[INFO] fetching crate letters 0.0.1...
[INFO] testing letters-0.0.1 against try#b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b for pr-145330-1
[INFO] extracting crate letters 0.0.1 into /workspace/builds/worker-7-tc2/source
[INFO] started tweaking crates.io crate letters 0.0.1
[INFO] finished tweaking crates.io crate letters 0.0.1
[INFO] tweaked toml for crates.io crate letters 0.0.1 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate letters 0.0.1 on toolchain b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "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" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 104 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3f2d241ebc721c2b354cdc677dbd33349ca44a0c506a345036804952af96c159
[INFO] running `Command { std: "docker" "start" "-a" "3f2d241ebc721c2b354cdc677dbd33349ca44a0c506a345036804952af96c159", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3f2d241ebc721c2b354cdc677dbd33349ca44a0c506a345036804952af96c159", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3f2d241ebc721c2b354cdc677dbd33349ca44a0c506a345036804952af96c159", kill_on_drop: false }`
[INFO] [stdout] 3f2d241ebc721c2b354cdc677dbd33349ca44a0c506a345036804952af96c159
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fbcb72550c2eee62b772d5c20b23d1ff7f593bc5c03ad0a3a6a2d4de0be8d17e
[INFO] running `Command { std: "docker" "start" "-a" "fbcb72550c2eee62b772d5c20b23d1ff7f593bc5c03ad0a3a6a2d4de0be8d17e", kill_on_drop: false }`
[INFO] [stderr]    Compiling log v0.4.28
[INFO] [stderr]    Compiling rust_decimal v1.38.0
[INFO] [stderr]    Compiling arrayvec v0.7.6
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling itertools v0.9.0
[INFO] [stderr]    Compiling xml-rs v0.8.27
[INFO] [stderr]    Compiling uuid v1.18.1
[INFO] [stderr]    Compiling quote v1.0.41
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling env_logger v0.7.1
[INFO] [stderr]    Compiling syn v2.0.106
[INFO] [stderr]    Compiling pretty_env_logger v0.4.0
[INFO] [stderr]    Compiling chrono v0.4.42
[INFO] [stderr]    Compiling serde_derive v1.0.228
[INFO] [stderr]    Compiling rust_decimal_macros v1.38.0
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]    Compiling xml_serde v1.4.1
[INFO] [stderr]    Compiling letters v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `Amount` is never constructed
[INFO] [stdout]  --> src/ubl.rs:7:12
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub struct Amount(Decimal);
[INFO] [stdout]   |            ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Reference` is never constructed
[INFO] [stdout]   --> src/ubl.rs:83:12
[INFO] [stdout]    |
[INFO] [stdout] 83 | pub struct Reference {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `VatLevel` is never used
[INFO] [stdout]  --> src/vat.rs:5:10
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub enum VatLevel {
[INFO] [stdout]   |          ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `VatRoundingStrategy` is never used
[INFO] [stdout]   --> src/vat.rs:11:10
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub enum VatRoundingStrategy {
[INFO] [stdout]    |          ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `round_to_nearest_half_penny` is never used
[INFO] [stdout]   --> src/vat.rs:16:4
[INFO] [stdout]    |
[INFO] [stdout] 16 | fn round_to_nearest_half_penny(vat_amount: Decimal, allow_nil: bool) -> Decimal {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `calculate_vat` is never used
[INFO] [stdout]   --> src/vat.rs:33:8
[INFO] [stdout]    |
[INFO] [stdout] 33 | pub fn calculate_vat(
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.94s
[INFO] running `Command { std: "docker" "inspect" "fbcb72550c2eee62b772d5c20b23d1ff7f593bc5c03ad0a3a6a2d4de0be8d17e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fbcb72550c2eee62b772d5c20b23d1ff7f593bc5c03ad0a3a6a2d4de0be8d17e", kill_on_drop: false }`
[INFO] [stdout] fbcb72550c2eee62b772d5c20b23d1ff7f593bc5c03ad0a3a6a2d4de0be8d17e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0c2f8ae74c2236fd5b53950e16fe45396c92e79f67e0bd1335072c9ddc3a755b
[INFO] running `Command { std: "docker" "start" "-a" "0c2f8ae74c2236fd5b53950e16fe45396c92e79f67e0bd1335072c9ddc3a755b", kill_on_drop: false }`
[INFO] [stdout] warning: struct `Amount` is never constructed
[INFO] [stdout]  --> src/ubl.rs:7:12
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub struct Amount(Decimal);
[INFO] [stdout]   |            ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Reference` is never constructed
[INFO] [stdout]   --> src/ubl.rs:83:12
[INFO] [stdout]    |
[INFO] [stdout] 83 | pub struct Reference {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `VatLevel` is never used
[INFO] [stdout]  --> src/vat.rs:5:10
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub enum VatLevel {
