[INFO] fetching crate bstring_macros 0.1.0...
[INFO] checking bstring_macros-0.1.0 against master#c2f2db79ca3024f68d22b45aa22b570775c2c4ad for pr-124157
[INFO] extracting crate bstring_macros 0.1.0 into /workspace/builds/worker-1-tc1/source
[INFO] validating manifest of crates.io crate bstring_macros 0.1.0 on toolchain c2f2db79ca3024f68d22b45aa22b570775c2c4ad
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c2f2db79ca3024f68d22b45aa22b570775c2c4ad" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate bstring_macros 0.1.0
[INFO] finished tweaking crates.io crate bstring_macros 0.1.0
[INFO] tweaked toml for crates.io crate bstring_macros 0.1.0 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c2f2db79ca3024f68d22b45aa22b570775c2c4ad" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 10 packages to latest compatible versions
[INFO] [stderr]       Adding proc-macro-hack v0.3.3 (latest: v0.5.20+deprecated)
[INFO] [stderr]       Adding proc-macro-hack-impl v0.3.3 (latest: v0.4.3)
[INFO] [stderr]       Adding quote v0.3.15 (latest: v1.0.36)
[INFO] [stderr]       Adding syn v0.11.11 (latest: v2.0.60)
[INFO] [stderr]       Adding unicode-xid v0.0.4 (latest: v0.2.4)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c2f2db79ca3024f68d22b45aa22b570775c2c4ad" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded bstring_macros_hack v0.1.0
[INFO] [stderr]   Downloaded synom v0.11.3
[INFO] [stderr]   Downloaded bstring v0.1.0
[INFO] [stderr]   Downloaded unicode-xid v0.0.4
[INFO] [stderr]   Downloaded proc-macro-hack-impl v0.3.3
[INFO] [stderr]   Downloaded proc-macro-hack v0.3.3
[INFO] [stderr]   Downloaded ref_slice v1.2.1
[INFO] [stderr]   Downloaded syn v0.11.11
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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@sha256:99613afd962a8cfa530ec1899472a458bd015a1ab0af876cf7eb06f6006d81ea" "/opt/rustwide/cargo-home/bin/cargo" "+c2f2db79ca3024f68d22b45aa22b570775c2c4ad" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6d6a2f20b9dc5a48d56ad3f291aa76f9bd28e204d46966c6d9638895470db8d1
[INFO] running `Command { std: "docker" "start" "-a" "6d6a2f20b9dc5a48d56ad3f291aa76f9bd28e204d46966c6d9638895470db8d1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6d6a2f20b9dc5a48d56ad3f291aa76f9bd28e204d46966c6d9638895470db8d1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6d6a2f20b9dc5a48d56ad3f291aa76f9bd28e204d46966c6d9638895470db8d1", kill_on_drop: false }`
[INFO] [stdout] 6d6a2f20b9dc5a48d56ad3f291aa76f9bd28e204d46966c6d9638895470db8d1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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" "-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@sha256:99613afd962a8cfa530ec1899472a458bd015a1ab0af876cf7eb06f6006d81ea" "/opt/rustwide/cargo-home/bin/cargo" "+c2f2db79ca3024f68d22b45aa22b570775c2c4ad" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0d55c5c7c511b9dadc03cfdd467926e3a48d8be5370207941fa79cac8fb853be
[INFO] running `Command { std: "docker" "start" "-a" "0d55c5c7c511b9dadc03cfdd467926e3a48d8be5370207941fa79cac8fb853be", kill_on_drop: false }`
[INFO] [stderr]    Compiling unicode-xid v0.0.4
[INFO] [stderr]    Compiling proc-macro-hack-impl v0.3.3
[INFO] [stderr]    Compiling quote v0.3.15
[INFO] [stderr]    Compiling ref_slice v1.2.1
[INFO] [stderr]    Compiling bstring v0.1.0
[INFO] [stderr]    Compiling synom v0.11.3
[INFO] [stderr]    Compiling syn v0.11.11
[INFO] [stderr]    Compiling proc-macro-hack v0.3.3
[INFO] [stderr]    Compiling bstring_macros_hack v0.1.0
[INFO] [stderr]     Checking bstring_macros v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: proc-macro derive panicked
[INFO] [stdout]   --> src/lib.rs:53:27
[INFO] [stdout]    |
[INFO] [stdout] 53 |         let bs: BString = bformat!("Hello, world!");
[INFO] [stdout]    |                           ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: message: assertion failed: source.starts_with(prefix)
[INFO] [stdout]    = note: this error originates in the macro `bformat_args` which comes from the expansion of the macro `bformat` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: proc-macro derive panicked
