[INFO] cloning repository https://github.com/syuzuki/serialcat [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/syuzuki/serialcat" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsyuzuki%2Fserialcat", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsyuzuki%2Fserialcat'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] ff42aaabaf763d5a83744f1f9d0e4907e7296147 [INFO] checking syuzuki/serialcat 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%2Fsyuzuki%2Fserialcat" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'... [INFO] [stderr] done. [INFO] started tweaking git repo https://github.com/syuzuki/serialcat [INFO] finished tweaking git repo https://github.com/syuzuki/serialcat [INFO] tweaked toml for git repo https://github.com/syuzuki/serialcat written to /workspace/builds/worker-2-tc2/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/syuzuki/serialcat 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/syuzuki/serialcat 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-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] e49f4d9ec01f6c85483397bca488b2bccef29b5f828b6c48949d2fd960ad121d [INFO] running `Command { std: "docker" "start" "-a" "e49f4d9ec01f6c85483397bca488b2bccef29b5f828b6c48949d2fd960ad121d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "e49f4d9ec01f6c85483397bca488b2bccef29b5f828b6c48949d2fd960ad121d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e49f4d9ec01f6c85483397bca488b2bccef29b5f828b6c48949d2fd960ad121d", kill_on_drop: false }` [INFO] [stdout] e49f4d9ec01f6c85483397bca488b2bccef29b5f828b6c48949d2fd960ad121d [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 532641356f887a15f7720ce61268a039cf05649ca5bfd0f0e9cdb14a861e761c [INFO] running `Command { std: "docker" "start" "-a" "532641356f887a15f7720ce61268a039cf05649ca5bfd0f0e9cdb14a861e761c", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.66 [INFO] [stderr] Compiling proc-macro2 v1.0.6 [INFO] [stderr] Compiling unicode-xid v0.2.0 [INFO] [stderr] Compiling syn v1.0.11 [INFO] [stderr] Compiling log v0.4.8 [INFO] [stderr] Compiling pkg-config v0.3.17 [INFO] [stderr] Checking futures-core v0.3.1 [INFO] [stderr] Compiling proc-macro-nested v0.1.3 [INFO] [stderr] Compiling nix v0.14.1 [INFO] [stderr] Checking futures-sink v0.3.1 [INFO] [stderr] Compiling unicode-segmentation v1.6.0 [INFO] [stderr] Checking futures-task v0.3.1 [INFO] [stderr] Checking arc-swap v0.4.4 [INFO] [stderr] Checking futures-io v0.3.1 [INFO] [stderr] Checking pin-utils v0.1.0-alpha.4 [INFO] [stderr] Checking textwrap v0.11.0 [INFO] [stderr] Checking fnv v1.0.6 [INFO] [stderr] Compiling anyhow v1.0.26 [INFO] [stderr] Checking bytes v0.5.3 [INFO] [stderr] Checking pin-project-lite v0.1.1 [INFO] [stderr] Checking futures-channel v0.3.1 [INFO] [stderr] Compiling heck v0.3.1 [INFO] [stderr] Compiling libudev-sys v0.1.4 [INFO] [stderr] Checking net2 v0.2.33 [INFO] [stderr] Checking iovec v0.1.4 [INFO] [stderr] Checking atty v0.2.13 [INFO] [stderr] Checking signal-hook-registry v1.2.0 [INFO] [stderr] Checking num_cpus v1.11.1 [INFO] [stderr] Checking clap v2.33.0 [INFO] [stderr] Checking mio v0.6.21 [INFO] [stderr] Compiling quote v1.0.2 [INFO] [stderr] Checking libudev v0.2.0 [INFO] [stderr] Checking mio-uds v0.6.7 [INFO] [stderr] Checking serialport v3.3.0 [INFO] [stderr] Checking mio-serial v3.3.0 [INFO] [stderr] Compiling proc-macro-error v0.2.6 [INFO] [stderr] Compiling proc-macro-hack v0.5.11 [INFO] [stderr] Compiling tokio-macros v0.2.1 [INFO] [stderr] Compiling structopt-derive v0.3.5 [INFO] [stderr] Checking tokio v0.2.6 [INFO] [stderr] Compiling futures-macro v0.3.1 [INFO] [stderr] Checking structopt v0.3.5 [INFO] [stderr] Checking futures-util v0.3.1 [INFO] [stderr] Checking tokio-serial v4.3.3 [INFO] [stderr] Checking futures-executor v0.3.1 [INFO] [stderr] Checking futures v0.3.1 [INFO] [stderr] Checking serialcat v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/opt.rs:52:5 [INFO] [stdout] | [INFO] [stdout] 52 | / #[structopt(help = "Serial port device", name = "port")] [INFO] [stdout] 53 | | pub port: 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] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> src/util.rs:33:18 [INFO] [stdout] | [INFO] [stdout] 33 | fn get_chars(&mut self) -> GetCharsIter; [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] 33 | fn get_chars(&mut self) -> GetCharsIter<'_, B>; [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> src/util.rs:40:18 [INFO] [stdout] | [INFO] [stdout] 40 | fn get_chars(&mut self) -> GetCharsIter { [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] 40 | fn get_chars(&mut self) -> GetCharsIter<'_, B> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `serialcat` (lib test) due to 1 previous error; 2 warnings emitted [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/opt.rs:52:5 [INFO] [stdout] | [INFO] [stdout] 52 | / #[structopt(help = "Serial port device", name = "port")] [INFO] [stdout] 53 | | pub port: 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] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> src/util.rs:33:18 [INFO] [stdout] | [INFO] [stdout] 33 | fn get_chars(&mut self) -> GetCharsIter; [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] 33 | fn get_chars(&mut self) -> GetCharsIter<'_, B>; [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> src/util.rs:40:18 [INFO] [stdout] | [INFO] [stdout] 40 | fn get_chars(&mut self) -> GetCharsIter { [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] 40 | fn get_chars(&mut self) -> GetCharsIter<'_, B> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `serialcat` (lib) due to 1 previous error; 2 warnings emitted [INFO] running `Command { std: "docker" "inspect" "532641356f887a15f7720ce61268a039cf05649ca5bfd0f0e9cdb14a861e761c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "532641356f887a15f7720ce61268a039cf05649ca5bfd0f0e9cdb14a861e761c", kill_on_drop: false }` [INFO] [stdout] 532641356f887a15f7720ce61268a039cf05649ca5bfd0f0e9cdb14a861e761c