[INFO] cloning repository https://github.com/chinatsu/experiments
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/chinatsu/experiments" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fchinatsu%2Fexperiments", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fchinatsu%2Fexperiments'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 2c6486f1df91fb191df2499b66b0f65cfef6fde5
[INFO] checking chinatsu/experiments against try#012cd62c9add58ab3910e44c137d87db3ab70f61 for pr-155915
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fchinatsu%2Fexperiments" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/chinatsu/experiments
[INFO] finished tweaking git repo https://github.com/chinatsu/experiments
[INFO] tweaked toml for git repo https://github.com/chinatsu/experiments written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/chinatsu/experiments on toolchain 012cd62c9add58ab3910e44c137d87db3ab70f61
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+012cd62c9add58ab3910e44c137d87db3ab70f61" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/chinatsu/experiments 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" "+012cd62c9add58ab3910e44c137d87db3ab70f61" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+012cd62c9add58ab3910e44c137d87db3ab70f61" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ba1041a7ac5a609692ef40c1abf237a99c47ac9402b808e107ac9aa85533907b
[INFO] running `Command { std: "docker" "start" "-a" "ba1041a7ac5a609692ef40c1abf237a99c47ac9402b808e107ac9aa85533907b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ba1041a7ac5a609692ef40c1abf237a99c47ac9402b808e107ac9aa85533907b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ba1041a7ac5a609692ef40c1abf237a99c47ac9402b808e107ac9aa85533907b", kill_on_drop: false }`
[INFO] [stdout] ba1041a7ac5a609692ef40c1abf237a99c47ac9402b808e107ac9aa85533907b
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+012cd62c9add58ab3910e44c137d87db3ab70f61" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3342a3334e945862507a0a7eeafd6ffc57bc47586e273833e1ccb9d0ad0cf9ca
[INFO] running `Command { std: "docker" "start" "-a" "3342a3334e945862507a0a7eeafd6ffc57bc47586e273833e1ccb9d0ad0cf9ca", kill_on_drop: false }`
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[INFO] [stderr]    Compiling memchr v2.3.4
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[INFO] [stderr]    Compiling proc-macro-nested v0.1.7
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[INFO] [stderr]    Compiling tokio v1.5.0
[INFO] [stderr]    Compiling yansi v0.5.0
[INFO] [stderr]    Compiling proc-macro2-diagnostics v0.9.1
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[INFO] [stderr]    Compiling pin-project v1.0.7
[INFO] [stderr]     Checking pear v0.2.2
[INFO] [stderr]    Compiling devise_codegen v0.3.0 (https://github.com/SergioBenitez/Devise.git?rev=df00b5#df00b516)
[INFO] [stderr]    Compiling derive_more v0.99.13
[INFO] [stderr]    Compiling devise v0.3.0 (https://github.com/SergioBenitez/Devise.git?rev=df00b5#df00b516)
[INFO] [stderr]     Checking futures-executor v0.3.14
[INFO] [stderr]     Checking futures v0.3.14
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[INFO] [stderr]     Checking h2 v0.3.2
[INFO] [stderr]     Checking hyper v0.14.6
[INFO] [stderr]     Checking rocket_http v0.5.0-dev (https://github.com/SergioBenitez/Rocket#e1307ddf)
[INFO] [stderr]    Compiling rocket_codegen v0.5.0-dev (https://github.com/SergioBenitez/Rocket#e1307ddf)
[INFO] [stderr]     Checking rocket_contrib v0.5.0-dev (https://github.com/SergioBenitez/Rocket#e1307ddf)
[INFO] [stderr]     Checking experiments v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `key`
[INFO] [stdout]   --> src/main.rs:35:10
[INFO] [stdout]    |
[INFO] [stdout] 35 | fn hello(key: IdToken<'_>) -> String {
[INFO] [stdout]    |          ^^^ help: if this is intentional, prefix it with an underscore: `_key`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `key`
[INFO] [stdout]   --> src/main.rs:35:10
[INFO] [stdout]    |
[INFO] [stdout] 35 | fn hello(key: IdToken<'_>) -> String {
[INFO] [stdout]    |          ^^^ help: if this is intentional, prefix it with an underscore: `_key`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]  --> src/main.rs:6:20
[INFO] [stdout]   |
[INFO] [stdout] 6 | struct IdToken<'r>(&'r str);
[INFO] [stdout]   |        -------     ^^^^^^^
[INFO] [stdout]   |        |
[INFO] [stdout]   |        field in this struct
[INFO] [stdout]   |
[INFO] [stdout]   = help: consider removing this field
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `BadCount` is never constructed
[INFO] [stdout]   --> src/main.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout]  9 | enum IdTokenError {
[INFO] [stdout]    |      ------------ variant in this enum
[INFO] [stdout] 10 |     BadCount,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `IdTokenError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:41:5
[INFO] [stdout]    |
[INFO] [stdout] 41 |     rocket::build().mount("/", routes![hello]).launch().await;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 41 |     let _ = rocket::build().mount("/", routes![hello]).launch().await;
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: feature `decl_macro` is declared but not used
[INFO] [stdout]  --> src/main.rs:1:32
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(proc_macro_hygiene, decl_macro)]
[INFO] [stdout]   |                                ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_features)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]  --> src/main.rs:6:20
[INFO] [stdout]   |
[INFO] [stdout] 6 | struct IdToken<'r>(&'r str);
[INFO] [stdout]   |        -------     ^^^^^^^
[INFO] [stdout]   |        |
[INFO] [stdout]   |        field in this struct
[INFO] [stdout]   |
[INFO] [stdout]   = help: consider removing this field
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `BadCount` is never constructed
[INFO] [stdout]   --> src/main.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout]  9 | enum IdTokenError {
[INFO] [stdout]    |      ------------ variant in this enum
[INFO] [stdout] 10 |     BadCount,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `IdTokenError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:41:5
[INFO] [stdout]    |
[INFO] [stdout] 41 |     rocket::build().mount("/", routes![hello]).launch().await;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 41 |     let _ = rocket::build().mount("/", routes![hello]).launch().await;
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: feature `decl_macro` is declared but not used
[INFO] [stdout]  --> src/main.rs:1:32
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(proc_macro_hygiene, decl_macro)]
[INFO] [stdout]   |                                ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_features)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1m 31s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: rocket v0.5.0-dev (https://github.com/SergioBenitez/Rocket#e1307ddf), ubyte v0.10.1
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 2`
[INFO] running `Command { std: "docker" "inspect" "3342a3334e945862507a0a7eeafd6ffc57bc47586e273833e1ccb9d0ad0cf9ca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3342a3334e945862507a0a7eeafd6ffc57bc47586e273833e1ccb9d0ad0cf9ca", kill_on_drop: false }`
[INFO] [stdout] 3342a3334e945862507a0a7eeafd6ffc57bc47586e273833e1ccb9d0ad0cf9ca
