[INFO] cloning repository https://github.com/rclayton-the-terrible/bitmanip-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/rclayton-the-terrible/bitmanip-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frclayton-the-terrible%2Fbitmanip-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frclayton-the-terrible%2Fbitmanip-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 89593e4d60936f749136d89f670b23a7af3680f6
[INFO] checking rclayton-the-terrible/bitmanip-rust against master#b3bd7058c139e71bae0862ef8f8ac936208873e9 for pr-123752
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frclayton-the-terrible%2Fbitmanip-rust" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/rclayton-the-terrible/bitmanip-rust on toolchain b3bd7058c139e71bae0862ef8f8ac936208873e9
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b3bd7058c139e71bae0862ef8f8ac936208873e9" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/rclayton-the-terrible/bitmanip-rust
[INFO] finished tweaking git repo https://github.com/rclayton-the-terrible/bitmanip-rust
[INFO] tweaked toml for git repo https://github.com/rclayton-the-terrible/bitmanip-rust written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/rclayton-the-terrible/bitmanip-rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b3bd7058c139e71bae0862ef8f8ac936208873e9" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds
[ERROR] this task or one of its parent failed!
[ERROR] no output for 300 seconds
[ERROR] note: run with `RUST_BACKTRACE=1` to display a backtrace.
[INFO] checking rclayton-the-terrible/bitmanip-rust against try#57fe1b734d9ff1c8a92bda60b85506b9648158d3 for pr-123752
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frclayton-the-terrible%2Fbitmanip-rust" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/rclayton-the-terrible/bitmanip-rust on toolchain 57fe1b734d9ff1c8a92bda60b85506b9648158d3
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+57fe1b734d9ff1c8a92bda60b85506b9648158d3" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/rclayton-the-terrible/bitmanip-rust
[INFO] finished tweaking git repo https://github.com/rclayton-the-terrible/bitmanip-rust
[INFO] tweaked toml for git repo https://github.com/rclayton-the-terrible/bitmanip-rust written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/rclayton-the-terrible/bitmanip-rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+57fe1b734d9ff1c8a92bda60b85506b9648158d3" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds
[INFO] checking rclayton-the-terrible/bitmanip-rust against try#57fe1b734d9ff1c8a92bda60b85506b9648158d3 for pr-123752
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frclayton-the-terrible%2Fbitmanip-rust" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/rclayton-the-terrible/bitmanip-rust on toolchain 57fe1b734d9ff1c8a92bda60b85506b9648158d3
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+57fe1b734d9ff1c8a92bda60b85506b9648158d3" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/rclayton-the-terrible/bitmanip-rust
[INFO] finished tweaking git repo https://github.com/rclayton-the-terrible/bitmanip-rust
[INFO] tweaked toml for git repo https://github.com/rclayton-the-terrible/bitmanip-rust written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/rclayton-the-terrible/bitmanip-rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+57fe1b734d9ff1c8a92bda60b85506b9648158d3" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+57fe1b734d9ff1c8a92bda60b85506b9648158d3" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] eeecc25864083e44ec5c7293e54a6c9fae655da3e406d889f1b57d156fad4921
[INFO] running `Command { std: "docker" "start" "-a" "eeecc25864083e44ec5c7293e54a6c9fae655da3e406d889f1b57d156fad4921", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "eeecc25864083e44ec5c7293e54a6c9fae655da3e406d889f1b57d156fad4921", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eeecc25864083e44ec5c7293e54a6c9fae655da3e406d889f1b57d156fad4921", kill_on_drop: false }`
[INFO] [stdout] eeecc25864083e44ec5c7293e54a6c9fae655da3e406d889f1b57d156fad4921
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+57fe1b734d9ff1c8a92bda60b85506b9648158d3" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3e072dcc3d90a938ba2da2a62a120695974cd771b6b1ebc1d8afd6243826b1db
[INFO] running `Command { std: "docker" "start" "-a" "3e072dcc3d90a938ba2da2a62a120695974cd771b6b1ebc1d8afd6243826b1db", kill_on_drop: false }`
