[INFO] cloning repository https://github.com/viperscape/rust-sexp
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/viperscape/rust-sexp" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fviperscape%2Frust-sexp", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fviperscape%2Frust-sexp'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 317ef4ceea600d9abee966eee23ee0550cbee395
[INFO] checking viperscape/rust-sexp against try#ddfd70ee3c3748e597b32f416b0d15a4f6e37685 for pr-87050
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fviperscape%2Frust-sexp" "/workspace/builds/worker-10/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-10/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/viperscape/rust-sexp on toolchain ddfd70ee3c3748e597b32f416b0d15a4f6e37685
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/viperscape/rust-sexp
[INFO] finished tweaking git repo https://github.com/viperscape/rust-sexp
[INFO] tweaked toml for git repo https://github.com/viperscape/rust-sexp written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] crate git repo https://github.com/viperscape/rust-sexp already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: file found to be present in multiple build targets: /workspace/builds/worker-10/source/examples/main.rs
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded regex v0.1.32
[INFO] [stderr]   Downloaded regex-syntax v0.1.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 91bfce5a270aaea5368b81513080420a57f8c2615041b4f1d7a53befe93fd57d
[INFO] running `Command { std: "docker" "start" "-a" "91bfce5a270aaea5368b81513080420a57f8c2615041b4f1d7a53befe93fd57d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "91bfce5a270aaea5368b81513080420a57f8c2615041b4f1d7a53befe93fd57d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "91bfce5a270aaea5368b81513080420a57f8c2615041b4f1d7a53befe93fd57d", kill_on_drop: false }`
[INFO] [stdout] 91bfce5a270aaea5368b81513080420a57f8c2615041b4f1d7a53befe93fd57d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 990e3ee38540bc8bd9520d4ac4efb9d98ea3ba26c3d0adb36b2436efc5aeaafa
[INFO] running `Command { std: "docker" "start" "-a" "990e3ee38540bc8bd9520d4ac4efb9d98ea3ba26c3d0adb36b2436efc5aeaafa", kill_on_drop: false }`
[INFO] [stderr] warning: file found to be present in multiple build targets: /opt/rustwide/workdir/examples/main.rs
[INFO] [stderr]     Checking regex-syntax v0.1.0
[INFO] [stderr]     Checking regex v0.1.32
[INFO] [stderr]     Checking sexp v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0599]: no function or associated item named `from_str` found for struct `String` in the current scope
[INFO] [stdout]   --> src/lib.rs:41:57
[INFO] [stdout]    |
[INFO] [stdout] 41 |             if s.is_some() {scope.push(Exp::Sym(String::from_str(s.unwrap())));}
[INFO] [stdout]    |                                                         ^^^^^^^^ function or associated item not found in `String`
[INFO] [stdout]    |
[INFO] [stdout]    = help: items from traits can only be used if the trait is in scope
[INFO] [stdout] help: the following trait is implemented but not in scope; perhaps add a `use` for it:
[INFO] [stdout]    |
[INFO] [stdout] 9  | use std::str::FromStr;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no function or associated item named `from_str` found for struct `String` in the current scope
[INFO] [stdout]   --> src/lib.rs:42:64
[INFO] [stdout]    |
[INFO] [stdout] 42 |             else if qs.is_some() {scope.push(Exp::QSym(String::from_str(qs.unwrap())));}
[INFO] [stdout]    |                                                                ^^^^^^^^ function or associated item not found in `String`
[INFO] [stdout]    |
[INFO] [stdout]    = help: items from traits can only be used if the trait is in scope
[INFO] [stdout] help: the following trait is implemented but not in scope; perhaps add a `use` for it:
[INFO] [stdout]    |
[INFO] [stdout] 9  | use std::str::FromStr;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no function or associated item named `from_str` found for struct `String` in the current scope
[INFO] [stdout]   --> src/lib.rs:41:57
[INFO] [stdout]    |
[INFO] [stdout] 41 |             if s.is_some() {scope.push(Exp::Sym(String::from_str(s.unwrap())));}
[INFO] [stdout]    |                                                         ^^^^^^^^ function or associated item not found in `String`
[INFO] [stdout]    |
[INFO] [stdout]    = help: items from traits can only be used if the trait is in scope
[INFO] [stdout] help: the following trait is implemented but not in scope; perhaps add a `use` for it:
[INFO] [stdout]    |
[INFO] [stdout] 9  | use std::str::FromStr;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no function or associated item named `from_str` found for struct `String` in the current scope
[INFO] [stdout]   --> src/lib.rs:42:64
[INFO] [stdout]    |
[INFO] [stdout] 42 |             else if qs.is_some() {scope.push(Exp::QSym(String::from_str(qs.unwrap())));}
[INFO] [stdout]    |                                                                ^^^^^^^^ function or associated item not found in `String`
[INFO] [stdout]    |
[INFO] [stdout]    = help: items from traits can only be used if the trait is in scope
[INFO] [stdout] help: the following trait is implemented but not in scope; perhaps add a `use` for it:
[INFO] [stdout]    |
[INFO] [stdout] 9  | use std::str::FromStr;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `sexp`
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0599`.
[INFO] [stdout] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[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: build failed
[INFO] running `Command { std: "docker" "inspect" "990e3ee38540bc8bd9520d4ac4efb9d98ea3ba26c3d0adb36b2436efc5aeaafa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "990e3ee38540bc8bd9520d4ac4efb9d98ea3ba26c3d0adb36b2436efc5aeaafa", kill_on_drop: false }`
[INFO] [stdout] 990e3ee38540bc8bd9520d4ac4efb9d98ea3ba26c3d0adb36b2436efc5aeaafa