[INFO] fetching crate cargo-rr 0.3.0... [INFO] checking cargo-rr-0.3.0 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577 [INFO] extracting crate cargo-rr 0.3.0 into /workspace/builds/worker-4-tc2/source [INFO] started tweaking crates.io crate cargo-rr 0.3.0 [INFO] finished tweaking crates.io crate cargo-rr 0.3.0 [INFO] tweaked toml for crates.io crate cargo-rr 0.3.0 written to /workspace/builds/worker-4-tc2/source/Cargo.toml [INFO] validating manifest of crates.io crate cargo-rr 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 cargo-rr 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-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 6ff8a6e212cf23f8849d0d7e9a547eef9880711bf7e192250c7f8e5d571be3b1 [INFO] running `Command { std: "docker" "start" "-a" "6ff8a6e212cf23f8849d0d7e9a547eef9880711bf7e192250c7f8e5d571be3b1", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "6ff8a6e212cf23f8849d0d7e9a547eef9880711bf7e192250c7f8e5d571be3b1", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "6ff8a6e212cf23f8849d0d7e9a547eef9880711bf7e192250c7f8e5d571be3b1", kill_on_drop: false }` [INFO] [stdout] 6ff8a6e212cf23f8849d0d7e9a547eef9880711bf7e192250c7f8e5d571be3b1 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 78f9198cd10701229c01dfd1537e7fd45ccc7b4eb86f66904e44bf1d708baccf [INFO] running `Command { std: "docker" "start" "-a" "78f9198cd10701229c01dfd1537e7fd45ccc7b4eb86f66904e44bf1d708baccf", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.43 [INFO] [stderr] Compiling unicode-ident v1.0.4 [INFO] [stderr] Compiling quote v1.0.21 [INFO] [stderr] Compiling syn v1.0.99 [INFO] [stderr] Compiling libc v0.2.132 [INFO] [stderr] Compiling serde_derive v1.0.144 [INFO] [stderr] Compiling serde v1.0.144 [INFO] [stderr] Compiling crossbeam-utils v0.8.11 [INFO] [stderr] Compiling thiserror v1.0.35 [INFO] [stderr] Compiling standback v0.2.17 [INFO] [stderr] Compiling crossbeam-epoch v0.9.10 [INFO] [stderr] Checking regex-syntax v0.6.27 [INFO] [stderr] Compiling num-traits v0.2.15 [INFO] [stderr] Checking memoffset v0.6.5 [INFO] [stderr] Compiling strsim v0.9.3 [INFO] [stderr] Compiling proc-macro-hack v0.5.19 [INFO] [stderr] Checking aho-corasick v0.7.19 [INFO] [stderr] Compiling num-integer v0.1.45 [INFO] [stderr] Compiling crossbeam-utils v0.7.2 [INFO] [stderr] Compiling proc-macro-error-attr v1.0.4 [INFO] [stderr] Compiling rayon-core v1.9.3 [INFO] [stderr] Compiling camino v1.1.1 [INFO] [stderr] Checking ucd-trie v0.1.5 [INFO] [stderr] Compiling serde_json v1.0.85 [INFO] [stderr] Compiling proc-macro-error v1.0.4 [INFO] [stderr] Checking tracing-core v0.1.29 [INFO] [stderr] Compiling crossbeam-queue v0.3.6 [INFO] [stderr] Compiling const_fn v0.4.9 [INFO] [stderr] Checking unicode-width v0.1.10 [INFO] [stderr] Checking crossbeam-channel v0.5.6 [INFO] [stderr] Checking itoa v1.0.3 [INFO] [stderr] Checking ryu v1.0.11 [INFO] [stderr] Compiling indexmap v1.9.1 [INFO] [stderr] Compiling rayon v1.5.3 [INFO] [stderr] Compiling time v0.2.27 [INFO] [stderr] Checking thread_local v1.1.4 [INFO] [stderr] Compiling semver v1.0.14 [INFO] [stderr] Checking iana-time-zone v0.1.48 [INFO] [stderr] Checking termcolor v1.1.3 [INFO] [stderr] Compiling derive_builder v0.9.0 [INFO] [stderr] Checking textwrap v0.11.0 [INFO] [stderr] Checking crossbeam-deque v0.8.2 [INFO] [stderr] Compiling heck v0.4.0 [INFO] [stderr] Checking either v1.8.0 [INFO] [stderr] Checking os_str_bytes v6.3.0 [INFO] [stderr] Compiling anyhow v1.0.65 [INFO] [stderr] Checking crossbeam-channel v0.4.4 [INFO] [stderr] Checking fuzzy-matcher v0.3.7 [INFO] [stderr] Checking smallvec v1.9.0 [INFO] [stderr] Checking tracing-log v0.1.3 [INFO] [stderr] Checking crossbeam