[INFO] [stdout]   --> src/lib.rs:62:20
[INFO] [stdout]    |
[INFO] [stdout] 62 |         assert_eq!(bformat!("foo {}", a), "foo bar");
[INFO] [stdout]    |                    ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: message: assertion failed: source.starts_with(prefix)
[INFO] [stdout]    = note: this error originates in the macro `bformat_args` which comes from the expansion of the macro `bformat` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: proc-macro derive panicked
[INFO] [stdout]   --> src/lib.rs:63:20
[INFO] [stdout]    |
[INFO] [stdout] 63 |         assert_eq!(bformat!("foo {} baz", a), "foo bar baz");
[INFO] [stdout]    |                    ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: message: assertion failed: source.starts_with(prefix)
[INFO] [stdout]    = note: this error originates in the macro `bformat_args` which comes from the expansion of the macro `bformat` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: proc-macro derive panicked
[INFO] [stdout]   --> src/lib.rs:64:20
[INFO] [stdout]    |
[INFO] [stdout] 64 |         assert_eq!(bformat!("foo {} {}", a, b), "foo bar baz");
[INFO] [stdout]    |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: message: assertion failed: source.starts_with(prefix)
[INFO] [stdout]    = note: this error originates in the macro `bformat_args` which comes from the expansion of the macro `bformat` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: proc-macro derive panicked
[INFO] [stdout]   --> src/lib.rs:66:20
[INFO] [stdout]    |
[INFO] [stdout] 66 |         assert_eq!(bformat!("foo {} {} {}", a, 123, b), "foo bar 123 baz");
[INFO] [stdout]    |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: message: assertion failed: source.starts_with(prefix)
[INFO] [stdout]    = note: this error originates in the macro `bformat_args` which comes from the expansion of the macro `bformat` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: proc-macro derive panicked
[INFO] [stdout]   --> src/lib.rs:80:20
[INFO] [stdout]    |
[INFO] [stdout] 80 |         assert_eq!(bformat!("{} {} {}{}{}", a, b, c, d, e), "foo foo 123");
[INFO] [stdout]    |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: message: assertion failed: source.starts_with(prefix)
[INFO] [stdout]    = note: this error originates in the macro `bformat_args` which comes from the expansion of the macro `bformat` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: proc-macro derive panicked
[INFO] [stdout]   --> src/lib.rs:85:20
[INFO] [stdout]    |
[INFO] [stdout] 85 |         assert_eq!(bformat!(b"\xff{}\xff", 123), b"\xff123\xff");
[INFO] [stdout]    |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: message: assertion failed: source.starts_with(prefix)
[INFO] [stdout]    = note: this error originates in the macro `bformat_args` which comes from the expansion of the macro `bformat` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: proc-macro derive panicked
[INFO] [stdout]   --> src/lib.rs:90:20
[INFO] [stdout]    |
[INFO] [stdout] 90 |         assert_eq!(bformat!("foo {{bar}}"), "foo {bar}");
[INFO] [stdout]    |                    ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: message: assertion failed: source.starts_with(prefix)
[INFO] [stdout]    = note: this error originates in the macro `bformat_args` which comes from the expansion of the macro `bformat` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: proc-macro derive panicked
[INFO] [stdout]   --> src/lib.rs:98:20
[INFO] [stdout]    |
[INFO] [stdout] 98 |         assert_eq!(bformat!("foo {bar}", bar = a), "foo bar");
[INFO] [stdout]    |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: message: assertion failed: source.starts_with(prefix)
[INFO] [stdout]    = note: this error originates in the macro `bformat_args` which comes from the expansion of the macro `bformat` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: proc-macro derive panicked
[INFO] [stdout]   --> src/lib.rs:99:20
[INFO] [stdout]    |
[INFO] [stdout] 99 |         assert_eq!(bformat!("foo {bar} {baz}", bar = a, baz = b), "foo bar baz");
