[INFO] fetching crate spruce 0.3.0... [INFO] checking spruce-0.3.0 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577 [INFO] extracting crate spruce 0.3.0 into /workspace/builds/worker-6-tc2/source [INFO] removed /workspace/builds/worker-6-tc2/source/rust-toolchain [INFO] started tweaking crates.io crate spruce 0.3.0 [INFO] finished tweaking crates.io crate spruce 0.3.0 [INFO] tweaked toml for crates.io crate spruce 0.3.0 written to /workspace/builds/worker-6-tc2/source/Cargo.toml [INFO] validating manifest of crates.io crate spruce 0.3.0 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 crates.io crate spruce 0.3.0 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] cd3e05349b11d0b995ec193abf1baeb2d322fc70c479a71060c0af1e350e00bb [INFO] running `Command { std: "docker" "start" "-a" "cd3e05349b11d0b995ec193abf1baeb2d322fc70c479a71060c0af1e350e00bb", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "cd3e05349b11d0b995ec193abf1baeb2d322fc70c479a71060c0af1e350e00bb", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "cd3e05349b11d0b995ec193abf1baeb2d322fc70c479a71060c0af1e350e00bb", kill_on_drop: false }` [INFO] [stdout] cd3e05349b11d0b995ec193abf1baeb2d322fc70c479a71060c0af1e350e00bb [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] 0b0476b0657209915d9e73e89d2a860051fdf1f7f7b8bdbd48bfa5f4a2c7d6bb [INFO] running `Command { std: "docker" "start" "-a" "0b0476b0657209915d9e73e89d2a860051fdf1f7f7b8bdbd48bfa5f4a2c7d6bb", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.5 [INFO] [stderr] Compiling unicode-xid v0.2.0 [INFO] [stderr] Compiling syn v1.0.5 [INFO] [stderr] Compiling libc v0.2.64 [INFO] [stderr] Compiling autocfg v0.1.6 [INFO] [stderr] Compiling memchr v2.2.1 [INFO] [stderr] Compiling serde v1.0.101 [INFO] [stderr] Compiling arrayvec v0.4.12 [INFO] [stderr] Checking nodrop v0.1.14 [INFO] [stderr] Checking serde v0.8.23 [INFO] [stderr] Compiling strsim v0.9.2 [INFO] [stderr] Checking crossbeam-utils v0.6.6 [INFO] [stderr] Compiling ryu v1.0.2 [INFO] [stderr] Compiling fnv v1.0.6 [INFO] [stderr] Checking thread_local v0.3.6 [INFO] [stderr] Compiling memoffset v0.5.1 [INFO] [stderr] Compiling nom v4.2.3 [INFO] [stderr] Checking lazy_static v0.2.11 [INFO] [stderr] Checking regex-syntax v0.6.12 [INFO] [stderr] Checking scopeguard v1.0.0 [INFO] [stderr] Checking unicode-width v0.1.6 [INFO] [stderr] Compiling num-traits v0.2.8 [INFO] [stderr] Compiling unicode-segmentation v1.3.0 [INFO] [stderr] Checking itoa v0.4.4 [INFO] [stderr] Checking linked-hash-map v0.5.2 [INFO] [stderr] Compiling rayon-core v1.6.0 [INFO] [stderr] Checking textwrap v0.11.0 [INFO] [stderr] Compiling derive_builder v0.8.0 [INFO] [stderr] Checking ordermap v0.3.5 [INFO] [stderr] Checking vec_map v0.8.1 [INFO] [stderr] Checking rust-ini v0.13.0 [INFO] [stderr] Checking crossbeam-queue v0.1.2 [INFO] [stderr] Checking fixedbitset v0.1.9 [INFO] [stderr] Checking tint v1.0.1 [INFO] [stderr] Checking yaml-rust v0.4.3 [INFO] [stderr] Checking either v1.5.3 [INFO] [stderr] Checking aho-corasick v0.7.6 [INFO] [stderr] Checking crossbeam-epoch v0.7.2 [INFO] [stderr] Compiling heck v0.3.1 [INFO] [stderr] Checking atty v0.2.13 [INFO] [stderr] Checking num_cpus v1.10.1 [INFO] [stderr] Checking isatty v0.1.9 [INFO] [stderr] Checking directories v1.0.2 [INFO] [stderr] Checking clap v2.33.0 [INFO] [stderr] Checking crossbeam-deque v0.7.1 [INFO] [stderr] Checking petgraph v0.4.13 [INFO] [stderr] Compiling quote v1.0.2 [INFO] [stderr] Checking rayon v1.2.0 [INFO] [stderr] Checking num-traits v0.1.43 [INFO] [stderr] Checking ordered-float v1.0.2 [INFO] [stderr] Checking serde_test v0.8.23 [INFO] [stderr] Checking regex v1.3.1 [INFO] [stderr] Checking linked-hash-map v0.3.0 [INFO] [stderr] Checking serde-hjson v0.8.2 [INFO] [stderr] Checking serde_json v1.0.41 [INFO] [stderr] Checking toml v0.4.10 [INFO] [stderr] Checking serde-value v0.5.3 [INFO] [stderr] Checking config v0.9.3 [INFO] [stderr] Compiling darling_core v0.10.1 [INFO] [stderr] Compiling proc-macro-error v0.2.6 [INFO] [stderr] Compiling structopt-derive v0.3.3 [INFO] [stderr] Compiling serde_derive v1.0.101 [INFO] [stderr] Checking structopt v0.3.3 [INFO] [stderr] Compiling darling_macro v0.10.1 [INFO] [stderr] Compiling darling v0.10.1 [INFO] [stderr] Compiling derive_builder_core v0.8.0 [INFO] [stderr] Checking ptree v0.2.1 [INFO] [stderr] Checking spruce v0.3.