[INFO] cloning repository https://github.com/Lucretiel/rewrite [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Lucretiel/rewrite" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLucretiel%2Frewrite", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLucretiel%2Frewrite'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 539c51b00ce7fb815e56767e9bc4c8678e8de01b [INFO] checking Lucretiel/rewrite 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%2FLucretiel%2Frewrite" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'... [INFO] [stderr] done. [INFO] started tweaking git repo https://github.com/Lucretiel/rewrite [INFO] finished tweaking git repo https://github.com/Lucretiel/rewrite [INFO] tweaked toml for git repo https://github.com/Lucretiel/rewrite written to /workspace/builds/worker-3-tc2/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/Lucretiel/rewrite 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/Lucretiel/rewrite 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] a4a497b909bfc591b9546a4a7f33551c512ce7856b33ed8555a532a7b02c5a47 [INFO] running `Command { std: "docker" "start" "-a" "a4a497b909bfc591b9546a4a7f33551c512ce7856b33ed8555a532a7b02c5a47", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "a4a497b909bfc591b9546a4a7f33551c512ce7856b33ed8555a532a7b02c5a47", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a4a497b909bfc591b9546a4a7f33551c512ce7856b33ed8555a532a7b02c5a47", kill_on_drop: false }` [INFO] [stdout] a4a497b909bfc591b9546a4a7f33551c512ce7856b33ed8555a532a7b02c5a47 [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] 521df9c2622883bdb36a8098bc4ab8d01f01574079fbd1b6d316bdca453c6071 [INFO] running `Command { std: "docker" "start" "-a" "521df9c2622883bdb36a8098bc4ab8d01f01574079fbd1b6d316bdca453c6071", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.48 [INFO] [stderr] Compiling unicode-segmentation v1.2.1 [INFO] [stderr] Checking unicode-width v0.1.5 [INFO] [stderr] Checking strsim v0.7.0 [INFO] [stderr] Checking remove_dir_all v0.5.1 [INFO] [stderr] Checking joinery v2.0.0 [INFO] [stderr] Compiling rand_pcg v0.1.1 [INFO] [stderr] Compiling syn v0.15.26 [INFO] [stderr] Checking textwrap v0.10.0 [INFO] [stderr] Compiling heck v0.3.1 [INFO] [stderr] Checking rand_os v0.1.2 [INFO] [stderr] Checking atty v0.2.11 [INFO] [stderr] Checking clap v2.32.0 [INFO] [stderr] Checking rand v0.6.5 [INFO] [stderr] Checking tempfile v3.0.6 [INFO] [stderr] Compiling structopt-derive v0.2.14 [INFO] [stderr] Checking structopt v0.2.14 [INFO] [stderr] Checking rewrite v1.0.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: field `sibling_dir` is never read [INFO] [stdout] --> src/main.rs:44:5 [INFO] [stdout] | [INFO] [stdout] 33 | struct Opt { [INFO] [stdout] | --- field in this struct [INFO] [stdout] ... [INFO] [stdout] 44 | sibling_dir: bool, [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Opt` 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] error: this type will no longer be must used: Result [INFO] [stdout] --> src/main.rs:31:24 [INFO] [stdout] | [INFO] [stdout] 31 | #[derive(Debug, Clone, StructOpt)] [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: requested on the command line with `-D unmustuse-in-always-ok` [INFO] [stdout] = note: this error originates in the derive macro `StructOpt` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/main.rs:31:24 [INFO] [stdout] | [INFO] [stdout] 31 | #[derive(Debug, Clone, StructOpt)] [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this error originates in the derive macro `StructOpt` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `rewrite` (bin "rewrite") due to 2 previous errors; 1 warning emitted [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stdout] warning: field `sibling_dir` is never read [INFO] [stdout] --> src/main.rs:44:5 [INFO] [stdout] | [INFO] [stdout] 33 | struct Opt { [INFO] [stdout] | --- field in this struct [INFO] [stdout] ... [INFO] [stdout] 44 | sibling_dir: bool, [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Opt` 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] error: this type will no longer be must used: Result [INFO] [stdout] --> src/main.rs:31:24 [INFO] [stdout] | [INFO] [stdout] 31 | #[derive(Debug, Clone, StructOpt)] [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: requested on the command line with `-D unmustuse-in-always-ok` [INFO] [stdout] = note: this error originates in the derive macro `StructOpt` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/main.rs:31:24 [INFO] [stdout] | [INFO] [stdout] 31 | #[derive(Debug, Clone, StructOpt)] [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this error originates in the derive macro `StructOpt` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `rewrite` (bin "rewrite" test) due to 2 previous errors; 1 warning emitted [INFO] running `Command { std: "docker" "inspect" "521df9c2622883bdb36a8098bc4ab8d01f01574079fbd1b6d316bdca453c6071", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "521df9c2622883bdb36a8098bc4ab8d01f01574079fbd1b6d316bdca453c6071", kill_on_drop: false }` [INFO] [stdout] 521df9c2622883bdb36a8098bc4ab8d01f01574079fbd1b6d316bdca453c6071