[INFO] [stdout]    |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: message: assertion failed: source.starts_with(prefix)
[INFO] [stdout]    = note: this error originates in the macro `bformat_args` which comes from the expansion of the macro `bformat` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: proc-macro derive panicked
[INFO] [stdout]    --> src/lib.rs:100:20
[INFO] [stdout]     |
[INFO] [stdout] 100 |           assert_eq!(bformat!("foo {bar} {n} {baz}",
[INFO] [stdout]     |  ____________________^
[INFO] [stdout] 101 | |             bar = a, baz = b, n = 123), "foo bar 123 baz");
[INFO] [stdout]     | |______________________________________^
[INFO] [stdout]     |
[INFO] [stdout]     = help: message: assertion failed: source.starts_with(prefix)
[INFO] [stdout]     = note: this error originates in the macro `bformat_args` which comes from the expansion of the macro `bformat` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: proc-macro derive panicked
[INFO] [stdout]    --> src/lib.rs:111:13
[INFO] [stdout]     |
[INFO] [stdout] 111 |             bformat!("sup {}", args)
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: message: assertion failed: source.starts_with(prefix)
[INFO] [stdout]     = note: this error originates in the macro `bformat_args` which comes from the expansion of the macro `bformat` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: proc-macro derive panicked
[INFO] [stdout]    --> src/lib.rs:114:24
[INFO] [stdout]     |
[INFO] [stdout] 114 |         assert_eq!(fmt(bformat_args!("{}", 123)), "sup 123");
[INFO] [stdout]     |                        ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: message: assertion failed: source.starts_with(prefix)
[INFO] [stdout]     = note: this error originates in the macro `bformat_args` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: proc-macro derive panicked
[INFO] [stdout]    --> src/lib.rs:119:20
[INFO] [stdout]     |
[INFO] [stdout] 119 |         assert_eq!(bformat!("sup {}", format_args!("{:02x}", 10)), "sup 0a");
[INFO] [stdout]     |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: message: assertion failed: source.starts_with(prefix)
[INFO] [stdout]     = note: this error originates in the macro `bformat_args` which comes from the expansion of the macro `bformat` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find macro `proc_macro_call` in this scope
[INFO] [stdout]    --> src/lib.rs:119:20
[INFO] [stdout]     |
[INFO] [stdout] 119 |         assert_eq!(bformat!("sup {}", format_args!("{:02x}", 10)), "sup 0a");
[INFO] [stdout]     |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `bformat_args` which comes from the expansion of the macro `bformat` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find macro `proc_macro_call` in this scope
[INFO] [stdout]    --> src/lib.rs:114:24
[INFO] [stdout]     |
[INFO] [stdout] 114 |         assert_eq!(fmt(bformat_args!("{}", 123)), "sup 123");
[INFO] [stdout]     |                        ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `bformat_args` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find macro `proc_macro_call` in this scope
[INFO] [stdout]    --> src/lib.rs:111:13
[INFO] [stdout]     |
[INFO] [stdout] 111 |             bformat!("sup {}", args)
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `bformat_args` which comes from the expansion of the macro `bformat` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find macro `proc_macro_call` in this scope
[INFO] [stdout]    --> src/lib.rs:100:20
[INFO] [stdout]     |
[INFO] [stdout] 100 |           assert_eq!(bformat!("foo {bar} {n} {baz}",
[INFO] [stdout]     |  ____________________^
[INFO] [stdout] 101 | |             bar = a, baz = b, n = 123), "foo bar 123 baz");
[INFO] [stdout]     | |______________________________________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `bformat_args` which comes from the expansion of the macro `bformat` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find macro `proc_macro_call` in this scope
[INFO] [stdout]   --> src/lib.rs:99:20
[INFO] [stdout]    |
[INFO] [stdout] 99 |         assert_eq!(bformat!("foo {bar} {baz}", bar = a, baz = b), "foo bar baz");
