[INFO] fetching crate expression-closed01 0.2.1...
[INFO] checking expression-closed01-0.2.1 against master#5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f for pr-87248
[INFO] extracting crate expression-closed01 0.2.1 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate expression-closed01 0.2.1 on toolchain 5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate expression-closed01 0.2.1
[INFO] finished tweaking crates.io crate expression-closed01 0.2.1
[INFO] tweaked toml for crates.io crate expression-closed01 0.2.1 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "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-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 85ee12b4cacb2f032dc6ae0bcd09128d50f5c1e6435d4a8c310e860d5bf50716
[INFO] running `Command { std: "docker" "start" "-a" "85ee12b4cacb2f032dc6ae0bcd09128d50f5c1e6435d4a8c310e860d5bf50716", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "85ee12b4cacb2f032dc6ae0bcd09128d50f5c1e6435d4a8c310e860d5bf50716", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "85ee12b4cacb2f032dc6ae0bcd09128d50f5c1e6435d4a8c310e860d5bf50716", kill_on_drop: false }`
[INFO] [stdout] 85ee12b4cacb2f032dc6ae0bcd09128d50f5c1e6435d4a8c310e860d5bf50716
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cb5f705f0638e89e2e40adb478404c5b2b150636fc4b4d051f8b22ecd9e87feb
[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" "cb5f705f0638e89e2e40adb478404c5b2b150636fc4b4d051f8b22ecd9e87feb", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.98
[INFO] [stderr]     Checking asexp v0.3.2
[INFO] [stderr]     Checking asexp v0.2.0
[INFO] [stdout] error[E0599]: no method named `slice_shift_char` found for reference `&str` in the current scope
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/asexp-0.2.0/src/atom.rs:109:13
[INFO] [stdout]     |
[INFO] [stdout] 109 |     match s.slice_shift_char() {
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^ method not found in `&str`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking expression v0.3.4
[INFO] [stdout] error[E0599]: no method named `slice_shift_char` found for reference `&'a str` in the current scope
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/asexp-0.2.0/src/token.rs:58:13
[INFO] [stdout]    |
[INFO] [stdout] 58 |     match s.slice_shift_char() {
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^ method not found in `&'a str`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `slice_shift_char` found for reference `&str` in the current scope
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/asexp-0.2.0/src/token.rs:82:36
[INFO] [stdout]    |
[INFO] [stdout] 82 |                         match rest.slice_shift_char() {
[INFO] [stdout]    |                                    ^^^^^^^^^^^^^^^^ method not found in `&str`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `slice_shift_char` found for reference `&str` in the current scope
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/asexp-0.2.0/src/token.rs:97:52
[INFO] [stdout]    |
[INFO] [stdout] 97 | ...                   match rest.slice_shift_char() {
[INFO] [stdout]    |                                  ^^^^^^^^^^^^^^^^ method not found in `&str`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `slice_shift_char` found for reference `&str` in the current scope
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/asexp-0.2.0/src/token.rs:137:30
[INFO] [stdout]     |
[INFO] [stdout] 137 |                     match s2.slice_shift_char() {
[INFO] [stdout]     |                              ^^^^^^^^^^^^^^^^ method not found in `&str`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 5 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0599`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `asexp` due to 6 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "cb5f705f0638e89e2e40adb478404c5b2b150636fc4b4d051f8b22ecd9e87feb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cb5f705f0638e89e2e40adb478404c5b2b150636fc4b4d051f8b22ecd9e87feb", kill_on_drop: false }`
[INFO] [stdout] cb5f705f0638e89e2e40adb478404c5b2b150636fc4b4d051f8b22ecd9e87feb