[INFO] fetching crate source-span 2.7.0...
[INFO] testing source-span-2.7.0 against beta-2022-04-10 for beta-1.61-1
[INFO] extracting crate source-span 2.7.0 into /workspace/builds/worker-30/source
[INFO] validating manifest of crates.io crate source-span 2.7.0 on toolchain beta-2022-04-10
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate source-span 2.7.0
[INFO] finished tweaking crates.io crate source-span 2.7.0
[INFO] tweaked toml for crates.io crate source-span 2.7.0 written to /workspace/builds/worker-30/source/Cargo.toml
[INFO] crate crates.io crate source-span 2.7.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-30/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-30/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a926e26668150b3c3a9a9f6eefd5d1595e7a7ab980b3f82cde7adff674a62a54
[INFO] running `Command { std: "docker" "start" "-a" "a926e26668150b3c3a9a9f6eefd5d1595e7a7ab980b3f82cde7adff674a62a54", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a926e26668150b3c3a9a9f6eefd5d1595e7a7ab980b3f82cde7adff674a62a54", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a926e26668150b3c3a9a9f6eefd5d1595e7a7ab980b3f82cde7adff674a62a54", kill_on_drop: false }`
[INFO] [stdout] a926e26668150b3c3a9a9f6eefd5d1595e7a7ab980b3f82cde7adff674a62a54
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-30/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-30/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" "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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bc0b0ac6f1855d7a30a0513cce3b26e6565e0b89d8f431f735888867b7b9e1cb
[INFO] running `Command { std: "docker" "start" "-a" "bc0b0ac6f1855d7a30a0513cce3b26e6565e0b89d8f431f735888867b7b9e1cb", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.94
[INFO] [stderr]    Compiling numtoa v0.1.0
[INFO] [stderr]    Compiling termion v1.5.6
[INFO] [stderr]    Compiling source-span v2.7.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.67s
[INFO] running `Command { std: "docker" "inspect" "bc0b0ac6f1855d7a30a0513cce3b26e6565e0b89d8f431f735888867b7b9e1cb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bc0b0ac6f1855d7a30a0513cce3b26e6565e0b89d8f431f735888867b7b9e1cb", kill_on_drop: false }`
[INFO] [stdout] bc0b0ac6f1855d7a30a0513cce3b26e6565e0b89d8f431f735888867b7b9e1cb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-30/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-30/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" "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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f6826cf817cb32313321b28db0b0328e00729922ae0d876a975cc7a6d4d46bce
[INFO] running `Command { std: "docker" "start" "-a" "f6826cf817cb32313321b28db0b0328e00729922ae0d876a975cc7a6d4d46bce", kill_on_drop: false }`
[INFO] [stderr]    Compiling utf8-decode v1.0.1
[INFO] [stderr]    Compiling source-span v2.7.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `string`
[INFO] [stdout]  --> examples/formatting_challenge.rs:8:2
[INFO] [stdout]   |
[INFO] [stdout] 8 |     string: String,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] note: `Token` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]  --> examples/formatting_challenge.rs:6:10
[INFO] [stdout]   |
[INFO] [stdout] 6 | #[derive(Clone, Default)]
[INFO] [stdout]   |          ^^^^^
[INFO] [stdout]   = note: this warning originates in the derive macro `Clone` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `span`
[INFO] [stdout]  --> examples/formatting_challenge.rs:9:2
[INFO] [stdout]   |
[INFO] [stdout] 9 |     span: Span,
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout] note: `Token` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]  --> examples/formatting_challenge.rs:6:10
[INFO] [stdout]   |
[INFO] [stdout] 6 | #[derive(Clone, Default)]
[INFO] [stdout]   |          ^^^^^
[INFO] [stdout]   = note: this warning originates in the derive macro `Clone` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 8.30s
