[INFO] fetching crate superchan 0.0.7...
[INFO] testing superchan-0.0.7 against 1.99.0-beta.8 for beta-1.100-2
[INFO] extracting crate superchan 0.0.7 into /workspace/builds/worker-1-tc1/source
[INFO] started tweaking crates.io crate superchan 0.0.7
[INFO] finished tweaking crates.io crate superchan 0.0.7
[INFO] tweaked toml for crates.io crate superchan 0.0.7 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate superchan 0.0.7 on toolchain 1.99.0-beta.8
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.99.0-beta.8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.99.0-beta.8" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 2 packages to highest compatible versions
[INFO] [stderr]       Adding bincode v0.0.6 (available: v3.0.0)
[INFO] [stderr]       Adding rustc-serialize v0.2.15 (available: v0.3.25)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.99.0-beta.8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: Cargo.toml: `package.edition` is unspecified, defaulting to `2015` while the latest is `2024`
[INFO] [stderr] warning: `superchan` (manifest) generated 1 warning
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded bincode v0.0.6
[INFO] [stderr]   Downloaded rustc-serialize v0.2.15
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:3111399a4047eeb3a02b7a90e478d715f38a8c6669b5c4b49d30a17385265909" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 0a750ece32e6cf09e3be747db10d506bb5421b37107845958613cf59579b241e
[INFO] running `Command { std: "docker" "start" "0a750ece32e6cf09e3be747db10d506bb5421b37107845958613cf59579b241e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0a750ece32e6cf09e3be747db10d506bb5421b37107845958613cf59579b241e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "0a750ece32e6cf09e3be747db10d506bb5421b37107845958613cf59579b241e" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0a750ece32e6cf09e3be747db10d506bb5421b37107845958613cf59579b241e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "0a750ece32e6cf09e3be747db10d506bb5421b37107845958613cf59579b241e" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] warning: Cargo.toml: `package.edition` is unspecified, defaulting to `2015` while the latest is `2024`
[INFO] [stderr] warning: `superchan` (manifest) generated 1 warning
[INFO] [stderr]    Compiling rustc-serialize v0.2.15
[INFO] [stdout] error[E0463]: can't find crate for `unicode`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/rustc-serialize-0.2.15/src/lib.rs:23:1
[INFO] [stdout]    |
[INFO] [stdout] 23 | extern crate unicode;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^ can't find crate
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0642]: patterns aren't allowed in functions without bodies
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/rustc-serialize-0.2.15/src/serialize.rs:144:45
[INFO] [stdout]     |
[INFO] [stdout] 144 | ...                   &f_name: &str,
[INFO] [stdout]     |                       ^^^^^^^ pattern not allowed in function without body
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `std::ffi::AsOsStr`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/rustc-serialize-0.2.15/src/serialize.rs:18:16
[INFO] [stdout]    |
[INFO] [stdout] 18 | use std::ffi::{AsOsStr, OsString};
[INFO] [stdout]    |                ^^^^^^^ no `AsOsStr` in `ffi`
[INFO] [stdout]    |
[INFO] [stdout] help: a similar name exists in the module
[INFO] [stdout]    |
[INFO] [stdout] 18 - use std::ffi::{AsOsStr, OsString};
[INFO] [stdout] 18 + use std::ffi::{OsStr, OsString};
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `std::old_path`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/rustc-serialize-0.2.15/src/serialize.rs:19:10
[INFO] [stdout]    |
[INFO] [stdout] 19 | use std::old_path::{PosixPath, WindowsPath};
[INFO] [stdout]    |          ^^^^^^^^ could not find `old_path` in `std`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `std::os::unix::OsStrExt`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/rustc-serialize-0.2.15/src/serialize.rs:572:13
[INFO] [stdout]     |
[INFO] [stdout] 572 |         use std::os::unix::OsStrExt;
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^--------
[INFO] [stdout]     |                            |
[INFO] [stdout]     |                            no `OsStrExt` in `os::unix`
[INFO] [stdout]     |
[INFO] [stdout] help: consider importing this trait instead
[INFO] [stdout]     |
[INFO] [stdout] 572 |         use std::os::unix::prelude::OsStrExt;
[INFO] [stdout]     |                            +++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `std::os::unix::OsStringExt`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/rustc-serialize-0.2.15/src/serialize.rs:592:13
[INFO] [stdout]     |
[INFO] [stdout] 592 |         use std::os::unix::OsStringExt;
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^-----------
[INFO] [stdout]     |                            |
[INFO] [stdout]     |                            no `OsStringExt` in `os::unix`
[INFO] [stdout]     |
[INFO] [stdout] help: consider importing this trait instead
[INFO] [stdout]     |
[INFO] [stdout] 592 |         use std::os::unix::prelude::OsStringExt;
[INFO] [stdout]     |                            +++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `std::collections::VecMap`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/rustc-serialize-0.2.15/src/collection_impls.rs:17:84
[INFO] [stdout]    |
[INFO] [stdout] 17 | use std::collections::{LinkedList, VecDeque, BTreeMap, BTreeSet, HashMap, HashSet, VecMap};
[INFO] [stdout]    |                                                                                    ^^^^^^ no `VecMap` in `collections`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `std::collections::hash_state`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/rustc-serialize-0.2.15/src/collection_impls.rs:18:23
[INFO] [stdout]    |
[INFO] [stdout] 18 | use std::collections::hash_state::HashState;
[INFO] [stdout]    |                       ^^^^^^^^^^ could not find `hash_state` in `collections`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved imports `std::num::Float`, `std::num::Int`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/rustc-serialize-0.2.15/src/json.rs:249:16
[INFO] [stdout]     |
[INFO] [stdout] 249 | use std::num::{Float, Int};
[INFO] [stdout]     |                ^^^^^  ^^^ no `Int` in `num`
[INFO] [stdout]     |                |
[INFO] [stdout]     |                no `Float` in `num`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0432, E0463, E0642.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rustc-serialize` (lib) due to 9 previous errors
[INFO] running `Command { std: "docker" "inspect" "0a750ece32e6cf09e3be747db10d506bb5421b37107845958613cf59579b241e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0a750ece32e6cf09e3be747db10d506bb5421b37107845958613cf59579b241e", kill_on_drop: false }`
[INFO] [stdout] 0a750ece32e6cf09e3be747db10d506bb5421b37107845958613cf59579b241e
