[INFO] fetching crate bigmaths 0.0.2... [INFO] testing bigmaths-0.0.2 against 1.49.0 for beta-1.50-1 [INFO] extracting crate bigmaths 0.0.2 into /workspace/builds/worker-14/source [INFO] validating manifest of crates.io crate bigmaths 0.0.2 on toolchain 1.49.0 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "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-14/source/Cargo.toml [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }` [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "+1.49.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 1cad94dba46c1ac52d1c9fd109602fc0bbcf12d3a46bfb584f4c0a8d6e827088 [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" "1cad94dba46c1ac52d1c9fd109602fc0bbcf12d3a46bfb584f4c0a8d6e827088", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "1cad94dba46c1ac52d1c9fd109602fc0bbcf12d3a46bfb584f4c0a8d6e827088", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "1cad94dba46c1ac52d1c9fd109602fc0bbcf12d3a46bfb584f4c0a8d6e827088", kill_on_drop: false }` [INFO] [stdout] 1cad94dba46c1ac52d1c9fd109602fc0bbcf12d3a46bfb584f4c0a8d6e827088 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "+1.49.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] c4c1b293c52f7c42c323cdcdcb4da500065da9f4b846be6d5a143cc18da5ca67 [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" "c4c1b293c52f7c42c323cdcdcb4da500065da9f4b846be6d5a143cc18da5ca67", 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 0.89s [INFO] running `Command { std: "docker" "inspect" "c4c1b293c52f7c42c323cdcdcb4da500065da9f4b846be6d5a143cc18da5ca67", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "c4c1b293c52f7c42c323cdcdcb4da500065da9f4b846be6d5a143cc18da5ca67", kill_on_drop: false }` [INFO] [stdout] c4c1b293c52f7c42c323cdcdcb4da500065da9f4b846be6d5a143cc18da5ca67 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "+1.49.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] ba43accc62dda0d83e1f36dd6d11115ff1c63a6e8a814c5d421602220144cf7b [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" "ba43accc62dda0d83e1f36dd6d11115ff1c63a6e8a814c5d421602220144cf7b", 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] [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 1.99s [INFO] running `Command { std: "docker" "inspect" "ba43accc62dda0d83e1f36dd6d11115ff1c63a6e8a814c5d421602220144cf7b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "ba43accc62dda0d83e1f36dd6d11115ff1c63a6e8a814c5d421602220144cf7b", kill_on_drop: false }` [INFO] [stdout] ba43accc62dda0d83e1f36dd6d11115ff1c63a6e8a814c5d421602220144cf7b [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "+1.49.0" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] a46ba32e567d03c0189c3c527ba814d907c92f49b29001fc9edc7fe1ab31f2ce [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" "a46ba32e567d03c0189c3c527ba814d907c92f49b29001fc9edc7fe1ab31f2ce", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [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 0.04s [INFO] [stdout] [INFO] [stdout] running 18 tests [INFO] [stderr] Running /opt/rustwide/target/debug/deps/bigmaths-18e7e1caad2819ec [INFO] [stdout] test tests::bigint_add_big_pos_and_neg ... ok [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_from_max_isize ... ok [INFO] [stdout] test tests::bigint_from_min_isize ... ok [INFO] [stdout] test tests::bigint_add_little_two_pos ... ok [INFO] [stdout] test tests::bigint_from_negative_isize ... ok [INFO] [stdout] test tests::bigint_from_and_to_isize ... ok [INFO] [stdout] test tests::bigint_from_positive_isize ... ok [INFO] [stdout] test tests::bigint_add_little_two_neg ... 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_little_two_neg ... ok [INFO] [stdout] test tests::bigint_sub_little_two_pos ... ok [INFO] [stdout] test tests::bigint_sub_big_two_pos ... ok [INFO] [stdout] test tests::bigint_sub_big_two_neg ... ok [INFO] [stdout] test tests::bigint_sub_little_pos_and_neg ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 18 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out [INFO] [stdout] [INFO] [stderr] Doc-tests bigmaths [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 [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "a46ba32e567d03c0189c3c527ba814d907c92f49b29001fc9edc7fe1ab31f2ce", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a46ba32e567d03c0189c3c527ba814d907c92f49b29001fc9edc7fe1ab31f2ce", kill_on_drop: false }` [INFO] [stdout] a46ba32e567d03c0189c3c527ba814d907c92f49b29001fc9edc7fe1ab31f2ce