[INFO] fetching crate writeup 1.0.2...
[INFO] testing writeup-1.0.2 against 1.91.0 for beta-1.92-2
[INFO] extracting crate writeup 1.0.2 into /workspace/builds/worker-2-tc1/source
[INFO] started tweaking crates.io crate writeup 1.0.2
[INFO] finished tweaking crates.io crate writeup 1.0.2
[INFO] tweaked toml for crates.io crate writeup 1.0.2 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate writeup 1.0.2 on toolchain 1.91.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.91.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate writeup 1.0.2 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" "+1.91.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded serde_json v1.0.41
[INFO] [stderr]   Downloaded runtime-fmt v0.4.1
[INFO] [stderr]   Downloaded serde_derive v1.0.102
[INFO] [stderr]   Downloaded serde v1.0.102
[INFO] [stderr]   Downloaded syn v1.0.8
[INFO] [stderr]   Downloaded libc v0.2.65
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 52944c8b97d9f74fe8e4f7c648db1d11950b8d93b605ba63ac1431cc28a8c34f
[INFO] running `Command { std: "docker" "start" "-a" "52944c8b97d9f74fe8e4f7c648db1d11950b8d93b605ba63ac1431cc28a8c34f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "52944c8b97d9f74fe8e4f7c648db1d11950b8d93b605ba63ac1431cc28a8c34f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "52944c8b97d9f74fe8e4f7c648db1d11950b8d93b605ba63ac1431cc28a8c34f", kill_on_drop: false }`
[INFO] [stdout] 52944c8b97d9f74fe8e4f7c648db1d11950b8d93b605ba63ac1431cc28a8c34f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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=warn" "-e" "RUSTDOCFLAGS=--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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8ad6bfb4f88a161896daf45048c459092728dc500ed9279890af885143acdcea
[INFO] running `Command { std: "docker" "start" "-a" "8ad6bfb4f88a161896daf45048c459092728dc500ed9279890af885143acdcea", kill_on_drop: false }`
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.6
[INFO] [stderr]    Compiling libc v0.2.65
[INFO] [stderr]    Compiling serde v1.0.102
[INFO] [stderr]    Compiling syn v1.0.8
[INFO] [stderr]    Compiling ryu v1.0.2
[INFO] [stderr]    Compiling unicode-width v0.1.6
[INFO] [stderr]    Compiling itoa v0.4.4
[INFO] [stderr]    Compiling vec_map v0.8.1
[INFO] [stderr]    Compiling runtime-fmt v0.4.1
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stdout] error[E0432]: unresolved import `std::fmt::ArgumentV1`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/runtime-fmt-0.4.1/src/lib.rs:38:33
[INFO] [stdout]    |
[INFO] [stdout] 38 | use std::fmt::{self, Arguments, ArgumentV1};
[INFO] [stdout]    |                                 ^^^^^^^^^^
[INFO] [stdout]    |                                 |
[INFO] [stdout]    |                                 no `ArgumentV1` in `fmt`
[INFO] [stdout]    |                                 help: a similar name exists in the module: `Arguments`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `std::fmt::rt`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/runtime-fmt-0.4.1/src/lib.rs:39:15
[INFO] [stdout]    |
[INFO] [stdout] 39 | use std::fmt::rt::v1;
[INFO] [stdout]    |               ^^ could not find `rt` in `fmt`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: could not find `ArgumentV1` in `fmt`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/runtime-fmt-0.4.1/src/erase.rs:54:48
[INFO] [stdout]    |
[INFO] [stdout] 54 |                               Some(f) => Ok(fmt::ArgumentV1::new(self, f)),
[INFO] [stdout]    |                                                  ^^^^^^^^^^
[INFO] [stdout]    |                                                  |
[INFO] [stdout]    |                                                  could not find `ArgumentV1` in `fmt`
[INFO] [stdout]    |                                                  help: a struct with a similar name exists: `Arguments`
[INFO] [stdout] ...
[INFO] [stdout] 85 | / traits! {
[INFO] [stdout] 86 | |     "", Display, display;
[INFO] [stdout] 87 | |     "?", Debug, debug;
[INFO] [stdout] 88 | |     "e", LowerExp, lower_exp;
[INFO] [stdout] ...  |
[INFO] [stdout] 94 | |     "X", UpperHex, upper_hex;
[INFO] [stdout] 95 | | }
[INFO] [stdout]    | |_- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `traits` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `ArgumentV1` in module `fmt`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/runtime-fmt-0.4.1/src/erase.rs:42:77
[INFO] [stdout]    |
[INFO] [stdout] 42 |               fn by_name<'n>(&self, name: &'n str, idx: usize) -> Result<fmt::ArgumentV1, Error<'n>>;
[INFO] [stdout]    |                                                                               ^^^^^^^^^^ help: a struct with a similar name exists: `Arguments`
[INFO] [stdout] ...
