[INFO] fetching crate userprompt 0.3.4...
[INFO] testing userprompt-0.3.4 against try#b83b707f97d809763b7861afa7638871f3339a33 for pr-145838-1
[INFO] extracting crate userprompt 0.3.4 into /workspace/builds/worker-0-tc2/source
[INFO] started tweaking crates.io crate userprompt 0.3.4
[INFO] finished tweaking crates.io crate userprompt 0.3.4
[INFO] tweaked toml for crates.io crate userprompt 0.3.4 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate userprompt 0.3.4 on toolchain b83b707f97d809763b7861afa7638871f3339a33
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate userprompt 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" "+b83b707f97d809763b7861afa7638871f3339a33" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 817d06303732af1de55f442e7efb06dd291ab957bb1875d41cba43d0c0842c3b
[INFO] running `Command { std: "docker" "start" "-a" "817d06303732af1de55f442e7efb06dd291ab957bb1875d41cba43d0c0842c3b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "817d06303732af1de55f442e7efb06dd291ab957bb1875d41cba43d0c0842c3b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "817d06303732af1de55f442e7efb06dd291ab957bb1875d41cba43d0c0842c3b", kill_on_drop: false }`
[INFO] [stdout] 817d06303732af1de55f442e7efb06dd291ab957bb1875d41cba43d0c0842c3b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f468952cf376ab1c00de83bf268de08ac5b91177201e894bbff64ed0b6e866e7
[INFO] running `Command { std: "docker" "start" "-a" "f468952cf376ab1c00de83bf268de08ac5b91177201e894bbff64ed0b6e866e7", kill_on_drop: false }`
[INFO] [stderr]    Compiling rtoolbox v0.0.3
[INFO] [stderr]    Compiling syn v2.0.104
[INFO] [stderr]    Compiling rpassword v7.4.0
[INFO] [stderr]    Compiling userprompt_derive v0.0.4
[INFO] [stderr]    Compiling userprompt v0.3.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `comment`
[INFO] [stdout]    --> src/lib.rs:903:35
[INFO] [stdout]     |
[INFO] [stdout] 903 |     fn prompt(name: Option<&str>, comment: Option<&str>) -> Result<Self, Error> {
[INFO] [stdout]     |                                   ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_comment`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `comment`
[INFO] [stdout]    --> src/lib.rs:983:35
[INFO] [stdout]     |
[INFO] [stdout] 983 |     fn prompt(name: Option<&str>, comment: Option<&str>) -> Result<Self, Error> {
[INFO] [stdout]     |                                   ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_comment`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `selection` and `new_selection` are never read
[INFO] [stdout]    --> src/lib.rs:627:5
[INFO] [stdout]     |
[INFO] [stdout] 624 | pub struct SelectedHashMap<T> {
[INFO] [stdout]     |            --------------- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 627 |     selection: Option<String>,
[INFO] [stdout]     |     ^^^^^^^^^
[INFO] [stdout] 628 |     #[cfg_attr(feature = "serde", serde(skip))]
[INFO] [stdout] 629 |     new_selection: String,
[INFO] [stdout]     |     ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `SelectedHashMap` has derived impls for the traits `Debug` and `Clone`, but these are 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 4.68s
[INFO] running `Command { std: "docker" "inspect" "f468952cf376ab1c00de83bf268de08ac5b91177201e894bbff64ed0b6e866e7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f468952cf376ab1c00de83bf268de08ac5b91177201e894bbff64ed0b6e866e7", kill_on_drop: false }`
[INFO] [stdout] f468952cf376ab1c00de83bf268de08ac5b91177201e894bbff64ed0b6e866e7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] dc916c849105bf1f2032847aa0199a7d452e495ee6af87eaa36327b5e4ea426b
[INFO] running `Command { std: "docker" "start" "-a" "dc916c849105bf1f2032847aa0199a7d452e495ee6af87eaa36327b5e4ea426b", kill_on_drop: false }`
[INFO] [stderr]    Compiling userprompt v0.3.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `comment`
[INFO] [stdout]    --> src/lib.rs:903:35
[INFO] [stdout]     |
[INFO] [stdout] 903 |     fn prompt(name: Option<&str>, comment: Option<&str>) -> Result<Self, Error> {
[INFO] [stdout]     |                                   ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_comment`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `comment`
[INFO] [stdout]    --> src/lib.rs:983:35
[INFO] [stdout]     |
[INFO] [stdout] 983 |     fn prompt(name: Option<&str>, comment: Option<&str>) -> Result<Self, Error> {
[INFO] [stdout]     |                                   ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_comment`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `selection` and `new_selection` are never read
[INFO] [stdout]    --> src/lib.rs:627:5
[INFO] [stdout]     |
