[INFO] fetching crate myveryhotcrate 0.1.0...
[INFO] checking myveryhotcrate-0.1.0 against try#a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d for pr-145342-1
[INFO] extracting crate myveryhotcrate 0.1.0 into /workspace/builds/worker-7-tc2/source
[INFO] started tweaking crates.io crate myveryhotcrate 0.1.0
[INFO] finished tweaking crates.io crate myveryhotcrate 0.1.0
[INFO] tweaked toml for crates.io crate myveryhotcrate 0.1.0 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate myveryhotcrate 0.1.0 on toolchain a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate myveryhotcrate 0.1.0 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" "+a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d" "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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b68d8b2594fa2ea60b031b621fb5177a8e8c956adc66d1a38049ffc4118e1d9b
[INFO] running `Command { std: "docker" "start" "-a" "b68d8b2594fa2ea60b031b621fb5177a8e8c956adc66d1a38049ffc4118e1d9b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b68d8b2594fa2ea60b031b621fb5177a8e8c956adc66d1a38049ffc4118e1d9b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b68d8b2594fa2ea60b031b621fb5177a8e8c956adc66d1a38049ffc4118e1d9b", kill_on_drop: false }`
[INFO] [stdout] b68d8b2594fa2ea60b031b621fb5177a8e8c956adc66d1a38049ffc4118e1d9b
[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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 818b4e9913b2d2c38b0170b3d328638cedcb83023c45e4ec2a2ffcfd88b1a21d
[INFO] running `Command { std: "docker" "start" "-a" "818b4e9913b2d2c38b0170b3d328638cedcb83023c45e4ec2a2ffcfd88b1a21d", kill_on_drop: false }`
[INFO] [stderr]     Checking myveryhotcrate v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::error::Error`
[INFO] [stdout]  --> src/tt/errors.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::error::Error;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::error::Error`
[INFO] [stdout]  --> src/tt/errors.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::error::Error;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `UserID` is never used
[INFO] [stdout]  --> src/mod_1.rs:1:6
[INFO] [stdout]   |
[INFO] [stdout] 1 | type UserID = String;
[INFO] [stdout]   |      ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Options` is never constructed
[INFO] [stdout]  --> src/mod_1.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | struct Options {
[INFO] [stdout]   |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `FetchOption` is never used
[INFO] [stdout]  --> src/mod_1.rs:7:6
[INFO] [stdout]   |
[INFO] [stdout] 7 | type FetchOption = Box<dyn FnOnce(&mut Options)>;
[INFO] [stdout]   |      ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `fetch_option_set_user_id` is never used
[INFO] [stdout]  --> src/mod_1.rs:9:4
[INFO] [stdout]   |
[INFO] [stdout] 9 | fn fetch_option_set_user_id(user_id: UserID) -> FetchOption {
[INFO] [stdout]   |    ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `apply_options` is never used
[INFO] [stdout]   --> src/mod_1.rs:15:4
[INFO] [stdout]    |
[INFO] [stdout] 15 | fn apply_options(options: Vec<FetchOption>) -> Options {
[INFO] [stdout]    |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `S` is never constructed
[INFO] [stdout]  --> src/tt/mando.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | struct S {}
[INFO] [stdout]   |        ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `AsT` is never used
[INFO] [stdout]  --> src/tt/mando.rs:3:7
[INFO] [stdout]   |
[INFO] [stdout] 3 | trait AsT {
[INFO] [stdout]   |       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `G` is never used
[INFO] [stdout]   --> src/tt/mando.rs:16:7
[INFO] [stdout]    |
[INFO] [stdout] 16 | trait G<T> {
[INFO] [stdout]    |       ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Z` is never constructed
[INFO] [stdout]   --> src/tt/mando.rs:32:8
[INFO] [stdout]    |
[INFO] [stdout] 32 | struct Z<T> {
[INFO] [stdout]    |        ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Errors` is never used
[INFO] [stdout]  --> src/tt/errors.rs:5:6
[INFO] [stdout]   |
[INFO] [stdout] 5 | enum Errors {
[INFO] [stdout]   |      ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `dada` is never used
[INFO] [stdout]   --> src/tt/errors.rs:18:8
[INFO] [stdout]    |
[INFO] [stdout] 10 | impl Errors {
[INFO] [stdout]    | ----------- associated function in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 18 |     fn dada() {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `r`
[INFO] [stdout]   --> src/tt/errors.rs:38:13
[INFO] [stdout]    |
[INFO] [stdout] 38 |         let r: Result<i32, Errors> = Ok(1);
[INFO] [stdout]    |             ^ help: if this is intentional, prefix it with an underscore: `_r`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `r`
[INFO] [stdout]   --> src/tt/errors.rs:39:13
[INFO] [stdout]    |
[INFO] [stdout] 39 |         let r: Result<i32, Errors> = Err(Errors::ErrCardNotFound);
[INFO] [stdout]    |             ^ help: if this is intentional, prefix it with an underscore: `_r`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Z` is never constructed
[INFO] [stdout]   --> src/tt/mando.rs:32:8
[INFO] [stdout]    |
[INFO] [stdout] 32 | struct Z<T> {
[INFO] [stdout]    |        ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `ErrTransactionNotFound` is never constructed
[INFO] [stdout]  --> src/tt/errors.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | enum Errors {
[INFO] [stdout]   |      ------ variant in this enum
[INFO] [stdout] 6 |     ErrCardNotFound,
[INFO] [stdout] 7 |     ErrTransactionNotFound,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Errors` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `dada` is never used
[INFO] [stdout]   --> src/tt/errors.rs:18:8
[INFO] [stdout]    |
[INFO] [stdout] 10 | impl Errors {
[INFO] [stdout]    | ----------- associated function in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 18 |     fn dada() {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.46s
[INFO] running `Command { std: "docker" "inspect" "818b4e9913b2d2c38b0170b3d328638cedcb83023c45e4ec2a2ffcfd88b1a21d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "818b4e9913b2d2c38b0170b3d328638cedcb83023c45e4ec2a2ffcfd88b1a21d", kill_on_drop: false }`
[INFO] [stdout] 818b4e9913b2d2c38b0170b3d328638cedcb83023c45e4ec2a2ffcfd88b1a21d