[INFO] updating cached repository https://github.com/paavohuhtala/bfcrs
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] cfa75356188b83ce56b1de13366bd431c304cfa2
[INFO] checking paavohuhtala/bfcrs against nightly-2019-10-27 for pr-65897
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpaavohuhtala%2Fbfcrs" "/workspace/builds/worker-5/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/paavohuhtala/bfcrs on toolchain nightly-2019-10-27
[INFO] running `"/workspace/cargo-home/bin/cargo" "+nightly-2019-10-27" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/paavohuhtala/bfcrs
[INFO] finished tweaking git repo https://github.com/paavohuhtala/bfcrs
[INFO] tweaked toml for git repo https://github.com/paavohuhtala/bfcrs written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/paavohuhtala/bfcrs already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+nightly-2019-10-27" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=allow" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+nightly-2019-10-27" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 9db4e9fe24475fb8d848c01bb7a9dbfd50c7518c8624bba3166234ec4d96639a
[INFO] running `"docker" "start" "-a" "9db4e9fe24475fb8d848c01bb7a9dbfd50c7518c8624bba3166234ec4d96639a"`
[INFO] [stderr]     Checking leb128 v0.2.3
[INFO] [stderr]     Checking bfcrs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] error: `X..` range patterns are not supported
[INFO] [stderr]   --> src/optimizer.rs:13:45
[INFO] [stderr]    |
[INFO] [stderr] 13 |       (Some(ChangeAddr(a)), [ChangeAddr(b), tail..]) => (Some(ChangeAddr(a + b)), tail),
[INFO] [stderr]    |                                             ^^^^^^ help: try using the maximum value for the type: `tail..MAX`
[INFO] [stderr] 
[INFO] [stderr] error: `X..` range patterns are not supported
[INFO] [stderr]   --> src/optimizer.rs:14:79
[INFO] [stderr]    |
[INFO] [stderr] 14 |       (Some(Offset(offs_a, ChangeValue(a))), [Offset(offs_b, ChangeValue(b)), tail..])
[INFO] [stderr]    |                                                                               ^^^^^^ help: try using the maximum value for the type: `tail..MAX`
[INFO] [stderr] 
[INFO] [stderr] error: `X..` range patterns are not supported
[INFO] [stderr]   --> src/optimizer.rs:21:68
[INFO] [stderr]    |
[INFO] [stderr] 21 |         [Offset(0, ChangeValue(value)), ChangeAddr(addr_offset_b), tail..],
[INFO] [stderr]    |                                                                    ^^^^^^ help: try using the maximum value for the type: `tail..MAX`
[INFO] [stderr] 
[INFO] [stderr] error: `X..` range patterns are not supported
[INFO] [stderr]   --> src/optimizer.rs:38:20
[INFO] [stderr]    |
[INFO] [stderr] 38 |             [head, tail..] => (Some(head.clone()), tail),
[INFO] [stderr]    |                    ^^^^^^ help: try using the maximum value for the type: `tail..MAX`
[INFO] [stderr] 
[INFO] [stderr] error: `X..` range patterns are not supported
[INFO] [stderr]   --> src/optimizer.rs:42:76
[INFO] [stderr]    |
[INFO] [stderr] 42 |       (Some(Offset(offs_a, SetValue(0))), [Offset(offs_b, ChangeValue(a)), tail..])
[INFO] [stderr]    |                                                                            ^^^^^^ help: try using the maximum value for the type: `tail..MAX`
[INFO] [stderr] 
[INFO] [stderr] error: `X..` range patterns are not supported
[INFO] [stderr]   --> src/optimizer.rs:13:45
[INFO] [stderr]    |
[INFO] [stderr] 13 |       (Some(ChangeAddr(a)), [ChangeAddr(b), tail..]) => (Some(ChangeAddr(a + b)), tail),
[INFO] [stderr]    |                                             ^^^^^^ help: try using the maximum value for the type: `tail..MAX`
[INFO] [stderr] 
[INFO] [stderr] error: `X..` range patterns are not supported
[INFO] [stderr]   --> src/optimizer.rs:14:79
[INFO] [stderr]    |
[INFO] [stderr] 14 |       (Some(Offset(offs_a, ChangeValue(a))), [Offset(offs_b, ChangeValue(b)), tail..])
