[INFO] fetching crate dbgen 0.8.0...
[INFO] checking dbgen-0.8.0 against master#4eb62535fc12dd1a63fd43a4173e224e79313c4d for pr-158816
[INFO] extracting crate dbgen 0.8.0 into /workspace/builds/worker-5-tc1/source
[INFO] started tweaking crates.io crate dbgen 0.8.0
[INFO] finished tweaking crates.io crate dbgen 0.8.0
[INFO] tweaked toml for crates.io crate dbgen 0.8.0 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate dbgen 0.8.0 on toolchain 4eb62535fc12dd1a63fd43a4173e224e79313c4d
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4eb62535fc12dd1a63fd43a4173e224e79313c4d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate dbgen 0.8.0 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" "+4eb62535fc12dd1a63fd43a4173e224e79313c4d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] [stderr]     Updating crates.io index
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:3d5ced03c013a94a2f102a4510f48a6e9184255caf5fd8244f58017bde7f5210" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] c7a15151b320dbeaa98ea2a16af9601b2c1d31ff7300bcba34d22838cb706fef
[INFO] running `Command { std: "docker" "start" "c7a15151b320dbeaa98ea2a16af9601b2c1d31ff7300bcba34d22838cb706fef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c7a15151b320dbeaa98ea2a16af9601b2c1d31ff7300bcba34d22838cb706fef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "c7a15151b320dbeaa98ea2a16af9601b2c1d31ff7300bcba34d22838cb706fef" "/opt/rustwide/cargo-home/bin/cargo" "+4eb62535fc12dd1a63fd43a4173e224e79313c4d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c7a15151b320dbeaa98ea2a16af9601b2c1d31ff7300bcba34d22838cb706fef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "c7a15151b320dbeaa98ea2a16af9601b2c1d31ff7300bcba34d22838cb706fef" "/opt/rustwide/cargo-home/bin/cargo" "+4eb62535fc12dd1a63fd43a4173e224e79313c4d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
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[INFO] [stderr]    Compiling thiserror-impl v1.0.23
[INFO] [stderr]    Compiling dbgen v0.8.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling structopt-derive v0.4.14
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[INFO] [stdout] warning: irrefutable `if let` pattern
[INFO] [stdout]    --> src/value.rs:305:24
[INFO] [stdout]     |
[INFO] [stdout] 305 |                     if let Ok(v) = n.try_into() {
[INFO] [stdout]     |                        ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 343 | impl_try_from_value!(f64, "floating point number");
[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 `impl_try_from_value` (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/value.rs:320:28
[INFO] [stdout]     |
[INFO] [stdout] 320 |                         if let Ok(v) = n.try_into() {
[INFO] [stdout]     |                            ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 343 | impl_try_from_value!(f64, "floating point number");
[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 `impl_try_from_value` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `qualified` is never read
[INFO] [stdout]   --> src/writer.rs:55:5
[INFO] [stdout]    |
[INFO] [stdout] 53 | pub struct Env<'a, W: Writer> {
[INFO] [stdout]    |            --- field in this struct
[INFO] [stdout] 54 |     state: &'a mut State,
[INFO] [stdout] 55 |     qualified: bool,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Env` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: irrefutable `if let` pattern
[INFO] [stdout]    --> src/value.rs:305:24
[INFO] [stdout]     |
[INFO] [stdout] 305 |                     if let Ok(v) = n.try_into() {
[INFO] [stdout]     |                        ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 343 | impl_try_from_value!(f64, "floating point number");
[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 `impl_try_from_value` (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/value.rs:320:28
[INFO] [stdout]     |
[INFO] [stdout] 320 |                         if let Ok(v) = n.try_into() {
[INFO] [stdout]     |                            ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 343 | impl_try_from_value!(f64, "floating point number");
[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 `impl_try_from_value` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `qualified` is never read
[INFO] [stdout]   --> src/writer.rs:55:5
[INFO] [stdout]    |
[INFO] [stdout] 53 | pub struct Env<'a, W: Writer> {
[INFO] [stdout]    |            --- field in this struct
[INFO] [stdout] 54 |     state: &'a mut State,
[INFO] [stdout] 55 |     qualified: bool,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Env` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1m 17s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: criterion v0.3.4
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 5`
[INFO] running `Command { std: "docker" "inspect" "c7a15151b320dbeaa98ea2a16af9601b2c1d31ff7300bcba34d22838cb706fef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c7a15151b320dbeaa98ea2a16af9601b2c1d31ff7300bcba34d22838cb706fef", kill_on_drop: false }`
[INFO] [stdout] c7a15151b320dbeaa98ea2a16af9601b2c1d31ff7300bcba34d22838cb706fef
