[INFO] cloning repository https://github.com/MattWindsor91/phenolphthalein [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/MattWindsor91/phenolphthalein" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMattWindsor91%2Fphenolphthalein", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMattWindsor91%2Fphenolphthalein'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] a64e8a2354aea5f7a256be6c875c214c4bcf8cc9 [INFO] checking MattWindsor91/phenolphthalein 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%2FMattWindsor91%2Fphenolphthalein" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'... [INFO] [stderr] done. [INFO] started tweaking git repo https://github.com/MattWindsor91/phenolphthalein [INFO] finished tweaking git repo https://github.com/MattWindsor91/phenolphthalein [INFO] tweaked toml for git repo https://github.com/MattWindsor91/phenolphthalein written to /workspace/builds/worker-0-tc2/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/MattWindsor91/phenolphthalein 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/MattWindsor91/phenolphthalein 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-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] cafd48150c715ecb191d13da624fc0285ece2d14a7ade014f0eb47f08f00ebba [INFO] running `Command { std: "docker" "start" "-a" "cafd48150c715ecb191d13da624fc0285ece2d14a7ade014f0eb47f08f00ebba", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "cafd48150c715ecb191d13da624fc0285ece2d14a7ade014f0eb47f08f00ebba", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "cafd48150c715ecb191d13da624fc0285ece2d14a7ade014f0eb47f08f00ebba", kill_on_drop: false }` [INFO] [stdout] cafd48150c715ecb191d13da624fc0285ece2d14a7ade014f0eb47f08f00ebba [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 44a9ed0ab655a70018c5d0505b057c642715a96ed7004e8d601b991b6f9a2ffb [INFO] running `Command { std: "docker" "start" "-a" "44a9ed0ab655a70018c5d0505b057c642715a96ed7004e8d601b991b6f9a2ffb", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.104 [INFO] [stderr] Compiling proc-macro2 v1.0.30 [INFO] [stderr] Compiling syn v1.0.80 [INFO] [stderr] Compiling crossbeam-utils v0.8.5 [INFO] [stderr] Compiling proc-macro2 v0.4.30 [INFO] [stderr] Compiling crossbeam-queue v0.3.2 [INFO] [stderr] Compiling anyhow v1.0.44 [INFO] [stderr] Checking ppv-lite86 v0.2.14 [INFO] [stderr] Compiling serde_json v1.0.68 [INFO] [stderr] Compiling cc v1.0.71 [INFO] [stderr] Checking crossbeam-epoch v0.9.5 [INFO] [stderr] Checking crossbeam-channel v0.5.1 [INFO] [stderr] Checking regex v1.5.4 [INFO] [stderr] Checking crossbeam-deque v0.8.1 [INFO] [stderr] Compiling quote v1.0.10 [INFO] [stderr] Compiling quote v0.6.13 [INFO] [stderr] Checking lock_api v0.4.5 [INFO] [stderr] Checking itoa v0.4.8 [INFO] [stderr] Compiling syn v0.15.44 [INFO] [stderr] Checking tabwriter v1.2.1 [INFO] [stderr] Checking crossbeam v0.8.1 [INFO] [stderr] Checking spin v0.9.2 [INFO] [stderr] Compiling phenolphthalein v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] Checking getrandom v0.2.3 [INFO] [stderr] Checking atty v0.2.14 [INFO] [stderr] Checking nix v0.23.0 [INFO] [stderr] Checking dirs-sys v0.3.6 [INFO] [stderr] Checking clap v2.33.3 [INFO] [stderr] Checking colored v2.0.0 [INFO] [stderr] Checking dirs v4.0.0 [INFO] [stderr] Checking rand_core v0.6.3 [INFO] [stderr] Checking rand_chacha v0.3.1 [INFO] [stderr] Checking rand v0.8.4 [INFO] [stderr] Compiling dlopen_derive v0.1.4 [INFO] [stderr] Compiling serde_derive v1.0.130 [INFO] [stderr] Compiling thiserror-impl v1.0.30 [INFO] [stderr] Checking dlopen v0.1.8 [INFO] [stderr] Checking thiserror v1.0.30 [INFO] [stderr] Checking ctrlc v3.2.1 [INFO] [stderr] Checking serde v1.0.130 [INFO] [stderr] Checking toml v0.5.8 [INFO] [stdout] warning: struct `Static` is never constructed [INFO] [stdout] --> src/api/rust/entry.rs:11:12 [INFO] [stdout] | [INFO] [stdout] 11 | pub struct Static { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [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: ControlFlow, PathBuf> [INFO] [stdout] --> src/ux/clap.rs:44:56 [INFO] [stdout] | [INFO] [stdout] 44 | .map_or_else(|| Ok(io::default_file()), |x| Ok(x.