[INFO] updating cached repository https://github.com/Ameliorate/track8-program
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/big/crater/work/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] b91c4ee4106de486ddbfcb61bdabc385d1a4c12c
[INFO] testing Ameliorate/track8-program against 1.38.0 for beta-1.39-1
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2FAmeliorate%2Ftrack8-program" "work/builds/worker-9/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-9/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Ameliorate/track8-program on toolchain 1.38.0
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/Ameliorate/track8-program
[INFO] finished tweaking git repo https://github.com/Ameliorate/track8-program
[INFO] tweaked toml for git repo https://github.com/Ameliorate/track8-program written to work/builds/worker-9/source/Cargo.toml
[INFO] crate git repo https://github.com/Ameliorate/track8-program already has a lockfile, it will not be regenerated
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-9/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.38.0" "build" "--frozen"`
[INFO] [stdout] ec940e758d0cce966bf64ed430191d5ea688e23c804722fcbdf2c4cf49bff67b
[INFO] running `"docker" "start" "-a" "ec940e758d0cce966bf64ed430191d5ea688e23c804722fcbdf2c4cf49bff67b"`
[INFO] [stderr]    Compiling atty v0.2.10
[INFO] [stderr]    Compiling derive_more v0.9.0
[INFO] [stderr]    Compiling clap v2.31.2
[INFO] [stderr]    Compiling track8-program v1.0.0 (/opt/rustwide/workdir)
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stderr]  --> src/lib.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(try_from)]#[macro_use]extern crate derive_more;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]   --> src/lib.rs:34:77
[INFO] [stderr]    |
[INFO] [stderr] 34 |   S::Stack{ref buf}=>{let mut b:Vec<C>=buf.clone().into();match c.into(){'0'...'9'=>{b.push(c);ns=S::Stack{buf:b.into()}}
[INFO] [stderr]    |                                                                             ^^^ help: use `..=` for an inclusive range
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(ellipsis_inclusive_range_patterns)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]   --> src/lib.rs:37:76
[INFO] [stderr]    |
[INFO] [stderr] 37 |   S::Read{ref buf}=>{let mut b:Vec<C>=buf.clone().into();match c.into(){'0'...'9'=>{b.push(c);ns=S::Read{buf:b.into()}}
[INFO] [stderr]    |                                                                            ^^^ help: use `..=` for an inclusive range
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]   --> src/lib.rs:40:77
[INFO] [stderr]    |
[INFO] [stderr] 40 |   S::Write{ref buf}=>{let mut b:Vec<C>=buf.clone().into();match c.into(){'0'...'9'=>{b.push(c);ns=S::Write{buf:b.into()}}
[INFO] [stderr]    |                                                                             ^^^ help: use `..=` for an inclusive range
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0554`.
[INFO] [stderr] error: Could not compile `track8-program`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "ec940e758d0cce966bf64ed430191d5ea688e23c804722fcbdf2c4cf49bff67b"`
[INFO] running `"docker" "rm" "-f" "ec940e758d0cce966bf64ed430191d5ea688e23c804722fcbdf2c4cf49bff67b"`
[INFO] [stdout] ec940e758d0cce966bf64ed430191d5ea688e23c804722fcbdf2c4cf49bff67b