[INFO] [stderr]     Checking bitmanip v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function `to_decimal_places_vec` is never used
[INFO] [stdout]  --> src/decimal_places_vec.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub fn to_decimal_places_vec(num: u64) -> Vec<u8> {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `division_method` is never used
[INFO] [stdout]  --> src/count_digits_in_integer.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn division_method(int: i64) -> u64 {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `log10_method` is never used
[INFO] [stdout]   --> src/count_digits_in_integer.rs:11:8
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub fn log10_method(int: i64) -> u64 {
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `recursive_method` is never used
[INFO] [stdout]   --> src/count_digits_in_integer.rs:18:8
[INFO] [stdout]    |
[INFO] [stdout] 18 | pub fn recursive_method(int: i64) -> u64 {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `to_string_method` is never used
[INFO] [stdout]   --> src/count_digits_in_integer.rs:25:8
[INFO] [stdout]    |
[INFO] [stdout] 25 | pub fn to_string_method(int: i64) -> u64 {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `division_method` is never used
[INFO] [stdout]  --> src/decimal_to_binary.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub fn division_method(int: i64) -> Vec<u8> {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `division_bits_set` is never used
[INFO] [stdout]  --> src/bits_set.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn division_bits_set(int: i64) -> u64 {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `kernighans_bit_set` is never used
[INFO] [stdout]   --> src/bits_set.rs:13:8
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub fn kernighans_bit_set(int: i64) -> u64 {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `is_kth_bit_set` is never used
[INFO] [stdout]   --> src/bits_set.rs:23:8
[INFO] [stdout]    |
[INFO] [stdout] 23 | pub fn is_kth_bit_set(int: i64, k: i64) -> bool {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `first_set_bit` is never used
[INFO] [stdout]   --> src/bits_set.rs:38:8
[INFO] [stdout]    |
[INFO] [stdout] 38 | pub fn first_set_bit(int: i64) -> Option<i64> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `first_set_bit_from_right` is never used
[INFO] [stdout]   --> src/bits_set.rs:53:8
[INFO] [stdout]    |
[INFO] [stdout] 53 | pub fn first_set_bit_from_right(int: i64) -> Option<i64> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `bitwise_is_odd` is never used
[INFO] [stdout]  --> src/odd_or_even.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn bitwise_is_odd(int: i64) -> bool {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `bitwise_is_power_of_two` is never used
[INFO] [stdout]  --> src/power_of_two.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub fn bitwise_is_power_of_two(int: i64) -> bool {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `min_flips` is never used
[INFO] [stdout]  --> src/min_flips.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn min_flips(a: i64, b: i64, c:i64) -> i64 {
[INFO] [stdout]   |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `swap` is never used
[INFO] [stdout]  --> src/swap.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn swap(a: &mut i64, b: &mut i64) {
[INFO] [stdout]   |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `odd_occurring_element` is never used
[INFO] [stdout]  --> src/odd_occurring_element.rs:1:4
[INFO] [stdout]   |
[INFO] [stdout] 1 | fn odd_occurring_element(arr: &[i64]) -> i64 {
[INFO] [stdout]   |    ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `opposite_signs` is never used
[INFO] [stdout]  --> src/opposite_signs.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn opposite_signs(a: i64, b: i64) -> bool {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `find_missing_number` is never used
[INFO] [stdout]  --> src/find_missing_number.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn find_missing_number(arr: &[i64]) -> i64 {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 18 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.11s
[INFO] running `Command { std: "docker" "inspect" "3e072dcc3d90a938ba2da2a62a120695974cd771b6b1ebc1d8afd6243826b1db", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3e072dcc3d90a938ba2da2a62a120695974cd771b6b1ebc1d8afd6243826b1db", kill_on_drop: false }`
[INFO] [stdout] 3e072dcc3d90a938ba2da2a62a120695974cd771b6b1ebc1d8afd6243826b1db