[INFO] fetching crate subslice-offset 0.1.1...
[INFO] testing subslice-offset-0.1.1 against 1.90.0 for beta-1.91-3
[INFO] extracting crate subslice-offset 0.1.1 into /workspace/builds/worker-1-tc1/source
[INFO] started tweaking crates.io crate subslice-offset 0.1.1
[INFO] finished tweaking crates.io crate subslice-offset 0.1.1
[INFO] tweaked toml for crates.io crate subslice-offset 0.1.1 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate subslice-offset 0.1.1 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] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 8c3eb282477f904698af9af50589a4528768eba555a530854a8184c56c7b93e4
[INFO] running `Command { std: "docker" "start" "-a" "8c3eb282477f904698af9af50589a4528768eba555a530854a8184c56c7b93e4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8c3eb282477f904698af9af50589a4528768eba555a530854a8184c56c7b93e4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8c3eb282477f904698af9af50589a4528768eba555a530854a8184c56c7b93e4", kill_on_drop: false }`
[INFO] [stdout] 8c3eb282477f904698af9af50589a4528768eba555a530854a8184c56c7b93e4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 9f3527fd3ce14f8a0f1e616a150e118b07d44bac7d719eb3ab229accc1b757c5
[INFO] running `Command { std: "docker" "start" "-a" "9f3527fd3ce14f8a0f1e616a150e118b07d44bac7d719eb3ab229accc1b757c5", kill_on_drop: false }`
[INFO] [stderr]    Compiling subslice-offset v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.08s
[INFO] running `Command { std: "docker" "inspect" "9f3527fd3ce14f8a0f1e616a150e118b07d44bac7d719eb3ab229accc1b757c5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9f3527fd3ce14f8a0f1e616a150e118b07d44bac7d719eb3ab229accc1b757c5", kill_on_drop: false }`
[INFO] [stdout] 9f3527fd3ce14f8a0f1e616a150e118b07d44bac7d719eb3ab229accc1b757c5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 93510b8bc0d359f88d8873561c8620323fd555557335947488383f8ef2d60b46
[INFO] running `Command { std: "docker" "start" "-a" "93510b8bc0d359f88d8873561c8620323fd555557335947488383f8ef2d60b46", kill_on_drop: false }`
[INFO] [stderr]    Compiling subslice-offset v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.23s
[INFO] running `Command { std: "docker" "inspect" "93510b8bc0d359f88d8873561c8620323fd555557335947488383f8ef2d60b46", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "93510b8bc0d359f88d8873561c8620323fd555557335947488383f8ef2d60b46", kill_on_drop: false }`
[INFO] [stdout] 93510b8bc0d359f88d8873561c8620323fd555557335947488383f8ef2d60b46
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] cc420decebb11af19b593d43200558e65bcfe4bd604a46dc6b56826447cc78de
[INFO] running `Command { std: "docker" "start" "-a" "cc420decebb11af19b593d43200558e65bcfe4bd604a46dc6b56826447cc78de", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/subslice_offset-d6f42cf4bea95ccf)
[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 subslice_offset
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - SubsliceOffset::subslice_offset (line 11) ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/lib.rs - SubsliceOffset::subslice_offset (line 11) stdout ----
[INFO] [stdout] error[E0599]: no method named `subslice_offset` found for reference `&str` in the current scope
[INFO] [stdout]  --> src/lib.rs:15:19
[INFO] [stdout]   |
[INFO] [stdout] 7 | assert_eq!(string.subslice_offset(lines[0]), Some(0)); // &"a"
[INFO] [stdout]   |                   ^^^^^^^^^^^^^^^ method not found in `&str`
[INFO] [stdout]   |
[INFO] [stdout]   = help: items from traits can only be used if the trait is in scope
[INFO] [stdout] help: trait `SubsliceOffset` which provides `subslice_offset` is implemented but not in scope; perhaps you want to import it
[INFO] [stdout]   |
[INFO] [stdout] 2 + use crate::subslice_offset::SubsliceOffset;
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `subslice_offset` found for reference `&str` in the current scope
[INFO] [stdout]  --> src/lib.rs:16:19
[INFO] [stdout]   |
[INFO] [stdout] 8 | assert_eq!(string.subslice_offset(lines[1]), Some(2)); // &"b"
[INFO] [stdout]   |                   ^^^^^^^^^^^^^^^ method not found in `&str`
[INFO] [stdout]   |
[INFO] [stdout]   = help: items from traits can only be used if the trait is in scope
[INFO] [stdout] help: trait `SubsliceOffset` which provides `subslice_offset` is implemented but not in scope; perhaps you want to import it
[INFO] [stdout]   |
[INFO] [stdout] 2 + use crate::subslice_offset::SubsliceOffset;
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `subslice_offset` found for reference `&str` in the current scope
[INFO] [stdout]  --> src/lib.rs:17:19
[INFO] [stdout]   |
[INFO] [stdout] 9 | assert_eq!(string.subslice_offset(lines[2]), Some(4)); // &"c"
[INFO] [stdout]   |                   ^^^^^^^^^^^^^^^ method not found in `&str`
[INFO] [stdout]   |
[INFO] [stdout]   = help: items from traits can only be used if the trait is in scope
[INFO] [stdout] help: trait `SubsliceOffset` which provides `subslice_offset` is implemented but not in scope; perhaps you want to import it
[INFO] [stdout]   |
[INFO] [stdout] 2 + use crate::subslice_offset::SubsliceOffset;
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `subslice_offset` found for reference `&str` in the current scope
[INFO] [stdout]   --> src/lib.rs:18:19
[INFO] [stdout]    |
[INFO] [stdout] 10 | assert_eq!(string.subslice_offset("other!"), None);
[INFO] [stdout]    |                   ^^^^^^^^^^^^^^^ method not found in `&str`
[INFO] [stdout]    |
[INFO] [stdout]    = help: items from traits can only be used if the trait is in scope
[INFO] [stdout] help: trait `SubsliceOffset` which provides `subslice_offset` is implemented but not in scope; perhaps you want to import it
[INFO] [stdout]    |
[INFO] [stdout]  2 + use crate::subslice_offset::SubsliceOffset;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 4 previous errors
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0599`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/lib.rs - SubsliceOffset::subslice_offset (line 11)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.11s
[INFO] [stdout] 
[INFO] [stderr] error: doctest failed, to rerun pass `--doc`
[INFO] running `Command { std: "docker" "inspect" "cc420decebb11af19b593d43200558e65bcfe4bd604a46dc6b56826447cc78de", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cc420decebb11af19b593d43200558e65bcfe4bd604a46dc6b56826447cc78de", kill_on_drop: false }`
[INFO] [stdout] cc420decebb11af19b593d43200558e65bcfe4bd604a46dc6b56826447cc78de