[INFO] fetching crate trait_deref 0.2.2...
[INFO] testing trait_deref-0.2.2 against 1.90.0 for beta-1.91-3
[INFO] extracting crate trait_deref 0.2.2 into /workspace/builds/worker-0-tc1/source
[INFO] started tweaking crates.io crate trait_deref 0.2.2
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate trait_deref 0.2.2
[INFO] tweaked toml for crates.io crate trait_deref 0.2.2 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate trait_deref 0.2.2 on toolchain 1.90.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate trait_deref 0.2.2 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" "+1.90.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded unicode-ident v1.0.15
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d50b4a02fa5d807aebadc6a30b653240da80dfcb17f7dad36e0c4016b4711878
[INFO] running `Command { std: "docker" "start" "-a" "d50b4a02fa5d807aebadc6a30b653240da80dfcb17f7dad36e0c4016b4711878", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d50b4a02fa5d807aebadc6a30b653240da80dfcb17f7dad36e0c4016b4711878", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d50b4a02fa5d807aebadc6a30b653240da80dfcb17f7dad36e0c4016b4711878", kill_on_drop: false }`
[INFO] [stdout] d50b4a02fa5d807aebadc6a30b653240da80dfcb17f7dad36e0c4016b4711878
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3f962ede25f0ef0197539b46f4f698dc799d8a7e445bd4a125c910592363ed79
[INFO] running `Command { std: "docker" "start" "-a" "3f962ede25f0ef0197539b46f4f698dc799d8a7e445bd4a125c910592363ed79", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.93
[INFO] [stderr]    Compiling unicode-ident v1.0.15
[INFO] [stderr]    Compiling unicode-segmentation v1.12.0
[INFO] [stderr]    Compiling convert_case v0.7.1
[INFO] [stderr]    Compiling quote v1.0.38
[INFO] [stderr]    Compiling syn v2.0.96
[INFO] [stderr]    Compiling trait_deref v0.2.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: fields `at_token`, `bracket`, and `colon_token` are never read
[INFO] [stdout]    --> src/lib.rs:221:9
[INFO] [stdout]     |
[INFO] [stdout] 220 | struct ImplBlock {
[INFO] [stdout]     |        --------- fields in this struct
[INFO] [stdout] 221 |     pub at_token: Token![@],
[INFO] [stdout]     |         ^^^^^^^^
[INFO] [stdout] 222 |     pub bracket: Bracket,
[INFO] [stdout]     |         ^^^^^^^
[INFO] [stdout] 223 |     pub field: Ident,
[INFO] [stdout] 224 |     pub colon_token: Token![:],
[INFO] [stdout]     |         ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 7.55s
[INFO] running `Command { std: "docker" "inspect" "3f962ede25f0ef0197539b46f4f698dc799d8a7e445bd4a125c910592363ed79", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3f962ede25f0ef0197539b46f4f698dc799d8a7e445bd4a125c910592363ed79", kill_on_drop: false }`
[INFO] [stdout] 3f962ede25f0ef0197539b46f4f698dc799d8a7e445bd4a125c910592363ed79
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9c388bce67c5d20d738f73defbece3f3f0b08a141e4ddf30c92d5d636ffe10ca
[INFO] running `Command { std: "docker" "start" "-a" "9c388bce67c5d20d738f73defbece3f3f0b08a141e4ddf30c92d5d636ffe10ca", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.93
[INFO] [stderr]    Compiling unicode-ident v1.0.15
[INFO] [stderr]    Compiling unicode-segmentation v1.12.0
[INFO] [stderr]    Compiling convert_case v0.7.1
[INFO] [stderr]    Compiling quote v1.0.38
[INFO] [stderr]    Compiling syn v2.0.96
[INFO] [stderr]    Compiling trait_deref v0.2.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: fields `at_token`, `bracket`, and `colon_token` are never read
[INFO] [stdout]    --> src/lib.rs:221:9
[INFO] [stdout]     |
[INFO] [stdout] 220 | struct ImplBlock {
[INFO] [stdout]     |        --------- fields in this struct
[INFO] [stdout] 221 |     pub at_token: Token![@],
[INFO] [stdout]     |         ^^^^^^^^
[INFO] [stdout] 222 |     pub bracket: Bracket,