[INFO] [stderr]    |                                                                               ^^^^^^ help: try using the maximum value for the type: `tail..MAX`
[INFO] [stderr] 
[INFO] [stderr] error: `X..` range patterns are not supported
[INFO] [stderr]   --> src/optimizer.rs:21:68
[INFO] [stderr]    |
[INFO] [stderr] 21 |         [Offset(0, ChangeValue(value)), ChangeAddr(addr_offset_b), tail..],
[INFO] [stderr]    |                                                                    ^^^^^^ help: try using the maximum value for the type: `tail..MAX`
[INFO] [stderr] 
[INFO] [stderr] error: `X..` range patterns are not supported
[INFO] [stderr]   --> src/optimizer.rs:38:20
[INFO] [stderr]    |
[INFO] [stderr] 38 |             [head, tail..] => (Some(head.clone()), tail),
[INFO] [stderr]    |                    ^^^^^^ help: try using the maximum value for the type: `tail..MAX`
[INFO] [stderr] 
[INFO] [stderr] error: `X..` range patterns are not supported
[INFO] [stderr]   --> src/optimizer.rs:42:76
[INFO] [stderr]    |
[INFO] [stderr] 42 |       (Some(Offset(offs_a, SetValue(0))), [Offset(offs_b, ChangeValue(a)), tail..])
[INFO] [stderr]    |                                                                            ^^^^^^ help: try using the maximum value for the type: `tail..MAX`
[INFO] [stderr] 
[INFO] [stderr] error: `X..` range patterns are not supported
[INFO] [stderr]   --> src/optimizer.rs:47:73
[INFO] [stderr]    |
[INFO] [stderr] 47 |       (Some(Offset(offs_a, SetValue(_))), [Offset(offs_b, SetValue(a)), tail..])
[INFO] [stderr]    |                                                                         ^^^^^^ help: try using the maximum value for the type: `tail..MAX`
[INFO] [stderr] 
[INFO] [stderr] error: `X..` range patterns are not supported
[INFO] [stderr]   --> src/optimizer.rs:47:73
[INFO] [stderr]    |
[INFO] [stderr] 47 |       (Some(Offset(offs_a, SetValue(_))), [Offset(offs_b, SetValue(a)), tail..])
[INFO] [stderr]    |                                                                         ^^^^^^ help: try using the maximum value for the type: `tail..MAX`
[INFO] [stderr] 
[INFO] [stderr] error: `X..` range patterns are not supported
[INFO] [stderr]   --> src/optimizer.rs:48:78
[INFO] [stderr]    |
[INFO] [stderr] 48 |       | (Some(Offset(offs_a, ChangeValue(_))), [Offset(offs_b, SetValue(a)), tail..])
[INFO] [stderr]    |                                                                              ^^^^^^ help: try using the maximum value for the type: `tail..MAX`
[INFO] [stderr] 
[INFO] [stderr] error: `X..` range patterns are not supported
[INFO] [stderr]   --> src/optimizer.rs:58:32
[INFO] [stderr]    |
[INFO] [stderr] 58 |       (Some(ref token), [head, tail..]) => {
[INFO] [stderr]    |                                ^^^^^^ help: try using the maximum value for the type: `tail..MAX`
[INFO] [stderr] 
[INFO] [stderr] error: `X..` range patterns are not supported
[INFO] [stderr]   --> src/optimizer.rs:62:21
[INFO] [stderr]    |
[INFO] [stderr] 62 |       (None, [head, tail..]) => (Some(head.clone()), tail),
[INFO] [stderr]    |                     ^^^^^^ help: try using the maximum value for the type: `tail..MAX`
[INFO] [stderr] 
[INFO] [stderr] error: `X..` range patterns are not supported
[INFO] [stderr]   --> src/optimizer.rs:48:78
[INFO] [stderr]    |
[INFO] [stderr] 48 |       | (Some(Offset(offs_a, ChangeValue(_))), [Offset(offs_b, SetValue(a)), tail..])