[INFO] [stderr]   Executable unittests src/lib.rs (/opt/rustwide/target/debug/deps/source_span-297292ddfb49019d)
[INFO] running `Command { std: "docker" "inspect" "f6826cf817cb32313321b28db0b0328e00729922ae0d876a975cc7a6d4d46bce", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f6826cf817cb32313321b28db0b0328e00729922ae0d876a975cc7a6d4d46bce", kill_on_drop: false }`
[INFO] [stdout] f6826cf817cb32313321b28db0b0328e00729922ae0d876a975cc7a6d4d46bce
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-30/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-30/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" "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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 9880557cc6d5d4c6da9a91be1b13926ba2422871bee5d308fbdf7da1a5923b66
[INFO] running `Command { std: "docker" "start" "-a" "9880557cc6d5d4c6da9a91be1b13926ba2422871bee5d308fbdf7da1a5923b66", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] warning: field is never read: `string`
[INFO] [stderr]  --> examples/formatting_challenge.rs:8:2
[INFO] [stderr]   |
[INFO] [stderr] 8 |     string: String,
[INFO] [stderr]   |     ^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] note: `Token` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]  --> examples/formatting_challenge.rs:6:10
[INFO] [stderr]   |
[INFO] [stderr] 6 | #[derive(Clone, Default)]
[INFO] [stderr]   |          ^^^^^
[INFO] [stderr]   = note: this warning originates in the derive macro `Clone` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `span`
[INFO] [stderr]  --> examples/formatting_challenge.rs:9:2
[INFO] [stderr]   |
[INFO] [stderr] 9 |     span: Span,
[INFO] [stderr]   |     ^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr] note: `Token` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]  --> examples/formatting_challenge.rs:6:10
[INFO] [stderr]   |
[INFO] [stderr] 6 | #[derive(Clone, Default)]
[INFO] [stderr]   |          ^^^^^
[INFO] [stderr]   = note: this warning originates in the derive macro `Clone` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: `source-span` (example "formatting_challenge") generated 2 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/source_span-297292ddfb49019d)
[INFO] [stdout] 
[INFO] [stdout] running 13 tests
[INFO] [stdout] test layout::tests::get_byte_index1 ... ok
[INFO] [stdout] test layout::tests::get_byte_index2 ... ok
[INFO] [stdout] test layout::tests::get_byte_index3 ... ok
[INFO] [stdout] test layout::tests::get_span_slice1 ... ok
[INFO] [stdout] test layout::tests::get_byte_index_out_of_bounds2 ... ok
[INFO] [stdout] test layout::tests::get_span_slice2 ... ok
[INFO] [stdout] test layout::tests::get_byte_index_out_of_bounds1 ... ok
[INFO] [stdout] test layout::tests::get_span_slice3 ... ok
[INFO] [stdout] test layout::tests::get_span_slice4 ... ok
[INFO] [stdout] test layout::tests::get_span_slice5 ... ok
[INFO] [stdout] test position::tests::test_debug ... ok
[INFO] [stdout] test tests::test_display_span ... ok
[INFO] [stdout] test position::tests::test_ord_position ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 13 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests source-span
[INFO] [stdout] 
[INFO] [stdout] running 7 tests
[INFO] [stdout] test src/lib.rs - (line 27) ... ok
[INFO] [stdout] test src/position.rs - position::Position::end (line 41) ... ok
[INFO] [stdout] test src/lib.rs - (line 11) ... ok
[INFO] [stdout] test src/lib.rs - Span (line 154) ... ok
[INFO] [stdout] test src/lib.rs - (line 57) ... ok
[INFO] [stdout] test src/lib.rs - (line 76) ... ok
[INFO] [stdout] test src/fmt.rs - fmt::Formatter::render (line 934) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 7 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.56s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "9880557cc6d5d4c6da9a91be1b13926ba2422871bee5d308fbdf7da1a5923b66", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9880557cc6d5d4c6da9a91be1b13926ba2422871bee5d308fbdf7da1a5923b66", kill_on_drop: false }`
[INFO] [stdout] 9880557cc6d5d4c6da9a91be1b13926ba2422871bee5d308fbdf7da1a5923b66