[INFO] cloning repository https://github.com/fol21/rust-broadcast-buffer [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/fol21/rust-broadcast-buffer" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffol21%2Frust-broadcast-buffer", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffol21%2Frust-broadcast-buffer'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 1491c0a44a6a0fa47d8d4005dcdef3f6deb80337 [INFO] checking fol21/rust-broadcast-buffer against try#8a0378607d6b34c242e3bfa75554871be641864b for pr-143028 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffol21%2Frust-broadcast-buffer" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'... [INFO] [stderr] done. [INFO] started tweaking git repo https://github.com/fol21/rust-broadcast-buffer [INFO] finished tweaking git repo https://github.com/fol21/rust-broadcast-buffer [INFO] tweaked toml for git repo https://github.com/fol21/rust-broadcast-buffer written to /workspace/builds/worker-1-tc2/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/fol21/rust-broadcast-buffer on toolchain 8a0378607d6b34c242e3bfa75554871be641864b [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8a0378607d6b34c242e3bfa75554871be641864b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate git repo https://github.com/fol21/rust-broadcast-buffer 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" "+8a0378607d6b34c242e3bfa75554871be641864b" "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 [ERROR] error running command: no output for 300 seconds [INFO] checking fol21/rust-broadcast-buffer against try#8a0378607d6b34c242e3bfa75554871be641864b for pr-143028 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffol21%2Frust-broadcast-buffer" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'... [INFO] [stderr] done. [INFO] started tweaking git repo https://github.com/fol21/rust-broadcast-buffer [INFO] finished tweaking git repo https://github.com/fol21/rust-broadcast-buffer [INFO] tweaked toml for git repo https://github.com/fol21/rust-broadcast-buffer written to /workspace/builds/worker-1-tc2/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/fol21/rust-broadcast-buffer on toolchain 8a0378607d6b34c242e3bfa75554871be641864b [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8a0378607d6b34c242e3bfa75554871be641864b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate git repo https://github.com/fol21/rust-broadcast-buffer 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" "+8a0378607d6b34c242e3bfa75554871be641864b" "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] [stderr] Downloading crates ... [INFO] [stderr] Downloaded ppv-lite86 v0.2.15 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8a0378607d6b34c242e3bfa75554871be641864b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] d74a603c1b2228163f32dfec6c6bbea7a21f7db411407e28e5b71b842e2f254e [INFO] running `Command { std: "docker" "start" "-a" "d74a603c1b2228163f32dfec6c6bbea7a21f7db411407e28e5b71b842e2f254e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "d74a603c1b2228163f32dfec6c6bbea7a21f7db411407e28e5b71b842e2f254e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "d74a603c1b2228163f32dfec6c6bbea7a21f7db411407e28e5b71b842e2f254e", kill_on_drop: false }` [INFO] [stdout] d74a603c1b2228163f32dfec6c6bbea7a21f7db411407e28e5b71b842e2f254e [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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" "-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8a0378607d6b34c242e3bfa75554871be641864b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 7452477181a545bec1b298fa78416eb2d00d18ccd9492ff0014c90c3a66634cc [INFO] running `Command { std: "docker" "start" "-a" "7452477181a545bec1b298fa78416eb2d00d18ccd9492ff0014c90c3a66634cc", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.109 [INFO] [stderr] Checking ppv-lite86 v0.2.15 [INFO] [stderr] Checking getrandom v0.2.3 [INFO] [stderr] Checking rand_core v0.6.3 [INFO] [stderr] Checking rand_chacha v0.3.1 [INFO] [stderr] Checking rand v0.8.4 [INFO] [stderr] Checking rust-broadcast-buffer v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: field `numprod` is never read [INFO] [stdout] --> src/buffer.rs:56:5 [INFO] [stdout] | [INFO] [stdout] 53 | pub struct SBuffer [INFO] [stdout] | ------- field in this struct [INFO] [stdout] ... [INFO] [stdout] 56 | numprod: usize, [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: methods `data`, `len`, `numpos`, `numprod`, `numcons`, and `free_slots` are never used [INFO] [stdout] --> src/buffer.rs:110:12 [INFO] [stdout] | [INFO] [stdout] 108 | impl SBuffer [INFO] [stdout] | -------------------------------------------- methods in this implementation [INFO] [stdout] 109 | { [INFO] [stdout] 110 | pub fn data(&self, index: usize) -> Option [INFO] [stdout] | ^^^^ [INFO] [stdout] ... [INFO] [stdout] 115 | pub fn len(&self) -> usize [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 133 | pub fn numpos(&self) -> usize {self.numpos} [INFO] [stdout] | ^^^^^^ [INFO] [stdout] 134 | pub fn numprod(&self) -> usize {self.numprod} [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] 135 | pub fn numcons(&self) -> usize {self.numcons} [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] 136 | pub fn free_slots(&self) -> usize {self.free_slots} [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/buffer.rs:73:9 [INFO] [stdout] | [INFO] [stdout] 73 | write!(f, "Buffer[ "); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] = note: this warning originates in the macro `write` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/buffer.rs:76:13 [INFO] [stdout] | [INFO] [stdout] 76 | write!(f, "{}({}); ", d.data.unwrap_or_default(), d.to_read); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] = note: this warning originates in the macro `write` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: methods `len` and `free_slots` are never used [INFO] [stdout] --> src/buffer.rs:115:12 [INFO] [stdout] | [INFO] [stdout] 108 | impl SBuffer [INFO] [stdout] | -------------------------------------------- methods in this implementation [INFO] [stdout] ... [INFO] [stdout] 115 | pub fn len(&self) -> usize [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 136 | pub fn free_slots(&self) -> usize {self.free_slots} [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/buffer.rs:73:9 [INFO] [stdout] | [INFO] [stdout] 73 | write!(f, "Buffer[ "); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] = note: this warning originates in the macro `write` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/buffer.rs:76:13 [INFO] [stdout] | [INFO] [stdout] 76 | write!(f, "{}({}); ", d.data.unwrap_or_default(), d.to_read); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] = note: this warning originates in the macro `write` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.99s [INFO] running `Command { std: "docker" "inspect" "7452477181a545bec1b298fa78416eb2d00d18ccd9492ff0014c90c3a66634cc", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "7452477181a545bec1b298fa78416eb2d00d18ccd9492ff0014c90c3a66634cc", kill_on_drop: false }` [INFO] [stdout] 7452477181a545bec1b298fa78416eb2d00d18ccd9492ff0014c90c3a66634cc