[INFO] [stderr]    |                                                                              ^^^^^^ help: try using the maximum value for the type: `tail..MAX`
[INFO] [stderr] 
[INFO] [stderr] error: `X..` range patterns are not supported
[INFO] [stderr]   --> src/optimizer.rs:58:32
[INFO] [stderr]    |
[INFO] [stderr] 58 |       (Some(ref token), [head, tail..]) => {
[INFO] [stderr]    |                                ^^^^^^ help: try using the maximum value for the type: `tail..MAX`
[INFO] [stderr] 
[INFO] [stderr] error: `X..` range patterns are not supported
[INFO] [stderr]   --> src/optimizer.rs:62:21
[INFO] [stderr]    |
[INFO] [stderr] 62 |       (None, [head, tail..]) => (Some(head.clone()), tail),
[INFO] [stderr]    |                     ^^^^^^ help: try using the maximum value for the type: `tail..MAX`
[INFO] [stderr] 
[INFO] [stderr] error[E0425]: cannot find value `tail` in this scope
[INFO] [stderr]   --> src/optimizer.rs:13:45
[INFO] [stderr]    |
[INFO] [stderr] 13 |       (Some(ChangeAddr(a)), [ChangeAddr(b), tail..]) => (Some(ChangeAddr(a + b)), tail),
[INFO] [stderr]    |                                             ^^^^ not found in this scope
[INFO] [stderr] 
[INFO] [stderr] error[E0425]: cannot find value `tail` in this scope
[INFO] [stderr]   --> src/optimizer.rs:13:83
[INFO] [stderr]    |
[INFO] [stderr] 13 |       (Some(ChangeAddr(a)), [ChangeAddr(b), tail..]) => (Some(ChangeAddr(a + b)), tail),
[INFO] [stderr]    |                                                                                   ^^^^ not found in this scope
[INFO] [stderr] 
[INFO] [stderr] error[E0425]: cannot find value `tail` in this scope
[INFO] [stderr]   --> src/optimizer.rs:14:79
[INFO] [stderr]    |
[INFO] [stderr] 14 |       (Some(Offset(offs_a, ChangeValue(a))), [Offset(offs_b, ChangeValue(b)), tail..])
[INFO] [stderr]    |                                                                               ^^^^ not found in this scope
[INFO] [stderr] 
[INFO] [stderr] error[E0425]: cannot find value `tail` in this scope
[INFO] [stderr]   --> src/optimizer.rs:17:65
[INFO] [stderr]    |
[INFO] [stderr] 17 |         (Some(ProgramToken::offs_change_value(*offs_a, a + b)), tail)
[INFO] [stderr]    |                                                                 ^^^^ not found in this scope
[INFO] [stderr] 
[INFO] [stderr] error[E0425]: cannot find value `tail` in this scope
[INFO] [stderr]   --> src/optimizer.rs:21:68
[INFO] [stderr]    |
[INFO] [stderr] 21 |         [Offset(0, ChangeValue(value)), ChangeAddr(addr_offset_b), tail..],
[INFO] [stderr]    |                                                                    ^^^^ not found in this scope
[INFO] [stderr] 
[INFO] [stderr] error[E0425]: cannot find value `tail` in this scope
[INFO] [stderr]   --> src/optimizer.rs:27:11
[INFO] [stderr]    |
[INFO] [stderr] 27 |           tail,
[INFO] [stderr]    |           ^^^^ not found in this scope
[INFO] [stderr] 
[INFO] [stderr] error[E0425]: cannot find value `tail` in this scope
[INFO] [stderr]   --> src/optimizer.rs:38:20
[INFO] [stderr]    |
[INFO] [stderr] 38 |             [head, tail..] => (Some(head.clone()), tail),
[INFO] [stderr]    |                    ^^^^ not found in this scope
[INFO] [stderr] 
[INFO] [stderr] error[E0425]: cannot find value `tail` in this scope
[INFO] [stderr]   --> src/optimizer.rs:38:52
[INFO] [stderr]    |
[INFO] [stderr] 38 |             [head, tail..] => (Some(head.clone()), tail),
[INFO] [stderr]    |                                                    ^^^^ not found in this scope
[INFO] [stderr] 
[INFO] [stderr] error[E0425]: cannot find value `tail` in this scope
[INFO] [stderr]   --> src/optimizer.rs:42:76
[INFO] [stderr]    |
[INFO] [stderr] 42 |       (Some(Offset(offs_a, SetValue(0))), [Offset(offs_b, ChangeValue(a)), tail..])
