[INFO] fetching crate numberkit 0.1.0...
[INFO] testing numberkit-0.1.0 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate numberkit 0.1.0 into /workspace/builds/worker-31/source
[INFO] validating manifest of crates.io crate numberkit 0.1.0 on toolchain beta-2021-09-08
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate numberkit 0.1.0
[INFO] finished tweaking crates.io crate numberkit 0.1.0
[INFO] tweaked toml for crates.io crate numberkit 0.1.0 written to /workspace/builds/worker-31/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "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-31/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-31/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b5846211f60efb79eece1d4c61b703153ef3f83d720399c51bb5d1042a7b70a1
[INFO] running `Command { std: "docker" "start" "-a" "b5846211f60efb79eece1d4c61b703153ef3f83d720399c51bb5d1042a7b70a1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b5846211f60efb79eece1d4c61b703153ef3f83d720399c51bb5d1042a7b70a1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b5846211f60efb79eece1d4c61b703153ef3f83d720399c51bb5d1042a7b70a1", kill_on_drop: false }`
[INFO] [stdout] b5846211f60efb79eece1d4c61b703153ef3f83d720399c51bb5d1042a7b70a1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-31/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-31/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b7f2f18e3809cf72e8f381ab051fd48b18cdfaf05caa273ed01b8c7755507201
[INFO] running `Command { std: "docker" "start" "-a" "b7f2f18e3809cf72e8f381ab051fd48b18cdfaf05caa273ed01b8c7755507201", kill_on_drop: false }`
[INFO] [stderr]    Compiling numberkit v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::str::FromStr`
[INFO] [stdout]  --> src/lib.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::str::FromStr;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `has_negative` is assigned to, but never used
[INFO] [stdout]   --> src/lib.rs:18:11
[INFO] [stdout]    |
[INFO] [stdout] 18 |   let mut has_negative = false;
[INFO] [stdout]    |           ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout]    = note: consider using `_has_negative` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `has_negative` is never read
[INFO] [stdout]   --> src/lib.rs:28:7
[INFO] [stdout]    |
[INFO] [stdout] 28 |       has_negative = true;
[INFO] [stdout]    |       ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.95s
[INFO] running `Command { std: "docker" "inspect" "b7f2f18e3809cf72e8f381ab051fd48b18cdfaf05caa273ed01b8c7755507201", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b7f2f18e3809cf72e8f381ab051fd48b18cdfaf05caa273ed01b8c7755507201", kill_on_drop: false }`
[INFO] [stdout] b7f2f18e3809cf72e8f381ab051fd48b18cdfaf05caa273ed01b8c7755507201
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-31/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-31/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d34e4fcff41ed2fd46d42a23b031e16836121e24863bd544c41f6bf7e1001b20
[INFO] running `Command { std: "docker" "start" "-a" "d34e4fcff41ed2fd46d42a23b031e16836121e24863bd544c41f6bf7e1001b20", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stdout] warning: unused import: `std::str::FromStr`
[INFO] [stdout]  --> src/lib.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::str::FromStr;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling numberkit v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable `has_negative` is assigned to, but never used
[INFO] [stdout]   --> src/lib.rs:18:11
[INFO] [stdout]    |
[INFO] [stdout] 18 |   let mut has_negative = false;
[INFO] [stdout]    |           ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout]    = note: consider using `_has_negative` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `has_negative` is never read
[INFO] [stdout]   --> src/lib.rs:28:7
[INFO] [stdout]    |
[INFO] [stdout] 28 |       has_negative = true;
[INFO] [stdout]    |       ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::str::FromStr`
[INFO] [stdout]  --> src/lib.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::str::FromStr;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `has_negative` is assigned to, but never used
[INFO] [stdout]   --> src/lib.rs:18:11
[INFO] [stdout]    |
[INFO] [stdout] 18 |   let mut has_negative = false;
[INFO] [stdout]    |           ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout]    = note: consider using `_has_negative` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `has_negative` is never read
[INFO] [stdout]   --> src/lib.rs:28:7
[INFO] [stdout]    |