[INFO] [stdout] 624 | pub struct SelectedHashMap<T> {
[INFO] [stdout]     |            --------------- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 627 |     selection: Option<String>,
[INFO] [stdout]     |     ^^^^^^^^^
[INFO] [stdout] 628 |     #[cfg_attr(feature = "serde", serde(skip))]
[INFO] [stdout] 629 |     new_selection: String,
[INFO] [stdout]     |     ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `SelectedHashMap` has derived impls for the traits `Debug` and `Clone`, but these are 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: unused variable: `comment`
[INFO] [stdout]    --> src/lib.rs:903:35
[INFO] [stdout]     |
[INFO] [stdout] 903 |     fn prompt(name: Option<&str>, comment: Option<&str>) -> Result<Self, Error> {
[INFO] [stdout]     |                                   ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_comment`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `comment`
[INFO] [stdout]    --> src/lib.rs:983:35
[INFO] [stdout]     |
[INFO] [stdout] 983 |     fn prompt(name: Option<&str>, comment: Option<&str>) -> Result<Self, Error> {
[INFO] [stdout]     |                                   ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_comment`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `selection` and `new_selection` are never read
[INFO] [stdout]    --> src/lib.rs:627:5
[INFO] [stdout]     |
[INFO] [stdout] 624 | pub struct SelectedHashMap<T> {
[INFO] [stdout]     |            --------------- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 627 |     selection: Option<String>,
[INFO] [stdout]     |     ^^^^^^^^^
[INFO] [stdout] 628 |     #[cfg_attr(feature = "serde", serde(skip))]
[INFO] [stdout] 629 |     new_selection: String,
[INFO] [stdout]     |     ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `SelectedHashMap` has derived impls for the traits `Debug` and `Clone`, but these are 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 `test` profile [unoptimized + debuginfo] target(s) in 0.61s
[INFO] running `Command { std: "docker" "inspect" "dc916c849105bf1f2032847aa0199a7d452e495ee6af87eaa36327b5e4ea426b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dc916c849105bf1f2032847aa0199a7d452e495ee6af87eaa36327b5e4ea426b", kill_on_drop: false }`
[INFO] [stdout] dc916c849105bf1f2032847aa0199a7d452e495ee6af87eaa36327b5e4ea426b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] d7ef5e6b6dc6f23faa778088735b1918a53a52b2d58126bf29b683d784ba18c8
[INFO] running `Command { std: "docker" "start" "-a" "d7ef5e6b6dc6f23faa778088735b1918a53a52b2d58126bf29b683d784ba18c8", kill_on_drop: false }`
[INFO] [stderr] warning: unused variable: `comment`
[INFO] [stderr]    --> src/lib.rs:903:35
[INFO] [stderr]     |
[INFO] [stderr] 903 |     fn prompt(name: Option<&str>, comment: Option<&str>) -> Result<Self, Error> {
[INFO] [stderr]     |                                   ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_comment`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `comment`
[INFO] [stderr]    --> src/lib.rs:983:35
[INFO] [stderr]     |
[INFO] [stderr] 983 |     fn prompt(name: Option<&str>, comment: Option<&str>) -> Result<Self, Error> {
[INFO] [stderr]     |                                   ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_comment`
[INFO] [stderr] 
[INFO] [stderr] warning: fields `selection` and `new_selection` are never read
[INFO] [stderr]    --> src/lib.rs:627:5
[INFO] [stderr]     |
[INFO] [stderr] 624 | pub struct SelectedHashMap<T> {
[INFO] [stderr]     |            --------------- fields in this struct
[INFO] [stderr] ...
[INFO] [stderr] 627 |     selection: Option<String>,
[INFO] [stderr]     |     ^^^^^^^^^
[INFO] [stderr] 628 |     #[cfg_attr(feature = "serde", serde(skip))]
[INFO] [stderr] 629 |     new_selection: String,
[INFO] [stderr]     |     ^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `SelectedHashMap` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stderr]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `userprompt` (lib) generated 3 warnings
[INFO] [stderr] warning: `userprompt` (lib test) generated 3 warnings (3 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.11s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/userprompt-a7e167aa829e2a07)
[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] [stderr]    Doc-tests userprompt
[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" "d7ef5e6b6dc6f23faa778088735b1918a53a52b2d58126bf29b683d784ba18c8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d7ef5e6b6dc6f23faa778088735b1918a53a52b2d58126bf29b683d784ba18c8", kill_on_drop: false }`
[INFO] [stdout] d7ef5e6b6dc6f23faa778088735b1918a53a52b2d58126bf29b683d784ba18c8