[INFO] cloning repository https://github.com/George3d6/lib3d6
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/George3d6/lib3d6" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FGeorge3d6%2Flib3d6", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FGeorge3d6%2Flib3d6'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0adb0a5e6adc2496c6276a7198eafb94d3cb8e01
[INFO] checking George3d6/lib3d6 against master#506512391b1a75ae450d36c9420978402a91abcc for pr-125384
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FGeorge3d6%2Flib3d6" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/George3d6/lib3d6 on toolchain 506512391b1a75ae450d36c9420978402a91abcc
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+506512391b1a75ae450d36c9420978402a91abcc" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/George3d6/lib3d6
[INFO] finished tweaking git repo https://github.com/George3d6/lib3d6
[INFO] tweaked toml for git repo https://github.com/George3d6/lib3d6 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/George3d6/lib3d6 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" "+506512391b1a75ae450d36c9420978402a91abcc" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:59a85a07ab18ca8720692f8e61effa1c651d9e2ca591e072c2b212bb91a6b8b5" "/opt/rustwide/cargo-home/bin/cargo" "+506512391b1a75ae450d36c9420978402a91abcc" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f83121313f621c6a3bb098e94ce9eef88b0b7219004258916e01d75ac1de614c
[INFO] running `Command { std: "docker" "start" "-a" "f83121313f621c6a3bb098e94ce9eef88b0b7219004258916e01d75ac1de614c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f83121313f621c6a3bb098e94ce9eef88b0b7219004258916e01d75ac1de614c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f83121313f621c6a3bb098e94ce9eef88b0b7219004258916e01d75ac1de614c", kill_on_drop: false }`
[INFO] [stdout] f83121313f621c6a3bb098e94ce9eef88b0b7219004258916e01d75ac1de614c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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=allow" "-e" "RUSTDOCFLAGS=--cap-lints=allow" "-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@sha256:59a85a07ab18ca8720692f8e61effa1c651d9e2ca591e072c2b212bb91a6b8b5" "/opt/rustwide/cargo-home/bin/cargo" "+506512391b1a75ae450d36c9420978402a91abcc" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6a83aff751890f20c83cd60f49770f698c9465e2abc219999a3a108f0dcddacb
[INFO] running `Command { std: "docker" "start" "-a" "6a83aff751890f20c83cd60f49770f698c9465e2abc219999a3a108f0dcddacb", kill_on_drop: false }`
[INFO] [stderr]    Compiling lib3d6 v0.0.4 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0599]: no method named `read_to_string` found for struct `File` in the current scope
[INFO] [stdout]  --> src/tmux/mod.rs:9:10
[INFO] [stdout]   |
[INFO] [stdout] 9 |     file.read_to_string(&mut random_name, 12);
[INFO] [stdout]   |          ^^^^^^^^^^^^^^
[INFO] [stdout]  --> /rustc/506512391b1a75ae450d36c9420978402a91abcc/library/std/src/io/mod.rs:908:8
[INFO] [stdout]   |
[INFO] [stdout]   = note: the method is available for `File` here
[INFO] [stdout]   |
[INFO] [stdout]   = help: items from traits can only be used if the trait is in scope
[INFO] [stdout] help: there is a method `read_to_end` with a similar name, but with different arguments
[INFO] [stdout]  --> /rustc/506512391b1a75ae450d36c9420978402a91abcc/library/std/src/io/mod.rs:865:5
[INFO] [stdout] help: trait `Read` which provides `read_to_string` is implemented but not in scope; perhaps you want to import it
[INFO] [stdout]   |
[INFO] [stdout] 1 + use std::io::Read;
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `read_to_string` found for struct `File` in the current scope
[INFO] [stdout]  --> src/tmux/mod.rs:9:10
[INFO] [stdout]   |
[INFO] [stdout] 9 |     file.read_to_string(&mut random_name, 12);
[INFO] [stdout]   |          ^^^^^^^^^^^^^^
[INFO] [stdout]  --> /rustc/506512391b1a75ae450d36c9420978402a91abcc/library/std/src/io/mod.rs:908:8
[INFO] [stdout]   |
[INFO] [stdout]   = note: the method is available for `File` here
[INFO] [stdout]   |
[INFO] [stdout]   = help: items from traits can only be used if the trait is in scope
[INFO] [stdout] help: there is a method `read_to_end` with a similar name, but with different arguments
[INFO] [stdout]  --> /rustc/506512391b1a75ae450d36c9420978402a91abcc/library/std/src/io/mod.rs:865:5
[INFO] [stdout] help: trait `Read` which provides `read_to_string` is implemented but not in scope; perhaps you want to import it
[INFO] [stdout]   |
[INFO] [stdout] 1 + use std::io::Read;
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `read_to_string` found for struct `File` in the current scope
[INFO] [stdout]  --> src/tmux/mod.rs:9:10
[INFO] [stdout]   |
[INFO] [stdout] 9 |     file.read_to_string(&mut random_name, 12);
[INFO] [stdout]   |          ^^^^^^^^^^^^^^
[INFO] [stdout]  --> /rustc/506512391b1a75ae450d36c9420978402a91abcc/library/std/src/io/mod.rs:908:8
[INFO] [stdout]   |
[INFO] [stdout]   = note: the method is available for `File` here
[INFO] [stdout]   |
[INFO] [stdout]   = help: items from traits can only be used if the trait is in scope
[INFO] [stdout] help: there is a method `read_to_end` with a similar name, but with different arguments
[INFO] [stdout]  --> /rustc/506512391b1a75ae450d36c9420978402a91abcc/library/std/src/io/mod.rs:865:5
[INFO] [stdout] help: trait `Read` which provides `read_to_string` is implemented but not in scope; perhaps you want to import it
[INFO] [stdout]   |
[INFO] [stdout] 1 + use std::io::Read;
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0599`.
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0599`.
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0599`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `lib3d6` (lib) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `lib3d6` (lib test) due to 2 previous errors
[INFO] [stderr] error: could not compile `lib3d6` (lib) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "6a83aff751890f20c83cd60f49770f698c9465e2abc219999a3a108f0dcddacb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6a83aff751890f20c83cd60f49770f698c9465e2abc219999a3a108f0dcddacb", kill_on_drop: false }`
[INFO] [stdout] 6a83aff751890f20c83cd60f49770f698c9465e2abc219999a3a108f0dcddacb