[INFO] cloning repository https://github.com/blockexplorer/issueboss
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/blockexplorer/issueboss" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fblockexplorer%2Fissueboss", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fblockexplorer%2Fissueboss'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 8dab96da3684dbf98893f42988c5326673be7d77
[INFO] testing blockexplorer/issueboss against 1.60.0 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fblockexplorer%2Fissueboss" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/blockexplorer/issueboss on toolchain 1.60.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/blockexplorer/issueboss
[INFO] finished tweaking git repo https://github.com/blockexplorer/issueboss
[INFO] tweaked toml for git repo https://github.com/blockexplorer/issueboss written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/blockexplorer/issueboss already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded structopt-derive v0.2.3
[INFO] [stderr]   Downloaded structopt v0.2.3
[INFO] [stderr]   Downloaded toml_edit v0.1.1
[INFO] [stderr]   Downloaded combine v3.0.0-alpha.2
[INFO] [stderr]   Downloaded syn v0.12.13
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+1.60.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7e60459c55a2fcf1b7fe9e8f81d87c2353af48410b8c9de46b00dba3ea0cf2ed
[INFO] running `Command { std: "docker" "start" "-a" "7e60459c55a2fcf1b7fe9e8f81d87c2353af48410b8c9de46b00dba3ea0cf2ed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7e60459c55a2fcf1b7fe9e8f81d87c2353af48410b8c9de46b00dba3ea0cf2ed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7e60459c55a2fcf1b7fe9e8f81d87c2353af48410b8c9de46b00dba3ea0cf2ed", kill_on_drop: false }`
[INFO] [stdout] 7e60459c55a2fcf1b7fe9e8f81d87c2353af48410b8c9de46b00dba3ea0cf2ed
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+1.60.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] af08966deae782675f094b85f1a12d6b978d9ae4205565719f95b64931d1b1ef
[INFO] running `Command { std: "docker" "start" "-a" "af08966deae782675f094b85f1a12d6b978d9ae4205565719f95b64931d1b1ef", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.36
[INFO] [stderr]    Compiling num-traits v0.2.2
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling unicode-width v0.1.4
[INFO] [stderr]    Compiling ascii v0.7.1
[INFO] [stderr]    Compiling strsim v0.7.0
[INFO] [stderr]    Compiling pulldown-cmark v0.1.2
[INFO] [stderr]    Compiling vec_map v0.8.0
[INFO] [stderr]    Compiling bitflags v1.0.1
[INFO] [stderr]    Compiling byteorder v1.2.1
[INFO] [stderr]    Compiling ansi_term v0.10.2
[INFO] [stderr]    Compiling getopts v0.2.17
[INFO] [stderr]    Compiling bitflags v0.9.1
[INFO] [stderr]    Compiling linked-hash-map v0.4.2
[INFO] [stderr]    Compiling yansi v0.4.0
[INFO] [stderr]    Compiling textwrap v0.9.0
[INFO] [stderr]    Compiling proc-macro2 v0.2.3
[INFO] [stderr]    Compiling combine v3.0.0-alpha.2
[INFO] [stderr]    Compiling time v0.1.39
[INFO] [stderr]    Compiling atty v0.2.6
[INFO] [stderr]    Compiling quote v0.4.2
[INFO] [stderr]    Compiling clap v2.30.0
[INFO] [stderr]    Compiling num-integer v0.1.36
[INFO] [stderr]    Compiling syn v0.12.13
[INFO] [stderr]    Compiling num-iter v0.1.35
[INFO] [stderr]    Compiling num v0.1.42
[INFO] [stderr]    Compiling chrono v0.4.0
[INFO] [stderr]    Compiling structopt-derive v0.2.3
[INFO] [stderr]    Compiling toml_edit v0.1.1
[INFO] [stdout] error[E0502]: cannot borrow `v` as immutable because it is also borrowed as mutable
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/toml_edit-0.1.1/src/index.rs:54:65
[INFO] [stdout]    |
[INFO] [stdout] 44 |       fn index_or_insert<'v>(&self, v: &'v mut Item) -> &'v mut Item {
[INFO] [stdout]    |                          -- lifetime `'v` defined here
[INFO] [stdout] 45 | /         match *v {
[INFO] [stdout] 46 | |             Item::ArrayOfTables(ref mut vec) => {
[INFO] [stdout] 47 | |                 vec.values.get_mut(*self).expect("index out of bounds")
[INFO] [stdout] 48 | |             }
[INFO] [stdout] 49 | |             Item::Value(ref mut a) if a.is_array() => a.as_array_mut()
[INFO] [stdout]    | |                         --------- mutable borrow occurs here
[INFO] [stdout] ...  |
[INFO] [stdout] 54 | |             _ => panic!("cannot access index {} in {:?}", self, v),
[INFO] [stdout]    | |                                                                 ^ immutable borrow occurs here
[INFO] [stdout] 55 | |         }
[INFO] [stdout]    | |_________- returning this value requires that `v.0` is borrowed for `'v`
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `$crate::const_format_args` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `toml_edit` due to 3 previous errors
[INFO] [stdout] error[E0502]: cannot borrow `v` as immutable because it is also borrowed as mutable
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/toml_edit-0.1.1/src/index.rs:85:63
[INFO] [stdout]    |
[INFO] [stdout] 68 |       fn index_or_insert<'v>(&self, v: &'v mut Item) -> &'v mut Item {
[INFO] [stdout]    |                          -- lifetime `'v` defined here
[INFO] [stdout] ...
[INFO] [stdout] 75 | /         match *v {
[INFO] [stdout] 76 | |             Item::Table(ref mut t) => t.entry(self).or_insert(Item::None),
[INFO] [stdout] 77 | |             Item::Value(ref mut v) if v.is_inline_table() => {
[INFO] [stdout]    | |                         --------- mutable borrow occurs here
[INFO] [stdout] 78 | |                 &mut v.as_inline_table_mut()
[INFO] [stdout] ...  |
[INFO] [stdout] 85 | |             _ => panic!("cannot access key {} in {:?}", self, v),
[INFO] [stdout]    | |                                                               ^ immutable borrow occurs here
[INFO] [stdout] 86 | |         }
[INFO] [stdout]    | |_________- returning this value requires that `v.0` is borrowed for `'v`
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `$crate::const_format_args` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0502`.
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "af08966deae782675f094b85f1a12d6b978d9ae4205565719f95b64931d1b1ef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "af08966deae782675f094b85f1a12d6b978d9ae4205565719f95b64931d1b1ef", kill_on_drop: false }`
[INFO] [stdout] af08966deae782675f094b85f1a12d6b978d9ae4205565719f95b64931d1b1ef