[INFO] fetching crate mltg 0.3.1...
[INFO] testing mltg-0.3.1 against master#62efba8a050c64249dab942951bb28f710208bc8 for pr-90799
[INFO] extracting crate mltg 0.3.1 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate mltg 0.3.1 on toolchain 62efba8a050c64249dab942951bb28f710208bc8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate mltg 0.3.1
[INFO] finished tweaking crates.io crate mltg 0.3.1
[INFO] tweaked toml for crates.io crate mltg 0.3.1 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate crates.io crate mltg 0.3.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1666f2ddcec6f6b308e62473be72dd2e0a3e0c9e0a9691e6b7498b437d99b5a6
[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" "1666f2ddcec6f6b308e62473be72dd2e0a3e0c9e0a9691e6b7498b437d99b5a6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1666f2ddcec6f6b308e62473be72dd2e0a3e0c9e0a9691e6b7498b437d99b5a6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1666f2ddcec6f6b308e62473be72dd2e0a3e0c9e0a9691e6b7498b437d99b5a6", kill_on_drop: false }`
[INFO] [stdout] 1666f2ddcec6f6b308e62473be72dd2e0a3e0c9e0a9691e6b7498b437d99b5a6
[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=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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "build" "--frozen" "--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] 513e6bf406a4eed2211f2ceaa57042e4940157becbe0150a12503f3c7ee34387
[INFO] running `Command { std: "docker" "start" "-a" "513e6bf406a4eed2211f2ceaa57042e4940157becbe0150a12503f3c7ee34387", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling windows-sys v0.27.0
[INFO] [stderr]    Compiling windows v0.27.0
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling num-bigint v0.4.3
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]    Compiling num-rational v0.4.0
[INFO] [stderr]    Compiling num-complex v0.4.0
[INFO] [stdout] error[E0433]: failed to resolve: could not find `windows` in `os`
[INFO] [stdout]     --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/windows-0.27.0/src/Windows/Win32/Foundation/mod.rs:3306:22
[INFO] [stdout]      |
[INFO] [stdout] 3306 |         use std::os::windows::ffi::OsStrExt;
[INFO] [stdout]      |                      ^^^^^^^ could not find `windows` in `os`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: could not find `windows` in `os`
[INFO] [stdout]     --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/windows-0.27.0/src/core/bindings.rs:1591:34
[INFO] [stdout]      |
[INFO] [stdout] 1591 |                     use std::os::windows::ffi::OsStrExt;
[INFO] [stdout]      |                                  ^^^^^^^ could not find `windows` in `os`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling num v0.4.0
[INFO] [stderr]    Compiling gecl v0.0.2
[INFO] [stdout] error[E0599]: no method named `encode_wide` found for reference `&OsStr` in the current scope
[INFO] [stdout]     --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/windows-0.27.0/src/Windows/Win32/Foundation/mod.rs:3307:104
[INFO] [stdout]      |
[INFO] [stdout] 3307 | ...ore::alloc::boxed::Box::<[u16]>::into_raw(self.encode_wide().chain(::core::iter::once(0)).collect::<::windows::core::alloc::vec::Vec<u...
[INFO] [stdout]      |                                                   ^^^^^^^^^^^ method not found in `&OsStr`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `encode_wide` found for reference `&OsStr` in the current scope
[INFO] [stdout]     --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/windows-0.27.0/src/core/bindings.rs:1592:116
[INFO] [stdout]      |
[INFO] [stdout] 1592 | ...ore::alloc::boxed::Box::<[u16]>::into_raw(self.encode_wide().chain(::core::iter::once(0)).collect::<::windows::core::alloc::vec::Vec<u...
[INFO] [stdout]      |                                                   ^^^^^^^^^^^ method not found in `&OsStr`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 4 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0433, E0599.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0433`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `windows` due to 5 previous errors
[INFO] running `Command { std: "docker" "inspect" "513e6bf406a4eed2211f2ceaa57042e4940157becbe0150a12503f3c7ee34387", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "513e6bf406a4eed2211f2ceaa57042e4940157becbe0150a12503f3c7ee34387", kill_on_drop: false }`
[INFO] [stdout] 513e6bf406a4eed2211f2ceaa57042e4940157becbe0150a12503f3c7ee34387