[INFO] cloning repository https://github.com/lightstarp/big_number
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/lightstarp/big_number" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flightstarp%2Fbig_number", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flightstarp%2Fbig_number'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9a04f4cecbd5277a7f923111721e9fe6bdfe4464
[INFO] testing lightstarp/big_number against try#8da20828b6ea601dfd8e2448cb50ace88876bd78 for pr-150933
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flightstarp%2Fbig_number" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/lightstarp/big_number
[INFO] finished tweaking git repo https://github.com/lightstarp/big_number
[INFO] tweaked toml for git repo https://github.com/lightstarp/big_number written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/lightstarp/big_number on toolchain 8da20828b6ea601dfd8e2448cb50ace88876bd78
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8da20828b6ea601dfd8e2448cb50ace88876bd78" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/lightstarp/big_number 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" "+8da20828b6ea601dfd8e2448cb50ace88876bd78" "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-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:cfa559dde23f44738f9990739aaa3487d8df3af37eb5df0572f7cf76004a604a" "/opt/rustwide/cargo-home/bin/cargo" "+8da20828b6ea601dfd8e2448cb50ace88876bd78" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3e964867e603b1493e34838dd92e79a5120b115530c875f7fa2290d199595b0d
[INFO] running `Command { std: "docker" "start" "-a" "3e964867e603b1493e34838dd92e79a5120b115530c875f7fa2290d199595b0d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3e964867e603b1493e34838dd92e79a5120b115530c875f7fa2290d199595b0d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3e964867e603b1493e34838dd92e79a5120b115530c875f7fa2290d199595b0d", kill_on_drop: false }`
[INFO] [stdout] 3e964867e603b1493e34838dd92e79a5120b115530c875f7fa2290d199595b0d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:cfa559dde23f44738f9990739aaa3487d8df3af37eb5df0572f7cf76004a604a" "/opt/rustwide/cargo-home/bin/cargo" "+8da20828b6ea601dfd8e2448cb50ace88876bd78" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9448393da1aaaa2bc99e9334836f210d45feb473777c1abb030ddca5b6c77c48
[INFO] running `Command { std: "docker" "start" "-a" "9448393da1aaaa2bc99e9334836f210d45feb473777c1abb030ddca5b6c77c48", kill_on_drop: false }`
[INFO] [stderr]    Compiling big_number v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `super::Uvec`
[INFO] [stdout]  --> src/long/oparation/div.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use super::Uvec;
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `self::oparation::add`
[INFO] [stdout]  --> src/long.rs:6:9
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub use self::oparation::add;
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `val` is never read
[INFO] [stdout]  --> src/long/oparation/sub.rs:6:25
[INFO] [stdout]   |
[INFO] [stdout] 6 |     let mut val: u128 = 0;
[INFO] [stdout]   |                         ^
[INFO] [stdout]   |
[INFO] [stdout]   = help: maybe it is overwritten before being read?
[INFO] [stdout]   = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `pop` is never used
[INFO] [stdout]  --> src/long/oparation/pop.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | impl Uvec {
[INFO] [stdout]   | --------- method in this implementation
[INFO] [stdout] 4 |     pub fn pop(&mut self) -> u64 {
[INFO] [stdout]   |            ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `to_string2` is never used
[INFO] [stdout]  --> src/long/oparation/to_string2.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | impl Uvec {
[INFO] [stdout]   | --------- method in this implementation
[INFO] [stdout] 4 |     pub fn to_string2(&self) -> String {
[INFO] [stdout]   |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `add` is never used
[INFO] [stdout]  --> src/long/oparation/add.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub fn add(a: &Uvec,b: &Uvec) -> Uvec {
[INFO] [stdout]   |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `shl` is never used
[INFO] [stdout]  --> src/long/oparation/shl.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | impl Uvec {
[INFO] [stdout]   | --------- method in this implementation
[INFO] [stdout] 4 |     pub fn shl(&mut self, n: usize) {
[INFO] [stdout]   |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.20s
[INFO] running `Command { std: "docker" "inspect" "9448393da1aaaa2bc99e9334836f210d45feb473777c1abb030ddca5b6c77c48", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9448393da1aaaa2bc99e9334836f210d45feb473777c1abb030ddca5b6c77c48", kill_on_drop: false }`
[INFO] [stdout] 9448393da1aaaa2bc99e9334836f210d45feb473777c1abb030ddca5b6c77c48
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:cfa559dde23f44738f9990739aaa3487d8df3af37eb5df0572f7cf76004a604a" "/opt/rustwide/cargo-home/bin/cargo" "+8da20828b6ea601dfd8e2448cb50ace88876bd78" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 395e2526a52ef81ea760845b5a1c1ef54eea1bf6f3bf130eb6b8c94f17089e30
[INFO] running `Command { std: "docker" "start" "-a" "395e2526a52ef81ea760845b5a1c1ef54eea1bf6f3bf130eb6b8c94f17089e30", kill_on_drop: false }`
[INFO] [stderr]    Compiling big_number v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `super::Uvec`
[INFO] [stdout]  --> src/long/oparation/div.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use super::Uvec;
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `self::oparation::add`
[INFO] [stdout]  --> src/long.rs:6:9
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub use self::oparation::add;
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `val` is never read
[INFO] [stdout]  --> src/long/oparation/sub.rs:6:25
[INFO] [stdout]   |
[INFO] [stdout] 6 |     let mut val: u128 = 0;
[INFO] [stdout]   |                         ^
[INFO] [stdout]   |
[INFO] [stdout]   = help: maybe it is overwritten before being read?
