[INFO] fetching crate backpack 0.1.0...
[INFO] testing backpack-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 backpack 0.1.0 into /workspace/builds/worker-6-tc1/source
[INFO] started tweaking crates.io crate backpack 0.1.0
[INFO] finished tweaking crates.io crate backpack 0.1.0
[INFO] tweaked toml for crates.io crate backpack 0.1.0 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate backpack 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] 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-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 2ead76ae8bc937c1be9571ed8447ba09e88f7b7b2f3aef01a8eb4a491bb91ad9
[INFO] running `Command { std: "docker" "start" "-a" "2ead76ae8bc937c1be9571ed8447ba09e88f7b7b2f3aef01a8eb4a491bb91ad9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2ead76ae8bc937c1be9571ed8447ba09e88f7b7b2f3aef01a8eb4a491bb91ad9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2ead76ae8bc937c1be9571ed8447ba09e88f7b7b2f3aef01a8eb4a491bb91ad9", kill_on_drop: false }`
[INFO] [stdout] 2ead76ae8bc937c1be9571ed8447ba09e88f7b7b2f3aef01a8eb4a491bb91ad9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 935994efa95ac3a2ac1f801e9ee6a6df72f99bfe7f2f0a7935d55f849dea01b6
[INFO] running `Command { std: "docker" "start" "-a" "935994efa95ac3a2ac1f801e9ee6a6df72f99bfe7f2f0a7935d55f849dea01b6", kill_on_drop: false }`
[INFO] [stderr]    Compiling backpack v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: enum `File` is never used
[INFO] [stdout]  --> src/file.rs:2:10
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub enum File {
[INFO] [stdout]   |          ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.07s
[INFO] running `Command { std: "docker" "inspect" "935994efa95ac3a2ac1f801e9ee6a6df72f99bfe7f2f0a7935d55f849dea01b6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "935994efa95ac3a2ac1f801e9ee6a6df72f99bfe7f2f0a7935d55f849dea01b6", kill_on_drop: false }`
[INFO] [stdout] 935994efa95ac3a2ac1f801e9ee6a6df72f99bfe7f2f0a7935d55f849dea01b6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 55747dbeacd6224271498e6adc6e27699aa285cbad7bec1a7d2b11e25a88e0f8
[INFO] running `Command { std: "docker" "start" "-a" "55747dbeacd6224271498e6adc6e27699aa285cbad7bec1a7d2b11e25a88e0f8", kill_on_drop: false }`
[INFO] [stderr]    Compiling backpack v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: enum `File` is never used
[INFO] [stdout]  --> src/file.rs:2:10
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub enum File {
[INFO] [stdout]   |          ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `File` is never used
[INFO] [stdout]  --> src/file.rs:2:10
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub enum File {
[INFO] [stdout]   |          ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.38s
[INFO] running `Command { std: "docker" "inspect" "55747dbeacd6224271498e6adc6e27699aa285cbad7bec1a7d2b11e25a88e0f8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "55747dbeacd6224271498e6adc6e27699aa285cbad7bec1a7d2b11e25a88e0f8", kill_on_drop: false }`
[INFO] [stdout] 55747dbeacd6224271498e6adc6e27699aa285cbad7bec1a7d2b11e25a88e0f8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] d016dabaacf803461b5fbd2a2b2a267bdc19acbc25507fab0c99488286eea7df
[INFO] running `Command { std: "docker" "start" "-a" "d016dabaacf803461b5fbd2a2b2a267bdc19acbc25507fab0c99488286eea7df", kill_on_drop: false }`
[INFO] [stderr] warning: enum `File` is never used
[INFO] [stderr]  --> src/file.rs:2:10
[INFO] [stderr]   |
[INFO] [stderr] 2 | pub enum File {
[INFO] [stderr]   |          ^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `backpack` (lib) generated 1 warning
[INFO] [stderr] warning: `backpack` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/x86_64-unknown-linux-musl/debug/deps/backpack-3c2c01356c4e5dd4)
[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" "d016dabaacf803461b5fbd2a2b2a267bdc19acbc25507fab0c99488286eea7df", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d016dabaacf803461b5fbd2a2b2a267bdc19acbc25507fab0c99488286eea7df", kill_on_drop: false }`
[INFO] [stdout] d016dabaacf803461b5fbd2a2b2a267bdc19acbc25507fab0c99488286eea7df