[INFO] cloning repository https://github.com/nickmass/mass-calc [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/nickmass/mass-calc" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnickmass%2Fmass-calc", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnickmass%2Fmass-calc'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] b5a1217b742d47f87765cb51bf603af8d4a392bb [INFO] checking nickmass/mass-calc 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%2Fnickmass%2Fmass-calc" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'... [INFO] [stderr] done. [INFO] started tweaking git repo https://github.com/nickmass/mass-calc [INFO] finished tweaking git repo https://github.com/nickmass/mass-calc [INFO] tweaked toml for git repo https://github.com/nickmass/mass-calc written to /workspace/builds/worker-6-tc2/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/nickmass/mass-calc 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/nickmass/mass-calc 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-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] f81887e5eb38bb34c95072f50b48285691cd6d8561a6d05b424c506512e7cbe4 [INFO] running `Command { std: "docker" "start" "-a" "f81887e5eb38bb34c95072f50b48285691cd6d8561a6d05b424c506512e7cbe4", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "f81887e5eb38bb34c95072f50b48285691cd6d8561a6d05b424c506512e7cbe4", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "f81887e5eb38bb34c95072f50b48285691cd6d8561a6d05b424c506512e7cbe4", kill_on_drop: false }` [INFO] [stdout] f81887e5eb38bb34c95072f50b48285691cd6d8561a6d05b424c506512e7cbe4 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 135a4c10bff3da76206351b71c6caaed7f44a5453e90162a3ffc1e26ba9bc867 [INFO] running `Command { std: "docker" "start" "-a" "135a4c10bff3da76206351b71c6caaed7f44a5453e90162a3ffc1e26ba9bc867", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.82 [INFO] [stderr] Compiling getrandom v0.2.2 [INFO] [stderr] Compiling log v0.4.13 [INFO] [stderr] Checking unicode-segmentation v1.7.1 [INFO] [stderr] Checking utf8parse v0.2.0 [INFO] [stderr] Checking dirs-sys-next v0.1.2 [INFO] [stderr] Checking fs2 v0.4.3 [INFO] [stderr] Checking nix v0.19.1 [INFO] [stderr] Checking dirs-next v2.0.0 [INFO] [stderr] Checking rand_core v0.6.2 [INFO] [stderr] Checking rand_chacha v0.3.0 [INFO] [stderr] Checking rand v0.8.3 [INFO] [stderr] Checking rustyline v7.1.0 [INFO] [stderr] Checking mass-calc v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/main.rs:747:13 [INFO] [stdout] | [INFO] [stdout] 747 | Unknown(char), [INFO] [stdout] | ------- ^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this variant [INFO] [stdout] | [INFO] [stdout] = note: `Token` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis [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] 747 - Unknown(char), [INFO] [stdout] 747 + Unknown(()), [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: ControlFlow, Expression> [INFO] [stdout] --> src/main.rs:39:38 [INFO] [stdout] | [INFO] [stdout] 39 | let expression: Expression = line.parse()?; [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 [INFO] [stdout] --> src/main.rs:39:38 [INFO] [stdout] | [INFO] [stdout] 39 | let expression: Expression = line.parse()?; [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/main.rs:496:53 [INFO] [stdout] | [INFO] [stdout] 496 | fn from_str(s: &str) -> Result { [INFO] [stdout] | _____________________________________________________^ [INFO] [stdout] 497 | | let mut tokens = Vec::new(); [INFO] [stdout] 498 | | let mut chars = s.chars().fuse().peekable(); [INFO] [stdout] 499 | | let mut neg = true; [INFO] [stdout] ... | [INFO] [stdout] 669 | | Ok(Expression { tokens }) [INFO] [stdout] 670 | | } [INFO] [stdout] | |_____^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/main.rs:669:9 [INFO] [stdout] | [INFO] [stdout] 669 | Ok(Expression { tokens }) [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `mass-calc` (bin "mass-calc" test) due to 4 previous errors; 1 warning emitted [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/main.rs:747:13 [INFO] [stdout] | [INFO] [stdout] 747 | Unknown(char), [INFO] [stdout] | ------- ^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this variant [INFO] [stdout] | [INFO] [stdout] = note: `Token` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis [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] 747 - Unknown(char), [INFO] [stdout] 747 + Unknown(()), [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: ControlFlow, Expression> [INFO] [stdout] --> src/main.rs:39:38 [INFO] [stdout] | [INFO] [stdout] 39 | let expression: Expression = line.parse()?; [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 [INFO] [stdout] --> src/main.rs:39:38 [INFO] [stdout] | [INFO] [stdout] 39 | let expression: Expression = line.parse()?; [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/main.rs:496:53 [INFO] [stdout] | [INFO] [stdout] 496 | fn from_str(s: &str) -> Result { [INFO] [stdout] | _____________________________________________________^ [INFO] [stdout] 497 | | let mut tokens = Vec::new(); [INFO] [stdout] 498 | | let mut chars = s.chars().fuse().peekable(); [INFO] [stdout] 499 | | let mut neg = true; [INFO] [stdout] ... | [INFO] [stdout] 669 | | Ok(Expression { tokens }) [INFO] [stdout] 670 | | } [INFO] [stdout] | |_____^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/main.rs:669:9 [INFO] [stdout] | [INFO] [stdout] 669 | Ok(Expression { tokens }) [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `mass-calc` (bin "mass-calc") due to 4 previous errors; 1 warning emitted [INFO] running `Command { std: "docker" "inspect" "135a4c10bff3da76206351b71c6caaed7f44a5453e90162a3ffc1e26ba9bc867", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "135a4c10bff3da76206351b71c6caaed7f44a5453e90162a3ffc1e26ba9bc867", kill_on_drop: false }` [INFO] [stdout] 135a4c10bff3da76206351b71c6caaed7f44a5453e90162a3ffc1e26ba9bc867