[INFO] [stdout] 85 | / traits! {
[INFO] [stdout] 86 | |     "", Display, display;
[INFO] [stdout] 87 | |     "?", Debug, debug;
[INFO] [stdout] 88 | |     "e", LowerExp, lower_exp;
[INFO] [stdout] ...  |
[INFO] [stdout] 94 | |     "X", UpperHex, upper_hex;
[INFO] [stdout] 95 | | }
[INFO] [stdout]    | |_- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]   --> /rustc/f8297e351a40c1439a467bbbb6879088047f50b3/library/core/src/fmt/mod.rs:617:1
[INFO] [stdout]    |
[INFO] [stdout]    = note: similarly named struct `Arguments` defined here
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `traits` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `ArgumentV1` in module `fmt`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/runtime-fmt-0.4.1/src/erase.rs:50:77
[INFO] [stdout]    |
[INFO] [stdout] 50 |               fn by_name<'n>(&self, name: &'n str, idx: usize) -> Result<fmt::ArgumentV1, Error<'n>> {
[INFO] [stdout]    |                                                                               ^^^^^^^^^^ help: a struct with a similar name exists: `Arguments`
[INFO] [stdout] ...
[INFO] [stdout] 85 | / traits! {
[INFO] [stdout] 86 | |     "", Display, display;
[INFO] [stdout] 87 | |     "?", Debug, debug;
[INFO] [stdout] 88 | |     "e", LowerExp, lower_exp;
[INFO] [stdout] ...  |
[INFO] [stdout] 94 | |     "X", UpperHex, upper_hex;
[INFO] [stdout] 95 | | }
[INFO] [stdout]    | |_- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]   --> /rustc/f8297e351a40c1439a467bbbb6879088047f50b3/library/core/src/fmt/mod.rs:617:1
[INFO] [stdout]    |
[INFO] [stdout]    = note: similarly named struct `Arguments` defined here
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `traits` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/runtime-fmt-0.4.1/src/lib.rs:17:1
[INFO] [stdout]    |
[INFO] [stdout] 17 | #![feature(fmt_internals)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/runtime-fmt-0.4.1/src/lib.rs:18:1
[INFO] [stdout]    |
[INFO] [stdout] 18 | #![feature(unicode_internals)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/runtime-fmt-0.4.1/src/lib.rs:19:1
[INFO] [stdout]    |
[INFO] [stdout] 19 | #![feature(specialization)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/runtime-fmt-0.4.1/src/lib.rs:20:1
[INFO] [stdout]    |
[INFO] [stdout] 20 | #![feature(print_internals)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/runtime-fmt-0.4.1/src/lib.rs:21:1
[INFO] [stdout]    |
[INFO] [stdout] 21 | #![feature(rustc_private)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/runtime-fmt-0.4.1/src/lib.rs:201:39
[INFO] [stdout]     |
[INFO] [stdout] 201 |             None => Arguments::new_v1(&pieces, &args),
[INFO] [stdout]     |                     ----------------- ^^^^^^^ expected `&[&str; _]`, found `&Vec<&str>`
[INFO] [stdout]     |                     |
[INFO] [stdout]     |                     arguments to this function are incorrect
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected reference `&[&'static str; _]`
[INFO] [stdout]                found reference `&Vec<&str>`
[INFO] [stdout] note: associated function defined here
[INFO] [stdout]    --> /rustc/f8297e351a40c1439a467bbbb6879088047f50b3/library/core/src/fmt/rt.rs:209:12
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/runtime-fmt-0.4.1/src/lib.rs:268:39
[INFO] [stdout]     |
[INFO] [stdout] 268 |             None => Arguments::new_v1(&pieces, &self.inner.args),
[INFO] [stdout]     |                     ----------------- ^^^^^^^ expected `&[&str; _]`, found `&Vec<&str>`
[INFO] [stdout]     |                     |
[INFO] [stdout]     |                     arguments to this function are incorrect
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected reference `&[&'static str; _]`
[INFO] [stdout]                found reference `&Vec<&str>`
[INFO] [stdout] note: associated function defined here
[INFO] [stdout]    --> /rustc/f8297e351a40c1439a467bbbb6879088047f50b3/library/core/src/fmt/rt.rs:209:12
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0308, E0412, E0432, E0433, E0554.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `runtime-fmt` (lib) due to 12 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "8ad6bfb4f88a161896daf45048c459092728dc500ed9279890af885143acdcea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8ad6bfb4f88a161896daf45048c459092728dc500ed9279890af885143acdcea", kill_on_drop: false }`
[INFO] [stdout] 8ad6bfb4f88a161896daf45048c459092728dc500ed9279890af885143acdcea