[INFO] [stderr]    |                                                                            ^^^^ not found in this scope
[INFO] [stderr] 
[INFO] [stderr] error[E0425]: cannot find value `tail` in this scope
[INFO] [stderr]   --> src/optimizer.rs:45:59
[INFO] [stderr]    |
[INFO] [stderr] 45 |         (Some(ProgramToken::offs_set_value(*offs_a, *a)), tail)
[INFO] [stderr]    |                                                           ^^^^ not found in this scope
[INFO] [stderr] 
[INFO] [stderr] error[E0425]: cannot find value `tail` in this scope
[INFO] [stderr]   --> src/optimizer.rs:47:73
[INFO] [stderr]    |
[INFO] [stderr] 47 |       (Some(Offset(offs_a, SetValue(_))), [Offset(offs_b, SetValue(a)), tail..])
[INFO] [stderr]    |                                                                         ^^^^ not found in this scope
[INFO] [stderr] 
[INFO] [stderr] error[E0425]: cannot find value `tail` in this scope
[INFO] [stderr]   --> src/optimizer.rs:48:78
[INFO] [stderr]    |
[INFO] [stderr] 48 |       | (Some(Offset(offs_a, ChangeValue(_))), [Offset(offs_b, SetValue(a)), tail..])
[INFO] [stderr]    |                                                                              ^^^^ not found in this scope
[INFO] [stderr] 
[INFO] [stderr] error[E0425]: cannot find value `tail` in this scope
[INFO] [stderr]   --> src/optimizer.rs:51:59
[INFO] [stderr]    |
[INFO] [stderr] 51 |         (Some(ProgramToken::offs_set_value(*offs_a, *a)), tail)
[INFO] [stderr]    |                                                           ^^^^ not found in this scope
[INFO] [stderr] 
[INFO] [stderr] error[E0425]: cannot find value `tail` in this scope
[INFO] [stderr]   --> src/optimizer.rs:58:32
[INFO] [stderr]    |
[INFO] [stderr] 58 |       (Some(ref token), [head, tail..]) => {
[INFO] [stderr]    |                                ^^^^ not found in this scope
[INFO] [stderr] 
[INFO] [stderr] error[E0425]: cannot find value `tail` in this scope
[INFO] [stderr]   --> src/optimizer.rs:60:30
[INFO] [stderr]    |
[INFO] [stderr] 60 |         (Some(head.clone()), tail)
[INFO] [stderr]    |                              ^^^^ not found in this scope
[INFO] [stderr] 
[INFO] [stderr] error[E0425]: cannot find value `tail` in this scope
[INFO] [stderr]   --> src/optimizer.rs:62:21
[INFO] [stderr]    |
[INFO] [stderr] 62 |       (None, [head, tail..]) => (Some(head.clone()), tail),
[INFO] [stderr]    |                     ^^^^ not found in this scope
[INFO] [stderr] 
[INFO] [stderr] error[E0425]: cannot find value `tail` in this scope
[INFO] [stderr]   --> src/optimizer.rs:62:54
[INFO] [stderr]    |
[INFO] [stderr] 62 |       (None, [head, tail..]) => (Some(head.clone()), tail),
[INFO] [stderr]    |                                                      ^^^^ not found in this scope
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: exclusive range pattern syntax is experimental
[INFO] [stderr]   --> src/optimizer.rs:13:49
[INFO] [stderr]    |
[INFO] [stderr] 13 |       (Some(ChangeAddr(a)), [ChangeAddr(b), tail..]) => (Some(ChangeAddr(a + b)), tail),
[INFO] [stderr]    |                                                 ^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: for more information, see https://github.com/rust-lang/rust/issues/37854
[INFO] [stderr]    = help: add `#![feature(exclusive_range_pattern)]` to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: exclusive range pattern syntax is experimental
[INFO] [stderr]   --> src/optimizer.rs:14:83
[INFO] [stderr]    |
[INFO] [stderr] 14 |       (Some(Offset(offs_a, ChangeValue(a))), [Offset(offs_b, ChangeValue(b)), tail..])