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: std::result::Result [INFO] [stdout] --> src/ux/clap.rs:44:56 [INFO] [stdout] | [INFO] [stdout] 44 | .map_or_else(|| Ok(io::default_file()), |x| Ok(x.parse()?)) [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: ControlFlow, PathBuf> [INFO] [stdout] --> src/ux/clap.rs:159:27 [INFO] [stdout] | [INFO] [stdout] 159 | Self::RunTest(input.parse()?, clap_or_default(matches)?) [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: std::result::Result [INFO] [stdout] --> src/ux/clap.rs:159:27 [INFO] [stdout] | [INFO] [stdout] 159 | Self::RunTest(input.parse()?, clap_or_default(matches)?) [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Static` is never constructed [INFO] [stdout] --> src/api/rust/entry.rs:11:12 [INFO] [stdout] | [INFO] [stdout] 11 | pub struct Static { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Env` is never constructed [INFO] [stdout] --> src/api/rust/env.rs:10:12 [INFO] [stdout] | [INFO] [stdout] 10 | pub struct Env { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Slotset` is never constructed [INFO] [stdout] --> src/api/rust/env.rs:35:12 [INFO] [stdout] | [INFO] [stdout] 35 | pub struct Slotset { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function `new` is never used [INFO] [stdout] --> src/api/rust/env.rs:55:12 [INFO] [stdout] | [INFO] [stdout] 53 | impl Slotset { [INFO] [stdout] | ------------------------------------------ associated function in this implementation [INFO] [stdout] 54 | /// Constructs a new slotset from a slot reservation. [INFO] [stdout] 55 | pub fn new(res: &slot::Reservation) -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait `SlotAtomic` is never used [INFO] [stdout] --> src/api/rust/env.rs:67:11 [INFO] [stdout] | [INFO] [stdout] 67 | pub trait SlotAtomic { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: methods `get`, `get_atomic`, `get_non_atomic`, and `set` are never used [INFO] [stdout] --> src/api/rust/env.rs:85:12 [INFO] [stdout] | [INFO] [stdout] 84 | impl, T: Copy + Default> Slotset { [INFO] [stdout] | ------------------------------------------------------- methods in this implementation [INFO] [stdout] 85 | pub fn get(&self, slot: slot::Slot) -> T { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 93 | fn get_atomic(&self, index: usize) -> T { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 97 | fn get_non_atomic(&self, index: usize) -> T { [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 108 | pub fn set(&mut self, slot: slot::Slot, v: T) { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `default_vec` is never used [INFO] [stdout] --> src/api/rust/env.rs:120:4 [INFO] [stdout] | [INFO] [stdout] 120 | fn default_vec(len: usize) -> Vec { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: ControlFlow, PathBuf> [INFO] [stdout] --> src/ux/clap.rs:44:56 [INFO] [stdout] | [INFO] [stdout] 44 | .map_or_else(|| Ok(io::default_file()), |x| Ok(x.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: std::result::Result [INFO] [stdout] --> src/ux/clap.rs:44:56 [INFO] [stdout] | [INFO] [stdout] 44 | .map_or_else(|| Ok(io::default_file()), |x| Ok(x.parse()?)) [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `phenolphthalein` (lib test) due to 4 previous errors; 1 warning emitted [INFO] [stdout] error: this type will no longer be must used: ControlFlow, PathBuf> [INFO] [stdout] --> src/ux/clap.rs:159:27 [INFO] [stdout] | [INFO] [stdout] 159 | Self::RunTest(input.parse()?, clap_or_default(matches)?) [INFO] [stdout] | ^^^^^^^^^^^^^^ [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: std::result::Result [INFO] [stdout] --> src/ux/clap.rs:159:27 [INFO] [stdout] | [INFO] [stdout] 159 | Self::RunTest(input.parse()?, clap_or_default(matches)?) [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `phenolphthalein` (lib) due to 4 previous errors; 7 warnings emitted [INFO] running `Command { std: "docker" "inspect" "44a9ed0ab655a70018c5d0505b057c642715a96ed7004e8d601b991b6f9a2ffb", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "44a9ed0ab655a70018c5d0505b057c642715a96ed7004e8d601b991b6f9a2ffb", kill_on_drop: false }` [INFO] [stdout] 44a9ed0ab655a70018c5d0505b057c642715a96ed7004e8d601b991b6f9a2ffb