[INFO] fetching crate tkm 0.8.5...
[INFO] checking tkm-0.8.5 against master#40daf23eeb711dadf140b2536e67e3ff4c999196 for pr-142287
[INFO] extracting crate tkm 0.8.5 into /workspace/builds/worker-3-tc1/source
[INFO] validating manifest of crates.io crate tkm 0.8.5 on toolchain 40daf23eeb711dadf140b2536e67e3ff4c999196
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+40daf23eeb711dadf140b2536e67e3ff4c999196" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[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-3-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+40daf23eeb711dadf140b2536e67e3ff4c999196" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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" "+40daf23eeb711dadf140b2536e67e3ff4c999196" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded pretty-bytes v0.2.2
[INFO] [stderr]   Downloaded tui v0.4.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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:eea15d5475069c3ef791f10c2c6b5af2ee421ef2da1e680ecce1cba46243983b" "/opt/rustwide/cargo-home/bin/cargo" "+40daf23eeb711dadf140b2536e67e3ff4c999196" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 23db85a79f67f86cc35b57417e309b8cbd6ca2adfbf2237bc782fedf48f38c81
[INFO] running `Command { std: "docker" "start" "-a" "23db85a79f67f86cc35b57417e309b8cbd6ca2adfbf2237bc782fedf48f38c81", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "23db85a79f67f86cc35b57417e309b8cbd6ca2adfbf2237bc782fedf48f38c81", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "23db85a79f67f86cc35b57417e309b8cbd6ca2adfbf2237bc782fedf48f38c81", kill_on_drop: false }`
[INFO] [stdout] 23db85a79f67f86cc35b57417e309b8cbd6ca2adfbf2237bc782fedf48f38c81
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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:eea15d5475069c3ef791f10c2c6b5af2ee421ef2da1e680ecce1cba46243983b" "/opt/rustwide/cargo-home/bin/cargo" "+40daf23eeb711dadf140b2536e67e3ff4c999196" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 88a3908a69c6c16423d5b59e9c3628b7f08576999009b74af21d55040b5de2dc
[INFO] running `Command { std: "docker" "start" "-a" "88a3908a69c6c16423d5b59e9c3628b7f08576999009b74af21d55040b5de2dc", kill_on_drop: false }`
[INFO] [stderr]    Compiling crossbeam-utils v0.8.21
[INFO] [stderr]    Compiling libc v0.2.172
[INFO] [stderr]     Checking either v1.15.0
[INFO] [stderr]    Compiling rayon-core v1.12.1
[INFO] [stderr]    Compiling version_check v0.1.5
[INFO] [stderr]    Compiling doc-comment v0.3.3
[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 bitflags v1.3.2
[INFO] [stderr]     Checking cassowary v0.3.0
[INFO] [stderr]     Checking memchr v2.7.4
[INFO] [stderr]     Checking log v0.4.27
[INFO] [stderr]     Checking unicode-segmentation v1.12.0
[INFO] [stderr]     Checking unicode-width v0.1.14
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling nom v4.2.3
[INFO] [stderr]     Checking itertools v0.8.2
[INFO] [stderr]     Checking getopts v0.2.23
[INFO] [stderr]     Checking crossbeam-epoch v0.9.18
[INFO] [stderr]     Checking crossbeam-deque v0.8.6
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking termion v1.5.6
[INFO] [stderr]     Checking rayon v1.10.0
[INFO] [stderr]     Checking pretty-bytes v0.2.2
[INFO] [stderr]     Checking tui v0.4.0
[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 8.05s
[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 1`
[INFO] running `Command { std: "docker" "inspect" "88a3908a69c6c16423d5b59e9c3628b7f08576999009b74af21d55040b5de2dc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "88a3908a69c6c16423d5b59e9c3628b7f08576999009b74af21d55040b5de2dc", kill_on_drop: false }`
[INFO] [stdout] 88a3908a69c6c16423d5b59e9c3628b7f08576999009b74af21d55040b5de2dc