[INFO] [stderr]    |                                                                                   ^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: for more information, see https://github.com/rust-lang/rust/issues/37854
[INFO] [stderr]    = help: add `#![feature(exclusive_range_pattern)]` to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: exclusive range pattern syntax is experimental
[INFO] [stderr]   --> src/optimizer.rs:21:72
[INFO] [stderr]    |
[INFO] [stderr] 21 |         [Offset(0, ChangeValue(value)), ChangeAddr(addr_offset_b), tail..],
[INFO] [stderr]    |                                                                        ^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: for more information, see https://github.com/rust-lang/rust/issues/37854
[INFO] [stderr]    = help: add `#![feature(exclusive_range_pattern)]` to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: exclusive range pattern syntax is experimental
[INFO] [stderr]   --> src/optimizer.rs:38:24
[INFO] [stderr]    |
[INFO] [stderr] 38 |             [head, tail..] => (Some(head.clone()), tail),
[INFO] [stderr]    |                        ^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: for more information, see https://github.com/rust-lang/rust/issues/37854
[INFO] [stderr]    = help: add `#![feature(exclusive_range_pattern)]` to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: exclusive range pattern syntax is experimental
[INFO] [stderr]   --> src/optimizer.rs:42:80
[INFO] [stderr]    |
[INFO] [stderr] 42 |       (Some(Offset(offs_a, SetValue(0))), [Offset(offs_b, ChangeValue(a)), tail..])
[INFO] [stderr]    |                                                                                ^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: for more information, see https://github.com/rust-lang/rust/issues/37854
[INFO] [stderr]    = help: add `#![feature(exclusive_range_pattern)]` to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: exclusive range pattern syntax is experimental
[INFO] [stderr]   --> src/optimizer.rs:47:77
[INFO] [stderr]    |
[INFO] [stderr] 47 |       (Some(Offset(offs_a, SetValue(_))), [Offset(offs_b, SetValue(a)), tail..])
[INFO] [stderr]    |                                                                             ^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: for more information, see https://github.com/rust-lang/rust/issues/37854
[INFO] [stderr]    = help: add `#![feature(exclusive_range_pattern)]` to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: exclusive range pattern syntax is experimental
[INFO] [stderr]   --> src/optimizer.rs:48:82
[INFO] [stderr]    |
[INFO] [stderr] 48 |       | (Some(Offset(offs_a, ChangeValue(_))), [Offset(offs_b, SetValue(a)), tail..])
[INFO] [stderr]    |                                                                                  ^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: for more information, see https://github.com/rust-lang/rust/issues/37854
[INFO] [stderr]    = help: add `#![feature(exclusive_range_pattern)]` to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: exclusive range pattern syntax is experimental
[INFO] [stderr]   --> src/optimizer.rs:58:36
[INFO] [stderr]    |
[INFO] [stderr] 58 |       (Some(ref token), [head, tail..]) => {
[INFO] [stderr]    |                                    ^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: for more information, see https://github.com/rust-lang/rust/issues/37854
[INFO] [stderr]    = help: add `#![feature(exclusive_range_pattern)]` to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: exclusive range pattern syntax is experimental
[INFO] [stderr]   --> src/optimizer.rs:62:25
[INFO] [stderr]    |
[INFO] [stderr] 62 |       (None, [head, tail..]) => (Some(head.clone()), tail),
[INFO] [stderr]    |                         ^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: for more information, see https://github.com/rust-lang/rust/issues/37854
[INFO] [stderr]    = help: add `#![feature(exclusive_range_pattern)]` to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 35 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0425, E0658.
