[INFO] cloning repository https://github.com/opfromthestart/mips_assem
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/opfromthestart/mips_assem" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fopfromthestart%2Fmips_assem", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fopfromthestart%2Fmips_assem'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4a89529deab6eb0a5f26e4b26ed05b1c718d49b0
[INFO] checking opfromthestart/mips_assem against 895980e0290783bb09b1ccf1b11f14eb09b10430 for pr-160186
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fopfromthestart%2Fmips_assem" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/opfromthestart/mips_assem
[INFO] finished tweaking git repo https://github.com/opfromthestart/mips_assem
[INFO] tweaked toml for git repo https://github.com/opfromthestart/mips_assem written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/opfromthestart/mips_assem on toolchain 895980e0290783bb09b1ccf1b11f14eb09b10430
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+895980e0290783bb09b1ccf1b11f14eb09b10430" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/opfromthestart/mips_assem 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" "+895980e0290783bb09b1ccf1b11f14eb09b10430" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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@sha256:77db811e55d90add9212f6832c23229e3de5f1c1f9905e8cb07319ea15df73ac" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 0ad51d7ce84784f63e89b5a186a591eef44fddf2e411165e55c4276816d20496
[INFO] running `Command { std: "docker" "start" "0ad51d7ce84784f63e89b5a186a591eef44fddf2e411165e55c4276816d20496", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0ad51d7ce84784f63e89b5a186a591eef44fddf2e411165e55c4276816d20496", 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" "0ad51d7ce84784f63e89b5a186a591eef44fddf2e411165e55c4276816d20496" "/opt/rustwide/cargo-home/bin/cargo" "+895980e0290783bb09b1ccf1b11f14eb09b10430" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0ad51d7ce84784f63e89b5a186a591eef44fddf2e411165e55c4276816d20496", 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=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-w" "/opt/rustwide/workdir" "--user" "0:0" "0ad51d7ce84784f63e89b5a186a591eef44fddf2e411165e55c4276816d20496" "/opt/rustwide/cargo-home/bin/cargo" "+895980e0290783bb09b1ccf1b11f14eb09b10430" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]     Checking to-binary v0.4.0
[INFO] [stderr]     Checking hex v0.3.2
[INFO] [stderr]     Checking rev_slice v0.1.5
[INFO] [stderr]     Checking assembler_rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around match arm expression
[INFO] [stdout]    --> src/codes.rs:103:22
[INFO] [stdout]     |
[INFO] [stdout] 103 |             Ok(n) => (Ok(n)),
[INFO] [stdout]     |                      ^     ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 103 -             Ok(n) => (Ok(n)),
[INFO] [stdout] 103 +             Ok(n) => Ok(n),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around match arm expression
[INFO] [stdout]    --> src/codes.rs:104:23
[INFO] [stdout]     |
[INFO] [stdout] 104 |             Err(e) => (Err(e.to_string())),
[INFO] [stdout]     |                       ^                  ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 104 -             Err(e) => (Err(e.to_string())),
[INFO] [stdout] 104 +             Err(e) => Err(e.to_string()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around match arm expression
[INFO] [stdout]    --> src/codes.rs:134:18
[INFO] [stdout]     |
[INFO] [stdout] 134 |         Ok(n) => (Ok(n)),
[INFO] [stdout]     |                  ^     ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 134 -         Ok(n) => (Ok(n)),
[INFO] [stdout] 134 +         Ok(n) => Ok(n),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around match arm expression
[INFO] [stdout]    --> src/codes.rs:135:19
[INFO] [stdout]     |
[INFO] [stdout] 135 |         Err(e) => (Err(e.to_string())),
[INFO] [stdout]     |                   ^                  ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 135 -         Err(e) => (Err(e.to_string())),
[INFO] [stdout] 135 +         Err(e) => Err(e.to_string()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around match arm expression
[INFO] [stdout]    --> src/codes.rs:406:34
[INFO] [stdout]     |
[INFO] [stdout] 406 |                 Args::One(a1) => (a1),
[INFO] [stdout]     |                                  ^  ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 406 -                 Args::One(a1) => (a1),
[INFO] [stdout] 406 +                 Args::One(a1) => a1,
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around match arm expression
[INFO] [stdout]    --> src/codes.rs:635:34
[INFO] [stdout]     |
[INFO] [stdout] 635 |                 Args::One(a1) => (a1),
[INFO] [stdout]     |                                  ^  ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 635 -                 Args::One(a1) => (a1),
[INFO] [stdout] 635 +                 Args::One(a1) => a1,
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around match arm expression
[INFO] [stdout]    --> src/codes.rs:659:34
[INFO] [stdout]     |
[INFO] [stdout] 659 |                 Args::One(a1) => (a1),
[INFO] [stdout]     |                                  ^  ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 659 -                 Args::One(a1) => (a1),
[INFO] [stdout] 659 +                 Args::One(a1) => a1,
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::str::Split`
[INFO] [stdout]  --> src/tables.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::str::Split;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around match arm expression
[INFO] [stdout]    --> src/codes.rs:103:22
[INFO] [stdout]     |
[INFO] [stdout] 103 |             Ok(n) => (Ok(n)),
[INFO] [stdout]     |                      ^     ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 103 -             Ok(n) => (Ok(n)),
