[INFO] cloning repository https://github.com/fee1-dead/stega [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/fee1-dead/stega" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffee1-dead%2Fstega", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffee1-dead%2Fstega'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 9ce8c08e067688fca13fdf8378de6082ccbf13f3 [INFO] checking fee1-dead/stega 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%2Ffee1-dead%2Fstega" "/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/fee1-dead/stega [INFO] finished tweaking git repo https://github.com/fee1-dead/stega [INFO] tweaked toml for git repo https://github.com/fee1-dead/stega written to /workspace/builds/worker-6-tc2/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/fee1-dead/stega 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/fee1-dead/stega 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] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Blocking waiting for file lock on package cache [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] 91bff516ed2218add94428d04790d0531c3fc84c51d7b4d498b8aa9387ec8d3c [INFO] running `Command { std: "docker" "start" "-a" "91bff516ed2218add94428d04790d0531c3fc84c51d7b4d498b8aa9387ec8d3c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "91bff516ed2218add94428d04790d0531c3fc84c51d7b4d498b8aa9387ec8d3c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "91bff516ed2218add94428d04790d0531c3fc84c51d7b4d498b8aa9387ec8d3c", kill_on_drop: false }` [INFO] [stdout] 91bff516ed2218add94428d04790d0531c3fc84c51d7b4d498b8aa9387ec8d3c [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] 0ea78a56b859413c615f1024570687a691bebcbe77af6a22e4ac0c1ef163977b [INFO] running `Command { std: "docker" "start" "-a" "0ea78a56b859413c615f1024570687a691bebcbe77af6a22e4ac0c1ef163977b", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.98 [INFO] [stderr] Compiling proc-macro2 v1.0.28 [INFO] [stderr] Compiling crossbeam-utils v0.8.5 [INFO] [stderr] Compiling memoffset v0.6.4 [INFO] [stderr] Compiling syn v1.0.74 [INFO] [stderr] Compiling crossbeam-epoch v0.9.5 [INFO] [stderr] Compiling rayon-core v1.9.1 [INFO] [stderr] Compiling rayon v1.5.1 [INFO] [stderr] Compiling serde v1.0.127 [INFO] [stderr] Compiling proc-macro-error-attr v1.0.4 [INFO] [stderr] Compiling proc-macro-error v1.0.4 [INFO] [stderr] Checking tracing-core v0.1.18 [INFO] [stderr] Compiling miniz_oxide v0.4.4 [INFO] [stderr] Compiling log v0.4.14 [INFO] [stderr] Checking regex-syntax v0.6.25 [INFO] [stderr] Compiling indexmap v1.7.0 [INFO] [stderr] Compiling unicode-segmentation v1.8.0 [INFO] [stderr] Compiling radium v0.6.2 [INFO] [stderr] Compiling serde_json v1.0.66 [INFO] [stderr] Checking weezl v0.1.5 [INFO] [stderr] Checking deflate v0.8.6 [INFO] [stderr] Checking itoa v0.4.7 [INFO] [stderr] Checking wyz v0.4.0 [INFO] [stderr] Checking textwrap v0.12.1 [INFO] [stderr] Checking thread_local v1.1.3 [INFO] [stderr] Checking sharded-slab v0.1.3 [INFO] [stderr] Compiling heck v0.3.3 [INFO] [stderr] Checking termcolor v1.1.2 [INFO] [stderr] Checking os_str_bytes v2.4.0 [INFO] [stderr] Checking bytemuck v1.7.2 [INFO] [stderr] Checking funty v1.2.0 [INFO] [stderr] Checking gif v0.11.2 [INFO] [stderr] Checking crossbeam-channel v0.5.1 [INFO] [stderr] Checking tracing-log v0.1.2 [INFO] [stderr] Checking png v0.16.8 [INFO] [stderr] Compiling quote v1.0.9 [INFO] [stderr] Checking num_cpus v1.13.0 [INFO] [stderr] Checking chrono v0.4.19 [INFO] [stderr] Checking atty v0.2.14 [INFO] [stderr] Checking bitvec v0.22.3 [INFO] [stderr] Checking crossbeam-deque v0.8.1 [INFO] [stderr] Checking regex-automata v0.1.10 [INFO] [stderr] Checking regex v1.5.4 [INFO] [stderr] Checking matchers v0.0.1 [INFO] [stderr] Checking tracing-serde v0.1.2 [INFO] [stderr] Checking jpeg-decoder v0.1.22 [INFO] [stderr] Checking tiff v0.6.1 [INFO] [stderr] Checking image v0.23.14 [INFO] [stderr] Compiling tracing-attributes v0.1.15 [INFO] [stderr] Compiling clap_derive v3.0.0-beta.2 [INFO] [stderr] Checking tracing v0.1.26 [INFO] [stderr] Checking clap v3.0.0-beta.2 [INFO] [stderr] Checking tracing-subscriber v0.2.19 [INFO] [stderr] Checking stega v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] error: this type will no longer be must used: std::result::Result [INFO] [stdout] --> src/main.rs:24:5 [INFO] [stdout] | [INFO] [stdout] 24 | input: 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: std::result::Result [INFO] [stdout] --> src/main.rs:25:5 [INFO] [stdout] | [INFO] [stdout] 25 | output: String, [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: std::result::Result [INFO] [stdout] --> src/main.rs:32:18 [INFO] [stdout] | [INFO] [stdout] 32 | EncodeText { text: String }, [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: std::result::Result [INFO] [stdout] --> src/main.rs:34:18 [INFO] [stdout] | [INFO] [stdout] 34 | EncodeFile { path: String }, [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: std::ops::ControlFlow, u8> [INFO] [stdout] --> src/utils.rs:37:56 [INFO] [stdout] | [INFO] [stdout] 37 | fn branch(self) -> ControlFlow { [INFO] [stdout] | ________________________________________________________^ [INFO] [stdout] 38 | | ControlFlow::Continue(self.0) [INFO] [stdout] 39 | | } [INFO] [stdout] | |_____^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: std::ops::ControlFlow, u8> [INFO] [stdout] --> src/utils.rs:38:9 [INFO] [stdout] | [INFO] [stdout] 38 | ControlFlow::Continue(self.0) [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `stega` (bin "stega") due to 6 previous errors [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/main.rs:24:5 [INFO] [stdout] | [INFO] [stdout] 24 | input: 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: std::result::Result [INFO] [stdout] --> src/main.rs:25:5 [INFO] [stdout] | [INFO] [stdout] 25 | output: String, [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: std::result::Result [INFO] [stdout] --> src/main.rs:32:18 [INFO] [stdout] | [INFO] [stdout] 32 | EncodeText { text: String }, [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: std::result::Result [INFO] [stdout] --> src/main.rs:34:18 [INFO] [stdout] | [INFO] [stdout] 34 | EncodeFile { path: String }, [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: std::ops::ControlFlow, u8> [INFO] [stdout] --> src/utils.rs:37:56 [INFO] [stdout] | [INFO] [stdout] 37 | fn branch(self) -> ControlFlow { [INFO] [stdout] | ________________________________________________________^ [INFO] [stdout] 38 | | ControlFlow::Continue(self.0) [INFO] [stdout] 39 | | } [INFO] [stdout] | |_____^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: std::ops::ControlFlow, u8> [INFO] [stdout] --> src/utils.rs:38:9 [INFO] [stdout] | [INFO] [stdout] 38 | ControlFlow::Continue(self.0) [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `stega` (bin "stega" test) due to 6 previous errors [INFO] running `Command { std: "docker" "inspect" "0ea78a56b859413c615f1024570687a691bebcbe77af6a22e4ac0c1ef163977b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "0ea78a56b859413c615f1024570687a691bebcbe77af6a22e4ac0c1ef163977b", kill_on_drop: false }` [INFO] [stdout] 0ea78a56b859413c615f1024570687a691bebcbe77af6a22e4ac0c1ef163977b