[INFO] fetching crate ld 0.0.1...
[INFO] checking ld-0.0.1 against beta for pr-78714
[INFO] extracting crate ld 0.0.1 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate ld 0.0.1 on toolchain beta
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate ld 0.0.1
[INFO] finished tweaking crates.io crate ld 0.0.1
[INFO] tweaked toml for crates.io crate ld 0.0.1 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 13a29975c78d76f763cfd6943f03dd35a01fb84886f595f909591f3db69efd82
[INFO] running `Command { std: "docker" "start" "-a" "13a29975c78d76f763cfd6943f03dd35a01fb84886f595f909591f3db69efd82", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "13a29975c78d76f763cfd6943f03dd35a01fb84886f595f909591f3db69efd82", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "13a29975c78d76f763cfd6943f03dd35a01fb84886f595f909591f3db69efd82", kill_on_drop: false }`
[INFO] [stdout] 13a29975c78d76f763cfd6943f03dd35a01fb84886f595f909591f3db69efd82
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 8429655fad2f2a1bcde07a6b7c9a6a23fba958d33b55edf67ef3ab34b176a275
[INFO] running `Command { std: "docker" "start" "-a" "8429655fad2f2a1bcde07a6b7c9a6a23fba958d33b55edf67ef3ab34b176a275", kill_on_drop: false }`
[INFO] [stderr]     Checking ld v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0432]: unresolved import `std::io::Command`
[INFO] [stdout]  --> src/lib.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::io::Command;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^ no `Command` in `io`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `std::io::process`
[INFO] [stdout]  --> src/lib.rs:5:14
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::io::process::InheritFd;
[INFO] [stdout]   |              ^^^^^^^ could not find `process` in `io`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `std::io::Command`
[INFO] [stdout]  --> src/lib.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::io::Command;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^ no `Command` in `io`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `std::io::process`
[INFO] [stdout]  --> src/lib.rs:5:14
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::io::process::InheritFd;
[INFO] [stdout]   |              ^^^^^^^ could not find `process` in `io`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find function `getenv` in module `os`
[INFO] [stdout]   --> src/lib.rs:13:22
[INFO] [stdout]    |
[INFO] [stdout] 13 |     let target = os::getenv("TARGET").unwrap();
[INFO] [stdout]    |                      ^^^^^^ not found in `os`
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing this function
[INFO] [stdout]    |
[INFO] [stdout] 3  | use os::unix::process::sys::os::getenv;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find function `getenv` in module `os`
[INFO] [stdout]   --> src/lib.rs:15:25
[INFO] [stdout]    |
[INFO] [stdout] 15 |     let opt_level = os::getenv("OPT_LEVEL").unwrap();
[INFO] [stdout]    |                         ^^^^^^ not found in `os`
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing this function
[INFO] [stdout]    |
[INFO] [stdout] 3  | use os::unix::process::sys::os::getenv;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `Path`
[INFO] [stdout]   --> src/lib.rs:19:15
[INFO] [stdout]    |
[INFO] [stdout] 19 |     let dst = Path::new(os::getenv("OUT_DIR").unwrap());
[INFO] [stdout]    |               ^^^^ not found in this scope
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing this struct
[INFO] [stdout]    |
[INFO] [stdout] 3  | use std::path::Path;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find function `getenv` in module `os`
[INFO] [stdout]   --> src/lib.rs:19:29
[INFO] [stdout]    |
[INFO] [stdout] 19 |     let dst = Path::new(os::getenv("OUT_DIR").unwrap());
[INFO] [stdout]    |                             ^^^^^^ not found in `os`
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing this function
[INFO] [stdout]    |
[INFO] [stdout] 3  | use os::unix::process::sys::os::getenv;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `Path`
[INFO] [stdout]   --> src/lib.rs:21:15
[INFO] [stdout]    |
[INFO] [stdout] 21 |     let src = Path::new(os::getenv("CARGO_MANIFEST_DIR").unwrap());
[INFO] [stdout]    |               ^^^^ not found in this scope
