[INFO] fetching crate tquest 0.3.1...
[INFO] checking tquest-0.3.1 against try#c659ee110de67e82444e4b6c8407c1a9af9c2cf6 for pr-145608-1
[INFO] extracting crate tquest 0.3.1 into /workspace/builds/worker-0-tc2/source
[INFO] started tweaking crates.io crate tquest 0.3.1
[INFO] finished tweaking crates.io crate tquest 0.3.1
[INFO] tweaked toml for crates.io crate tquest 0.3.1 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate tquest 0.3.1 on toolchain c659ee110de67e82444e4b6c8407c1a9af9c2cf6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "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" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 61 packages to latest compatible versions
[INFO] [stderr]       Adding colored v2.2.0 (available: v3.0.0)
[INFO] [stderr]       Adding rustyline v14.0.0 (available: v17.0.1)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "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" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 080354d7dbde51c66a04aa7f4f0e71b77a96f77937525fd7a1d3214be56e544f
[INFO] running `Command { std: "docker" "start" "-a" "080354d7dbde51c66a04aa7f4f0e71b77a96f77937525fd7a1d3214be56e544f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "080354d7dbde51c66a04aa7f4f0e71b77a96f77937525fd7a1d3214be56e544f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "080354d7dbde51c66a04aa7f4f0e71b77a96f77937525fd7a1d3214be56e544f", kill_on_drop: false }`
[INFO] [stdout] 080354d7dbde51c66a04aa7f4f0e71b77a96f77937525fd7a1d3214be56e544f
[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" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2a22e1c7b546d5853a0d4fbfe9a5d602ce2f9d04532e09f0977684b6bd5b97e2
[INFO] running `Command { std: "docker" "start" "-a" "2a22e1c7b546d5853a0d4fbfe9a5d602ce2f9d04532e09f0977684b6bd5b97e2", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v2.0.106
[INFO] [stderr]    Compiling cfg_aliases v0.1.1
[INFO] [stderr]     Checking endian-type v0.1.2
[INFO] [stderr]     Checking nibble_vec v0.1.0
[INFO] [stderr]     Checking home v0.5.11
[INFO] [stderr]     Checking fd-lock v4.0.4
[INFO] [stderr]    Compiling nix v0.28.0
[INFO] [stderr]     Checking radix_trie v0.2.1
[INFO] [stderr]    Compiling serde_derive v1.0.219
[INFO] [stderr]    Compiling builder_m4cro v0.4.0
[INFO] [stderr]     Checking rustyline v14.0.0
[INFO] [stderr]     Checking serde v1.0.219
[INFO] [stderr]     Checking serde_json v1.0.143
[INFO] [stderr]     Checking tquest v0.3.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::io`
[INFO] [stdout]  --> src/ui.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::io;
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::io`
[INFO] [stdout]  --> src/ui.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::io;
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `input`
[INFO] [stdout]    --> src/ui.rs:284:21
[INFO] [stdout]     |
[INFO] [stdout] 284 |             let mut input = String::new(); 
[INFO] [stdout]     |                     ^^^^^ help: if this is intentional, prefix it with an underscore: `_input`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ui.rs:284:17
[INFO] [stdout]     |
[INFO] [stdout] 284 |             let mut input = String::new(); 
[INFO] [stdout]     |                 ----^^^^^
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `input`
[INFO] [stdout]    --> src/ui.rs:284:21
[INFO] [stdout]     |
[INFO] [stdout] 284 |             let mut input = String::new(); 
[INFO] [stdout]     |                     ^^^^^ help: if this is intentional, prefix it with an underscore: `_input`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/ui.rs:284:17
[INFO] [stdout]     |
[INFO] [stdout] 284 |             let mut input = String::new(); 
[INFO] [stdout]     |                 ----^^^^^
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Canceled` is never constructed
[INFO] [stdout]   --> src/ui.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub enum QuestionScreenResult {
[INFO] [stdout]    |          -------------------- variant in this enum
[INFO] [stdout] 14 |     Canceled,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Canceled` is never constructed
[INFO] [stdout]   --> src/ui.rs:21:5
[INFO] [stdout]    |
[INFO] [stdout] 20 | pub enum ProceedScreenResult {
[INFO] [stdout]    |          ------------------- variant in this enum
[INFO] [stdout] 21 |     Canceled,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Urgent` is never constructed
[INFO] [stdout]   --> src/ui.rs:27:5
[INFO] [stdout]    |
[INFO] [stdout] 25 | pub enum MsgLevel {
[INFO] [stdout]    |          -------- variant in this enum
[INFO] [stdout] 26 |     Normal,
[INFO] [stdout] 27 |     Urgent,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `NoPersistence` is never constructed
[INFO] [stdout]    --> src/persistence.rs:109:12
[INFO] [stdout]     |
[INFO] [stdout] 109 | pub struct NoPersistence {
[INFO] [stdout]     |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]    --> src/persistence.rs:113:12
[INFO] [stdout]     |
[INFO] [stdout] 112 | impl NoPersistence {
[INFO] [stdout]     | ------------------ associated function in this implementation
[INFO] [stdout] 113 |     pub fn new() -> Self {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Canceled` is never constructed
[INFO] [stdout]   --> src/ui.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub enum QuestionScreenResult {
[INFO] [stdout]    |          -------------------- variant in this enum
[INFO] [stdout] 14 |     Canceled,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Canceled` is never constructed
[INFO] [stdout]   --> src/ui.rs:21:5
[INFO] [stdout]    |
[INFO] [stdout] 20 | pub enum ProceedScreenResult {
[INFO] [stdout]    |          ------------------- variant in this enum
[INFO] [stdout] 21 |     Canceled,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Urgent` is never constructed
[INFO] [stdout]   --> src/ui.rs:27:5
[INFO] [stdout]    |
[INFO] [stdout] 25 | pub enum MsgLevel {
[INFO] [stdout]    |          -------- variant in this enum
[INFO] [stdout] 26 |     Normal,
[INFO] [stdout] 27 |     Urgent,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 10.90s
[INFO] running `Command { std: "docker" "inspect" "2a22e1c7b546d5853a0d4fbfe9a5d602ce2f9d04532e09f0977684b6bd5b97e2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2a22e1c7b546d5853a0d4fbfe9a5d602ce2f9d04532e09f0977684b6bd5b97e2", kill_on_drop: false }`
[INFO] [stdout] 2a22e1c7b546d5853a0d4fbfe9a5d602ce2f9d04532e09f0977684b6bd5b97e2