high4(*prev_status);
[INFO] [stdout]     |                 ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `channel` is never read
[INFO] [stdout]    --> src/main.rs:260:5
[INFO] [stdout]     |
[INFO] [stdout] 260 |                 channel = low4(*prev_status);
[INFO] [stdout]     |                 ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `channel` is never read
[INFO] [stdout]    --> src/main.rs:260:5
[INFO] [stdout]     |
[INFO] [stdout] 260 |                 channel = low4(*prev_status);
[INFO] [stdout]     |                 ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `typ` is never read
[INFO] [stdout]    --> src/main.rs:265:5
[INFO] [stdout]     |
[INFO] [stdout] 265 |                 typ = high4(status);
[INFO] [stdout]     |                 ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `typ` is never read
[INFO] [stdout]    --> src/main.rs:265:5
[INFO] [stdout]     |
[INFO] [stdout] 265 |                 typ = high4(status);
[INFO] [stdout]     |                 ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `channel` is never read
[INFO] [stdout]    --> src/main.rs:266:5
[INFO] [stdout]     |
[INFO] [stdout] 266 |                 channel = low4(status);
[INFO] [stdout]     |                 ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `channel` is never read
[INFO] [stdout]    --> src/main.rs:266:5
[INFO] [stdout]     |
[INFO] [stdout] 266 |                 channel = low4(status);
[INFO] [stdout]     |                 ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.61s
[INFO] running `Command { std: "docker" "inspect" "8a49a5662829eb7c40018ea9d8ad354b79de438ac21c8c4809b1d60bc36d7322", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8a49a5662829eb7c40018ea9d8ad354b79de438ac21c8c4809b1d60bc36d7322", kill_on_drop: false }`
[INFO] [stdout] 8a49a5662829eb7c40018ea9d8ad354b79de438ac21c8c4809b1d60bc36d7322
