[INFO] cloning repository https://github.com/henryhazelton/hello-world
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/henryhazelton/hello-world" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhenryhazelton%2Fhello-world", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhenryhazelton%2Fhello-world'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0619fda49b3c828c633ed06bf43c49acb5743d9b
[INFO] fixing henryhazelton/hello-world against try#622891a4e29178280638a6b63a8908bde2c0c854+cargoflags=-Zfix-edition=start=2015 for pr-157817-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhenryhazelton%2Fhello-world" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/henryhazelton/hello-world
[INFO] finished tweaking git repo https://github.com/henryhazelton/hello-world
[INFO] tweaked toml for git repo https://github.com/henryhazelton/hello-world written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/henryhazelton/hello-world on toolchain 622891a4e29178280638a6b63a8908bde2c0c854
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+622891a4e29178280638a6b63a8908bde2c0c854" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/henryhazelton/hello-world 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" "+622891a4e29178280638a6b63a8908bde2c0c854" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/source:/opt/rustwide/workdir:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:3a6becf2bc8dde7f3fa57ede90e4f284e72d296796fc446bbb1e2c7cc0530151" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] e9d24803248ac79daa03a37e1fdf69607e3f6a062aecf12c8d84252e12c35281
[INFO] running `Command { std: "docker" "start" "e9d24803248ac79daa03a37e1fdf69607e3f6a062aecf12c8d84252e12c35281", 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" "e9d24803248ac79daa03a37e1fdf69607e3f6a062aecf12c8d84252e12c35281" "/opt/rustwide/cargo-home/bin/cargo" "+622891a4e29178280638a6b63a8908bde2c0c854" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e9d24803248ac79daa03a37e1fdf69607e3f6a062aecf12c8d84252e12c35281", 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=" "-e" "RUSTDOCFLAGS=" "-w" "/opt/rustwide/workdir" "--user" "0:0" "e9d24803248ac79daa03a37e1fdf69607e3f6a062aecf12c8d84252e12c35281" "/opt/rustwide/cargo-home/bin/cargo" "+622891a4e29178280638a6b63a8908bde2c0c854" "fix" "--allow-no-vcs" "--allow-dirty" "--frozen" "--all" "--all-targets" "--message-format=json" "-Zfix-edition=start=2015", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.177
[INFO] [stderr]     Checking getrandom v0.3.4
[INFO] [stderr]     Checking rand_core v0.9.3
[INFO] [stderr]     Checking rand_chacha v0.9.0
[INFO] [stderr]     Checking rand v0.9.2
[INFO] [stderr]     Checking hello-world v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `random` and `rng`
[INFO] [stdout]  --> src/main.rs:1:24
[INFO] [stdout]   |
[INFO] [stdout] 1 | use rand::{prelude::*, random, rng};
[INFO] [stdout]   |                        ^^^^^^  ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `random` and `rng`
[INFO] [stdout]  --> src/main.rs:1:24
[INFO] [stdout]   |
[INFO] [stdout] 1 | use rand::{prelude::*, random, rng};
[INFO] [stdout]   |                        ^^^^^^  ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: `Option<&i32>` doesn't implement `std::fmt::Display`
[INFO] [stdout]   --> src/main.rs:11:20
[INFO] [stdout]    |
[INFO] [stdout] 11 |     println!("{}", secret_number);
[INFO] [stdout]    |               --   ^^^^^^^^^^^^^ `Option<&i32>` cannot be formatted with the default formatter
[INFO] [stdout]    |               |
[INFO] [stdout]    |               required by this formatting parameter
[INFO] [stdout]    |
[INFO] [stdout]    = help: the trait `std::fmt::Display` is not implemented for `Option<&i32>`
[INFO] [stdout]    = note: in format strings you may be able to use `{:?}` (or {:#?} for pretty-print) instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0277`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `hello-world` (bin "hello-world") due to 1 previous error; 1 warning emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error[E0277]: `Option<&i32>` doesn't implement `std::fmt::Display`
[INFO] [stdout]   --> src/main.rs:11:20
[INFO] [stdout]    |
[INFO] [stdout] 11 |     println!("{}", secret_number);
[INFO] [stdout]    |               --   ^^^^^^^^^^^^^ `Option<&i32>` cannot be formatted with the default formatter
[INFO] [stdout]    |               |
[INFO] [stdout]    |               required by this formatting parameter
[INFO] [stdout]    |
[INFO] [stdout]    = help: the trait `std::fmt::Display` is not implemented for `Option<&i32>`
[INFO] [stdout]    = note: in format strings you may be able to use `{:?}` (or {:#?} for pretty-print) instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0277`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `hello-world` (bin "hello-world" test) due to 1 previous error; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "e9d24803248ac79daa03a37e1fdf69607e3f6a062aecf12c8d84252e12c35281", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e9d24803248ac79daa03a37e1fdf69607e3f6a062aecf12c8d84252e12c35281", kill_on_drop: false }`
[INFO] [stdout] e9d24803248ac79daa03a37e1fdf69607e3f6a062aecf12c8d84252e12c35281
