[INFO] cloning repository https://github.com/grant0417/assembler6502
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/grant0417/assembler6502" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgrant0417%2Fassembler6502", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgrant0417%2Fassembler6502'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f39333d2da7009f73b901999a45e47a73e817d8c
[INFO] checking grant0417/assembler6502 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%2Fgrant0417%2Fassembler6502" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/grant0417/assembler6502
[INFO] finished tweaking git repo https://github.com/grant0417/assembler6502
[INFO] tweaked toml for git repo https://github.com/grant0417/assembler6502 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/grant0417/assembler6502 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/grant0417/assembler6502 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-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 0c551a9db2b2ad096f365a76bfddc9b6cfe75defbdbc6e8e5133478e3d7a8bcc
[INFO] running `Command { std: "docker" "start" "-a" "0c551a9db2b2ad096f365a76bfddc9b6cfe75defbdbc6e8e5133478e3d7a8bcc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0c551a9db2b2ad096f365a76bfddc9b6cfe75defbdbc6e8e5133478e3d7a8bcc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0c551a9db2b2ad096f365a76bfddc9b6cfe75defbdbc6e8e5133478e3d7a8bcc", kill_on_drop: false }`
[INFO] [stdout] 0c551a9db2b2ad096f365a76bfddc9b6cfe75defbdbc6e8e5133478e3d7a8bcc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 5ff223fc6d2caa4c55d9d731690ed2b1d8e039f4475b8aa1cdfaa5d2ae481115
[INFO] running `Command { std: "docker" "start" "-a" "5ff223fc6d2caa4c55d9d731690ed2b1d8e039f4475b8aa1cdfaa5d2ae481115", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.68
[INFO] [stderr]     Checking unicode-width v0.1.7
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking vec_map v0.8.1
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]     Checking assembler6502 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `name` is never read
[INFO] [stdout]    --> src/main.rs:110:5
[INFO] [stdout]     |
[INFO] [stdout] 108 | struct Label {
[INFO] [stdout]     |        ----- field in this struct
[INFO] [stdout] 109 |     /// The string representation of a label
[INFO] [stdout] 110 |     name: String,
[INFO] [stdout]     |     ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Label` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]    --> src/main.rs:249:48
[INFO] [stdout]     |
[INFO] [stdout] 249 |             machine_code.insert_byte(line_num, "*".parse().unwrap());
[INFO] [stdout]     |                                                ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]    --> src/main.rs:250:48
[INFO] [stdout]     |
[INFO] [stdout] 250 |             machine_code.insert_byte(line_num, (&line[1]).parse().unwrap());
[INFO] [stdout]     |                                                ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/main.rs:256:86
[INFO] [stdout]     |
[INFO] [stdout] 256 |             let op = OPS.iter().position(|&s| s == op_name).unwrap_or_else(|| panic!(format!("Unknow opcode: {}", op_name)));
[INFO] [stdout]     |                                                                                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this usage of `panic!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout]     = note: the `panic!()` macro supports formatting, so there's no need for the `format!()` macro here
[INFO] [stdout]     = note: `#[warn(non_fmt_panics)]` (part of `#[warn(rust_2021_compatibility)]`) on by default
[INFO] [stdout] help: remove the `format!(..)` macro call
[INFO] [stdout]     |
[INFO] [stdout] 256 -             let op = OPS.iter().position(|&s| s == op_name).unwrap_or_else(|| panic!(format!("Unknow opcode: {}", op_name)));
[INFO] [stdout] 256 +             let op = OPS.iter().position(|&s| s == op_name).unwrap_or_else(|| panic!("Unknow opcode: {}", op_name));
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]    --> src/main.rs:368:64
[INFO] [stdout]     |
[INFO] [stdout] 368 | ...                   machine_code.insert_byte(line_num, (&address_str).parse().unwrap());
[INFO] [stdout]     |                                                          ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]    --> src/main.rs:369:64
[INFO] [stdout]     |
[INFO] [stdout] 369 | ...                   machine_code.insert_byte(line_num, "00".parse().unwrap());
[INFO] [stdout]     |                                                          ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/main.rs:375:32
[INFO] [stdout]     |
[INFO] [stdout] 375 |                         panic!(format!("Op: {} Addr: {}, Size: {:?}", &op_name, &address, &num_bit))
[INFO] [stdout]     |                                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this usage of `panic!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout]     = note: the `panic!()` macro supports formatting, so there's no need for the `format!()` macro here
[INFO] [stdout] help: remove the `format!(..)` macro call
[INFO] [stdout]     |
[INFO] [stdout] 375 -                         panic!(format!("Op: {} Addr: {}, Size: {:?}", &op_name, &address, &num_bit))
[INFO] [stdout] 375 +                         panic!("Op: {} Addr: {}, Size: {:?}", &op_name, &address, &num_bit)
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/main.rs:493:24
[INFO] [stdout]     |
[INFO] [stdout] 493 |                   panic!(format!("Unknown value: {}\n\
[INFO] [stdout]     |  ________________________^
[INFO] [stdout] 494 | |                                 Perhaps you meant to define a value or are using the wrong prefix.",
