[INFO] fetching crate reformation 0.5.3...
[INFO] checking reformation-0.5.3 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate reformation 0.5.3 into /workspace/builds/worker-6-tc2/source
[INFO] started tweaking crates.io crate reformation 0.5.3
[INFO] finished tweaking crates.io crate reformation 0.5.3
[INFO] tweaked toml for crates.io crate reformation 0.5.3 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate reformation 0.5.3 on toolchain 4f260f0f20b3133d20cfb50353c0221943af5796
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate reformation 0.5.3 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" "+4f260f0f20b3133d20cfb50353c0221943af5796" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4e1305af5818d6f20a6eb6773b981e73dc8d83a6b482d4c73687468ecbc1d4d3
[INFO] running `Command { std: "docker" "start" "-a" "4e1305af5818d6f20a6eb6773b981e73dc8d83a6b482d4c73687468ecbc1d4d3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4e1305af5818d6f20a6eb6773b981e73dc8d83a6b482d4c73687468ecbc1d4d3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4e1305af5818d6f20a6eb6773b981e73dc8d83a6b482d4c73687468ecbc1d4d3", kill_on_drop: false }`
[INFO] [stdout] 4e1305af5818d6f20a6eb6773b981e73dc8d83a6b482d4c73687468ecbc1d4d3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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 -Dunmustuse_in_always_ok" "-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" "+4f260f0f20b3133d20cfb50353c0221943af5796" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ecc62db1a567fe1391bffd49152077eaa2c52c05721e99f8b8a47797c5db7de8
[INFO] running `Command { std: "docker" "start" "-a" "ecc62db1a567fe1391bffd49152077eaa2c52c05721e99f8b8a47797c5db7de8", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.118
[INFO] [stderr]    Compiling const_fn v0.4.3
[INFO] [stderr]    Compiling libc v0.2.81
[INFO] [stderr]     Checking memchr v2.3.4
[INFO] [stderr]    Compiling syn v1.0.54
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling cast v0.2.3
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling serde_json v1.0.60
[INFO] [stderr]     Checking itoa v0.4.6
[INFO] [stderr]    Compiling thread_local v1.0.1
[INFO] [stderr]     Checking regex-automata v0.1.9
[INFO] [stderr]    Compiling aho-corasick v0.7.15
[INFO] [stderr]     Checking crossbeam-epoch v0.9.1
[INFO] [stderr]    Compiling serde_derive v1.0.118
[INFO] [stderr]     Checking regex-syntax v0.6.21
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking crossbeam-deque v0.8.0
[INFO] [stderr]     Checking rayon-core v1.9.0
[INFO] [stderr]     Checking itertools v0.9.0
[INFO] [stderr]     Checking csv-core v0.1.10
[INFO] [stderr]     Checking half v1.6.0
[INFO] [stderr]     Checking walkdir v2.3.1
[INFO] [stderr]     Checking plotters v0.2.15
[INFO] [stderr]     Checking rayon v1.5.0
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking criterion-plot v0.4.3
[INFO] [stderr]     Checking regex v1.4.2
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking once_cell v1.5.2
[INFO] [stderr]     Checking oorandom v11.1.3
[INFO] [stderr]     Checking bstr v0.2.14
[INFO] [stderr]     Checking serde_cbor v0.11.1
[INFO] [stderr]     Checking csv v1.1.5
[INFO] [stderr]     Checking tinytemplate v1.1.0
[INFO] [stderr]    Compiling derive_more v0.99.11
[INFO] [stderr]    Compiling reformation_derive v0.5.2
[INFO] [stderr]     Checking reformation v0.5.3 (/opt/rustwide/workdir)
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]    --> src/lib.rs:256:27
[INFO] [stdout]     |
[INFO] [stdout] 256 |                   let res = c.get(offset)
[INFO] [stdout]     |  ___________________________^
[INFO] [stdout] 257 | |                     .ok_or_else(|| Error::DoesNotContainGroup)?
[INFO] [stdout] 258 | |                     .parse::<$name>()
[INFO] [stdout]     | |_____________________________________^
[INFO] [stdout] ...
[INFO] [stdout] 365 |   group_impl_parse_primitive! {r"(.*)", String}
[INFO] [stdout]     |   --------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout]     = note: this error originates in the macro `group_impl_parse_primitive` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]    --> src/lib.rs:265:27
[INFO] [stdout]     |
[INFO] [stdout] 265 |                 let res = input.parse::<$name>().map_err(|e| Error::Other(e.to_string()))?;
[INFO] [stdout]     |                           ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 365 | group_impl_parse_primitive! {r"(.*)", String}
[INFO] [stdout]     | --------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `group_impl_parse_primitive` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `reformation` (lib) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "ecc62db1a567fe1391bffd49152077eaa2c52c05721e99f8b8a47797c5db7de8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ecc62db1a567fe1391bffd49152077eaa2c52c05721e99f8b8a47797c5db7de8", kill_on_drop: false }`
[INFO] [stdout] ecc62db1a567fe1391bffd49152077eaa2c52c05721e99f8b8a47797c5db7de8