[INFO] fetching crate spielrs_diff 0.2.1...
[INFO] checking spielrs_diff-0.2.1 against master#16b569057e4d1591b4bee05f10df34000308dedc for pr-127827
[INFO] extracting crate spielrs_diff 0.2.1 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate spielrs_diff 0.2.1 on toolchain 16b569057e4d1591b4bee05f10df34000308dedc
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+16b569057e4d1591b4bee05f10df34000308dedc" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate spielrs_diff 0.2.1
[INFO] finished tweaking crates.io crate spielrs_diff 0.2.1
[INFO] tweaked toml for crates.io crate spielrs_diff 0.2.1 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+16b569057e4d1591b4bee05f10df34000308dedc" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 56 packages to latest compatible versions
[INFO] [stderr]       Adding addr2line v0.22.0 (latest: v0.24.0)
[INFO] [stderr]       Adding gimli v0.29.0 (latest: v0.31.0)
[INFO] [stderr]       Adding hermit-abi v0.3.9 (latest: v0.4.0)
[INFO] [stderr]       Adding wasi v0.11.0+wasi-snapshot-preview1 (latest: v0.13.1+wasi-0.2.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+16b569057e4d1591b4bee05f10df34000308dedc" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:dff56e7819e73ed36160586b3445e93eb0be776c16704aeeded9c3fb668b2384" "/opt/rustwide/cargo-home/bin/cargo" "+16b569057e4d1591b4bee05f10df34000308dedc" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b342f1f5720fdcda5f7bea3f05129a6232eebd5dd926b3a5eaac16ec037df00e
[INFO] running `Command { std: "docker" "start" "-a" "b342f1f5720fdcda5f7bea3f05129a6232eebd5dd926b3a5eaac16ec037df00e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b342f1f5720fdcda5f7bea3f05129a6232eebd5dd926b3a5eaac16ec037df00e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b342f1f5720fdcda5f7bea3f05129a6232eebd5dd926b3a5eaac16ec037df00e", kill_on_drop: false }`
[INFO] [stdout] b342f1f5720fdcda5f7bea3f05129a6232eebd5dd926b3a5eaac16ec037df00e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:dff56e7819e73ed36160586b3445e93eb0be776c16704aeeded9c3fb668b2384" "/opt/rustwide/cargo-home/bin/cargo" "+16b569057e4d1591b4bee05f10df34000308dedc" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 25b562e5dbf4047da2938a8302c086608ad33ef51ed4c4226ddcf0d752c38ae4
[INFO] running `Command { std: "docker" "start" "-a" "25b562e5dbf4047da2938a8302c086608ad33ef51ed4c4226ddcf0d752c38ae4", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.155
[INFO] [stderr]    Compiling syn v2.0.72
[INFO] [stderr]    Compiling lock_api v0.4.12
[INFO] [stderr]    Compiling parking_lot_core v0.9.10
[INFO] [stderr]     Checking scopeguard v1.2.0
[INFO] [stderr]     Checking smallvec v1.13.2
[INFO] [stderr]     Checking futures-sink v0.3.30
[INFO] [stderr]     Checking memchr v2.7.4
[INFO] [stderr]     Checking futures-channel v0.3.30
[INFO] [stderr]     Checking mio v1.0.1
[INFO] [stderr]     Checking socket2 v0.5.7
[INFO] [stderr]     Checking signal-hook-registry v1.4.2
[INFO] [stderr]     Checking parking_lot v0.12.3
[INFO] [stderr]    Compiling futures-macro v0.3.30
[INFO] [stderr]    Compiling tokio-macros v2.4.0
[INFO] [stderr]    Compiling async-trait v0.1.81
[INFO] [stderr]     Checking tokio v1.39.1
[INFO] [stderr]     Checking futures-util v0.3.30
[INFO] [stderr]     Checking futures-executor v0.3.30
[INFO] [stderr]     Checking futures v0.3.30
[INFO] [stderr]     Checking tokio-stream v0.1.15
[INFO] [stderr]     Checking spielrs_diff v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `name` is never read
[INFO] [stdout]   --> src/tree.rs:38:9
[INFO] [stdout]    |
[INFO] [stdout] 37 | struct ExtratedFile {
[INFO] [stdout]    |        ------------ field in this struct
[INFO] [stdout] 38 |     pub name: String,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `name` is never read
[INFO] [stdout]   --> src/tree.rs:38:9
[INFO] [stdout]    |
[INFO] [stdout] 37 | struct ExtratedFile {
[INFO] [stdout]    |        ------------ field in this struct
[INFO] [stdout] 38 |     pub name: String,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.54s
[INFO] running `Command { std: "docker" "inspect" "25b562e5dbf4047da2938a8302c086608ad33ef51ed4c4226ddcf0d752c38ae4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "25b562e5dbf4047da2938a8302c086608ad33ef51ed4c4226ddcf0d752c38ae4", kill_on_drop: false }`
[INFO] [stdout] 25b562e5dbf4047da2938a8302c086608ad33ef51ed4c4226ddcf0d752c38ae4
[INFO] checking spielrs_diff-0.2.1 against try#8a6640bd72b80869b16392026cb3aa8ce8e3f9b7 for pr-127827