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing this struct
[INFO] [stdout]    |
[INFO] [stdout] 3  | use std::path::Path;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find function `getenv` in module `os`
[INFO] [stdout]   --> src/lib.rs:21:29
[INFO] [stdout]    |
[INFO] [stdout] 21 |     let src = Path::new(os::getenv("CARGO_MANIFEST_DIR").unwrap());
[INFO] [stdout]    |                             ^^^^^^ not found in `os`
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing this function
[INFO] [stdout]    |
[INFO] [stdout] 3  | use os::unix::process::sys::os::getenv;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(if_let)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find function `getenv` in module `os`
[INFO] [stdout]   --> src/lib.rs:13:22
[INFO] [stdout]    |
[INFO] [stdout] 13 |     let target = os::getenv("TARGET").unwrap();
[INFO] [stdout]    |                      ^^^^^^ not found in `os`
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing this function
[INFO] [stdout]    |
[INFO] [stdout] 3  | use os::unix::process::sys::os::getenv;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find function `getenv` in module `os`
[INFO] [stdout]   --> src/lib.rs:15:25
[INFO] [stdout]    |
[INFO] [stdout] 15 |     let opt_level = os::getenv("OPT_LEVEL").unwrap();
[INFO] [stdout]    |                         ^^^^^^ not found in `os`
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing this function
[INFO] [stdout]    |
[INFO] [stdout] 3  | use os::unix::process::sys::os::getenv;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `Path`
[INFO] [stdout]   --> src/lib.rs:19:15
[INFO] [stdout]    |
[INFO] [stdout] 19 |     let dst = Path::new(os::getenv("OUT_DIR").unwrap());
[INFO] [stdout]    |               ^^^^ not found in this scope
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing this struct
[INFO] [stdout]    |
[INFO] [stdout] 3  | use std::path::Path;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find function `getenv` in module `os`
[INFO] [stdout]   --> src/lib.rs:19:29
[INFO] [stdout]    |
[INFO] [stdout] 19 |     let dst = Path::new(os::getenv("OUT_DIR").unwrap());
[INFO] [stdout]    |                             ^^^^^^ not found in `os`
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing this function
[INFO] [stdout]    |
[INFO] [stdout] 3  | use os::unix::process::sys::os::getenv;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `Path`
[INFO] [stdout]   --> src/lib.rs:21:15
[INFO] [stdout]    |
[INFO] [stdout] 21 |     let src = Path::new(os::getenv("CARGO_MANIFEST_DIR").unwrap());
[INFO] [stdout]    |               ^^^^ not found in this scope
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing this struct
[INFO] [stdout]    |
[INFO] [stdout] 3  | use std::path::Path;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find function `getenv` in module `os`
[INFO] [stdout]   --> src/lib.rs:21:29
[INFO] [stdout]    |
[INFO] [stdout] 21 |     let src = Path::new(os::getenv("CARGO_MANIFEST_DIR").unwrap());
[INFO] [stdout]    |                             ^^^^^^ not found in `os`
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing this function
[INFO] [stdout]    |
[INFO] [stdout] 3  | use os::unix::process::sys::os::getenv;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(if_let)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 9 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0425, E0432, E0433, E0554.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0425`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `ld`
[INFO] [stdout] error: aborting due to 9 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] 
[INFO] [stdout] Some errors have detailed explanations: E0425, E0432, E0433, E0554.
[INFO] [stdout] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stdout] For more information about an error, try `rustc --explain E0425`.
[INFO] [stdout] 
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "8429655fad2f2a1bcde07a6b7c9a6a23fba958d33b55edf67ef3ab34b176a275", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8429655fad2f2a1bcde07a6b7c9a6a23fba958d33b55edf67ef3ab34b176a275", kill_on_drop: false }`
[INFO] [stdout] 8429655fad2f2a1bcde07a6b7c9a6a23fba958d33b55edf67ef3ab34b176a275