[INFO] cloning repository https://github.com/r4gus/greasy
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/r4gus/greasy" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fr4gus%2Fgreasy", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fr4gus%2Fgreasy'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d04f11e6f70093cae207028809d9cdb2143acd56
[INFO] testing r4gus/greasy against beta-2021-08-01 for beta-1.55-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fr4gus%2Fgreasy" "/workspace/builds/worker-1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/r4gus/greasy on toolchain beta-2021-08-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/r4gus/greasy
[INFO] finished tweaking git repo https://github.com/r4gus/greasy
[INFO] tweaked toml for git repo https://github.com/r4gus/greasy written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/r4gus/greasy already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 03abed329bf379727e7421d45e90098717686b3f8d76dd2120e34e728d286434
[INFO] running `Command { std: "docker" "start" "-a" "03abed329bf379727e7421d45e90098717686b3f8d76dd2120e34e728d286434", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "03abed329bf379727e7421d45e90098717686b3f8d76dd2120e34e728d286434", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "03abed329bf379727e7421d45e90098717686b3f8d76dd2120e34e728d286434", kill_on_drop: false }`
[INFO] [stdout] 03abed329bf379727e7421d45e90098717686b3f8d76dd2120e34e728d286434
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d334fadf9f416ce479ec5edec526328ecfd32ffde73f7db390bad7edae89b5e8
[INFO] running `Command { std: "docker" "start" "-a" "d334fadf9f416ce479ec5edec526328ecfd32ffde73f7db390bad7edae89b5e8", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.72
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling strsim v0.8.0
[INFO] [stderr]    Compiling ascii v1.0.0
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling memmap v0.7.0
[INFO] [stderr]    Compiling clap v2.33.1
[INFO] [stderr]    Compiling greasy v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `ffi::CString`
[INFO] [stdout]  --> src/formats/fat_entry.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 |     ffi::CString,
[INFO] [stdout]   |     ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `sector_to_cluster`
[INFO] [stdout]    --> src/formats/fat.rs:110:8
[INFO] [stdout]     |
[INFO] [stdout] 110 |     fn sector_to_cluster(&self, sector: &Sector) -> Cluster {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `SubCommand`
[INFO] [stdout]  --> src/main.rs:6:22
[INFO] [stdout]   |
[INFO] [stdout] 6 | use clap::{Arg, App, SubCommand};
[INFO] [stdout]   |                      ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 14.15s
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "d334fadf9f416ce479ec5edec526328ecfd32ffde73f7db390bad7edae89b5e8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d334fadf9f416ce479ec5edec526328ecfd32ffde73f7db390bad7edae89b5e8", kill_on_drop: false }`
[INFO] [stdout] d334fadf9f416ce479ec5edec526328ecfd32ffde73f7db390bad7edae89b5e8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9743b1b1ed1a5876275727e5285f0135b791fa8b692728feb14f60bfde7103f8
[INFO] running `Command { std: "docker" "start" "-a" "9743b1b1ed1a5876275727e5285f0135b791fa8b692728feb14f60bfde7103f8", kill_on_drop: false }`
[INFO] [stderr]    Compiling greasy v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `ffi::CString`
[INFO] [stdout]  --> src/formats/fat_entry.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 |     ffi::CString,
[INFO] [stdout]   |     ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `sector_to_cluster`
[INFO] [stdout]    --> src/formats/fat.rs:110:8
[INFO] [stdout]     |
[INFO] [stdout] 110 |     fn sector_to_cluster(&self, sector: &Sector) -> Cluster {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `SubCommand`
[INFO] [stdout]  --> src/main.rs:6:22
[INFO] [stdout]   |
[INFO] [stdout] 6 | use clap::{Arg, App, SubCommand};
[INFO] [stdout]   |                      ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `ffi::CString`
[INFO] [stdout]  --> src/formats/fat_entry.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 |     ffi::CString,
[INFO] [stdout]   |     ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `sector_to_cluster`
[INFO] [stdout]    --> src/formats/fat.rs:110:8
[INFO] [stdout]     |
[INFO] [stdout] 110 |     fn sector_to_cluster(&self, sector: &Sector) -> Cluster {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.79s
[INFO] running `Command { std: "docker" "inspect" "9743b1b1ed1a5876275727e5285f0135b791fa8b692728feb14f60bfde7103f8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9743b1b1ed1a5876275727e5285f0135b791fa8b692728feb14f60bfde7103f8", kill_on_drop: false }`
[INFO] [stdout] 9743b1b1ed1a5876275727e5285f0135b791fa8b692728feb14f60bfde7103f8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 32fe38020eee3aee53b7b7fb356bcdf6959105b5698cee46bef4a170fbd04a1c
[INFO] running `Command { std: "docker" "start" "-a" "32fe38020eee3aee53b7b7fb356bcdf6959105b5698cee46bef4a170fbd04a1c", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `ffi::CString`
[INFO] [stderr]  --> src/formats/fat_entry.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 |     ffi::CString,
[INFO] [stderr]   |     ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `sector_to_cluster`
[INFO] [stderr]    --> src/formats/fat.rs:110:8
[INFO] [stderr]     |