[INFO] [stdout] 28 |       has_negative = true;
[INFO] [stdout]    |       ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.62s
[INFO] running `Command { std: "docker" "inspect" "d34e4fcff41ed2fd46d42a23b031e16836121e24863bd544c41f6bf7e1001b20", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d34e4fcff41ed2fd46d42a23b031e16836121e24863bd544c41f6bf7e1001b20", kill_on_drop: false }`
[INFO] [stdout] d34e4fcff41ed2fd46d42a23b031e16836121e24863bd544c41f6bf7e1001b20
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-31/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-31/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 5d045f7467cfe2d559e1d7fc020dfc6d681e9fc1c0b86436c5a0f3be9db53a9a
[INFO] running `Command { std: "docker" "start" "-a" "5d045f7467cfe2d559e1d7fc020dfc6d681e9fc1c0b86436c5a0f3be9db53a9a", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `std::str::FromStr`
[INFO] [stderr]  --> src/lib.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::str::FromStr;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable `has_negative` is assigned to, but never used
[INFO] [stderr]   --> src/lib.rs:18:11
[INFO] [stderr]    |
[INFO] [stderr] 18 |   let mut has_negative = false;
[INFO] [stderr]    |           ^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr]    = note: consider using `_has_negative` instead
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `has_negative` is never read
[INFO] [stderr]   --> src/lib.rs:28:7
[INFO] [stderr]    |
[INFO] [stderr] 28 |       has_negative = true;
[INFO] [stderr]    |       ^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: `numberkit` (lib) generated 3 warnings
[INFO] [stderr] warning: `numberkit` (lib test) generated 3 warnings (3 duplicates)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/numberkit-386b688b1a8b875f)
[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] [stderr]      Running tests/test_numberkit.rs (/opt/rustwide/target/debug/deps/test_numberkit-2964b9abf69403e6)
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test test_as ... ok
[INFO] [stdout] test test_is_digit ... ok
[INFO] [stdout] test test_is_number ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests numberkit
[INFO] [stdout] 
[INFO] [stdout] running 32 tests
[INFO] [stdout] test src/lib.rs - as_i8d (line 150) ... ok
[INFO] [stdout] test src/lib.rs - as_i16 (line 168) ... ok
[INFO] [stdout] test src/lib.rs - as_i64d (line 237) ... ok
[INFO] [stdout] test src/lib.rs - as_usize (line 278) ... ok
[INFO] [stdout] test src/lib.rs - as_f32 (line 448) ... ok
[INFO] [stdout] test src/lib.rs - as_i64 (line 226) ... ok
[INFO] [stdout] test src/lib.rs - as_i128d (line 266) ... ok
[INFO] [stdout] test src/lib.rs - as_i16d (line 179) ... ok
[INFO] [stdout] test src/lib.rs - as_isize (line 110) ... ok
[INFO] [stdout] test src/lib.rs - as_u16 (line 336) ... ok
[INFO] [stdout] test src/lib.rs - as_i8 (line 139) ... ok
[INFO] [stdout] test src/lib.rs - as_usized (line 289) ... ok
[INFO] [stdout] test src/lib.rs - as_u128 (line 424) ... ok
[INFO] [stdout] test src/lib.rs - as_i128 (line 255) ... ok
[INFO] [stdout] test src/lib.rs - as_u32d (line 376) ... ok
[INFO] [stdout] test src/lib.rs - as_u8d (line 318) ... ok
[INFO] [stdout] test src/lib.rs - as_u32 (line 365) ... ok
[INFO] [stdout] test src/lib.rs - as_u8 (line 307) ... ok
[INFO] [stdout] test src/lib.rs - as_u64d (line 405) ... ok
[INFO] [stdout] test src/lib.rs - as_u128d (line 435) ... ok
[INFO] [stdout] test src/lib.rs - as_f32d (line 459) ... ok
[INFO] [stdout] test src/lib.rs - as_i32d (line 208) ... ok
[INFO] [stdout] test src/lib.rs - as_u64 (line 394) ... ok
[INFO] [stdout] test src/lib.rs - as_f64d (line 489) ... ok
[INFO] [stdout] test src/lib.rs - as_u16d (line 347) ... ok
[INFO] [stdout] test src/lib.rs - is_idigit (line 80) ... ok
[INFO] [stdout] test src/lib.rs - as_i32 (line 197) ... ok
[INFO] [stdout] test src/lib.rs - as_f64 (line 478) ... ok
[INFO] [stdout] test src/lib.rs - is_digit (line 91) ... ok
[INFO] [stdout] test src/lib.rs - is_udigit (line 69) ... ok
[INFO] [stdout] test src/lib.rs - as_isized (line 121) ... ok
[INFO] [stdout] test src/lib.rs - is_number (line 8) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 32 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.40s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "5d045f7467cfe2d559e1d7fc020dfc6d681e9fc1c0b86436c5a0f3be9db53a9a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5d045f7467cfe2d559e1d7fc020dfc6d681e9fc1c0b86436c5a0f3be9db53a9a", kill_on_drop: false }`
[INFO] [stdout] 5d045f7467cfe2d559e1d7fc020dfc6d681e9fc1c0b86436c5a0f3be9db53a9a