[INFO] [stdout]    |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `bformat_args` which comes from the expansion of the macro `bformat` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find macro `proc_macro_call` in this scope
[INFO] [stdout]   --> src/lib.rs:98:20
[INFO] [stdout]    |
[INFO] [stdout] 98 |         assert_eq!(bformat!("foo {bar}", bar = a), "foo bar");
[INFO] [stdout]    |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `bformat_args` which comes from the expansion of the macro `bformat` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find macro `proc_macro_call` in this scope
[INFO] [stdout]   --> src/lib.rs:90:20
[INFO] [stdout]    |
[INFO] [stdout] 90 |         assert_eq!(bformat!("foo {{bar}}"), "foo {bar}");
[INFO] [stdout]    |                    ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `bformat_args` which comes from the expansion of the macro `bformat` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find macro `proc_macro_call` in this scope
[INFO] [stdout]   --> src/lib.rs:85:20
[INFO] [stdout]    |
[INFO] [stdout] 85 |         assert_eq!(bformat!(b"\xff{}\xff", 123), b"\xff123\xff");
[INFO] [stdout]    |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `bformat_args` which comes from the expansion of the macro `bformat` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find macro `proc_macro_call` in this scope
[INFO] [stdout]   --> src/lib.rs:80:20
[INFO] [stdout]    |
[INFO] [stdout] 80 |         assert_eq!(bformat!("{} {} {}{}{}", a, b, c, d, e), "foo foo 123");
[INFO] [stdout]    |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `bformat_args` which comes from the expansion of the macro `bformat` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find macro `proc_macro_call` in this scope
[INFO] [stdout]   --> src/lib.rs:66:20
[INFO] [stdout]    |
[INFO] [stdout] 66 |         assert_eq!(bformat!("foo {} {} {}", a, 123, b), "foo bar 123 baz");
[INFO] [stdout]    |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `bformat_args` which comes from the expansion of the macro `bformat` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find macro `proc_macro_call` in this scope
[INFO] [stdout]   --> src/lib.rs:64:20
[INFO] [stdout]    |
[INFO] [stdout] 64 |         assert_eq!(bformat!("foo {} {}", a, b), "foo bar baz");
[INFO] [stdout]    |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `bformat_args` which comes from the expansion of the macro `bformat` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find macro `proc_macro_call` in this scope
[INFO] [stdout]   --> src/lib.rs:63:20
[INFO] [stdout]    |
[INFO] [stdout] 63 |         assert_eq!(bformat!("foo {} baz", a), "foo bar baz");
[INFO] [stdout]    |                    ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `bformat_args` which comes from the expansion of the macro `bformat` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find macro `proc_macro_call` in this scope
[INFO] [stdout]   --> src/lib.rs:62:20
[INFO] [stdout]    |
[INFO] [stdout] 62 |         assert_eq!(bformat!("foo {}", a), "foo bar");
[INFO] [stdout]    |                    ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `bformat_args` which comes from the expansion of the macro `bformat` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find macro `proc_macro_call` in this scope
[INFO] [stdout]   --> src/lib.rs:53:27
[INFO] [stdout]    |
[INFO] [stdout] 53 |         let bs: BString = bformat!("Hello, world!");
[INFO] [stdout]    |                           ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `bformat_args` which comes from the expansion of the macro `bformat` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 28 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `bstring_macros` (lib test) due to 29 previous errors
[INFO] running `Command { std: "docker" "inspect" "0d55c5c7c511b9dadc03cfdd467926e3a48d8be5370207941fa79cac8fb853be", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0d55c5c7c511b9dadc03cfdd467926e3a48d8be5370207941fa79cac8fb853be", kill_on_drop: false }`
[INFO] [stdout] 0d55c5c7c511b9dadc03cfdd467926e3a48d8be5370207941fa79cac8fb853be