v0.8.2 [INFO] [stderr] Checking clap_lex v0.2.4 [INFO] [stderr] Checking beef v0.5.2 [INFO] [stderr] Checking textwrap v0.15.1 [INFO] [stderr] Checking shlex v0.1.1 [INFO] [stderr] Compiling vte_generate_state_changes v0.1.1 [INFO] [stderr] Checking vte v0.9.0 [INFO] [stderr] Checking defer-drop v1.2.0 [INFO] [stderr] Checking regex v1.6.0 [INFO] [stderr] Checking regex-automata v0.1.10 [INFO] [stderr] Checking atty v0.2.14 [INFO] [stderr] Checking dirs-sys-next v0.1.2 [INFO] [stderr] Checking time v0.1.44 [INFO] [stderr] Checking num_cpus v1.13.1 [INFO] [stderr] Checking nix v0.24.2 [INFO] [stderr] Checking nix v0.25.0 [INFO] [stderr] Checking nix v0.19.1 [INFO] [stderr] Checking clap v2.34.0 [INFO] [stderr] Checking dirs-next v2.0.0 [INFO] [stderr] Checking chrono v0.4.22 [INFO] [stderr] Checking term v0.7.0 [INFO] [stderr] Checking env_logger v0.8.4 [INFO] [stderr] Checking matchers v0.1.0 [INFO] [stderr] Checking ctrlc v3.2.3 [INFO] [stderr] Checking timer v0.2.0 [INFO] [stderr] Checking tuikit v0.4.6 [INFO] [stderr] Compiling darling_core v0.10.2 [INFO] [stderr] Compiling thiserror-impl v1.0.35 [INFO] [stderr] Compiling tracing-attributes v0.1.22 [INFO] [stderr] Compiling time-macros-impl v0.1.2 [INFO] [stderr] Compiling clap_derive v3.2.18 [INFO] [stderr] Compiling displaydoc v0.2.3 [INFO] [stderr] Compiling derivative v2.2.0 [INFO] [stderr] Checking time-macros v0.1.1 [INFO] [stderr] Checking tracing v0.1.36 [INFO] [stderr] Checking pest v2.3.1 [INFO] [stderr] Compiling darling_macro v0.10.2 [INFO] [stderr] Checking tracing-subscriber v0.3.15 [INFO] [stderr] Compiling darling v0.10.2 [INFO] [stderr] Compiling derive_builder_core v0.9.0 [INFO] [stderr] Checking clap v3.2.22 [INFO] [stderr] Checking semver-parser v0.10.2 [INFO] [stderr] Checking skim v0.9.4 [INFO] [stderr] Checking cargo-platform v0.1.2 [INFO] [stderr] Checking semver v0.11.0 [INFO] [stderr] Checking cargo_metadata v0.13.1 [INFO] [stderr] Checking cargo_metadata v0.15.0 [INFO] [stderr] Checking seacan v0.1.0 [INFO] [stderr] Checking cargo-rr v0.3.0 (/opt/rustwide/workdir) [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/main.rs:38:5 [INFO] [stdout] | [INFO] [stdout] 38 | bin: Option, [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:40:5 [INFO] [stdout] | [INFO] [stdout] 40 | example: Option, [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/main.rs:46:5 [INFO] [stdout] | [INFO] [stdout] 46 | features: Vec, [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/main.rs:50:5 [INFO] [stdout] | [INFO] [stdout] 50 | package: Option, [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/main.rs:56:5 [INFO] [stdout] | [INFO] [stdout] 56 | rr_opts: Option, [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/main.rs:58:5 [INFO] [stdout] | [INFO] [stdout] 58 | args: Vec, [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/main.rs:65:5 [INFO] [stdout] | [INFO] [stdout] 65 | name: Option, [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/main.rs:71:5 [INFO] [stdout] | [INFO] [stdout] 71 | bin: Option, [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/main.rs:78:5 [INFO] [stdout] | [INFO] [stdout] 78 | test: Option, [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/main.rs:82:5 [INFO] [stdout] | [INFO] [stdout] 82 | example: Option, [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/main.rs:92:5 [INFO] [stdout] | [INFO] [stdout] 92 | features: Vec, [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/main.rs:96:5 [INFO] [stdout] | [INFO] [stdout] 96 | package: Option, [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/main.rs:102:5 [INFO] [stdout] | [INFO] [stdout] 102 | rr_opts: