[INFO] fetching crate rustfmt_fn 0.1.0...
[INFO] checking rustfmt_fn-0.1.0 against try#ffa4a0215752773248fb0f0a8092f1c3e7907e9e for pr-75585
[INFO] extracting crate rustfmt_fn 0.1.0 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate rustfmt_fn 0.1.0 on toolchain ffa4a0215752773248fb0f0a8092f1c3e7907e9e
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ffa4a0215752773248fb0f0a8092f1c3e7907e9e" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rustfmt_fn 0.1.0
[INFO] finished tweaking crates.io crate rustfmt_fn 0.1.0
[INFO] tweaked toml for crates.io crate rustfmt_fn 0.1.0 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ffa4a0215752773248fb0f0a8092f1c3e7907e9e" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ffa4a0215752773248fb0f0a8092f1c3e7907e9e" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded rustc-ap-rustc_attr v669.0.0
[INFO] [stderr]   Downloaded rustfmt-config_proc_macro v0.2.0
[INFO] [stderr]   Downloaded rustc-ap-rustc_expand v669.0.0
[INFO] [stderr]   Downloaded rustfmt-nightly v1.4.19
[INFO] [stderr]   Downloaded rustc-ap-rustc_ast_passes v669.0.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+ffa4a0215752773248fb0f0a8092f1c3e7907e9e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a26bcccc20647b16793a67cda1aca139cf39b2df382031bca0b98fc389837db6
[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" "a26bcccc20647b16793a67cda1aca139cf39b2df382031bca0b98fc389837db6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a26bcccc20647b16793a67cda1aca139cf39b2df382031bca0b98fc389837db6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a26bcccc20647b16793a67cda1aca139cf39b2df382031bca0b98fc389837db6", kill_on_drop: false }`
[INFO] [stdout] a26bcccc20647b16793a67cda1aca139cf39b2df382031bca0b98fc389837db6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+ffa4a0215752773248fb0f0a8092f1c3e7907e9e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 867fab84546da5e8fa35ef9ed6aa399c139180f1e8a4b7f4d44559facf1bda30
[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" "867fab84546da5e8fa35ef9ed6aa399c139180f1e8a4b7f4d44559facf1bda30", 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] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking instant v0.1.6
[INFO] [stderr]     Checking rustc-ap-rustc_graphviz v669.0.0
[INFO] [stderr]    Compiling rustc-ap-rustc_ast v669.0.0
[INFO] [stderr]    Compiling rustc-ap-rustc_target v669.0.0
[INFO] [stderr]     Checking annotate-snippets v0.8.0
[INFO] [stderr]     Checking rustc-ap-rustc_fs_util v669.0.0
[INFO] [stderr]    Compiling rustc-ap-rustc_attr v669.0.0
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]    Compiling unicode-segmentation v1.6.0
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]    Compiling rustfmt-nightly v1.4.19
[INFO] [stderr]     Checking rustc-workspace-hack v1.0.0
[INFO] [stderr]     Checking lock_api v0.4.1
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking rustc-ap-rustc_lexer v669.0.0
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]     Checking parking_lot_core v0.8.0
[INFO] [stderr]    Compiling synstructure v0.12.4
[INFO] [stderr]    Compiling serde_derive v1.0.115
[INFO] [stderr]    Compiling thiserror-impl v1.0.20
[INFO] [stderr]    Compiling rustfmt-config_proc_macro v0.2.0
[INFO] [stderr]    Compiling derive-new v0.5.8
[INFO] [stderr]     Checking rustc-ap-rustc_serialize v669.0.0
[INFO] [stderr]     Checking env_logger v0.6.2
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking annotate-snippets v0.6.1
[INFO] [stderr]     Checking parking_lot v0.11.0
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]     Checking once_cell v1.4.1
[INFO] [stderr]    Compiling rustc-ap-rustc_macros v669.0.0
[INFO] [stderr]     Checking rustc-ap-rustc_index v669.0.0
[INFO] [stderr]    Compiling structopt-derive v0.4.10
[INFO] [stderr]     Checking thiserror v1.0.20
[INFO] [stderr]     Checking structopt v0.3.17
[INFO] [stderr]    Compiling serde v1.0.115
[INFO] [stderr]     Checking semver v0.9.0
[INFO] [stderr]     Checking serde_json v1.0.57
[INFO] [stderr]     Checking toml v0.5.6
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]     Checking cargo_metadata v0.8.2
[INFO] [stderr]    Compiling parking_lot_core v0.6.2
[INFO] [stderr]    Compiling parking_lot v0.9.0
[INFO] [stderr]     Checking measureme v0.7.1
[INFO] [stderr]     Checking rustc-ap-rustc_data_structures v669.0.0
[INFO] [stderr]     Checking rustc-ap-rustc_arena v669.0.0
[INFO] [stderr]     Checking rustc-ap-rustc_span v669.0.0
[INFO] [stderr]     Checking rustc-ap-rustc_feature v669.0.0
[INFO] [stderr]     Checking rustc-ap-rustc_errors v669.0.0
[INFO] [stderr]     Checking rustc-ap-rustc_ast_pretty v669.0.0
[INFO] [stderr]     Checking rustc-ap-rustc_session v669.0.0
[INFO] [stderr]     Checking rustc-ap-rustc_parse v669.0.0
[INFO] [stdout] error: environment variable `CFG_RELEASE_CHANNEL` not defined
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustc-ap-rustc_attr-669.0.0/builtin.rs:655:27
[INFO] [stdout]     |
[INFO] [stdout] 655 |             let channel = env!("CFG_RELEASE_CHANNEL");
[INFO] [stdout]     |                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: environment variable `CFG_RELEASE` not defined
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustc-ap-rustc_attr-669.0.0/builtin.rs:657:48
[INFO] [stdout]     |
[INFO] [stdout] 657 |             let rustc_version = Version::parse(env!("CFG_RELEASE")).unwrap();
[INFO] [stdout]     |                                                ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rustc-ap-rustc_attr`.
[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] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "867fab84546da5e8fa35ef9ed6aa399c139180f1e8a4b7f4d44559facf1bda30", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "867fab84546da5e8fa35ef9ed6aa399c139180f1e8a4b7f4d44559facf1bda30", kill_on_drop: false }`
[INFO] [stdout] 867fab84546da5e8fa35ef9ed6aa399c139180f1e8a4b7f4d44559facf1bda30