[INFO] fetching crate mangle 0.0.5...
[INFO] checking mangle-0.0.5 against try#b1f2594eac607c1f051534800237eeedb5590a49 for pr-139493-3
[INFO] extracting crate mangle 0.0.5 into /workspace/builds/worker-1-tc2/source
[INFO] started tweaking crates.io crate mangle 0.0.5
[INFO] finished tweaking crates.io crate mangle 0.0.5
[INFO] tweaked toml for crates.io crate mangle 0.0.5 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate mangle 0.0.5 on toolchain b1f2594eac607c1f051534800237eeedb5590a49
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b1f2594eac607c1f051534800237eeedb5590a49" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate mangle 0.0.5 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" "+b1f2594eac607c1f051534800237eeedb5590a49" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+b1f2594eac607c1f051534800237eeedb5590a49" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b4f74109eb12775b5c25be2afb0cb57752bb4918d838e6d50331efd9cd82c51f
[INFO] running `Command { std: "docker" "start" "-a" "b4f74109eb12775b5c25be2afb0cb57752bb4918d838e6d50331efd9cd82c51f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b4f74109eb12775b5c25be2afb0cb57752bb4918d838e6d50331efd9cd82c51f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b4f74109eb12775b5c25be2afb0cb57752bb4918d838e6d50331efd9cd82c51f", kill_on_drop: false }`
[INFO] [stdout] b4f74109eb12775b5c25be2afb0cb57752bb4918d838e6d50331efd9cd82c51f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+b1f2594eac607c1f051534800237eeedb5590a49" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a0a4a099b75960a4e75ebe1852b9e1f63bc4cd04e1f585b53973475d27f58d72
[INFO] running `Command { std: "docker" "start" "-a" "a0a4a099b75960a4e75ebe1852b9e1f63bc4cd04e1f585b53973475d27f58d72", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.121
[INFO] [stderr]    Compiling io-lifetimes v0.6.1
[INFO] [stderr]    Compiling syn v1.0.91
[INFO] [stderr]    Compiling rustix v0.34.2
[INFO] [stderr]     Checking linux-raw-sys v0.0.42
[INFO] [stderr]    Compiling quote v1.0.17
[INFO] [stderr]     Checking unicode-segmentation v1.9.0
[INFO] [stderr]     Checking float-cmp v0.9.0
[INFO] [stderr]     Checking bstr v0.2.17
[INFO] [stderr]     Checking predicates v2.1.1
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]     Checking dirs-sys-next v0.1.2
[INFO] [stderr]     Checking nix v0.23.1
[INFO] [stderr]     Checking dirs-sys v0.3.7
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking wait-timeout v0.2.0
[INFO] [stderr]     Checking assert_cmd v2.0.4
[INFO] [stderr]     Checking dirs-next v2.0.0
[INFO] [stderr]     Checking dirs v4.0.0
[INFO] [stderr]     Checking fd-lock v3.0.5
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling clap_derive v3.1.7
[INFO] [stderr]     Checking rustyline v9.1.2
[INFO] [stderr]     Checking clap v3.1.8
[INFO] [stderr]     Checking mangle v0.0.5 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `scope` is never read
[INFO] [stdout]  --> src/interpreter.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub struct Interpreter {
[INFO] [stdout]   |            ----------- field in this struct
[INFO] [stdout] 6 |     word_separator: char,
[INFO] [stdout] 7 |     scope: Scope,
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `scope` is never read
[INFO] [stdout]  --> src/interpreter.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub struct Interpreter {
[INFO] [stdout]   |            ----------- field in this struct
[INFO] [stdout] 6 |     word_separator: char,
[INFO] [stdout] 7 |     scope: Scope,
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stdout]   --> tests/readfile.rs:28:5
[INFO] [stdout]    |
[INFO] [stdout] 28 |     drop(cmd_stdin);
[INFO] [stdout]    |     ^^^^^---------^
[INFO] [stdout]    |          |
[INFO] [stdout]    |          argument has type `&mut ChildStdin`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dropping_references)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]    |
[INFO] [stdout] 28 -     drop(cmd_stdin);
[INFO] [stdout] 28 +     let _ = cmd_stdin;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 9.57s
[INFO] running `Command { std: "docker" "inspect" "a0a4a099b75960a4e75ebe1852b9e1f63bc4cd04e1f585b53973475d27f58d72", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a0a4a099b75960a4e75ebe1852b9e1f63bc4cd04e1f585b53973475d27f58d72", kill_on_drop: false }`
[INFO] [stdout] a0a4a099b75960a4e75ebe1852b9e1f63bc4cd04e1f585b53973475d27f58d72