[INFO] fetching crate pomy 0.1.1...
[INFO] building pomy-0.1.1 against master#ad85bc524b1ad696e42061ad8338d382dffbdbe5 for pr-146237-1
[INFO] extracting crate pomy 0.1.1 into /workspace/builds/worker-4-tc1/source
[INFO] started tweaking crates.io crate pomy 0.1.1
[INFO] finished tweaking crates.io crate pomy 0.1.1
[INFO] tweaked toml for crates.io crate pomy 0.1.1 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate pomy 0.1.1 on toolchain ad85bc524b1ad696e42061ad8338d382dffbdbe5
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate pomy 0.1.1 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" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded arrayvec v0.5.1
[INFO] [stderr]   Downloaded rustversion v1.0.2
[INFO] [stderr]   Downloaded hound v3.4.0
[INFO] [stderr]   Downloaded minimp3 v0.3.3
[INFO] [stderr]   Downloaded lewton v0.9.4
[INFO] [stderr]   Downloaded failure_derive v0.1.6
[INFO] [stderr]   Downloaded dirs-sys v0.3.4
[INFO] [stderr]   Downloaded arrayref v0.3.5
[INFO] [stderr]   Downloaded structopt-derive v0.4.2
[INFO] [stderr]   Downloaded constant_time_eq v0.1.4
[INFO] [stderr]   Downloaded ctrlc v3.1.4
[INFO] [stderr]   Downloaded blake2b_simd v0.5.9
[INFO] [stderr]   Downloaded failure v0.1.6
[INFO] [stderr]   Downloaded ogg v0.7.0
[INFO] [stderr]   Downloaded claxon v0.4.2
[INFO] [stderr]   Downloaded backtrace v0.3.40
[INFO] [stderr]   Downloaded chrono v0.4.10
[INFO] [stderr]   Downloaded nix v0.17.0
[INFO] [stderr]   Downloaded rust-argon2 v0.5.1
[INFO] [stderr]   Downloaded rustc-demangle v0.1.16
[INFO] [stderr]   Downloaded synstructure v0.12.3
[INFO] [stderr]   Downloaded redox_users v0.3.1
[INFO] [stderr]   Downloaded structopt v0.3.9
[INFO] [stderr]   Downloaded proc-macro-error v0.4.9
[INFO] [stderr]   Downloaded proc-macro-error-attr v0.4.9
[INFO] [stderr]   Downloaded backtrace-sys v0.1.32
[INFO] [stderr]   Downloaded rodio v0.10.0
[INFO] [stderr]   Downloaded minimp3-sys v0.3.1
[INFO] [stderr]   Downloaded cpal v0.10.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d3b59e242aa577b4e66537cc8450911b9b54ed49bba23d5d8a1dcf45e7d49c91
[INFO] running `Command { std: "docker" "start" "-a" "d3b59e242aa577b4e66537cc8450911b9b54ed49bba23d5d8a1dcf45e7d49c91", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d3b59e242aa577b4e66537cc8450911b9b54ed49bba23d5d8a1dcf45e7d49c91", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d3b59e242aa577b4e66537cc8450911b9b54ed49bba23d5d8a1dcf45e7d49c91", kill_on_drop: false }`
[INFO] [stdout] d3b59e242aa577b4e66537cc8450911b9b54ed49bba23d5d8a1dcf45e7d49c91
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c278df0c0830e951545370143a6776fdd3744295fdd4e6eb37786fecf744561c
[INFO] running `Command { std: "docker" "start" "-a" "c278df0c0830e951545370143a6776fdd3744295fdd4e6eb37786fecf744561c", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.66
[INFO] [stderr]    Compiling proc-macro2 v1.0.6
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling syn v1.0.11
[INFO] [stderr]    Compiling cc v1.0.48
[INFO] [stderr]    Compiling rustversion v1.0.2
[INFO] [stderr]    Compiling pkg-config v0.3.17
[INFO] [stderr]    Compiling failure_derive v0.1.6
[INFO] [stderr]    Compiling byteorder v1.3.2
[INFO] [stderr]    Compiling rustc-demangle v0.1.16
[INFO] [stderr]    Compiling cpal v0.10.0
[INFO] [stderr]    Compiling nix v0.17.0
[INFO] [stderr]    Compiling num-traits v0.2.10
[INFO] [stderr]    Compiling num-integer v0.1.41
[INFO] [stderr]    Compiling unicode-width v0.1.7
