[INFO] fetching crate im 15.0.0... [INFO] checking im-15.0.0 against try#f6e2f78768c57172b99c3e85892f867894dc7e30 for pr-75502 [INFO] extracting crate im 15.0.0 into /workspace/builds/worker-9/source [INFO] validating manifest of crates.io crate im 15.0.0 on toolchain f6e2f78768c57172b99c3e85892f867894dc7e30 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] started tweaking crates.io crate im 15.0.0 [INFO] finished tweaking crates.io crate im 15.0.0 [INFO] tweaked toml for crates.io crate im 15.0.0 written to /workspace/builds/worker-9/source/Cargo.toml [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }` [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "rustops/crates-build-env@sha256:e18d859f9e32a1da89bc7b2d7d51e13b57342044d1295d9fc0dd0068c58eb3d1" "/opt/rustwide/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] 4d8e18ee82027103d76f2c10cfd31802e497b37380af893565e7de007ef2c4b3 [INFO] running `Command { std: "docker" "start" "-a" "4d8e18ee82027103d76f2c10cfd31802e497b37380af893565e7de007ef2c4b3", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "4d8e18ee82027103d76f2c10cfd31802e497b37380af893565e7de007ef2c4b3", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "4d8e18ee82027103d76f2c10cfd31802e497b37380af893565e7de007ef2c4b3", kill_on_drop: false }` [INFO] [stdout] 4d8e18ee82027103d76f2c10cfd31802e497b37380af893565e7de007ef2c4b3 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:e18d859f9e32a1da89bc7b2d7d51e13b57342044d1295d9fc0dd0068c58eb3d1" "/opt/rustwide/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] d925602781010b438e5188d9145aa8e07d83e4d295bb6d5435d908d4726343db [INFO] running `Command { std: "docker" "start" "-a" "d925602781010b438e5188d9145aa8e07d83e4d295bb6d5435d908d4726343db", kill_on_drop: false }` [INFO] [stderr] Compiling maybe-uninit v2.0.0 [INFO] [stderr] Checking scopeguard v1.1.0 [INFO] [stderr] Compiling version_check v0.9.2 [INFO] [stderr] Compiling byteorder v1.3.4 [INFO] [stderr] Compiling syn v0.15.44 [INFO] [stderr] Checking bit-vec v0.6.2 [INFO] [stderr] Checking difference v2.0.0 [INFO] [stderr] Checking itoa v0.4.6 [INFO] [stderr] Compiling num-traits v0.2.12 [INFO] [stderr] Compiling rand v0.6.5 [INFO] [stderr] Checking getrandom v0.1.14 [INFO] [stderr] Checking crossbeam-utils v0.7.2 [INFO] [stderr] Checking wait-timeout v0.2.0 [INFO] [stderr] Checking bitmaps v2.1.0 [INFO] [stderr] Checking pretty_assertions v0.6.1 [INFO] [stderr] Checking serde_json v1.0.57 [INFO] [stderr] Checking rand_core v0.5.1 [INFO] [stderr] Checking bit-set v0.5.2 [INFO] [stderr] Checking crossbeam-channel v0.4.3 [INFO] [stderr] Checking rand_pcg v0.2.1 [INFO] [stderr] Checking rand_chacha v0.2.2 [INFO] [stderr] Checking rand_xoshiro v0.4.0 [INFO] [stderr] Checking crossbeam-epoch v0.8.2 [INFO] [stderr] Compiling im v15.0.0 (/opt/rustwide/workdir) [INFO] [stderr] Checking rand v0.7.3 [INFO] [stderr] Checking crossbeam-deque v0.7.3 [INFO] [stderr] Checking rayon-core v1.8.0 [INFO] [stderr] Checking rayon v1.4.0 [INFO] [stderr] Checking tempfile v3.1.0 [INFO] [stderr] Checking rusty-fork v0.2.2 [INFO] [stderr] Checking proptest v0.9.6 [INFO] [stderr] Checking sized-chunks v0.6.2 [INFO] [stdout] warning: the feature `specialization` is incomplete and may not be safe to use and/or cause compiler crashes [INFO] [stdout] --> src/lib.rs:341:41 [INFO] [stdout] | [INFO] [stdout] 341 | #![cfg_attr(has_specialisation, feature(specialization))] [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(incomplete_features)]` on by default [INFO] [stdout] = note: see issue #31844 for more information [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used [INFO] [stdout] --> src/vector/mod.rs:986:13 [INFO] [stdout] | [INFO] [stdout] 986 | replace(self, other); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] = note: if you don't need the old value, you can just assign the new value directly [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling proptest-derive v0.1.2 [INFO] [stdout] warning: the feature `specialization` is incomplete and may not be safe to use and/or cause compiler crashes [INFO] [stdout] --> src/lib.rs:341:41 [INFO] [stdout] | [INFO] [stdout] 341 | #![cfg_attr(has_specialisation, feature(specialization))] [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(incomplete_features)]` on by default [INFO] [stdout] = note: see issue #31844 for more information [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used [INFO] [stdout] --> src/vector/mod.rs:986:13 [INFO] [stdout] | [INFO] [stdout] 986 | replace(self, other); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] = note: if you don't need the old value, you can just assign the new value directly [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 54.41s [INFO] running `Command { std: "docker" "inspect" "d925602781010b438e5188d9145aa8e07d83e4d295bb6d5435d908d4726343db", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "d925602781010b438e5188d9145aa8e07d83e4d295bb6d5435d908d4726343db", kill_on_drop: false }` [INFO] [stdout] d925602781010b438e5188d9145aa8e07d83e4d295bb6d5435d908d4726343db