[INFO] fetching crate lets_expect_core 0.5.1...
[INFO] testing lets_expect_core-0.5.1 against try#c2e32f1c9652b13ed99608599c1e855462f421f3 for pr-146098-8
[INFO] extracting crate lets_expect_core 0.5.1 into /workspace/builds/worker-5-tc2/source
[INFO] started tweaking crates.io crate lets_expect_core 0.5.1
[INFO] finished tweaking crates.io crate lets_expect_core 0.5.1
[INFO] tweaked toml for crates.io crate lets_expect_core 0.5.1 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate lets_expect_core 0.5.1 on toolchain c2e32f1c9652b13ed99608599c1e855462f421f3
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 22 packages to latest compatible versions
[INFO] [stderr]       Adding colored v2.2.0 (available: v3.0.0)
[INFO] [stderr]       Adding syn v1.0.109 (available: v2.0.110)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f49064d6a8a7a80dd9a98e4b0872f9e2b27c183c6311abf951e637b24503ffe5
[INFO] running `Command { std: "docker" "start" "-a" "f49064d6a8a7a80dd9a98e4b0872f9e2b27c183c6311abf951e637b24503ffe5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f49064d6a8a7a80dd9a98e4b0872f9e2b27c183c6311abf951e637b24503ffe5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f49064d6a8a7a80dd9a98e4b0872f9e2b27c183c6311abf951e637b24503ffe5", kill_on_drop: false }`
[INFO] [stdout] f49064d6a8a7a80dd9a98e4b0872f9e2b27c183c6311abf951e637b24503ffe5
[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" "-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" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7426652509adf532c27346fd72c8f5971a0de0a7be41b389a02d70b4b9d64985
[INFO] running `Command { std: "docker" "start" "-a" "7426652509adf532c27346fd72c8f5971a0de0a7be41b389a02d70b4b9d64985", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.103
[INFO] [stderr]    Compiling unicode-ident v1.0.22
[INFO] [stderr]    Compiling quote v1.0.42
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling lazy_static v1.5.0
[INFO] [stderr]    Compiling english-numbers v0.3.3
[INFO] [stderr]    Compiling topological-sort v0.2.2
[INFO] [stderr]    Compiling colored v2.2.0
[INFO] [stderr]    Compiling lets_expect_core v0.5.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `keyword` is never read
[INFO] [stdout]  --> src/core/after_block.rs:6:9
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub struct AfterBlock {
[INFO] [stdout]   |            ---------- field in this struct
[INFO] [stdout] 6 |     pub keyword: keyword::after,
[INFO] [stdout]   |         ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `keyword` is never read
[INFO] [stdout]  --> src/core/before_block.rs:6:9
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub struct BeforeBlock {
[INFO] [stdout]   |            ----------- field in this struct
[INFO] [stdout] 6 |     pub keyword: keyword::before,
[INFO] [stdout]   |         ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `keyword` is never read
[INFO] [stdout]  --> src/core/story_block.rs:6:9
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub struct StoryBlock {
[INFO] [stdout]   |            ---------- field in this struct
[INFO] [stdout] 6 |     pub keyword: keyword::story,
[INFO] [stdout]   |         ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `keyword` is never read
[INFO] [stdout]  --> src/core/to_block.rs:7:9
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub struct ToBlock {
[INFO] [stdout]   |            ------- field in this struct
[INFO] [stdout] 7 |     pub keyword: keyword::to,
[INFO] [stdout]   |         ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 12.73s
[INFO] running `Command { std: "docker" "inspect" "7426652509adf532c27346fd72c8f5971a0de0a7be41b389a02d70b4b9d64985", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7426652509adf532c27346fd72c8f5971a0de0a7be41b389a02d70b4b9d64985", kill_on_drop: false }`
[INFO] [stdout] 7426652509adf532c27346fd72c8f5971a0de0a7be41b389a02d70b4b9d64985
[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" "-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" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a8ce85b4a73b373d042f13a623d9a59ac5f282caf96746fcc12045b1f17e0917
[INFO] running `Command { std: "docker" "start" "-a" "a8ce85b4a73b373d042f13a623d9a59ac5f282caf96746fcc12045b1f17e0917", kill_on_drop: false }`
[INFO] [stdout] warning: field `keyword` is never read
[INFO] [stdout]  --> src/core/after_block.rs:6:9
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub struct AfterBlock {
[INFO] [stdout]   |            ---------- field in this struct
[INFO] [stdout] 6 |     pub keyword: keyword::after,
[INFO] [stdout]   |         ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `keyword` is never read
[INFO] [stdout]  --> src/core/before_block.rs:6:9
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub struct BeforeBlock {
[INFO] [stdout]   |            ----------- field in this struct
[INFO] [stdout] 6 |     pub keyword: keyword::before,
