[INFO] fetching crate sccache 0.12.0...
[INFO] checking sccache-0.12.0 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate sccache 0.12.0 into /workspace/builds/worker-5-tc2/source
[INFO] started tweaking crates.io crate sccache 0.12.0
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate sccache 0.12.0
[INFO] tweaked toml for crates.io crate sccache 0.12.0 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate sccache 0.12.0 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 sccache 0.12.0 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" "+4f260f0f20b3133d20cfb50353c0221943af5796" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 74bc0381e3200b08a0fcb0c7a8b0a5cfa5bba0ebc36845df2397e8282ede4ec2
[INFO] running `Command { std: "docker" "start" "-a" "74bc0381e3200b08a0fcb0c7a8b0a5cfa5bba0ebc36845df2397e8282ede4ec2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "74bc0381e3200b08a0fcb0c7a8b0a5cfa5bba0ebc36845df2397e8282ede4ec2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "74bc0381e3200b08a0fcb0c7a8b0a5cfa5bba0ebc36845df2397e8282ede4ec2", kill_on_drop: false }`
[INFO] [stdout] 74bc0381e3200b08a0fcb0c7a8b0a5cfa5bba0ebc36845df2397e8282ede4ec2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 1d17bf2867500c1d4f627e55968a9361f1daccd5fbcb0129ea83da8bcbcf437c
[INFO] running `Command { std: "docker" "start" "-a" "1d17bf2867500c1d4f627e55968a9361f1daccd5fbcb0129ea83da8bcbcf437c", kill_on_drop: false }`
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[INFO] [stderr]    Compiling tokio-macros v2.5.0
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[INFO] [stderr]    Compiling serde_derive v1.0.228
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[INFO] [stderr]     Checking tokio v1.47.1
[INFO] [stderr]    Compiling prost-derive v0.13.5
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[INFO] [stderr]     Checking tokio-serde v0.8.0
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[INFO] [stderr]    Compiling serde_repr v0.1.18
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[INFO] [stderr]    Compiling serial_test_derive v3.1.0
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[INFO] [stderr]     Checking prost v0.13.5
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[INFO] [stderr]     Checking ghac v0.2.0
[INFO] [stderr]     Checking simple_asn1 v0.6.2
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[INFO] [stderr]     Checking reqwest v0.12.9
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[INFO] [stderr]     Checking reqsign v0.16.5
[INFO] [stderr]     Checking reqsign v0.18.0
[INFO] [stderr]     Checking thirtyfour_sync v0.27.1
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[INFO] [stderr]     Checking sccache v0.12.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `JobJwt` is never constructed
[INFO] [stdout]   --> src/dist/http.rs:98:16
[INFO] [stdout]    |
[INFO] [stdout] 98 |     pub struct JobJwt {
[INFO] [stdout]    |                ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `HeartbeatServerHttpRequest` is never constructed
[INFO] [stdout]    --> src/dist/http.rs:155:16
[INFO] [stdout]     |
[INFO] [stdout] 155 |     pub struct HeartbeatServerHttpRequest {
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `JobJwt` is never constructed
[INFO] [stdout]   --> src/dist/http.rs:98:16
[INFO] [stdout]    |
[INFO] [stdout] 98 |     pub struct JobJwt {
[INFO] [stdout]    |                ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `HeartbeatServerHttpRequest` is never constructed
[INFO] [stdout]    --> src/dist/http.rs:155:16
[INFO] [stdout]     |
[INFO] [stdout] 155 |     pub struct HeartbeatServerHttpRequest {
[INFO] [stdout]     |                ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<std::path::PathBuf, Infallible>
[INFO] [stdout]     --> src/compiler/msvc.rs:1706:29
[INFO] [stdout]      |
[INFO] [stdout] 1706 |             assert_eq!(Some(PathBuf::from_str("foo.obj.json").unwrap()), depfile);
[INFO] [stdout]      |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `sccache` (lib test) due to 1 previous error; 2 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "1d17bf2867500c1d4f627e55968a9361f1daccd5fbcb0129ea83da8bcbcf437c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1d17bf2867500c1d4f627e55968a9361f1daccd5fbcb0129ea83da8bcbcf437c", kill_on_drop: false }`
[INFO] [stdout] 1d17bf2867500c1d4f627e55968a9361f1daccd5fbcb0129ea83da8bcbcf437c