[INFO] fetching crate wlambda 0.6.3... [INFO] checking wlambda-0.6.3 against try#81275a1445c7502a974118e0c69b795ab60be991 for pr-80243 [INFO] extracting crate wlambda 0.6.3 into /workspace/builds/worker-7/source [INFO] validating manifest of crates.io crate wlambda 0.6.3 on toolchain 81275a1445c7502a974118e0c69b795ab60be991 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+81275a1445c7502a974118e0c69b795ab60be991" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] started tweaking crates.io crate wlambda 0.6.3 [INFO] finished tweaking crates.io crate wlambda 0.6.3 [INFO] tweaked toml for crates.io crate wlambda 0.6.3 written to /workspace/builds/worker-7/source/Cargo.toml [INFO] crate crates.io crate wlambda 0.6.3 already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+81275a1445c7502a974118e0c69b795ab60be991" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded dirs-sys-next v0.1.0 [INFO] [stderr] Downloaded dirs-next v1.0.1 [INFO] [stderr] Downloaded rmp-serde v0.14.3 [INFO] [stderr] Downloaded rustyline v6.2.0 [INFO] [stderr] Downloaded mint v0.5.5 [INFO] [stderr] Downloaded rmp v0.8.9 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+81275a1445c7502a974118e0c69b795ab60be991" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] f647971274ed707f87c24f56098e8881add5e1db093fea2fb77a31736716f0ed [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "f647971274ed707f87c24f56098e8881add5e1db093fea2fb77a31736716f0ed", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "f647971274ed707f87c24f56098e8881add5e1db093fea2fb77a31736716f0ed", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "f647971274ed707f87c24f56098e8881add5e1db093fea2fb77a31736716f0ed", kill_on_drop: false }` [INFO] [stdout] f647971274ed707f87c24f56098e8881add5e1db093fea2fb77a31736716f0ed [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+81275a1445c7502a974118e0c69b795ab60be991" "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] 4567891f43c2846d0fca208380efd18adb965322939bad33cba0ddbfc7fdff56 [INFO] running `Command { std: "docker" "start" "-a" "4567891f43c2846d0fca208380efd18adb965322939bad33cba0ddbfc7fdff56", kill_on_drop: false }` [INFO] [stderr] Compiling autocfg v1.0.0 [INFO] [stderr] Compiling libc v0.2.73 [INFO] [stderr] Compiling syn v1.0.34 [INFO] [stderr] Compiling serde_derive v1.0.114 [INFO] [stderr] Compiling serde v1.0.114 [INFO] [stderr] Compiling byteorder v1.3.4 [INFO] [stderr] Compiling nix v0.17.0 [INFO] [stderr] Compiling serde_json v1.0.56 [INFO] [stderr] Checking unicode-width v0.1.8 [INFO] [stderr] Checking utf8parse v0.2.0 [INFO] [stderr] Checking regex-syntax v0.6.18 [INFO] [stderr] Checking fnv v1.0.7 [INFO] [stderr] Checking thread_local v1.0.1 [INFO] [stderr] Compiling proc-macro2 v1.0.19 [INFO] [stderr] Checking log v0.4.11 [INFO] [stderr] Checking aho-corasick v0.7.13 [INFO] [stderr] Compiling num-traits v0.2.12 [INFO] [stderr] Compiling num-integer v0.1.43 [INFO] [stderr] Compiling quote v1.0.7 [INFO] [stderr] Checking rmp v0.8.9 [INFO] [stderr] Checking dirs-sys-next v0.1.0 [INFO] [stderr] Checking time v0.1.43 [INFO] [stderr] Checking dirs-next v1.0.1 [INFO] [stderr] Checking chrono v0.4.13 [INFO] [stderr] Checking regex v1.3.9 [INFO] [stderr] Checking rustyline v6.2.0 [INFO] [stderr] Checking rmp-serde v0.14.3 [INFO] [stderr] Checking wlambda v0.6.3 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used [INFO] [stdout] --> src/vval.rs:477:9 [INFO] [stdout] | [INFO] [stdout] 477 | std::mem::replace(&mut self.current_self, old_self); [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: unused return value of `std::mem::replace` that must be used [INFO] [stdout] --> src/vval.rs:885:17 [INFO] [stdout] | [INFO] [stdout] 885 | std::mem::replace(&mut self.loop_info, li); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [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: unused return value of `std::mem::replace` that must be used [INFO] [stdout] --> src/vval.rs:888:17 [INFO] [stdout] | [INFO] [stdout] 888 | std::mem::replace(&mut self.accum_fun, fun); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [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: unused return value of `std::mem::replace` that must be used [INFO] [stdout] --> src/vval.rs:889:17 [INFO] [stdout] | [INFO] [stdout] 889 | std::mem::replace(&mut self.accum_val, val); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [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: unused return value of `std::mem::replace` that must be used [INFO] [stdout] --> src/vval.rs:892:17 [INFO] [stdout] | [INFO] [stdout] 892 | std::mem::replace(&mut self.current_self, slf); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [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: unused return value of `std::mem::replace` that must be used [INFO] [stdout] --> src/vval.rs:895:17 [INFO] [stdout] | [INFO] [stdout] 895 | std::mem::replace(&mut self.iter, i); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [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: 6 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used [INFO] [stdout] --> src/vval.rs:477:9 [INFO] [stdout] | [INFO] [stdout] 477 | std::mem::replace(&mut self.current_self, old_self); [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: unused return value of `std::mem::replace` that must be used [INFO] [stdout] --> src/vval.rs:885:17 [INFO] [stdout] | [INFO] [stdout] 885 | std::mem::replace(&mut self.loop_info, li); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [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: unused return value of `std::mem::replace` that must be used [INFO] [stdout] --> src/vval.rs:888:17 [INFO] [stdout] | [INFO] [stdout] 888 | std::mem::replace(&mut self.accum_fun, fun); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [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: unused return value of `std::mem::replace` that must be used [INFO] [stdout] --> src/vval.rs:889:17 [INFO] [stdout] | [INFO] [stdout] 889 | std::mem::replace(&mut self.accum_val, val); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [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: unused return value of `std::mem::replace` that must be used [INFO] [stdout] --> src/vval.rs:892:17 [INFO] [stdout] | [INFO] [stdout] 892 | std::mem::replace(&mut self.current_self, slf); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [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: unused return value of `std::mem::replace` that must be used [INFO] [stdout] --> src/vval.rs:895:17 [INFO] [stdout] | [INFO] [stdout] 895 | std::mem::replace(&mut self.iter, i); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [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: 6 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 1m 07s [INFO] running `Command { std: "docker" "inspect" "4567891f43c2846d0fca208380efd18adb965322939bad33cba0ddbfc7fdff56", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "4567891f43c2846d0fca208380efd18adb965322939bad33cba0ddbfc7fdff56", kill_on_drop: false }` [INFO] [stdout] 4567891f43c2846d0fca208380efd18adb965322939bad33cba0ddbfc7fdff56