[INFO] fetching crate imprint 0.2.0... [INFO] checking imprint-0.2.0 against try#894d32a5432c6a6461bb2aac7c3d5f2e87dce83f for pr-77015 [INFO] extracting crate imprint 0.2.0 into /workspace/builds/worker-6/source [INFO] validating manifest of crates.io crate imprint 0.2.0 on toolchain 894d32a5432c6a6461bb2aac7c3d5f2e87dce83f [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+894d32a5432c6a6461bb2aac7c3d5f2e87dce83f" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] started tweaking crates.io crate imprint 0.2.0 [INFO] finished tweaking crates.io crate imprint 0.2.0 [INFO] tweaked toml for crates.io crate imprint 0.2.0 written to /workspace/builds/worker-6/source/Cargo.toml [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+894d32a5432c6a6461bb2aac7c3d5f2e87dce83f" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }` [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+894d32a5432c6a6461bb2aac7c3d5f2e87dce83f" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+894d32a5432c6a6461bb2aac7c3d5f2e87dce83f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 53f22b7f53c4c856577af12facdaff8863ad00465b9cea1507b933ebf4cb862b [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" "53f22b7f53c4c856577af12facdaff8863ad00465b9cea1507b933ebf4cb862b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "53f22b7f53c4c856577af12facdaff8863ad00465b9cea1507b933ebf4cb862b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "53f22b7f53c4c856577af12facdaff8863ad00465b9cea1507b933ebf4cb862b", kill_on_drop: false }` [INFO] [stdout] 53f22b7f53c4c856577af12facdaff8863ad00465b9cea1507b933ebf4cb862b [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+894d32a5432c6a6461bb2aac7c3d5f2e87dce83f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 10c7b527f621a861c470afcb7665762e7d3bfa1c2c5c2082491f27fd6e2f1f0d [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" "10c7b527f621a861c470afcb7665762e7d3bfa1c2c5c2082491f27fd6e2f1f0d", kill_on_drop: false }` [INFO] [stderr] Compiling autocfg v1.0.1 [INFO] [stderr] Checking rustc-serialize v0.3.24 [INFO] [stderr] Compiling num-traits v0.2.12 [INFO] [stderr] Compiling num-integer v0.1.43 [INFO] [stderr] Compiling num-iter v0.1.41 [INFO] [stderr] Checking num-bigint v0.1.44 [INFO] [stderr] Checking num-complex v0.1.43 [INFO] [stderr] Checking num-rational v0.1.42 [INFO] [stderr] Checking num v0.1.42 [INFO] [stderr] Checking imprint v0.2.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: the item `mem` is imported redundantly [INFO] [stdout] --> src/lib.rs:427:19 [INFO] [stdout] | [INFO] [stdout] 22 | use std::{fmt, mem}; [INFO] [stdout] | --- the item `mem` is already imported here [INFO] [stdout] ... [INFO] [stdout] 427 | use std::{mem, ptr}; [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `mem` is imported redundantly [INFO] [stdout] --> src/lib.rs:427:19 [INFO] [stdout] | [INFO] [stdout] 22 | use std::{fmt, mem}; [INFO] [stdout] | --- the item `mem` is already imported here [INFO] [stdout] ... [INFO] [stdout] 427 | use std::{mem, ptr}; [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 10.64s [INFO] running `Command { std: "docker" "inspect" "10c7b527f621a861c470afcb7665762e7d3bfa1c2c5c2082491f27fd6e2f1f0d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "10c7b527f621a861c470afcb7665762e7d3bfa1c2c5c2082491f27fd6e2f1f0d", kill_on_drop: false }` [INFO] [stdout] 10c7b527f621a861c470afcb7665762e7d3bfa1c2c5c2082491f27fd6e2f1f0d