[INFO] [stderr] For more information about an error, try `rustc --explain E0425`.
[INFO] [stderr] error[E0425]: cannot find value `tail` in this scope
[INFO] [stderr]   --> src/optimizer.rs:13:45
[INFO] [stderr]    |
[INFO] [stderr] 13 |       (Some(ChangeAddr(a)), [ChangeAddr(b), tail..]) => (Some(ChangeAddr(a + b)), tail),
[INFO] [stderr]    |                                             ^^^^ not found in this scope
[INFO] [stderr] 
[INFO] [stderr] error[E0425]: cannot find value `tail` in this scope
[INFO] [stderr]   --> src/optimizer.rs:13:83
[INFO] [stderr]    |
[INFO] [stderr] 13 |       (Some(ChangeAddr(a)), [ChangeAddr(b), tail..]) => (Some(ChangeAddr(a + b)), tail),
[INFO] [stderr]    |                                                                                   ^^^^ not found in this scope
[INFO] [stderr] 
[INFO] [stderr] error[E0425]: cannot find value `tail` in this scope
[INFO] [stderr]   --> src/optimizer.rs:14:79
[INFO] [stderr]    |
[INFO] [stderr] 14 |       (Some(Offset(offs_a, ChangeValue(a))), [Offset(offs_b, ChangeValue(b)), tail..])
[INFO] [stderr]    |                                                                               ^^^^ not found in this scope
[INFO] [stderr] 
[INFO] [stderr] error[E0425]: cannot find value `tail` in this scope
[INFO] [stderr]   --> src/optimizer.rs:17:65
[INFO] [stderr]    |
[INFO] [stderr] 17 |         (Some(ProgramToken::offs_change_value(*offs_a, a + b)), tail)
[INFO] [stderr]    |                                                                 ^^^^ not found in this scope
[INFO] [stderr] 
[INFO] [stderr] error[E0425]: cannot find value `tail` in this scope
[INFO] [stderr]   --> src/optimizer.rs:21:68
[INFO] [stderr]    |
[INFO] [stderr] 21 |         [Offset(0, ChangeValue(value)), ChangeAddr(addr_offset_b), tail..],
[INFO] [stderr]    |                                                                    ^^^^ not found in this scope
[INFO] [stderr] 
[INFO] [stderr] error[E0425]: cannot find value `tail` in this scope
[INFO] [stderr]   --> src/optimizer.rs:27:11
[INFO] [stderr]    |
[INFO] [stderr] 27 |           tail,
[INFO] [stderr]    |           ^^^^ not found in this scope
[INFO] [stderr] 
[INFO] [stderr] error: could not compile `bfcrs`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error[E0425]: cannot find value `tail` in this scope
[INFO] [stderr]   --> src/optimizer.rs:38:20
[INFO] [stderr]    |
[INFO] [stderr] 38 |             [head, tail..] => (Some(head.clone()), tail),
[INFO] [stderr]    |                    ^^^^ not found in this scope
[INFO] [stderr] 
[INFO] [stderr] error[E0425]: cannot find value `tail` in this scope
[INFO] [stderr]   --> src/optimizer.rs:38:52
[INFO] [stderr]    |
[INFO] [stderr] 38 |             [head, tail..] => (Some(head.clone()), tail),
[INFO] [stderr]    |                                                    ^^^^ not found in this scope
[INFO] [stderr] 
[INFO] [stderr] error[E0425]: cannot find value `tail` in this scope
[INFO] [stderr]   --> src/optimizer.rs:42:76
[INFO] [stderr]    |
[INFO] [stderr] 42 |       (Some(Offset(offs_a, SetValue(0))), [Offset(offs_b, ChangeValue(a)), tail..])
