[INFO] fetching crate unshield 0.2.0...
[INFO] testing unshield-0.2.0 against try#33835004928d3bf65db4d4712e1330766263b0bd for pr-155739-1
[INFO] extracting crate unshield 0.2.0 into /workspace/builds/worker-0-tc2/source
[INFO] started tweaking crates.io crate unshield 0.2.0
[INFO] finished tweaking crates.io crate unshield 0.2.0
[INFO] tweaked toml for crates.io crate unshield 0.2.0 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate unshield 0.2.0 on toolchain 33835004928d3bf65db4d4712e1330766263b0bd
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+33835004928d3bf65db4d4712e1330766263b0bd" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate unshield 0.2.0 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" "+33835004928d3bf65db4d4712e1330766263b0bd" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+33835004928d3bf65db4d4712e1330766263b0bd" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] eedb9150801e1e3b4c48bbff0ae4c03b31a67503734947384c18d8ed86f59a7f
[INFO] running `Command { std: "docker" "start" "-a" "eedb9150801e1e3b4c48bbff0ae4c03b31a67503734947384c18d8ed86f59a7f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "eedb9150801e1e3b4c48bbff0ae4c03b31a67503734947384c18d8ed86f59a7f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eedb9150801e1e3b4c48bbff0ae4c03b31a67503734947384c18d8ed86f59a7f", kill_on_drop: false }`
[INFO] [stdout] eedb9150801e1e3b4c48bbff0ae4c03b31a67503734947384c18d8ed86f59a7f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+33835004928d3bf65db4d4712e1330766263b0bd" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d8492e8ba34d09fe36684a52847a4ad120f031957af964f2db9d6709128500bd
[INFO] running `Command { std: "docker" "start" "-a" "d8492e8ba34d09fe36684a52847a4ad120f031957af964f2db9d6709128500bd", kill_on_drop: false }`
[INFO] [stderr]    Compiling arraydeque v0.4.5
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling explode v0.1.2
[INFO] [stderr]    Compiling unshield v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: fields `files`, `size`, and `toc_offset` are never read
[INFO] [stdout]   --> src/format.rs:32:5
[INFO] [stdout]    |
[INFO] [stdout] 31 | struct Header {
[INFO] [stdout]    |        ------ fields in this struct
[INFO] [stdout] 32 |     files: u16,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 33 |     size: u32,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 34 |     toc_offset: u32,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Header` has a derived impl for the trait `Debug`, but this is 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: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/format.rs:72:17
[INFO] [stdout]    |
[INFO] [stdout] 72 |     pub fn next(&mut self) -> Result<FormatStep> {
[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] 72 |     pub fn next(&mut self) -> Result<FormatStep<'_>> {
[INFO] [stdout]    |                                                ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.06s
[INFO] running `Command { std: "docker" "inspect" "d8492e8ba34d09fe36684a52847a4ad120f031957af964f2db9d6709128500bd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d8492e8ba34d09fe36684a52847a4ad120f031957af964f2db9d6709128500bd", kill_on_drop: false }`
[INFO] [stdout] d8492e8ba34d09fe36684a52847a4ad120f031957af964f2db9d6709128500bd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+33835004928d3bf65db4d4712e1330766263b0bd" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7ebd3828441f8bafefa67e1c06268ec7bc2be4bab5350359281e80c899af9bca
[INFO] running `Command { std: "docker" "start" "-a" "7ebd3828441f8bafefa67e1c06268ec7bc2be4bab5350359281e80c899af9bca", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling fastrand v1.3.4
[INFO] [stderr]    Compiling cache-padded v1.1.1
[INFO] [stderr]    Compiling pin-project-lite v0.1.7
[INFO] [stderr]    Compiling parking v2.0.0
[INFO] [stderr]    Compiling futures-io v0.3.5
[INFO] [stderr]    Compiling futures-core v0.3.5
[INFO] [stderr]    Compiling waker-fn v1.0.0
[INFO] [stderr]    Compiling concurrent-queue v1.2.2
[INFO] [stderr]    Compiling async-task v3.0.0
[INFO] [stderr]    Compiling parking v1.0.6
[INFO] [stderr]    Compiling scoped-tls v1.0.0
[INFO] [stdout] warning: fields `files`, `size`, and `toc_offset` are never read
[INFO] [stdout]   --> src/format.rs:32:5
[INFO] [stdout]    |
[INFO] [stdout] 31 | struct Header {
[INFO] [stdout]    |        ------ fields in this struct
[INFO] [stdout] 32 |     files: u16,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 33 |     size: u32,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 34 |     toc_offset: u32,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Header` has a derived impl for the trait `Debug`, but this is 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: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/format.rs:72:17