[INFO] [stdout] 103 +             Ok(n) => Ok(n),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around match arm expression
[INFO] [stdout]    --> src/codes.rs:104:23
[INFO] [stdout]     |
[INFO] [stdout] 104 |             Err(e) => (Err(e.to_string())),
[INFO] [stdout]     |                       ^                  ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 104 -             Err(e) => (Err(e.to_string())),
[INFO] [stdout] 104 +             Err(e) => Err(e.to_string()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around match arm expression
[INFO] [stdout]    --> src/codes.rs:134:18
[INFO] [stdout]     |
[INFO] [stdout] 134 |         Ok(n) => (Ok(n)),
[INFO] [stdout]     |                  ^     ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 134 -         Ok(n) => (Ok(n)),
[INFO] [stdout] 134 +         Ok(n) => Ok(n),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around match arm expression
[INFO] [stdout]    --> src/codes.rs:135:19
[INFO] [stdout]     |
[INFO] [stdout] 135 |         Err(e) => (Err(e.to_string())),
[INFO] [stdout]     |                   ^                  ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 135 -         Err(e) => (Err(e.to_string())),
[INFO] [stdout] 135 +         Err(e) => Err(e.to_string()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around match arm expression
[INFO] [stdout]    --> src/codes.rs:406:34
[INFO] [stdout]     |
[INFO] [stdout] 406 |                 Args::One(a1) => (a1),
[INFO] [stdout]     |                                  ^  ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 406 -                 Args::One(a1) => (a1),
[INFO] [stdout] 406 +                 Args::One(a1) => a1,
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around match arm expression
[INFO] [stdout]    --> src/codes.rs:635:34
[INFO] [stdout]     |
[INFO] [stdout] 635 |                 Args::One(a1) => (a1),
[INFO] [stdout]     |                                  ^  ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 635 -                 Args::One(a1) => (a1),
[INFO] [stdout] 635 +                 Args::One(a1) => a1,
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around match arm expression
[INFO] [stdout]    --> src/codes.rs:659:34
[INFO] [stdout]     |
[INFO] [stdout] 659 |                 Args::One(a1) => (a1),
[INFO] [stdout]     |                                  ^  ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 659 -                 Args::One(a1) => (a1),
[INFO] [stdout] 659 +                 Args::One(a1) => a1,
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::str::Split`
[INFO] [stdout]  --> src/tables.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::str::Split;
[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 variable: `pseudo`
[INFO] [stdout]    --> src/tables.rs:426:21
[INFO] [stdout]     |
[INFO] [stdout] 426 |                 let pseudo = instrs[0];
[INFO] [stdout]     |                     ^^^^^^ help: if this is intentional, prefix it with an underscore: `_pseudo`
[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:17:11
[INFO] [stdout]    |
[INFO] [stdout] 17 |     Label(String),
[INFO] [stdout]    |     ----- ^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 17 -     Label(String),
[INFO] [stdout] 17 +     Label(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Pseudo` is never constructed
[INFO] [stdout]   --> src/codes.rs:31:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub enum Syntax {
[INFO] [stdout]    |          ------ variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 31 |     Pseudo(Box<fn(Args<Arg>) -> Encoding>),
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/main.rs:50:12
[INFO] [stdout]    |
[INFO] [stdout] 50 |     assem: &String,
[INFO] [stdout]    |            ^^^^^^^ the lifetime is elided here
[INFO] [stdout] 51 |     start_text_opt: Option<u32>,
[INFO] [stdout] 52 | ) -> (Vec<(Line, u32, Section)>, HashMap<String, u32>, u32, u32) {
[INFO] [stdout]    |            ^^^^ the same lifetime is hidden here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 52 | ) -> (Vec<(Line<'_>, u32, Section)>, HashMap<String, u32>, u32, u32) {
[INFO] [stdout]    |                ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `pseudo`
[INFO] [stdout]    --> src/tables.rs:426:21
[INFO] [stdout]     |
[INFO] [stdout] 426 |                 let pseudo = instrs[0];
[INFO] [stdout]     |                     ^^^^^^ help: if this is intentional, prefix it with an underscore: `_pseudo`
[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:17:11
[INFO] [stdout]    |
[INFO] [stdout] 17 |     Label(String),
[INFO] [stdout]    |     ----- ^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 17 -     Label(String),
[INFO] [stdout] 17 +     Label(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Pseudo` is never constructed
[INFO] [stdout]   --> src/codes.rs:31:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub enum Syntax {
[INFO] [stdout]    |          ------ variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 31 |     Pseudo(Box<fn(Args<Arg>) -> Encoding>),
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/main.rs:50:12
[INFO] [stdout]    |
[INFO] [stdout] 50 |     assem: &String,
[INFO] [stdout]    |            ^^^^^^^ the lifetime is elided here
[INFO] [stdout] 51 |     start_text_opt: Option<u32>,
[INFO] [stdout] 52 | ) -> (Vec<(Line, u32, Section)>, HashMap<String, u32>, u32, u32) {
[INFO] [stdout]    |            ^^^^ the same lifetime is hidden here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 52 | ) -> (Vec<(Line<'_>, u32, Section)>, HashMap<String, u32>, u32, u32) {
[INFO] [stdout]    |                ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.98s
[INFO] running `Command { std: "docker" "inspect" "0ad51d7ce84784f63e89b5a186a591eef44fddf2e411165e55c4276816d20496", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0ad51d7ce84784f63e89b5a186a591eef44fddf2e411165e55c4276816d20496", kill_on_drop: false }`
[INFO] [stdout] 0ad51d7ce84784f63e89b5a186a591eef44fddf2e411165e55c4276816d20496