[INFO] [stderr]    |                                                                            ^^^^ not found in this scope
[INFO] [stderr] 
[INFO] [stderr] error[E0425]: cannot find value `tail` in this scope
[INFO] [stderr]   --> src/optimizer.rs:45:59
[INFO] [stderr]    |
[INFO] [stderr] 45 |         (Some(ProgramToken::offs_set_value(*offs_a, *a)), tail)
[INFO] [stderr]    |                                                           ^^^^ not found in this scope
[INFO] [stderr] 
[INFO] [stderr] error[E0425]: cannot find value `tail` in this scope
[INFO] [stderr]   --> src/optimizer.rs:47:73
[INFO] [stderr]    |
[INFO] [stderr] 47 |       (Some(Offset(offs_a, SetValue(_))), [Offset(offs_b, SetValue(a)), tail..])
[INFO] [stderr]    |                                                                         ^^^^ not found in this scope
[INFO] [stderr] 
[INFO] [stderr] error[E0425]: cannot find value `tail` in this scope
[INFO] [stderr]   --> src/optimizer.rs:48:78
[INFO] [stderr]    |
[INFO] [stderr] 48 |       | (Some(Offset(offs_a, ChangeValue(_))), [Offset(offs_b, SetValue(a)), tail..])
[INFO] [stderr]    |                                                                              ^^^^ not found in this scope
[INFO] [stderr] 
[INFO] [stderr] error[E0425]: cannot find value `tail` in this scope
[INFO] [stderr]   --> src/optimizer.rs:51:59
[INFO] [stderr]    |
[INFO] [stderr] 51 |         (Some(ProgramToken::offs_set_value(*offs_a, *a)), tail)
[INFO] [stderr]    |                                                           ^^^^ not found in this scope
[INFO] [stderr] 
[INFO] [stderr] error[E0425]: cannot find value `tail` in this scope
[INFO] [stderr]   --> src/optimizer.rs:58:32
[INFO] [stderr]    |
[INFO] [stderr] 58 |       (Some(ref token), [head, tail..]) => {
[INFO] [stderr]    |                                ^^^^ not found in this scope
[INFO] [stderr] 
[INFO] [stderr] error[E0425]: cannot find value `tail` in this scope
[INFO] [stderr]   --> src/optimizer.rs:60:30
[INFO] [stderr]    |
[INFO] [stderr] 60 |         (Some(head.clone()), tail)
[INFO] [stderr]    |                              ^^^^ not found in this scope
[INFO] [stderr] 
[INFO] [stderr] error[E0425]: cannot find value `tail` in this scope
[INFO] [stderr]   --> src/optimizer.rs:62:21
[INFO] [stderr]    |
[INFO] [stderr] 62 |       (None, [head, tail..]) => (Some(head.clone()), tail),
[INFO] [stderr]    |                     ^^^^ not found in this scope
[INFO] [stderr] 
[INFO] [stderr] error[E0425]: cannot find value `tail` in this scope
[INFO] [stderr]   --> src/optimizer.rs:62:54
[INFO] [stderr]    |
[INFO] [stderr] 62 |       (None, [head, tail..]) => (Some(head.clone()), tail),
[INFO] [stderr]    |                                                      ^^^^ not found in this scope
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: exclusive range pattern syntax is experimental
[INFO] [stderr]   --> src/optimizer.rs:13:49
[INFO] [stderr]    |
[INFO] [stderr] 13 |       (Some(ChangeAddr(a)), [ChangeAddr(b), tail..]) => (Some(ChangeAddr(a + b)), tail),
[INFO] [stderr]    |                                                 ^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: for more information, see https://github.com/rust-lang/rust/issues/37854
[INFO] [stderr]    = help: add `#![feature(exclusive_range_pattern)]` to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: exclusive range pattern syntax is experimental
[INFO] [stderr]   --> src/optimizer.rs:14:83
[INFO] [stderr]    |
[INFO] [stderr] 14 |       (Some(Offset(offs_a, ChangeValue(a))), [Offset(offs_b, ChangeValue(b)), tail..])
