[INFO] fetching crate yui_internal 0.1.5...
[INFO] testing yui_internal-0.1.5 against 1.54.0 for beta-1.55-1
[INFO] extracting crate yui_internal 0.1.5 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate yui_internal 0.1.5 on toolchain 1.54.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate yui_internal 0.1.5
[INFO] finished tweaking crates.io crate yui_internal 0.1.5
[INFO] tweaked toml for crates.io crate yui_internal 0.1.5 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 67d3996e4e4d5efad0f0e5890453bc168b53f8669686c19bd0419cccaef5df0a
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "67d3996e4e4d5efad0f0e5890453bc168b53f8669686c19bd0419cccaef5df0a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "67d3996e4e4d5efad0f0e5890453bc168b53f8669686c19bd0419cccaef5df0a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "67d3996e4e4d5efad0f0e5890453bc168b53f8669686c19bd0419cccaef5df0a", kill_on_drop: false }`
[INFO] [stdout] 67d3996e4e4d5efad0f0e5890453bc168b53f8669686c19bd0419cccaef5df0a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d56b0bee79c0e8e36c5836013d529b42a03466b8ea5c8c1dfecf066ea3ebc46e
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "d56b0bee79c0e8e36c5836013d529b42a03466b8ea5c8c1dfecf066ea3ebc46e", kill_on_drop: false }`
[INFO] [stderr]    Compiling yui_internal v0.1.5 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0433]: failed to resolve: could not find `export` in `syn`
[INFO] [stdout]  --> src/helper.rs:4:10
[INFO] [stdout]   |
[INFO] [stdout] 4 | use syn::export::fmt::Display;
[INFO] [stdout]   |          ^^^^^^ could not find `export` in `syn`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0405]: cannot find trait `Display` in this scope
[INFO] [stdout]   --> src/helper.rs:65:23
[INFO] [stdout]    |
[INFO] [stdout] 65 | pub fn get_lit_str<U: Display>(lit: &Lit, ident: &U) -> Result<String, Error> {
[INFO] [stdout]    |                       ^^^^^^^ not found in this scope
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing one of these items
[INFO] [stdout]    |
[INFO] [stdout] 1  | use core::fmt::Display;
[INFO] [stdout]    |
[INFO] [stdout] 1  | use crate::error::Display;
[INFO] [stdout]    |
[INFO] [stdout] 1  | use std::fmt::Display;
[INFO] [stdout]    |
[INFO] [stdout] 1  | use syn::__private::fmt::Display;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0405]: cannot find trait `Display` in this scope
[INFO] [stdout]   --> src/helper.rs:76:29
[INFO] [stdout]    |
[INFO] [stdout] 76 | pub fn get_lit_as_string<U: Display>(lit: &Lit, ident: &U) -> Result<String, Error> {
[INFO] [stdout]    |                             ^^^^^^^ not found in this scope
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing one of these items
[INFO] [stdout]    |
[INFO] [stdout] 1  | use core::fmt::Display;
[INFO] [stdout]    |
[INFO] [stdout] 1  | use crate::error::Display;
[INFO] [stdout]    |
[INFO] [stdout] 1  | use std::fmt::Display;
[INFO] [stdout]    |
[INFO] [stdout] 1  | use syn::__private::fmt::Display;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0405]: cannot find trait `Display` in this scope
[INFO] [stdout]   --> src/helper.rs:90:35
[INFO] [stdout]    |
[INFO] [stdout] 90 | pub fn get_lit_int<T: FromStr, U: Display>(lit: &Lit, ident: &U) -> Result<T, Error>
[INFO] [stdout]    |                                   ^^^^^^^ not found in this scope
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing one of these items
[INFO] [stdout]    |
[INFO] [stdout] 1  | use core::fmt::Display;
[INFO] [stdout]    |
[INFO] [stdout] 1  | use crate::error::Display;
[INFO] [stdout]    |
[INFO] [stdout] 1  | use std::fmt::Display;
[INFO] [stdout]    |
[INFO] [stdout] 1  | use syn::__private::fmt::Display;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0405]: cannot find trait `Display` in this scope
[INFO] [stdout]    --> src/helper.rs:104:37
[INFO] [stdout]     |
[INFO] [stdout] 104 | pub fn get_lit_float<T: FromStr, U: Display>(lit: &Lit, ident: &U) -> Result<T, Error>
[INFO] [stdout]     |                                     ^^^^^^^ not found in this scope
[INFO] [stdout]     |
[INFO] [stdout] help: consider importing one of these items
[INFO] [stdout]     |
[INFO] [stdout] 1   | use core::fmt::Display;
[INFO] [stdout]     |
[INFO] [stdout] 1   | use crate::error::Display;
[INFO] [stdout]     |
[INFO] [stdout] 1   | use std::fmt::Display;
[INFO] [stdout]     |
[INFO] [stdout] 1   | use syn::__private::fmt::Display;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0405]: cannot find trait `Display` in this scope
[INFO] [stdout]    --> src/helper.rs:118:24
[INFO] [stdout]     |
[INFO] [stdout] 118 | pub fn get_lit_bool<U: Display>(lit: &Lit, ident: &U) -> Result<bool, Error> {
[INFO] [stdout]     |                        ^^^^^^^ not found in this scope
[INFO] [stdout]     |
[INFO] [stdout] help: consider importing one of these items
[INFO] [stdout]     |
[INFO] [stdout] 1   | use core::fmt::Display;
[INFO] [stdout]     |
[INFO] [stdout] 1   | use crate::error::Display;
[INFO] [stdout]     |
[INFO] [stdout] 1   | use std::fmt::Display;
[INFO] [stdout]     |
[INFO] [stdout] 1   | use syn::__private::fmt::Display;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 6 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0405, E0433.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0405`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `yui_internal`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "d56b0bee79c0e8e36c5836013d529b42a03466b8ea5c8c1dfecf066ea3ebc46e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d56b0bee79c0e8e36c5836013d529b42a03466b8ea5c8c1dfecf066ea3ebc46e", kill_on_drop: false }`
[INFO] [stdout] d56b0bee79c0e8e36c5836013d529b42a03466b8ea5c8c1dfecf066ea3ebc46e