[INFO] [stdout]   |         ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling lets_expect_core v0.5.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `keyword` is never read
[INFO] [stdout]  --> src/core/story_block.rs:6:9
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub struct StoryBlock {
[INFO] [stdout]   |            ---------- field in this struct
[INFO] [stdout] 6 |     pub keyword: keyword::story,
[INFO] [stdout]   |         ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `keyword` is never read
[INFO] [stdout]  --> src/core/to_block.rs:7:9
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub struct ToBlock {
[INFO] [stdout]   |            ------- field in this struct
[INFO] [stdout] 7 |     pub keyword: keyword::to,
[INFO] [stdout]   |         ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `keyword` is never read
[INFO] [stdout]  --> src/core/after_block.rs:6:9
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub struct AfterBlock {
[INFO] [stdout]   |            ---------- field in this struct
[INFO] [stdout] 6 |     pub keyword: keyword::after,
[INFO] [stdout]   |         ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `keyword` is never read
[INFO] [stdout]  --> src/core/before_block.rs:6:9
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub struct BeforeBlock {
[INFO] [stdout]   |            ----------- field in this struct
[INFO] [stdout] 6 |     pub keyword: keyword::before,
[INFO] [stdout]   |         ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `keyword` is never read
[INFO] [stdout]  --> src/core/story_block.rs:6:9
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub struct StoryBlock {
[INFO] [stdout]   |            ---------- field in this struct
[INFO] [stdout] 6 |     pub keyword: keyword::story,
[INFO] [stdout]   |         ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `keyword` is never read
[INFO] [stdout]  --> src/core/to_block.rs:7:9
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub struct ToBlock {
[INFO] [stdout]   |            ------- field in this struct
[INFO] [stdout] 7 |     pub keyword: keyword::to,
[INFO] [stdout]   |         ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.97s
[INFO] running `Command { std: "docker" "inspect" "a8ce85b4a73b373d042f13a623d9a59ac5f282caf96746fcc12045b1f17e0917", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a8ce85b4a73b373d042f13a623d9a59ac5f282caf96746fcc12045b1f17e0917", kill_on_drop: false }`
[INFO] [stdout] a8ce85b4a73b373d042f13a623d9a59ac5f282caf96746fcc12045b1f17e0917
[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" "-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" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 648d60aa65515044c917ed67874c34560d88fbf981c37beece602419f1a01b83
[INFO] running `Command { std: "docker" "start" "-a" "648d60aa65515044c917ed67874c34560d88fbf981c37beece602419f1a01b83", kill_on_drop: false }`
[INFO] [stderr] warning: field `keyword` is never read
[INFO] [stderr]  --> src/core/after_block.rs:6:9
[INFO] [stderr]   |
[INFO] [stderr] 5 | pub struct AfterBlock {
[INFO] [stderr]   |            ---------- field in this struct
[INFO] [stderr] 6 |     pub keyword: keyword::after,
[INFO] [stderr]   |         ^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field `keyword` is never read
[INFO] [stderr]  --> src/core/before_block.rs:6:9
[INFO] [stderr]   |
[INFO] [stderr] 5 | pub struct BeforeBlock {
[INFO] [stderr]   |            ----------- field in this struct
[INFO] [stderr] 6 |     pub keyword: keyword::before,
[INFO] [stderr]   |         ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field `keyword` is never read
[INFO] [stderr]  --> src/core/story_block.rs:6:9
[INFO] [stderr]   |
[INFO] [stderr] 5 | pub struct StoryBlock {
[INFO] [stderr]   |            ---------- field in this struct
[INFO] [stderr] 6 |     pub keyword: keyword::story,
[INFO] [stderr]   |         ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field `keyword` is never read
[INFO] [stderr]  --> src/core/to_block.rs:7:9
[INFO] [stderr]   |
[INFO] [stderr] 6 | pub struct ToBlock {
[INFO] [stderr]   |            ------- field in this struct
[INFO] [stderr] 7 |     pub keyword: keyword::to,
[INFO] [stderr]   |         ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `lets_expect_core` (lib) generated 4 warnings
[INFO] [stderr] warning: `lets_expect_core` (lib test) generated 4 warnings (4 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/lets_expect_core-85d240605808f011)
[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]    Doc-tests lets_expect_core
[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] running `Command { std: "docker" "inspect" "648d60aa65515044c917ed67874c34560d88fbf981c37beece602419f1a01b83", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "648d60aa65515044c917ed67874c34560d88fbf981c37beece602419f1a01b83", kill_on_drop: false }`
[INFO] [stdout] 648d60aa65515044c917ed67874c34560d88fbf981c37beece602419f1a01b83