[INFO] [stdout]   = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `pop` is never used
[INFO] [stdout]  --> src/long/oparation/pop.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | impl Uvec {
[INFO] [stdout]   | --------- method in this implementation
[INFO] [stdout] 4 |     pub fn pop(&mut self) -> u64 {
[INFO] [stdout]   |            ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `to_string2` is never used
[INFO] [stdout]  --> src/long/oparation/to_string2.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | impl Uvec {
[INFO] [stdout]   | --------- method in this implementation
[INFO] [stdout] 4 |     pub fn to_string2(&self) -> String {
[INFO] [stdout]   |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `add` is never used
[INFO] [stdout]  --> src/long/oparation/add.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub fn add(a: &Uvec,b: &Uvec) -> Uvec {
[INFO] [stdout]   |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `shl` is never used
[INFO] [stdout]  --> src/long/oparation/shl.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | impl Uvec {
[INFO] [stdout]   | --------- method in this implementation
[INFO] [stdout] 4 |     pub fn shl(&mut self, n: usize) {
[INFO] [stdout]   |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.13s
[INFO] running `Command { std: "docker" "inspect" "395e2526a52ef81ea760845b5a1c1ef54eea1bf6f3bf130eb6b8c94f17089e30", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "395e2526a52ef81ea760845b5a1c1ef54eea1bf6f3bf130eb6b8c94f17089e30", kill_on_drop: false }`
[INFO] [stdout] 395e2526a52ef81ea760845b5a1c1ef54eea1bf6f3bf130eb6b8c94f17089e30
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:cfa559dde23f44738f9990739aaa3487d8df3af37eb5df0572f7cf76004a604a" "/opt/rustwide/cargo-home/bin/cargo" "+8da20828b6ea601dfd8e2448cb50ace88876bd78" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 136fff6997116c7c8be20ad4f486bc9bff63438bc3ce95afa003fef4c4679a1f
[INFO] running `Command { std: "docker" "start" "-a" "136fff6997116c7c8be20ad4f486bc9bff63438bc3ce95afa003fef4c4679a1f", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `super::Uvec`
[INFO] [stderr]  --> src/long/oparation/div.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use super::Uvec;
[INFO] [stderr]   |     ^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `self::oparation::add`
[INFO] [stderr]  --> src/long.rs:6:9
[INFO] [stderr]   |
[INFO] [stderr] 6 | pub use self::oparation::add;
[INFO] [stderr]   |         ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `val` is never read
[INFO] [stderr]  --> src/long/oparation/sub.rs:6:25
[INFO] [stderr]   |
[INFO] [stderr] 6 |     let mut val: u128 = 0;
[INFO] [stderr]   |                         ^
[INFO] [stderr]   |
[INFO] [stderr]   = help: maybe it is overwritten before being read?
[INFO] [stderr]   = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method `pop` is never used
[INFO] [stderr]  --> src/long/oparation/pop.rs:4:12
[INFO] [stderr]   |
[INFO] [stderr] 3 | impl Uvec {
[INFO] [stderr]   | --------- method in this implementation
[INFO] [stderr] 4 |     pub fn pop(&mut self) -> u64 {
[INFO] [stderr]   |            ^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method `to_string2` is never used
[INFO] [stderr]  --> src/long/oparation/to_string2.rs:4:12
[INFO] [stderr]   |
[INFO] [stderr] 3 | impl Uvec {
[INFO] [stderr]   | --------- method in this implementation
[INFO] [stderr] 4 |     pub fn to_string2(&self) -> String {
[INFO] [stderr]   |            ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `add` is never used
[INFO] [stderr]  --> src/long/oparation/add.rs:3:8
[INFO] [stderr]   |
[INFO] [stderr] 3 | pub fn add(a: &Uvec,b: &Uvec) -> Uvec {
[INFO] [stderr]   |        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method `shl` is never used
[INFO] [stderr]  --> src/long/oparation/shl.rs:4:12
[INFO] [stderr]   |
[INFO] [stderr] 3 | impl Uvec {
[INFO] [stderr]   | --------- method in this implementation
[INFO] [stderr] 4 |     pub fn shl(&mut self, n: usize) {
[INFO] [stderr]   |            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `big_number` (bin "big_number" test) generated 7 warnings (run `cargo fix --bin "big_number" -p big_number --tests` to apply 2 suggestions)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/big_number-bd39d0909f2f4648)
[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" "136fff6997116c7c8be20ad4f486bc9bff63438bc3ce95afa003fef4c4679a1f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "136fff6997116c7c8be20ad4f486bc9bff63438bc3ce95afa003fef4c4679a1f", kill_on_drop: false }`
[INFO] [stdout] 136fff6997116c7c8be20ad4f486bc9bff63438bc3ce95afa003fef4c4679a1f