[INFO] fetching crate bigmaths 0.0.2...
[INFO] testing bigmaths-0.0.2 against 1.60.0 for beta-1.61-1
[INFO] extracting crate bigmaths 0.0.2 into /workspace/builds/worker-9/source
[INFO] validating manifest of crates.io crate bigmaths 0.0.2 on toolchain 1.60.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", 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-9/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "fetch" "--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 116fe12d4d9a322b56d9c54365a0c3f2cc04b89b1299c9561189ca3a60b368d1
[INFO] running `Command { std: "docker" "start" "-a" "116fe12d4d9a322b56d9c54365a0c3f2cc04b89b1299c9561189ca3a60b368d1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "116fe12d4d9a322b56d9c54365a0c3f2cc04b89b1299c9561189ca3a60b368d1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "116fe12d4d9a322b56d9c54365a0c3f2cc04b89b1299c9561189ca3a60b368d1", kill_on_drop: false }`
[INFO] [stdout] 116fe12d4d9a322b56d9c54365a0c3f2cc04b89b1299c9561189ca3a60b368d1
[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=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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4b3bb6c20537892758716a42f4a9aa2783dafb2e19074944610b90d59ee02b07
[INFO] running `Command { std: "docker" "start" "-a" "4b3bb6c20537892758716a42f4a9aa2783dafb2e19074944610b90d59ee02b07", 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 0.92s
[INFO] running `Command { std: "docker" "inspect" "4b3bb6c20537892758716a42f4a9aa2783dafb2e19074944610b90d59ee02b07", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4b3bb6c20537892758716a42f4a9aa2783dafb2e19074944610b90d59ee02b07", kill_on_drop: false }`
[INFO] [stdout] 4b3bb6c20537892758716a42f4a9aa2783dafb2e19074944610b90d59ee02b07
[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=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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f9ba669b598e2d40406aec923498f6bf4480c91c536383716dbef93693c31327
[INFO] running `Command { std: "docker" "start" "-a" "f9ba669b598e2d40406aec923498f6bf4480c91c536383716dbef93693c31327", 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 0.48s
[INFO] running `Command { std: "docker" "inspect" "f9ba669b598e2d40406aec923498f6bf4480c91c536383716dbef93693c31327", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f9ba669b598e2d40406aec923498f6bf4480c91c536383716dbef93693c31327", kill_on_drop: false }`
[INFO] [stdout] f9ba669b598e2d40406aec923498f6bf4480c91c536383716dbef93693c31327
[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=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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 1cdd476a2daefd93b3644c744308d9ab90745cc6b3b818c4a0070c7696c320d0
[INFO] running `Command { std: "docker" "start" "-a" "1cdd476a2daefd93b3644c744308d9ab90745cc6b3b818c4a0070c7696c320d0", 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: `bigmaths` (lib) generated 1 warning
[INFO] [stderr] warning: `bigmaths` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/bigmaths-256b0d853477f9ba)
[INFO] [stdout] 
[INFO] [stdout] running 18 tests
[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_add_little_two_pos ... ok
[INFO] [stdout] test tests::bigint_add_little_two_neg ... ok
[INFO] [stdout] test tests::bigint_from_and_to_isize ... ok
[INFO] [stdout] test tests::bigint_from_min_isize ... ok
[INFO] [stdout] test tests::bigint_from_negative_isize ... ok
[INFO] [stdout] test tests::bigint_from_max_isize ... ok
[INFO] [stdout] test tests::bigint_from_positive_isize ... ok
[INFO] [stdout] test tests::bigint_sub_big_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_big_two_pos ... 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_little_pos_and_neg ... ok
[INFO] [stderr]    Doc-tests bigmaths
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 18 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[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" "1cdd476a2daefd93b3644c744308d9ab90745cc6b3b818c4a0070c7696c320d0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1cdd476a2daefd93b3644c744308d9ab90745cc6b3b818c4a0070c7696c320d0", kill_on_drop: false }`
[INFO] [stdout] 1cdd476a2daefd93b3644c744308d9ab90745cc6b3b818c4a0070c7696c320d0