[INFO] cloning repository https://github.com/niceDeve/rust_banking_system
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/niceDeve/rust_banking_system" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FniceDeve%2Frust_banking_system", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FniceDeve%2Frust_banking_system'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a97237579b5b43bcd1a1bcefe2e10004a7486ca2
[INFO] checking niceDeve/rust_banking_system against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FniceDeve%2Frust_banking_system" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/niceDeve/rust_banking_system
[INFO] finished tweaking git repo https://github.com/niceDeve/rust_banking_system
[INFO] tweaked toml for git repo https://github.com/niceDeve/rust_banking_system written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/niceDeve/rust_banking_system on toolchain 4f260f0f20b3133d20cfb50353c0221943af5796
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/niceDeve/rust_banking_system 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" "+4f260f0f20b3133d20cfb50353c0221943af5796" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9ddcab5a8849e5926955afb0adee39257431ea25b65a54e419dafe5a7c87a597
[INFO] running `Command { std: "docker" "start" "-a" "9ddcab5a8849e5926955afb0adee39257431ea25b65a54e419dafe5a7c87a597", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9ddcab5a8849e5926955afb0adee39257431ea25b65a54e419dafe5a7c87a597", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9ddcab5a8849e5926955afb0adee39257431ea25b65a54e419dafe5a7c87a597", kill_on_drop: false }`
[INFO] [stdout] 9ddcab5a8849e5926955afb0adee39257431ea25b65a54e419dafe5a7c87a597
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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 -Dunmustuse_in_always_ok" "-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c6a14b868ef9f2f57a1ba438dbec97a10a093ea36af5eb1e8bd19627de815ea4
[INFO] running `Command { std: "docker" "start" "-a" "c6a14b868ef9f2f57a1ba438dbec97a10a093ea36af5eb1e8bd19627de815ea4", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.178
[INFO] [stderr]    Compiling serde_json v1.0.104
[INFO] [stderr]    Compiling serde_derive v1.0.178
[INFO] [stderr]     Checking ryu v1.0.15
[INFO] [stderr]     Checking rust_banking_system v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/utils.rs:7:14
[INFO] [stdout]    |
[INFO] [stdout]  7 |       ($t:tt) => {{
[INFO] [stdout]    |  _________________^
[INFO] [stdout]  8 | |             let mut temp = String::new();
[INFO] [stdout]  9 | |             std::io::stdin().read_line(&mut temp).expect("fail");
[INFO] [stdout] 10 | |             temp.trim().parse::<$t>()
[INFO] [stdout] 11 | |     }};
[INFO] [stdout]    | |_____^
[INFO] [stdout] ...
[INFO] [stdout] 37 |       let res = read_t!(String).unwrap();
[INFO] [stdout]    |                 --------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout]    = note: this error originates in the macro `read_t` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/utils.rs:10:4
[INFO] [stdout]    |
[INFO] [stdout] 10 |             temp.trim().parse::<$t>()
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 37 |     let res = read_t!(String).unwrap();
[INFO] [stdout]    |               --------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `read_t` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rust_banking_system` (bin "rust_banking_system" test) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/utils.rs:7:14
[INFO] [stdout]    |
[INFO] [stdout]  7 |       ($t:tt) => {{
[INFO] [stdout]    |  _________________^
[INFO] [stdout]  8 | |             let mut temp = String::new();
[INFO] [stdout]  9 | |             std::io::stdin().read_line(&mut temp).expect("fail");
[INFO] [stdout] 10 | |             temp.trim().parse::<$t>()
[INFO] [stdout] 11 | |     }};
[INFO] [stdout]    | |_____^
[INFO] [stdout] ...
[INFO] [stdout] 37 |       let res = read_t!(String).unwrap();
[INFO] [stdout]    |                 --------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout]    = note: this error originates in the macro `read_t` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/utils.rs:10:4
[INFO] [stdout]    |
[INFO] [stdout] 10 |             temp.trim().parse::<$t>()
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 37 |     let res = read_t!(String).unwrap();
[INFO] [stdout]    |               --------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `read_t` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rust_banking_system` (bin "rust_banking_system") due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "c6a14b868ef9f2f57a1ba438dbec97a10a093ea36af5eb1e8bd19627de815ea4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c6a14b868ef9f2f57a1ba438dbec97a10a093ea36af5eb1e8bd19627de815ea4", kill_on_drop: false }`
[INFO] [stdout] c6a14b868ef9f2f57a1ba438dbec97a10a093ea36af5eb1e8bd19627de815ea4