[INFO] [stdout]   |          ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `VatRoundingStrategy` is never used
[INFO] [stdout]   --> src/vat.rs:11:10
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub enum VatRoundingStrategy {
[INFO] [stdout]    |          ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `round_to_nearest_half_penny` is never used
[INFO] [stdout]   --> src/vat.rs:16:4
[INFO] [stdout]    |
[INFO] [stdout] 16 | fn round_to_nearest_half_penny(vat_amount: Decimal, allow_nil: bool) -> Decimal {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `calculate_vat` is never used
[INFO] [stdout]   --> src/vat.rs:33:8
[INFO] [stdout]    |
[INFO] [stdout] 33 | pub fn calculate_vat(
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling letters v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `Amount` is never constructed
[INFO] [stdout]  --> src/ubl.rs:7:12
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub struct Amount(Decimal);
[INFO] [stdout]   |            ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Reference` is never constructed
[INFO] [stdout]   --> src/ubl.rs:83:12
[INFO] [stdout]    |
[INFO] [stdout] 83 | pub struct Reference {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `VatLevel` is never used
[INFO] [stdout]  --> src/vat.rs:5:10
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub enum VatLevel {
[INFO] [stdout]   |          ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `VatRoundingStrategy` is never used
[INFO] [stdout]   --> src/vat.rs:11:10
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub enum VatRoundingStrategy {
[INFO] [stdout]    |          ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `round_to_nearest_half_penny` is never used
[INFO] [stdout]   --> src/vat.rs:16:4
[INFO] [stdout]    |
[INFO] [stdout] 16 | fn round_to_nearest_half_penny(vat_amount: Decimal, allow_nil: bool) -> Decimal {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `calculate_vat` is never used
[INFO] [stdout]   --> src/vat.rs:33:8
[INFO] [stdout]    |
[INFO] [stdout] 33 | pub fn calculate_vat(
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1.41s
[INFO] running `Command { std: "docker" "inspect" "0c2f8ae74c2236fd5b53950e16fe45396c92e79f67e0bd1335072c9ddc3a755b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0c2f8ae74c2236fd5b53950e16fe45396c92e79f67e0bd1335072c9ddc3a755b", kill_on_drop: false }`
[INFO] [stdout] 0c2f8ae74c2236fd5b53950e16fe45396c92e79f67e0bd1335072c9ddc3a755b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 15cb60362ce7e1ab6f6f5aab7eeef7f3c7cc364906d4a0f66ee41f751ac73e7e
[INFO] running `Command { std: "docker" "start" "-a" "15cb60362ce7e1ab6f6f5aab7eeef7f3c7cc364906d4a0f66ee41f751ac73e7e", kill_on_drop: false }`
[INFO] [stderr] warning: struct `Amount` is never constructed
[INFO] [stderr]  --> src/ubl.rs:7:12
[INFO] [stderr]   |
[INFO] [stderr] 7 | pub struct Amount(Decimal);
[INFO] [stderr]   |            ^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: struct `Reference` is never constructed
[INFO] [stderr]   --> src/ubl.rs:83:12
[INFO] [stderr]    |
[INFO] [stderr] 83 | pub struct Reference {
[INFO] [stderr]    |            ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum `VatLevel` is never used
[INFO] [stderr]  --> src/vat.rs:5:10
[INFO] [stderr]   |
[INFO] [stderr] 5 | pub enum VatLevel {
[INFO] [stderr]   |          ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum `VatRoundingStrategy` is never used
[INFO] [stderr]   --> src/vat.rs:11:10
[INFO] [stderr]    |
[INFO] [stderr] 11 | pub enum VatRoundingStrategy {
[INFO] [stderr]    |          ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `round_to_nearest_half_penny` is never used
[INFO] [stderr]   --> src/vat.rs:16:4
[INFO] [stderr]    |
[INFO] [stderr] 16 | fn round_to_nearest_half_penny(vat_amount: Decimal, allow_nil: bool) -> Decimal {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `calculate_vat` is never used
[INFO] [stderr]   --> src/vat.rs:33:8
[INFO] [stderr]    |
[INFO] [stderr] 33 | pub fn calculate_vat(
[INFO] [stderr]    |        ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `letters` (lib) generated 6 warnings
[INFO] [stderr] warning: `letters` (lib test) generated 6 warnings (6 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/letters-f298b4bb1b8cbca0)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test test::invoice_parse_and_format ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests letters
[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" "15cb60362ce7e1ab6f6f5aab7eeef7f3c7cc364906d4a0f66ee41f751ac73e7e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "15cb60362ce7e1ab6f6f5aab7eeef7f3c7cc364906d4a0f66ee41f751ac73e7e", kill_on_drop: false }`
[INFO] [stdout] 15cb60362ce7e1ab6f6f5aab7eeef7f3c7cc364906d4a0f66ee41f751ac73e7e