[INFO] [stderr]    Compiling unicode-segmentation v1.6.0
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling smallvec v0.6.13
[INFO] [stderr]    Compiling ansi_term v0.11.0
[INFO] [stderr]    Compiling void v1.0.2
[INFO] [stderr]    Compiling vec_map v0.8.1
[INFO] [stderr]    Compiling strsim v0.8.0
[INFO] [stderr]    Compiling hound v3.4.0
[INFO] [stderr]    Compiling claxon v0.4.2
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]    Compiling alsa-sys v0.1.2
[INFO] [stderr]    Compiling ogg v0.7.0
[INFO] [stderr]    Compiling backtrace-sys v0.1.32
[INFO] [stderr]    Compiling minimp3-sys v0.3.1
[INFO] [stderr]    Compiling lewton v0.9.4
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]    Compiling slice-deque v0.2.4
[INFO] [stderr]    Compiling atty v0.2.13
[INFO] [stderr]    Compiling time v0.1.42
[INFO] [stderr]    Compiling dirs-sys v0.3.4
[INFO] [stderr]    Compiling clap v2.33.0
[INFO] [stderr]    Compiling dirs v2.0.2
[INFO] [stderr]    Compiling backtrace v0.3.40
[INFO] [stderr]    Compiling chrono v0.4.10
[INFO] [stderr]    Compiling minimp3 v0.3.3
[INFO] [stderr]    Compiling ctrlc v3.1.4
[INFO] [stderr]    Compiling synstructure v0.12.3
[INFO] [stderr]    Compiling syn-mid v0.5.0
[INFO] [stderr]    Compiling proc-macro-error v0.4.9
[INFO] [stderr]    Compiling proc-macro-error-attr v0.4.9
[INFO] [stderr]    Compiling failure v0.1.6
[INFO] [stderr]    Compiling rodio v0.10.0
[INFO] [stderr]    Compiling structopt-derive v0.4.2
[INFO] [stderr]    Compiling structopt v0.3.9
[INFO] [stderr]    Compiling pomy v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `task_name` is never read
[INFO] [stdout]   --> src/main.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | struct Cli {
[INFO] [stdout]    |        --- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 14 |     task_name: Option<String>,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Cli` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[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 12.13s
[INFO] running `Command { std: "docker" "inspect" "c278df0c0830e951545370143a6776fdd3744295fdd4e6eb37786fecf744561c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c278df0c0830e951545370143a6776fdd3744295fdd4e6eb37786fecf744561c", kill_on_drop: false }`
[INFO] [stdout] c278df0c0830e951545370143a6776fdd3744295fdd4e6eb37786fecf744561c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c3eedc3c405396ab3b3a658256dc510ae16bbfd785d231682c6503d772eb5e1e
[INFO] running `Command { std: "docker" "start" "-a" "c3eedc3c405396ab3b3a658256dc510ae16bbfd785d231682c6503d772eb5e1e", kill_on_drop: false }`
[INFO] [stderr]    Compiling pomy v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `task_name` is never read
[INFO] [stdout]   --> src/main.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | struct Cli {
[INFO] [stdout]    |        --- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 14 |     task_name: Option<String>,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Cli` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[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 0.40s
[INFO] running `Command { std: "docker" "inspect" "c3eedc3c405396ab3b3a658256dc510ae16bbfd785d231682c6503d772eb5e1e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c3eedc3c405396ab3b3a658256dc510ae16bbfd785d231682c6503d772eb5e1e", kill_on_drop: false }`
[INFO] [stdout] c3eedc3c405396ab3b3a658256dc510ae16bbfd785d231682c6503d772eb5e1e