[INFO] cloning repository https://github.com/kirillrdy/zfs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/kirillrdy/zfs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkirillrdy%2Fzfs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkirillrdy%2Fzfs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 938f1316a9a974cb0d3b67a0caaa78c36168ec3f
[INFO] checking kirillrdy/zfs against try#8d46be77cd48fdbcced888d027457e2c9cf2aa16 for pr-142723
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkirillrdy%2Fzfs" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/kirillrdy/zfs on toolchain 8d46be77cd48fdbcced888d027457e2c9cf2aa16
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8d46be77cd48fdbcced888d027457e2c9cf2aa16" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/kirillrdy/zfs
[INFO] finished tweaking git repo https://github.com/kirillrdy/zfs
[INFO] tweaked toml for git repo https://github.com/kirillrdy/zfs written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/kirillrdy/zfs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8d46be77cd48fdbcced888d027457e2c9cf2aa16" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8d46be77cd48fdbcced888d027457e2c9cf2aa16" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2b276f7860f90d94ab0be73616aad304e0a3e09530f22d83c37cd0029149a12d
[INFO] running `Command { std: "docker" "start" "-a" "2b276f7860f90d94ab0be73616aad304e0a3e09530f22d83c37cd0029149a12d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2b276f7860f90d94ab0be73616aad304e0a3e09530f22d83c37cd0029149a12d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2b276f7860f90d94ab0be73616aad304e0a3e09530f22d83c37cd0029149a12d", kill_on_drop: false }`
[INFO] [stdout] 2b276f7860f90d94ab0be73616aad304e0a3e09530f22d83c37cd0029149a12d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8d46be77cd48fdbcced888d027457e2c9cf2aa16" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6a8e1ef62127d88c963e2eb6ebe38ab1d33b63f6608259d33aeffb4f30e02a6b
[INFO] running `Command { std: "docker" "start" "-a" "6a8e1ef62127d88c963e2eb6ebe38ab1d33b63f6608259d33aeffb4f30e02a6b", kill_on_drop: false }`
[INFO] [stderr]     Checking zfs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: fields `name`, `used`, `available`, `referred`, and `mountpoint` are never read
[INFO] [stdout]  --> src/datasets.rs:5:9
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub struct Dataset {
[INFO] [stdout]   |            ------- fields in this struct
[INFO] [stdout] 5 |     pub name: String,
[INFO] [stdout]   |         ^^^^
[INFO] [stdout] 6 |     pub used: String,
[INFO] [stdout]   |         ^^^^
[INFO] [stdout] 7 |     pub available: String,
[INFO] [stdout]   |         ^^^^^^^^^
[INFO] [stdout] 8 |     pub referred: String,
[INFO] [stdout]   |         ^^^^^^^^
[INFO] [stdout] 9 |     pub mountpoint: String,
[INFO] [stdout]   |         ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Dataset` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `name`, `used`, `available`, `referred`, and `mountpoint` are never read
[INFO] [stdout]  --> src/datasets.rs:5:9
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub struct Dataset {
[INFO] [stdout]   |            ------- fields in this struct
[INFO] [stdout] 5 |     pub name: String,
[INFO] [stdout]   |         ^^^^
[INFO] [stdout] 6 |     pub used: String,
[INFO] [stdout]   |         ^^^^
[INFO] [stdout] 7 |     pub available: String,
[INFO] [stdout]   |         ^^^^^^^^^
[INFO] [stdout] 8 |     pub referred: String,
[INFO] [stdout]   |         ^^^^^^^^
[INFO] [stdout] 9 |     pub mountpoint: String,
[INFO] [stdout]   |         ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Dataset` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.09s
[INFO] running `Command { std: "docker" "inspect" "6a8e1ef62127d88c963e2eb6ebe38ab1d33b63f6608259d33aeffb4f30e02a6b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6a8e1ef62127d88c963e2eb6ebe38ab1d33b63f6608259d33aeffb4f30e02a6b", kill_on_drop: false }`
[INFO] [stdout] 6a8e1ef62127d88c963e2eb6ebe38ab1d33b63f6608259d33aeffb4f30e02a6b