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: field `indent_size` is never read [INFO] [stdout] --> src/config.rs:19:9 [INFO] [stdout] | [INFO] [stdout] 17 | pub struct RunningConfig { [INFO] [stdout] | ------------- field in this struct [INFO] [stdout] 18 | pub max_depth: Option, [INFO] [stdout] 19 | pub indent_size: usize, [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `RunningConfig` 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] [INFO] [stdout] [INFO] [stdout] warning: field `size_style` is never read [INFO] [stdout] --> src/config.rs:31:9 [INFO] [stdout] | [INFO] [stdout] 28 | pub struct Config { [INFO] [stdout] | ------ field in this struct [INFO] [stdout] ... [INFO] [stdout] 31 | pub size_style: Style, [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Config` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/main.rs:85:5 [INFO] [stdout] | [INFO] [stdout] 85 | / #[structopt(short="X", long = "exclude")] [INFO] [stdout] 86 | | /// Exlucde files and directories with regular expressions [INFO] [stdout] 87 | | /// [INFO] [stdout] 88 | | /// For example, in order to exclude the .git directory use `-X "\.git"` [INFO] [stdout] ... | [INFO] [stdout] 91 | | /// `-X "\.git" -X target` [INFO] [stdout] 92 | | pub exclude: Vec [INFO] [stdout] | |____________________________^ [INFO] [stdout] | [INFO] [stdout] = note: requested on the command line with `-D unmustuse-in-always-ok` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> src/usage_tree.rs:29:17 [INFO] [stdout] | [INFO] [stdout] 29 | pub fn data(&self) -> &Data { [INFO] [stdout] | ^^^^^ ^^^^^ [INFO] [stdout] | | || [INFO] [stdout] | | |the same lifetime is hidden here [INFO] [stdout] | | the same lifetime is elided here [INFO] [stdout] | the lifetime is elided 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] 29 | pub fn data(&self) -> &Data<'_> { [INFO] [stdout] | ++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> src/usage_tree.rs:83:17 [INFO] [stdout] | [INFO] [stdout] 83 | fn children(&self) -> Cow<[Self::Child]> { [INFO] [stdout] | ^^^^^ ^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here [INFO] [stdout] | | [INFO] [stdout] | the lifetime is elided here [INFO] [stdout] | [INFO] [stdout] = help: the same lifetime is referred to in inconsistent ways, making the signature confusing [INFO] [stdout] help: use `'_` for type paths [INFO] [stdout] | [INFO] [stdout] 83 | fn children(&self) -> Cow<'_, [Self::Child]> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `spruce` (bin "spruce" test) due to 1 previous error; 4 warnings emitted [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stdout] warning: field `indent_size` is never read [INFO] [stdout] --> src/config.rs:19:9 [INFO] [stdout] | [INFO] [stdout] 17 | pub struct RunningConfig { [INFO] [stdout] | ------------- field in this struct [INFO] [stdout] 18 | pub max_depth: Option, [INFO] [stdout] 19 | pub indent_size: usize, [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `RunningConfig` 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] [INFO] [stdout] [INFO] [stdout] warning: field `size_style` is never read [INFO] [stdout] --> src/config.rs:31:9 [INFO] [stdout] | [INFO] [stdout] 28 | pub struct Config { [INFO] [stdout] | ------ field in this struct [INFO] [stdout] ... [INFO] [stdout] 31 | pub size_style: Style, [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Config` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/main.rs:85:5 [INFO] [stdout] | [INFO] [stdout] 85 | / #[structopt(short="X", long = "exclude")] [INFO] [stdout] 86 | | /// Exlucde files and directories with regular expressions [INFO] [stdout] 87 | | /// [INFO] [stdout] 88 | | /// For example, in order to exclude the .git directory use `-X "\.git"` [INFO] [stdout] ... | [INFO] [stdout] 91 | | /// `-X "\.git" -X target` [INFO] [stdout] 92 | | pub exclude: Vec [INFO] [stdout] | |____________________________^ [INFO] [stdout] | [INFO] [stdout] = note: requested on the command line with `-D unmustuse-in-always-ok` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> src/usage_tree.rs:29:17 [INFO] [stdout] | [INFO] [stdout] 29 | pub fn data(&self) -> &Data { [INFO] [stdout] | ^^^^^ ^^^^^ [INFO] [stdout] | | || [INFO] [stdout] | | |the same lifetime is hidden here [INFO] [stdout] | | the same lifetime is elided here [INFO] [stdout] | the lifetime is elided 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] 29 | pub fn data(&self) -> &Data<'_> { [INFO] [stdout] | ++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> src/usage_tree.rs:83:17 [INFO] [stdout] | [INFO] [stdout] 83 | fn children(&self) -> Cow<[Self::Child]> { [INFO] [stdout] | ^^^^^ ^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here [INFO] [stdout] | | [INFO] [stdout] | the lifetime is elided here [INFO] [stdout] | [INFO] [stdout] = help: the same lifetime is referred to in inconsistent ways, making the signature confusing [INFO] [stdout] help: use `'_` for type paths [INFO] [stdout] | [INFO] [stdout] 83 | fn children(&self) -> Cow<'_, [Self::Child]> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `spruce` (bin "spruce") due to 1 previous error; 4 warnings emitted [INFO] running `Command { std: "docker" "inspect" "0b0476b0657209915d9e73e89d2a860051fdf1f7f7b8bdbd48bfa5f4a2c7d6bb", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "0b0476b0657209915d9e73e89d2a860051fdf1f7f7b8bdbd48bfa5f4a2c7d6bb", kill_on_drop: false }` [INFO] [stdout] 0b0476b0657209915d9e73e89d2a860051fdf1f7f7b8bdbd48bfa5f4a2c7d6bb