[INFO] cloning repository https://github.com/migmedia/zfs-autosnaprs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/migmedia/zfs-autosnaprs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmigmedia%2Fzfs-autosnaprs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmigmedia%2Fzfs-autosnaprs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4890f76a8d3396540d0e926ea3c8cd49b374b636
[INFO] testing migmedia/zfs-autosnaprs against beta-2022-04-10 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmigmedia%2Fzfs-autosnaprs" "/workspace/builds/worker-0/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/migmedia/zfs-autosnaprs on toolchain beta-2022-04-10
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/migmedia/zfs-autosnaprs
[INFO] finished tweaking git repo https://github.com/migmedia/zfs-autosnaprs
[INFO] tweaked toml for git repo https://github.com/migmedia/zfs-autosnaprs written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/migmedia/zfs-autosnaprs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "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-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8e0b66157d6cfaa730f32b6443996304033963a5dc55dbb235721049aacb3363
[INFO] running `Command { std: "docker" "start" "-a" "8e0b66157d6cfaa730f32b6443996304033963a5dc55dbb235721049aacb3363", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8e0b66157d6cfaa730f32b6443996304033963a5dc55dbb235721049aacb3363", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8e0b66157d6cfaa730f32b6443996304033963a5dc55dbb235721049aacb3363", kill_on_drop: false }`
[INFO] [stdout] 8e0b66157d6cfaa730f32b6443996304033963a5dc55dbb235721049aacb3363
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b1800fffeb39289c29f1543b55cb77984277a3a69c50a2b17547a9587dcd1c55
[INFO] running `Command { std: "docker" "start" "-a" "b1800fffeb39289c29f1543b55cb77984277a3a69c50a2b17547a9587dcd1c55", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.7
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling syn v1.0.13
[INFO] [stderr]    Compiling libc v0.2.66
[INFO] [stderr]    Compiling autocfg v0.1.7
[INFO] [stderr]    Compiling strsim v0.9.3
[INFO] [stderr]    Compiling fnv v1.0.6
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling ident_case v1.0.1
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling unicode-segmentation v1.6.0
[INFO] [stderr]    Compiling derive_builder v0.9.0
[INFO] [stderr]    Compiling num-traits v0.2.10
[INFO] [stderr]    Compiling num-integer v0.1.41
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]    Compiling dirs-sys v0.3.4
[INFO] [stderr]    Compiling time v0.1.42
[INFO] [stderr]    Compiling atty v0.2.13
[INFO] [stderr]    Compiling clap v2.33.0
[INFO] [stderr]    Compiling dirs v2.0.2
[INFO] [stderr]    Compiling term v0.6.1
[INFO] [stderr]    Compiling chrono v0.4.10
[INFO] [stderr]    Compiling simplelog v0.7.4
[INFO] [stderr]    Compiling darling_core v0.10.2
[INFO] [stderr]    Compiling syn-mid v0.4.0
[INFO] [stderr]    Compiling rustversion v1.0.1
[INFO] [stderr]    Compiling darling_macro v0.10.2
[INFO] [stderr]    Compiling proc-macro-error v0.4.4
[INFO] [stderr]    Compiling proc-macro-error-attr v0.4.3
[INFO] [stderr]    Compiling darling v0.10.2
[INFO] [stderr]    Compiling derive_builder_core v0.9.0
[INFO] [stderr]    Compiling structopt-derive v0.4.0
[INFO] [stderr]    Compiling structopt v0.3.7
[INFO] [stderr]    Compiling zfs-autosnaprs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `dry_run`
[INFO] [stdout]   --> src/main.rs:47:5
[INFO] [stdout]    |
[INFO] [stdout] 47 |     pub dry_run: bool,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] note: `Opt` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   --> src/main.rs:18:10
[INFO] [stdout]    |
[INFO] [stdout] 18 | #[derive(Debug, StructOpt)]
[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: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 17.81s
[INFO] running `Command { std: "docker" "inspect" "b1800fffeb39289c29f1543b55cb77984277a3a69c50a2b17547a9587dcd1c55", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b1800fffeb39289c29f1543b55cb77984277a3a69c50a2b17547a9587dcd1c55", kill_on_drop: false }`
[INFO] [stdout] b1800fffeb39289c29f1543b55cb77984277a3a69c50a2b17547a9587dcd1c55
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5c49dace9ef17d80db38e9726a67631253ebac72704353139b6dec850dd9c604
[INFO] running `Command { std: "docker" "start" "-a" "5c49dace9ef17d80db38e9726a67631253ebac72704353139b6dec850dd9c604", kill_on_drop: false }`
[INFO] [stderr]    Compiling zfs-autosnaprs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `fs`
[INFO] [stdout]    --> src/zfs.rs:252:10
[INFO] [stdout]     |
[INFO] [stdout] 252 |     let (fs, size) = zfs.find_expendable_snapshots(&fs_orig, &fs_snaps);
[INFO] [stdout]     |          ^^ help: if this is intentional, prefix it with an underscore: `_fs`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `dry_run`
[INFO] [stdout]   --> src/main.rs:47:5
[INFO] [stdout]    |
[INFO] [stdout] 47 |     pub dry_run: bool,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] note: `Opt` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   --> src/main.rs:18:10
[INFO] [stdout]    |
[INFO] [stdout] 18 | #[derive(Debug, StructOpt)]
[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: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.97s
[INFO] [stderr]   Executable unittests src/main.rs (/opt/rustwide/target/debug/deps/zfs_autosnaprs-70247ff35d1659cf)
[INFO] running `Command { std: "docker" "inspect" "5c49dace9ef17d80db38e9726a67631253ebac72704353139b6dec850dd9c604", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5c49dace9ef17d80db38e9726a67631253ebac72704353139b6dec850dd9c604", kill_on_drop: false }`
[INFO] [stdout] 5c49dace9ef17d80db38e9726a67631253ebac72704353139b6dec850dd9c604
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 06e4e4bd27504e09f8a4b713ceeb61628c86eb5c88d08bfe76fae512fec6258e
[INFO] running `Command { std: "docker" "start" "-a" "06e4e4bd27504e09f8a4b713ceeb61628c86eb5c88d08bfe76fae512fec6258e", kill_on_drop: false }`
[INFO] [stderr] warning: unused variable: `fs`
[INFO] [stderr]    --> src/zfs.rs:252:10
[INFO] [stderr]     |
[INFO] [stderr] 252 |     let (fs, size) = zfs.find_expendable_snapshots(&fs_orig, &fs_snaps);
[INFO] [stderr]     |          ^^ help: if this is intentional, prefix it with an underscore: `_fs`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `dry_run`
[INFO] [stderr]   --> src/main.rs:47:5
[INFO] [stderr]    |
[INFO] [stderr] 47 |     pub dry_run: bool,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] note: `Opt` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]   --> src/main.rs:18:10
[INFO] [stderr]    |
[INFO] [stderr] 18 | #[derive(Debug, StructOpt)]
[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: `zfs-autosnaprs` (bin "zfs-autosnaprs" test) generated 2 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/zfs_autosnaprs-70247ff35d1659cf)
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test zfs::test_str2fs ... ok
[INFO] [stdout] test zfs::test_zfs_find_expendable_snapshots ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "06e4e4bd27504e09f8a4b713ceeb61628c86eb5c88d08bfe76fae512fec6258e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "06e4e4bd27504e09f8a4b713ceeb61628c86eb5c88d08bfe76fae512fec6258e", kill_on_drop: false }`
[INFO] [stdout] 06e4e4bd27504e09f8a4b713ceeb61628c86eb5c88d08bfe76fae512fec6258e