[INFO] fetching crate fixed-sqrt 0.2.4...
[INFO] testing fixed-sqrt-0.2.4 against beta-2022-02-22 for beta-1.60-1
[INFO] extracting crate fixed-sqrt 0.2.4 into /workspace/builds/worker-105/source
[INFO] validating manifest of crates.io crate fixed-sqrt 0.2.4 on toolchain beta-2022-02-22
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-105/source/rust-toolchain
[INFO] started tweaking crates.io crate fixed-sqrt 0.2.4
[INFO] finished tweaking crates.io crate fixed-sqrt 0.2.4
[INFO] tweaked toml for crates.io crate fixed-sqrt 0.2.4 written to /workspace/builds/worker-105/source/Cargo.toml
[INFO] crate crates.io crate fixed-sqrt 0.2.4 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded integer-sqrt v0.1.3
[INFO] [stderr]   Downloaded fixed v1.1.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-105/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-105/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1de878b647d28f0c327186e70c7b834441ebfabfc43ba0f0b7a8b59bfcae3bb8
[INFO] running `Command { std: "docker" "start" "-a" "1de878b647d28f0c327186e70c7b834441ebfabfc43ba0f0b7a8b59bfcae3bb8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1de878b647d28f0c327186e70c7b834441ebfabfc43ba0f0b7a8b59bfcae3bb8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1de878b647d28f0c327186e70c7b834441ebfabfc43ba0f0b7a8b59bfcae3bb8", kill_on_drop: false }`
[INFO] [stdout] 1de878b647d28f0c327186e70c7b834441ebfabfc43ba0f0b7a8b59bfcae3bb8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-105/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-105/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6e0df65fc6163b5295e9a73fd16eb6adadda1cff50f78494d1aacc0b887e3605
[INFO] running `Command { std: "docker" "start" "-a" "6e0df65fc6163b5295e9a73fd16eb6adadda1cff50f78494d1aacc0b887e3605", kill_on_drop: false }`
[INFO] [stderr]    Compiling typenum v1.12.0
[INFO] [stderr]    Compiling fixed v1.1.0
[INFO] [stderr]    Compiling integer-sqrt v0.1.3
[INFO] [stderr]    Compiling fixed-sqrt v0.2.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 9.86s
[INFO] running `Command { std: "docker" "inspect" "6e0df65fc6163b5295e9a73fd16eb6adadda1cff50f78494d1aacc0b887e3605", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6e0df65fc6163b5295e9a73fd16eb6adadda1cff50f78494d1aacc0b887e3605", kill_on_drop: false }`
[INFO] [stdout] 6e0df65fc6163b5295e9a73fd16eb6adadda1cff50f78494d1aacc0b887e3605
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-105/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-105/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6e02430c5f3563b3bbd6d2f1120090c127f63b5883c391895e05f6d82e073fb6
[INFO] running `Command { std: "docker" "start" "-a" "6e02430c5f3563b3bbd6d2f1120090c127f63b5883c391895e05f6d82e073fb6", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.74
[INFO] [stderr]    Compiling unicode-width v0.1.8
[INFO] [stderr]    Compiling strsim v0.8.0
[INFO] [stderr]    Compiling vec_map v0.8.2
[INFO] [stderr]    Compiling ansi_term v0.11.0
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling clap v2.33.1
[INFO] [stderr]    Compiling fixed-sqrt v0.2.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `fixed`
[INFO] [stdout]   --> examples/errors.rs:20:3
[INFO] [stdout]    |
[INFO] [stdout] 20 |   pub fixed   : F,
[INFO] [stdout]    |   ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] note: `MaxErr` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   --> examples/errors.rs:18:10
[INFO] [stdout]    |
[INFO] [stdout] 18 | #[derive(Debug, Default)]
[INFO] [stdout]    |          ^^^^^
[INFO] [stdout]    = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `sqrt`
[INFO] [stdout]   --> examples/errors.rs:21:3
[INFO] [stdout]    |
[INFO] [stdout] 21 |   pub sqrt    : F,
