[INFO] fetching crate checkdigit 0.1.0...
[INFO] testing checkdigit-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 checkdigit 0.1.0 into /workspace/builds/worker-7-tc1/source
[INFO] started tweaking crates.io crate checkdigit 0.1.0
[INFO] finished tweaking crates.io crate checkdigit 0.1.0
[INFO] tweaked toml for crates.io crate checkdigit 0.1.0 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate checkdigit 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]     Blocking waiting for file lock on package cache
[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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] e7f8e9469dfef9ddea40214fcbe6cdf76057a5a525fe52349e0c4d959c56ea16
[INFO] running `Command { std: "docker" "start" "-a" "e7f8e9469dfef9ddea40214fcbe6cdf76057a5a525fe52349e0c4d959c56ea16", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e7f8e9469dfef9ddea40214fcbe6cdf76057a5a525fe52349e0c4d959c56ea16", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e7f8e9469dfef9ddea40214fcbe6cdf76057a5a525fe52349e0c4d959c56ea16", kill_on_drop: false }`
[INFO] [stdout] e7f8e9469dfef9ddea40214fcbe6cdf76057a5a525fe52349e0c4d959c56ea16
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] e17439178ca1c5ff4f5c8ef7596885d4cb2119505b43e4ed492b198a45a3ab9d
[INFO] running `Command { std: "docker" "start" "-a" "e17439178ca1c5ff4f5c8ef7596885d4cb2119505b43e4ed492b198a45a3ab9d", kill_on_drop: false }`
[INFO] [stderr]    Compiling checkdigit v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.41s
[INFO] running `Command { std: "docker" "inspect" "e17439178ca1c5ff4f5c8ef7596885d4cb2119505b43e4ed492b198a45a3ab9d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e17439178ca1c5ff4f5c8ef7596885d4cb2119505b43e4ed492b198a45a3ab9d", kill_on_drop: false }`
[INFO] [stdout] e17439178ca1c5ff4f5c8ef7596885d4cb2119505b43e4ed492b198a45a3ab9d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 2a63dae5d24b74dc97e5400f4ce128ea3b4ee0de8248cfb6e5cdb53b6fb533c9
[INFO] running `Command { std: "docker" "start" "-a" "2a63dae5d24b74dc97e5400f4ce128ea3b4ee0de8248cfb6e5cdb53b6fb533c9", kill_on_drop: false }`
[INFO] [stderr]    Compiling checkdigit v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused return value of `from` that must be used
[INFO] [stdout]    --> src/util/charmap.rs:130:9
[INFO] [stdout]     |
[INFO] [stdout] 130 |         CharMap::<u8>::from("0123405");
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 130 |         let _ = CharMap::<u8>::from("0123405");
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.99s
[INFO] running `Command { std: "docker" "inspect" "2a63dae5d24b74dc97e5400f4ce128ea3b4ee0de8248cfb6e5cdb53b6fb533c9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2a63dae5d24b74dc97e5400f4ce128ea3b4ee0de8248cfb6e5cdb53b6fb533c9", kill_on_drop: false }`
[INFO] [stdout] 2a63dae5d24b74dc97e5400f4ce128ea3b4ee0de8248cfb6e5cdb53b6fb533c9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 0ab66a96c21fccb95a03b50a06f0cee4bb66a648996618382f6606dd8db9aaaa
[INFO] running `Command { std: "docker" "start" "-a" "0ab66a96c21fccb95a03b50a06f0cee4bb66a648996618382f6606dd8db9aaaa", kill_on_drop: false }`
[INFO] [stderr] warning: unused return value of `from` that must be used
[INFO] [stderr]    --> src/util/charmap.rs:130:9
[INFO] [stderr]     |
[INFO] [stderr] 130 |         CharMap::<u8>::from("0123405");
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]     |
[INFO] [stderr] 130 |         let _ = CharMap::<u8>::from("0123405");
[INFO] [stderr]     |         +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: `checkdigit` (lib test) generated 1 warning
[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/checkdigit-69ced8c55f9641db)
[INFO] [stdout] 
[INFO] [stdout] running 12 tests
[INFO] [stdout] test util::charmap::tests::convert_chars ... ok
[INFO] [stdout] test util::charmap::tests::convert_chars_lossy ... ok
[INFO] [stdout] test util::charmap::tests::from_str ... ok
[INFO] [stdout] test util::charmap::tests::with_numset ... ok
[INFO] [stdout] test util::charmap::tests::convert_nums ... ok
[INFO] [stdout] test util::tests::split_protected_tail_n ... ok
[INFO] [stdout] test util::tests::build_protected_apend ... ok
[INFO] [stdout] test util::charmap::tests::convert_nums_unknown - should panic ... ok
[INFO] [stdout] test util::charmap::tests::with_numset_different_lengths - should panic ... ok
[INFO] [stdout] test util::charmap::tests::from_str_duplicate - should panic ... ok
[INFO] [stdout] test util::charmap::tests::with_numset_duplicate_char - should panic ... ok
[INFO] [stdout] test util::charmap::tests::with_numset_duplicate_num - should panic ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 12 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.04s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/ref_luhn.rs (/opt/rustwide/target/x86_64-unknown-linux-musl/debug/deps/ref_luhn-c3acbdc32adda2b2)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test test_ref_luhn ... ok
[INFO] [stdout] 
[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" "0ab66a96c21fccb95a03b50a06f0cee4bb66a648996618382f6606dd8db9aaaa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0ab66a96c21fccb95a03b50a06f0cee4bb66a648996618382f6606dd8db9aaaa", kill_on_drop: false }`
[INFO] [stdout] 0ab66a96c21fccb95a03b50a06f0cee4bb66a648996618382f6606dd8db9aaaa