[INFO] [stdout]     |         ^^^^^^^
[INFO] [stdout] 223 |     pub field: Ident,
[INFO] [stdout] 224 |     pub colon_token: Token![:],
[INFO] [stdout]     |         ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `at_token`, `bracket`, and `colon_token` are never read
[INFO] [stdout]    --> src/lib.rs:221:9
[INFO] [stdout]     |
[INFO] [stdout] 220 | struct ImplBlock {
[INFO] [stdout]     |        --------- fields in this struct
[INFO] [stdout] 221 |     pub at_token: Token![@],
[INFO] [stdout]     |         ^^^^^^^^
[INFO] [stdout] 222 |     pub bracket: Bracket,
[INFO] [stdout]     |         ^^^^^^^
[INFO] [stdout] 223 |     pub field: Ident,
[INFO] [stdout] 224 |     pub colon_token: Token![:],
[INFO] [stdout]     |         ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `EmptyTrait` is never used
[INFO] [stdout]  --> tests/empty.rs:4:7
[INFO] [stdout]   |
[INFO] [stdout] 4 | trait EmptyTrait {}
[INFO] [stdout]   |       ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `A` is never constructed
[INFO] [stdout]  --> tests/empty.rs:6:8
[INFO] [stdout]   |
[INFO] [stdout] 6 | struct A<T: EmptyTrait> {
[INFO] [stdout]   |        ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 9.33s
[INFO] running `Command { std: "docker" "inspect" "9c388bce67c5d20d738f73defbece3f3f0b08a141e4ddf30c92d5d636ffe10ca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9c388bce67c5d20d738f73defbece3f3f0b08a141e4ddf30c92d5d636ffe10ca", kill_on_drop: false }`
[INFO] [stdout] 9c388bce67c5d20d738f73defbece3f3f0b08a141e4ddf30c92d5d636ffe10ca
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 7ac19b1ca0c633d9b8e8c90a2989cfe59ac392f9485de4743bc992a1e30cd07e
[INFO] running `Command { std: "docker" "start" "-a" "7ac19b1ca0c633d9b8e8c90a2989cfe59ac392f9485de4743bc992a1e30cd07e", kill_on_drop: false }`
[INFO] [stderr] warning: fields `at_token`, `bracket`, and `colon_token` are never read
[INFO] [stderr]    --> src/lib.rs:221:9
[INFO] [stderr]     |
[INFO] [stderr] 220 | struct ImplBlock {
[INFO] [stderr]     |        --------- fields in this struct
[INFO] [stderr] 221 |     pub at_token: Token![@],
[INFO] [stderr]     |         ^^^^^^^^
[INFO] [stderr] 222 |     pub bracket: Bracket,
[INFO] [stderr]     |         ^^^^^^^
[INFO] [stderr] 223 |     pub field: Ident,
[INFO] [stderr] 224 |     pub colon_token: Token![:],
[INFO] [stderr]     |         ^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `trait_deref` (lib) generated 1 warning
[INFO] [stderr] warning: `trait_deref` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr] warning: trait `EmptyTrait` is never used
[INFO] [stderr]  --> tests/empty.rs:4:7
[INFO] [stderr]   |
[INFO] [stderr] 4 | trait EmptyTrait {}
[INFO] [stderr]   |       ^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: struct `A` is never constructed
[INFO] [stderr]  --> tests/empty.rs:6:8
[INFO] [stderr]   |
[INFO] [stderr] 6 | struct A<T: EmptyTrait> {
[INFO] [stderr]   |        ^
[INFO] [stderr] 
[INFO] [stderr] warning: `trait_deref` (test "empty") generated 2 warnings
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.07s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/trait_deref-5391a86ba6b564da)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/empty.rs (/opt/rustwide/target/debug/deps/empty-e5fa6bd84dc5b5f2)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/extension.rs (/opt/rustwide/target/debug/deps/extension-f90d544b76f1f48c)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test main ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "7ac19b1ca0c633d9b8e8c90a2989cfe59ac392f9485de4743bc992a1e30cd07e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7ac19b1ca0c633d9b8e8c90a2989cfe59ac392f9485de4743bc992a1e30cd07e", kill_on_drop: false }`
[INFO] [stdout] 7ac19b1ca0c633d9b8e8c90a2989cfe59ac392f9485de4743bc992a1e30cd07e