[INFO] fetching crate subslice-offset 0.1.1...
[INFO] testing subslice-offset-0.1.1 against 1.91.0 for beta-1.92-2
[INFO] extracting crate subslice-offset 0.1.1 into /workspace/builds/worker-6-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-6-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate subslice-offset 0.1.1 on toolchain 1.91.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.91.0" "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" "+1.91.0" "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" "+1.91.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 568350a38c95a836bbff61153f3b2f40f8e52bf004ecca7da5aa77587e5164dd
[INFO] running `Command { std: "docker" "start" "-a" "568350a38c95a836bbff61153f3b2f40f8e52bf004ecca7da5aa77587e5164dd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "568350a38c95a836bbff61153f3b2f40f8e52bf004ecca7da5aa77587e5164dd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "568350a38c95a836bbff61153f3b2f40f8e52bf004ecca7da5aa77587e5164dd", kill_on_drop: false }`
[INFO] [stdout] 568350a38c95a836bbff61153f3b2f40f8e52bf004ecca7da5aa77587e5164dd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1ba10ddce4a91b20a5b35fed37460bab6e3842d166780013bcd2eea11b4e2240
[INFO] running `Command { std: "docker" "start" "-a" "1ba10ddce4a91b20a5b35fed37460bab6e3842d166780013bcd2eea11b4e2240", 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 0.09s
[INFO] running `Command { std: "docker" "inspect" "1ba10ddce4a91b20a5b35fed37460bab6e3842d166780013bcd2eea11b4e2240", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1ba10ddce4a91b20a5b35fed37460bab6e3842d166780013bcd2eea11b4e2240", kill_on_drop: false }`
[INFO] [stdout] 1ba10ddce4a91b20a5b35fed37460bab6e3842d166780013bcd2eea11b4e2240
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 756d6ff99d4b10c00610d0fe69008c6968aedbaf46fc5683730968de8f63194d
[INFO] running `Command { std: "docker" "start" "-a" "756d6ff99d4b10c00610d0fe69008c6968aedbaf46fc5683730968de8f63194d", 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" "756d6ff99d4b10c00610d0fe69008c6968aedbaf46fc5683730968de8f63194d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "756d6ff99d4b10c00610d0fe69008c6968aedbaf46fc5683730968de8f63194d", kill_on_drop: false }`
[INFO] [stdout] 756d6ff99d4b10c00610d0fe69008c6968aedbaf46fc5683730968de8f63194d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 3fa629d08ad03b0a5d4da215384925e2fca4c3011549bf25fe29571614a17961
[INFO] running `Command { std: "docker" "start" "-a" "3fa629d08ad03b0a5d4da215384925e2fca4c3011549bf25fe29571614a17961", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/subslice_offset-e2fd6fb90888d9e5)
[INFO] [stdout] running 0 tests
[INFO] [stderr]    Doc-tests subslice_offset
[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] [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 0.17s
[INFO] [stdout] 
[INFO] [stderr] error: doctest failed, to rerun pass `--doc`
[INFO] running `Command { std: "docker" "inspect" "3fa629d08ad03b0a5d4da215384925e2fca4c3011549bf25fe29571614a17961", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3fa629d08ad03b0a5d4da215384925e2fca4c3011549bf25fe29571614a17961", kill_on_drop: false }`
[INFO] [stdout] 3fa629d08ad03b0a5d4da215384925e2fca4c3011549bf25fe29571614a17961