[INFO] fetching crate bigmaths 0.0.2...
[INFO] testing bigmaths-0.0.2 against beta-2022-04-10 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 beta-2022-04-10
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "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" "+beta-2022-04-10" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a8f2214de800fe6329fbb7e02ac73399a88822e58a85ecbf9746ad5cacfc03d1
[INFO] running `Command { std: "docker" "start" "-a" "a8f2214de800fe6329fbb7e02ac73399a88822e58a85ecbf9746ad5cacfc03d1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a8f2214de800fe6329fbb7e02ac73399a88822e58a85ecbf9746ad5cacfc03d1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a8f2214de800fe6329fbb7e02ac73399a88822e58a85ecbf9746ad5cacfc03d1", kill_on_drop: false }`
[INFO] [stdout] a8f2214de800fe6329fbb7e02ac73399a88822e58a85ecbf9746ad5cacfc03d1
[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" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ac64049d731ea42f2323e3160d0edfbbe7f5a6e5d6c9fd87c69479ef40647ac4
[INFO] running `Command { std: "docker" "start" "-a" "ac64049d731ea42f2323e3160d0edfbbe7f5a6e5d6c9fd87c69479ef40647ac4", 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 0.51s
[INFO] running `Command { std: "docker" "inspect" "ac64049d731ea42f2323e3160d0edfbbe7f5a6e5d6c9fd87c69479ef40647ac4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ac64049d731ea42f2323e3160d0edfbbe7f5a6e5d6c9fd87c69479ef40647ac4", kill_on_drop: false }`
[INFO] [stdout] ac64049d731ea42f2323e3160d0edfbbe7f5a6e5d6c9fd87c69479ef40647ac4
[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" "+beta-2022-04-10" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bbcb1c7c2a88c89ac1b3a3e8842bd0192b9d2c57ef52386acf940fcd9b1484dc
[INFO] running `Command { std: "docker" "start" "-a" "bbcb1c7c2a88c89ac1b3a3e8842bd0192b9d2c57ef52386acf940fcd9b1484dc", 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 0.65s
[INFO] [stderr]   Executable unittests src/lib.rs (/opt/rustwide/target/debug/deps/bigmaths-4d6662e983ca9431)
[INFO] running `Command { std: "docker" "inspect" "bbcb1c7c2a88c89ac1b3a3e8842bd0192b9d2c57ef52386acf940fcd9b1484dc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bbcb1c7c2a88c89ac1b3a3e8842bd0192b9d2c57ef52386acf940fcd9b1484dc", kill_on_drop: false }`
[INFO] [stdout] bbcb1c7c2a88c89ac1b3a3e8842bd0192b9d2c57ef52386acf940fcd9b1484dc
[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" "+beta-2022-04-10" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 7e723237f99a26f25f7ec9c28b580cd24374d28f09d97a5d4f20b5e8e8feb181
[INFO] running `Command { std: "docker" "start" "-a" "7e723237f99a26f25f7ec9c28b580cd24374d28f09d97a5d4f20b5e8e8feb181", 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: `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 0.01s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/bigmaths-4d6662e983ca9431)
[INFO] [stderr]    Doc-tests bigmaths
[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_little_pos_and_neg ... ok
[INFO] [stdout] test tests::bigint_add_big_two_pos ... ok
[INFO] [stdout] test tests::bigint_add_little_two_neg ... ok
[INFO] [stdout] test tests::bigint_add_little_two_pos ... ok
[INFO] [stdout] test tests::bigint_from_and_to_isize ... ok
[INFO] [stdout] test tests::bigint_from_max_isize ... ok
[INFO] [stdout] test tests::bigint_from_negative_isize ... ok
[INFO] [stdout] test tests::bigint_from_positive_isize ... ok
[INFO] [stdout] test tests::bigint_from_min_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_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 0.00s
[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" "7e723237f99a26f25f7ec9c28b580cd24374d28f09d97a5d4f20b5e8e8feb181", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7e723237f99a26f25f7ec9c28b580cd24374d28f09d97a5d4f20b5e8e8feb181", kill_on_drop: false }`
[INFO] [stdout] 7e723237f99a26f25f7ec9c28b580cd24374d28f09d97a5d4f20b5e8e8feb181