[INFO] fetching crate zehn 0.1.1...
[INFO] building zehn-0.1.1 against try#4987e9d4227139400384ab59296ffee3b0fb1183 for pr-146237-2
[INFO] extracting crate zehn 0.1.1 into /workspace/builds/worker-1-tc2/source
[INFO] started tweaking crates.io crate zehn 0.1.1
[INFO] finished tweaking crates.io crate zehn 0.1.1
[INFO] tweaked toml for crates.io crate zehn 0.1.1 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate zehn 0.1.1 on toolchain 4987e9d4227139400384ab59296ffee3b0fb1183
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "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" "+4987e9d4227139400384ab59296ffee3b0fb1183" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 3 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] cf6a3a87c5680a3341759419bac8f9716707f52d9930aef218bdd5ca4c7d97f8
[INFO] running `Command { std: "docker" "start" "-a" "cf6a3a87c5680a3341759419bac8f9716707f52d9930aef218bdd5ca4c7d97f8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cf6a3a87c5680a3341759419bac8f9716707f52d9930aef218bdd5ca4c7d97f8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cf6a3a87c5680a3341759419bac8f9716707f52d9930aef218bdd5ca4c7d97f8", kill_on_drop: false }`
[INFO] [stdout] cf6a3a87c5680a3341759419bac8f9716707f52d9930aef218bdd5ca4c7d97f8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 48c7a9741875d18bc7b7d6b280235313ddeed504efbabccc562953d33d3752ac
[INFO] running `Command { std: "docker" "start" "-a" "48c7a9741875d18bc7b7d6b280235313ddeed504efbabccc562953d33d3752ac", kill_on_drop: false }`
[INFO] [stderr]    Compiling zehn v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `name`
[INFO] [stdout]    --> src/io.rs:200:17
[INFO] [stdout]     |
[INFO] [stdout] 200 |             let name = &body.read_cstr()?;
[INFO] [stdout]     |                 ^^^^ help: if this is intentional, prefix it with an underscore: `_name`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `SeekExt` is never used
[INFO] [stdout]   --> src/util.rs:22:11
[INFO] [stdout]    |
[INFO] [stdout] 22 | pub trait SeekExt {
[INFO] [stdout]    |           ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.71s
[INFO] running `Command { std: "docker" "inspect" "48c7a9741875d18bc7b7d6b280235313ddeed504efbabccc562953d33d3752ac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "48c7a9741875d18bc7b7d6b280235313ddeed504efbabccc562953d33d3752ac", kill_on_drop: false }`
[INFO] [stdout] 48c7a9741875d18bc7b7d6b280235313ddeed504efbabccc562953d33d3752ac
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f4c21d89a103a85f49946ee9b65ae7e94390fa8c9a8244cf11e4b65459fe5c73
[INFO] running `Command { std: "docker" "start" "-a" "f4c21d89a103a85f49946ee9b65ae7e94390fa8c9a8244cf11e4b65459fe5c73", kill_on_drop: false }`
[INFO] [stderr]    Compiling zehn v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `name`
[INFO] [stdout]    --> src/io.rs:200:17
[INFO] [stdout]     |
[INFO] [stdout] 200 |             let name = &body.read_cstr()?;
[INFO] [stdout]     |                 ^^^^ help: if this is intentional, prefix it with an underscore: `_name`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `SeekExt` is never used
[INFO] [stdout]   --> src/util.rs:22:11
[INFO] [stdout]    |
[INFO] [stdout] 22 | pub trait SeekExt {
[INFO] [stdout]    |           ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `name`
[INFO] [stdout]    --> src/io.rs:200:17
[INFO] [stdout]     |
[INFO] [stdout] 200 |             let name = &body.read_cstr()?;
[INFO] [stdout]     |                 ^^^^ help: if this is intentional, prefix it with an underscore: `_name`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `SeekExt` is never used
[INFO] [stdout]   --> src/util.rs:22:11
[INFO] [stdout]    |
[INFO] [stdout] 22 | pub trait SeekExt {
[INFO] [stdout]    |           ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1.23s
[INFO] running `Command { std: "docker" "inspect" "f4c21d89a103a85f49946ee9b65ae7e94390fa8c9a8244cf11e4b65459fe5c73", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f4c21d89a103a85f49946ee9b65ae7e94390fa8c9a8244cf11e4b65459fe5c73", kill_on_drop: false }`
[INFO] [stdout] f4c21d89a103a85f49946ee9b65ae7e94390fa8c9a8244cf11e4b65459fe5c73