[INFO] fetching crate sccmod 0.6.4...
[INFO] checking sccmod-0.6.4 against master#bca37a20bd376ce3fd138e7cdee7fe704e0f8814 for pr-139493-3
[INFO] extracting crate sccmod 0.6.4 into /workspace/builds/worker-4-tc1/source
[INFO] started tweaking crates.io crate sccmod 0.6.4
[INFO] finished tweaking crates.io crate sccmod 0.6.4
[INFO] tweaked toml for crates.io crate sccmod 0.6.4 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate sccmod 0.6.4 on toolchain bca37a20bd376ce3fd138e7cdee7fe704e0f8814
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+bca37a20bd376ce3fd138e7cdee7fe704e0f8814" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate sccmod 0.6.4 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" "+bca37a20bd376ce3fd138e7cdee7fe704e0f8814" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+bca37a20bd376ce3fd138e7cdee7fe704e0f8814" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d8367b66a8058d4978fafca0e94884d9ec8b4ed859d3b6bf19348dc20c5b3738
[INFO] running `Command { std: "docker" "start" "-a" "d8367b66a8058d4978fafca0e94884d9ec8b4ed859d3b6bf19348dc20c5b3738", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d8367b66a8058d4978fafca0e94884d9ec8b4ed859d3b6bf19348dc20c5b3738", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d8367b66a8058d4978fafca0e94884d9ec8b4ed859d3b6bf19348dc20c5b3738", kill_on_drop: false }`
[INFO] [stdout] d8367b66a8058d4978fafca0e94884d9ec8b4ed859d3b6bf19348dc20c5b3738
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+bca37a20bd376ce3fd138e7cdee7fe704e0f8814" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 28354ed7c13b926d874f6b6388944d3b55e9f0e3740f4d4dcee4bd36cbba4370
[INFO] running `Command { std: "docker" "start" "-a" "28354ed7c13b926d874f6b6388944d3b55e9f0e3740f4d4dcee4bd36cbba4370", kill_on_drop: false }`
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[INFO] [stderr]    Compiling libc v0.2.155
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[INFO] [stderr]    Compiling serde v1.0.203
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[INFO] [stderr]     Checking sccmod v0.6.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `process::Command`
[INFO] [stdout]  --> src/builders/make.rs:1:33
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{fs, path, path::Path, process::Command};
[INFO] [stdout]   |                                 ^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `cli::child_logger`
[INFO] [stdout]  --> src/builders/make.rs:6:43
[INFO] [stdout]   |
[INFO] [stdout] 6 |     builders::builder_trait::BuilderImpl, cli::child_logger, config,
[INFO] [stdout]   |                                           ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::module::Module`
[INFO] [stdout]  --> src/config.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use crate::module::Module;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `fs_try_exists` has been stable since 1.81.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/lib.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(fs_try_exists)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `round_char_boundary` has been stable since 1.91.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/lib.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(round_char_boundary)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `process::Command`
[INFO] [stdout]  --> src/builders/make.rs:1:33
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{fs, path, path::Path, process::Command};
[INFO] [stdout]   |                                 ^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `cli::child_logger`
[INFO] [stdout]  --> src/builders/make.rs:6:43
[INFO] [stdout]   |
[INFO] [stdout] 6 |     builders::builder_trait::BuilderImpl, cli::child_logger, config,
[INFO] [stdout]   |                                           ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::module::Module`
[INFO] [stdout]  --> src/config.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use crate::module::Module;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `fs_try_exists` has been stable since 1.81.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/lib.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(fs_try_exists)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `round_char_boundary` has been stable since 1.91.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/lib.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(round_char_boundary)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/module.rs:306:17
[INFO] [stdout]     |
[INFO] [stdout] 306 |             let mut dependencies: Vec<Dependency> = dependencies.iter().map(|dep| {
[INFO] [stdout]     |                 ----^^^^^^^^^^^^
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `sha256` is never read
[INFO] [stdout]   --> src/downloaders.rs:48:5
[INFO] [stdout]    |
[INFO] [stdout] 46 | pub struct Curl {
[INFO] [stdout]    |            ---- field in this struct
[INFO] [stdout] 47 |     url: String,
[INFO] [stdout] 48 |     sha256: Option<String>,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Curl` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/module.rs:306:17
[INFO] [stdout]     |
[INFO] [stdout] 306 |             let mut dependencies: Vec<Dependency> = dependencies.iter().map(|dep| {
[INFO] [stdout]     |                 ----^^^^^^^^^^^^
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `sha256` is never read
[INFO] [stdout]   --> src/downloaders.rs:48:5
[INFO] [stdout]    |
[INFO] [stdout] 46 | pub struct Curl {
[INFO] [stdout]    |            ---- field in this struct
[INFO] [stdout] 47 |     url: String,
[INFO] [stdout] 48 |     sha256: Option<String>,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Curl` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[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 16.21s
[INFO] running `Command { std: "docker" "inspect" "28354ed7c13b926d874f6b6388944d3b55e9f0e3740f4d4dcee4bd36cbba4370", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "28354ed7c13b926d874f6b6388944d3b55e9f0e3740f4d4dcee4bd36cbba4370", kill_on_drop: false }`
[INFO] [stdout] 28354ed7c13b926d874f6b6388944d3b55e9f0e3740f4d4dcee4bd36cbba4370