[INFO] fetching crate asciibox 0.1.0...
[INFO] testing asciibox-0.1.0 against try#8de4c7234dd9b97c9d76b58671343fdbbc9a433e+target=x86_64-unknown-linux-musl for musl_upgrade_1_2_5_with_libc_patch_0
[INFO] extracting crate asciibox 0.1.0 into /workspace/builds/worker-2-tc1/source
[INFO] started tweaking crates.io crate asciibox 0.1.0
[INFO] finished tweaking crates.io crate asciibox 0.1.0
[INFO] tweaked toml for crates.io crate asciibox 0.1.0 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate asciibox 0.1.0 on toolchain 8de4c7234dd9b97c9d76b58671343fdbbc9a433e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 1 package to latest compatible version
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1dececc4b2f25c430cf55e9335c17ff1094c3b047abf4c72bcdda33bf3f293e1
[INFO] running `Command { std: "docker" "start" "-a" "1dececc4b2f25c430cf55e9335c17ff1094c3b047abf4c72bcdda33bf3f293e1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1dececc4b2f25c430cf55e9335c17ff1094c3b047abf4c72bcdda33bf3f293e1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1dececc4b2f25c430cf55e9335c17ff1094c3b047abf4c72bcdda33bf3f293e1", kill_on_drop: false }`
[INFO] [stdout] 1dececc4b2f25c430cf55e9335c17ff1094c3b047abf4c72bcdda33bf3f293e1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "build" "--frozen" "--message-format=json" "--target" "x86_64-unknown-linux-musl", kill_on_drop: false }`
[INFO] [stdout] fbcd573d0898ac2e50a6f7ac0818f385fa98cd903f2a9ea09f32a93f848f9e7c
[INFO] running `Command { std: "docker" "start" "-a" "fbcd573d0898ac2e50a6f7ac0818f385fa98cd903f2a9ea09f32a93f848f9e7c", kill_on_drop: false }`
[INFO] [stderr]    Compiling asciibox v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `index` is never read
[INFO] [stdout]  --> src/achar.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub struct AsciiChar {
[INFO] [stdout]   |            --------- field in this struct
[INFO] [stdout] 5 |     index: u16,  // char as u16
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `AsciiChar` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.59s
[INFO] running `Command { std: "docker" "inspect" "fbcd573d0898ac2e50a6f7ac0818f385fa98cd903f2a9ea09f32a93f848f9e7c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fbcd573d0898ac2e50a6f7ac0818f385fa98cd903f2a9ea09f32a93f848f9e7c", kill_on_drop: false }`
[INFO] [stdout] fbcd573d0898ac2e50a6f7ac0818f385fa98cd903f2a9ea09f32a93f848f9e7c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "test" "--frozen" "--no-run" "--message-format=json" "--target" "x86_64-unknown-linux-musl", kill_on_drop: false }`
[INFO] [stdout] 0fdb2ed60a82a661f997403235c886e178b126385ed47c18c0273b8db36dd8e7
[INFO] running `Command { std: "docker" "start" "-a" "0fdb2ed60a82a661f997403235c886e178b126385ed47c18c0273b8db36dd8e7", kill_on_drop: false }`
[INFO] [stdout] warning: field `index` is never read
[INFO] [stdout]  --> src/achar.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub struct AsciiChar {
[INFO] [stdout]   |            --------- field in this struct
[INFO] [stdout] 5 |     index: u16,  // char as u16
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `AsciiChar` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling asciibox v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `index` is never read
[INFO] [stdout]  --> src/achar.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub struct AsciiChar {
[INFO] [stdout]   |            --------- field in this struct
[INFO] [stdout] 5 |     index: u16,  // char as u16
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `AsciiChar` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.86s
[INFO] running `Command { std: "docker" "inspect" "0fdb2ed60a82a661f997403235c886e178b126385ed47c18c0273b8db36dd8e7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0fdb2ed60a82a661f997403235c886e178b126385ed47c18c0273b8db36dd8e7", kill_on_drop: false }`
[INFO] [stdout] 0fdb2ed60a82a661f997403235c886e178b126385ed47c18c0273b8db36dd8e7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "test" "--frozen" "--target" "x86_64-unknown-linux-musl", kill_on_drop: false }`
[INFO] [stdout] f9347bb948b5f7018240e18819fd730bb96667fa6b6f300972bb1c39ffa484f4
[INFO] running `Command { std: "docker" "start" "-a" "f9347bb948b5f7018240e18819fd730bb96667fa6b6f300972bb1c39ffa484f4", kill_on_drop: false }`
[INFO] [stderr] warning: field `index` is never read
[INFO] [stdout] 
[INFO] [stderr]  --> src/achar.rs:5:5
[INFO] [stdout] running 1 test
[INFO] [stderr]   |
[INFO] [stdout] test data::tests::sanity_check ... ok
[INFO] [stderr] 4 | pub struct AsciiChar {
[INFO] [stdout] 
[INFO] [stderr]   |            --------- field in this struct
[INFO] [stderr] 5 |     index: u16,  // char as u16
[INFO] [stderr]   |     ^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `AsciiChar` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `asciibox` (lib) generated 1 warning
[INFO] [stderr] warning: `asciibox` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/x86_64-unknown-linux-musl/debug/deps/asciibox-f8256c5395436e37)
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "f9347bb948b5f7018240e18819fd730bb96667fa6b6f300972bb1c39ffa484f4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f9347bb948b5f7018240e18819fd730bb96667fa6b6f300972bb1c39ffa484f4", kill_on_drop: false }`
[INFO] [stdout] f9347bb948b5f7018240e18819fd730bb96667fa6b6f300972bb1c39ffa484f4