[INFO] [stdout] 495 | |                                 num))
[INFO] [stdout]     | |____________________________________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this usage of `panic!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout]     = note: the `panic!()` macro supports formatting, so there's no need for the `format!()` macro here
[INFO] [stdout] help: remove the `format!(..)` macro call
[INFO] [stdout]     |
[INFO] [stdout] 493 ~                 panic!("Unknown value: {}\n\
[INFO] [stdout] 494 |                                 Perhaps you meant to define a value or are using the wrong prefix.",
[INFO] [stdout] 495 ~                                 num)
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `assembler6502` (bin "assembler6502" test) due to 4 previous errors; 4 warnings emitted
[INFO] [stdout] warning: field `name` is never read
[INFO] [stdout]    --> src/main.rs:110:5
[INFO] [stdout]     |
[INFO] [stdout] 108 | struct Label {
[INFO] [stdout]     |        ----- field in this struct
[INFO] [stdout] 109 |     /// The string representation of a label
[INFO] [stdout] 110 |     name: String,
[INFO] [stdout]     |     ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Label` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]    --> src/main.rs:249:48
[INFO] [stdout]     |
[INFO] [stdout] 249 |             machine_code.insert_byte(line_num, "*".parse().unwrap());
[INFO] [stdout]     |                                                ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `assembler6502` (bin "assembler6502") due to 4 previous errors; 4 warnings emitted
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]    --> src/main.rs:250:48
[INFO] [stdout]     |
[INFO] [stdout] 250 |             machine_code.insert_byte(line_num, (&line[1]).parse().unwrap());
[INFO] [stdout]     |                                                ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/main.rs:256:86
[INFO] [stdout]     |
[INFO] [stdout] 256 |             let op = OPS.iter().position(|&s| s == op_name).unwrap_or_else(|| panic!(format!("Unknow opcode: {}", op_name)));
[INFO] [stdout]     |                                                                                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this usage of `panic!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout]     = note: the `panic!()` macro supports formatting, so there's no need for the `format!()` macro here
[INFO] [stdout]     = note: `#[warn(non_fmt_panics)]` (part of `#[warn(rust_2021_compatibility)]`) on by default
[INFO] [stdout] help: remove the `format!(..)` macro call
[INFO] [stdout]     |
[INFO] [stdout] 256 -             let op = OPS.iter().position(|&s| s == op_name).unwrap_or_else(|| panic!(format!("Unknow opcode: {}", op_name)));
[INFO] [stdout] 256 +             let op = OPS.iter().position(|&s| s == op_name).unwrap_or_else(|| panic!("Unknow opcode: {}", op_name));
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]    --> src/main.rs:368:64
[INFO] [stdout]     |
[INFO] [stdout] 368 | ...                   machine_code.insert_byte(line_num, (&address_str).parse().unwrap());
[INFO] [stdout]     |                                                          ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]    --> src/main.rs:369:64
[INFO] [stdout]     |
[INFO] [stdout] 369 | ...                   machine_code.insert_byte(line_num, "00".parse().unwrap());
[INFO] [stdout]     |                                                          ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/main.rs:375:32
[INFO] [stdout]     |
[INFO] [stdout] 375 |                         panic!(format!("Op: {} Addr: {}, Size: {:?}", &op_name, &address, &num_bit))
[INFO] [stdout]     |                                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this usage of `panic!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout]     = note: the `panic!()` macro supports formatting, so there's no need for the `format!()` macro here
[INFO] [stdout] help: remove the `format!(..)` macro call
[INFO] [stdout]     |
[INFO] [stdout] 375 -                         panic!(format!("Op: {} Addr: {}, Size: {:?}", &op_name, &address, &num_bit))
[INFO] [stdout] 375 +                         panic!("Op: {} Addr: {}, Size: {:?}", &op_name, &address, &num_bit)
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/main.rs:493:24
[INFO] [stdout]     |
[INFO] [stdout] 493 |                   panic!(format!("Unknown value: {}\n\
[INFO] [stdout]     |  ________________________^
[INFO] [stdout] 494 | |                                 Perhaps you meant to define a value or are using the wrong prefix.",
[INFO] [stdout] 495 | |                                 num))
[INFO] [stdout]     | |____________________________________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this usage of `panic!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout]     = note: the `panic!()` macro supports formatting, so there's no need for the `format!()` macro here
[INFO] [stdout] help: remove the `format!(..)` macro call
[INFO] [stdout]     |
[INFO] [stdout] 493 ~                 panic!("Unknown value: {}\n\
[INFO] [stdout] 494 |                                 Perhaps you meant to define a value or are using the wrong prefix.",
[INFO] [stdout] 495 ~                                 num)
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "5ff223fc6d2caa4c55d9d731690ed2b1d8e039f4475b8aa1cdfaa5d2ae481115", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5ff223fc6d2caa4c55d9d731690ed2b1d8e039f4475b8aa1cdfaa5d2ae481115", kill_on_drop: false }`
[INFO] [stdout] 5ff223fc6d2caa4c55d9d731690ed2b1d8e039f4475b8aa1cdfaa5d2ae481115
