[INFO] fetching crate du2 0.2.1... [INFO] checking du2-0.2.1 against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never [INFO] extracting crate du2 0.2.1 into /workspace/builds/worker-3-tc1/source [INFO] validating manifest of crates.io crate du2 0.2.1 on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate du2 0.2.1 [INFO] finished tweaking crates.io crate du2 0.2.1 [INFO] tweaked toml for crates.io crate du2 0.2.1 written to /workspace/builds/worker-3-tc1/source/Cargo.toml [INFO] crate crates.io crate du2 0.2.1 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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--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] Blocking waiting for file lock on package cache [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded proc-macro-error-attr v1.0.3 [INFO] [stderr] Downloaded atty v0.2.13 [INFO] [stderr] Downloaded proc-macro-error v1.0.3 [INFO] [stderr] Downloaded cpu-time v1.0.0 [INFO] [stderr] Downloaded itoa v0.4.6 [INFO] [stderr] Downloaded anyhow v1.0.31 [INFO] [stderr] Downloaded serde v1.0.114 [INFO] [stderr] Downloaded bstr v0.2.13 [INFO] [stderr] Downloaded libc v0.2.65 [INFO] [stderr] Downloaded clap v2.33.1 [INFO] [stderr] Downloaded syn v1.0.33 [INFO] [stderr] Downloaded csv v1.1.3 [INFO] [stderr] Downloaded num-format v0.4.0 [INFO] [stderr] Downloaded aho-corasick v0.7.6 [INFO] [stderr] Downloaded structopt v0.3.15 [INFO] [stderr] Downloaded hermit-abi v0.1.14 [INFO] [stderr] Downloaded memchr v2.2.1 [INFO] [stderr] Downloaded unicode-width v0.1.6 [INFO] [stderr] Downloaded proc-macro2 v1.0.18 [INFO] [stderr] Downloaded structopt-derive v0.4.8 [INFO] [stderr] Downloaded users v0.10.0 [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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 8c2ca1b12291cf983f93bb659fffc7868f70b1ca04e3aa8951f19cd0e260ab5e [INFO] running `Command { std: "docker" "start" "-a" "8c2ca1b12291cf983f93bb659fffc7868f70b1ca04e3aa8951f19cd0e260ab5e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "8c2ca1b12291cf983f93bb659fffc7868f70b1ca04e3aa8951f19cd0e260ab5e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "8c2ca1b12291cf983f93bb659fffc7868f70b1ca04e3aa8951f19cd0e260ab5e", kill_on_drop: false }` [INFO] [stdout] 8c2ca1b12291cf983f93bb659fffc7868f70b1ca04e3aa8951f19cd0e260ab5e [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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 71bdefb45a53bc4bda382e9831c4d6c74057067530c7298a88a691262c6bfe50 [INFO] running `Command { std: "docker" "start" "-a" "71bdefb45a53bc4bda382e9831c4d6c74057067530c7298a88a691262c6bfe50", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.18 [INFO] [stderr] Compiling unicode-xid v0.2.1 [INFO] [stderr] Compiling version_check v0.9.2 [INFO] [stderr] Compiling libc v0.2.65 [INFO] [stderr] Compiling syn v1.0.33 [INFO] [stderr] Compiling memchr v2.2.1 [INFO] [stderr] Compiling byteorder v1.3.4 [INFO] [stderr] Compiling serde v1.0.114 [INFO] [stderr] Compiling bitflags v1.2.1 [INFO] [stderr] Checking unicode-width v0.1.6 [INFO] [stderr] Compiling ryu v1.0.5 [INFO] [stderr] Compiling unicode-segmentation v1.6.0 [INFO] [stderr] Compiling log v0.4.8 [INFO] [stderr] Compiling arrayvec v0.4.12 [INFO] [stderr] Checking itoa v0.4.6 [INFO] [stderr] Checking strsim v0.8.0 [INFO] [stderr] Checking ansi_term v0.11.0 [INFO] [stderr] Compiling anyhow v1.0.31 [INFO] [stderr] Checking textwrap v0.11.0 [INFO] [stderr] Checking vec_map v0.8.2 [INFO] [stderr] Checking nodrop v0.1.14 [INFO] [stderr] Checking regex-syntax v0.6.18 [INFO] [stderr] Compiling heck v0.3.1 [INFO] [stderr] Compiling proc-macro-error-attr v1.0.3 [INFO] [stderr] Compiling proc-macro-error v1.0.3 [INFO] [stderr] Checking atty v0.2.13 [INFO] [stderr] Checking cpu-time v1.0.0 [INFO] [stderr] Checking users v0.10.0 [INFO] [stderr] Checking num_cpus v1.13.0 [INFO] [stderr] Checking regex-automata v0.1.9 [INFO] [stderr] Checking clap v2.33.1 [INFO] [stderr] Checking aho-corasick v0.7.6 [INFO] [stderr] Checking csv-core v0.1.10 [INFO] [stderr] Checking num-format v0.4.0 [INFO] [stderr] Compiling quote v1.0.7 [INFO] [stderr] Checking regex v1.3.9 [INFO] [stderr] Compiling syn-mid v0.5.0 [INFO] [stderr] Checking bstr v0.2.13 [INFO] [stderr] Checking csv v1.1.3 [INFO] [stderr] Compiling structopt-derive v0.4.8 [INFO] [stderr] Checking structopt v0.3.15 [INFO] [stderr] Checking du2 v0.2.1 (/opt/rustwide/workdir) [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:348:21 [INFO] [stdout] | [INFO] [stdout] 348 | let mut dstats: &mut DirStats = if top.dtree.contains_key(parent) { [INFO] [stdout] | ----^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:404:25 [INFO] [stdout] | [INFO] [stdout] 404 | let mut upstats = if top.dtree.contains_key(nextpar) { [INFO] [stdout] | ----^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `UserUsage` is never constructed [INFO] [stdout] --> src/main.rs:294:8 [INFO] [stdout] | [INFO] [stdout] 294 | struct UserUsage { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `long_help` is never read [INFO] [stdout] --> src/cli.rs:123:9 [INFO] [stdout] | [INFO] [stdout] 46 | pub struct ParLsCfg { [INFO] [stdout] | -------- field in this struct [INFO] [stdout] ... [INFO] [stdout] 123 | pub long_help: bool [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `ParLsCfg` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:348:21 [INFO] [stdout] | [INFO] [stdout] 348 | let mut dstats: &mut DirStats = if top.dtree.contains_key(parent) { [INFO] [stdout] | ----^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:404:25 [INFO] [stdout] | [INFO] [stdout] 404 | let mut upstats = if top.dtree.contains_key(nextpar) { [INFO] [stdout] | ----^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `UserUsage` is never constructed [INFO] [stdout] --> src/main.rs:294:8 [INFO] [stdout] | [INFO] [stdout] 294 | struct UserUsage { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `long_help` is never read [INFO] [stdout] --> src/cli.rs:123:9 [INFO] [stdout] | [INFO] [stdout] 46 | pub struct ParLsCfg { [INFO] [stdout] | -------- field in this struct [INFO] [stdout] ... [INFO] [stdout] 123 | pub long_help: bool [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `ParLsCfg` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 13.01s [INFO] running `Command { std: "docker" "inspect" "71bdefb45a53bc4bda382e9831c4d6c74057067530c7298a88a691262c6bfe50", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "71bdefb45a53bc4bda382e9831c4d6c74057067530c7298a88a691262c6bfe50", kill_on_drop: false }` [INFO] [stdout] 71bdefb45a53bc4bda382e9831c4d6c74057067530c7298a88a691262c6bfe50