[INFO] cloning repository https://github.com/cdelauder/learn_rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/cdelauder/learn_rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcdelauder%2Flearn_rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcdelauder%2Flearn_rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4c544408049cc7a6e43c41a36515c144eedb034c
[INFO] checking cdelauder/learn_rust against master#af4a5a13a15fa0c60e06321077ef452f769b42fd for pr-122960-4
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcdelauder%2Flearn_rust" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/cdelauder/learn_rust on toolchain af4a5a13a15fa0c60e06321077ef452f769b42fd
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/cdelauder/learn_rust
[INFO] finished tweaking git repo https://github.com/cdelauder/learn_rust
[INFO] tweaked toml for git repo https://github.com/cdelauder/learn_rust written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/cdelauder/learn_rust 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" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded libc v0.1.7
[INFO] [stderr]   Downloaded rand v0.3.8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a4c97d0e133756af2805cfd98788f6483ceb9effe2c34fd4169084f2fd671ed0
[INFO] running `Command { std: "docker" "start" "-a" "a4c97d0e133756af2805cfd98788f6483ceb9effe2c34fd4169084f2fd671ed0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a4c97d0e133756af2805cfd98788f6483ceb9effe2c34fd4169084f2fd671ed0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a4c97d0e133756af2805cfd98788f6483ceb9effe2c34fd4169084f2fd671ed0", kill_on_drop: false }`
[INFO] [stdout] a4c97d0e133756af2805cfd98788f6483ceb9effe2c34fd4169084f2fd671ed0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c7057389d21e648b82c034b08c9bbaee7a49f11669d808d1c4b934fa9f9641e4
[INFO] running `Command { std: "docker" "start" "-a" "c7057389d21e648b82c034b08c9bbaee7a49f11669d808d1c4b934fa9f9641e4", kill_on_drop: false }`
[INFO] [stderr]     Checking libc v0.1.7
[INFO] [stderr]     Checking rand v0.3.8
[INFO] [stdout] error[E0277]: the size for values of type `Self` cannot be known at compilation time
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/rand-0.3.8/src/distributions/range.rs:83:50
[INFO] [stdout]    |
[INFO] [stdout] 83 |     fn construct_range(low: Self, high: Self) -> Range<Self>;
[INFO] [stdout]    |                                                  ^^^^^^^^^^^ doesn't have a size known at compile-time
[INFO] [stdout]    |
[INFO] [stdout] note: required by an implicit `Sized` bound in `range::Range`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/rand-0.3.8/src/distributions/range.rs:50:18
[INFO] [stdout]    |
[INFO] [stdout] 50 | pub struct Range<X> {
[INFO] [stdout]    |                  ^ required by the implicit `Sized` requirement on this type parameter in `Range`
[INFO] [stdout] help: you could relax the implicit `Sized` bound on `X` if it were used through indirection like `&X` or `Box<X>`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/rand-0.3.8/src/distributions/range.rs:50:18
[INFO] [stdout]    |
[INFO] [stdout] 50 | pub struct Range<X> {
[INFO] [stdout]    |                  ^ this could be changed to `X: ?Sized`...
[INFO] [stdout] 51 |     low: X,
[INFO] [stdout]    |          - ...if indirection were used here: `Box<X>`
[INFO] [stdout] 52 |     range: X,
[INFO] [stdout]    |            - ...if indirection were used here: `Box<X>`
[INFO] [stdout] 53 |     accept_zone: X
[INFO] [stdout]    |                  - ...if indirection were used here: `Box<X>`
[INFO] [stdout] help: consider further restricting `Self`
[INFO] [stdout]    |
[INFO] [stdout] 83 |     fn construct_range(low: Self, high: Self) -> Range<Self> where Self: Sized;
[INFO] [stdout]    |                                                              +++++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the size for values of type `Self` cannot be known at compilation time
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/rand-0.3.8/src/distributions/range.rs:87:33
[INFO] [stdout]    |
[INFO] [stdout] 87 |     fn sample_range<R: Rng>(r: &Range<Self>, rng: &mut R) -> Self;
[INFO] [stdout]    |                                 ^^^^^^^^^^^ doesn't have a size known at compile-time
[INFO] [stdout]    |
[INFO] [stdout] note: required by an implicit `Sized` bound in `range::Range`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/rand-0.3.8/src/distributions/range.rs:50:18
[INFO] [stdout]    |
[INFO] [stdout] 50 | pub struct Range<X> {
[INFO] [stdout]    |                  ^ required by the implicit `Sized` requirement on this type parameter in `Range`
[INFO] [stdout] help: you could relax the implicit `Sized` bound on `X` if it were used through indirection like `&X` or `Box<X>`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/rand-0.3.8/src/distributions/range.rs:50:18
[INFO] [stdout]    |
[INFO] [stdout] 50 | pub struct Range<X> {
[INFO] [stdout]    |                  ^ this could be changed to `X: ?Sized`...
