[INFO] fetching crate polyvalue 0.3.4...
[INFO] checking polyvalue-0.3.4 against master#bca37a20bd376ce3fd138e7cdee7fe704e0f8814 for pr-139493-3
[INFO] extracting crate polyvalue 0.3.4 into /workspace/builds/worker-0-tc1/source
[INFO] started tweaking crates.io crate polyvalue 0.3.4
[INFO] finished tweaking crates.io crate polyvalue 0.3.4
[INFO] tweaked toml for crates.io crate polyvalue 0.3.4 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate polyvalue 0.3.4 on toolchain bca37a20bd376ce3fd138e7cdee7fe704e0f8814
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+bca37a20bd376ce3fd138e7cdee7fe704e0f8814" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate polyvalue 0.3.4 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" "+bca37a20bd376ce3fd138e7cdee7fe704e0f8814" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+bca37a20bd376ce3fd138e7cdee7fe704e0f8814" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "start" "-a" "ff7f78fc4e6e45e5b60e3348cab4067a453adfd3ad467ea43387bfd24e94164d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ff7f78fc4e6e45e5b60e3348cab4067a453adfd3ad467ea43387bfd24e94164d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ff7f78fc4e6e45e5b60e3348cab4067a453adfd3ad467ea43387bfd24e94164d", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+bca37a20bd376ce3fd138e7cdee7fe704e0f8814" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e7c316e58a8ad84bcc8edf075907a4423972c2742197b1d29473aef44cb3a596
[INFO] running `Command { std: "docker" "start" "-a" "e7c316e58a8ad84bcc8edf075907a4423972c2742197b1d29473aef44cb3a596", kill_on_drop: false }`
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[INFO] [stderr]     Checking polyvalue v0.3.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking toml v0.7.8
[INFO] [stdout] warning: irrefutable `if let` pattern
[INFO] [stdout]    --> src/types/int.rs:349:32
[INFO] [stdout]     |
[INFO] [stdout] 349 |                             if let Ok(right) = right.try_into() {
[INFO] [stdout]     |                                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 456 | sized_int_type!(U8, u8, "8 bit unsigned integer");
[INFO] [stdout]     | ------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this pattern will always match, so the `if let` is useless
[INFO] [stdout]     = help: consider replacing the `if let` with a `let`
[INFO] [stdout]     = note: `#[warn(irrefutable_let_patterns)]` on by default
[INFO] [stdout]     = note: this warning originates in the macro `sized_int_type` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: irrefutable `if let` pattern
[INFO] [stdout]    --> src/types/int.rs:349:32
[INFO] [stdout]     |
[INFO] [stdout] 349 |                             if let Ok(right) = right.try_into() {
[INFO] [stdout]     |                                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 457 | sized_int_type!(U16, u16, "16 bit unsigned integer");
[INFO] [stdout]     | ---------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this pattern will always match, so the `if let` is useless
[INFO] [stdout]     = help: consider replacing the `if let` with a `let`
[INFO] [stdout]     = note: this warning originates in the macro `sized_int_type` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: irrefutable `if let` pattern
[INFO] [stdout]    --> src/types/int.rs:349:32
[INFO] [stdout]     |
[INFO] [stdout] 349 |                             if let Ok(right) = right.try_into() {
[INFO] [stdout]     |                                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 458 | sized_int_type!(U32, u32, "32 bit unsigned integer");
[INFO] [stdout]     | ---------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this pattern will always match, so the `if let` is useless
[INFO] [stdout]     = help: consider replacing the `if let` with a `let`
[INFO] [stdout]     = note: this warning originates in the macro `sized_int_type` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `contains_currency_symbol` is never used
[INFO] [stdout]  --> src/is_currency.rs:6:8
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub trait IsCurrency {
[INFO] [stdout]   |           ---------- method in this trait
[INFO] [stdout] 5 |     /// Returns true if the given string contains a currency symbol
[INFO] [stdout] 6 |     fn contains_currency_symbol(&self) -> bool;
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking toml v0.8.10
[INFO] [stderr]     Checking version-sync v0.9.5
[INFO] [stderr]     Checking cargo-readme v3.3.1
[INFO] [stdout] warning: irrefutable `if let` pattern
[INFO] [stdout]    --> src/types/int.rs:349:32
[INFO] [stdout]     |
[INFO] [stdout] 349 |                             if let Ok(right) = right.try_into() {
[INFO] [stdout]     |                                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 456 | sized_int_type!(U8, u8, "8 bit unsigned integer");
[INFO] [stdout]     | ------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this pattern will always match, so the `if let` is useless
[INFO] [stdout]     = help: consider replacing the `if let` with a `let`
[INFO] [stdout]     = note: `#[warn(irrefutable_let_patterns)]` on by default
[INFO] [stdout]     = note: this warning originates in the macro `sized_int_type` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: irrefutable `if let` pattern
[INFO] [stdout]    --> src/types/int.rs:349:32
[INFO] [stdout]     |
[INFO] [stdout] 349 |                             if let Ok(right) = right.try_into() {
[INFO] [stdout]     |                                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 457 | sized_int_type!(U16, u16, "16 bit unsigned integer");
[INFO] [stdout]     | ---------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this pattern will always match, so the `if let` is useless
[INFO] [stdout]     = help: consider replacing the `if let` with a `let`
[INFO] [stdout]     = note: this warning originates in the macro `sized_int_type` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: irrefutable `if let` pattern
[INFO] [stdout]    --> src/types/int.rs:349:32
[INFO] [stdout]     |
[INFO] [stdout] 349 |                             if let Ok(right) = right.try_into() {
[INFO] [stdout]     |                                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 458 | sized_int_type!(U32, u32, "32 bit unsigned integer");
[INFO] [stdout]     | ---------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this pattern will always match, so the `if let` is useless
[INFO] [stdout]     = help: consider replacing the `if let` with a `let`
[INFO] [stdout]     = note: this warning originates in the macro `sized_int_type` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 19.41s
[INFO] running `Command { std: "docker" "inspect" "e7c316e58a8ad84bcc8edf075907a4423972c2742197b1d29473aef44cb3a596", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e7c316e58a8ad84bcc8edf075907a4423972c2742197b1d29473aef44cb3a596", kill_on_drop: false }`
[INFO] [stdout] e7c316e58a8ad84bcc8edf075907a4423972c2742197b1d29473aef44cb3a596