[INFO] fetching crate pi_util 0.1.0...
[INFO] testing pi_util-0.1.0 against 1.91.0 for beta-1.92-2
[INFO] extracting crate pi_util 0.1.0 into /workspace/builds/worker-7-tc1/source
[INFO] started tweaking crates.io crate pi_util 0.1.0
[INFO] finished tweaking crates.io crate pi_util 0.1.0
[INFO] tweaked toml for crates.io crate pi_util 0.1.0 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate pi_util 0.1.0 on toolchain 1.91.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.91.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.91.0" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 1 package to latest compatible version
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.91.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 66cd45c33bf17bf3b7b136e78029f9e0c435db4d6f4438046509aa7683e0df69
[INFO] running `Command { std: "docker" "start" "-a" "66cd45c33bf17bf3b7b136e78029f9e0c435db4d6f4438046509aa7683e0df69", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "66cd45c33bf17bf3b7b136e78029f9e0c435db4d6f4438046509aa7683e0df69", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "66cd45c33bf17bf3b7b136e78029f9e0c435db4d6f4438046509aa7683e0df69", kill_on_drop: false }`
[INFO] [stdout] 66cd45c33bf17bf3b7b136e78029f9e0c435db4d6f4438046509aa7683e0df69
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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" "RUSTDOCFLAGS=--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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fffcdc84bc977cbb591374945149dce15e98f493f35a55cb82a9abef8f388310
[INFO] running `Command { std: "docker" "start" "-a" "fffcdc84bc977cbb591374945149dce15e98f493f35a55cb82a9abef8f388310", kill_on_drop: false }`
[INFO] [stderr]    Compiling pi_util v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.06s
[INFO] running `Command { std: "docker" "inspect" "fffcdc84bc977cbb591374945149dce15e98f493f35a55cb82a9abef8f388310", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fffcdc84bc977cbb591374945149dce15e98f493f35a55cb82a9abef8f388310", kill_on_drop: false }`
[INFO] [stdout] fffcdc84bc977cbb591374945149dce15e98f493f35a55cb82a9abef8f388310
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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" "RUSTDOCFLAGS=--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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f6888e711965d85b2020b6dc710e1f65930df7a64aa0e3e652a97bac7632d6fe
[INFO] running `Command { std: "docker" "start" "-a" "f6888e711965d85b2020b6dc710e1f65930df7a64aa0e3e652a97bac7632d6fe", kill_on_drop: false }`
[INFO] [stderr]    Compiling pi_util v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.11s
[INFO] running `Command { std: "docker" "inspect" "f6888e711965d85b2020b6dc710e1f65930df7a64aa0e3e652a97bac7632d6fe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f6888e711965d85b2020b6dc710e1f65930df7a64aa0e3e652a97bac7632d6fe", kill_on_drop: false }`
[INFO] [stdout] f6888e711965d85b2020b6dc710e1f65930df7a64aa0e3e652a97bac7632d6fe
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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" "RUSTDOCFLAGS=--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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 272a58ea32bb82fbff452701095c1b5ef5079edf2968838616261f2144d7bfa6
[INFO] running `Command { std: "docker" "start" "-a" "272a58ea32bb82fbff452701095c1b5ef5079edf2968838616261f2144d7bfa6", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/pi_util-802697f388d85d8a)
[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]    Doc-tests pi_util
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test src/lib.rs - FetchDefault (line 76) ... FAILED
[INFO] [stdout] test src/lib.rs - FetchCloneDefault (line 103) ... FAILED
[INFO] [stdout] test src/lib.rs - IndexOf (line 6) ... FAILED
[INFO] [stdout] test src/lib.rs - PrecisionRound (line 46) ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/lib.rs - FetchDefault (line 76) stdout ----
[INFO] [stdout] error[E0599]: no method named `fetch_default` found for enum `Option<T>` in the current scope
[INFO] [stdout]  --> src/lib.rs:80:20
[INFO] [stdout]   |
[INFO] [stdout] 6 | let cloned = opt_x.fetch_default();
[INFO] [stdout]   |                    ^^^^^^^^^^^^^ method not found in `Option<{integer}>`
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `fetch_default` found for enum `Option<T>` in the current scope
[INFO] [stdout]  --> src/lib.rs:82:17
[INFO] [stdout]   |
[INFO] [stdout] 8 | assert_eq!(None.fetch_default(), 0);
[INFO] [stdout]   |                 ^^^^^^^^^^^^^ method not found in `Option<_>`
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0599`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/lib.rs - FetchCloneDefault (line 103) stdout ----
[INFO] [stdout] error[E0599]: no method named `fetch_clone` found for enum `Option<T>` in the current scope
[INFO] [stdout]  --> src/lib.rs:106:20
[INFO] [stdout]   |
[INFO] [stdout] 5 | let cloned = opt_x.fetch_clone();
[INFO] [stdout]   |                    ^^^^^^^^^^^ method not found in `Option<{integer}>`
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `cloned` found for enum `Option<{integer}>` in the current scope
[INFO] [stdout]  --> src/lib.rs:108:26
[INFO] [stdout]   |
[INFO] [stdout] 7 | assert_eq!(cloned, opt_x.cloned().fetch_default());
[INFO] [stdout]   |                          ^^^^^^ `Option<{integer}>` is not an iterator
