[INFO] fetching crate crdt-list 0.4.1... [INFO] checking crdt-list-0.4.1 against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never [INFO] extracting crate crdt-list 0.4.1 into /workspace/builds/worker-2-tc1/source [INFO] validating manifest of crates.io crate crdt-list 0.4.1 on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate crdt-list 0.4.1 [INFO] finished tweaking crates.io crate crdt-list 0.4.1 [INFO] tweaked toml for crates.io crate crdt-list 0.4.1 written to /workspace/builds/worker-2-tc1/source/Cargo.toml [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Locking 35 packages [INFO] [stderr] Adding color-backtrace v0.5.1 (latest: v0.6.1) [INFO] [stderr] Adding ctor v0.1.26 (latest: v0.2.7) [INFO] [stderr] Adding hermit-abi v0.1.19 (latest: v0.3.9) [INFO] [stderr] Adding object v0.32.2 (latest: v0.34.0) [INFO] [stderr] Adding syn v1.0.109 (latest: v2.0.58) [INFO] [stderr] Adding wasi v0.11.0+wasi-snapshot-preview1 (latest: v0.13.0+wasi-0.2.0) [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded ctor v0.1.26 [INFO] [stderr] Downloaded derive_arbitrary v1.3.2 [INFO] [stderr] Downloaded arbitrary v1.3.2 [INFO] [stderr] Downloaded color-backtrace v0.5.1 [INFO] [stderr] Downloaded arref v0.1.0 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 10074e1794910afa7b01468007a29e4f3ae03f904212f992429eb73246d8dceb [INFO] running `Command { std: "docker" "start" "-a" "10074e1794910afa7b01468007a29e4f3ae03f904212f992429eb73246d8dceb", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "10074e1794910afa7b01468007a29e4f3ae03f904212f992429eb73246d8dceb", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "10074e1794910afa7b01468007a29e4f3ae03f904212f992429eb73246d8dceb", kill_on_drop: false }` [INFO] [stdout] 10074e1794910afa7b01468007a29e4f3ae03f904212f992429eb73246d8dceb [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 78f2979760a04bcfd6ecd6a31cfe669148de141841dbf2a3b6e20061579575b9 [INFO] running `Command { std: "docker" "start" "-a" "78f2979760a04bcfd6ecd6a31cfe669148de141841dbf2a3b6e20061579575b9", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.79 [INFO] [stderr] Compiling libc v0.2.153 [INFO] [stderr] Compiling syn v1.0.109 [INFO] [stderr] Compiling backtrace v0.3.71 [INFO] [stderr] Checking memchr v2.7.2 [INFO] [stderr] Checking arref v0.1.0 [INFO] [stderr] Checking crdt-list v0.4.1 (/opt/rustwide/workdir) [INFO] [stdout] warning: methods `real_len`, `real_index`, `iter_real`, and `iter_real_mut` are never used [INFO] [stdout] --> src/dumb_common.rs:59:12 [INFO] [stdout] | [INFO] [stdout] 58 | impl Content { [INFO] [stdout] | ------------ methods in this implementation [INFO] [stdout] 59 | pub fn real_len(&self) -> usize { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 63 | pub fn real_index(&self, index: usize) -> usize { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 76 | pub fn iter_real(&self) -> impl Iterator { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 80 | pub fn iter_real_mut(&mut self) -> impl Iterator { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `content`, `version_vector`, `max_clock`, and `id` are never read [INFO] [stdout] --> src/dumb_common.rs:87:9 [INFO] [stdout] | [INFO] [stdout] 86 | pub struct Container { [INFO] [stdout] | --------- fields in this struct [INFO] [stdout] 87 | pub content: Content, [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] 88 | /// exclusive end [INFO] [stdout] 89 | pub version_vector: Vec, [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] 90 | pub max_clock: usize, [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] 91 | pub id: usize, [INFO] [stdout] | ^^ [INFO] [stdout] | [INFO] [stdout] = note: `Container` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking object v0.32.2 [INFO] [stderr] Compiling quote v1.0.35 [INFO] [stderr] Checking atty v0.2.14 [INFO] [stderr] Checking color-backtrace v0.5.1 [INFO] [stderr] Compiling ctor v0.1.26 [INFO] [stdout] warning: methods `real_len`, `real_index`, `iter_real`, and `iter_real_mut` are never used [INFO] [stdout] --> src/dumb_common.rs:59:12 [INFO] [stdout] | [INFO] [stdout] 58 | impl Content { [INFO] [stdout] | ------------ methods in this implementation [INFO] [stdout] 59 | pub fn real_len(&self) -> usize { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 63 | pub fn real_index(&self, index: usize) -> usize { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 76 | pub fn iter_real(&self) -> impl Iterator { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 80 | pub fn iter_real_mut(&mut self) -> impl Iterator { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `content`, `version_vector`, `max_clock`, and `id` are never read [INFO] [stdout] --> src/dumb_common.rs:87:9 [INFO] [stdout] | [INFO] [stdout] 86 | pub struct Container { [INFO] [stdout] | --------- fields in this struct [INFO] [stdout] 87 | pub content: Content, [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] 88 | /// exclusive end [INFO] [stdout] 89 | pub version_vector: Vec, [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] 90 | pub max_clock: usize, [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] 91 | pub id: usize, [INFO] [stdout] | ^^ [INFO] [stdout] | [INFO] [stdout] = note: `Container` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 8.33s [INFO] running `Command { std: "docker" "inspect" "78f2979760a04bcfd6ecd6a31cfe669148de141841dbf2a3b6e20061579575b9", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "78f2979760a04bcfd6ecd6a31cfe669148de141841dbf2a3b6e20061579575b9", kill_on_drop: false }` [INFO] [stdout] 78f2979760a04bcfd6ecd6a31cfe669148de141841dbf2a3b6e20061579575b9