[INFO] extracting crate spielrs_diff 0.2.1 into /workspace/builds/worker-4-tc2/source
[INFO] validating manifest of crates.io crate spielrs_diff 0.2.1 on toolchain 8a6640bd72b80869b16392026cb3aa8ce8e3f9b7
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8a6640bd72b80869b16392026cb3aa8ce8e3f9b7" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate spielrs_diff 0.2.1
[INFO] finished tweaking crates.io crate spielrs_diff 0.2.1
[INFO] tweaked toml for crates.io crate spielrs_diff 0.2.1 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8a6640bd72b80869b16392026cb3aa8ce8e3f9b7" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 56 packages to latest compatible versions
[INFO] [stderr]       Adding addr2line v0.22.0 (latest: v0.24.0)
[INFO] [stderr]       Adding gimli v0.29.0 (latest: v0.31.0)
[INFO] [stderr]       Adding hermit-abi v0.3.9 (latest: v0.4.0)
[INFO] [stderr]       Adding wasi v0.11.0+wasi-snapshot-preview1 (latest: v0.13.1+wasi-0.2.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8a6640bd72b80869b16392026cb3aa8ce8e3f9b7" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:dff56e7819e73ed36160586b3445e93eb0be776c16704aeeded9c3fb668b2384" "/opt/rustwide/cargo-home/bin/cargo" "+8a6640bd72b80869b16392026cb3aa8ce8e3f9b7" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 428d25792cb3c712e9154701aaa9e0cf76ede7950b4e6150ebfe73eaa32860c3
[INFO] running `Command { std: "docker" "start" "-a" "428d25792cb3c712e9154701aaa9e0cf76ede7950b4e6150ebfe73eaa32860c3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "428d25792cb3c712e9154701aaa9e0cf76ede7950b4e6150ebfe73eaa32860c3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "428d25792cb3c712e9154701aaa9e0cf76ede7950b4e6150ebfe73eaa32860c3", kill_on_drop: false }`
[INFO] [stdout] 428d25792cb3c712e9154701aaa9e0cf76ede7950b4e6150ebfe73eaa32860c3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:dff56e7819e73ed36160586b3445e93eb0be776c16704aeeded9c3fb668b2384" "/opt/rustwide/cargo-home/bin/cargo" "+8a6640bd72b80869b16392026cb3aa8ce8e3f9b7" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8ce00f58c0fb90d87b32d99778c5bcd83ec22b922e7e1e5db9241c249b3ec9e3
[INFO] running `Command { std: "docker" "start" "-a" "8ce00f58c0fb90d87b32d99778c5bcd83ec22b922e7e1e5db9241c249b3ec9e3", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.155
[INFO] [stderr]    Compiling lock_api v0.4.12
[INFO] [stderr]    Compiling parking_lot_core v0.9.10
[INFO] [stderr]     Checking smallvec v1.13.2
[INFO] [stderr]     Checking futures-sink v0.3.30
[INFO] [stderr]     Checking scopeguard v1.2.0
[INFO] [stderr]    Compiling syn v2.0.72
[INFO] [stderr]     Checking memchr v2.7.4
[INFO] [stderr]     Checking futures-channel v0.3.30
[INFO] [stderr]     Checking signal-hook-registry v1.4.2
[INFO] [stderr]     Checking socket2 v0.5.7
[INFO] [stderr]     Checking mio v1.0.1
[INFO] [stderr]     Checking parking_lot v0.12.3
[INFO] [stderr]    Compiling futures-macro v0.3.30
[INFO] [stderr]    Compiling tokio-macros v2.4.0
[INFO] [stderr]    Compiling async-trait v0.1.81
[INFO] [stderr]     Checking tokio v1.39.1
[INFO] [stderr]     Checking futures-util v0.3.30
[INFO] [stderr]     Checking futures-executor v0.3.30
[INFO] [stderr]     Checking futures v0.3.30
[INFO] [stderr]     Checking tokio-stream v0.1.15
[INFO] [stderr]     Checking spielrs_diff v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]    --> src/tree.rs:208:53
[INFO] [stdout]     |
[INFO] [stdout] 208 |             .then(|file| async { fs::read_to_string(file.path).await.unwrap() })
[INFO] [stdout]     |                                                     ^^^^ cannot infer type
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]    --> src/tree.rs:208:53
[INFO] [stdout]     |
[INFO] [stdout] 208 |             .then(|file| async { fs::read_to_string(file.path).await.unwrap() })
[INFO] [stdout]     |                                                     ^^^^ cannot infer type
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0282`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `spielrs_diff` (lib) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0282`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `spielrs_diff` (lib test) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "8ce00f58c0fb90d87b32d99778c5bcd83ec22b922e7e1e5db9241c249b3ec9e3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8ce00f58c0fb90d87b32d99778c5bcd83ec22b922e7e1e5db9241c249b3ec9e3", kill_on_drop: false }`
[INFO] [stdout] 8ce00f58c0fb90d87b32d99778c5bcd83ec22b922e7e1e5db9241c249b3ec9e3