[INFO] cloning repository https://github.com/mopp/Axel
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mopp/Axel" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmopp%2FAxel", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmopp%2FAxel'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 2f14ca29a02276a059c2a5a4cb79f28ac10d5fae
[INFO] checking mopp/Axel against try#ddfd70ee3c3748e597b32f416b0d15a4f6e37685 for pr-87050
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmopp%2FAxel" "/workspace/builds/worker-10/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-10/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mopp/Axel on toolchain ddfd70ee3c3748e597b32f416b0d15a4f6e37685
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/mopp/Axel
[INFO] finished tweaking git repo https://github.com/mopp/Axel
[INFO] tweaked toml for git repo https://github.com/mopp/Axel written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] crate git repo https://github.com/mopp/Axel already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e4cb083fd97c5d7385301aacb1b1f8ccbab7544d56cd5257a6b5c0953f4ba28e
[INFO] running `Command { std: "docker" "start" "-a" "e4cb083fd97c5d7385301aacb1b1f8ccbab7544d56cd5257a6b5c0953f4ba28e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e4cb083fd97c5d7385301aacb1b1f8ccbab7544d56cd5257a6b5c0953f4ba28e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e4cb083fd97c5d7385301aacb1b1f8ccbab7544d56cd5257a6b5c0953f4ba28e", kill_on_drop: false }`
[INFO] [stdout] e4cb083fd97c5d7385301aacb1b1f8ccbab7544d56cd5257a6b5c0953f4ba28e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "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" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5b54585057693656cef5e22fe8d4be1e1d749dfeaefc6696af1da6781127a1f2
[INFO] running `Command { std: "docker" "start" "-a" "5b54585057693656cef5e22fe8d4be1e1d749dfeaefc6696af1da6781127a1f2", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v0.4.27
[INFO] [stderr]    Compiling failure_derive v0.1.5
[INFO] [stderr]     Checking bitflags v1.0.4
[INFO] [stderr]     Checking nodrop v0.1.13
[INFO] [stderr]     Checking spin v0.4.10
[INFO] [stderr]     Checking ux v0.1.3
[INFO] [stderr]     Checking bit_field v0.9.0
[INFO] [stderr]     Checking usize_conversions v0.2.0
[INFO] [stderr]     Checking static_assertions v0.3.1
[INFO] [stderr]     Checking bitfield v0.13.1
[INFO] [stderr]     Checking rlibc v1.0.0
[INFO] [stderr]     Checking intrusive-collections v0.7.8
[INFO] [stderr]     Checking spin v0.5.0
[INFO] [stderr]     Checking array-init v0.0.4
[INFO] [stderr]     Checking multiboot2 v0.7.1 (https://github.com/phil-opp/multiboot2-elf64.git#b80bb185)
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/intrusive-collections-0.7.8/src/lib.rs:278:13
[INFO] [stdout]     |
[INFO] [stdout] 278 |     feature(const_fn, allow_internal_unstable)
[INFO] [stdout]     |             ^^^^^^^^ feature has been removed
[INFO] [stdout]     |
[INFO] [stdout]     = note: split into finer-grained feature gates
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/intrusive-collections-0.7.8/src/lib.rs:278:13
[INFO] [stdout]     |
[INFO] [stdout] 278 |     feature(const_fn, allow_internal_unstable)
[INFO] [stdout]     |             ^^^^^^^^ feature has been removed
[INFO] [stdout]     |
[INFO] [stdout]     = note: split into finer-grained feature gates
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `allow_internal_unstable` expects a list of feature names
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/intrusive-collections-0.7.8/src/adapter.rs:173:1
[INFO] [stdout]     |
[INFO] [stdout] 173 | #[allow_internal_unstable]
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking lazy_static v1.2.0
[INFO] [stdout] error: `allow_internal_unstable` expects a list of feature names
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/intrusive-collections-0.7.8/src/adapter.rs:173:1
[INFO] [stdout]     |
[INFO] [stdout] 173 | #[allow_internal_unstable]
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0557`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `intrusive-collections`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[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 E0557`.
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "5b54585057693656cef5e22fe8d4be1e1d749dfeaefc6696af1da6781127a1f2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5b54585057693656cef5e22fe8d4be1e1d749dfeaefc6696af1da6781127a1f2", kill_on_drop: false }`
[INFO] [stdout] 5b54585057693656cef5e22fe8d4be1e1d749dfeaefc6696af1da6781127a1f2