[INFO] [stderr]    |                                                                                   ^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: for more information, see https://github.com/rust-lang/rust/issues/37854
[INFO] [stderr]    = help: add `#![feature(exclusive_range_pattern)]` to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: exclusive range pattern syntax is experimental
[INFO] [stderr]   --> src/optimizer.rs:21:72
[INFO] [stderr]    |
[INFO] [stderr] 21 |         [Offset(0, ChangeValue(value)), ChangeAddr(addr_offset_b), tail..],
[INFO] [stderr]    |                                                                        ^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: for more information, see https://github.com/rust-lang/rust/issues/37854
[INFO] [stderr]    = help: add `#![feature(exclusive_range_pattern)]` to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: exclusive range pattern syntax is experimental
[INFO] [stderr]   --> src/optimizer.rs:38:24
[INFO] [stderr]    |
[INFO] [stderr] 38 |             [head, tail..] => (Some(head.clone()), tail),
[INFO] [stderr]    |                        ^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: for more information, see https://github.com/rust-lang/rust/issues/37854
[INFO] [stderr]    = help: add `#![feature(exclusive_range_pattern)]` to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: exclusive range pattern syntax is experimental
[INFO] [stderr]   --> src/optimizer.rs:42:80
[INFO] [stderr]    |
[INFO] [stderr] 42 |       (Some(Offset(offs_a, SetValue(0))), [Offset(offs_b, ChangeValue(a)), tail..])
[INFO] [stderr]    |                                                                                ^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: for more information, see https://github.com/rust-lang/rust/issues/37854
[INFO] [stderr]    = help: add `#![feature(exclusive_range_pattern)]` to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: exclusive range pattern syntax is experimental
[INFO] [stderr]   --> src/optimizer.rs:47:77
[INFO] [stderr]    |
[INFO] [stderr] 47 |       (Some(Offset(offs_a, SetValue(_))), [Offset(offs_b, SetValue(a)), tail..])
[INFO] [stderr]    |                                                                             ^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: for more information, see https://github.com/rust-lang/rust/issues/37854
[INFO] [stderr]    = help: add `#![feature(exclusive_range_pattern)]` to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: exclusive range pattern syntax is experimental
[INFO] [stderr]   --> src/optimizer.rs:48:82
[INFO] [stderr]    |
[INFO] [stderr] 48 |       | (Some(Offset(offs_a, ChangeValue(_))), [Offset(offs_b, SetValue(a)), tail..])
[INFO] [stderr]    |                                                                                  ^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: for more information, see https://github.com/rust-lang/rust/issues/37854
[INFO] [stderr]    = help: add `#![feature(exclusive_range_pattern)]` to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: exclusive range pattern syntax is experimental
[INFO] [stderr]   --> src/optimizer.rs:58:36
[INFO] [stderr]    |
[INFO] [stderr] 58 |       (Some(ref token), [head, tail..]) => {
[INFO] [stderr]    |                                    ^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: for more information, see https://github.com/rust-lang/rust/issues/37854
[INFO] [stderr]    = help: add `#![feature(exclusive_range_pattern)]` to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: exclusive range pattern syntax is experimental
[INFO] [stderr]   --> src/optimizer.rs:62:25
[INFO] [stderr]    |
[INFO] [stderr] 62 |       (None, [head, tail..]) => (Some(head.clone()), tail),
[INFO] [stderr]    |                         ^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: for more information, see https://github.com/rust-lang/rust/issues/37854
[INFO] [stderr]    = help: add `#![feature(exclusive_range_pattern)]` to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 35 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0425, E0658.
[INFO] [stderr] For more information about an error, try `rustc --explain E0425`.
[INFO] [stderr] error: could not compile `bfcrs`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "9db4e9fe24475fb8d848c01bb7a9dbfd50c7518c8624bba3166234ec4d96639a"`
[INFO] running `"docker" "rm" "-f" "9db4e9fe24475fb8d848c01bb7a9dbfd50c7518c8624bba3166234ec4d96639a"`
[INFO] [stdout] 9db4e9fe24475fb8d848c01bb7a9dbfd50c7518c8624bba3166234ec4d96639a