[INFO] fetching crate bigmaths 0.0.2... [INFO] testing bigmaths-0.0.2 against beta-2021-01-01 for beta-1.50-1 [INFO] extracting crate bigmaths 0.0.2 into /workspace/builds/worker-1/source [INFO] validating manifest of crates.io crate bigmaths 0.0.2 on toolchain beta-2021-01-01 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] started tweaking crates.io crate bigmaths 0.0.2 [INFO] finished tweaking crates.io crate bigmaths 0.0.2 [INFO] tweaked toml for crates.io crate bigmaths 0.0.2 written to /workspace/builds/worker-1/source/Cargo.toml [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }` [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] eb651fef546efa751f37151eb78e1cf778c2e055d2ae60205ef07be6b1bcbff3 [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" "eb651fef546efa751f37151eb78e1cf778c2e055d2ae60205ef07be6b1bcbff3", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "eb651fef546efa751f37151eb78e1cf778c2e055d2ae60205ef07be6b1bcbff3", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "eb651fef546efa751f37151eb78e1cf778c2e055d2ae60205ef07be6b1bcbff3", kill_on_drop: false }` [INFO] [stdout] eb651fef546efa751f37151eb78e1cf778c2e055d2ae60205ef07be6b1bcbff3 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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=warn" "-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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] b19031cb3d899599e4ca645082f90826582b47d4ca5ac870132de68fc0bfc92a [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" "b19031cb3d899599e4ca645082f90826582b47d4ca5ac870132de68fc0bfc92a", kill_on_drop: false }` [INFO] [stderr] Compiling bigmaths v0.0.2 (/opt/rustwide/workdir) [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/lib.rs:189:26 [INFO] [stdout] | [INFO] [stdout] 189 | ... let (mut modulus, final_carry) = limb_pairs_iter.fold((Vec::with_capacity(self.len() + 1), false), |(mut limbs, carry), (&self_limb... [INFO] [stdout] | ----^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 1.32s [INFO] running `Command { std: "docker" "inspect" "b19031cb3d899599e4ca645082f90826582b47d4ca5ac870132de68fc0bfc92a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "b19031cb3d899599e4ca645082f90826582b47d4ca5ac870132de68fc0bfc92a", kill_on_drop: false }` [INFO] [stdout] b19031cb3d899599e4ca645082f90826582b47d4ca5ac870132de68fc0bfc92a [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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=warn" "-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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 7f1b6d3381c84c8b91df75dea1f2c534aee387bcabab406cdda723c765e8bfb3 [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" "7f1b6d3381c84c8b91df75dea1f2c534aee387bcabab406cdda723c765e8bfb3", kill_on_drop: false }` [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/lib.rs:189:26 [INFO] [stdout] | [INFO] [stdout] 189 | ... let (mut modulus, final_carry) = limb_pairs_iter.fold((Vec::with_capacity(self.len() + 1), false), |(mut limbs, carry), (&self_limb... [INFO] [stdout] | ----^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling bigmaths v0.0.2 (/opt/rustwide/workdir) [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/lib.rs:189:26 [INFO] [stdout] | [INFO] [stdout] 189 | ... let (mut modulus, final_carry) = limb_pairs_iter.fold((Vec::with_capacity(self.len() + 1), false), |(mut limbs, carry), (&self_limb... [INFO] [stdout] | ----^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 1.70s [INFO] running `Command { std: "docker" "inspect" "7f1b6d3381c84c8b91df75dea1f2c534aee387bcabab406cdda723c765e8bfb3", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "7f1b6d3381c84c8b91df75dea1f2c534aee387bcabab406cdda723c765e8bfb3", kill_on_drop: false }` [INFO] [stdout] 7f1b6d3381c84c8b91df75dea1f2c534aee387bcabab406cdda723c765e8bfb3 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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=warn" "-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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "test" "--frozen", 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] fdd82464d6fe9e24c05a7883a484fa53735b7ce81bad7d2445b3b3e58ff4d302 [INFO] running `Command { std: "docker" "start" "-a" "fdd82464d6fe9e24c05a7883a484fa53735b7ce81bad7d2445b3b3e58ff4d302", kill_on_drop: false }` [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/lib.rs:189:26 [INFO] [stderr] | [INFO] [stderr] 189 | ... let (mut modulus, final_carry) = limb_pairs_iter.fold((Vec::with_capacity(self.len() + 1), false), |(mut limbs, carry), (&self_limb... [INFO] [stderr] | ----^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_mut)]` on by default [INFO] [stderr] [INFO] [stderr] warning: 1 warning emitted [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/lib.rs:189:26 [INFO] [stderr] | [INFO] [stderr] 189 | ... let (mut modulus, final_carry) = limb_pairs_iter.fold((Vec::with_capacity(self.len() + 1), false), |(mut limbs, carry), (&self_limb... [INFO] [stderr] | ----^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_mut)]` on by default [INFO] [stderr] [INFO] [stderr] warning: 1 warning emitted [INFO] [stderr] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.03s [INFO] [stderr] Running /opt/rustwide/target/debug/deps/bigmaths-c55c1a2d5abb25a9 [INFO] [stdout] [INFO] [stdout] running 18 tests [INFO] [stdout] test tests::bigint_add_big_two_neg ... ok [INFO] [stdout] test tests::bigint_add_big_two_pos ... ok [INFO] [stdout] test tests::bigint_add_little_pos_and_neg ... ok [INFO] [stdout] test tests::bigint_add_big_pos_and_neg ... ok [INFO] [stdout] test tests::bigint_add_little_two_pos ... ok [INFO] [stdout] test tests::bigint_add_little_two_neg ... ok [INFO] [stdout] test tests::bigint_from_max_isize ... ok [INFO] [stdout] test tests::bigint_from_min_isize ... ok [INFO] [stdout] test tests::bigint_from_negative_isize ... ok [INFO] [stderr] Doc-tests bigmaths [INFO] [stdout] test tests::bigint_from_positive_isize ... ok [INFO] [stdout] test tests::bigint_from_zero_isize ... ok [INFO] [stdout] test tests::bigint_sub_big_pos_and_neg ... ok [INFO] [stdout] test tests::bigint_sub_big_two_neg ... ok [INFO] [stdout] test tests::bigint_sub_big_two_pos ... ok [INFO] [stdout] test tests::bigint_sub_little_pos_and_neg ... ok [INFO] [stdout] test tests::bigint_sub_little_two_neg ... ok [INFO] [stdout] test tests::bigint_from_and_to_isize ... ok [INFO] [stdout] test tests::bigint_sub_little_two_pos ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 18 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.03s [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] running 0 tests [INFO] [stdout] [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "fdd82464d6fe9e24c05a7883a484fa53735b7ce81bad7d2445b3b3e58ff4d302", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "fdd82464d6fe9e24c05a7883a484fa53735b7ce81bad7d2445b3b3e58ff4d302", kill_on_drop: false }` [INFO] [stdout] fdd82464d6fe9e24c05a7883a484fa53735b7ce81bad7d2445b3b3e58ff4d302