Option, [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/main.rs:109:5 [INFO] [stdout] | [INFO] [stdout] 109 | trace: Option, [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/main.rs:115:5 [INFO] [stdout] | [INFO] [stdout] 115 | rr_opts: Option, [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/main.rs:117:5 [INFO] [stdout] | [INFO] [stdout] 117 | gdb_opts: Option, [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> src/main.rs:214:13 [INFO] [stdout] | [INFO] [stdout] 214 | fn text(&self) -> Cow { [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] = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default [INFO] [stdout] help: use `'_` for type paths [INFO] [stdout] | [INFO] [stdout] 214 | fn text(&self) -> Cow<'_, str> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/main.rs:38:5 [INFO] [stdout] | [INFO] [stdout] 38 | bin: Option, [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:40:5 [INFO] [stdout] | [INFO] [stdout] 40 | example: Option, [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/main.rs:46:5 [INFO] [stdout] | [INFO] [stdout] 46 | features: Vec, [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `cargo-rr` (bin "cargo-rr" test) due to 16 previous errors; 1 warning emitted [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/main.rs:50:5 [INFO] [stdout] | [INFO] [stdout] 50 | package: Option, [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: Result [INFO] [stdout] --> src/main.rs:56:5 [INFO] [stdout] | [INFO] [stdout] 56 | rr_opts: Option, [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/main.rs:58:5 [INFO] [stdout] | [INFO] [stdout] 58 | args: Vec, [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/main.rs:65:5 [INFO] [stdout] | [INFO] [stdout] 65 | name: Option, [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/main.rs:71:5 [INFO] [stdout] | [INFO] [stdout] 71 | bin: Option, [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/main.rs:78:5 [INFO] [stdout] | [INFO] [stdout] 78 | test: Option, [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/main.rs:82:5 [INFO] [stdout] | [INFO] [stdout] 82 | example: Option, [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/main.rs:92:5 [INFO] [stdout] | [INFO] [stdout] 92 | features: Vec, [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/main.rs:96:5 [INFO] [stdout] | [INFO] [stdout] 96 | package: Option, [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/main.rs:102:5 [INFO] [stdout] | [INFO] [stdout] 102 | rr_opts: Option, [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/main.rs:109:5 [INFO] [stdout] | [INFO] [stdout] 109 | trace: Option, [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/main.rs:115:5 [INFO] [stdout] | [INFO] [stdout] 115 | rr_opts: Option, [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/main.rs:117:5 [INFO] [stdout] | [INFO] [stdout] 117 | gdb_opts: Option, [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> src/main.rs:214:13 [INFO] [stdout] | [INFO] [stdout] 214 | fn text(&self) -> Cow { [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] = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default [INFO] [stdout] help: use `'_` for type paths [INFO] [stdout] | [INFO] [stdout] 214 | fn text(&self) -> Cow<'_, str> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `cargo-rr` (bin "cargo-rr") due to 16 previous errors; 1 warning emitted [INFO] running `Command { std: "docker" "inspect" "78f9198cd10701229c01dfd1537e7fd45ccc7b4eb86f66904e44bf1d708baccf", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "78f9198cd10701229c01dfd1537e7fd45ccc7b4eb86f66904e44bf1d708baccf", kill_on_drop: false }` [INFO] [stdout] 78f9198cd10701229c01dfd1537e7fd45ccc7b4eb86f66904e44bf1d708baccf