[INFO] fetching crate ctv 0.3.3...
[INFO] checking ctv-0.3.3 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate ctv 0.3.3 into /workspace/builds/worker-2-tc2/source
[INFO] started tweaking crates.io crate ctv 0.3.3
[INFO] finished tweaking crates.io crate ctv 0.3.3
[INFO] tweaked toml for crates.io crate ctv 0.3.3 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate ctv 0.3.3 on toolchain 4f260f0f20b3133d20cfb50353c0221943af5796
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate ctv 0.3.3 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" "+4f260f0f20b3133d20cfb50353c0221943af5796" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8bfc2f2a77b33747f13d13f8ee0c4523741d5a7a6e77782dca1fa8e235a9af4e
[INFO] running `Command { std: "docker" "start" "-a" "8bfc2f2a77b33747f13d13f8ee0c4523741d5a7a6e77782dca1fa8e235a9af4e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8bfc2f2a77b33747f13d13f8ee0c4523741d5a7a6e77782dca1fa8e235a9af4e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8bfc2f2a77b33747f13d13f8ee0c4523741d5a7a6e77782dca1fa8e235a9af4e", kill_on_drop: false }`
[INFO] [stdout] 8bfc2f2a77b33747f13d13f8ee0c4523741d5a7a6e77782dca1fa8e235a9af4e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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 -Dunmustuse_in_always_ok" "-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 53608555a6c585cdb22948c8778ea7736dbc3d1b3b0de8720a8e0b6d8582573e
[INFO] running `Command { std: "docker" "start" "-a" "53608555a6c585cdb22948c8778ea7736dbc3d1b3b0de8720a8e0b6d8582573e", kill_on_drop: false }`
[INFO] [stderr]    Compiling version_check v0.9.3
[INFO] [stderr]    Compiling proc-macro2 v1.0.30
[INFO] [stderr]    Compiling syn v1.0.80
[INFO] [stderr]    Compiling libc v0.2.103
[INFO] [stderr]    Compiling serde_derive v1.0.133
[INFO] [stderr]    Compiling yansi v0.5.0
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling serde v1.0.133
[INFO] [stderr]    Compiling indexmap v1.8.0
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro2-diagnostics v0.9.1
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling uncased v0.9.6
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling figment v0.10.6
[INFO] [stderr]     Checking inlinable_string v0.1.15
[INFO] [stderr]    Compiling anyhow v1.0.53
[INFO] [stderr]     Checking textwrap v0.14.2
[INFO] [stderr]     Checking humansize v1.1.1
[INFO] [stderr]    Compiling quote v1.0.10
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking dirs-sys v0.3.6
[INFO] [stderr]     Checking os_str_bytes v6.0.0
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]     Checking colored v2.0.0
[INFO] [stderr]     Checking dirs v4.0.0
[INFO] [stderr]     Checking filetime v0.2.15
[INFO] [stderr]     Checking users v0.11.0
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]    Compiling pear_codegen v0.2.3
[INFO] [stderr]    Compiling clap_derive v3.0.14
[INFO] [stderr]     Checking pear v0.2.3
[INFO] [stderr]     Checking clap v3.0.14
[INFO] [stderr]     Checking toml v0.5.8
[INFO] [stderr]     Checking ctv v0.3.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `group` is never read
[INFO] [stdout]   --> src/protocols/file.rs:11:9
[INFO] [stdout]    |
[INFO] [stdout]  8 | pub struct File<'a> {
[INFO] [stdout]    |            ---- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 11 |     pub group: String,
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `ctv` (bin "ctv") due to 1 previous error; 1 warning emitted
[INFO] [stdout] error: this type will no longer be must used: Result<PathBuf, Infallible>
[INFO] [stdout]  --> src/args.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | /     #[clap(default_value = ".")]
[INFO] [stdout] 8 | |     pub dir: PathBuf,
[INFO] [stdout]   | |____________________^
[INFO] [stdout]   |
[INFO] [stdout]   = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: field `group` is never read
[INFO] [stdout]   --> src/protocols/file.rs:11:9
[INFO] [stdout]    |
[INFO] [stdout]  8 | pub struct File<'a> {
[INFO] [stdout]    |            ---- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 11 |     pub group: String,
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<PathBuf, Infallible>
[INFO] [stdout]  --> src/args.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | /     #[clap(default_value = ".")]
[INFO] [stdout] 8 | |     pub dir: PathBuf,
[INFO] [stdout]   | |____________________^
[INFO] [stdout]   |
[INFO] [stdout]   = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `ctv` (bin "ctv" test) due to 1 previous error; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "53608555a6c585cdb22948c8778ea7736dbc3d1b3b0de8720a8e0b6d8582573e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "53608555a6c585cdb22948c8778ea7736dbc3d1b3b0de8720a8e0b6d8582573e", kill_on_drop: false }`
[INFO] [stdout] 53608555a6c585cdb22948c8778ea7736dbc3d1b3b0de8720a8e0b6d8582573e