[INFO] fetching crate tkm 0.8.5...
[INFO] checking tkm-0.8.5 against try#998b6603a58e47f42ccce7a67943234e96b6839e for pr-143170
[INFO] extracting crate tkm 0.8.5 into /workspace/builds/worker-6-tc2/source
[INFO] started tweaking crates.io crate tkm 0.8.5
[INFO] finished tweaking crates.io crate tkm 0.8.5
[INFO] tweaked toml for crates.io crate tkm 0.8.5 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate tkm 0.8.5 on toolchain 998b6603a58e47f42ccce7a67943234e96b6839e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "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" "+998b6603a58e47f42ccce7a67943234e96b6839e" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 32 packages to latest compatible versions
[INFO] [stderr]       Adding nom v4.2.3 (available: v8.0.0)
[INFO] [stderr]       Adding sysinfo v0.8.6 (available: v0.35.2)
[INFO] [stderr]       Adding termion v1.5.6 (available: v4.0.5)
[INFO] [stderr]       Adding tui v0.4.0 (available: v0.19.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "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-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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" "+998b6603a58e47f42ccce7a67943234e96b6839e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 66d4be97268ced9ea94d626c6a45f58f8686027e1f66e2d8ffc99561ac18da79
[INFO] running `Command { std: "docker" "start" "-a" "66d4be97268ced9ea94d626c6a45f58f8686027e1f66e2d8ffc99561ac18da79", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "66d4be97268ced9ea94d626c6a45f58f8686027e1f66e2d8ffc99561ac18da79", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "66d4be97268ced9ea94d626c6a45f58f8686027e1f66e2d8ffc99561ac18da79", kill_on_drop: false }`
[INFO] [stdout] 66d4be97268ced9ea94d626c6a45f58f8686027e1f66e2d8ffc99561ac18da79
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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" "+998b6603a58e47f42ccce7a67943234e96b6839e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9fc7ee4a1e9430069db68d1fbe4a48fb32305bcefb8d3d2c72790e72bb384a55
[INFO] running `Command { std: "docker" "start" "-a" "9fc7ee4a1e9430069db68d1fbe4a48fb32305bcefb8d3d2c72790e72bb384a55", kill_on_drop: false }`
[INFO] [stderr]    Compiling crossbeam-utils v0.8.21
[INFO] [stderr]    Compiling rayon-core v1.12.1
[INFO] [stderr]     Checking either v1.15.0
[INFO] [stderr]    Compiling version_check v0.1.5
[INFO] [stderr]     Checking numtoa v0.1.0
[INFO] [stderr]    Compiling sysinfo v0.8.6
[INFO] [stderr]     Checking unicode-width v0.2.1
[INFO] [stderr]     Checking unicode-width v0.1.14
[INFO] [stderr]     Checking memchr v2.7.5
[INFO] [stderr]     Checking unicode-segmentation v1.12.0
[INFO] [stderr]     Checking cassowary v0.3.0
[INFO] [stderr]     Checking log v0.4.27
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking termion v1.5.6
[INFO] [stderr]    Compiling nom v4.2.3
[INFO] [stderr]     Checking getopts v0.2.23
[INFO] [stderr]     Checking itertools v0.8.2
[INFO] [stderr]     Checking pretty-bytes v0.2.2
[INFO] [stderr]     Checking crossbeam-epoch v0.9.18
[INFO] [stderr]     Checking crossbeam-deque v0.8.6
[INFO] [stderr]     Checking tui v0.4.0
[INFO] [stderr]     Checking rayon v1.10.0
[INFO] [stderr]     Checking tkm v0.8.5 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `mode` is never read
[INFO] [stdout]  --> src/app.rs:8:9
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub struct App {
[INFO] [stdout]   |            --- field in this struct
[INFO] [stdout] 8 |     pub mode: Mode,
[INFO] [stdout]   |         ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]   --> src/cmd/mod.rs:21:17
[INFO] [stdout]    |
[INFO] [stdout] 21 |     pub fn exec(&self, app: &mut crate::app::App) -> Result<(), CmdError> {
[INFO] [stdout]    |                 ^^^^^ this lifetime flows to the output         -------- the lifetime gets resolved as `'_`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]    |
[INFO] [stdout] 21 |     pub fn exec(&self, app: &mut crate::app::App) -> Result<(), CmdError<'_>> {
[INFO] [stdout]    |                                                                         ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `mode` is never read
[INFO] [stdout]  --> src/app.rs:8:9
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub struct App {
[INFO] [stdout]   |            --- field in this struct
[INFO] [stdout] 8 |     pub mode: Mode,
[INFO] [stdout]   |         ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]   --> src/cmd/mod.rs:21:17
[INFO] [stdout]    |
[INFO] [stdout] 21 |     pub fn exec(&self, app: &mut crate::app::App) -> Result<(), CmdError> {
[INFO] [stdout]    |                 ^^^^^ this lifetime flows to the output         -------- the lifetime gets resolved as `'_`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]    |
[INFO] [stdout] 21 |     pub fn exec(&self, app: &mut crate::app::App) -> Result<(), CmdError<'_>> {
[INFO] [stdout]    |                                                                         ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.18s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: nom v4.2.3
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 2`
[INFO] running `Command { std: "docker" "inspect" "9fc7ee4a1e9430069db68d1fbe4a48fb32305bcefb8d3d2c72790e72bb384a55", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9fc7ee4a1e9430069db68d1fbe4a48fb32305bcefb8d3d2c72790e72bb384a55", kill_on_drop: false }`
[INFO] [stdout] 9fc7ee4a1e9430069db68d1fbe4a48fb32305bcefb8d3d2c72790e72bb384a55