[INFO] [stdout] 51 |     low: X,
[INFO] [stdout]    |          - ...if indirection were used here: `Box<X>`
[INFO] [stdout] 52 |     range: X,
[INFO] [stdout]    |            - ...if indirection were used here: `Box<X>`
[INFO] [stdout] 53 |     accept_zone: X
[INFO] [stdout]    |                  - ...if indirection were used here: `Box<X>`
[INFO] [stdout] help: consider further restricting `Self`
[INFO] [stdout]    |
[INFO] [stdout] 87 |     fn sample_range<R: Rng>(r: &Range<Self>, rng: &mut R) -> Self where Self: Sized;
[INFO] [stdout]    |                                                                   +++++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0277`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rand` (lib) due to 3 previous errors
[INFO] running `Command { std: "docker" "inspect" "c7057389d21e648b82c034b08c9bbaee7a49f11669d808d1c4b934fa9f9641e4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c7057389d21e648b82c034b08c9bbaee7a49f11669d808d1c4b934fa9f9641e4", kill_on_drop: false }`
[INFO] [stdout] c7057389d21e648b82c034b08c9bbaee7a49f11669d808d1c4b934fa9f9641e4
[INFO] checking cdelauder/learn_rust against try#36dbcaee1a55543dfc181be52a69d99ff46ff62f for pr-122960-4
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcdelauder%2Flearn_rust" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/cdelauder/learn_rust on toolchain 36dbcaee1a55543dfc181be52a69d99ff46ff62f
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+36dbcaee1a55543dfc181be52a69d99ff46ff62f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/cdelauder/learn_rust
[INFO] finished tweaking git repo https://github.com/cdelauder/learn_rust
[INFO] tweaked toml for git repo https://github.com/cdelauder/learn_rust written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/cdelauder/learn_rust 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" "+36dbcaee1a55543dfc181be52a69d99ff46ff62f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+36dbcaee1a55543dfc181be52a69d99ff46ff62f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] bf935dd012d2832735e9a1f8d34df5113b5e14bdaecf5634f099bca4a4ae7d23
[INFO] running `Command { std: "docker" "start" "-a" "bf935dd012d2832735e9a1f8d34df5113b5e14bdaecf5634f099bca4a4ae7d23", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bf935dd012d2832735e9a1f8d34df5113b5e14bdaecf5634f099bca4a4ae7d23", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bf935dd012d2832735e9a1f8d34df5113b5e14bdaecf5634f099bca4a4ae7d23", kill_on_drop: false }`
[INFO] [stdout] bf935dd012d2832735e9a1f8d34df5113b5e14bdaecf5634f099bca4a4ae7d23
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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=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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+36dbcaee1a55543dfc181be52a69d99ff46ff62f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bc59cd441d99677ce46030c769214f653963d22f976fc0549ccee024c4edbeb7
[INFO] running `Command { std: "docker" "start" "-a" "bc59cd441d99677ce46030c769214f653963d22f976fc0549ccee024c4edbeb7", kill_on_drop: false }`
[INFO] [stderr] Copying to /tmp/fixit
[INFO] [stderr] no edition found in manifest, probably 2015, skipping
[INFO] running `Command { std: "docker" "inspect" "bc59cd441d99677ce46030c769214f653963d22f976fc0549ccee024c4edbeb7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bc59cd441d99677ce46030c769214f653963d22f976fc0549ccee024c4edbeb7", kill_on_drop: false }`
[INFO] [stdout] bc59cd441d99677ce46030c769214f653963d22f976fc0549ccee024c4edbeb7