[INFO] fetching crate fcc 0.4.2... [INFO] checking fcc-0.4.2 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577 [INFO] extracting crate fcc 0.4.2 into /workspace/builds/worker-3-tc2/source [INFO] started tweaking crates.io crate fcc 0.4.2 [INFO] finished tweaking crates.io crate fcc 0.4.2 [INFO] tweaked toml for crates.io crate fcc 0.4.2 written to /workspace/builds/worker-3-tc2/source/Cargo.toml [INFO] validating manifest of crates.io crate fcc 0.4.2 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 fcc 0.4.2 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-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 97877ff1f15450ae284bb07ca3f746ef51f0397aa0928204d65efbe2ed00eda4 [INFO] running `Command { std: "docker" "start" "-a" "97877ff1f15450ae284bb07ca3f746ef51f0397aa0928204d65efbe2ed00eda4", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "97877ff1f15450ae284bb07ca3f746ef51f0397aa0928204d65efbe2ed00eda4", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "97877ff1f15450ae284bb07ca3f746ef51f0397aa0928204d65efbe2ed00eda4", kill_on_drop: false }` [INFO] [stdout] 97877ff1f15450ae284bb07ca3f746ef51f0397aa0928204d65efbe2ed00eda4 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 23ffa01dfc675d6a569e4c6f716d4bf49f93b4ab06e080e3a2c6800d5d0cc331 [INFO] running `Command { std: "docker" "start" "-a" "23ffa01dfc675d6a569e4c6f716d4bf49f93b4ab06e080e3a2c6800d5d0cc331", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.24 [INFO] [stderr] Compiling syn v1.0.64 [INFO] [stderr] Compiling unicode-segmentation v1.7.1 [INFO] [stderr] Checking regex-syntax v0.6.18 [INFO] [stderr] Checking ppv-lite86 v0.2.8 [INFO] [stderr] Checking thread_local v1.0.1 [INFO] [stderr] Checking predicates-core v1.0.0 [INFO] [stderr] Checking getrandom v0.1.14 [INFO] [stderr] Compiling num-traits v0.2.12 [INFO] [stderr] Checking atty v0.2.14 [INFO] [stderr] Checking aho-corasick v0.7.13 [INFO] [stderr] Checking difference v2.0.0 [INFO] [stderr] Checking treeline v0.1.0 [INFO] [stderr] Checking byteseeker v0.2.0 [INFO] [stderr] Checking wait-timeout v0.2.0 [INFO] [stderr] Checking remove_dir_all v0.5.3 [INFO] [stderr] Checking clap v2.33.3 [INFO] [stderr] Checking predicates-tree v1.0.0 [INFO] [stderr] Checking rand_core v0.5.1 [INFO] [stderr] Compiling heck v0.3.2 [INFO] [stderr] Checking rand_chacha v0.2.2 [INFO] [stderr] Compiling quote v1.0.9 [INFO] [stderr] Checking rand v0.7.3 [INFO] [stderr] Checking float-cmp v0.6.0 [INFO] [stderr] Compiling proc-macro-error-attr v1.0.4 [INFO] [stderr] Checking tempfile v3.1.0 [INFO] [stderr] Checking regex v1.3.9 [INFO] [stderr] Checking predicates v1.0.4 [INFO] [stderr] Checking assert_cmd v1.0.1 [INFO] [stderr] Compiling proc-macro-error v1.0.4 [INFO] [stderr] Compiling thiserror-impl v1.0.24 [INFO] [stderr] Compiling structopt-derive v0.4.14 [INFO] [stderr] Checking thiserror v1.0.24 [INFO] [stderr] Checking admerge v0.1.3 [INFO] [stderr] Checking structopt v0.3.21 [INFO] [stderr] Checking fcc v0.4.2 (/opt/rustwide/workdir) [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/main.rs:85:5 [INFO] [stdout] | [INFO] [stdout] 85 | / /// Sets the skip mode [INFO] [stdout] 86 | | #[structopt( [INFO] [stdout] 87 | | long, [INFO] [stdout] 88 | | short = "m", [INFO] [stdout] ... | [INFO] [stdout] 93 | | )] [INFO] [stdout] 94 | | skip_mode: String, [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:95:5 [INFO] [stdout] | [INFO] [stdout] 95 | / /// Fills some padding between each source [INFO] [stdout] 96 | | #[structopt(long, short = "p", display_order = 10, value_name = "STRING")] [INFO] [stdout] 97 | | padding: Option, [INFO] [stdout] | |___________________________^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/main.rs:98:5 [INFO] [stdout] | [INFO] [stdout] 98 | / /// Controls where paddings should be inserted into. [INFO] [stdout] 99 | | #[structopt( [INFO] [stdout] 100 | | long, [INFO] [stdout] 101 | | short = "P", [INFO] [stdout] ... | [INFO] [stdout] 106 | | )] [INFO] [stdout] 107 | | pad_mode: String, [INFO] [stdout] | |____________________^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/main.rs:111:5 [INFO] [stdout] | [INFO] [stdout] 111 | / /// The style of newline, either unix-style `LF` or dos-style `CRLF` [INFO] [stdout] 112 | | #[structopt( [INFO] [stdout] 113 | | long, [INFO] [stdout] 114 | | short = "N", [INFO] [stdout] ... | [INFO] [stdout] 119 | | )] [INFO] [stdout] 120 | | newline_style: String, [INFO] [stdout] | |_________________________^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `fcc` (bin "fcc" test) due to 4 previous errors [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:85:5 [INFO] [stdout] | [INFO] [stdout] 85 | / /// Sets the skip mode [INFO] [stdout] 86 | | #[structopt( [INFO] [stdout] 87 | | long, [INFO] [stdout] 88 | | short = "m", [INFO] [stdout] ... | [INFO] [stdout] 93 | | )] [INFO] [stdout] 94 | | skip_mode: String, [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:95:5 [INFO] [stdout] | [INFO] [stdout] 95 | / /// Fills some padding between each source [INFO] [stdout] 96 | | #[structopt(long, short = "p", display_order = 10, value_name = "STRING")] [INFO] [stdout] 97 | | padding: Option, [INFO] [stdout] | |___________________________^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/main.rs:98:5 [INFO] [stdout] | [INFO] [stdout] 98 | / /// Controls where paddings should be inserted into. [INFO] [stdout] 99 | | #[structopt( [INFO] [stdout] 100 | | long, [INFO] [stdout] 101 | | short = "P", [INFO] [stdout] ... | [INFO] [stdout] 106 | | )] [INFO] [stdout] 107 | | pad_mode: String, [INFO] [stdout] | |____________________^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/main.rs:111:5 [INFO] [stdout] | [INFO] [stdout] 111 | / /// The style of newline, either unix-style `LF` or dos-style `CRLF` [INFO] [stdout] 112 | | #[structopt( [INFO] [stdout] 113 | | long, [INFO] [stdout] 114 | | short = "N", [INFO] [stdout] ... | [INFO] [stdout] 119 | | )] [INFO] [stdout] 120 | | newline_style: String, [INFO] [stdout] | |_________________________^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `fcc` (bin "fcc") due to 4 previous errors [INFO] running `Command { std: "docker" "inspect" "23ffa01dfc675d6a569e4c6f716d4bf49f93b4ab06e080e3a2c6800d5d0cc331", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "23ffa01dfc675d6a569e4c6f716d4bf49f93b4ab06e080e3a2c6800d5d0cc331", kill_on_drop: false }` [INFO] [stdout] 23ffa01dfc675d6a569e4c6f716d4bf49f93b4ab06e080e3a2c6800d5d0cc331