[INFO] cloning repository https://github.com/jenslar/textgrid-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jenslar/textgrid-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjenslar%2Ftextgrid-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjenslar%2Ftextgrid-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 93155d0d96521507e09e58e4302d0312eb4ccd9b
[INFO] checking jenslar/textgrid-rs against master#fce0e74720d199eb7839fdb51af35ac5226da178 for pr-145262
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjenslar%2Ftextgrid-rs" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/jenslar/textgrid-rs
[INFO] finished tweaking git repo https://github.com/jenslar/textgrid-rs
[INFO] tweaked toml for git repo https://github.com/jenslar/textgrid-rs written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/jenslar/textgrid-rs on toolchain fce0e74720d199eb7839fdb51af35ac5226da178
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+fce0e74720d199eb7839fdb51af35ac5226da178" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/jenslar/textgrid-rs 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" "+fce0e74720d199eb7839fdb51af35ac5226da178" "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-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+fce0e74720d199eb7839fdb51af35ac5226da178" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1accee60d78e21cc355f2c8599c6df2e68064278c0381a656dcc997f1db07761
[INFO] running `Command { std: "docker" "start" "-a" "1accee60d78e21cc355f2c8599c6df2e68064278c0381a656dcc997f1db07761", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1accee60d78e21cc355f2c8599c6df2e68064278c0381a656dcc997f1db07761", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1accee60d78e21cc355f2c8599c6df2e68064278c0381a656dcc997f1db07761", kill_on_drop: false }`
[INFO] [stdout] 1accee60d78e21cc355f2c8599c6df2e68064278c0381a656dcc997f1db07761
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+fce0e74720d199eb7839fdb51af35ac5226da178" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b79986e44b19349241524560e7e3c11c66c0f12c19c28016aa9e98c94934b880
[INFO] running `Command { std: "docker" "start" "-a" "b79986e44b19349241524560e7e3c11c66c0f12c19c28016aa9e98c94934b880", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.88
[INFO] [stderr]    Compiling unicode-ident v1.0.12
[INFO] [stderr]    Compiling beef v0.5.2
[INFO] [stderr]    Compiling regex-syntax v0.8.5
[INFO] [stderr]    Compiling fnv v1.0.7
[INFO] [stderr]    Compiling lazy_static v1.5.0
[INFO] [stderr]    Compiling serde v1.0.210
[INFO] [stderr]    Compiling quote v1.0.37
[INFO] [stderr]    Compiling syn v2.0.79
[INFO] [stderr]    Compiling logos-codegen v0.14.2
[INFO] [stderr]    Compiling logos-derive v0.14.2
[INFO] [stderr]     Checking logos v0.14.2
[INFO] [stderr]     Checking textgrid-rs v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::error::Error`
[INFO] [stdout]  --> src/textgrid/interval.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::error::Error;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::TgError`
[INFO] [stdout]  --> src/textgrid/interval.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use crate::TgError;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `header::Header`
[INFO] [stdout]  --> src/textgrid/mod.rs:8:9
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub use header::Header;
[INFO] [stdout]   |         ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `tier::Tier`
[INFO] [stdout]   --> src/textgrid/mod.rs:10:9
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub use tier::Tier;
[INFO] [stdout]    |         ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::error::Error`
[INFO] [stdout]  --> src/textgrid/interval.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::error::Error;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `len`
[INFO] [stdout]    --> src/textgrid/textgrid.rs:148:13
[INFO] [stdout]     |
[INFO] [stdout] 148 |         let len = File::open(path)?.read_to_end(&mut buf)?; // a few kb to 20mb, bufread?
[INFO] [stdout]     |             ^^^ help: if this is intentional, prefix it with an underscore: `_len`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::TgError`
[INFO] [stdout]  --> src/textgrid/interval.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use crate::TgError;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `header::Header`
[INFO] [stdout]  --> src/textgrid/mod.rs:8:9
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub use header::Header;
[INFO] [stdout]   |         ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `tier::Tier`
[INFO] [stdout]   --> src/textgrid/mod.rs:10:9
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub use tier::Tier;
[INFO] [stdout]    |         ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Header` is never constructed
[INFO] [stdout]  --> src/textgrid/header.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub struct Header {}
[INFO] [stdout]   |            ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Interval` is never constructed
[INFO] [stdout]   --> src/textgrid/interval.rs:16:12
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub struct Interval {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Tier` is never constructed
[INFO] [stdout]  --> src/textgrid/tier.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub struct Tier {
[INFO] [stdout]   |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `TierClass` is never used
[INFO] [stdout]   --> src/textgrid/tier.rs:14:10
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub enum TierClass {
[INFO] [stdout]    |          ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/textgrid/textgrid.rs:155:18
[INFO] [stdout]     |
[INFO] [stdout] 155 |     pub fn lines(&self) -> std::str::Lines {
[INFO] [stdout]     |                  ^^^^^     --------------- the same lifetime is hidden here
[INFO] [stdout]     |                  |
[INFO] [stdout]     |                  the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 155 |     pub fn lines(&self) -> std::str::Lines<'_> {
[INFO] [stdout]     |                                           ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `len`
[INFO] [stdout]    --> src/textgrid/textgrid.rs:148:13
[INFO] [stdout]     |
[INFO] [stdout] 148 |         let len = File::open(path)?.read_to_end(&mut buf)?; // a few kb to 20mb, bufread?
[INFO] [stdout]     |             ^^^ help: if this is intentional, prefix it with an underscore: `_len`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Header` is never constructed
[INFO] [stdout]  --> src/textgrid/header.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub struct Header {}
[INFO] [stdout]   |            ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Interval` is never constructed
[INFO] [stdout]   --> src/textgrid/interval.rs:16:12
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub struct Interval {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Tier` is never constructed
[INFO] [stdout]  --> src/textgrid/tier.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub struct Tier {
[INFO] [stdout]   |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `TierClass` is never used
[INFO] [stdout]   --> src/textgrid/tier.rs:14:10
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub enum TierClass {
[INFO] [stdout]    |          ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/textgrid/textgrid.rs:155:18
[INFO] [stdout]     |
[INFO] [stdout] 155 |     pub fn lines(&self) -> std::str::Lines {
[INFO] [stdout]     |                  ^^^^^     --------------- the same lifetime is hidden here
[INFO] [stdout]     |                  |
[INFO] [stdout]     |                  the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 155 |     pub fn lines(&self) -> std::str::Lines<'_> {
[INFO] [stdout]     |                                           ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 14.25s
[INFO] running `Command { std: "docker" "inspect" "b79986e44b19349241524560e7e3c11c66c0f12c19c28016aa9e98c94934b880", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b79986e44b19349241524560e7e3c11c66c0f12c19c28016aa9e98c94934b880", kill_on_drop: false }`
[INFO] [stdout] b79986e44b19349241524560e7e3c11c66c0f12c19c28016aa9e98c94934b880