[INFO] [stdout]    |   ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: `MaxErr` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   --> examples/errors.rs:18:10
[INFO] [stdout]    |
[INFO] [stdout] 18 | #[derive(Debug, Default)]
[INFO] [stdout]    |          ^^^^^
[INFO] [stdout]    = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `exact`
[INFO] [stdout]   --> examples/errors.rs:22:3
[INFO] [stdout]    |
[INFO] [stdout] 22 |   pub exact   : f64,
[INFO] [stdout]    |   ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: `MaxErr` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   --> examples/errors.rs:18:10
[INFO] [stdout]    |
[INFO] [stdout] 18 | #[derive(Debug, Default)]
[INFO] [stdout]    |          ^^^^^
[INFO] [stdout]    = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 8.58s
[INFO] running `Command { std: "docker" "inspect" "6e02430c5f3563b3bbd6d2f1120090c127f63b5883c391895e05f6d82e073fb6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6e02430c5f3563b3bbd6d2f1120090c127f63b5883c391895e05f6d82e073fb6", kill_on_drop: false }`
[INFO] [stdout] 6e02430c5f3563b3bbd6d2f1120090c127f63b5883c391895e05f6d82e073fb6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-105/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-105/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] a946c39974076b58a8e20c5aa10543fae20839566342836d4054c7ad686e02ae
[INFO] running `Command { std: "docker" "start" "-a" "a946c39974076b58a8e20c5aa10543fae20839566342836d4054c7ad686e02ae", kill_on_drop: false }`
[INFO] [stderr] warning: field is never read: `fixed`
[INFO] [stderr]   --> examples/errors.rs:20:3
[INFO] [stderr]    |
[INFO] [stderr] 20 |   pub fixed   : F,
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] note: `MaxErr` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]   --> examples/errors.rs:18:10
[INFO] [stderr]    |
[INFO] [stderr] 18 | #[derive(Debug, Default)]
[INFO] [stderr]    |          ^^^^^
[INFO] [stderr]    = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `sqrt`
[INFO] [stderr]   --> examples/errors.rs:21:3
[INFO] [stderr]    |
[INFO] [stderr] 21 |   pub sqrt    : F,
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr] note: `MaxErr` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]   --> examples/errors.rs:18:10
[INFO] [stderr]    |
[INFO] [stderr] 18 | #[derive(Debug, Default)]
[INFO] [stderr]    |          ^^^^^
[INFO] [stderr]    = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `exact`
[INFO] [stderr]   --> examples/errors.rs:22:3
[INFO] [stderr]    |
[INFO] [stderr] 22 |   pub exact   : f64,
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr] note: `MaxErr` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]   --> examples/errors.rs:18:10
[INFO] [stderr]    |
[INFO] [stderr] 18 | #[derive(Debug, Default)]
[INFO] [stderr]    |          ^^^^^
[INFO] [stderr]    = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: `fixed-sqrt` (example "errors") generated 3 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.18s
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/fixed_sqrt-c8f862efe8be007d)
[INFO] [stdout] test tests::test_sqrt_max ... ok
[INFO] [stdout] test tests::test_sqrt_negative - should panic ... ok
[INFO] [stdout] test tests::test_sqrt ... ok
[INFO] [stdout] test tests::test_sqrt_signed_exhaustive ... ok
[INFO] [stderr]    Doc-tests fixed-sqrt
[INFO] [stdout] test tests::test_sqrt_unsigned_exhaustive ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.84s
[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" "a946c39974076b58a8e20c5aa10543fae20839566342836d4054c7ad686e02ae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a946c39974076b58a8e20c5aa10543fae20839566342836d4054c7ad686e02ae", kill_on_drop: false }`
[INFO] [stdout] a946c39974076b58a8e20c5aa10543fae20839566342836d4054c7ad686e02ae