[INFO] fetching crate preserves-tools 5.0.0-rc.2...
[INFO] checking preserves-tools-5.0.0-rc.2 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate preserves-tools 5.0.0-rc.2 into /workspace/builds/worker-2-tc2/source
[INFO] started tweaking crates.io crate preserves-tools 5.0.0-rc.2
[INFO] finished tweaking crates.io crate preserves-tools 5.0.0-rc.2
[INFO] tweaked toml for crates.io crate preserves-tools 5.0.0-rc.2 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate preserves-tools 5.0.0-rc.2 on toolchain 4f260f0f20b3133d20cfb50353c0221943af5796
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate preserves-tools 5.0.0-rc.2 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" "+4f260f0f20b3133d20cfb50353c0221943af5796" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 48176c591f1e076dac2f6abad2659403e30a5170e1956a07ea78043e4338a93e
[INFO] running `Command { std: "docker" "start" "-a" "48176c591f1e076dac2f6abad2659403e30a5170e1956a07ea78043e4338a93e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "48176c591f1e076dac2f6abad2659403e30a5170e1956a07ea78043e4338a93e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "48176c591f1e076dac2f6abad2659403e30a5170e1956a07ea78043e4338a93e", kill_on_drop: false }`
[INFO] [stdout] 48176c591f1e076dac2f6abad2659403e30a5170e1956a07ea78043e4338a93e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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 -Dunmustuse_in_always_ok" "-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 81e9871364eca88624cfcfc11e6079ec4979f0a9f34ad64f3e5668dcdd24ea47
[INFO] running `Command { std: "docker" "start" "-a" "81e9871364eca88624cfcfc11e6079ec4979f0a9f34ad64f3e5668dcdd24ea47", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]    Compiling base64 v0.13.1
[INFO] [stderr]    Compiling bytemuck v1.22.0
[INFO] [stderr]    Compiling libc v0.2.171
[INFO] [stderr]    Compiling regex-automata v0.4.9
[INFO] [stderr]    Compiling indexmap v1.9.3
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]    Compiling glob v0.3.2
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling thiserror-impl v1.0.69
[INFO] [stderr]     Checking clap v2.34.0
[INFO] [stderr]     Checking textwrap v0.16.2
[INFO] [stderr]     Checking once_cell v1.21.1
[INFO] [stderr]     Checking convert_case v0.4.0
[INFO] [stderr]     Checking num-integer v0.1.46
[INFO] [stderr]     Checking num-complex v0.4.6
[INFO] [stderr]     Checking thiserror v1.0.69
[INFO] [stderr]     Checking num-bigint v0.4.6
[INFO] [stderr]     Checking num-iter v0.1.45
[INFO] [stderr]    Compiling regex v1.11.1
[INFO] [stderr]     Checking num-rational v0.4.2
[INFO] [stderr]     Checking preserves v5.0.0-rc.1
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]     Checking num v0.4.3
[INFO] [stderr]    Compiling structopt-derive v0.4.18
[INFO] [stderr]    Compiling clap_derive v3.2.25
[INFO] [stderr]    Compiling structopt v0.3.26
[INFO] [stderr]    Compiling preserves-schema v6.0.0-rc.2
[INFO] [stderr]     Checking clap v3.2.25
[INFO] [stderr]    Compiling preserves-path v6.0.0-rc.2
[INFO] [stderr]     Checking clap_complete v3.2.5
[INFO] [stderr]     Checking preserves-tools v5.0.0-rc.2 (/opt/rustwide/workdir)
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]    --> src/bin/preserves-tool.rs:109:5
[INFO] [stdout]     |
[INFO] [stdout] 109 |     select_expr: String,
[INFO] [stdout]     |     ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<PathBuf, Infallible>
[INFO] [stdout]    --> src/bin/preserves-tool.rs:124:5
[INFO] [stdout]     |
[INFO] [stdout] 124 |     bundle: Vec<std::path::PathBuf>,
[INFO] [stdout]     |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `preserves-tools` (bin "preserves-tool") due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]    --> src/bin/preserves-tool.rs:109:5
[INFO] [stdout]     |
[INFO] [stdout] 109 |     select_expr: String,
[INFO] [stdout]     |     ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<PathBuf, Infallible>
[INFO] [stdout]    --> src/bin/preserves-tool.rs:124:5
[INFO] [stdout]     |
[INFO] [stdout] 124 |     bundle: Vec<std::path::PathBuf>,
[INFO] [stdout]     |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `preserves-tools` (bin "preserves-tool" test) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "81e9871364eca88624cfcfc11e6079ec4979f0a9f34ad64f3e5668dcdd24ea47", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "81e9871364eca88624cfcfc11e6079ec4979f0a9f34ad64f3e5668dcdd24ea47", kill_on_drop: false }`
[INFO] [stdout] 81e9871364eca88624cfcfc11e6079ec4979f0a9f34ad64f3e5668dcdd24ea47