[INFO] [stdout]   |
[INFO] [stdout] help: call `.into_iter()` first
[INFO] [stdout]   |
[INFO] [stdout] 7 | assert_eq!(cloned, opt_x.into_iter().cloned().fetch_default());
[INFO] [stdout]   |                          ++++++++++++
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `fetch_clone` found for enum `Option<T>` in the current scope
[INFO] [stdout]  --> src/lib.rs:109:17
[INFO] [stdout]   |
[INFO] [stdout] 8 | assert_eq!(None.fetch_clone(), 0);
[INFO] [stdout]   |                 ^^^^^^^^^^^ method not found in `Option<_>`
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0599`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/lib.rs - IndexOf (line 6) stdout ----
[INFO] [stdout] error[E0599]: no method named `index_of` found for array `[{integer}; 3]` in the current scope
[INFO] [stdout]  --> src/lib.rs:8:14
[INFO] [stdout]   |
[INFO] [stdout] 4 | assert_eq!(v.index_of(&30), Some(2));
[INFO] [stdout]   |              ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout] help: there is a method `index` with a similar name
[INFO] [stdout]   |
[INFO] [stdout] 4 - assert_eq!(v.index_of(&30), Some(2));
[INFO] [stdout] 4 + assert_eq!(v.index(&30), Some(2));
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `index_of` found for array `[{integer}; 3]` in the current scope
[INFO] [stdout]  --> src/lib.rs:9:15
[INFO] [stdout]   |
[INFO] [stdout] 5 | assert_eq!(!v.index_of(&50), None);
[INFO] [stdout]   |               ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout] help: there is a method `index` with a similar name
[INFO] [stdout]   |
[INFO] [stdout] 5 - assert_eq!(!v.index_of(&50), None);
[INFO] [stdout] 5 + assert_eq!(!v.index(&50), None);
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0599`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/lib.rs - PrecisionRound (line 46) stdout ----
[INFO] [stdout] error[E0061]: this method takes 0 arguments but 1 argument was supplied
[INFO] [stdout]  --> src/lib.rs:47:21
[INFO] [stdout]   |
[INFO] [stdout] 3 | assert_eq!(2.51_f32.round(-1), 2.5_f32);
[INFO] [stdout]   |                     ^^^^^ -- unexpected argument of type `{integer}`
[INFO] [stdout]   |
[INFO] [stdout] note: method defined here
[INFO] [stdout]  --> /rustc/f8297e351a40c1439a467bbbb6879088047f50b3/library/std/src/num/f32.rs:101:18
[INFO] [stdout] help: remove the extra argument
[INFO] [stdout]   |
[INFO] [stdout] 3 - assert_eq!(2.51_f32.round(-1), 2.5_f32);
[INFO] [stdout] 3 + assert_eq!(2.51_f32.round(), 2.5_f32);
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] error[E0061]: this method takes 0 arguments but 1 argument was supplied
[INFO] [stdout]  --> src/lib.rs:48:22
[INFO] [stdout]   |
[INFO] [stdout] 4 | assert_eq!(278.2_f32.round(0), 278_f64);
[INFO] [stdout]   |                      ^^^^^ - unexpected argument of type `{integer}`
[INFO] [stdout]   |
[INFO] [stdout] note: method defined here
[INFO] [stdout]  --> /rustc/f8297e351a40c1439a467bbbb6879088047f50b3/library/std/src/num/f32.rs:101:18
[INFO] [stdout] help: remove the extra argument
[INFO] [stdout]   |
[INFO] [stdout] 4 - assert_eq!(278.2_f32.round(0), 278_f64);
[INFO] [stdout] 4 + assert_eq!(278.2_f32.round(), 278_f64);
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]  --> src/lib.rs:48:32
[INFO] [stdout]   |
[INFO] [stdout] 4 | assert_eq!(278.2_f32.round(0), 278_f64);
[INFO] [stdout]   |                                ^^^^^^^ expected `f32`, found `f64`
[INFO] [stdout]   |
[INFO] [stdout] help: change the type of the numeric literal from `f64` to `f32`
[INFO] [stdout]   |
[INFO] [stdout] 4 - assert_eq!(278.2_f32.round(0), 278_f64);
[INFO] [stdout] 4 + assert_eq!(278.2_f32.round(0), 278_f32);
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] error[E0061]: this method takes 0 arguments but 1 argument was supplied
[INFO] [stdout]  --> src/lib.rs:49:23
[INFO] [stdout]   |
[INFO] [stdout] 5 | assert_eq!(-278.2_f64.round(1), -270_f64);
[INFO] [stdout]   |                       ^^^^^ - unexpected argument of type `{integer}`
[INFO] [stdout]   |
[INFO] [stdout] note: method defined here
[INFO] [stdout]  --> /rustc/f8297e351a40c1439a467bbbb6879088047f50b3/library/std/src/num/f64.rs:101:18
[INFO] [stdout] help: remove the extra argument
[INFO] [stdout]   |
[INFO] [stdout] 5 - assert_eq!(-278.2_f64.round(1), -270_f64);
[INFO] [stdout] 5 + assert_eq!(-278.2_f64.round(), -270_f64);
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 4 previous errors
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0061, E0308.
[INFO] [stdout] For more information about an error, try `rustc --explain E0061`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/lib.rs - FetchCloneDefault (line 103)
[INFO] [stdout]     src/lib.rs - FetchDefault (line 76)
[INFO] [stdout]     src/lib.rs - IndexOf (line 6)
[INFO] [stdout]     src/lib.rs - PrecisionRound (line 46)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 4 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.14s
[INFO] [stdout] 
[INFO] [stderr] error: doctest failed, to rerun pass `--doc`
[INFO] running `Command { std: "docker" "inspect" "272a58ea32bb82fbff452701095c1b5ef5079edf2968838616261f2144d7bfa6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "272a58ea32bb82fbff452701095c1b5ef5079edf2968838616261f2144d7bfa6", kill_on_drop: false }`
[INFO] [stdout] 272a58ea32bb82fbff452701095c1b5ef5079edf2968838616261f2144d7bfa6