[INFO] [stdout]    |
[INFO] [stdout] 72 |     pub fn next(&mut self) -> Result<FormatStep> {
[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] 72 |     pub fn next(&mut self) -> Result<FormatStep<'_>> {
[INFO] [stdout]    |                                                ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling multitask v0.2.0
[INFO] [stderr]    Compiling futures-lite v0.1.11
[INFO] [stderr]    Compiling async-executor v0.1.2
[INFO] [stderr]    Compiling unshield v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: fields `files`, `size`, and `toc_offset` are never read
[INFO] [stdout]   --> src/format.rs:32:5
[INFO] [stdout]    |
[INFO] [stdout] 31 | struct Header {
[INFO] [stdout]    |        ------ fields in this struct
[INFO] [stdout] 32 |     files: u16,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 33 |     size: u32,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 34 |     toc_offset: u32,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Header` has a derived impl for the trait `Debug`, but this is 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: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/format.rs:72:17
[INFO] [stdout]    |
[INFO] [stdout] 72 |     pub fn next(&mut self) -> Result<FormatStep> {
[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] 72 |     pub fn next(&mut self) -> Result<FormatStep<'_>> {
[INFO] [stdout]    |                                                ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 3.86s
[INFO] running `Command { std: "docker" "inspect" "7ebd3828441f8bafefa67e1c06268ec7bc2be4bab5350359281e80c899af9bca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7ebd3828441f8bafefa67e1c06268ec7bc2be4bab5350359281e80c899af9bca", kill_on_drop: false }`
[INFO] [stdout] 7ebd3828441f8bafefa67e1c06268ec7bc2be4bab5350359281e80c899af9bca
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+33835004928d3bf65db4d4712e1330766263b0bd" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] ab9615b23dc356b856cdecee528a541fc8c53f41e5687170b9a16d62ff9e1d84
[INFO] running `Command { std: "docker" "start" "-a" "ab9615b23dc356b856cdecee528a541fc8c53f41e5687170b9a16d62ff9e1d84", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr] warning: fields `files`, `size`, and `toc_offset` are never read
[INFO] [stdout] running 3 tests
[INFO] [stderr]   --> src/format.rs:32:5
[INFO] [stdout] test archive::tests::archive_list ... ok
[INFO] [stderr]    |
[INFO] [stdout] test archive::tests::archive_new ... ok
[INFO] [stderr] 31 | struct Header {
[INFO] [stdout] test archive::tests::archive_load ... ok
[INFO] [stderr]    |        ------ fields in this struct
[INFO] [stdout] 
[INFO] [stderr] 32 |     files: u16,
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stderr]    |     ^^^^^
[INFO] [stdout] 
[INFO] [stderr] 33 |     size: u32,
[INFO] [stdout] 
[INFO] [stderr]    |     ^^^^
[INFO] [stdout] running 0 tests
[INFO] [stderr] 34 |     toc_offset: u32,
[INFO] [stdout] 
[INFO] [stderr]    |     ^^^^^^^^^^
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stderr]    |
[INFO] [stdout] 
[INFO] [stderr]    = note: `Header` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]   --> src/format.rs:72:17
[INFO] [stderr]    |
[INFO] [stderr] 72 |     pub fn next(&mut self) -> Result<FormatStep> {
[INFO] [stderr]    |                 ^^^^^^^^^            ^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stderr]    |                 |
[INFO] [stderr]    |                 the lifetime is elided here
[INFO] [stderr]    |
[INFO] [stderr]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stderr]    |
[INFO] [stderr] 72 |     pub fn next(&mut self) -> Result<FormatStep<'_>> {
[INFO] [stderr]    |                                                ++++
[INFO] [stderr] 
[INFO] [stderr] warning: `unshield` (lib) generated 2 warnings (run `cargo fix --lib -p unshield` to apply 1 suggestion)
[INFO] [stderr] warning: `unshield` (lib test) generated 2 warnings (2 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/unshield-148b8ce256d6a0b0)
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/unshield-0fc16be04df8a98e)
[INFO] [stderr]    Doc-tests unshield
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - (line 27) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.46s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "ab9615b23dc356b856cdecee528a541fc8c53f41e5687170b9a16d62ff9e1d84", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ab9615b23dc356b856cdecee528a541fc8c53f41e5687170b9a16d62ff9e1d84", kill_on_drop: false }`
[INFO] [stdout] ab9615b23dc356b856cdecee528a541fc8c53f41e5687170b9a16d62ff9e1d84
