[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 try#38c2997544af84fe301d600d6896397738163002 for pr-154205-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FGeorge3d6%2Flib3d6" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[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-4-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/George3d6/lib3d6 on toolchain 38c2997544af84fe301d600d6896397738163002
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+38c2997544af84fe301d600d6896397738163002" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[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" "+38c2997544af84fe301d600d6896397738163002" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+38c2997544af84fe301d600d6896397738163002" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 708c5a8b146eec984222996b336bb2ea84288b68e085fc7df5355f0f4dbbf446
[INFO] running `Command { std: "docker" "start" "-a" "708c5a8b146eec984222996b336bb2ea84288b68e085fc7df5355f0f4dbbf446", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "708c5a8b146eec984222996b336bb2ea84288b68e085fc7df5355f0f4dbbf446", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "708c5a8b146eec984222996b336bb2ea84288b68e085fc7df5355f0f4dbbf446", kill_on_drop: false }`
[INFO] [stdout] 708c5a8b146eec984222996b336bb2ea84288b68e085fc7df5355f0f4dbbf446
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+38c2997544af84fe301d600d6896397738163002" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] acb09ba91719251a3bb0676af5a6eb857876e89b9f0a28f7fe824d97ad2b0a1d
[INFO] running `Command { std: "docker" "start" "-a" "acb09ba91719251a3bb0676af5a6eb857876e89b9f0a28f7fe824d97ad2b0a1d", kill_on_drop: false }`
[INFO] [stderr]    Compiling lib3d6 v0.0.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `launch_tmux`
[INFO] [stdout]  --> src/lib.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | use tmux::{launch_tmux};
[INFO] [stdout]   |            ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] [FMTARGS] {"crate":"lib3d6","loc":"src/tmux/mod.rs:17:34","p":1,"ph":1,"wa":0,"pa":0,"a":1,"pos":1,"named":0,"cap":0,"ucap":0,"dup":0,"const":0,"constparam":0,"other_dup":0,"d2":0,"d3":0,"d4p":0,"deduped":0,"remaining":0,"a_old":1,"a_opt":1,"sz_no_dedup":16,"sz_old":16,"sz_opt":16}
[INFO] [stdout] warning: unused import: `launch_tmux`
[INFO] [stdout]  --> src/lib.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | use tmux::{launch_tmux};
[INFO] [stdout]   |            ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] [FMTARGS] {"crate":"lib3d6","loc":"src/tmux/mod.rs:17:34","p":1,"ph":1,"wa":0,"pa":0,"a":1,"pos":1,"named":0,"cap":0,"ucap":0,"dup":0,"const":0,"constparam":0,"other_dup":0,"d2":0,"d3":0,"d4p":0,"deduped":0,"remaining":0,"a_old":1,"a_opt":1,"sz_no_dedup":16,"sz_old":16,"sz_opt":16}
[INFO] [stdout] warning: unused import: `launch_tmux`
[INFO] [stdout]  --> src/lib.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | use tmux::{launch_tmux};
[INFO] [stdout]   |            ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] [FMTARGS] {"crate":"lib3d6","loc":"src/tmux/mod.rs:17:34","p":1,"ph":1,"wa":0,"pa":0,"a":1,"pos":1,"named":0,"cap":0,"ucap":0,"dup":0,"const":0,"constparam":0,"other_dup":0,"d2":0,"d3":0,"d4p":0,"deduped":0,"remaining":0,"a_old":1,"a_opt":1,"sz_no_dedup":16,"sz_old":16,"sz_opt":16}
[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]   |
[INFO] [stdout]  --> /rustc/38c2997544af84fe301d600d6896397738163002/library/std/src/io/mod.rs:991:7
[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/38c2997544af84fe301d600d6896397738163002/library/std/src/io/mod.rs:935:4
[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]   |
[INFO] [stdout]  --> /rustc/38c2997544af84fe301d600d6896397738163002/library/std/src/io/mod.rs:991:7
[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/38c2997544af84fe301d600d6896397738163002/library/std/src/io/mod.rs:935:4
[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]   |
[INFO] [stdout]  --> /rustc/38c2997544af84fe301d600d6896397738163002/library/std/src/io/mod.rs:991:7
[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/38c2997544af84fe301d600d6896397738163002/library/std/src/io/mod.rs:935:4
[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] warning: unused variable: `output`
[INFO] [stdout]   --> src/tmux/mod.rs:15:9
[INFO] [stdout]    |
[INFO] [stdout] 15 |     let output = Command::new("tmux")
[INFO] [stdout]    |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_output`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `output`
[INFO] [stdout]   --> src/tmux/mod.rs:15:9
[INFO] [stdout]    |
[INFO] [stdout] 15 |     let output = Command::new("tmux")
[INFO] [stdout]    |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_output`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0599`.
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0599`.
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `output`
[INFO] [stdout]   --> src/tmux/mod.rs:15:9
[INFO] [stdout]    |
[INFO] [stdout] 15 |     let output = Command::new("tmux")
[INFO] [stdout]    |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_output`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `lib3d6` (lib) due to 1 previous error; 2 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] For more information about this error, try `rustc --explain E0599`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `lib3d6` (lib test) due to 1 previous error; 2 warnings emitted
[INFO] [stderr] error: could not compile `lib3d6` (lib) due to 1 previous error; 2 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "acb09ba91719251a3bb0676af5a6eb857876e89b9f0a28f7fe824d97ad2b0a1d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "acb09ba91719251a3bb0676af5a6eb857876e89b9f0a28f7fe824d97ad2b0a1d", kill_on_drop: false }`
[INFO] [stdout] acb09ba91719251a3bb0676af5a6eb857876e89b9f0a28f7fe824d97ad2b0a1d