[INFO] fetching crate rust_cn 0.1.6...
[INFO] checking rust_cn-0.1.6 against master#cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c for pr-143170
[INFO] extracting crate rust_cn 0.1.6 into /workspace/builds/worker-6-tc1/source
[INFO] started tweaking crates.io crate rust_cn 0.1.6
[INFO] finished tweaking crates.io crate rust_cn 0.1.6
[INFO] tweaked toml for crates.io crate rust_cn 0.1.6 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate rust_cn 0.1.6 on toolchain cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate rust_cn 0.1.6 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "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-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2fa2e547e8464ec933337e38ce2b24ab8a6fd1344cc96f7ef5b8ee2333bd7d5c
[INFO] running `Command { std: "docker" "start" "-a" "2fa2e547e8464ec933337e38ce2b24ab8a6fd1344cc96f7ef5b8ee2333bd7d5c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2fa2e547e8464ec933337e38ce2b24ab8a6fd1344cc96f7ef5b8ee2333bd7d5c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2fa2e547e8464ec933337e38ce2b24ab8a6fd1344cc96f7ef5b8ee2333bd7d5c", kill_on_drop: false }`
[INFO] [stdout] 2fa2e547e8464ec933337e38ce2b24ab8a6fd1344cc96f7ef5b8ee2333bd7d5c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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" "RUSTDOCFLAGS=--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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3c213d1a8c8775e6b99416cd5be5fbc81a69ec9c8fe610425c7d83ed26a5d120
[INFO] running `Command { std: "docker" "start" "-a" "3c213d1a8c8775e6b99416cd5be5fbc81a69ec9c8fe610425c7d83ed26a5d120", kill_on_drop: false }`
[INFO] [stderr]     Checking rust_cn v0.1.6 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0433]: failed to resolve: could not find `windows` in `os`
[INFO] [stdout]  --> src/windows.rs:6:14
[INFO] [stdout]   |
[INFO] [stdout] 6 | use std::os::windows::process::CommandExt;
[INFO] [stdout]   |              ^^^^^^^ could not find `windows` in `os`
[INFO] [stdout]   |
[INFO] [stdout] note: found an item that was configured out
[INFO] [stdout]  --> /rustc/cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c/library/std/src/os/mod.rs:63:9
[INFO] [stdout] note: the item is gated here
[INFO] [stdout]  --> /rustc/cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c/library/std/src/os/mod.rs:55:1
[INFO] [stdout] note: found an item that was configured out
[INFO] [stdout]  --> /rustc/cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c/library/std/src/os/mod.rs:121:9
[INFO] [stdout] note: the item is gated here
[INFO] [stdout]  --> /rustc/cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c/library/std/src/os/mod.rs:120:1
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: could not find `windows` in `os`
[INFO] [stdout]  --> src/windows.rs:6:14
[INFO] [stdout]   |
[INFO] [stdout] 6 | use std::os::windows::process::CommandExt;
[INFO] [stdout]   |              ^^^^^^^ could not find `windows` in `os`
[INFO] [stdout]   |
[INFO] [stdout] note: found an item that was configured out
[INFO] [stdout]  --> /rustc/cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c/library/std/src/os/mod.rs:63:9
[INFO] [stdout] note: the item is gated here
[INFO] [stdout]  --> /rustc/cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c/library/std/src/os/mod.rs:55:1
[INFO] [stdout] note: found an item that was configured out
[INFO] [stdout]  --> /rustc/cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c/library/std/src/os/mod.rs:121:9
[INFO] [stdout] note: the item is gated here
[INFO] [stdout]  --> /rustc/cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c/library/std/src/os/mod.rs:120:1
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `creation_flags` found for struct `Command` in the current scope
[INFO] [stdout]   --> src/windows.rs:36:10
[INFO] [stdout]    |
[INFO] [stdout] 35 |       let _output = Command::new("cmd")
[INFO] [stdout]    |  ___________________-
[INFO] [stdout] 36 | |         .creation_flags(0x08000000)
[INFO] [stdout]    | |         -^^^^^^^^^^^^^^ method not found in `Command`
[INFO] [stdout]    | |_________|
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `creation_flags` found for struct `Command` in the current scope
[INFO] [stdout]    --> src/windows.rs:120:10
[INFO] [stdout]     |
[INFO] [stdout] 119 |       let res = Command::new("cmd")
[INFO] [stdout]     |  _______________-
[INFO] [stdout] 120 | |         .creation_flags(0x08000000)
[INFO] [stdout]     | |         -^^^^^^^^^^^^^^ method not found in `Command`
[INFO] [stdout]     | |_________|
[INFO] [stdout]     |
[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 `rust_cn` (bin "rust_cn" test) due to 3 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error[E0599]: no method named `creation_flags` found for struct `Command` in the current scope
[INFO] [stdout]   --> src/windows.rs:36:10
[INFO] [stdout]    |
[INFO] [stdout] 35 |       let _output = Command::new("cmd")
[INFO] [stdout]    |  ___________________-
[INFO] [stdout] 36 | |         .creation_flags(0x08000000)
[INFO] [stdout]    | |         -^^^^^^^^^^^^^^ method not found in `Command`
[INFO] [stdout]    | |_________|
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `creation_flags` found for struct `Command` in the current scope
[INFO] [stdout]    --> src/windows.rs:120:10
[INFO] [stdout]     |
[INFO] [stdout] 119 |       let res = Command::new("cmd")
[INFO] [stdout]     |  _______________-
[INFO] [stdout] 120 | |         .creation_flags(0x08000000)
[INFO] [stdout]     | |         -^^^^^^^^^^^^^^ method not found in `Command`
[INFO] [stdout]     | |_________|
[INFO] [stdout]     |
[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 `rust_cn` (bin "rust_cn") due to 3 previous errors
[INFO] running `Command { std: "docker" "inspect" "3c213d1a8c8775e6b99416cd5be5fbc81a69ec9c8fe610425c7d83ed26a5d120", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3c213d1a8c8775e6b99416cd5be5fbc81a69ec9c8fe610425c7d83ed26a5d120", kill_on_drop: false }`
[INFO] [stdout] 3c213d1a8c8775e6b99416cd5be5fbc81a69ec9c8fe610425c7d83ed26a5d120