[INFO] [stderr] 110 |     fn sector_to_cluster(&self, sector: &Sector) -> Cluster {
[INFO] [stderr]     |        ^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `greasy` (lib) generated 2 warnings
[INFO] [stderr] warning: `greasy` (lib test) generated 2 warnings (2 duplicates)
[INFO] [stderr] warning: unused import: `SubCommand`
[INFO] [stderr]  --> src/main.rs:6:22
[INFO] [stderr]   |
[INFO] [stderr] 6 | use clap::{Arg, App, SubCommand};
[INFO] [stderr]   |                      ^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `greasy` (bin "greasy" test) generated 1 warning
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/greasy-7ba42057db21c760)
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/greasy-3735e2915ab787c0)
[INFO] [stderr]    Doc-tests greasy
[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] [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] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test src/formats/fat_entry.rs - formats::fat_entry::Entry::checksum (line 76) ... FAILED
[INFO] [stdout] test src/formats/fat.rs - formats::fat::Fat::new (line 202) ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/formats/fat_entry.rs - formats::fat_entry::Entry::checksum (line 76) stdout ----
[INFO] [stdout] error[E0603]: struct `Entry` is private
[INFO] [stdout]  --> src/formats/fat_entry.rs:77:27
[INFO] [stdout]   |
[INFO] [stdout] 4 | use greasy::formats::fat::Entry;
[INFO] [stdout]   |                           ^^^^^ private struct
[INFO] [stdout]   |
[INFO] [stdout] note: the struct `Entry` is defined here
[INFO] [stdout]  --> /opt/rustwide/workdir/src/formats/fat.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use super::fat_entry::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0603`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/formats/fat.rs - formats::fat::Fat::new (line 202) stdout ----
[INFO] [stdout] error[E0432]: unresolved import `MmapOptions`
[INFO] [stdout]  --> src/formats/fat.rs:204:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use MmapOptions;
[INFO] [stdout]   |     ^^^^^^^^^^^ no external crate `MmapOptions`
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the `?` operator can only be used in a function that returns `Result` or `Option` (or another type that implements `FromResidual`)
[INFO] [stdout]    --> src/formats/fat.rs:207:35
[INFO] [stdout]     |
[INFO] [stdout] 3   |   fn main() { #[allow(non_snake_case)] fn _doctest_main_src_formats_fat_rs_202_0() {
[INFO] [stdout]     |  ______________________________________-
[INFO] [stdout] 4   | | use greasy::formats::fat;
[INFO] [stdout] 5   | | use MmapOptions;
[INFO] [stdout] 6   | | use std::fs::File;
[INFO] [stdout] 7   | |
[INFO] [stdout] 8   | | let file = File::open("fat-16.dd")?;                    // open a fat volume
[INFO] [stdout]     | |                                   ^ cannot use the `?` operator in a function that returns `()`
[INFO] [stdout] ...   |
[INFO] [stdout] 11  | | let fat = fat::Fat::new(mem);                           // create a new Fat object
[INFO] [stdout] 12  | | } _doctest_main_src_formats_fat_rs_202_0() }
[INFO] [stdout]     | |_- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout]     |
[INFO] [stdout]     = help: the trait `FromResidual<Result<Infallible, std::io::Error>>` is not implemented for `()`
[INFO] [stdout] note: required by `from_residual`
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the `?` operator can only be used in a function that returns `Result` or `Option` (or another type that implements `FromResidual`)
[INFO] [stdout]    --> src/formats/fat.rs:208:49
[INFO] [stdout]     |
[INFO] [stdout] 3   |   fn main() { #[allow(non_snake_case)] fn _doctest_main_src_formats_fat_rs_202_0() {
[INFO] [stdout]     |  ______________________________________-
[INFO] [stdout] 4   | | use greasy::formats::fat;
[INFO] [stdout] 5   | | use MmapOptions;
[INFO] [stdout] 6   | | use std::fs::File;
[INFO] [stdout] ...   |
[INFO] [stdout] 9   | | let mem = unsafe { MmapOptions::new().map(&file)? };    // map the volume into memory
[INFO] [stdout]     | |                                                 ^ cannot use the `?` operator in a function that returns `()`
[INFO] [stdout] 10  | |
[INFO] [stdout] 11  | | let fat = fat::Fat::new(mem);                           // create a new Fat object
[INFO] [stdout] 12  | | } _doctest_main_src_formats_fat_rs_202_0() }
[INFO] [stdout]     | |_- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout]     |
[INFO] [stdout]     = help: the trait `FromResidual<_>` is not implemented for `()`
[INFO] [stdout] note: required by `from_residual`
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0277, E0432.
[INFO] [stdout] For more information about an error, try `rustc --explain E0277`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/formats/fat.rs - formats::fat::Fat::new (line 202)
[INFO] [stdout]     src/formats/fat_entry.rs - formats::fat_entry::Entry::checksum (line 76)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 2 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.22s
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass '--doc'
[INFO] running `Command { std: "docker" "inspect" "32fe38020eee3aee53b7b7fb356bcdf6959105b5698cee46bef4a170fbd04a1c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "32fe38020eee3aee53b7b7fb356bcdf6959105b5698cee46bef4a170fbd04a1c", kill_on_drop: false }`
[INFO] [stdout] 32fe38020eee3aee53b7b7fb356bcdf6959105b5698cee46bef4a170fbd04a1c
